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1

Dermopathy of Graves' disease: Clinico-pathological correlation  

PubMed Central

Dermopathy of Graves’ disease is a classical, but uncommon extrathyroidal manifestation of Graves’ disease. The images of a typical case of dermopathy of Graves’ disease are presented along with clinico-pathological correlation.

Reddy, Sagili Vijaya Bhaskar; Gupta, Sushil Kumar; Jain, Manoj

2012-01-01

2

[Clinico-epidemiologic characteristics of the health status of miners].  

PubMed

Clinico-epidemiological examination of 1944 miners working in mines with sloping layers revealed the incidence of diseases of the main systems of the body. It was found that emotional stresses further the development of primary hypertension in miners with a small length of work. Nonprofessional changes of the hearing organ are evaluated. PMID:2609603

Nekhorosheva, M A; Menia?lo, N I; Valutsina, V M; Kiva, A I; Pankina, O E

1989-09-01

3

Clinico-radiological spectrum of reversible splenial lesions in children.  

PubMed

Recently, many cases of children presenting reversible splenial lesions during febrile illness (RESLEF) have been reported; however, their overall clinico-radiological features are unclear. To describe the clinico-radiological features, we retrospectively reviewed the etiology (pathogen), clinical course, laboratory data, magnetic resonance imaging and electroencephalography (EEG) findings, therapy, and prognosis of 23 episodes in 22 children (1 child recurred) who presented neurological symptoms, with RESLEF. The etiologies (pathogens) varied. Seizure occurred in 7 episodes, disturbance of consciousness (DC) in 13, and delirious behavior in 18. Serum sodium levels <136 mEq/L were observed in 18 episodes. Lesions outside the splenium were found in 4 cases. Slow waves were observed on EEG in 10 episodes. Methylprednisolone pulse therapy was given in 7 cases. No case resulted in neurological sequelae. Among 23 episodes, clinically mild encephalitis/encephalopathy with a reversible splenial lesion (MERS) was diagnosed in 6 episodes, whereas non-MERS was observed in 17 episodes. No difference was observed in almost all the clinico-radiological features' data between the 2 groups. The largest differences were observed in the rate of purposeless movement, DC, extension of the abnormal lesions outside the splenium, and marked slowing of background activity on EEG. RESLEF exhibit a spectrum of clinico-radiological features. These results suggest that non-MERS and MERS both are a part of a larger pathological condition, which we have termed as RESLEF spectrum syndrome. Given the view that such a syndrome exists, the clinical characteristics and position of non-MERS and MERS become clear. PMID:23790266

Kashiwagi, Mitsuru; Tanabe, Takuya; Shimakawa, Shuichi; Nakamura, Michiko; Murata, Shinya; Shabana, Kousuke; Shinohara, Jun; Odanaka, Yutaka; Matsumura, Hideki; Maki, Koh; Okumura, Kenichi; Okasora, Keisuke; Tamai, Hiroshi

2014-04-01

4

Degenerative leiomyopathy in children. A clinico-pathological study  

Microsoft Academic Search

The syndrome of degenerative leiomyopathy (DL) causing intestinal obstruction clinically manifests in young indigenous African children as massive megacolon without aganglionosis. We report on a clinico-pathologic study of 18 children seen over a 15-year period. All patients came from the same geographic area. Mean age at presentation was 9.5 years with mean duration of symptoms 4.3 years. The youngest infant

H. Rode; S. W. Moore; R. O. C. Kaschula; R. A. Brown; S. Cywes

1992-01-01

5

Effects of feeding calves genetically modified corn bt11: a clinico-biochemical study.  

PubMed

Genetically modified corn Bt11 is insect-resistant and expresses Cry1Ab toxin, an insecticidal protein, in kernels. Although Bt11 corn is considered safe based on animal performance, there are no reports available on the clinico-biochemical effects of feeding it to cattle. In this study, we evaluated the effects of feeding Bt11 to calves, using blood and ruminal clinico-biochemical parameters. Our three-month-long feeding experiment demonstrated that calves (n=6), fed with a ration containing 43.3% of Bt11 corn kernels as dry matter, did not develop any discernible clinical, hematological, biochemical, or ruminal abnormalities as compared with control calves (n=6) fed non-Bt11 corn. The results suggest that the transgenic Bt11 has no negative clinico-biochemical effects on calves. PMID:17085894

Shimada, Nobuaki; Murata, Hideo; Mikami, Osamu; Yoshioka, Miyako; Guruge, Keerthi S; Yamanaka, Noriko; Nakajima, Yasuyuki; Miyazaki, Shigeru

2006-10-01

6

Beyond cortical localization in clinico-anatomical correlation.  

PubMed

Last year was the 150th anniversary of Paul Broca's landmark case report on speech disorder that paved the way for subsequent studies of cortical localization of higher cognitive functions. However, many complex functions rely on the activity of distributed networks rather than single cortical areas. Hence, it is important to understand how brain regions are linked within large-scale networks and to map lesions onto connecting white matter tracts. To facilitate this network approach we provide a synopsis of classical neurological syndromes associated with frontal, parietal, occipital, temporal and limbic lesions. A review of tractography studies in a variety of neuropsychiatric disorders is also included. The synopsis is accompanied by a new atlas of the human white matter connections based on diffusion tensor tractography freely downloadable on http://www.natbrainlab.com. Clinicians can use the maps to accurately identify the tract affected by lesions visible on conventional CT or MRI. The atlas will also assist researchers to interpret their group analysis results. We hope that the synopsis and the atlas by allowing a precise localization of white matter lesions and associated symptoms will facilitate future work on the functional correlates of human neural networks as derived from the study of clinical populations. Our goal is to stimulate clinicians to develop a critical approach to clinico-anatomical correlative studies and broaden their view of clinical anatomy beyond the cortical surface in order to encompass the dysfunction related to connecting pathways. PMID:22995574

Catani, Marco; Dell'acqua, Flavio; Bizzi, Alberto; Forkel, Stephanie J; Williams, Steve C; Simmons, Andrew; Murphy, Declan G; Thiebaut de Schotten, Michel

2012-01-01

7

Accuracy of clinical diagnosis of idiopathic Parkinson's disease: a clinico-pathological study of 100 cases  

Microsoft Academic Search

Few detailed clinico-pathological correlations of Parkinson's disease have been published. The pathological findings in 100 patients diagnosed prospectively by a group of consultant neurologists as having idiopathic Parkinson's disease are reported. Seventy six had nigral Lewy bodies, and in all of these Lewy bodies were also found in the cerebral cortex. In 24 cases without Lewy bodies, diagnoses included progressive

A J Hughes; S E Daniel; L Kilford; A J Lees

1992-01-01

8

Orbital alveolar soft-part sarcoma: Clinico-pathological profiles, management and outcomes.  

PubMed

Aim: To study the clinico-radiological and clinic-pathological features of orbital alveolar soft-part sarcomas (ASPS). Materials and Methods: We retrieved 9 cases of orbital ASPS. Histopathological and immunohistochemical features and clinico-radiological findings were evaluated. Results: Age at presentation varied from 1 to 31 years. Both, children and adults were affected. Proptosis was the most common clinical presentation. PAS-positive diastase-resistant crystals and granules were found in all cases. All patients received adjuvant radiotherapy. Two cases had positive surgical margins and were treated with additional adjuvant chemotherapy. None of the patients had recurrence or metastases till the last follow up. Conclusion: Early diagnosis with a multidisciplinary, multimodal approach of treatment is quintessential in achieving a long disease-free survival in patients with ASPS. PMID:25022380

Mulay, Kaustubh; Ali, Mohammad Javed; Honavar, Santosh G; Reddy, Vijay Anand P

2014-01-01

9

Tracheal lesion caused by percutaneous dilatational tracheostomy – a clinico-pathological study  

Microsoft Academic Search

Objective: To analyse the accuracy of cannula placement and the extent of tracheal lesions of the anterior tracheal wall after percutaneous\\u000a dilatational tracheostomy (PDT). Design: A clinico-pathological study of tracheal specimens following PDT. Setting: University hospital. Materials: Forty-two tracheal specimens of intensive care patients (24 male, 18 female; age: 23–70 years) who died unrelated to tracheostomy.\\u000a Interventions: Using tracheoscopic guidance,

M. K. Walz; U. Schmidt

1999-01-01

10

[Clinico-functional and morphological characteristics of the stomach in patients with vibration disease].  

PubMed

The contributors provide research data on the clinical manifestations, secretory and pepsinogenous function, morphological and histologic structures of stomach diseases caused by local vibration induced vibration disease. A correlation was established depending on the duration of work. As a result of clinico-functional and morphologic techniques used, no full correlation was traced between the stomach structure and function in VD patients, which seem to be of practical value for medical examination of workers engaged in unfavorable working conditions. PMID:2210422

Fidurov, Ia N; Chumachenko, P A; Ladneva, G A; Bakhovkina, O V

1990-01-01

11

Clinico-pathological features of bladder carcinoma: Experience from a tertiary care hospital of Pakistan  

Microsoft Academic Search

Bladder carcinoma is most common urological malignancy in Pakistan. The objective of the study was to determine the clinico-pathological\\u000a characteristics of histologically confirmed bladder carcinoma at a tertiary care hospital of South Punjab, Pakistan. Methods: In two hundreds and twenty one patients (172 male and 49 female) bladder carcinoma was diagnosed from Jan 1998 to June 2005.\\u000a All patients were

Muhammad Rafique; Abrar A. Javed

2006-01-01

12

Can we overcome the 'clinico-radiological paradox' in multiple sclerosis?  

PubMed

The association between common neuroradiological markers of multiple sclerosis (MS) and clinical disability is weak, a phenomenon known as the clinico-radiological paradox. Here, we investigated to which degree it is possible to predict individual disease profiles from conventional magnetic resonance imaging (MRI) using multivariate analysis algorithms. Specifically, we conducted cross-validated canonical correlation analyses to investigate the predictive information contained in conventional MRI data of 40 MS patients for the following clinical parameters: disease duration, motor disability (9-Hole Peg Test, Timed 25-Foot Walk Test), cognitive dysfunction (Paced Auditory Serial Addition Test), and the expanded disability status scale (EDSS). It turned out that the information in the spatial patterning of MRI data predicted the clinical scores with correlations of up to 0.80 (p < 10(-9)). Maximal predictive information for disease duration was identified in the precuneus and somatosensory cortex. Areas in the precuneus and precentral gyrus were maximally informative for motor disability. Cognitive dysfunction could best be predicted using data from the angular gyrus and superior parietal lobe. For EDSS, the inferior frontal gyrus was maximally informative. In conclusion, conventional MRI is highly predictive of clinical disability in MS when pattern-based algorithms are used for prediction. Thus, the so-called clinico-radiological paradox is not apparent when using suitable analysis techniques. PMID:22446893

Hackmack, Kerstin; Weygandt, Martin; Wuerfel, Jens; Pfueller, Caspar F; Bellmann-Strobl, Judith; Paul, Friedemann; Haynes, John-Dylan

2012-10-01

13

Some clinico-pathologic findings in elephants (Elephas maximus) infected with Fasciola jacksoni.  

PubMed

Severe submandibular and ventral abdominal oedema was observed in an Asian elephant (Elephas maximus) in which liver flukes (Fasciola jacksoni) were recovered from the bile ducts at post-mortem examination. Clinico-pathologic examination of blood samples and serum from this elephant and another 8 elephants showed that most had anemia and hypoproteinemia. Fecal samples from 6 of the elephants contained from 6 to 83 eggs per gram. Treatment of elephants with nitroxynil (10 mg/kg) by subcutaneous injection produced severe local reactions at the injection site. Feces collected 2 and 4 months after treatment were free of trematode eggs. Hematologic values measured 4 months after treatment showed that the hemoglobin concentration, packed cell volume, erythrocyte count and plasma protein concentration had increased to within the normal range. PMID:633508

Caple, I W; Jainudeen, M R; Buick, T D; Song, C Y

1978-01-01

14

Emerging Patterns in Clinico-pathological spectrum of Oral Cancers.  

PubMed

Objective: To correlate the clinico-pathological aspects of Oral Squamous Cell Carcinoma (OSCC) with risk factors to determine the present status and variations in the profile. Methodology: One hundred patients of OSCC and one hundred age and sex matched controls were selected. Detailed demographic data, regarding age, gender, marital status, ethnicity, religion, socio-economic status along with habits, betel quid, tobacco chewing / smoking, alcohol and dietary habits was recorded. Detailed oral examination was carried out for the site of involvement and associated pathology. Histological grade was determined on microscopic examination of Hemotoxylin & Eosin (H&E) stained slides. One hundred age and sex matched controls were also evaluated for this study. Results: Ages of patients ranged from 25 to 80 years with mean age being 47.84 ± 12.18(SD). Maximum cases were detected in the fifth decade. Male: Female ratio was 2.8:1. Age in controls ranged from 22 -73 with male to female ratio being 3.54:1. In patients, most tumors were seen in buccal cavity (54%) followed by tongue (24%). Histologically 60% cases were well differentiated. Strong association with tobacco smoking and chewing, betel quid and its substitutes was detected, with smoking being more prevalent in males and betel quid in females. Significantly less number of controls were observed to be involved in these habits, with almost half having no such addictions. Conclusion: The present clinico-pathological status of oral cancer still emphasizes primary prevention by creating awareness against the devastating effects of tobacco use, betel quid, its substitutes and areca nut, which can go a long way in decreasing the incidence of this disfiguring and lethal condition. PMID:24353628

Akram, Saadia; Mirza, Talat; Aamir Mirza, M; Qureshi, Masood

2013-05-01

15

Progressive anterior operculum syndrome due to FTLD-TDP: a clinico-pathological investigation.  

PubMed

Pathological investigation of progressive anterior operculum syndrome has rarely been reported. We describe clinico-pathological findings in a patient with progressive anterior operculum syndrome. A 74-year-old right-handed man had noticed speech and swallowing difficulties 1 year previously. Neurological examinations showed no abnormality other than a slight limitation of upward gaze and slow tongue movement without fibrillation. We investigated the patient using neuroimaging and neuropsychological examinations and observed him for 2 years until his death, at which point we obtained pathological findings. The patient's facial and masseteric muscles seemed hypotonic with drooling, but he could laugh and yawn normally, showing automatic voluntary dissociation. Palatal and pharyngeal reflexes were normal. Magnetic resonance imaging showed cortical atrophy in the temporal lobes bilaterally. (123)IMP single photon emission computed tomography and positron emission tomography showed decreased blood flow and activity in the frontotemporal lobes, predominantly on the left side. Neuropsychological examinations showed no aphasia, dementia or other neuropsychological abnormality. Intubation fiberscopy, laryngoscopy and video fluorography showed no abnormality. After 6 months his anarthria and dysphagia became aggravated. He died of aspiration pneumonia 2 years after onset. Postmortem examination revealed neuronal degeneration with TDP-43-positive inclusions in the frontal, temporal and insular cortices, consistent with frontotemporal lobar degeneration with TDP inclusions (FTLD-TDP). However, neuronal loss with gliosis was more prominent in the inferior part of the motor cortices, bilaterally. Progressive anterior operculum syndrome could be classified as a variant of FTLD-TDP. PMID:20177696

Otsuki, Mika; Nakagawa, Yoshitsugu; Mori, Fumiaki; Tobioka, Hirotoshi; Yoshida, Hideaki; Tatezawa, Yoshiharu; Tanigawa, Toshio; Takahashi, Ikuko; Yabe, Ichiro; Sasaki, Hidenao; Wakabayashi, Koichi

2010-07-01

16

Blastic Plasmacytoid Dendritic Cell Neoplasms: Clinico-immunohistochemical Correlations in a Series of 91 Patients.  

PubMed

Blastic plasmacytoid dendritic cell neoplasm is a rare clinicopathologic entity, characterized by strong skin tropism and a poor prognosis. The diagnosis is generally made by skin biopsy with appropriate immunohistochemical studies. To identify potential biological prognostic factors for blastic plasmacytoid dendritic cell neoplasm, we performed an extended clinico-immunohistochemical study on a series of 91 well-documented cases collected since 1995 by the French Study Group on Cutaneous Lymphomas. Skin biopsies were analyzed using a panel of 12 immunohistochemical markers (CD4, CD56, CD123, CD303, TCL1, CD68, CD2, CD7, TdT, Ki-67, S100, and MX-1). The results were correlated with survival. The 5 most characteristic markers of this entity (CD4, CD56, CD123, CD303, and TCL1) were expressed simultaneously in only 46% of patients. However, when 4 markers were expressed the diagnosis could still be reliably made without resorting to any additional stains. Expression of TdT and/or S100 correlated with varying degrees of maturation. Statistical survival analyses showed that CD303 expression and high proliferative index (Ki-67) were significantly associated with longer survival. PMID:24441662

Julia, Fanny; Dalle, Stephane; Duru, Gerard; Balme, Brigitte; Vergier, Béatrice; Ortonne, Nicolas; Vignon-Pennamen, Marie D; Costes-Martineau, Valérie; Lamant, Laurence; Dalac, Sophie; Delattre, Claire; Déchelotte, Pierre; Courville, Philippe; Carlotti, Agnès; De Muret, Anne; Fraitag, Sylvie; Levy, Annie; Mitchell, Andrew; Petrella, Tony

2014-05-01

17

A Clinico-Pathological Study of Lichenoid Tissue Reactions-A Tertiary Care experience  

PubMed Central

Introduction: The aim of this article was to study the spectrum of clinico-histopathological lesions with an age and sex distribution in various lichenoid reactions of the skin. The spectrum of clinical diseases which is related to the lichenoid tissue reaction is wider. There is a recent increase in the relatively new subgroups of the lichenoid clinical picture. Material And Methods: This was a one and a half year prospective study which was conducted in the Dermatopathology Section of the Department of Pathology, from January 2011 to June 2012. All the patients who visited the Dermatology Outpatients/ Inpatients Department and presented with lichenoid tissue reactions were included in the study. The selected patients’ clinical findings were noted and their informed consents and an institutional ethical clearance were taken. Light microscopy was used for the histopathological diagnosis. The SPSS, version 14 software was used to analyze the data. Frequencies and percentages were used to describe the data. Results: During the study period, 107 cases were clinically diagnosed as lichenoid reactions, of which 84 cases were concordant on histopathology and 6 cases were diagnosed, solely based on the histology. So, a total of 90 cases were diagnosed histologically, of which 42 were of the Lichen planus type and 48 were lichenoid eruptions. Females were affected more commonly than the males. Conclusion: In our study, the lichenoid reactions were more common in children and the most common prototype was Lichen planus. So, we conclude that histopathology is a dependable tool for identifying the underlying cause in lichenoid reactions.

Kumar U, Mahesh; Yelikar, Balasaheb Ramling; Inamadar, Arun C; Umesh, Swaroopa; Singhal, Amrita; Kushtagi, Anirudha V

2013-01-01

18

Angiocentric glioma: report of clinico-pathologic and genetic findings in 8 cases.  

PubMed

Angiocentric glioma has recently been described as a novel epilepsy associated tumor with distinct clinico-pathologic features. We report the clinical and pathologic findings in 8 additional cases of this rare tumor type and extend its characterization by genomic profiling. Almost all patients had a history of long-standing drug-resistant epilepsy. Cortico-subcortical tumors were located in the temporal and parietal lobes. Seizures began at 3 to 14 years of age and surgery was performed at 6 to 70 years. Histologically, the tumors were characterized by diffuse growth and prominent perivascular tumor cell arrangements with features of astrocytic/ependymal differentiation, but lacking neoplastic neuronal features. Necrosis and vascular proliferation were not observed and mitoses were sparse or absent. MIB-1 proliferation indices ranged from <1% to 5%. Immunohistochemically, all cases stained positively for glial fibrillary acidic protein, vimentin, protein S100B, variably for podoplanin, and showed epithelial membrane antigen-positive cytoplasmic dots. Electron microscopy showed ependymal characteristics in 2 of 3 cases investigated. An analysis of genomic imbalances by chromosomal comparative genomic hybridization revealed loss of chromosomal bands 6q24 to q25 as the only alteration in 1 of 8 cases. In 1 of 3 cases, a high-resolution screen by array-comparative genomic hybridization identified a copy number gain of 2 adjacent clones from chromosomal band 11p11.2 containing the protein-tyrosine phosphatase receptor type J (PTPRJ) gene. All patients are seizure free and without evidence of tumor recurrence at follow-up times ranging from 1/2 to 6.9 years. Our findings support 2 previous reports proposing that angiocentric glioma is a novel glial tumor entity of low-grade malignancy. PMID:18059228

Preusser, Matthias; Hoischen, Alexander; Novak, Klaus; Czech, Thomas; Prayer, Daniela; Hainfellner, Johannes A; Baumgartner, Christoph; Woermann, Friedrich G; Tuxhorn, Ingrid E; Pannek, Heinz W; Bergmann, Markus; Radlwimmer, Bernhard; Villagrán, Rafael; Weber, Ruthild G; Hans, Volkmar H

2007-11-01

19

Fulminant pertussis: a multi-center study with new insights into the clinico-pathological mechanisms.  

PubMed

Pertussis carries a high risk of mortality in very young infants. The mechanism of refractory cardio-respiratory failure is complex and not clearly delineated. We aimed to examine the clinico-pathological features and suggest how they may be related to outcome, by multi-center review of clinical records and post-mortem findings of 10 patients with fulminant pertussis (FP). All cases were less than 8 weeks of age, and required ventilation for worsening respiratory symptoms and inotropic support for severe hemodynamic compromise. All died or underwent extra corporeal membrane oxygenation (ECMO) within 1 week. All had increased leukocyte counts (from 54 to 132 x 10(9)/L) with prominent neutrophilia in 9/10. The post-mortem demonstrated necrotizing bronchitis and bronchiolitis with extensive areas of necrosis of the alveolar epithelium. Hyaline membranes were present in those cases with viral co-infection. Pulmonary blood vessels were filled with leukocytes without well-organized thrombi. Immunodepletion of the thymus, spleen, and lymph nodes was a common feature. Other organisms were isolated as follows; 2/10 cases Para influenza type 3, 2/10 Moraxella catarrhalis, 1/10 each with respiratory syncytial virus (RSV), a coliform organism, methicillin-resistant Staphylococcus aureus (MRSA), Haemophilus influenzae, Stenotrophomonas maltophilia, methicillin-sensitive Staphylococcus aureus (MSSA), and candida tropicalis. We postulate that severe hypoxemia and intractable cardiac failure may be due to the effects of pertussis toxin, necrotizing bronchiolitis, extensive damage to the alveolar epithelium, tenacious airway secretions, and possibly leukostasis with activation of the immunological cascade, all contributing to increased pulmonary vascular resistance. Cellular apoptosis appeared to underlay much of these changes. The secondary immuno-compromise may facilitate co-infection. PMID:19725100

Sawal, Mohammad; Cohen, Marta; Irazuzta, Jose E; Kumar, Ramani; Kirton, Christine; Brundler, Marie-Anne; Evans, Clair Anne; Wilson, John Andrew; Raffeeq, Parakkal; Azaz, Amer; Rotta, Alexandre T; Vora, Ajay; Vohra, Amit; Abboud, Patricia; Mirkin, L David; Cooper, Mehrengise; Dishop, Megan K; Graf, Jeanine M; Petros, Andy; Klonin, Hilary

2009-10-01

20

Relationships between age and late progression of Parkinson's disease: a clinico-pathological study.  

PubMed

To investigate the relationships between age, the advanced clinical stages of Parkinson's disease and neuropathology, we surveyed 129 case records from donors with pathologically proven Parkinson's disease at the Queen Square Brain Bank for Neurological Disorders. Cases were separated into five groups according to age at death, thus comparing patients who reached the advanced stage of the disease at different ages. Four milestones of advanced disease (frequent falls, visual hallucinations, dementia and need for residential care) occurred at a similar time from death in each group. There were no significant differences in disease duration across these age groupings, nor were there differences in the severity and distribution of Lewy body and other pathologies. The milestones of dementia (P < 0.0005) and visual hallucinations (P = 0.02) as well as the accumulation of multiple milestones (P < 0.0005) were associated with high cortical Lewy body scores. Demented cases also had significantly more Alzheimer neurofibrillary and amyloid-beta plaque pathology. Correlation analysis showed that the time intervals between disease onset and recording of milestones were strongly influenced by age at onset (P < 0.0001) and by total disease duration (P < 0.0001). The advanced disease phase plays out in a similar fashion at whatever age it occurs, with a common pathological endpoint. The clinico-pathological comparisons for the final stage of Parkinson's disease do support a staging system based on the rostral extent and severity of Lewy body pathology, although other pathologies may play a synergistic role in causing cognitive disability. The chief effects of age on the rate of progression are seen over the early-middle part of the disease. An exponential curve for clinical progression provides the best explanation for these observations about age and the disease course. PMID:20371510

Kempster, Peter A; O'Sullivan, Sean S; Holton, Janice L; Revesz, Tamas; Lees, Andrew J

2010-06-01

21

Alzheimer's disease and the frontotemporal dementias: contributions to clinico-pathological studies, diagnosis, and cognitive neuroscience.  

PubMed

This review focuses on six key papers published in the mid 2000 s based on work conducted in Cambridge. The first two relate to clinico-pathological studies which established that Alzheimer's disease (AD) is a relatively common cause of focal cortical syndromes, notably progressive aphasia (largely nonfluent), progressive apraxia, and posterior cortical atrophy with complex visual symptoms. Building on these findings, criteria for the progressive aphasias have been developed which define the variant associated with AD (progressive logopenic aphasia). Memory in the dementias has been a major area of interest and one paper discussed here explored the neural basis for episodic and semantic memory failure in AD and semantic dementia. Despite very different memory profiles, the two disorders both cause severe hippocampal hypometabolism and atrophy but differ in the degree of involvement of other memory related structures. This work drew attention to the role of pathology in non-hippocampal structures early in AD. The next two articles deal with the behavioral variant frontotemporal dementia (bvFTD) which we have shown is associated with breakdown in theory of mind, social reasoning, empathy, and emotion processing and contributed towork on the neural basis of social cognition. We also identified a subgroup of bvFTD who fail to progress over many years, termed phenocopy cases, who are differentiated by their lack of atrophy on MRI. The final paper described the application of the Addenbrooke's Cognitive Examination-Revised, which has proven a useful brief assessment tool for the early detection of a range of neurodegenerative disorders including AD and FTD. It also appears to be helpful in predicting those with mild cognitive impairment who will progress to frank dementia. PMID:22766737

Hodges, John R

2013-01-01

22

Clinico-morphological patterns of breast cancer including family history in a New Delhi hospital, India-A cross-sectional study  

Microsoft Academic Search

BACKGROUND: Breast cancer is the second most common malignancy among women, next to cervix cancer. Understanding its pathogenesis, morphological features and various risk-factors, including family history holds a great promise for the treatment, early detection and prevention of this cancer. PATIENTS AND METHODS: In an attempt to evaluate the clinico-morphological patterns of breast cancer patients, including their family history of

Sunita Saxena; Bharat Rekhi; Anju Bansal; Ashok Bagga; Chintamani; Nandagudi S Murthy

2005-01-01

23

Correlations between Integrin ???6 Expression and Clinico-Pathological Features in Stage B and Stage C Rectal Cancer  

PubMed Central

Integrin ???6 is highly expressed in a range of human cancers and frequently correlates with patient survival. This study examines correlations between ???6 expression and patient clinico-pathological features in Stage B and Stage C rectal cancer, including overall survival. Expression of ???6 was measured in 362 Stage B or C rectal cancer tissue samples at the tumour central region, invasive tumour front and adjacent non-neoplastic mucosa using immunohistochemistry. Distribution of ???6 was found to be significantly higher at the invasive front compared to central regions of the tumour (p<0.001) or adjacent non-neoplastic mucosa (p<0.001) suggesting ???6 plays a role in tumour cell invasion. However, integrin ???6 expression was not associated with clinico-pathological features or overall survival indicating it is not an independent prognostic marker differentiating Stage B or C rectal cancer. Previous ???6 studies have suggested the expression of ???6 is involved in the earlier stages (i.e. Stages A/B) of tumour progression rather than the later stages (i.e. Stages C/D). However, our study has revealed that in rectal cancer ???6 expression does not increase between Stages B and C, but may occur earlier, namely before or during Stage B cancer.

Ahn, Seong Beom; Mohamedali, Abidali; Chan, Charles; Fletcher, Julie; Kwun, Sun Young; Clarke, Candice; Dent, Owen F.; Chapuis, Pierre H.; Nice, Edouard; Baker, Mark S.

2014-01-01

24

[Report on clinico-pathological examinations in Meikai University (formerly Josai Dental University) Hospital (4)].  

PubMed

This clinico-pathological study was conducted to examine biopsies and surgical specimens for histopathological diagnosis from April 1983 to March 1988 in Meikai University (formerly Josai Dental University) Hospital. The following statistical results were obtained: 1) The total number of the specimens examined was 2705, 2026 from the dental clinic and 679 from the medical clinic. 2) Concerning age distribution, most specimens from the dental clinic were from patients in the 40's age bracket, whereas most from the medical clinic were from those under 10 years of age. With regard to sex distribution, the difference between males and females was not so much in the dental clinic specimens, but the number from the medical clinic was greater for males than for females. 3) Concerning classification of the tumors from the dental clinic, 181 cases were benign; and of them 41 were odontogenic and 140 were non-odontogenic tumors. Among the odontogenic tumors, ameloblastoma, cementoma, and odontoma were the most numerous. Among non-odontogenic tumors, fibroma was the most common, followed by pleomorphic adenoma. Malignant tumors comprised 77 cases. Of them squamous cell carcinoma was the most commonly found, with the grade-2 type being most numerous. Of the medical clinic tumors, nevus was the most common benign tumor observed; and adenocarcinoma, the most common malignant one. 4) Concerning the distribution of main lesions in the dental clinic specimens, most specimens were cysts or cystic lesions, followed by inflammatory lesions and tumors. Among medical clinic specimens, inflammatory lesions were the most common. 5) Regarding the dental clinic specimens, the most frequently observed case was the radicular cyst (301 samples) among the odontogenic cysts (514 samples); and among non-odontogenic cysts (290 samples), the most common was the mucous cyst (159 samples). 5) In terms of the distribution by location, tissue or organ, most tumors from the dental clinic were from the jaws, followed in descending frequency by those from gingiva and alveolar mucosa, maxillary sinus, lip, buccal mucosa, and tongue. Among the medical clinic tumors, the paranasal cavity and tonsils were the most frequent locations. PMID:2134898

Utsumi, N; Tajima, Y; Oi, T; Ohno, J; Shikata, H; Seki, T; Miyamoto, N; Kanada, K; Yokoyama, S; Shimada, J

1990-01-01

25

Some clinico-epidemiological aspect of bronchiolitis among infants and young children--a hospital based study.  

PubMed

A hospital based prospective study was carried out from 1st October 1998 to 30th September 1999 on children with clinical diagnosis of bronchiolitis in OPD and indoor patients of the Department of Paediatric Medicine, Medical College Kolkata. The objective of the study was to find out the proportional case rate and clinico epidemiological features of the disease. The effectiveness of nebulized salbutamol among bronchiolitis children was also looked into. The proportional case rate was found to be 4.65%. Low birth weight (LBW)/premature babies (51.11%) malnutrition (40%), nonimmunization (55.55%) & non breastfeeding practices (48.88%) were significant risk factors for severe bronchiolitis. Response to nebulized salbutamol was remarkably higher (70%) in 6m to 12m age group. PMID:15129856

Das, P K; Saha, J B; Basu, K; Lahiri, S; Sarkar, G N

2003-01-01

26

Carcinoma in situ of the female breast. A clinico-pathological, immunohistological, and DNA ploidy study.  

PubMed

Carcinoma in situ of the breast (CIS) comprise a heterogenous group of lesions, covering a wide spectrum of clinical conditions and histopathological changes. With respect to biological behavior, CIS range from biologically aggressive lesions with a substantial risk of progression into invasive carcinoma (IC), to lesions with a very low malignant potential. Two main types of CIS are described--ductal carcinoma in situ (DCIS) and lobular carcinoma in situ (LCIS). Previous studies of CIS indicate that approximately a third will subsequently develop IC. Autopsy studies indicate that CIS is frequently occurring and it was estimated that about 20% of all women will develop CIS during lifetime. Only a minor fraction is ever diagnosed, although the incidence of DCIS is increasing, especially related to mammography screening. The lack of knowledge about the biological significance of the histopathological subtypes was the background of the present study. In 1982, a nationwide, prospective study of CIS (protocol DBCG 82-IS) was initiated by the Danish Breast Cancer Cooperative Group (DBCG). From this protocol, the group of patients treated with breast conservation surgery (BCS) constituted the material for clinico-histological investigation. A total of 275 women were included in the period 1982-89. Follow-up studies showed that recurrence rate was significantly related to nuclear size of the primary lesion. Since nuclear changes might be related to DNA content and, furthermore, many invasive breast carcinomas were shown to be DNA aneuploid, flow cytometric (FCM) DNA ploidy analysis was performed in a series of DCIS lesions. More than 80% of these lesions were DNA aneuploid, with a distribution similar to that found in invasive carcinomas. This finding raised the hypothesis that the DNA pattern of an invasive carcinoma was already established at the preinvasive stage of DCIS. Therefore, FCM DNA analysis was performed on a series of ICs with predominance of DCIS. Partial or complete concordance in DNA ploidy between DCIS and IC within the individual case was found in most cases, except for the additional presence in the IC component of DNA hyperdiploid clones that might possibly be of importance for the process of invasion. In order to further characterize CIS lesions and, possibly, to discriminate biologically different groups, immunohistochemical markers were investigated in a consecutive series of CIS and IC with predominance of DCIS. The results were correlated to the histopathological and DNA ploidy findings. In DCIS, significant correlation was shown between large nuclear size and comedonecrosis, both of which showed also strong association to DNA aneuploidy, high proliferation activity, low steroid receptor content, and overexpression of c-erbB-2 and p53--factors that may indicate an aggressive behavior. Small nuclear CIS, whether LCIS or DCIS, on the contrary, were DNA diploid with low proliferation, and no cases showed overexpression of c-erbB-2 and p53. In IC, comparison of the DCIS and the invasive component showed similar patterns. No significant differences, in neither morphology, immunohistochemistry, nor DNA ploidy, were shown between DCIS without and with invasion. These findings may indicate that none of the parameters in question may on its own be essential for the decisive event of invasive growth. PMID:12874968

Ottesen, Gyda Lolk

2003-01-01

27

[Meningioma in psychiatry. Clinico-pathologic contribution to differential cerebral organic psychosyndrome diagnosis in middle and advanced age].  

PubMed

A clinico-pathological follow-up of mentally ill patients of the Rheinische Landesklinik Düsseldorf between 1960 and 1984 revealed intracranial space-occupying processes in 47 of 1023 post mortem examinations (4.6%). 9 of the 47 cases (19%) were meningiomas. 5 patients of those clinically not diagnosed as having meningioma had signs of raised intracranial pressure at post mortem, in 4 others the meningioma was in incidental finding of presumably lacking clinical significance. 4 other meningioma patients were diagnosed while alive; 2 of them were operated on the tumor. Short- and longterm psychiatric features of meningioma patients bear many similarities with mental symptoms due to other causes in middle and old age with also similar problems in differential diagnosis. There is no raised incidence of meningioma among patients presenting psychiatrically. "Endoform" features in psychopathology are rarely encountered in meningioma patients. According to the pertinent literature an operation in due time ameliorates or abolishes predominantly psychiatric illness in about 80% of meningioma patients. PMID:1696027

Vieregge, P; Reinhardt, V; Kretschmar, C

1990-01-01

28

PAH exposure biomarkers are associated with clinico-chemical changes in the brick kiln workers in Pakistan.  

PubMed

In this study we investigated the clinico-chemical parameters and the level of exposure of brick kiln workers to polycyclic aromatic hydrocarbons (PAHs) in Punjab (Pakistan). The brick kiln workers and a non-occupationally exposed group were recruited for comparative analysis of urinary biomarkers of PAH exposure (i.e. 1-hydroxypyrene (1-OHPyr), ?-naphthol and ?-naphthol) and blood level of superoxide dismutase (SOD), as a biomarker of oxidative stress and other hematologic parameters. Questionnaires were used to document information on socio-demographic characteristics of all the subjects. The analysis of urinary biomarkers showed higher median concentrations of 1-OHPyr, and ?- and ?-naphthols in brick kiln workers (1.53, 3.65 and 1.53?mol/mol-Cr, respectively) than non-occupationally exposed group (0.62, 0.64 and 0.66?mol/mol-Cr, respectively). The 1-OHPyr in brick kiln workers was above the occupational exposure level. Among the clinical parameters of brick kiln workers, hemoglobin (Hb) and red blood cells (RBCs) were very low and closely associate with 1-OHPyr and ?-naphthol. Additionally, the white blood cells (WBCs) and superoxide dismutase (SOD) were also elevated in brick kiln workers, which suggested inflammatory symptoms and high oxidative stress. The results show that regardless of possibly being affected by the poor nutrition, the anemic state and hematological changes observed in brick kiln workers may be associated with their exposure to smoke present in the environment of brick kilns. PMID:24878696

Kamal, Atif; Malik, Riffat Naseem; Martellini, Tania; Cincinelli, Alessandra

2014-08-15

29

Angiosarcoma of the head and neck with intra-oral presentation. A clinico-pathological study of four cases.  

PubMed

Angiosarcoma of the head and neck is a rare malignant tumour that most commonly involves the skin and subcutis, particularly of the scalp. It has been reported in intra-oral locations very rarely. This study reports on the clinico-pathological features of four such cases, in elderly patients and manifesting an aggressive course. All patients were admitted for rapidly enlarging masses involving the hard palate, alveolar crest and retromolar trigone and displaying bone destruction in three cases. Morphologically, three cases were composed by bundles of spindle cells admixed with variably sized abortive vascular channels which only showed slit-like spaces separating large clusters of epithelioid cells. In all instances, intra-cytoplasmic vacuoles containing intact or fragmented red blood cells were distinctly evident. All neoplasms showed consistent CD 31 immunoreactivity and variable degrees of CD 34 and Factor VIII related antigen positivity and were responsible for the death of the patients, for local progression or lung metastases, within 6 months from the original diagnosis. Due to their rarity, angiosarcomas with intra-oral presentation may be diagnosed with difficulty, especially on small incisional biopsies. and their differentiation from spindle cell carcinoma, malignant melanoma, anaplastic lymphoma, malignant myoepithelioma and other sarcomas that more commonly arise at this site should be based on accurate immunohistochemical characterisation. PMID:12570054

Favia, Gianfranco; Lo Muzio, Lorenzo; Serpico, Rosario; Maiorano, Eugenio

2002-12-01

30

The clinico-surgico-pathological spectrum of myxopapillary ependymomas--report of four unusal cases and review of the literature.  

PubMed

According to the WHO grading system, myxopapillary ependymomas are assigned to WHO Grade I. However, the clinico-pathological spectrum might be very heterogenous. Herein, we report 4 cases exhibiting lumbar tumor masses, 1 causing muscular atrophy over a 30-year period, 3 displaying clinical history of persisting lumbar pain for only several weeks. All tumors were crooked with dura and spinal roots resulting in incomplete resection in three cases. On histological examination, two tumors were almost acellular and showed polycyclic hyaline and fibrotic extracellular matrix leading to differential diagnoses of chordoma, meningioma, fibrolipoma and ependymoma. Finally, together with the immunohistochemical investigations, electron microscopy led to the diagnosis of myxopapillary ependymoma, WHO Grade I, with massive degenerative changes. The other 2 cases presented with the typical neuropathology of myxopapillary ependymomas but showed local recurrence within 1 and 13 years throughout the whole neuraxis, and in 1 case additional metastases of the 3rd ventricle. Although the morphological feature of these myxopapillary ependymomas was benign, the presented cases showed that the biological behavior of myxopapillary tumors might differ greatly and that these tumors present a serious operative and diagnostic challenge. Myxopapillary ependymomas occur most often in the lumbosacral region. Due to the anatomic complexity of the cauda equina, a complete resection can be technically challenging in this region. However, a gross total resection at the primary surgery is the most predictive factor for the outcome. PMID:18257471

Schittenhelm, J; Becker, R; Capper, D; Meyermann, R; Iglesias-Rozas, J R; Kaminsky, J; Mittelbronn, M

2008-01-01

31

Loss of Keratin 8 Phosphorylation Leads to Increased Tumor Progression and Correlates with Clinico-Pathological Parameters of OSCC Patients  

PubMed Central

Background Keratins are cytoplasmic intermediate filament proteins expressed in tissue specific and differentiation dependent manner. Keratins 8 and 18 (K8 and K18) are predominantly expressed in simple epithelial tissues and perform both mechanical and regulatory functions. Aberrant expression of K8 and K18 is associated with neoplastic progression, invasion and poor prognosis in human oral squamous cell carcinomas (OSCCs). K8 and K18 undergo several post-translational modifications including phosphorylation, which are known to regulate their functions in various cellular processes. Although, K8 and K18 phosphorylation is known to regulate cell cycle, cell growth and apoptosis, its significance in cell migration and/or neoplastic progression is largely unknown. In the present study we have investigated the role of K8 phosphorylation in cell migration and/or neoplastic progression in OSCC. Methodology and Principal Findings To understand the role of K8 phosphorylation in neoplastic progression of OSCC, shRNA-resistant K8 phospho-mutants of Ser73 and Ser431 were overexpressed in K8-knockdown human AW13516 cells (derived from SCC of tongue; generated previously). Wound healing assays and tumor growth in NOD-SCID mice were performed to analyze the cell motility and tumorigenicity respectively in overexpressed clones. The overexpressed K8 phospho-mutants clones showed significant increase in cell migration and tumorigenicity as compared with K8 wild type clones. Furthermore, loss of K8 Ser73 and Ser431 phosphorylation was also observed in human OSCC tissues analyzed by immunohistochemistry, where their dephosphorylation significantly correlated with size, lymph node metastasis and stage of the tumor. Conclusion and Significance Our results provide first evidence of a potential role of K8 phosphorylation in cell migration and/or tumorigenicity in OSCC. Moreover, correlation studies of K8 dephosphorylation with clinico-pathological parameters of OSCC patients also suggest its possible use in prognostication of human OSCC.

Alam, Hunain; Gangadaran, Prakash; Bhate, Amruta V.; Chaukar, Devendra A.; Sawant, Sharada S.; Tiwari, Richa; Bobade, Jyoti; Kannan, Sadhana; D'cruz, Anil K.; Kane, Shubhada; Vaidya, Milind M.

2011-01-01

32

Outcome of pulmonary embolism and clinico-radiological predictors of mortality: Experience from a university hospital in Saudi Arabia  

PubMed Central

OBJECTIVES: The objective of this study is to determine the outcome of pulmonary embolism (PE) and the clinico-radiological predictors of mortality in a university hospital setting. METHODS: A Prospective observational study conducted at King Khalid University Hospital, Riyadh Saudi Arabia between January 2009 and 2012. A total of 105 consecutive patients (49.9 ± 18.7 years) with PE diagnosed by computed tomography pulmonary angiography were followed until death or hospital discharge. RESULTS: Overall in hospital mortality rate was 8.6%, which is lower than other international reports. Two-thirds of patients developed PE during the hospitalization. The most common risk factors were surgery (35.2%), obesity (34.3%) and immobility (30.5%). The localization of the embolus was central in 32.4%, lobar in 19% and distal in 48.6%. A total of 26 patients (25%) had evidence of right ventricular strain and 14 (13.3%) were hypotensive. Multivariate analysis revealed that heart failure (Beta = ?0.53, P < 0.001), palpitation (Beta = ?0.24, P = 0.014) and high respiratory rate (Beta = ?0.211, P < 0.036) were significant predictors of mortality. There was no significant difference in the localization of the embolus or obstruction score between survivors and non-survivors. CONCLUSION: The outcome of PE is improving; however, it remains an important risk factor for mortality in hospitalized patients. Congestive heart failure, tachypnea and tachycardia at presentation were associated with higher mortality. These factors need to be considered for risk stratification and management decisions of PE patients. Radiological quantification of clot burden was not a predictor of death.

Al Otair, Hadil A. K.; Al-Boukai, Ahmad A.; Ibrahim, Gehan F.; Al Shaikh, Mashael K.; Mayet, Ahmed Y.; Al-Hajjaj, Mohamed S.

2014-01-01

33

Clinico-epidemiological profile of tobacco users attending a tobacco cessation clinic in a teaching hospital in Bangalore city  

PubMed Central

Background: Tobacco-attributable mortality in India is estimated to be at least 10%. Tobacco cessation is more likely to avert millions of deaths before 2050 than prevention of tobacco use initiation. Objective: To describe the clinico-epidemiological profile of attendees of a tobacco cessation clinic in a teaching hospital in Bangalore city. Materials and Methods: A descriptive study of 189 attendees seen over 2 years in the Tobacco Cessation Clinic of a tertiary-care teaching hospital in Bangalore, with information on socio demographic characteristics, tobacco-use details, nicotine dependence, family/medical history, past quit attempts, baseline stage-of-change, and treatment initiated. Results: Only 5% were ‘walk-in’ patients; 98% of attendees were smokers; 97% were males. The mean (±SD) age of attendees was 48.0 (±14.0) years. Most participants were married (88%), and predominantly urban (69%). About 62% had completed at least 8 years of schooling. Two-thirds of smokers reported high levels of nicotine dependence (Fagerström score >5/10). About 43% of patients had attempted quitting earlier. Four-fifths (79%) of tobacco-users reported a family member using tobacco. Commonly documented comorbidities included: Chronic respiratory disease (44%), hypertension (23%), diabetes (12%), tuberculosis (9%), myocardial infarction (2%), stroke (1%), sexual dysfunction (1%) and cancer (0.5%). About 52% reported concomitant alcohol use. At baseline, patients’ motivational stage was: Precontemplation (14%), contemplation (48%), preparation/action (37%) and maintenance (1%). Treatment modalities started were: Counseling alone (41%), nicotine replacement therapy alone (NRT) (34%), medication alone (13%), and NRT+medication (12%). Conclusions: This is the first study of the baseline profile of patients attending a tobacco cessation clinic located within a chest medicine department in India. Important determinants of outcome have been captured for follow-up and prospective documentation of outcomes.

D'Souza, George; Rekha, Dorothy P.; Sreedaran, Priya; Srinivasan, K.; Mony, Prem K.

2012-01-01

34

IGF-IR in patients with advanced colorectal cancer in correlation with certain clinico-morphological factors: Initial report  

PubMed Central

The insulin-like growth factor (IGF) system comprises two types of peptides (IGF-I and IGF-II), two types of receptors (IGF-IR and IGF-IIR) and six IGF-binding proteins (BP). This system is mainly responsible for the growth and division of cells in the body, regulation of the cell cycle and prevention of apoptosis. The expression of IGF-IR was assessed in the cells of resected primary colorectal tumours in 88 patients (age, 36-87 years; mean 64.78; males, 48 and females, 40) treated surgically at the Second Department of General and Gastroenterological Surgery, Medical University of Bialystok, Poland, in relation to various clinico-morphological factors. The post-operative material was analysed to find the histological type, location of lesions, lymph node involvement staging, distant metastases (pTNM classification), staging in Dukes’ classification and the histopathological differentiation grade. The expression of IGF-IR in colorectal cancer cells was assessed using an immunohistochemical method. The findings were subjected to statistical analysis (Chi-square test, multivariation test and Mann-Whitney U test). A positive IGF-IR expression (in at least 10% of cancer cells) was observed in 44 patients. The mean immunoreactive cell count for IGF-IR in all of the tumours studied was 30.79%. The current study showed no correlation of IGF-IR expression in colorectal cancer cells with characteristics such as age and gender of patients, tumour location, type, histological differentiation or histopathological advancement. Immunohistological determination of IGF-IR expression in advanced colorectal cancer cells revealed controversial scores. Evaluation should be confirmed by using other methods and enhanced to include adenomas and early colorectal cancers.

KUKLINSKI, ADAM; KAMOCKI, ZBIGNIEW; KODA, MARIUSZ; PIOTROWSKI, ZDZISLAW; SULKOWSKI, STANISLAW; LESNIEWICZ, RYSZARD; PAWLAK, KRYSTYNA; MYSLIWIEC, PIOTR; KEDRA, BOGUSLAW

2011-01-01

35

Clinico-pathological analysis of renal cell carcinoma demonstrates decreasing tumour grade over a 17-year period  

PubMed Central

Introduction: Renal cell carcinoma (RCC) represents about 3% of adult malignancies in Ireland. Worldwide there is a reported increasing incidence and recent studies report a stage migration towards smaller tumours. We assess the clinico-pathological features and survival of patients with RCC in a surgically treated cohort. Methods: A retrospective analysis of all nephrectomies carried out between 1995 and 2012 was carried out in an Irish tertiary referral university hospital. Data recorded included patient demographics, size of tumour, tumour-node-metastasis (TNM) classification, operative details and final pathology. The data were divided into 3 equal consecutive time periods for comparison purposes: Group 1 (1995–2000), Group 2 (2001–2006) and Group 3 (2007–2012). Survival data were verified with the National Cancer Registry of Ireland. Results: In total, 507 patients underwent nephrectomies in the study period. The median tumour size was 5.8 cm (range: 1.2–20 cm) and there was no statistical reduction in size observed over time (p = 0.477). A total of 142 (28%) RCCs were classified as pT1a, 111 (21.9%) were pT1b, 67 (13.2%) were pT2, 103 (20.3%) were pT3a, 75 (14.8%) were pT3b and 9 (1.8%) were pT4. There was no statistical T-stage migration observed (p = 0.213). There was a significant grade reduction over time (p = 0.017). There was significant differences noted in overall survival between the T-stages (p < 0.001), nuclear grades (p < 0.001) and histological subtypes (p = 0.022). Conclusion: There was a rising incidence in the number of nephrectomies over the study period. Despite previous reports, a stage migration was not evident; however, a grade reduction was apparent in this Irish surgical series. We can demonstrate that tumour stage, nuclear grade and histological subtype are significant prognosticators of relative survival in RCC.

Nason, Gregory J.; McGuire, Barry B.; Kelly, Michael E.; Murphy, Theodore M.; Looney, Aisling T.; Byrne, Damien P.; Mulvin, David W.; Galvin, David J.; Quinlan, David M.; Lennon, Gerald M.

2014-01-01

36

[Comparison of the results of clinico-epidemiological examination of retarded children-orphans and retarded children brought up in the family].  

PubMed

A group of mentally retarded children (n = 881) aged 8 to 14 years, identified as a result of a clinico-epidemiological screening, were examined. The results obtained were compared in two groups. Group 1 (n = 272 or 30.9%) included orphans and children who remained without their parents' care since infancy and group II (n = 609 or 69.1%) included children brought up in complete or incomplete families. The differences were established in the degree of mental retardation, in its complication by additional psychopathological symptomatology, in the share of some complicating syndromes and the time of their origin, in the times of the diagnosis establishment and sending to specialized institutions, in the quality and timeliness of the assistance rendered, and in some other indicators. The importance of the problem of psychic deprivation in mental retardation is emphasized. PMID:1694380

Kryzhanovskaia, I L

1990-01-01

37

MICrocephaly, disproportionate pontine and cerebellar hypoplasia syndrome: A clinico-radiologic phenotype linked to calcium/calmodulin-dependent serine protein kinase gene mutation.  

PubMed

MICrocephaly, disproportionate pontine and cerebellar hypoplasia (MICPCH) syndrome, a rare X-linked disorder, generally seen in girls, is characterized by neurodevelopmental delay, microcephaly, and disproportionate pontine and cerebellar hypoplasia. It is caused by inactivating calcium/calmodulin-dependent serine protein kinase (CASK) gene mutations. We report a 2-year-old girl with severe neurodevelopmental delay, microcephaly, minimal pontine hypoplasia, cerebellar hypoplasia, and normal looking corpus callosum, with whom the conventional cytogenetic studies turned out to be normal, and an array-comparative genomic hybridization (a-CGH) analysis showed CASK gene duplication at Xp11.4. Our case highlights the importance of using clinico-radiologic phenotype to guide genetic investigation and it also confirms the role of a-CGH analysis in establishing the genetic diagnosis of MICPCH syndrome, when conventional cytogenetic studies are inconclusive. PMID:23901204

Saleem, Rashid; Setty, Gururaj; Hussain, Nahin

2013-01-01

38

The clinico-pathological spectrum of Focal Cortical Dysplasias: a consensus classification proposed by an ad hoc Task Force of the ILAE Diagnostic Methods Commission  

PubMed Central

Focal cortical dysplasias (FCDs) are localized regions of malformed cerebral cortex and are very frequently associated with epilepsy in both children and adults. A broad spectrum of histopathology has been included in the diagnosis of FCD. Characteristic findings include aberrant radial or tangential lamination of the neocortex (FCD Type I) and cytological abnormalities (FCD Type II). An ILAE task force has re-evaluated available data and proposes a clinico-pathologic classification system of FCDs. The major change since a prior classification represents the introduction of FCD Type III, which occurs in combination with Hippocampal Sclerosis (FCD Type IIIa), or with epilepsy-associated tumors (FCD Type IIIb). FCD Type IIIc is found adjacent to vascular malformations, whereas FCD Type IIId can be diagnosed in association with epileptogenic lesions acquired in early life (i.e., traumatic injury, ischemic injury or encephalitis). Hence, FCD Type I will now refer to isolated lesions, which present either as radial (FCD Type Ia) or tangential (FCD Type Ib) dyslamination of the neocortex, microscopically identified in one or multiple lobes. FCD Type II is an isolated lesion characterized by cortical dyslamination and dysmorphic neurons without (Type IIa) or with balloon cells (Type IIb). Architectural abnormalities adjacent to or within gross malformations of cortical development are frequently observed and not distinguished as a specific FCD variant. This three-tiered classification system will help to better characterize specific clinico-pathological entities and is an important basis to further explore imaging, electro-clinical features, and postsurgical seizure control as well as underlying molecular pathomechanisms.

Blumcke, Ingmar; Thom, Maria; Aronica, Eleonora; Armstrong, Dawna D.; Vinters, Harry V.; Palmini, Andre; Jacques, Thomas S; Avanzini, Giuliano; Barkovich, A. James; Battaglia, Giorgio; Becker, Albert; Cepeda, Carlos; Cendes, Fernando; Colombo, Nadia; Crino, Peter; Cross, J. Helen; Delalande, Olivier; Dubeau, Francois; Duncan, John; Guerrini, Renzo; Kahane, Philippe; Mathern, Gary; Najm, Imad; Ozkara, Cigdem; Raybaud, Charles; Represa, Alfonso; Roper, Steven N.; Salamon, Noriko; Schulze-Bonhage, Andreas; Tassi, Laura; Vezzani, Annamaria; Spreafico, Roberto

2010-01-01

39

Clinico-Pathological and Prognostic Significance of p53, Bcl-2 and Her-2/neu Protein Markers in Colorectal Cancer Using Tissue Microarray.  

PubMed

Background: The prognostic role of her-2/neu has been established in breast cancer but remains controversial in colorectal cancer (CRC). Widespread genetic mutations in colorectal carcinogenesis exist on chromosome 17. Her- 2/neu gene and the tumor suppressor gene p53 are both located on this chromosome. Bcl-2 protein prolongs survival of a variety of cells by blocking apoptosis. The aim of this study is to evaluate the relationship between the overexpression of p53, bcl-2 and her-2/neu protein markers and the clinico-pathologic characteristics of CRC, and their influence on survival rates. Patients and Methods: One hundred and four cases of CRC had paraffin blocks with representative tissue, and sufficient follow-up data. They were arrayed and evaluated for protein marker expression using tissue microarray (TMA). Results: Ten (9.6%), 35 (33.7%) and 27 (26%) of the patients were her-2/neu, p53 and bcl-2 positive, respectively. None of the examined clinico-pathologic factors had a significant relation with her-2/neu overexpression. Patients with +ve bcl-2 had a significantly higher mean age (52.4-/+13.3years) compared to 45.4-/+14.4 years for bcl-2 negative patients, p=0.03. Positive p53 was overexpressed in 20/44 (45.5%), 6/17 (35%), 9/43 (21%) cases of the colon, recto-sigmoid, and rectal sites, respectively, p=0.05. For the whole population, p53 overexpression had a significantly lower disease-free survival (DFS). For patients with Dukes' stage B, overexpression of p53 protein had a significant reduced overall survival (OS) p=0.04, metastasis free survival (MFS) p=0.004, and DFS p=0.01 rates. Expression of bcl-2 had a significantly better MFS p=0.001, while her-2/neu overexpression worsened the OS rate significantly, p=0.04. Conclusion: This study recommends the application of TMA technique for its economic importance and reliable quick throughput. The results from this study also suggest that overexpression of p53, bcl-2, and her-2/neu protein markers appear to be useful in selecting a group of CRC patients with a worse prognosis and constitute potential candidates for adjuvant therapy. Key Words: Her-2/neu , p53 , Bcl-2 , Colorectal cancer , Tissue microarray , Prognostic factors. PMID:18839030

Ismail, Hoda M; El-Baradie, Manal; Moneer, Manar; Khorshid, Ola; Touny, Ahmed

2007-03-01

40

Nam Con Son Basin  

SciTech Connect

The Nam Con Son basin is the largest oil and gas bearing basin in Vietnam, and has a number of producing fields. The history of studies in the basin can be divided into four periods: Pre-1975, 1976-1980, 1981-1989, and 1990-present. A number of oil companies have carried out geological and geophysical studies and conducted drilling activities in the basin. These include ONGC, Enterprise Oil, BP, Shell, Petro-Canada, IPL, Lasmo, etc. Pre-Tertiary formations comprise quartz diorites, granodiorites, and metamorphic rocks of Mesozoic age. Cenozoic rocks include those of the Cau Formation (Oligocene and older), Dua Formation (lower Miocene), Thong-Mang Cau Formation (middle Miocene), Nam Con Son Formation (upper Miocene) and Bien Dong Formation (Pliocene-Quaternary). The basement is composed of pre-Cenozoic formations. Three fault systems are evident in the basin: north-south fault system, northeast-southwest fault system, and east-west fault system. Four tectonic zones can also be distinguished: western differentiated zone, northern differentiated zone, Dua-Natuna high zone, and eastern trough zone.

Tin, N.T.; Ty, N.D.; Hung, L.T.

1994-07-01

41

Evaluation of serum levels of sCD30L ligand in patients with ovarian cancer in terms of selected clinico-pathological factors  

PubMed Central

Aim of the study The CD30L ligand is a membrane-associated glycoprotein expressed by activated CD4+Th cells, macrophages, dendritic cells, and B lymphocytes. It binds to the CD30 receptor carried on activated and helper Th cells, inducing the immune response and apoptosis. The aim of this retrospective study was to determine the level of sCD30L in the serum of patients at diagnosis of ovarian cancer and at relapse and to assess the potential association of this ligand with selected clinico-pathologic factors. Material and methods We studied 69 patients with ovarian cancer allocated to two groups: A – ovarian cancer at diagnosis, B – relapse of ovarian cancer and active growth of the tumor. Results We found high levels of sCD30L in ovarian cancer patients. Levels at relapse (21.48 ng/ml) were significantly higher than at diagnosis (11.81 ng/ml). Poor response to first-line chemotherapy was accompanied by higher levels of sCD30L and by several other findings: resistance to platinum analogs was common, neoadjuvant chemotherapy was needed, relapse and death during two-year follow-up were frequent. Conclusions Our present study might initially suggest that elevated concentration of sCD30L can be an important finding prognosticating a poor prognosis and is associated with platinum resistant and refractory cases of ovarian cancer. However, studies are needed on larger groups of patients.

Rzepka-Gorska, Izabella

2013-01-01

42

Mixed exocrine-neuroendocrine carcinoma of the nasal cavity: clinico-pathologic and molecular study of a case and review of the literature.  

PubMed

Sinonasal intestinal-type adenocarcinomas (ITACs) are rare neoplasms histologically resembling intestinal adenocarcinomas. Although a neuroendocrine differentiation in ITACs has been described, true mixed exocrine-neuroendocrine carcinomas, neoplasms in which each component represents at least 30 % of the lesion, are extremely rare and their molecular alterations are largely unknown. We describe herein the clinico-pathologic features, the methylation profile, chromosomal gains and losses, and mutation analysis of KRAS, BRAF and p53 in a nasal mixed exocrine-neuroendocrine carcinoma resected in a 79-year-old man. The tumor was composed of an ITAC and a poorly differentiated neuroendocrine carcinoma. Both exocrine and neuroendocrine components were CK8, CK20, CDX2 and p53 positive, and CK7 and TTF1 negative. The neuroendocrine component also showed immunoreactivity for chromogranin A, synaptophysin, serotonin and glicentin. Gains and losses were found at following chromosome regions: 17p13 (TP53), 14q24 (MLH3), 19q13 (KLK3), 5q21 (APC), 7q21 (CDK6), 9q34 (DAPK1), 12p13 (TNFRSF 1A, CDKN1B), 13q12 (BRCA2), 17p13.3 (HIC1), 18q21 (BCL2), and 22q12 (TIMP3). Aberrant methylation was detected only in the neuroendocrine component and involved APC and DAPK1 genes. No mutation of KRAS (exons 2-4), BRAF (exon 15), and p53 (exons 4-10) was found in both components. The results suggest a monoclonal origin of the tumor from a pluripotent cell undergoing a biphenotypic differentiation and that the neuroendocrine differentiation may be from an exocrine to an endocrine pathway. We have also reviewed the literature on sinonasal mixed exocrine-neuroendocrine carcinomas to give to the reader a comprehensive overview of these very rare tumor types. PMID:22740238

La Rosa, Stefano; Furlan, Daniela; Franzi, Francesca; Battaglia, Paolo; Frattini, Milo; Zanellato, Elena; Marando, Alessandro; Sahnane, Nora; Turri-Zanoni, Mario; Castelnuovo, Paolo; Capella, Carlo

2013-03-01

43

Surgical treatment of lateral clavicle fractures associated with complete coracoclavicular ligament disruption: Clinico-radiological outcomes of acromioclavicular joint sparing and spanning implants  

PubMed Central

Purpose: Distal clavicle fracture associated with complete coracoclavicular ligament disruption represents an unstable injury, and osteosynthesis is recommended. This study was performed (1) to retrospectively analyse the clinico-radiological outcomes of two internal fixation techniques, and (2) to identify and analyse radiographic fracture patterns of fracture that are associated with this injury. Materials and Methods: A total of 15 patients underwent osteosynthesis with either (1) acromioclavicular joint-spanning implants (Group 1, Hook plate device, n = 10) or (2) joint-sparing implants (Group 2, distal radius plate, n = 5); these were reviewed at a mean period of 26.1 months (12 to 40 months). Clinical outcomes were measured using Constant Score (CS), Simple Shoulder Test (SST), and Walch ACJ score (WS). Radiographs and ultrasonography were used to assess the glenohumeral and acromioclavicular joints, and the subacromial space. Preoperative radiographs were analyzed for assessment of fracture lines to identify radiographic patterns. Statistical analysis of the data was performed to determine any significant differences between the two groups. Results: The overall clinical outcome was satisfactory (CS 80.8, SST 11.3, WS 17.6) and a high union rate (93.3%) was observed. Radiographic complications (acromioclavicular degeneration and subluxation, hook migration, abnormal ossification) did not negatively influence the final clinical outcomes. Four distinct radiographic fracture patterns were observed. A statistically significant difference ( P < 0.05) was observed in the reoperation rates between the two groups. Conclusions: Internal fixation of this fracture pattern is associated with a high union rate and favorable clinical outcomes with both techniques. A combination of distal radius plate and ligament reconstruction device resulted in stable fixation and significantly lower reoperation rates, and should be used when fracture geometry permits (Types 1 and 2). Design: Retrospective review of a consecutive clinical case series. Setting: Level 1 academic trauma service, Public Hospital.

Bhatia, Deepak N.; Page, Richard S.

2012-01-01

44

Hamartomas, teratomas and teratocarcinosarcomas of the head and neck: Report of 3 new cases with clinico-pathologic correlation, cytogenetic analysis, and review of the literature  

PubMed Central

Background Germ-cell tumors (GCT) are a histologically and biologically diverse group of neoplasms which primarily occur in the gonads but also develop at different extragonadal sites in the midline of the body. The head and neck region including the upper respiratory tract is a very rare location for such tumors in both children and adults, which can cause diagnostic and therapeutic difficulties. Methods We describe here two new cases of multilineage tumors including sinonasal teratocarcinosarcoma [SNTCS], and congenital oronasopharyngeal teratoma (epignathus) and compare their features with those of a new case of a rare salivary gland anlage tumor [SGAT], an entity for which the pathogenesis is unclear (i.e. hamartoma versus neoplasm). We correlate their presenting clinico-pathological features and compare histologic and cytogenetic features in an attempt to elucidate their pathogenesis and biologic potentials. Results and discussion Cytogenetic analysis revealed chromosomal abnormalities only in the case of SNTCS that showed trisomy 12 and 1p deletion. Both cytogenetic abnormalities are characteristically present in malignant germ cell tumors providing for the first time evidence that this rare tumor type indeed might represent a variant of a germ cell neoplasm. The SGAT and epignathus carried no such cytogenetic abnormalities, in keeping with their limited and benign biologic potential. Conclusion The comparison of these three cases should serve to emphasize the diversity of multilineage tumors (hamartomas and GCT) of the upper respiratory tract in regards to their biology, age of presentation and clinical outcomes. Malignant tumors of germ cell origins are more likely to affect adults with insidious symptom development, while benign tumors can nevertheless cause dramatic clinical symptoms which, under certain circumstances, can be fatal.

Vranic, Semir; Caughron, Samuel K; Djuricic, Slavisa; Bilalovic, Nurija; Zaman, Sadiq; Suljevic, Ismet; Lydiatt, William M; Emanuel, Jane; Gatalica, Zoran

2008-01-01

45

New proposed clinico-radiologic and molecular criteria in hypochondroplasia: FGFR 3 gene mutations are not the only cause of hypochondroplasia.  

PubMed

We applied a comprehensive set of clinical and radiological criteria for the diagnosis of hypochondroplasia (HCH) in 160 patients with short stature 58 of whom were diagnosed to have HCH. Taking into account the genotypic and phenotypic variations in HCH, we conducted a study with these 58 patients and tested them for mutations in the fibroblast growth factor receptor 3 (FGFR3) and the short stature homeobox (SHOX) gene. We characterized the phenotypes by clinical and radiologic findings. In the patients with HCH, 19 were included in Group I (FGFR3 mutations-mutations of definite significance), and 39 were in Group II (6 SHOX mutations and 33 negative for disease-causing FGFR3 mutations). The clinical findings were similar in two groups regardless of the presence or absence of mutations. More than 95% of the patients had mesomelic proportions. In Group I, the radiological findings of mesomelia of upper and lower limbs and, L1/L4 ratio in anterior-posterior and lateral view were more typical than in Group II. This study proposes comprehensive clinico-radiological criteria for the diagnosis of HCH, which would help in detecting the true incidence of this underdiagnosed condition. The presence of SHOX mutations suggest genotypic-phenotypic overlap between HCH and Leri-Weill dyschondrosteosis, though further investigation is needed to effectively elucidate the importance of these mutations. Also, the 56.9% of HCH patients with negative mutations for FGFR3 suggests that there are other undiscovered gene mutations associated with this phenotypic entity. PMID:22903874

Song, Sang-Heon; Balce, Gracia Cielo Estrera; Agashe, Mandar Vikas; Lee, Hanna; Hong, Suk-Joo; Park, Young-Eun; Kim, Sang-Gyun; Song, Hae-Ryong

2012-10-01

46

Clinico-Pathological Features and Prognosis of Invasive Micropapillary Carcinoma Compared to Invasive Ductal Carcinoma: A Population-Based Study from China  

PubMed Central

Background Invasive micropapillary carcinoma (IMPC) of the breast is a rare subtype of breast cancer that is associated with a high incidence of regional lymph node metastases and a poor clinical outcome. However, the clinico-pathological features and prognostic factors of IMPC are not well understood. Patients and Methods A total of 188 IMPC cases and 1,289 invasive ductal carcinoma (IDC) cases were included. The clinical features, breast cancer-specific survival (BCSS) and recurrence/metastasis-free survival (RFS) of the patients were compared between these two groups. Results The IMPC patients exhibited more features of aggressive carcinoma than the IDC patients, including larger tumor size, higher tumor stage, a greater proportion of nodal involvement and an increased incidence of lymphovascular invasion. Patients with IMPC had lower 5-year BCSS and RFS rates (75.9% and 67.1%, respectively) than patients with IDC (89.5% and 84.5%, respectively). Compared to IDC patients, the patients with IMPC had a significantly higher percentage of stage III breast cancer (51.3% versus 21.7%). In a stage-matched Kaplan-Meier analysis, the patients with stage III IMPC had lower 5-year BCSS and RFS rates than patients with stage III IDC (BCSS, P?=?0.004; RFS, P?=?0.034). A multivariate analysis revealed that TNM stage was an independent prognostic factor for patients with IMPC. The proportion of cancers with a luminal-like subtype was significantly higher in IMPC than in IDC (P<0.001). However, after matching by molecular subtype, the patients with IMPC had significantly worse clinical outcomes than patients with IDC. Conclusions In Chinese women, IMPCs displayed more aggressive behaviors than IDCs, resulting in poorer clinical outcomes for patients with IMPC, regardless of a favorable molecular subtype. Our findings illustrate that the poorer survival of patients with IMPC might be due to an increased incidence and aggressiveness of tumors in TNM stage III.

Zhou, Jian; Zhang, Qiang; Shao, Zhi-Ming

2014-01-01

47

Automated Quantitative Analysis of p53, Cyclin D1, Ki67 and pERK Expression in Breast Carcinoma Does Not Differ from Expert Pathologist Scoring and Correlates with Clinico-Pathological Characteristics  

PubMed Central

There is critical need for improved biomarker assessment platforms which integrate traditional pathological parameters (TNM stage, grade and ER/PR/HER2 status) with molecular profiling, to better define prognostic subgroups or systemic treatment response. One roadblock is the lack of semi-quantitative methods which reliably measure biomarker expression. Our study assesses reliability of automated immunohistochemistry (IHC) scoring compared to manual scoring of five selected biomarkers in a tissue microarray (TMA) of 63 human breast cancer cases, and correlates these markers with clinico-pathological data. TMA slides were scanned into an Ariol Imaging System, and histologic (H) scores (% positive tumor area x staining intensity 0–3) were calculated using trained algorithms. H scores for all five biomarkers concurred with pathologists’ scores, based on Pearson correlation coefficients (0.80–0.90) for continuous data and Kappa statistics (0.55–0.92) for positive vs. negative stain. Using continuous data, significant association of pERK expression with absence of LVI (p = 0.005) and lymph node negativity (p = 0.002) was observed. p53 over-expression, characteristic of dysfunctional p53 in cancer, and Ki67 were associated with high grade (p = 0.032 and 0.0007, respectively). Cyclin D1 correlated inversely with ER/PR/HER2-ve (triple negative) tumors (p = 0.0002). Thus automated quantitation of immunostaining concurs with pathologists’ scoring, and provides meaningful associations with clinico-pathological data.

Cass, Jamaica D.; Varma, Sonal; Day, Andrew G.; Sangrar, Waheed; Rajput, Ashish B.; Raptis, Leda H.; Squire, Jeremy; Madarnas, Yolanda; SenGupta, Sandip K.; Elliott, Bruce E.

2012-01-01

48

Recent outbreak of cutaneous anthrax in Bangladesh: clinico-demographic profile and treatment outcome of cases attended at Rajshahi Medical College Hospital  

PubMed Central

Background Human cutaneous anthrax results from skin exposure to B. anthracis, primarily due to occupational exposure. Bangladesh has experienced a number of outbreaks of cutaneous anthrax in recent years. The last episode occurred from April to August, 2011 and created mass havoc due to its dreadful clinical outcome and socio-cultural consequences. We report here the clinico-demographic profile and treatment outcome of 15 cutaneous anthrax cases attended at the Dermatology Outpatient Department of Rajshahi Medical College Hospital, Bangladesh between April and August, 2011 with an aim to create awareness for early case detection and management. Findings Anthrax was suspected primarily based on cutaneous manifestations of typical non-tender ulcer with black eschar, with or without oedema, and a history of butchering, or dressing/washing of cattle/goat or their meat. Diagnosis was established by demonstration of large gram-positive rods, typically resembling B. anthracis under light microscope where possible and also by ascertaining therapeutic success. The mean age of cases was 21.4?years (ranging from 3 to 46?years), 7 (46.7%) being males and 8 (53.3%) females. The majority of cases were from lower middle socioeconomic status. Types of exposures included butchering (20%), contact with raw meat (46.7%), and live animals (33.3%). Malignant pustule was present in upper extremity, both extremities, face, and trunk at frequencies of 11 (73.3%), 2 (13.3%), 1 (6.7%) and 1 (6.7%) respectively. Eight (53.3%) patients presented with fever, 7 (46.7%) had localized oedema and 5 (33.3%) had regional lymphadenopathy. Anthrax was confirmed in 13 (86.7%) cases by demonstration of gram-positive rods. All cases were cured with 2?months oral ciprofloxacin combined with flucoxacillin for 2?weeks. Conclusions We present the findings from this series of cases to reinforce the criteria for clinical diagnosis and to urge prompt therapeutic measures to treat cutaneous anthrax successfully to eliminate the unnecessary panic of anthrax.

2012-01-01

49

NOGLIC®: studio clinico in aperto per valutare l'efficacia e la sicurezza del prodotto nella riduzione della glicemia e dell'emoglobina glicosilata  

Microsoft Academic Search

a Sindrome Metabolica e il Diabete Mellito sono condizioni cliniche che comportano un aumentato rischio per la vascu- lopatia aterosclerotica e in particolare per quella coronarica. La terapia attuale comprende misure igienico dietetiche e farmaci, ma nella nostra pratica clinica riscontriamo che non tutti i pazienti riescono a controllare i sintomi con la sola correzione dello stile di vita, ma

DI LIVIA PISCIOTTA; CLAUDIA BORRINI; ROBERTO CORIO; MARINA BOSCARINI

50

¡Truco Con Agua!  

NSDL National Science Digital Library

En esta actividad los aprendices aprenderán un truco de magia donde la magia es la presión del aire. Los participantes tomarán un vaso de agua medio lleno y lo taparán con un pedazo de plástico o cartón. Sosteniendo la tarjeta contra el vaso, lo voltearán boca abajo y cuando quiten la mano debajo del vaso, ¡abracadabra! no se caerá el agua. En la tira cómica, Mateo explica a los aprendices que la presión que hace el aire en todas las direcciones es la que sostiene la tarjeta.

Science, Lawrence H.

2009-01-01

51

Un Juego de Gravedad con Reconocimiento de Voz para Niños con Problemas de Lenguaje  

Microsoft Academic Search

En este trabajo presentamos un juego electrónico (Gravedad) con reconocimiento de voz para estimular a niños en edad escolar con problemas del lenguaje dislalia. Se presenta las características y elementos del juego electrónico, así como su integración con el sistema de reconocimiento de voz y los resultados de unas pruebas de usabilidad. El juego de Gravedad se desarrolló utilizando el

Carlos Miranda-Palm; Reyna Camal-U; José Cen-Magaña; Cinhtia Gonzalez-Segura; Sergio Gonzalez-Segura; Michel García; Lizzie Narvaez-Díaz

52

Opciones de cirugía para mujeres con CDIS o con cáncer de seno  

Cancer.gov

Folleto para mujeres con CDIS o con cáncer de seno que pueden operarse con cirugía. Esta guía explica los tipos de cirugía de seno, como la operación para preservar el seno y la mastectomía, y ayuda a las mujeres a decidir cuál cirugía es la mejor opción para ellas.

53

Opciones de cirugía para mujeres con CDIS o con cáncer de seno  

Cancer.gov

E-book para mujeres con CDIS o con cáncer de seno que pueden operarse con cirugía. Esta guía explica los tipos de cirugía de seno, como la operación para preservar el seno y la mastectomía, y ayuda a las mujeres a decidir cuál cirugía es la mejor opción para ellas.

54

Genetic polymorphism of CON 1 and CON 2 salivary proteins detected by immunologic and concanavalin a reactions on nitrocellulose with linkage of CON 1 and CON 2 genes to the SPC (salivary protein gene complex)  

Microsoft Academic Search

Two new genetic protein polymorphisms (CON 1 and CON 2) were identified in parotid saliva. Genetic polymorphisms of salivary CON 1 (concanavalin A) and CON 2 proteins are determined by autosomal inheritance of one expressed (dominant) and one unexpressed (recessive) allele for each gene. Autosomal inheritance is supported by studies in 26 families including 105 children for CON 1 and

Edwin A. Azen; Pao-Lo Yu

1984-01-01

55

The Pros & Cons of Environmental Debates.  

ERIC Educational Resources Information Center

The preparation and format of debates that deal with environmental issues are presented. The educational pros and cons of such debates are discussed. A list of 30 suggested environmental debate topics and a reproducible debate evaluation form are provided. (KR)

Zipko, Stephen J.

1991-01-01

56

Capire la volatilità con il modello binomiale  

Microsoft Academic Search

Questo lavoro si propone di illustrare i concetti basilari dell'arbitrage pricing degli strumenti finanziari derivati mediante semplici modelli a tempo discreto che non richiedono nozioni di calcolo differenziale. In particolare si analizzano le proprietà statistiche dei prezzi e dei ritorni finanziari (valore atteso, varianza, deviazione standard) con riferimento alle distribuzioni \\

Luca Erzegovesi

1999-01-01

57

InterCon Travel Health Case Study  

Microsoft Academic Search

InterCon provides services to health insurers of foreign tourists who travel to the United States and Canada. After experiencing high growth, the company confronts several operational challenges. As a responsive measure, management considers developing an IT system. The system must go through the formal capital investment evaluation process, which requires estimation of costs and benefits and uses the NPV method.

Michael A. Goldstein

2007-01-01

58

InterCon Travel Health: Case B  

ERIC Educational Resources Information Center

InterCon provides services to health insurers of foreign tourists who travel to the United States and Canada. Management wants to implement a new information system that will deal with several operational problems, but it is having difficulty securing the capital resources to fund the system's development. After an initial failure, the chief…

Truman, Gregory E.; Pachamanova, Dessislava A.; Goldstein, Michael A.

2010-01-01

59

Google Scholar: the pros and the cons  

Microsoft Academic Search

Purpose – To identify the pros and the cons of Google Scholar. Design\\/methodology\\/approach – Chronicles the recent history of the Google Scholar search engine from its inception in November 2004 and critiques it with regard to its merits and demerits. Findings – Feels that there are massive content omissions presently but that, with future changes in its structure, Google Scholar

Péter Jacsó

2005-01-01

60

Aspectos relacionados con la sexualidad y la reproducción (PDQ®)  

Cancer.gov

Resumen de información revisada por expertos acerca de los factores que pueden afectar el funcionamiento sexual de las personas con cáncer. Se discuten además temas sobre la fecundidad relacionados con el tratamiento del cáncer.

61

Aspectos relacionados con la sexualidad y la reproducción (PDQ®)  

Cancer.gov

Resumen de información revisada por expertos acerca de los factores que podrían afectar el funcionamiento sexual de las personas con cáncer. Se discuten además temás sobre la fertilidad relacionados con el tratamiento del cáncer.

62

Experimental and Computational Studies of Carbonyl Diazide (CON6) as a Precursor to Diazirinone (CON2)  

NASA Astrophysics Data System (ADS)

Intrigued by the reported 2005 synthesis of diazirinone (1), we carried out further experimental and theoretical studies aimed at the detailed matrix-isolation and millimeter-wave spectroscopic characterizations of 1. Diazirinone (1) is a peculiar isoconjugate of two very stable molecules and may be of astrochemical interest. Unfortunately, the original reported methods of diazirinone (1) generation did not yield this species, rather its decomposition products. Inspired by a more recent gas phase pyrolysis of CON6 (2) to yield CON2 (1), we proposed a new method of generating CON6 (2) in solution as a precursor of diazirinone (1). This new synthesis may allow us to generate larger quantities of both CON6 and CON2 for investigation by millimeter-wave spectroscopy. We are able to safely generate carbonyl diazide (2) in sufficient yield from the reaction of triphosgene (3) and tetrabutylammonium azide in diethyl ether. This has allowed us to obtain both matrix-isolation and gas phase IR spectra of carbonyl diazide (2). After purification, it has a gas-phase lifetime that allows samples to be useable for up to several weeks. However, it is a shock-sensitive material that must be handled with care to prevent violent decomposition. In order to provide better mechanistic insight into the decomposition of carbonyl diazide (2) to diazirinone (1), we have engaged in a DFT and ab initio computational study. We have found a pathway between the two species via the triplet acylnitrene, CON4, and an oxaziridine CON2 species, but not at sufficiently low energies to allow for the trapping and detection of diazirinone (1). Preliminary millimeter-wave spectra have been obtained from several synthesized and purified samples of CON6 (2). However, the assignment of the spectra lines has been unexpectedly problematic. We have placed several CON6 (2) samples, confirmed by IR spectroscopy at the time of sample loading, into our instrument and obtained two different sets of rotational lines. This rotational puzzle will be investigated further with a significantly upgraded millimeter-wave spectrometer.

Esselman, Brian J.; Amberger, Brent K.; Nolan, Alex M.; Woods, R. Claude; McMahon, R. J.

2011-10-01

63

Energy Star program benefits Con Edison  

SciTech Connect

Impressed with savings in energy costs achieved after upgrading the lighting and air conditioning systems at its Manhattan headquarters, Home Box Office (HBO) wanted to do more, James Flock, vice president for computer and office systems, contacted Con Edison Co. of New York in March 1991 to determine what the company could do to save money by reducing energy consumed by personal computers. Arthur Kressner, Con Edison Research and Development manager contacted industry organizations and manufacturers for advice, but was told only to shut off computers at night and on weekends. Kressner arranged a series of meetings with IBM and the Electric Power Research Institute (EPRI) to discuss the issue, then approached the U.S. Environmental Protection Agency (EPA), which was designing a program to promote the introduction and use of energy-efficient office equipment. In 1992, the EPA announced the Energy Star program for PCs, enabling manufacturers to display the Energy Star logo on machines meeting program criteria, including the ability to enter a sleep mode in which neither the computer nor monitor consume more than 30 W or electricity. Industry experts estimate national energy consumption by office equipment could double by the year 2000, but Energy Star equipment is expected to improve efficiency and help maintain electric loads.

NONE

1995-05-01

64

Aggressive periodontitis: A clinico-hematological appraisal  

PubMed Central

Background: Human leukocyte antigens (HLA) have been considered a candidate of genetic risk markers for aggressive periodontitis (AP). AP has also been associated with polymorphonuclear leukocyte (PMN) dysfunction. The role of monocyte subsets in AP has also not been completely explored. Therefore, the present study was undertaken to assess in, AP subjects, the possible association between defective PMN adhesion and ?2-integrin expression; defective neutrophil migration and actin polymerization level; the expression of ABO blood group and HLA antigen; and the percentage of CD14+ CD16+ monocytes and CD45RA monocytes. All these parameters have been compared with the subjects of chronic periodontitis (CP) and healthy controls. Materials and Methods: A total of 45 subjects of the age group 20-50 years, free from any known systemic disease, were divided into three groups – Group I - periodontally healthy control (n = 15), Group II - CP (n = 15) and Group III - AP (n = 15). Peripheral blood samples were collected. ABO grouping and HLA typing were performed. ?2-integrin expression, actin polymerization level and percentage of CD14+ CD16+ monocytes and CD45RA monocytes were estimated by fluorescence-activated cell sorter analysis. Results: Most of the subjects of AP belonged to the blood group AB, and an increased frequency of HLA-A30, CW1 and DR1 (P < 0.1) and B44 and DQ2 (P < 0.05) were also observed in this group. In the AP group, both average values (?2-integrin and actin level) were significantly less than those of normal subjects (P < 0.001). The mean percentage of CD14+ CD16+ monocytes was found to be maximum in CP, followed by AP, and then in healthy subjects, while the mean percentage of CD45RA was maximum in AP, followed by CP, and then in healthy subjects. Conclusions: With the present state of knowledge from this study, a definite association of ABO blood groups and HLA phenotypes with periodontal diseases is yet to be established. Leukocytic functional defects were found in AP subjects. A statistically significant percentage of CD14+ CD16+ and CD45RA monocytes were found in AP subjects as compared with the normal control and CP groups.

Kundu, Debabrata; Bandyopadhyay, Prasanta; Nair, Vineet; Chowdhury, Mona; Mukherjee, Saswati; Nayek, Moumita

2014-01-01

65

Clinico-Histologic Conferences: Histology and Disease  

ERIC Educational Resources Information Center

Providing a context for learning information and requiring learners to teach specific content has been demonstrated to enhance knowledge retention. To enhance students' appreciation of the role of science and specifically histology in clinical reasoning, disease diagnosis, and treatment, a new teaching format was created to provide clinical…

Shaw, Phyllis A.; Friedman, Erica S.

2012-01-01

66

[Ewing's sarcoma. New clinico-pathological aspects].  

PubMed

Ewing's sarcoma is a rare, but highly malignant bone tumor. During the years 1966-1983 we diagnosed and treated this tumor in 84 patients. Diagnosis of the tumor in an early stage is a prerequisite for successful therapy. Clinical and radiological findings contribute to the diagnosis, but histologic confirmation is indispensible. In addition to histomorphology we regard electron microscopy and the demonstration of glycogen as essential for the final diagnosis. The differential diagnosis includes haematogeneous osteomyelitis, malignant lymphoma, metastases from neuroblastomas, rhabdomyosarcoma and some benign bone tumors. New observations concerning the histogenesis of Ewing's sarcoma are discussed. The introduction of chemotherapy as part of a multimodality approach to treatment has substantially improved the prognosis in comparison to the previous results with surgery and radiation therapy. The role of surgery and radiation independently and in combination is discussed. We propose an approach to treatment based on our experience which involves surgical removal of the primary tumor after preoperative chemotherapy. The overall survival rate among our 84 patients was 40%. Among those who were diagnosed early and treated according to the recommended protocol 54% are alive. PMID:3788306

Matejovsky, Z; Povysil, C

1986-01-01

67

Clinico-Hematological Study of Acutemyeloid Leukemias  

PubMed Central

Context: Acute Myeloid leukemia has been of special interest to innumerable workers in the field of cancer research since the blood and haematopoietic tissue can be easily and repeatedly sampled. Aim: To know the relative incidence of Acute myeloid leukemia among the patients referred for complete haemogram at the Department of Pathology, JJMMC, Davangere, India.To study the clinical manifestations and their correlation with various types of acute myeloid leukemia.To study the haematological profiles in acute myeloid leukemia. Settings and Design: This was a hospital based study conducted at haematology unit, Department of Pathology, JJM Medical College, Davangere, India. Materials and Method: The present study was done during the period of June 2006 to May 2008 at haematology unit department of Pathology, JJM Medical College, Davangere, India. Cases from Chigateri General Hospital, Bapuji Hospital and other private hospitals situated in and around Davangere were included for the study. The case selection was based on the clinical features and supported by laboratory evidence. Bone marrow aspiration was subsequently carried out after obtaining written consent from the patient or the guardian. Statistics: The results were expressed in percentage. Results and Conclusion: A total of 1039 patients who were referred to the Department of Haematology out of which 50 patients were diagnosed as Acute Myeloid Leukemia. The present study highlighted that light microscopic features of peripheral smear and bone marrow will still remain mainstay in the diagnosis of acute leukemias.

2014-01-01

68

[Mesenchymal chondrosarcoma (clinico-morphological study)].  

PubMed

Mesenchymal chondrosarcoma was found in 11 out of 161 patients with chondrosarcoma of the bone. The assaultive nature of the disease is illustrated by the following data: the period between the manifestation of symptoms and the first visit to the doctor was 5.9 +/- 4.3 months; metastases were detected within 20.56 +/- 6.04 months and 8 patients out of 10 died within the first 5 years. Two histological structures were observed: those of the chondrosarcoma type and hemangiopericytoma-like structures formed of small atypical cells. PMID:6636625

Solov'ev, Iu N; Eremina, L A; Petrovichev, N N; Khmelev, O N; Kasumov, I V

1983-01-01

69

Web Spoofing: An Internet Con Game  

NSDL National Science Digital Library

The Safe Internet Programming group at the Princeton University Department of Computer Science in 1996 published a paper on the practice known as "web spoofing," through which an attacker intervenes between an end-user browsing the Web and real Web sites. The attacker sets up a shadow copy of the Web, and as users request pages from sites they will receive pages from the attacker's site instead. This process also enables attackers to gather data (possibly credit card numbers, etc.) submitted through bogus web forms. The nine-page paper describes how the con game works and suggests remedies. The article is available in PostScript, compressed PostScript, Microsoft Word, and zipped Microsoft Word format. Unfortunately, it is not available online as HTML.

Balfanz, Dirk ..; Dean, Drew.; Felten, Edward W.; Wallach, Dan S.

1996-01-01

70

Cervical disc arthroplasty: Pros and cons  

PubMed Central

Background: Cervical disc arthroplasty has emerged as a promising potential alternative to anterior cervical discectomy and fusion (ACDF) in appropriately selected patients. Despite a history of excellent outcomes after ACDF, the question as to whether a fusion leads to adjacent segment degeneration remains unanswered. Numerous US investigational device exemption trials comparing cervical arthroplasty to fusion have been conducted to answer this question. Methods: This study reviews the current research regarding cervical athroplasty, and emphasizes both the pros and cons of arthroplasty as compared with ACDF. Results: Early clinical outcomes show that cervical arthroplasty is as effective as the standard ACDF. However, this new technology is also associated with an expanding list of novel complications. Conclusion: Although there is no definitive evidence that cervical disc replacement reduces the incidence of adjacent segment degeneration, it does show other advantages; for example, faster return to work, and reduced need for postoperative bracing.

Moatz, Bradley; Tortolani, P. Justin

2012-01-01

71

Pros and cons of phage therapy  

PubMed Central

Many publications list advantages and disadvantages associated with phage therapy, which is the use of bacterial viruses to combat populations of nuisance or pathogenic bacteria. The goal of this commentary is to discuss many of those issues in a single location. In terms of “Pros,” for example, phages can be bactericidal, can increase in number over the course of treatment, tend to only minimally disrupt normal flora, are equally effective against antibiotic-sensitive and antibiotic-resistant bacteria, often are easily discovered, seem to be capable of disrupting bacterial biofilms, and can have low inherent toxicities. In addition to these assets, we consider aspects of phage therapy that can contribute to its safety, economics, or convenience, but in ways that are perhaps less essential to the phage potential to combat bacteria. For example, autonomous phage transfer between animals during veterinary application could provide convenience or economic advantages by decreasing the need for repeated phage application, but is not necessarily crucial to therapeutic success. We also consider possible disadvantages to phage use as antibacterial agents. These “Cons,” however, tend to be relatively minor.

Loc-Carrillo, Catherine

2011-01-01

72

Tratamiento cognitivo-conductual para niños mexicanos con fobia social  

Microsoft Academic Search

Participaron 17 niños, entre 7 y 12 años, con fobia social asignados aleatoriamente a 3 condiciones: (a) niños bajo el protocolo Intervención en Adolescentes con Fobia Social (IAFS; Olivares, 2005), (b) el mismo protocolo a los niños e información a sus padres sobre el trastorno, y (c) lista de espera. En evaluaciones de pretest, postest, 3 y 6 meses después,

Flor Gil-Bernal; Laura Hernández-Guzmán

2009-01-01

73

RoboCon: A general purpose telerobotic control center  

SciTech Connect

This report describes human factors issues involved in the design of RoboCon, a multi-purpose control center for use in US Department of Energy remote handling applications. RoboCon is intended to be a flexible, modular control center capable of supporting a wide variety of robotic devices.

Draper, J.V.; Noakes, M.W. [Oak Ridge National Lab., TN (United States). Robotics and Process Systems Div.; Schempf, H. [Carnegie Mellon Univ., Pittsburgh, PA (United States); Blair, L.M. [Human Machine Interfaces, Inc., Knoxville, TN (United States)

1997-02-01

74

Breath Analysis Science at PittCon 2012, Orlando, Florida  

EPA Science Inventory

Breath analysis science was featured in three organized sessions at this year?s Pittsburgh Conference and Exposition, or ?PittCon 2012? (http://www.pittcon.org/). As described in previous meeting reports, PittCon is one of the largest international conferences for analytical chem...

75

Using the ConSAT: A Memo to Teachers.  

ERIC Educational Resources Information Center

Described is how teachers can use the Concept Structuring Analysis Technique (ConSAT) as a diagnostic, learning, and assessment task in teaching science. In essence, ConSAT assists students in organizing concepts on paper so that they may link what they already know to what they have to learn. The technique thus applies the philosophical notion of…

Champagne, Audrey B.; Klopfer, Leopold E.

76

Pro/con a precessional geodynamo  

NASA Astrophysics Data System (ADS)

The modest amount of research that exists on the ability, or lack of ability, of mantle precession to power a geodynamo developed mostly during the last half of the 1900s. Papers by Roberts and Stewartson (1965) and by Busse (1968) studied precession generally without a pro/con conclusion. Malkus in the late 1960s attempted to advance a positive role for precession through experiments and analysis. His experiments have survived criticism, but his analyses were discounted, especially by Rochester, Jacobs, Smylie, and Chong (1975) and by Loper (1975). Rochester, et al. critiqued existing analyses of precession, including those of Malkus, but did not reach a strong position either pro or con a precessional geodynamo. Loper argued emphatically that precession was not capable of powering the geodynamo. Explicit analyses that either critique or support Loper’s arguments have yet to appear in the literature. During the 1970s, Vanyo and associates studied energy dissipation during precession of satellite liquid fuels and its effect on satellite attitude stability. Engineers and scientists in every country that has launched satellites completed similar research. Some is published in the aerospace literature, more is available in company and government reports. Beginning in 1981, Vanyo and associates applied this knowledge to the very similar problem of energy dissipation and flow patterns in precessing mechanical models scaled geometrically and dynamically to the Earth’s liquid core. Energy experiments indicate massive amounts of mechanical energy are dissipated at the CMB, and flow experiments show complex motions within the boundary layer and axial flows with helicity throughout the interior. Analysis of Earth core precession also advanced, especially in several papers by Kerswell and by Tilgner in the late 1990s. Detail numerical models have yet to appear. Although progress in understanding the role of precession in Earth core motions has advanced, there remains a common belief, often expressed explicitly, that precession is incapable of energizing a geodynamo, a la Loper. We will present a critique of Loper’s 1975 paper and briefly discuss the common practice and belief that the geodynamo must be energized by thermal and/or compositional driven convection (motion). We note here that there is no observational evidence for existence of thermal or compositional convection within the liquid core or for growth of the solid core. Although there has been considerable success in adapting data in thermal/compositional models to yield near realistic solutions, that does not constitute a proof that those models apply to the Earth. There is absolute observational evidence for mantle precession, an Earth feature that is unique, along with the Earth’s magnetic field, among the terrestrial planets. We argue that great difficulty experienced in analysis and computation of precessional flow is a major explanation for its absence in current models of the geodynamo.

Vanyo, J.

2003-04-01

77

Crystal structure of a lectin from Canavalia maritima (ConM) in complex with trehalose and maltose reveals relevant mutation in ConA-like lectins  

Microsoft Academic Search

The crystal structure of Canavalia maritima lectin (ConM) complexed with trehalose and maltose revealed relevant point mutations in ConA-like lectins. ConM with the disaccharides and other ConA-like lectins complexed with carbohydrates demonstrated significant differences in the position of H-bonds. The main difference in the ConM structure is the replacement of Pro202 by Ser202, a residue that promotes the approximation of

Plínio Delatorre; Bruno A. M. Rocha; Carlos A. A. Gadelha; Tatiane Santi-Gadelha; João B. Cajazeiras; Emmanuel P. Souza; Kyria S. Nascimento; Valder N. Freire; Alexandre H. Sampaio; Walter F. Azevedo; Benildo S. Cavada

2006-01-01

78

Control del dolor: Apoyo para las personas con cáncer  

Cancer.gov

Libro sobre el control del dolor en pacientes con cáncer. Cubre los métodos y medicinas, así como los efectos físicos y emocionales del dolor. Es una adaptación cultural para el público de habla hispana del libro en inglés Pain Control.

79

La gestione perioperatoria del paziente con insufficienza cardiaca cronica  

Microsoft Academic Search

\\u000a L’elevata morbidità e mortalità perioperatoria dei pazienti con insufficienza cardiaca cronica o CHF (chronic heart failure) potranno certamente essere ridotte nei prossimi anni migliorando le capacità diagnostiche degli anestesisti e dei chirurghi\\u000a e la qualità delle loro strategie di trattamento. (Precisiamo che in questo capitolo la sigla CHF viene usata con riferimento\\u000a alla tuttora accettata definizione di “Chronic Heart Failure”;

Biagio Allaria

80

ConChat: a context-aware chat program  

Microsoft Academic Search

ConChat is a context-aware chat program that enriches electronic communication by providing contextual information and resolving potential semantic conflicts between users.ConChat uses contextual information to improve electronic communication. Using contextual cues, users can infer during a conversation what the other person is doing and what is happening in his or her immediate surroundings. For example, if a user learns that

A. Ranganathan; R. H. Campbell; A. Ravi; A. Mahajan

2002-01-01

81

Immunomodulatory effect of Tylophora indica on Con A induced lymphoproliferation.  

PubMed

Our preliminary studies with tylophora alkaloids had shown that they inhibit cellular immune responses like contact sensitivity to dinitro-flurobenzene and delayed hypersensitivity to sheep red blood cells, in vivo. Investigations were hence carried out to determine the cellular targets of tylophora alkaloids in in vitro systems. Con A induced proliferation of splenocytes was used as a model system to study the effect of the alkaloids on cellular immune responses. The alkaloid mixture was found to inhibit proliferation of splenocytes at higher concentrations and augment the same at lower concentrations. Both macrophages and T cells were found to be vulnerable to tylophora alkaloids. The alkaloid mixture suppressed IL-2 production in Con A stimulated splenocytes at the inhibitory or higher concentrations and enhanced production at the lower concentrations. IL-1 production by activated macrophages on the contrary was doubled in the presence of inhibitory concentrations of tylophora. These studies indicate that tylophora alkaloids have a concentration dependent biphasic effect on Con A induced mitogenesis. At lower concentrations they augment Con A induced lymphoproliferation by enhancing IL-2 production. Inhibition of proliferation at higher concentrations of the alkaloid is due to inhibition of IL-2 production and activation of macrophages, which have a cytostatic effect. PMID:11824517

Ganguly, T; Badheka, L P; Sainis, K B

2001-11-01

82

Cómo hacer las gestiones con su plan de salud  

Cancer.gov

Hay formas de saber si su plan de salud cubre los costos de atención médica de rutina durante un estudio clínico. Esta información puede servirle para saber con quién comunicarse para solicitar ayuda, preguntas que puede hacer y la información que debe recoger y guardar si decide participar en un estudio clínico.

83

Precisión de las velocidades radiales obtenidas con el REOSC  

NASA Astrophysics Data System (ADS)

Complementando una línea de trabajo iniciada con anterioridad discutimos la estabilidad del espectrógrafo REOSC de CASLEO en DC para la medición de velocidades radiales en base al análisis de observaciones realizadas en enero y abril de 1997. En esas oportunidades obtuvimos 26 espectros de estrellas patrones y 27 espectros de 3 estrellas usadas como estrellas de referencia en nuestro programa de cúmulos abiertos. Además tomamos 26 espectros de crepúsculo con el telescopio en posiciones cubriendo el rango H=-4,+4 y ? =-90,+30. Mediante correlaciones cruzadas derivamos la velocidad de 19 órdenes en cada uno de estos espectros. En base a un análisis estadístico de los datos obtenidos discutimos la contribución de los distintos factores que afectan a la dispersión de lectura observada. En particular, la flexión del instrumento no introduciría errores significativos cuando se observa con masas de aire menores que 2.0. La dispersión de los valores de velocidad medidos para espectros de alta relación S/N de una misma estrella resultó del orden de 0.5 km/s. La comparación con los valores de velocidad publicados por distintos autores para las estrellas patrones no permite distinguir ninguna diferencia sistemática apreciable de las velocidades de CASLEO, siendo la media cuadrática de los residuos del orden de 1.0 km/s.

González, J. F.; Lapasset, E.

84

ConNexus to awarenex: extending awareness to mobile users  

Microsoft Academic Search

We explored the use of awareness information to facilitate communication by developing a series of prototypes. The ConNexus prototype integrates awareness information, instant messaging, and other communication channels in an interface that runs on a desktop computer. The Awarenex prototype extends that functionality to wireless handheld devices, such as a Palm. A speech interface also enables callers to make use

John C. Tang; Nicole Yankelovich; James Begole; Max Van Kleek; Francis C. Li; Janak R. Bhalodia

2001-01-01

85

Inclusion: The Pros and Cons--A Critical Review  

ERIC Educational Resources Information Center

The purpose of this paper was to review, analyze, and critique the pros and cons, the advantages and disadvantages, of inclusion. The methodology consisted in analyzing and comparing research findings on the benefits and costs of inclusion. Federal legislation and regulations on inclusion were examined, analyzed, and discussed. The results showed…

Savich, Carl

2008-01-01

86

LunGradCon: The Lunar Graduate Conference  

NASA Astrophysics Data System (ADS)

Members of the Colorado Center for Lunar Dust and Atmospheric Studies (CCLDAS) initiated the Lunar Graduate Conference (LunGradCon), modeled after the highly successful Astrobiology Graduate Conference (AbGradCon). The purpose of this conference is to enhance the professional development of graduate students and early postdoctoral researchers by providing an opportunity to present and discuss scientific research in an environment of their peers. For the first two years, LunGradCon has been held as a one-day conference in conjunction with the NASA Lunar Science Institue's (NLSI) Lunar Science Forum at the NASA Ames Research Center. Activities include an invited overview talk on each of the NASA Lunar Science Institute's three main research areas (OF the Moon, ON the Moon, and FROM the Moon), submitted oral presentations from graduate students and postdoctoral researchers, and networking opportunities with established member of the lunar science community and the NLSI. In each of the first two years of LunGradCon, there have been 20-25 attendees, with about 15 of those presenting submitted talks. Each speaker received feedback forms from the other participants in order to improve on their presentation techniques. Participants also provided feedback on the conference as a whole in order to evaluate the content and provide suggestions for improvement in following years. Overall, the feedback has been extremely positive. This talk will summarize the achievements of past LunGradCons and plans for expansion of the conference to ensure a long-term positive impact on the early careers of future lunar, planetary and space science researchers.

Dove, A.; Poppe, A.; Neish, C.; Fagan, A.; Fuqua, H.; Kramer, G. Y.; Horanyi, M.

2011-12-01

87

Runtime Verification for Generic Classes with ConGu 2  

NASA Astrophysics Data System (ADS)

Even though generics became quite popular in mainstream object-oriented (OO) languages, approaches for checking at runtime the conformance of such programs against formal specifications still lack appropriate support. In order to overcome this limitation within ConGu, a tool-based approach we have been developing to support runtime conformance checking of Java programs against algebraic specifications, we recently proposed a notion of refinement mapping that allows to define correspondences between parametric specifications and generic classes. Based on such mappings, we also put forward a notion of conformance between the two concepts. In this paper we present how the new notion of conformance is supported by version 2 of the ConGu tool.

Crispim, Pedro; Lopes, Antónia; Vasconcelos, Vasco T.

88

The Pros and Cons of RFID in Supply Chain Management  

Microsoft Academic Search

This paper presents the pros and cons of using Radio-Frequency IDentification (RFID) in Supply Chain Management (SCM). While RFID has a greater number of benefits than its predecessor, the bar code, it currently comes at a price that many businesses still consider prohibitive. On the one hand, RFID is advantageous because it does not require line-of-sight scanning, it acts to

Katina Michael; Luke Mccathie

2005-01-01

89

Métodos con información genética para abordar la complejidad del cáncer de pulmón  

Cancer.gov

Se estima que 220 000 personas recibieron un diagnóstico de alguna forma de cáncer de pulmón en 2010. Es la principal causa de muertes relacionadas con el cáncer, con más de 157 000 muertes previstas en 2010.

90

Effect of different fixatives on Con A surface receptors of mouse peritoneal macrophages  

Microsoft Academic Search

The effects of glutaraldehyde, formaldehyde, or osmium tetroxide fixation on the number of labeled Con A surface receptors on mouse peritoneal macrophages were compared. Gold-labeled Con A receptors were found to be isolatedly arranged and evenly distributed on cell surfaces independent of the fixative used. Only cells preincubated with Con A and subsequently fixed by osmium tetroxide showed arrangement of

Th. Peschke; L. Wollweber; A. Gabert; K. Augsten; R. Stracke

1990-01-01

91

Probabilidad de colisión de cometas periódicos con partículas interplanetarias  

NASA Astrophysics Data System (ADS)

Se presentan resultados sobre la probabilidad de colisión de cometas de corto período con la población de partículas interplanetarias presentes en la región del cinturón de asteroides. Se encuentra que este proceso colisional afecta la evolución física de los cometas de manera no despreciable y puede ser el responsable de variaciones de brillo de tipo ``outburst". Se presentan resultados para algunos cometas en particular y se obtiene un límite inferior para el tamaño de los núcleos en función de la distribución de radios del cinturón de asteroides.

Gil Hutton, R.

92

Molecular diagnostics: Molecular Med Tri-Con 2013.  

PubMed

The 20th annual Molecular Med Tri-Con conference, sponsored by Cambridge Health Institute (MA, USA), consisted of over 250 presentations within five parallel 'channels': 'Diagnostics, Therapeutics, Clinical, Informatics and Cancer', along with five preliminary symposia, 15 short courses, a plenary keynote session entitled 'Personalized Oncology - Fulfilling the Promise for Today's Patients' and a keynote panel entitled, 'Emerging Technologies and Industry Perspectives'. Over 3000 individuals from academia, clinical laboratories and industry were in attendance. This article will focus on the Keynote Session of 'Molecular Diagnostics' track within the Diagnostics Channel. PMID:23895123

Klein, Roger D

2013-07-01

93

Endoscopic scoring systems for inflammatory bowel disease: pros and cons.  

PubMed

Endoscopy plays a pivotal role for diagnosis and assessment of disease activity and extent in patients with inflammatory bowel diseases. International guidelines recommend the use of endoscopic scoring systems for evaluation of the prognosis and efficacy of medical treatments. Ideal scoring systems are easy to use, reproducible, reliable, responsive to changes, and validated in different clinical settings in order to guide therapeutic strategies. However, currently available endoscopic scoring systems often appear as complex for routine endoscopy and suffer from insufficient interobserver agreement and lack of formal validation which often limit their use in clinical trials. Here, we describe the role of endoscopic scoring systems in inflammatory bowel diseases focusing on pros and cons in the era of advanced endoscopic imaging and mucosal healing. PMID:24650249

Tontini, Gian Eugenio; Bisschops, Raf; Neumann, Helmut

2014-07-01

94

RoboCon: Operator interface for robotic applications  

SciTech Connect

Carnegie Mellon U. and ORNL`s Robotics and Process Systems Division are developing a state-of-the-art robot operator control station (RoboCon) with standardized hardware and software control interfaces to be adaptable to a variety of remote and robotic equipment currently funded by DOE`s Office of Science & Technology Robotics Technology Development Program. The human operation and telerobotic and supervisory control of sophisticated and remote and robotic systems is a complex, tiring, and non-intuitive activity. Since decontamination & decommissioning, selective equipment removal, mixed waste operations, and in-tank cleanup are going to be a major future activity in DOE environmental restoration and waste management cleanup agenda, it seems necessary to utilize an operator control station and interface which maximizes operator comfort and productivity.

Schempf, H.; Warwick, J.; Fung, M.; Chemel, B.; Blackwell, M.

1996-12-31

95

IMPACT: integrated multiprogram platform for analyses in ConTest.  

PubMed

In this paper, we introduce a new Graphical User Interface that estimates evolutionary rates on protein sequences by assessing changes in biochemical constraints. We describe IMPACT, a platform-independent (tested in Linux, Windows, and MacOS), easy to install software written in Java. IMPACT integrates the use of a built-in multiple sequence alignment editor, with programs that perform phylogenetic and protein structure analyses (ConTest, PhyML, ATV, and Jmol) allowing the user to quickly and efficiently perform evolutionary analyses on protein sequences, including the detection of selection (negative and positive) signatures at the amino acid scale, which can provide fundamental insight about species evolution and ecological fitness. IMPACT provides the user with a working platform that combines a number of bioinformatics tools and utilities in one place, transferring information directly among the various programs and therefore increasing the overall performance of evolutionary analyses on proteins. PMID:21414966

Maldonado, Emanuel; Dutheil, Julien Y; da Fonseca, Rute R; Vasconcelos, Vítor; Antunes, Agostinho

2011-01-01

96

Pros, cons, and costs of INFUSE in spinal surgery  

PubMed Central

Background: INFUSE (recombinant human bone morphogenetic protein-2 [rh-BMP-2]; Medtronic, Memphis, TN, USA) is approved by the Federal Drug Administration (FDA) only for use with the lumbar tapered fusion device (LT Cage; Medtronic) to perform single-level anterior lumbar interbody fusions (ALIF: L2-S1 levels). INFUSE, however, is widely utilized in an “off-label” capacity for anterior and/or posterior cervical, thoracic, and lumbar surgery. Nevertheless, Medicare and other insurance companies, are now increasingly denying reimbursement (average cost of a “large” INFUSE to the hospital without overhead $5000-6000) to hospitals for INFUSE when utilized “off-label”. Methods: This commentary looks at several representative studies citing the cons associated with utilizing INFUSE in spinal surgery, contraindications, complications, and cost factors. Results: There are multiple cons of utilizing INFUSE in an “off-label” capacity for spinal surgery. Direct contraindications include pregnancy, allergy to titanium, allergy to bovine type I collagen or rhBMP-2, infection, tumor, liver or kidney disease, immunosuppression (e.g., lupus, HIV/AIDS); contraindications are also seen in those receiving radiation, chemotherapy, or steroids. Reported complications include exuberant/ectopic bone formation, paralysis (cord, nerve damage), dural tears, bowel–bladder and sexual dysfunction, respiratory failure, inflammation of adjacent tissues, fetal developmental complications, scar, excessive bleeding, and even death. Complications are so prevalent in the anterior cervical spine, that many surgeons no longer use it in this region. Similarly, INFUSE complications and indications for posterior lumbar interbody fusions (PLIFs) and transforaminal interbody lumbar fusions (TLIFs) should also be reexamined. Conclusions: More surgeons need to question the safety, efficacy, and appropriate “off-label” use of INFUSE in all spine surgeries.

Epstein, Nancy E.

2011-01-01

97

Con A conjugated to Europium(III) cryptate as a new histological tool for prostate cancer investigation using confocal microscopy.  

PubMed

Abstract Lectins are carbohydrate recognition proteins that can be used as probes to reveal the glycosylation state of cells. They frequently have been used for diagnostic and prognostic cancer studies. For fluorescence based analysis, lectins commonly are conjugated to fluorescein isothiocyanate (Con A-FITC); however, this molecule loses its fluorescence quickly. We conjugated Europium cryptate to Con A (Con A-cryp-Eu) for use as a histochemical luminescent probe to recognize glucose/mannose residues in benign prostatic hyperplasia and prostatic carcinoma tissues, and used confocal microscopy instead of commercial Con A-FITC. Tissues were treated with Evans blue to suppress intrinsic tissue fluorescence before incubation with Con A-cryp-Eu or Con A-FITC. Con A-cryp-Eu exhibited hemagglutinating activity. Con A-cryp-Eu showed the same binding pattern as Con A-FITC in prostate stroma and gland cells. Staining was strong in benign prostate hyperplasia and prostate carcinoma tissues. Con A-cryp-Eu probe stained glucose/mannose residues in prostatic carcinoma more intensely than Con A-FITC. Furthermore, staining with Con A-cryp-Eu showed greater fluorescence intensity than Con A-FITC and the emission of Con A-cryp-Eu was more stable than the Con A-FITC for seven days under the same storage conditions. Maintenance of the luminescent properties and the binding pattern of Con A-cryp-Eu favor its use as an auxiliary histochemistry probe for prostatic tissue studies. PMID:24160413

Rêgo, Mjbm; Silva, Lpbg; Medeiros, Jkg; Figueiredo, Rcbq; Alves-Júnior, S; Beltrão, Eic

2014-07-01

98

Development of new series of aluminium solid capacitors with organic semiconductive electrolyte (OS-CON)  

NASA Astrophysics Data System (ADS)

We have researched tetrecyanoquinodimethane (TCNQ) complex salts, developed a new series of organic semiconductive electrolytes (OS-CONs) such as chip-type OS-CONs, and improved our original facilities for mass-production of OS-CONs during the ten years since mass-production was begun. Results of this research and development are presented in this paper. Various new applications of OS-CONs have been developed which fully utilize their properties. This paper also introduces some of these new applications.

Niwa, Shinichi; Taketani, Yutaka

99

AIDS-related malignancies: clinico-radiological correlation  

Microsoft Academic Search

Although the etiopathogenetic correlation between AIDS and malignant neoplasm still remains controversial, a number of miscellaneous malignancies have been reported in patients with HIV infection. For Kaposi's sarcoma, B-cell non-Hodgkin's lymphoma and carcinoma of the uterine cervix alternatively a concurrent oncoviral infection or dysregulation of cellular growth have been advocated. For all the remaining neoplasms, besides their increased occurrence in

F. Ferrozzi; D. Bova; F. Campodonico; F. Chiara; M. Marini; P. Bassi

1995-01-01

100

Crouzon syndrome: clinico-radiological illustration of a case.  

PubMed

Crouzon syndrome, also called craniofacial dysostosis, is an autosomal dominant disorder with complete penetrance and variable expressivity. Described by a French neurosurgeon in 1912, it is a rare genetic disorder characterized by premature closure of cranial sutures, midfacial hypoplasia, and orbital defects. Here, we report a case of this rare entity. The patient presented with brachycephaly, maxillary hypoplasia, exophthalmos, mandibular prognathism, along with dental and orbital abnormalities. PMID:23393627

Mohan, Raviprakash Sasankoti; Vemanna, Naveen Shanker; Verma, Sankalp; Agarwal, Neha

2012-01-01

101

Crouzon Syndrome: Clinico-Radiological Illustration of a Case  

PubMed Central

Crouzon syndrome, also called craniofacial dysostosis, is an autosomal dominant disorder with complete penetrance and variable expressivity. Described by a French neurosurgeon in 1912, it is a rare genetic disorder characterized by premature closure of cranial sutures, midfacial hypoplasia, and orbital defects. Here, we report a case of this rare entity. The patient presented with brachycephaly, maxillary hypoplasia, exophthalmos, mandibular prognathism, along with dental and orbital abnormalities.

Mohan, Raviprakash Sasankoti; Vemanna, Naveen Shanker; Verma, Sankalp; Agarwal, Neha

2012-01-01

102

Genetic and clinico-pathologic analysis of metastatic uveal melanoma.  

PubMed

Uveal melanoma is the most common malignant tumor of the adult eye. Fifty percent of tumors will eventually metastasize, and there are no effective treatments for them. Recent studies of uveal melanoma have identified activating mutations in GNAQ and GNA11, loss-of-function mutations in the tumor suppressor gene BAP1, and recurrent mutations in codon 625 of SF3B1. Previous studies have reported the existence of a higher frequency of GNA11 than GNAQ mutations, frequent BAP1 loss, and rare SF3B1 mutations in metastatic uveal melanoma. We analyzed a cohort of 30 uveal melanoma metastases for the occurrence of GNAQ, GNA11, and SF3B1 mutations, as well as BAP1 loss, and correlated these parameters with clinical and histopathologic features. Most (92%) tumors were composed of cells with an epithelioid or mixed (<100% spindle cells) morphology. Tumor samples composed exclusively of spindle cells were rare (n=2, 8%). Most tumors showed a moderate to marked degree of nuclear pleomorphism (n=24, 96%), and contained hyperchromatic, vesicular nuclei with variably conspicuous nucleoli. GNA11 mutations were considerably more frequent than GNAQ mutations (GNA11, GNAQ, and wild-type in 18 (60%), 6 (20%), and 6 (20%) cases, respectively). SF3B1 mutation was found in 1 of 26 tumors (4%), whereas loss of BAP1 expression was present in 13 of 16 tumors (81%). Patients with GNA11-mutant tumors had poorer disease-specific survival (60.0 vs 121.4 months, P=0.03) and overall survival (50.6 vs 121.4 months, P=0.03) than those with tumors lacking GNA11 mutations. The survival data, combined with the predominance of GNA11 mutations in metastases, raises the possibility that GNA11-mutant tumors may be associated with a higher risk of metastasis and poorer prognosis than GNAQ-mutant tumors. Further studies of uveal melanoma are required to investigate the functional and prognostic relevance of oncogenic mutations in GNA11 and GNAQ. PMID:23887304

Griewank, Klaus G; van de Nes, Johannes; Schilling, Bastian; Moll, Iris; Sucker, Antje; Kakavand, Hojabr; Haydu, Lauren E; Asher, Marina; Zimmer, Lisa; Hillen, Uwe; Thompson, John F; Scolyer, Richard A; Schadendorf, Dirk; Murali, Rajmohan

2014-02-01

103

Clinico-radiologic Findings in Group II Caudal Regression Syndrome  

PubMed Central

Caudal regression syndrome (CRS) is a rare congenital abnormality in which a segment of the lumbo-sacral spine and spinal cord fails to develop. The severity of the morphologic derangement inversely correlates with residual spinal cord function. We present a case report of a 10-year-old girl with Group 2 CRS, to emphasize clinical and radiologic findings in this rare abnormality.

Sharma, Pankaj; Kumar, Sheo; Jaiswal, Awdesh

2013-01-01

104

Monosporium apiospermum meningoencephalitis: a clinico-pathological case.  

PubMed Central

Twenty nine cases of central nervous system infection due to Monosporium apiospermum have been reported. Six of them occurred after an aspiration pneumonia following a near drowning. The case of a 53 year old man is reported: M apiospermum was isolated from cerebrospinal fluid, sputum, urine and from the mud of the ditch where the patient had fallen. Though the treatment used recommended doses of intravenous, intrathecal and intraventricular amphotericin B, it was ineffective and the patient died 97 days after the near drowning. Necropsy showed that the ventricular infectious process was more prominent distant from the antifungal ventricular source. Images

Durieu, I; Parent, M; Ajana, F; Gosset, P; Smadja, D; Leclerc, X; Fournier, Y; Leys, D

1991-01-01

105

[Hereditary ovarian carcinomas: clinico-biological features and treatment].  

PubMed

Hereditary ovarian cancers account for 10% of all cases. Two major syndromes with dominant autosomal transmission are identified. The most common one is breast-ovarian cancer syndrome due to BRCA1 and BRCA2 genes mutations, and the Lynch syndrome with mutated MMR genes is the other. Alterations in homologous recombination specifically observed in ovarian cancer with BRCA defects associated to Parp inhibition create a synthetic lethality of special interest. Numerous studies are in progress to explore this promising new approach. Furthermore, it seems that carcinogenesis of these two syndromes are different, suggesting alternative therapeutic options in the near future in order to improve prognosis of ovarian carcinomas. PMID:24555961

Floquet, Anne; Stoeckle, Eberhard; Croce, Sabrina; Longy, Michel; Mc Grogan, Gaétan; Barouk, Emmanuelle; Bubien, Virginie; Garbay, Delphine; Joly, Eglantine; Guyon, Frédéric

2014-02-01

106

[Clinico-neurophysiological correlations in post-traumatic epilepsy].  

PubMed

A total of 76 subjects presenting with sequelae of moderately severe and severe craniocerebral injury were examined. Used in the study were electroencephalography, computerized and magnetic-resonance tomography of the brain. The degree of the clinically significant epileptic syndrome has been shown to be related to the site of trauma, perifocal, remote changes in brain tissue. The brain exhibits a local and total response to the craniocerebral injury, as evidenced by electroencephalography. PMID:12145895

Mironenko, T V; Zubov, P G

2002-01-01

107

Clinico-hematological profile of visceral leishmaniasis among immunocompetent patients.  

PubMed

We studied cases of visceral leishmaniasis (VL) over a 2-year period among immunocompetent patients who presented to a rural medical college in West Bengal, India to determine a clinical and hematological profile among these patients. We studied a total of 36 cases of VL; the male to female ratio of the cases was 1.6:1 and the mean age was 20.1+/-11.1 years. A detailed history, physical examination, hemogram, bone marrow or splenic aspiration and chest x-ray were conducted on all cases. A CT-scan of the thorax and fiberoptic bronchoscopy were performed in selected cases. Fever and splenomegaly were present in all cases. Weakness, abdominal pain, bleeding, and hepatomegaly were seen in 63.9, 27.8, 8.3 and 58.3% of cases, respectively. Pancytopenia, bicytopenia, leukopenia and thrombocytopenia were seen in 58.3, 41.7, 61.1 and 83.3% of cases, respectively. Five patients (13.9%) had cough, 2 (5.6%) had hemoptysis, 6 (16.7%) had an abnormal chest x-ray and 3 (8.3%) had localized reticulo-nodular opacities on a CT-scan of the thorax. Bronchoalveolar lavage showed gram-positive cocci in 2 cases (5.6%). One patient died of acute respiratory distress syndrome. Cytopenia was common among the series of VL patients. Pulmonary complications, usually secondary infection, were less frequent (found in 13.9% cases) but was fatal in one patient. PMID:23691621

Chakrabarti, Sudipta; Sarkar, Supriya; Goswami, Bidyut Krishna; Sarkar, Niladri; Das, Shikha

2013-03-01

108

[Semeiologic aspects of circumscribed thalamic lesions. Clinico-tomodensitometric study].  

PubMed

The classical thalamic syndrome of Dejerine and Roussy is very rare. Sensory disorder are almost constant but the thalamic hyperpathia had not been reported. Clinical findings are reported in 14 patients with restricted lesions of the thalamus visible with the CT scan. Occasionally aphasia was found in patients with left sided lesion (with Thalamic Neglect, apraxia, mainly of ideomotor type and the so-called "Central Dazzle"). Thalamic lesions can produce a great variability of signs and symptoms. PMID:7187966

Bogliun, G; Sanguineti, I; Tagliabue, M; Tredici, G

1982-01-01

109

SIGNIFICATO CLINICO DELLA PROTEINURIA NELLE PATOLOGIE RENALI DEI PICCOLI ANIMALI  

Microsoft Academic Search

Le patologie renali dei piccoli animali, spesso, vengono diagnosticate tardivamente, quando ormai si è istaurato un danno irreversibile per il quale l?intervento terapeutico causale può risultare ineffi cace. È stato valutato che in caso di insuffi cienza renale si ha un aumento dell?azotemia solo quando già il 75% del parenchima renale è compromesso da un punto di vista funzionale (Osborne

110

[A clinico-genetic study of male infertility with globozoospermia].  

PubMed

Eight patient with male infertility due to isolated or combined with other defects anomaly--round-headed spermatozoa, have been studied. Five of them have been studied. Five of the patients have been sporadic cases, whereas three cases have been familial ones. 100% of the spermatozoa in ejaculates from the patients with familial infertility had morphology of round-headed spermatozoa with lack of any proteolytic activity. In the patients with sporadic infertility the round-headed spermatozoa represented between 60 and 95% of the ejaculated cells. All of the patients were studied by chromosomal analyses (G-banding) and revealed normal male karyotypes 46, XY. The ratio affected: unaffected males in the 8 families studied implicates a monogenetic mode of inheritance (Coefficient of heredity 0.57) of the sperm anomaly. The distribution of the affected males in the three pedigrees with familial character of globozoospermia supports X-linked, sex-restricted dominant, or autosomal recessive modes of inheritance. PMID:10360046

Stanislavov, R; Ganev, V

1998-01-01

111

[Anterior high frequency capsulotomy. II. Clinico-surgical experiences].  

PubMed

Using an instrument developed by Klöti, the author performed anterior capsulotomy by means of a radio-frequency current in 21 cases of extracapsular cataract extraction. This group is compared with 21 control cases. The advantages and limits of this technique are discussed. The procedure was found to be simple and very helpful to the surgeon. There was no evidence of any damage to structures in the patient's eye. PMID:1614141

Coester, C; Klöti, R; Speiser, P

1992-05-01

112

A clinico-epidemiological study of rescuer burns.  

PubMed

Rescuer burn is a relatively newer terminology introduced to define the burns sustained by a person attempting to rescue a primary burn victim. Few studies have been published thus far on this peculiar type of burns. Due to the general neglect of the rescuer burns victim and discontinuation of treatment in most cases, once the primary victim dies, the rescuer often ends up in badly infected wounds and has a delayed return to work. A prospective study was conducted at the B J Medical College and Civil Hospital, Ahmedabad from January 2009 to December 2012 on the rescuer burns patients treated in its burns and plastic surgery department. 3074 patients of burns received treatment during the period of study. Of these, 48 patients gave the history of sustaining burns while trying to rescue a burns victim. Male to female ratio of rescuers was approximately 7:1. It was significantly higher as compared to the ratio of 1:0.8 of females to male burn victims observed at our centre (p?0.01). Average age of the rescuers was higher in males as compared to females but the difference was not significant (p?0.05). Of the 45 cases of female primary burns victims, male rescuer was husband of the primary victim in 41/45 cases (91.1%), mother was rescuer in three cases (6.6% cases) and sister was rescuer in one case. Though multiple people came to rescue a burns victim, in all cases, it was seen that it was the first rescuer who sustained burns himself or herself. None of the rescuers had any knowledge of the techniques and precautions to be taken while performing a rescue operation irrespective of their education status, indirectly pointing to the lack of any teaching on burns rescue in the school education curriculum. PMID:24360792

Basra, Baljeet Kumar; Suri, Manav P; Patil, Nilesh; Atha, Ravish; Patel, Natvar; Sachde, Jayesh P; Shaikh, M F

2014-08-01

113

Clinico-biochemical study of experimental complicated cataracts.  

PubMed

Clinically observed complicated cataracts, generally do not have a definite causal factor. We studied the effects of E. coli toxin injected suprachoroidally, to simulate the effect of toxins released by extraocular organisms on the lens. 79.2% of eyes had a definable cataract at the end of the 6th week of observation. The biochemical changes portrayed an increased oxidative activity in the lens, evidenced by a fall in glutathione concentration, and the consequent tertiary reorientation of proteins to increase insoluble proteins, forming a cataract. PMID:1810872

Sihota, R; Mohan, M; Angra, S K; Mathur, R L

1991-01-01

114

Non Invasive Biomedical Analysis. Breath Networking Session at PittCon 2011, Atlanta, Georgia Non Invasive Biomedical Analysis. Breath Networking Session at PittCon 2011, Atlanta, Georgia  

Microsoft Academic Search

Background This was the second year that our breath colleagues organized a networking session at the Pittsburgh Conference and Exposition, or 'PittCon' (www.pittcon.org\\/). This time it was called 'Non Invasive Biomedical Analysis' to broaden the scope a bit, but the primary focus remained on exhaled breath diagnostics. As reported last year in the Journal of Breath Research, PittCon continues to

Joachim D. Pleil

2011-01-01

115

Immune cascades in human intervertebral disc: the pros and cons  

PubMed Central

The unique structural hallmark of the intervertebral disc has made its central composition, the nucleus pulposus (NP), excluded from the immunologic tolerance. Consequently, the intervertebral disc is identified as an immune-privileged organ. Traditionally, local detrimental immune activities caused by NP at the lesion sites of the disc are noted as a significant factor contributing to disc degeneration. However, given the beneficial activities of immune cells in other immune-privileged sites on basis of current evidence, the degenerate disc might need the assistance of a subpopulation of immune cells to restore its structure and lessen inflammation. In addition, the beneficial impact of immune cells can be seen in the absorption of the herniated NP, which is an important factor causes the mechanical compression of nerve roots. Consequently, a modulated immune network in degenerate disc is essential for the restoration of this immune-privileged organ. Until now, the understandings of immune response in disc degeneration still rest on the harmful aspect. Further studies are needed to explore its beneficial influence. Accordingly, there are no absolutely the pros and cons in terms of immune reactions caused by NP.

Sun, Zhen; Zhang, Ming; Zhao, Xu-Hong; Liu, Zhi-Heng; Gao, Yang; Samartzis, Dino; Wang, Hai-Qiang; Luo, Zhuo-Jing

2013-01-01

116

Pros, Cons, and Alternatives to Weight Based Cost Estimating  

NASA Technical Reports Server (NTRS)

Many cost estimating tools use weight as a major parameter in projecting the cost. This is often combined with modifying factors such as complexity, technical maturity of design, environment of operation, etc. to increase the fidelity of the estimate. For a set of conceptual designs, all meeting the same requirements, increased weight can be a major driver in increased cost. However, once a design is fixed, increased weight generally decreases cost, while decreased weight generally increases cost - and the relationship is not linear. Alternative approaches to estimating cost without using weight (except perhaps for materials costs) have been attempted to try to produce a tool usable throughout the design process - from concept studies through development. This paper will address the pros and cons of using weight based models for cost estimating, using liquid rocket engines as the example. It will then examine approaches that minimize the impct of weight based cost estimating. The Rocket Engine- Cost Model (RECM) is an attribute based model developed internally by Pratt & Whitney Rocketdyne for NASA. RECM will be presented primarily to show a successful method to use design and programmatic parameters instead of weight to estimate both design and development costs and production costs. An operations model developed by KSC, the Launch and Landing Effects Ground Operations model (LLEGO), will also be discussed.

Joyner, Claude R.; Lauriem, Jonathan R.; Levack, Daniel H.; Zapata, Edgar

2011-01-01

117

A National Look at Postmodernism's Pros and Cons in Educational Leadership  

ERIC Educational Resources Information Center

The purpose of this article is to take a look at the pros and cons of postmodernism. It is imperative for administrators to closely examine educational theories and practices prior to instituting changes. The ability to read and digest challenging material keeps one informed and prepared to lead effectively. This paper will list the pros and cons

Townsell, Rhodena

2007-01-01

118

La salud en personas con discapacidad intelectual en Espa?a: estudio europeo POMONA-II  

PubMed Central

Introducción Estudios internacionales demuestran que existe un patrón diferenciado de salud y una disparidad en la atención sanitaria entre personas con discapacidad intelectual (DI) y población general. Objetivo Obtener datos sobre el estado de salud de las personas con DI y compararlos con datos de población general. Pacientes y métodos Se utilizó el conjunto de indicadores de salud P15 en una muestra de 111 sujetos con DI. Los datos de salud encontrados se compararon según el tipo de residencia de los sujetos y se utilizó la Encuesta Nacional de Salud 2006 para comparar estos datos con los de la población general. Resultados La muestra con DI presentó 25 veces más casos de epilepsia y el doble de obesidad. Un 20% presentó dolor bucal, y existió una alta presencia de problemas sensoriales, de movilidad y psicosis. Sin embargo, encontramos una baja presencia de patologías como la diabetes, la hipertensión, la osteoartritis y la osteoporosis. También presentaron una menor participación en programas de prevención y promoción de la salud, un mayor número de ingresos hospitalarios y un uso menor de los servicios de urgencia. Conclusiones El patrón de salud de las personas con DI difiere del de la población general, y éstas realizan un uso distinto de los servicios sanitarios. Es importante el desarrollo de programas de promoción de salud y de formación profesional específicamente diseñados para la atención de personas con DI, así como la implementación de encuestas de salud que incluyan datos sobre esta población.

Martinez-Leal, Rafael; Salvador-Carulla, Luis; Gutierrez-Colosia, Mencia Ruiz; Nadal, Margarida; Novell-Alsina, Ramon; Martorell, Almudena; Gonzalez-Gordon, Rodrigo G.; Merida-Gutierrez, M. Reyes; Angel, Silvia; Milagrosa-Tejonero, Luisa; Rodriguez, Alicia; Garcia-Gutierrez, Juan C.; Perez-Vicente, Amado; Garcia-Ibanez, Jose; Aguilera-Ines, Francisco

2011-01-01

119

Resistencia a la flexión de vigas laminadas con tres especies de madera tropical mexicana  

Microsoft Academic Search

La madera aserrada tiene un comportamiento estructural adecuado; sin embargo, hay factores que influyen negativamente en su uso; tales como, los defectos anatómicos, la escasez de piezas grandes y la extracción de volúmenes insuficientes. Para subsanar estas limitaciones, se puede considerar como alternativa la fabricación de vigas laminadas, las cuales se forman con láminas de madera pegadas con algún tipo

Artículo de Investigación; Omar Araujo Molina; Miguel Cerón Cardeña; Mario Chan Martín; Manuel Azueta García

2005-01-01

120

Antibiotic susceptibility of coagulase-negative staphylococci (CoNS): emergence of teicoplanin-non-susceptible CoNS strains with inducible resistance to vancomycin.  

PubMed

Coagulase-negative staphylococci (CoNS) have become increasingly recognized as important agents of nosocomial infection. One of the characteristics of CoNS is their resistance to multiple antimicrobial agents commonly used for the treatment of staphylococcal infections. CoNS strains (n?=?745) isolated from a university teaching hospital in China between 2004 and 2009 were tested for antibiotic resistance. The antibiotics were placed into three categories based on resistance levels of the CoNS strains to these antibiotics: high resistance (resistance rate >70?%), including penicillin G, oxacillin and erythromycin; medium resistance (resistance rate between 30 and 70?%), including tetracycline, clindamycin, ciprofloxacin, trimethoprim/sulfamethoxazole and chloramphenicol; and low resistance (resistance rate <30?%), including rifampicin, ceftizoxime and gentamicin. We also found that the prevalence of strains non-susceptible to teicoplanin increased from 4.5 to 6.7?% between 2008 and 2009. A one-step vancomycin agar selection experiment and subsequent population analysis revealed potentially vancomycin-resistant subpopulations that have been selected from the teicoplanin-non-susceptible strains. Vigilant surveillance of nosocomial isolates of CoNS is needed to determine their resistance to glycopeptides. PMID:21799199

Ma, Xiao Xue; Wang, En Hua; Liu, Yong; Luo, En Jie

2011-11-01

121

Bioquimioterapia ambulatoria con cisplatino, dacarbacina, interleucina-2 e interferón-alfa en pacientes con melanoma avanzado. Estudio multicéntrico en 44 pacientes  

Microsoft Academic Search

Resumen\\u000a Fundamento  Se ha descrito una importante actividad (50% de respuestas objetivas) con un pequeño número de supervivientes en los ensayos\\u000a clínicos de quimioinmunoterapia (QIT) para el melanoma diseminado. En la mayoría, la hospitalización era un requerimiento\\u000a habitual.\\u000a \\u000a \\u000a \\u000a Objetivos  Valorar la posibilidad de administración ambulatoria completa de la QIT dentro de un ensayo fase II multicéntrico con cisplatino+dacarbacina\\u000a (DTIC) en un día,

Elena Filipovich Vegas; José Ignacio Mayordomo Cámara; José Anadrés Meana García; Manuel Valladares Ayerbes; Jesús Florián Jericó; Juan José Bretón García; Remedios Blanco Guerrero; Dolores Isla Casado; Carmen Santander Lobera; Raquel Andrés Conejero; Bartolomeu Massuti Sureda; Alejandro Tres Sánchez

2003-01-01

122

Mapping the (Con)textual Plight of Man: The Temporal and Spatial Logics of Postmodem Masculinity  

Microsoft Academic Search

My thesis, Mapping the (Con)textual Plight of Man: The Temporal and Spatial Logics of Post modern Masculinity brings together a number of Marxist and Post-Structuralist theorists in order to make sense of the notion of \\

Jason Demers

2003-01-01

123

Análisis del espectro infrarrojo del polvo interestelar asociado con cúmulos globulares y de su evolución temporal  

NASA Astrophysics Data System (ADS)

El trabajo que se presenta investiga la dinámica de las partículas de polvo interestelar eyectadas por estrellas gigantes rojas en un cúmulo globular utilizando simulaciones numéricas de su interacción con el campo gravitatorio y con la radiación electromagnética de las estrellas. Se pretende con ello determinar la distribución espacial de ese material como una función del tiempo en un sistema similar a NGC 104 (47 Tuc). A partir de la distribución espacial resultante se obtuvo el espectro infrarrojo integrado el cual sugiere que el máximo contraste con la radiación estelar ocurre en longitudes de onda cercanas a 300 ?m y que decrece rápidamente hacia longitudes de onda menores, en las que suelen realizarse las observaciones.

Pellizza, L. J.; Forte, J. C.; Carpintero, D.

124

METODI PER LA VALUTAZIONE DEGLI AIUTI ALLE IMPRESE CON SPECIFICO TARGET TERRITORIALE  

Microsoft Academic Search

La valutazione d'impatto dei programmi di aiuto alle imprese con specifico target territoriale è un tema che ha interessato recenti sviluppi metodologici della letteratura statistico-economica internazionale e che ha registrato un crescente interesse anche in ambito italiano. L'assenza di dati di natura sperimentale per questo tipo di interventi espone al rischio di distorsione le stime d'impatto ottenibili con ciascuna delle

Daniele Bondonio

125

Análisis comparativo de 3 regímenes de tratamiento en niños con linfoma de Burkitt  

Microsoft Academic Search

Resumen  De enero de 1980 a junio de 1996 se trataron en nuestra institución un total de 86 pacientes con linfoma de Burkitt. El presente\\u000a estudio es una revisión retrospectiva en el que se comparan las complicaciones y los resultados de sobrevida utilizando 3\\u000a esquemas de tratamiento distintos.\\u000a \\u000a Se trataron 46 pacientes en el régimen 1, 26 con el régimen 2,

Rocío Cárdenas Cardós; Roberto Rivera Luna; Roxana Martínez Agreda; Carlos Calderón Elvir; Amparo Plata García

2001-01-01

126

Quimioterapia de alta dosis prolonga en forma significativa la supervivencia en pacientes con leucemia mieloide aguda  

Cancer.gov

Los resultados preliminares de un estudio clínico grande con asignación al azar de pacientes de 16 a 60 años de edad con leucemia mieloide aguda (LMA), un cáncer de la sangre y de la médula ósea, que no había sido tratada anteriormente, muestran que los pacientes que recibieron una alta dosis de daunorrubicina, un fármaco de quimioterapia disponible comercialmente, durante la terapia inicial vivieron más que los pacientes que recibieron una dosis normal del mismo fármaco.

127

Navegaçao conceitual em ambientes de gestao do conhecimento usando NavCon  

Microsoft Academic Search

This article presents conceptual navigation and NavCon, an architecture that implements this navigation in World-Wide Web pages. NavCon architecture makes use of ontology as metadata to contextualize user's search for information. Conceptual navigation is a technique to browse Web sites within a context. Context filters relevant retrieved information. Context also drives user's navigation through paths that meet his needs. Based

José Renato V. Dantas; Pedro Porfírio M. Farias

2008-01-01

128

Clinico-biologic features and treatment outcome of adult pro-B-ALL patients enrolled in the GIMEMA 0496 study: absence of the ALL1\\/AF4and of the BCR\\/ABLfusion genes correlates with a significantly better clinical outcome  

Microsoft Academic Search

24, 2o f 6, and 6o f 36 of theALL1\\/AF4- positive, BCR\\/ABL-positive, and ALL1\\/ AF4-BCR\\/AB-negative patients, respec- tively (P.007). None of the 24 ALL1\\/AF4- positive patients coexpressed the CD13 and\\/or CD33 myeloid antigens. By con- trast, CD13 and CD33 molecules were detected, respectively, in 3 of 6 and in 14 of 33 cases of the BCR\\/ABL-positive pa- tient group, and

Giuseppe Cimino; Loredana Elia; Marco Mancini; Luciana Annino; Barbara Anaclerico; Paola Fazi; Antonella Vitale; Giorgina Specchia

2003-01-01

129

Pros and cons: prospective predictors of marijuana use on a college campus.  

PubMed

Marijuana use on college campuses is prevalent and associated with high rates of abuse and dependence. The Marijuana Decisional Balance (MDB) scales measure perceived pros and cons toward marijuana use. Evidence supports reliability and concurrent validity of these scales, but the predictive validity has not yet been assessed. The current study evaluated the prospective predictive validity of pros and cons scales for marijuana use, as well as explored predictive validity for marijuana problem indicators. Secondary analyses included test-retest reliability and internal consistency, to provide additional evidence of psychometric properties. A total of 149 college students (57% recent marijuana users, 77% lifetime users) participated in a baseline survey, then completed a second survey one month later. All provided data on marijuana pros and cons, as well as use status in the past month. Users at each time point reported on use frequency, problems, and disorder symptoms. In the month between assessments, 55% of the students used marijuana. Both pros and cons subscales prospectively predicted use status in the subsequent month, but not use frequency. Pros prospectively predicted marijuana problems and dependence symptoms at follow-up, and remained a significant predictor of later dependence symptoms even after controlling for baseline dependence symptoms. In contrast, pros only marginally predicted abuse. Cons did not predict problems, abuse, or dependence symptoms. Pros and cons showed strong test-retest reliability (rs = 0.80-0.85) and internal consistency (alphas = 0.92-0.95). In a college sample, pros and cons of marijuana use demonstrated stability over one month, and prospectively predicted use. Pros may also have utility in predicting problems and dependence potential on college campuses. PMID:22985053

Elliott, Jennifer C; Carey, Kate B

2013-03-01

130

Concomitant administration of GonaCon™ and rabies vaccine in female dogs (Canis familiaris) in Mexico.  

PubMed

Mexico serves as a global model for advances in rabies prevention and control in dogs. The Mexican Ministry of Health (MMH) annual application of approximately 16 million doses of parenteral rabies vaccine has resulted in significant reductions in canine rabies during the past 20 years. One collateral parameter of rabies programs is dog population management. Enhanced public awareness is critical to reinforce responsible pet ownership. Surgical spaying and neutering remain important to prevent reproduction, but are impractical for achieving dog population management goals. GonaCon™, an anti-gonadotropin releasing hormone (GnRH) vaccine, was initially tested in captive female dogs on the Navajo Nation, 2008. The MMH led this international collaborative study on an improved formulation of GonaCon™ in captive dogs with local representatives in Hidalgo, Mexico in 2011. This study contained 20 bitches assigned to Group A (6 control), Group B (7 GonaCon™), and Group C (7 GonaCon™ and rabies vaccine). Vaccines were delivered IM. Animals were placed under observation and evaluated during the 61-day trial. Clinically, all dogs behaved normally. No limping or prostration was observed, in spite of minor muscle atrophy post-mortem in the left hind leg of dogs that received GonaCon™. Two dogs that began the study pregnant give birth to healthy pups. Dogs that received a GonaCon™ injection had macro and microscopic lesions consistent with prior findings, but the adverse injection effects were less frequent and lower in intensity. Both vaccines were immunogenic based on significant increases in rabies virus neutralizing antibodies and anti-GnRH antibodies in treatment Groups B and C. Simultaneous administration of GonaCon™ and rabies vaccine in Group C did not affect immunogenicity. Progesterone was suppressed significantly in comparison to controls. Future studies that monitor fertility through multiple breeding cycles represent a research need to determine the value of integrating this vaccine into dog rabies management. PMID:23871822

Vargas-Pino, Fernando; Gutiérrez-Cedillo, Verónica; Canales-Vargas, Erick J; Gress-Ortega, Luis R; Miller, Lowell A; Rupprecht, Charles E; Bender, Scott C; García-Reyna, Patricia; Ocampo-López, Juan; Slate, Dennis

2013-09-13

131

Virulence, Speciation and Antibiotic Susceptibility of Ocular Coagualase Negative Staphylococci (CoNS)  

PubMed Central

Background: Coagulase negative Staphylococci (CoNS) are common inhabitants of human skin and mucous membranes. With the emergence of these organisms as prominent pathogens in patients with ocular infections, investigation has intensified in an effort to identify important virulence factors and to inform new approaches to treatment and prevention. Aim: To isolate CoNS from ocular specimens; to study the possible virulence factors; speciation of coagulase negative staphylococci (CoNS) which were isolated from ocular complications; antibiotic susceptibility testing of ocular CoNS. Materials and Methods: The specimens were collected from the target patients who attended the Microbiology Laboratory of a tertiary care eye hospital in Coimbatore, Tamilnadu state, India. The isolates were subjected to tube and slide coagulase tests for the identification of CoNS. All the isolates were subjected to screening for lipase and protease activities. Screening for other virulence factors viz., slime production on Congo red agar medium and haemagglutination assay with use of 96-well microtitre plates. These isolates were identified upto species level by performing biochemical tests such as phosphatase test, arginine test, maltose and trehalose fermentation tests and novobiocin sensitivity test. The isolates were subjected to antibiotic susceptibility studies, based on the revised standards of Clinical and Laboratory Standards Institutes (CLSI). Results: During the one year of study, among the total 260 individuals who were screened, 100 isolates of CoNS were obtained. Lipolytic activity was seen in all the isolates, whereas 38 isolates showed a positive result for protease. A total of 63 isolates showed slime production. Of 100 isolates, 30 isolates were analyzed for haemagglutination, where 4 isolates showed the capacity to agglutinate the erythrocytes. The results of the biochemical analysis revealed that of the 100 isolates of CoNS, 43% were Staphylococcus epidermidis. The other isolates were identified as S. xylosus (n=8), S. captis (n=16), S. haemolyticus (n=10), S. saccharolyticus (n=2), S. hominis (n=5), S. saprophyticus (n=6) and S. intermedius (n=1). On the other hand, 9 isolates were not identified. In the antibiotic susceptibility analysis, it was found that most of the isolates were sensitive to vancomycin, amikacin and linczolid and resistant to cefatoxime, oxacillin, bacitracin and nalidixic acid. Conclusion: S. epidermidis was found to be predominant in causing the ocular complications. Slime production, heamagglutination, protease and lipase activities could be the putative virulence factors of CoNS. Antibiotic susceptibility patterns of CoNS against antibacterial agents revealed maximum resistance to beta lactam groups, and the resistance was found to be higher to oxacillin, and lowest to vancomycin.

Priya, Ravindran; Mythili, Arumugam; Singh, Yendremban Randhir Babu; Sreekumar, Haridas; Manikandan, Palanisamy; Panneerselvam, Kanesan

2014-01-01

132

Virulence, Speciation and Antibiotic Susceptibility of Ocular Coagualase Negative Staphylococci (CoNS).  

PubMed

Background: Coagulase negative Staphylococci (CoNS) are common inhabitants of human skin and mucous membranes. With the emergence of these organisms as prominent pathogens in patients with ocular infections, investigation has intensified in an effort to identify important virulence factors and to inform new approaches to treatment and prevention. Aim: To isolate CoNS from ocular specimens; to study the possible virulence factors; speciation of coagulase negative staphylococci (CoNS) which were isolated from ocular complications; antibiotic susceptibility testing of ocular CoNS. Materials and Methods: The specimens were collected from the target patients who attended the Microbiology Laboratory of a tertiary care eye hospital in Coimbatore, Tamilnadu state, India. The isolates were subjected to tube and slide coagulase tests for the identification of CoNS. All the isolates were subjected to screening for lipase and protease activities. Screening for other virulence factors viz., slime production on Congo red agar medium and haemagglutination assay with use of 96-well microtitre plates. These isolates were identified upto species level by performing biochemical tests such as phosphatase test, arginine test, maltose and trehalose fermentation tests and novobiocin sensitivity test. The isolates were subjected to antibiotic susceptibility studies, based on the revised standards of Clinical and Laboratory Standards Institutes (CLSI). Results: During the one year of study, among the total 260 individuals who were screened, 100 isolates of CoNS were obtained. Lipolytic activity was seen in all the isolates, whereas 38 isolates showed a positive result for protease. A total of 63 isolates showed slime production. Of 100 isolates, 30 isolates were analyzed for haemagglutination, where 4 isolates showed the capacity to agglutinate the erythrocytes. The results of the biochemical analysis revealed that of the 100 isolates of CoNS, 43% were Staphylococcus epidermidis. The other isolates were identified as S. xylosus (n=8), S. captis (n=16), S. haemolyticus (n=10), S. saccharolyticus (n=2), S. hominis (n=5), S. saprophyticus (n=6) and S. intermedius (n=1). On the other hand, 9 isolates were not identified. In the antibiotic susceptibility analysis, it was found that most of the isolates were sensitive to vancomycin, amikacin and linczolid and resistant to cefatoxime, oxacillin, bacitracin and nalidixic acid. Conclusion: S. epidermidis was found to be predominant in causing the ocular complications. Slime production, heamagglutination, protease and lipase activities could be the putative virulence factors of CoNS. Antibiotic susceptibility patterns of CoNS against antibacterial agents revealed maximum resistance to beta lactam groups, and the resistance was found to be higher to oxacillin, and lowest to vancomycin. PMID:24995181

Priya, Ravindran; Mythili, Arumugam; Singh, Yendremban Randhir Babu; Sreekumar, Haridas; Manikandan, Palanisamy; Panneerselvam, Kanesan; Shobana, Coimbatore Subramanian

2014-05-01

133

ConA-based glucose sensing using the long-lifetime azadioxatriangulenium fluorophore  

NASA Astrophysics Data System (ADS)

Fluorescent glucose sensing technologies have been identified as possible alternatives to current continuous glucose monitoring approaches. We have recently introduced a new, smart fluorescent ligand to overcome the traditional problems of ConA-based glucose sensors. For this assay to be translated into a continuous glucose monitoring device where both components are free in solution, the molecular weight of the smart fluorescent ligand must be increased. We have identified ovalbumin as a naturally-occurring glycoprotein that could serve as the core-component of a 2nd generation smart fluorescent ligand. It has a single asparagine residue that is capable of displaying an N-linked glycan and a similar isoelectric point to ConA. Thus, binding between ConA and ovalbumin can potentially be monovalent and sugar specific. This work is the preliminary implementation of fluorescently-labeled ovalbumin in the ConA-based assay. We conjugate the red-emitting, long-lifetime azadioxatriangulenium (ADOTA+) dye to ovalbumin, as ADOTA have many advantageous properties to track the equilibrium binding of the assay. The ADOTA-labeled ovalbumin is paired with Alexa Fluor 647-labeled ConA to create a Förster Resonance Energy Transfer (FRET) assay that is glucose dependent. The assay responds across the physiologically relevant glucose range (0-500 mg/dL) with increasing intensity from the ADOTA-ovalbumin, showing that the strategy may allow for the translation of the smart fluorescent ligand concept into a continuous glucose monitoring device.

Cummins, Brian; Simpson, Jonathan; Gryczynski, Zygmunt; Sørensen, Thomas Just; Laursen, Bo W.; Graham, Duncan; Birch, David; Coté, Gerard

2014-02-01

134

ConSole: using modularity of Contact maps to locate Solenoid domains in protein structures  

PubMed Central

Background Periodic proteins, characterized by the presence of multiple repeats of short motifs, form an interesting and seldom-studied group. Due to often extreme divergence in sequence, detection and analysis of such motifs is performed more reliably on the structural level. Yet, few algorithms have been developed for the detection and analysis of structures of periodic proteins. Results ConSole recognizes modularity in protein contact maps, allowing for precise identification of repeats in solenoid protein structures, an important subgroup of periodic proteins. Tests on benchmarks show that ConSole has higher recognition accuracy as compared to Raphael, the only other publicly available solenoid structure detection tool. As a next step of ConSole analysis, we show how detection of solenoid repeats in structures can be used to improve sequence recognition of these motifs and to detect subtle irregularities of repeat lengths in three solenoid protein families. Conclusions The ConSole algorithm provides a fast and accurate tool to recognize solenoid protein structures as a whole and to identify individual solenoid repeat units from a structure. ConSole is available as a web-based, interactive server and is available for download at http://console.sanfordburnham.org.

2014-01-01

135

Observations on the use of GonaCon in captive female elk (Cervus elaphus).  

PubMed

Overabundant populations of elk (Cervus elaphus) are a significant concern in some areas of the western United States because of potential ecologic damage and spread of brucellosis to domestic livestock. Brucella abortus is transmitted among elk through direct contact with aborted fetuses, placentas and associated fluids, or postpartum discharge of infected animals. Because transmission of brucellosis is dependent on pregnancy, contraception of cows could be used for both disease and population management. The objective of this study was to evaluate the contraceptive efficacy of a gonadotropin-releasing hormone vaccine (GonaCon) in female elk. In September 2004, cows were given a single immunization of either 1,000 microg (n = 12) or 2,000 microg (n = 10) of GonaCon and compared with a group of adjuvant-treated controls (n = 15). In November 2004, 2005, and 2006, cows were grouped with bulls for the breeding season. Blood samples were taken in February 2005 and March 2006 and 2007 for pregnancy testing, progesterone assays, and antibody titers. For cows given 1,000 microg GonaCon the percentages that were infertile for 2005, 2006, and 2007 were 86%, 90%, and 100%, respectively, compared with 90%, 100%, and 100% for cows given 2,000 microg GonaCon. Rates of infertility for control cows were 23%, 28%, and 0% (P<0.0001). The results indicated that either dose of GonaCon prevented pregnancy of elk cows for at least 3 yr. We concluded that GonaCon use for population management of elk warrants consideration as part of a strategy to control brucellosis. PMID:19204347

Killian, Gary; Kreeger, Terry J; Rhyan, Jack; Fagerstone, Kathleen; Miller, Lowell

2009-01-01

136

GeConT 2: gene context analysis for orthologous proteins, conserved domains and metabolic pathways  

PubMed Central

The Gene Context Tool (GeConT) allows users to visualize the genomic context of a gene or a group of genes and their orthologous relationships within fully sequenced bacterial genomes. The new version of the server incorporates information from the COG, Pfam and KEGG databases, allowing users to have an integrated graphical representation of the function of genes at multiple levels, their phylogenetic distribution and their genomic context. The sequence of any of the genes can be easily retrieved, as well as the 5? or 3? regulatory regions, greatly facilitating further types of analysis. GeConT 2 is available at: http://bioinfo.ibt.unam.mx/gecont.

Martinez-Guerrero, C. E.; Ciria, R.; Abreu-Goodger, C.; Moreno-Hagelsieb, G.; Merino, E.

2008-01-01

137

Con_A-carbone nanotube conjugate with short wave near-infrared laser ablation for tumor therapy  

Microsoft Academic Search

Using the characteristics of T cell mitogen called lectin protein from the jack-beam Canavalia ensiformis Concanavalin A (Con_A) with dual activities, cytotoxicity and immunomodulation, we have shown it has a therapeutic effect on hepatoma. Injection of Con_A can eradicate the established malign tumor, because Con_A can induce tumor cell autophagic, cell-programmed death, as well as activate the effector T cells.

Huan-Yao Lei; Ching-An Peng; Ming-Jer Tang; Kit Reindhart; Harold H. Szu

2009-01-01

138

Cost-of-Living Adjustments in Teacher Contracts: Pros and Cons. ERS Information Aid.  

ERIC Educational Resources Information Center

This publication summarizes the history of cost-of-living (COL) adjustment clauses in salary contracts in private industry and the teaching profession, and then discusses the pros and cons of including COL clauses in teacher contracts. The merits of COL clauses are examined from the viewpoints of both employees and employers. Included are a number…

Sullivan, Joan P.

139

Violación del Principio de Equivalencia en Teorías con Dilatón de Cuerdas  

Microsoft Academic Search

Se estudian las violaciones al Principio de Equivalencia en Teorías con Dilatón de Cuerdas. En estos modelos, algunas de las constantes fundamentales dependen del espacio y del tiempo. Se muestra que los experimentos de caída libre no tienen aún precisión como para poner límites a los parámetros de la teoría.

S. J. Landau; P. D. Sisterna; H. Vucetich

2003-01-01

140

Violación del Principio de Equivalencia en Teorías con Dilatón de Cuerdas  

NASA Astrophysics Data System (ADS)

Se estudian las violaciones al Principio de Equivalencia en Teorías con Dilatón de Cuerdas. En estos modelos, algunas de las constantes fundamentales dependen del espacio y del tiempo. Se muestra que los experimentos de caída libre no tienen aún precisión como para poner límites a los parámetros de la teoría.

Landau, S. J.; Sisterna, P. D.; Vucetich, H.

141

A Qualitative Approach to Upward Evaluation of Leadership Performance: Pros and Cons  

ERIC Educational Resources Information Center

This article describes a qualitative upward evaluation of the leadership performance of library managers. Follow-up studies were conducted, focusing on the advantages and disadvantages of the qualitative approach to upward appraisal. The authors discuss pros and cons to guide others who might use this methodology for upward appraisals in the…

Turrentine, Cathryn G.; Lener, Edward F.; Young, Michelle L.; Kok, Victoria T.

2004-01-01

142

An Alternative Hemostatic Dressing: Comparison of CELOX, HemCon, and  

Microsoft Academic Search

Objectives: Uncontrolled hemorrhage remains a leading cause of traumatic death. Several topical adjunct agents have been shown to be effective in controlling hemorrhage, and two, chitosan wafer dressing (HemCon (HC)) and zeolite powder dressing (QuikClot (QC)), are being utilized regularly on the battlefield. However, recent literature reviews have concluded that no ideal topical agent exists. The authors compared a new

Buddy G. Kozen; Sara J. Kircher; Jose Henao; Fermin S. Godinez; Andrew S. Johnson

143

Outsource or in-house facilities management: The pros and cons  

Microsoft Academic Search

The question of the merits of outsourcing facilities management remains relevant. This paper attempts to determine a clear distinction between out tasking and outsourcing, and then to provide a model to explain the advantages (pros) and disadvantages (cons) of this strategy by analysing the wants of both the client and supplier. Finally, it offers some guidance to assist with remedying

Neil Usher

2004-01-01

144

El cáncer según su ubicación en el cuerpo: Relacionado con el sida  

Cancer.gov

In English En español In English En español El cáncer según su ubicación en el cuerpo: Relacionado con el sida Para buscar un tipo de cáncer, seleccione su ubicación en el cuerpo — Aparato locomotor Aparato respiratorio y tórax Cabeza y cuello

145

DISEÑO E IMPLEMENTACIÓN ÓPTIMA DE PERIFÉRICOS DE DSP CON SYSTEM GENERATOR PARA MICROBLAZE  

Microsoft Academic Search

Con este trabajo pretendemos analizar como se lleva a cabo el diseño de periféricos de DSP utilizando uno de los nuevos entornos de diseño de alto nivel: System Generator for DSP. Así, en este documento el objetivo es mostrar por un lado las características del entorno de diseño y las herramientas utilizadas y por otro la metodología de diseño e

J. Viejo; E. Ostua; M. J. Bellido; J. Juan; A. Millan; P. Ruiz-de-Clavijo; D. Guerrero

146

Immunostimulatory activity of ConBr: a focus on splenocyte proliferation and proliferative cytokine secretion.  

PubMed

Lectins constitute a class of glycoproteins, which are capable of selectively and reversibly binding to carbohydrates, distinguishing small structural differences in complex oligosaccharides. Studies have shown that the binding of lectins to cell-surface carbohydrates can lead to various effects such as cellular proliferation, histamine release and cytokine production. Canavalia brasiliensis lectin (ConBr) is a (D-mannose) D-glucose lectin. In this study, murine splenocytes were cultured to determine the effect of ConBr on cell proliferation, nitric oxide (NO) release and cytokine secretion. In addition, cellular viability assays were performed to evaluate any mitogenic activity induced by this lectin. ConBr significantly increased cell proliferation with minimal cell damage. This lectin was able to induce an increased production of cytokines such as IL-2, IL-6 and IFN-? and a decreased production of IL- 10. The release of NO was also observed. The results of this study indicate that ConBr could potentially be used as an immunomodulator. PMID:22009293

de Oliveira Silva, Flávio; das Neves Santos, Priscila; de Melo, Cristiane Moutinho Lagos; Teixeira, Edson Holanda; de Sousa Cavada, Benildo; Arruda, Francisco Vassiliepe Sousa; Cajazeiras, João Batista; Almeida, Alysson Chaves; Pereira, Valéria Alves Rêgo; Porto, Ana Lúcia Figueiredo

2011-11-01

147

SISTEMA REMOTO DE ADQUISICIÓN PARA EL CONTROL DEL RUIDO AMBIENTAL CON FPGA Y FPAA  

Microsoft Academic Search

RESUMEN Este artículo propone el diseño de un sistema de adquisición de datos con componentes digitales y analógicos microelectrónicos reconfigurables, como son el FPGA (Field Programmable Gate Array) y el FPAA (Field Programmable Analog Array), para monitorear y analizar la contaminación por ruido ambiental. Este prototipo obtiene los datos del ruido de una zona vial (zona centro de una ciudad)

A. Castillo Atoche; J. Vázquez Castillo; V. Sanchez Huerta; P. Del Río Dawn

148

Somatic Chromosomes of Eight Mammals from Con Son Island, South Vietnam.  

National Technical Information Service (NTIS)

Somatic chromosomes of mammals from Con Son Island, Republic of (South) Vietnam were: Suncus murinus murinus, 2n=40; Tupaia glis dissimilis, 2n=60; Macaca fascicularis condorensis, 2n=42; Rattus berdmorei magnus, 2n=40; R. exulans subsp., 2n=42; R. nivive...

J. F. Duncan P. F. D. Van Peenen P. F. Ryan

1969-01-01

149

ANALISI SPERIMENTALE DEL CONTATTO PIANO-PIANO CON INDENTATORE CILINDRICO RACCORDATO  

Microsoft Academic Search

Sommario Nel presente studio è proposta l'analisi sperimentale, mediante ultrasuoni, del contatto tra un indentatore cilindrico piano a bordi raccordati ed un piano, problema per il quale è stata recentemente proposta una soluzione analitica mai validata sperimentalmente. Per ciascun accoppiamento è stata valutata la riflessione dall'interfaccia, che è noto essere in relazione con lo stato di contatto. I risultati sperimentali

B. Leban; M. Pau; A. Baldi; F. Ginesu

150

Electronic structure and reactivity of the CNO/NCO/CON isomers  

NASA Astrophysics Data System (ADS)

Three-dimensional potential energy surfaces (PESs) have been calculated for the lowest electronic states of NCO, CNO and CON isomers, using internally contracted Multi Reference Configuration Interaction (MRCI) and Coupled-Clusters RCCSD(T) ab initio methods. For the low lying doublet and quartet excited states of the three isomers, the N-CO, O-CN, C-NO and C-ON collinear dissociation paths were mapped by the Complete Active Space SCF (CASSCF) approach and the energy variations with the bending coordinate have been explored. Several regions of conical intersections have been located and the spin-orbit interactions between states of different spin symmetry have been evaluated in the region of intersections of these states. The analysis of the PESs allows one to identify the main interactions governing the reactivity of the lowest electronic states. The NCO and CNO isomers have stable X2? electronic ground states, for CON the X2? ground state is separated from the dissociative [CO + N] asymptote by a barrier of 0.11 eV and crosses the dissociative 4? - state close to its minimum. At their equilibrium ground state geometries the spin-orbit interactions ASO between the two electronic components of the X2? states were calculated to be -95.6, -109.6 and -57.1 cm-1 for NCO, CNO and CON, respectively. The predissociation of the vibrational levels of the A2?+ and B2? states of NCO has been explained.

Yazidi, O.; Gritli, H.; Chambaud, G.

151

Simulation of Command and Control in the Conflict Model (ConMod).  

National Technical Information Service (NTIS)

The Conflict Model (ConMod) is an analytic computer model for simulating military conflict at the corps and echelons above corps levels. The model addresses operational concepts of air and ground forces engaged in deep, rear, and close combat. The model s...

Y. H. Chiu C. D. Jones G. D. Kreis S. C. Simonson S. M. Strange

1987-01-01

152

Crack and cook: A simple and quick process for elimination of concanavalin A (Con A) from Canavalia seeds  

Microsoft Academic Search

The most nutritionally important antinutritional factor in the Canavalia seeds is Concanavalin A (Con A) which takes at least 3h of cooking at 96°C to inactivate. The effect of breaking the seeds into smaller pieces before cooking on the Con A content was investigated. Whole seeds of Canavalia ensiformis (jackbean) and Canavalia ensiformis seeds that were broken into smaller pieces

A. B. I Udedibie; C. R Carlini

1998-01-01

153

76 FR 54533 - Pipeline Safety: Issuance of Draft Decision on GexCon US, Inc. Petition for Approval of Flame...  

Federal Register 2010, 2011, 2012, 2013

...Draft Decision on GexCon US, Inc. Petition for Approval of Flame Acceleration Simulator AGENCY: Pipeline and Hazardous Materials...Draft Decision on GexCon US, Inc.'s petition for approval of Flame Acceleration Simulator (FLACS). The Draft Decision is...

2011-09-01

154

ConBr, a lectin from Canavalia brasiliensis seeds, protects against quinolinic acid-induced seizures in mice.  

PubMed

Lectins are proteins capable of reversible binding to carbohydrates or glycoconjugates. In the central nervous system of mammals, lectins with affinity for mannose/glucose or galactose can modulate cellular communication. ConBr, a lectin isolated from the seeds of Canavalia brasiliensis, previously showed antidepressant effect in the forced swimming test in mice, with involvement of the monoaminergic system. In this study, we investigated the neuroprotective effects of ConBr against quinolinic acid (QA), a well-known NMDA agonist that produces severe neurotoxicity when administered in vivo. ConBr (10 ?g/site) administered via intracerebroventricular (i.c.v.) showed a neuroprotective activity against seizures induced by QA (36.8 nmol/site; i.c.v.) when administered 15 min prior to QA, with a percentage of protection around 50%. ConBr was also able to significantly decrease the severity of the seizures but without changes in the latency of the first convulsion or the duration of the seizures. This effect was dependent on the structural integrity of the ConBr protein and its binding capacity to oligosaccharides residues. ConA, a lectin with high similarity to ConBr, did not reverse the QA-induced seizures. Moreover, ConBr was able to protect against hippocampal cell death caused by QA, which was measured by propidium iodide incorporation. QA caused activation of JNK2 and improved the phosphorylation of Ser831 and 845 on the AMPA receptor GluR1 subunit, and both of these effects were counteracted by ConBr. Our data suggest that the lectin ConBr may exert a modulatory action on NMDA receptors, which inhibits its activity in response to QA. PMID:21948344

Russi, Michael A; Vandresen-Filho, Samuel; Rieger, Débora K; Costa, Ana Paula; Lopes, Mark W; Cunha, Rodrigo M S; Teixeira, Edson H; Nascimento, Kyria S; Cavada, Benildo S; Tasca, Carla I; Leal, Rodrigo B

2012-02-01

155

Air Traffic Management Technology Demonstration-1 Concept of Operations (ATD-1 ConOps)  

NASA Technical Reports Server (NTRS)

The operational goal of the ATD-1 ConOps is to enable aircraft, using their onboard FMS capabilities, to fly Optimized Profile Descents (OPDs) from cruise to the runway threshold at a high-density airport, at a high throughput rate, using primarily speed control to maintain in-trail separation and the arrival schedule. The three technologies in the ATD-1 ConOps achieve this by calculating a precise arrival schedule, using controller decision support tools to provide terminal controllers with speeds for aircraft to fly to meet times at a particular meter points, and onboard software providing flight crews with speeds for the aircraft to fly to achieve a particular spacing behind preceding aircraft.

Baxley, Brian T.; Johnson, William C.; Swenson, Harry; Robinson, John E.; Prevot, Thomas; Callantine, Todd; Scardina, John; Greene, Michael

2012-01-01

156

Disfrute del sol con cuidado -- Cualquier persona puede padecer cáncer de piel  

Cancer.gov

Está bien pasar algún tiempo en el sol, pero usted debe saber que las personas de piel más oscura –incluso muchos hispanos o latinos– tienen riesgo de padecer cáncer de piel. Siempre que pueda, evite exponerse al sol, especialmente entre las 10 a.m. y las 4 p.m., cuando los rayos del sol son más fuertes. Si trabaja o juega al aire libre, cúbrase y protéjase la piel con prendas de vestir, sombreros, lentes, filtros solares.

157

The International Consortium for the Investigation of Renal Malignancies (I-ConFIRM)  

Cancer.gov

I-ConFIRM (The International Consortium for the Investigation of Renal Malignancies) was formed in 2013 to promote international, multidisciplinary collaborations to advance our understanding of the etiology and outcomes of kidney cancer. The Consortium is comprised of international investigators and clinicians who have ongoing or completed studies relating to kidney cancer. In its initial phase, the Consortium will undertake research projects that pool existing data across studies as well as developing other collaborative research projects.

158

Disfrute del sol con cuidado -- Cualquier persona puede padecer cáncer de piel  

Cancer.gov

Está bien pasar algún tiempo al aire libre, pero usted debe saber que las personas de piel más oscura –incluso muchos hispanos o latinos– tienen riesgo de padecer cáncer de piel. Siempre que pueda, evite exponerse al sol, especialmente entre las 10 a.m. y las 4 p.m., cuando los rayos del sol son más fuertes. Si trabaja o juega al aire libre, cúbrase y protéjase la piel con prendas de vestir, sombreros, lentes, filtros solares.

159

Pro/con debate: Is etomidate safe in hemodynamically unstable critically ill patients?  

PubMed Central

Etomidate is an induction agent known for its smooth intubating conditions and cardiovascular stability. Studies, however, have shown that a single dose of etomidate can result in a prolonged adrenal insufficiency. The impact of this in patients with sepsis has been a matter for debate. This review presents a pro/con case for using etomidate in hemodynamically unstable critically ill patients and provides guidance for alternative induction techniques and when the use of etomidate might be justified despite these concerns.

2012-01-01

160

Estudio fotométrico y espectroscópico de dos cúmulos abiertos jóvenes del disco con apariencia globular  

NASA Astrophysics Data System (ADS)

Se presentan y discuten resultados obtenidos en el CASLEO y en el Observatorio de Las Campanas de dos cúmulos abiertos compactos con apariencia globular: Westerlund1 (BH197), ubicado en dirección hacia el centro galáctico, y Westerlund2. A partir de espectroscopía CCD integrada de ambos e imágenes CCD en las bandas VI obtenidas para el primero de ellos, se derivan sus parámetros fundamentales y se examinan sus apariencias estructurales. Se encuentra que Westerlund1 es un cúmulo joven (7 ± 3 millones de años), ubicado sobre el plano galáctico a 1.0 ± 0.4 kpc del sol, en una región caracterizada por una absorción excepcionalmente elevada (Av~=13.0 mag), en tanto que Westerlund2 es también un cúmulo joven (4-6 millones de años) ubicado sobre el plano, en una región afectada por una absorción menor (Av~=5.7 mag). Desde el punto de vista estructural, Westerlund 1 se presenta como uno de los pocos cúmulos abiertos jóvenes de la Galaxia con apariencia tipicamente globular, en contraste con los cúmulos azules de las Nubes de Magallanes en los cuales la apariencia globular constituye un fenómeno común. Westerlund2, aunque menos rico en estrellas, puede también ser incluído dentro de esta interesante clase de objetos.

Piatti, A. E.; Clariá, J. J.; Bica, E.

161

Mound-ACT*DE*CON{sup SM} feasibility study. Phase 2: Final report  

SciTech Connect

A portion of the abandoned Miami-Erie Canal paralleling the Greater Miami River receives the runoff and storm-water discharge from Mound Laboratory. In 1969, a low-level plutonium leak contaminated sediment as far away as 1.5 mi from the Mound site along the old canal system. An estimated one million cubic feet of sediment requires remediation. The technology being evaluated for the remediation of the low-level plutonium-238 contamination of the sediment involves two processes: washing the sediments with ACT*DE*CON{sup SM} solution to dissolve the contaminant, followed by extraction of the solution and processing with the MAG*SEP{sup SM} process to concentrate the contaminant and allow reuse of the ACT*DE*CON{sup SM} solution. The processes are being optimized for pilot-scale and field demonstration. Phase 2 of the project primarily involved identification at the laboratory scale of the optimal ACT*DE*CON{sup SM} formulation, identification of the ion-exchanger and MAG*SEP{sup SM} particles, verification of the plutonium mobility in the treated soil, and evaluation of other process parameters according to a series of tasks.

NONE

1994-12-01

162

Con_A-carbone nanotube conjugate with short wave near-infrared laser ablation for tumor therapy  

NASA Astrophysics Data System (ADS)

Using the characteristics of T cell mitogen called lectin protein from the jack-beam Canavalia ensiformis Concanavalin A (Con_A) with dual activities, cytotoxicity and immunomodulation, we have shown it has a therapeutic effect on hepatoma. Injection of Con_A can eradicate the established malign tumor, because Con_A can induce tumor cell autophagic, cell-programmed death, as well as activate the effector T cells. Combined, in this paper, with the absorption exceeding the Carbon NanoTube (CNT) band-gap (?bg=~1/CNT diameter) with an active short wave near-infrared (SWIR) (1.2~1.5 micron wavelengths), which happened to be translucent to the irradiation upon animal skin, similar to that used in hospital fingertip-clamped Pulse Oxymetry. Once the Con_ACNT is guided to hepatoma cells, it is bonded and internalized into the mitochondria (MC) compartment, the cellular energy factory. Con_A has the higher specificity for tumor cells useful for targeting because of the abnormal glycosylation on tumor cells. When CNT hitch hike with Con_A, they can t together like a laser-denotable chemical missile surgically targeting at the tumor cells precisely by Con_A-guidance. We switch on SWIR laser, when the Con_A-CNT conjugated complex has been bonded and internalized to MC of malign cells and already commenced cellular programmed death. Thus, it might appear to casual readers that we have initiated an overkill, chemical drugged autophage followed with physical laser ablation, but what if we can eradicate hepatoma totally if no blue print is left behind inadvertently in case of a partial failure. We conclude that using Con_A-CNT conjugated complex targeting specifically at malign tumor cells is a novel targeted-laser-radiation therapy for tumors in mice.

Lei, Huan-Yao; Peng, Ching-An; Tang, Ming-Jer; Reindhart, Kit; Szu, Harold H.

2009-04-01

163

Correlación entre la estructura de bandas y las propiedades físicas de óxidos cerámicos de estructura perovskita con metales de transición (I): Propiedades de conducción electrónica  

Microsoft Academic Search

En este artículo se revisa los principales modelos teóricos, que pretenden dar una explicación sobre las propiedades de con- ducción electrónica de óxidos cerámicos con estructura perovskita, que incluyen en la posición B metales de transición del primer período (Fe, Co, Ni, Mn), en conexión con su estructura de bandas y el carácter de sus electrones más externos, así como

L. SÁNCHEZ; J. R. JURADO

164

Effect of GonaCon™ vaccine on black-tailed prairie dogs: immune response and health effects.  

PubMed

Management of prairie dogs in the past has included poisoning, fumigants, barriers, and relocation. Because of the diverse attitudes related to prairie dog management, nonlethal methods that allow the existence of prairie dogs but help minimize damage related to population growth need to be developed. GonaCon™ is an immunocontraceptive vaccine that elicits antibodies to native GnRH; this prevents the secretion of reproductive hormones necessary for sperm and oocyte production. Prairie dogs were vaccinated with 0.1, 0.2, or 0.4 mL of the GonaCon™ emulsion intramuscularly in the upper thigh containing 100, 200, or 400 ?g GnRH conjugate, respectively. Control animals were vaccinated with 0.4 mL saline emulsion in the upper thigh. Blood samples (?1 mL) were taken from the femoral vein once pretreatment and at 1, 2, 3, 4, 6, and 15 months post-vaccination. Age (adult or juvenile) did not affect immune response to GonaCon™. Antibody titers were higher in the 200 and 400 ?L GonaCon™ groups than in the 100 ?L group, and there was no difference between the 200 and 400 ?L GonaCon™ groups. No adverse effects of GonaCon™ were noted on weight or blood chemistry parameters during the study. GonaCon™ will likely contracept prairie dogs for ?1 year in the field using either 200 or 400 ?g conjugate. GonaCon™ could be incorporated into management plans to help maintain prairie dog populations while reducing habitat degradation due to overpopulation. PMID:21055491

Yoder, Christi A; Miller, Lowell A

2010-12-16

165

Extenso estudio realizado en muchos centros demuestra que hay una precisión comparable de la colonoscopia virtual con la colonoscopia convencional  

Cancer.gov

Según los resultados del Estudio Nacional de Colografía de Tomografía Computarizada de la American College of Radiology Imaging Network, ACRIN, la colografía de tomografía computarizada, también conocida como colonoscopia virtual, es comparable a la colonoscopia convencional en su capacidad para detectar con precisión cáncer y pólipos precancerosos y podría servir como examen selectivo inicial de detección de cáncer colorrectal. La colonoscopia convencional usa un tubo largo, flexible, con cámara, para ver el revestimiento del colon.

166

Nitrogen-detected CAN and CON experiments as alternative experiments for main chain NMR resonance assignments  

PubMed Central

Heteronuclear direct-detection experiments, which utilize the slower relaxation properties of low ? nuclei, such as 13C have recently been proposed for sequence-specific assignment and structural analyses of large, unstructured, and/or paramagnetic proteins. Here we present two novel 15N direct-detection experiments. The CAN experiment sequentially connects amide 15N resonances using 13C? chemical shift matching, and the CON experiment connects the preceding 13C? nuclei. When starting from the same carbon polarization, the intensities of nitrogen signals detected in the CAN or CON experiments would be expected four times lower than those of carbon resonances observed in the corresponding 13C-detecting experiment, NCA-DIPAP or NCO-IPAP (Bermel et al. 2006b; Takeuchi et al. 2008). However, the disadvantage due to the lower ? is counteracted by the slower 15N transverse relaxation during detection, the possibility for more efficient decoupling in both dimensions, and relaxation optimized properties of the pulse sequences. As a result, the median S/N in the 15N observe CAN experiment is 16% higher than in the 13C observe NCA-DIPAP experiment. In addition, significantly higher sensitivity was observed for those residues that are hard to detect in the NCA-DIPAP experiment, such as Gly, Ser and residues with high-field C? resonances. Both CAN and CON experiments are able to detect Pro resonances that would not be observed in conventional proton-detected experiments. In addition, those experiments are free from problems of incomplete deuterium-to-proton back exchange in amide positions of perdeuterated proteins expressed in D2O. Thus, these features and the superior resolution of 15N-detected experiments provide an attractive alternative for main chain assignments. The experiments are demonstrated with the small model protein GB1 at conditions simulating a 150 kDa protein, and the 52 kDa glutathione S-transferase dimer, GST.

Takeuchi, Koh; Heffron, Gregory; Sun, Zhen-Yu J.; Frueh, Dominique P.

2010-01-01

167

Zebrafish con/disp1 reveals multiple spatiotemporal requirements for Hedgehog-signaling in craniofacial development  

PubMed Central

Background The vertebrate head skeleton is derived largely from cranial neural crest cells (CNCC). Genetic studies in zebrafish and mice have established that the Hedgehog (Hh)-signaling pathway plays a critical role in craniofacial development, partly due to the pathway's role in CNCC development. Disruption of the Hh-signaling pathway in humans can lead to the spectral disorder of Holoprosencephaly (HPE), which is often characterized by a variety of craniofacial defects including midline facial clefting and cyclopia [1,2]. Previous work has uncovered a role for Hh-signaling in zebrafish dorsal neurocranium patterning and chondrogenesis, however Hh-signaling mutants have not been described with respect to the ventral pharyngeal arch (PA) skeleton. Lipid-modified Hh-ligands require the transmembrane-spanning receptor Dispatched 1 (Disp1) for proper secretion from Hh-synthesizing cells to the extracellular field where they act on target cells. Here we study chameleon mutants, lacking a functional disp1(con/disp1). Results con/disp1 mutants display reduced and dysmorphic mandibular and hyoid arch cartilages and lack all ceratobranchial cartilage elements. CNCC specification and migration into the PA primorida occurs normally in con/disp1 mutants, however disp1 is necessary for post-migratory CNCC patterning and differentiation. We show that disp1 is required for post-migratory CNCC to become properly patterned within the first arch, while the gene is dispensable for CNCC condensation and patterning in more posterior arches. Upon residing in well-formed pharyngeal epithelium, neural crest condensations in the posterior PA fail to maintain expression of two transcription factors essential for chondrogenesis, sox9a and dlx2a, yet continue to robustly express other neural crest markers. Histology reveals that posterior arch residing-CNCC differentiate into fibrous-connective tissue, rather than becoming chondrocytes. Treatments with Cyclopamine, to inhibit Hh-signaling at different developmental stages, show that Hh-signaling is required during gastrulation for normal patterning of CNCC in the first PA, and then during the late pharyngula stage, to promote CNCC chondrogenesis within the posterior arches. Further, loss of disp1 disrupted normal expression of bapx1 and gdf5, markers of jaw joint patterning, thus resulting in jaw joint defects in con/disp1 mutant animals. Conclusion This study reveals novel requirements for Hh-signaling in the zebrafish PA skeleton and highlights the functional diversity and differential sensitivity of craniofacial tissues to Hh-signaling throughout the face, a finding that may help to explain the spectrum of human facial phenotypes characteristic of HPE.

2009-01-01

168

A theoretical study of the rovibronic spectra of CNO, NCO and CON  

NASA Astrophysics Data System (ADS)

Variational calculations of the rovibronic spectra of the three isomers NCO, CNO and CON in their X2? electronic ground state have been performed. The calculations were done in an attempt to calibrate a computed ab initio potential, based on the complete active space second-order perturbation theory (CASPT2) approach, against experimental vibrational data. Comparison with experiment for the NCO isomer indicates that the theoretical potential is a little flat. It is shown that minor changes to the quadratic force field parameters lead to a substantial improvement in the accuracy.

Persson, B. Joakim; Roos, Björn O.; Carter, Stuart

169

Reliability of knee extension and flexion measurements using the Con-Trex isokinetic dynamometer.  

PubMed

The aim of this study was to evaluate the reliability of isokinetic and isometric assessments of the knee extensor and the flexor muscle function using the Con-Trex isokinetic dynamometer. Thirty healthy subjects (15 males, 15 females) were tested and retested 7 days later for maximal strength (isokinetic peak torque, work, power and angle of peak torque as well as isometric maximal voluntary contraction torque and rate of torque development) and fatigue (per cent loss and linear slope of torque and work across a series of 20 contractions). For both the knee extensor and the flexor muscle groups, all strength data - except angle of peak torque - demonstrated moderate-to-high reliability, with intraclass correlation coefficients (ICC) higher than 0.86. The highest reliability was observed for concentric peak torque of the knee extensor muscles (ICC = 0.99). Test-retest reliability of fatigue variables was moderate for the knee extensor (ICC range 0.84-0.89) and insufficient-to-moderate for the knee flexor muscles (ICC range 0.78-0.81). The more reliable index of muscle fatigue was the linear slope of the decline in work output. These findings establish the reliability of isokinetic and isometric measurements using the Con-Trex machine. PMID:17944656

Maffiuletti, Nicola A; Bizzini, Mario; Desbrosses, Kevin; Babault, Nicolas; Munzinger, Urs

2007-11-01

170

Preparation of stimulus responsive multiple emulsions by membrane emulsification using con a as biochemical sensor.  

PubMed

In this work, a novel strategy for the controlled fabrication of biomolecular stimulus responsive water-in-oil-in-water (W/O/W) multiple emulsion using the membrane emulsification process was investigated. The emulsions interface was functionalized with a biomolecule able to function as a receptor for a target compound. The interaction between the biomolecular receptor and target stimulus activated the release of bioactive molecules contained within the structured emulsion. A glucose sensitive emulsion was investigated as a model study case. Concanavalin A (Con A) was used as the biomolecular glucose sensor. Various physicochemical strategies for stimulus responsive materials formulation are available in literature, but the preparation of biomolecule-responsive emulsions has been explored for the first time in this paper. The development of novel drug delivery systems requires advanced and highly precise techniques to obtain their particular properties and targeting requirements. The present study has proven the flexibility and suitability of membrane emulsification for the preparation of stable and functional multiple emulsions containing Con A as interfacial biomolecular receptor able to activate the release of a bioactive molecule as a consequence of interaction with the glucose target molecule. The influence of emulsion interfacial composition and membrane emulsification operating conditions on droplets stability and functional properties have been investigated. The release of the bioactive molecule as a function of glucose stimulus and its concentration has been demonstrated. PMID:21404264

Piacentini, Emma; Drioli, Enrico; Giorno, Lidietta

2011-04-01

171

Antiviral and antitumor effects of a human interferon analog, IFN-alpha Con 1, assessed in hamsters.  

PubMed

An analog of human alpha-and beta-interferons (IFN-alpha and -beta) (generally consisting of the most frequently observed amino acid residue at each position in the molecule) has pronounced antiviral and antiproliferative activity in human and hamster cells. Intraperitoneal administration of this analog (designated IFN-alpha Con 1) to hamsters at 10(6) to 10(8) U/kg resulted in proportional increases in plasma concentrations through 6 h of monitoring. IFN-alpha Con 1 at these doses effectively limited encephalomyocarditis virus (EMCV) infections of hamsters. A natural human IFN-alpha preparation was also active against virus infections in hamsters. The antitumor activity of IFN-alpha Con 1 and natural human IFN-alpha was assessed in hamsters inoculated with lethal TBD932 lymphosarcoma. Various IFN treatment schedules resulted in prolonged survival following tumor challenge. IFN-alpha Con 1 administered at 10(5) to 10(6) U/hamster daily for 9-12 days following tumor challenge was effective in delaying tumor development, as was a natural human IFN-alpha preparation. The efficacies of combined IFN and cyclophosphamide therapies were determined. Unlike the natural human subtype IFN-alpha A, IFN-alpha Con 1 did not diminish the efficacy of cyclophosphamide (2.5 mg/hamster for 3 days) against the lymphosarcoma. However, an ineffective dose of cyclophosphamide (0.05 mg/hamster for 3 days) when combined with IFN-alpha Con 1 treatment showed enhanced antitumor activity. Combinations of cimetidine (16 mg/hamster for 4 days) and IFN-alpha Con 1 treatment did not prolong survival in this model system. PMID:3021874

Altrock, B W; Fagin, K D; Hockman, H R; Fish, E N; Goldstein, L; Chang, D; Duker, K; Stebbing, N

1986-08-01

172

Multi-wall carbon nanotube-polyaniline biosensor based on lectin-carbohydrate affinity for ultrasensitive detection of Con A.  

PubMed

In this paper, a novel method for detecting concanavalin A (Con A) was developed based on lectin-carbohydrate biospecific interactions. Multi-wall carbon nanotube-polyaniline (MWNT-PANI) nanocomposites, synthesized by in situ polymerization, were chosen to immobilize d-glucose through the Schiff-base reaction. The immobilized D-glucose showed high binding sensitivity and excellent selectivity to its target lectin, Con A. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), transmission electron microscopy (TEM) and atomic force microscopy (AFM) were applied to characterize the assembly process of the modified electrode. Due to the high affinity of Con A for D-glucose and high stability of the propounded sensing platform, the fabricated biosensor achieved ultrasensitive detection of Con A with good sensitivity, acceptable reproducibility and stability. The changes of response current were proportional to the Con A concentrations from 3.3 pM to 9.3 nM, with a detection limit of 1.0 pM. Therefore, the combination of MWNT-PANI nanocomposites and the special binding force between lectin and carbohydrate provides an efficient and promising platform for the fabrication of bioelectrochemical devices. PMID:22387041

Hu, Fangxin; Chen, Shihong; Wang, Chengyan; Yuan, Ruo; Xiang, Yun; Wang, Cun

2012-04-15

173

Pros and cons of healthcare information technology implementation: the pros win.  

PubMed

Countless studies and investigations have been performed siding either for or against the implementation of technology in the healthcare setting. This article presents both sides of this debate, with an obvious conclusion that the pros of this debate win. The practice of information technology in the medical domain lags behind its knowledge and discovery by at least 7 years. The key to closing this gap is to show, through various studies, how information technology systems provide decision support to users at the point in time when decisions are needed. What the reader will obtain from this article is that the pros for information technology implementation in healthcare settings weigh much more and have a greater effect than the cons. PMID:17149039

Maffei, Roxana

2006-01-01

174

A new look at the infrared spectrum of the weakly bound CO-N2 complex.  

PubMed

A broad-band (2135-2165 cm(-1)) infrared spectrum of the CO-N2 van der Waals complex is obtained, using a tunable quantum cascade laser to probe a pulsed supersonic expansion from a slit jet source. Analysis of the spectrum results in the characterization of four new 'stacks' of rotational levels for CO-orthoN2 (all in the v(CO) = 1 upper state) and five new stacks for CO-paraN2 (three in the upper state and two in the vCO = 0 lower state). This considerably expands our knowledge of a rather fundamental weakly bound complex and should lead to improved determinations of the intermolecular forces governing interactions between the carbon monoxide and nitrogen molecules. PMID:24090526

Rezaei, Mojtaba; Michaelian, K H; Moazzen-Ahmadi, N; McKellar, A R W

2013-12-19

175

Nonlinear optical effects in amorphous-like SiCON films  

NASA Astrophysics Data System (ADS)

We have found that IR bicolor coherent poling of the SiCON films with the pulsed IR 200 ps laser pulses causes sufficiently high values of the second-order optical susceptibilities. The dependence of the second-order susceptibility versus the fundamental power density as well as versus the time of the optical poling and writing/fundamental beam ratios indicate on substantial role of the N / C ratio. Maximally achieved value of the second-order optical susceptibility was equal to about 9 pm / V. In the case of our films we have shown that optimal incident angle of the writing beam with respect to the sample's surface for the achievement of optimal grating is equal to about 67°. Optimal ratio between the fundamental and writing beams was equal about 30. The grating is destroyed during the 10 min after the interruption of optical treatment.

Kityk, I. V.; Mandracci, P.

2005-06-01

176

Con-A-CNT (Carbon Nanotube) Conjugate with Short Wave Near-Infrared (SWIR) Laser Ablation for Tumor Therapy.  

National Technical Information Service (NTIS)

Using the characteristics of T cell mitogen called lectin protein from the jack-bean Canavalia ensiformis Concanavalin A (Con-A) with dual activities, cytotoxicity and immunomodulation, we have shown it has a therapeutic effect on hepatoma. Injection of C...

C. Peng H. Lei H. Szu M. Tang

2010-01-01

177

Comparación de resultados del método de clasificación de órbitas por análisis de frecuencias con el método de exponentes de Lyapunov  

NASA Astrophysics Data System (ADS)

Hemos realizado extensas comparaciones del método de análisis de frecuencias con el de exponentes de Lyapunov. El primero resulta claramente superior por las siguientes razones: 1) permite distinguir distintos tipos de órbitas y no sólo si son regulares o caóticas 2) es mucho más veloz requiriendo mucho menos tiempo de cómputo. La concordancia de resultados es, en general, buena y se discuten algunas discrepancias.

Carpintero, D. D.; Muzzio, J. C.; Wachlin, F. C.

178

JAPÓN: EVOLUCIÓN DE LA POLÍTICA DE SEGURIDAD EN EL MARCO DE LA ALIANZA ESTRATÉGICA CON LOS EE.UU  

Microsoft Academic Search

Japón quedó devastado al concluir la Segunda Guerra Mundial. En ese entonces, una de las vías que encontró para salir de la crisis en que había quedado inmerso, fue dedicarse por completo a la recuperación económica. Para ello, en 1951, firma el Tratado de Seguridad con los EE.UU., a partir de la Doctrina Yoshida, que consistía, en la concentración de

Yunyslka González Vaguéz

2009-01-01

179

In vivo normobaric oxygen exposure depresses spleen cell in vitro Con A response. Effects of 2-mercaptoethanol and peritoneal cells.  

PubMed Central

Normobaric O2 exposure decreased spleen cell (SC) response to T cell mitogen Con A. 3H-TdR incorporation of SC from O2 exposed mice (O2SC) compared to those of control mice (Air SC) decreased significantly after 72 and 87 h O2 exposure. The dose response kinetics to Con A were identical in O2SC or Air SC. Increasing SC number did not restore the response to Con A and the depressed hyperoxic effect was not related to suppressor cells in the spleen of O2 exposed mice. Response of O2SC to Con A was restored by the thiol compound 2-mercaptoethanol (2-ME), and the degree of restoration by 2-ME, was inversely proportional to the depressed response. Addition of intact peritoneal cells (PC) induced restoration within the same range as 2-ME. Restoration of the mitogenic response by 2-ME involved antioxidant properties and suggested that macrophages were functionally injured by O2 exposure. In cases where mitogen response was highly depressed, restoration was only partial; in these conditions in vivo O2 injury probably involved both macrophages and splenic T cells. The mechanisms of O2 toxicity have been discussed in terms of free radical generation under hyperoxic conditions.

Gougerot-Pocidalo, M A; Fay, M; Pocidalo, J J

1984-01-01

180

Treatment of plutonium contaminated soil/sediment from the Mound site using the ACT*DE*CON{sup SM} process  

SciTech Connect

The removal and/or treatment of contaminated soil is a major problem facing the US DOE. The EG&G Mound Applied Technologies site in Miamisburg, Ohio, has an estimated 1.5 million cubic feet of soils from past disposal and waste burial practices awaiting remediation from plutonium contamination. This amount includes sediment from the Miami-Erie Canal that was contaminated in 1969 following a pipe- rupture accident. Conventional soil washing techniques that use particle separation would generate too large a waste volume to be economically feasible. Therefore, innovative technologies are needed for the cleanup. The ACT*DE*CON process was developed by SELENTEC for washing soils to selectively dissolve and remove heavy metals and radionuclides. ACT*DE*CON chemically dissolves and removes heavy metals and radionuclides from soils and sediments into an aqueous medium. The ACT*DE*CON process uses oxidative carbonate/chelant chemistry to dissolve the contaminant from the sediment and hold the contaminant in solution. The objective of recent work was to document the proves conditions necessary to achieve the Mound-site and regulatory-cleanup goals using the ACT*DE*CON technology.

Negri, M.C. [Argonne National Lab., IL (United States); Swift, N.A. [SELENTEC, Atlanta, GA (United States); North, J.P. [Rust Remedial Service, Inc., Anderson, SC (United States)

1996-10-01

181

[Emission spectrum of liquid CO-N2 mixture at shock compression].  

PubMed

Driving a copper projectile to impact a cryo-target made of aluminous alloy at the speed of 2.21 km x s(-1) with a two stage light gas gun, a proper one dimensional shockwave with a speed of 18.76 km x s(-1) was generated and directly acted on a uniform liquid in target, which was condensed by proportional gaseous carbon monoxide and nitrogen. At the measurement of Hugoniots, the full linear spectrum entirely dissociated with the plasma under the shock pressure of 33.5 GPa was caught by the use of intensified charge coupled device and accurate spectrographic technology. From the analysis of the spectrum, the authors know that the transient spectrograph with six channels can be used to measure and record the course of shock compression-irradiancy reliably, and the emitted spectral lines of shock compressed products indicated that the thermal dissociation and phase transition had occurred in homogeneous liquid of CO-N2. Furthermore, comparing the spectral intensity of lower central wavelength with that of higher, the fact of stronger intensity of 488 nm also validates that changes from "optic thin" to "optic thick" exist indeed in dense hydrocarbon liquid acted on by shock pressure. PMID:19626860

Sun, Yue; Yi, Peng-Fei; Chen, Xian-Meng; Liu, Fu-Sheng; Zhang, Ming-Jian; Zheng, Xue-Ping; Xue, Xue-Dong

2009-04-01

182

Pro/con ethics debate: is nonheart-beating organ donation ethically acceptable?  

PubMed

This pro/con debate explores the ethical issues surrounding nonheart-beating organ donation (NHBD), a source of considerable controversy. It is estimated that NHBD can increase the number of organs available for transplant by 25% at a time of great need. However, should NHBD be ethically acceptable? In support of NHBD, it may be acceptable practice if there is a separation of the rationale to withdraw life support/to withhold cardiopulmonary resuscitation from the decision to recover organs, if no conflicts of interest exist, if a waiting time precluding spontaneous return of circulation is included, and if NHBD conforms to a standardized protocol. Against NHBD, there are questions regarding the ambiguity and cultural perspectives of death, regarding whether a separation of rationale between withdrawal and donation is sufficient to preclude conflicts of interest, and regarding whether variable protocols arise that subordinate the patient to the goal of donation. Such concerns suggest NHBD may damage the trust in patient-physician relationships and may adversely affect organ donation rates. PMID:12133176

Whetstine, Leslie; Bowman, Kerry; Hawryluck, Laura

2002-06-01

183

Pros and cons of liver transplantation in human immunodeficiency virus infected recipients  

PubMed Central

Before the introduction of combined highly active antiretroviral therapy, a positive human immunodeficiency virus (HIV) serological status represented an absolute contraindication for solid organ transplant (SOT). The advent of highly effective combined antiretroviral therapy in 1996 largely contributed to the increased demand for SOT in HIV-positive individuals due to increased patients’ life expectancy associated with the increasing prevalence of end-stage liver disease (ESLD). Nowadays, liver failure represents a frequent cause of mortality in the HIV-infected population mainly due to coinfection with hepatitis viruses sharing the same way of transmission. Thus, liver transplantation (LT) represents a reasonable approach in HIV patients with stable infection and ESLD. Available data presently supports with good evidence the practice of LT in the HIV-positive population. Thus, the issue is no longer “whether it is correct to transplant HIV-infected patients”, but “who are the patients who can be safely transplanted” and “when is the best time to perform LT”. Indeed, the benefits of LT in HIV-infected patients, especially in terms of mid- and long-term patient and graft survivals, are strictly related to the patients’ selection and to the correct timing for transplantation, especially when hepatitis C virus coinfection is present. Aim of this article is to review the pros and cons of LT in the cohort of HIV infected recipients.

Baccarani, Umberto; Righi, Elda; Adani, Gian Luigi; Lorenzin, Dario; Pasqualucci, Alberto; Bassetti, Matteo; Risaliti, Andrea

2014-01-01

184

Ground and lowest-lying electronic states of CoN. A multiconfigurational study.  

PubMed

The lowest-lying X1Sigma+, a3Phi, b3II, c5Delta, A1Phi, and B1II electronic states of CoN have been investigated at the ab initio MRCI and MS-CASPT2 levels, with extended atomic basis sets and inclusion of scalar relativistic effects. Among the singlet states, the A1Phi and B1II states have been described for the first time. Potential energy curves, excitation energies, spectroscopic constants, and bonding character for all states are reported. Comparison with other early transition-metal nitrides (ScN, TiN, VN, and CrN), isoelectronic (NiC) and isovalent (RhN and IrN) species has been made, besides analyzing the B1II <=> X1+ electronic transition in terms of Franck-Condon factors, Einstein coefficients, and radiative lifetimes. At both levels of theory, the following energetic order has been obtained: X1Sigma+, a3Phi, b3II, c5Delta, A1Phi, and B1II, with good agreement with experimental results. In contrast, previous DFT and MRCI calculations predicted the ground state to be the 5Delta state. PMID:17181357

Gobbo, João Paulo; Borin, Antonio Carlos

2006-12-28

185

Structural and magnetic properties of N doped Fe_mCon superlattices: First principles calculations.  

NASA Astrophysics Data System (ADS)

Magnetic alloys and multilayers have been widely investigated because of their potential for magnetic device applications. In this, materials exhibiting high magnetization as well as good soft magnetic properties are desirable. We investigated the magnetic and structural properties of Fe_mCon superlattices with various compositions via first principles local density full potential linearized augmented plane wave (FLAPW) method^(1) calculations. For the 25% Co composition which showed the maximum magnetic moments, we inserted N atoms to make (Fe_3Co)_4N_2, in order to examine the possible magnetic enhancement by N, which has drawn much attention since the first report (in 1972) of a giant magnetic moment for the quasi-stable ?-Fe_16N_2. The structural optimization was fully accomplished by total energy and atomic force calculations. Despite the lattice expansion due to the N insertion, the magnetic moment of (Fe_3Co)_4N2 was found to be reduced from the value of the Fe_3Co superlattice by the strong hybridization of N with Fe and Co. (1) E. Wimmer, H. Krakauer, M. Weinert and A. J. Freeman, Phys. Rev. B 24, 864 (1981).

Kim, Miyoung; Freeman, A. J.

2001-03-01

186

Estereotipos Sexuales y su Relaci?n con Conductas Sexuales Riesgosas1,2,3  

PubMed Central

Resumen Los estereotipos sexuales son creencias generalmente aceptadas y poco cuestionadas que podrían contribuir a cómo los hombres y las mujeres debemos expresar nuestra sexualidad. Los objetivos de este estudio eran identificar cuántos hombres y mujeres heterosexuales en Puerto Rico endosaban ciertos estereotipos acerca de la sexualidad masculina y femenina y explorar la relación entre el endoso de estos estereotipos sexuales y las actitudes hacia el condón masculino y su uso en relaciones sexuales vaginales Llevamos a cabo un estudio descriptivo-correlacional mediante el cual le administramos dos escalas, una sobre sexualidad masculina y otra sobre sexualidad femenina a un grupo de 429 personas heterosexuales. Encontramos que los hombres endosaron estereotipos sexuales masculinos y femeninos más que las mujeres y que estos tienden a tener una visión más conservadora respecto a la sexualidad femenina que la que tienen sobre su propia sexualidad. Las mujeres, por otra parte, tienden a ver su propia sexualidad y la sexualidad masculina en términos menos estereotipados y más equitativos. También encontramos que a mayor endoso de creencias tradicionales sobre la sexualidad masculina y femenina, peor la actitud hacia el uso del condón masculino. Sin embargo, el endosar estereotipos sexuales masculinos y/o femeninos no se relacionó con el uso del condón. Estos hallazgos contradicen la literatura que sugiere que estos estereotipos sexuales y de género resultan en conductas sexuales de alto riesgo, lo cual tiene implicaciones importantes para el desarrollo e implementación de programas de prevención.

Perez-Jimenez, David; Orengo-Aguayo, Rosaura E.

2012-01-01

187

Thromboprophylaxis in carriers of antiphospholipid antibodies (APL) without previous thrombosis: "Pros" and "Cons".  

PubMed

The presence of anti-phospholipid (aPL) is necessary but not sufficient to induce a thrombotic event. The "second hit" hypothesis suggested that an additional trigger may be needed to develop a vascular event in aPL carriers. In this article, pro and con of primary thromboprophylaxis in aPL carriers is deeply discussed, concluding that univocal data are not available, due to conflicting results of available clinical trials. However, in clinical practice the primary thromboprophylaxis is not indicated in all unselected asymptomatic aPL carriers, and the best strategy begin with the assessment of the peculiar risk profile of the subject. Thus, it is mandatory to eliminate modifiable prothrombotic risk factors (i.e. smoking, oral contraceptive), to treat the irreversible risk factors (i.e. hypertension, diabetes) and to introduce an aggressive prophylaxis with subcutaneous LMWH in high-risk situations (i.e. surgical procedures with prolonged immobilization). A different evaluation should be addressed to aPL carriers with a concomitant autoimmune disease that are considered as an additional pro-thrombotic risk factor. Similarly, concomitant positivity for more than one anti-phospholipid test confer a stronger risk of developing the thrombotic manifestations. Specific trials with larger cohorts of patients are needed to better clarify this issue. PMID:22036825

Ceccarelli, Fulvia; Chighizola, Cecilia; Finazzi, Guido; Meroni, Pier Luigi; Valesini, Guido

2012-06-01

188

Long-Acting Injectable Antipsychotics for First-Episode Schizophrenia: The Pros and Cons  

PubMed Central

Clinical and psychosocial deterioration associated with schizophrenia occurs within the first few years following the onset of the illness. Therefore, to improve the long-term prognosis, it is important to provide schizophrenia patients with intensive treatment following their first episode. Relapse is highly associated with partial medication adherence or nonadherence in patients with first-episode schizophrenia. Recent studies suggest that long-acting injectable (LAI) antipsychotics compared with oral antipsychotics are more effective for medication adherence and relapse prevention. Moreover, some clinical guidelines for the treatment of schizophrenia suggested that LAI antipsychotics should be considered when patients are nonadherent “at any stage.” Decreased compliance is a common cause of relapse during the initial stages of the disease. Therefore, LAI antipsychotics should be highly considered when treating patients with first-episode schizophrenia. In the present paper, clinical trial data and current guidelines on the use of LAI antipsychotics for first-episode schizophrenia are discussed as well as the pros and cons of this treatment option.

Kim, Borah; Lee, Sang-Hyuk; Yang, Yen Kuang; Park, Jong-Il; Chung, Young-Chul

2012-01-01

189

Strains arising by seismic events in the SIRGAS-CON network region  

NASA Astrophysics Data System (ADS)

In this study, we investigate surface strains related to seismic events and their relationship with pre- and post-seismic events in Latin America, by analyzing the variation of estimated earth coordinates supplied by a geodetic network called SIRGAS-CON. Based on data provided by the USGS for the period 2000-2011, and after the Global Congruency test, we selected four events associated with unstable geodetic network points. The resulting strains were estimated based on the finite element method using networks of points considered unstable connected to neighboring points using the Delaunay triangulation. It was possible to determine the strains along with the resulting guidelines for pre- and post-seismic, considering each triangular lattice formed for analysis as a homogeneous solid body. The calculation of strains and verification of the results allowed to analyze the interactions between lithospheric plates from the contraction and extension directions between points located in different plates. Despite the association between seismic events and the strain of geodetic network, some events of magnitude greater than 5.8 Mw were excluded because it does not show (provide) the surface strain, which is located at great depths. It was confirmed that events of greater magnitude provide increased surface strain rate when compared with other similar depths.

Marotta, G. S.; França, G. S.; Monico, J. F. G.; Fuck, R. A.

2013-03-01

190

Vibrational relaxation of CO(n = 1) in collisions with He  

SciTech Connect

We present a full ab initio study of vibrational relaxation of CO(n = 1) in collisions with /sup 3/He and /sup 4/He. The vibrational coordinate dependence of the interaction potential is calculated directly. Dynamical calculations are performed within the IOS and the CS approximation. The IOS cross sections agree very well with the corresponding CS results for both He isotopes, however, the ratio IOS/CS shows a different energy behavior for /sup 3/He and /sup 4/He, respectively. The CS rates for /sup 3/He agree extremely well with the experimental relaxation rates. Although only the reduced mass is changed for /sup 4/He the agreement with experiment is less favorable in this case. It is explicitly demonstrated that the often used procedure to extract the vibrational coordinate dependence of the interaction potential from a dumbbell fit of the rigid-rotor surface is wrong for He--CO. For /sup 3/He the corresponding cross sections are 3--10 times smaller than those obtained form the ab initio potential although the vibrationally elastic parts of the interaction potential are identical.

Schinke, R.; Diercksen, G.H.F.

1985-11-01

191

NIVEL DE CONOCIMIENTOS SOBRE METODOS ANTICONCEPTIVOS PREVIOS AL INICIO DE LAS RELACIONES SEXUALES Y SU COMPARACION CON EL NIVEL DE CONOCIMIENTOS ACTUALES EN ESTUDIANTES DE MEDICINA  

Microsoft Academic Search

RESUMEN: Introducción: Con entrenamiento adecuado, los estudiantes de medicina pueden convertirse en lí- deres de opinión con futura injerencia sobre las políticas de salud, así como ayudar al público a en- tender las consecuencias de los embarazos indeseados y del aborto. El objetivo del presente estudio ha sido examinar el nivel de conocimientos sobre métodos anticonceptivos (MAC) previos al inicio

Guillermo Horacio; Cáceres Pallavidino; Echevarría Avellaneda; Domingo José Pomares

192

A functioning black adenoma of the adrenal cortex: A clinico-pathological entity  

PubMed Central

A 25-year-old woman is described who had suspected hyperfunction of the adrenal cortex. She complained of fatiguability, excessive hair growth, and attacks of swelling of the face, hands, and ankles. Moreover she had a `moon face', hypertension, a `buffalo hump', and livid striae of the loins and hypogastrium. Adrenal function tests yielded values which could not be clearly interpreted. Operation showed a `black adenoma' of the adrenal cortex on the right side. As far as it is known this is the first published case of this extremely rare lesion which was operated upon and caused nearly complete remission of the endocrine disturbance. Images

Visser, J. W.; Boeijinga, J. K.; Meer, C. V. D.

1974-01-01

193

[Clinico-psychologic studies on the problem of functional psychotic deterioration in schizophrenia].  

PubMed

Our concept of the functional-psychotic mental deterioration of schizophrenia approximately characterizes the same point of view as Kraepelin's terminus "Dementia praecox". The first result of our psychological examination on 225 schizophrenic persons with defect psychotic symptoms was the statement of the deficit in achievement between the former school education (average IQ of the school-type) and the results of examination of intelligence during our research. The functional-psychotic mental deterioration as well appears as a decrease of memory and psychomotoric speed deficiency, furthermore as mental deconcentration and increase of psychoorganic signs in the Rorschach-Test. The psychometric results of this research were statisticly significant. PMID:3983289

Kohlmann-Joss, M; Kohlmann, T

1985-01-01

194

Extending Workflow Management for Knowledge Discovery in Clinico-Genomic Data  

Microsoft Academic Search

Recent advances in research methods and technologies have resulted in an explosion of information and knowledge about cancers and their treatment. Knowledge Discovery (KD) is a key technique for dealing with this massive amount of data and the challenges of managing the steadily growing amount of available knowledge. In this paper, we present the ACGT integrated project, which is to

Stefan RÜPING; Stelios SFAKIANAKIS; Manolis TSIKNAKIS

195

Bacterial Keratitis: Perspective on Epidemiology, Clinico-Pathogenesis, Diagnosis and Treatment  

PubMed Central

Bacterial keratitis is an acute or chronic, transient or recurrent infection of the cornea with varying predilection for anatomical and topographical parts of the cornea like marginal or central. It is a potentially sight-threatening corneal infection in humans that is generally found in eyes with predisposing elements, the most common of which is contact lens wear. The epidemiological data reveals the universal occurrence of this disease. With advances in the understanding of its pathogenesis, laboratory investigations like immunohistochemistry, fluorescent microscopy, enzyme immunoassays and molecular biology, and the availability of fourth generation antibiotics, the overall visual outcome in bacterial keratitis has improved with time. Particular attention should be given to this condition as it can progress very rapidly with complete corneal destruction occurring within 24–48 hours. Early diagnosis, which is primarily clinical and substantiated largely by microbiological data, and prompt treatment are needed to minimise the possibility of permanent visual loss and reduce structural damage to the cornea.

Al-Mujaini, Abdullah; Al-Kharusi, Nadia; Thakral, Archana; Wali, Upender K

2009-01-01

196

[Clinico-diagnostic and expert characteristics of noncoronary cardiac rhythm disorders in state aviation pilots].  

PubMed

Structure and prevalence of various forms of noncoronary heart diseases (NCHD) and cardiac rhythm disorders (CRD) in state aviation pilots, as well as rates of ensuing grounding were studied. The total of 220 NCHD and 100 essentially healthy pilots were examined. Cardiovascular clinical and functional investigations consisted of physical examination, ECG, dispersion mapping (DM ECG), provocative tests and other techniques used for pilots' certification. Effectiveness of the clinical and instrumental methods of diagnosing arrhythmias was evaluated. CRD presence was verified by Holter monitoring. Extrasystoles prevalence was recorded in NCHD pilots; clinically significant forms of the diseases were commonly detected in pilots with chronic infections of the tonsils. In addition, radiodiagnostics of the immune status was applied to confirm the role of infection and immunology factor. DM ECG screening for differentiation between the norm and pathology was found useful in detecting early metabolic shifts and CVS functional evaluation. These results provided the basis for guidelines concerning medical expertise of pilots with noncoronary arrhythmias. PMID:24032165

Nagovitsyn, A V; Ardashev, V N; Voronkov, Yu I

2013-01-01

197

Clinico-pathological significance of extra-nodal spread in special types of breast cancer  

PubMed Central

Objective To investigate the significance of extra-nodal spread in special histological sub-types of breast cancer and the relationship of such spread with prognostic parameters. Methods A total of 303 breast cancer cases were classified according to tumor type, and each tumor group was subdivided according to age, tumor diameter, lymph node metastasis, extra-nodal spread, vein invasion in the adjacent soft tissue, distant metastasis, and immunohistochemical characteristics [estrogen receptor (ER), progesterone receptor (PR) existence, p53, c-erbB-2, and proliferative rate (Ki-67)]. The 122 cases with extra-nodal spread were clinically followed up. Results An extra-nodal spread was observed in 40% (122 cases) of the 303 breast cancer cases. The spread most frequently presented in micro papillary carcinoma histological sub-type (40 cases, 75%), but least frequently presents in mucinous carcinoma (2 cases, 8%). Patients with extra-nodal spread had a high average number of metastatic lymph nodes (8.3) and a high distant metastasis rate (38 cases, 31%) compared with patients without extra-nodal spread. Conclusion The existence of extra-nodal spread in the examined breast cancer sub-types has predictive value in forecasting the number of metastatic lymph nodes and the disease prognosis.

Kaygusuz, Ecmel Isik; Cetiner, Handan; Yavuz, Hulya

2014-01-01

198

Liver metastases in Egyptian patients with colorectal cancer: incidence and clinico-pathological predictors.  

PubMed

Carcinoma of the large bowel is the fourth commonest cancer worldwide. The most frequent site for metastasis is the liver. Overall 30% of patients develop liver metastasis during the course of their illness; of these, 23% to 47% are synchronous lesions. These data are based on western studies. No data are published on patients with colorectal cancer from Egypt. We aimed to assess the incidence of colorectal liver metastasis in Egyptian patients and to evaluate the differences in the clinicopathological features and tumor behavior in patients with and without liver metastasis. One hundred forty eight patients were prospectively enrolled in the study. Patients were classified into metastatic group (n=78) and non metastatic group (n=70). In the two groups macroscopic features compared including: tumor size (2 cm, 2-5 cm, and >5 cm), site of primary tumor, side of liver involved, clinical symptoms and liver profile. Carcino-embryonic antigen (CEA) and cancer antigen (CA19.9) levels were recorded. At microscopy, tumor differentiation, invasion and nodal status were evaluated. No difference was found in the distribution of the primary site and size of the tumor. Jaundice, hepatomegaly and ascites were significantly higher in patients with liver metastases. Patients with liver metastasis had higher levels of CEA, CA19.9, higher frequency of vascular invasion and nodal involvement. PMID:22435152

El-Wakil, Hesham M; Ali-Eldin, Fatma A; Bakir, Amal S M; Abdel-Kader, Nadia A; Ellithy, Mahmoud A

2011-12-01

199

A new report on the occurrence of clinico-histopathological diagnostic criteria for Spinodiplotriaena.  

PubMed

Parasitic diseases of wild birds follows its companion volume, infectious diseases of wild birds, both of which complement the third edition of infectious diseases of wild mammals and second edition of parasitic diseases of wild mammals. In October 2012, a mature black male mynah with lack of balance and ataxia was brought into the birds department of educational hospital in veterinary medicine faculty of Tehran University. Because of no cure in clinical signs after several days of empirical therapy euthanasia and clinical pathology studies were performed. There was no microscopic pathological lesions in brain, bone marrow, heart, lung, liver and the microscopic results were as following; bone marrow: hemophagocytosis reactive macrophages, liver: infiltration of inflammatory cells (hepatitis) and hemosiderin-laden macrophages. Lung: hemosiderin-laden macrophages and spleen findings: infiltration of inflammatory cells, heterophils with phagocytic bacteria. In abdominal cavity two male and one female parasite was detect. Three parasites were cleared with lactophenol and investigated under the light microscopy and important morphological parts of them measured. Also these parasites in serum containing send to the department of parasitology. Based on all collecting data, Spinodiplotriaena (three parasites each by the length of 2/5, 1/7 and 1/5 cm were found) were diagnosed. Report of this case in important because of first report of this infection in a black mynah in Iran. PMID:25035597

Javanbakht, Javad; Hosseini, Ehsan; Karimi, Shahram; Hassan, Mehdi Aghamohammad; Sabbagh, Atefeh; Mousavi, Shadi; Fattahi, Roohollah; Khaki, Fariba; Shafiee, Radmehr

2014-09-01

200

Demographic and clinico-epidemiological features of dengue fever in Faisalabad, Pakistan.  

PubMed

This cross-sectional study was carried out to explore the epidemiological and clinical features of dengue fever in Faisalabad, Pakistan during 2011 and 2012. During the study period, anti-dengue IgM positive cases were reported in the post-monsoon period during the months of August-December. Certain hotspots for the dengue infection were identified in the city that coincide with the clusters of densely populated urban regions of the city. Out of total 299 IgM positive patients (male 218 and female 81); there were 239 dengue fever (DF) and 60 dengue hemorrhagic fever (DHF) patients. There was decrease in the median age of dengue patients from 31 years in 2011 to 21.5 years in 2012 (p<0.001). Abdominal pain was seen in 35% DHF patients followed by nausea in 28.3%, epistaxis in 25% and rash in 20% patients (p<0.05). Patients reported to be suffering from high-grade fever for an average of 8.83 days in DHF as compared to 5.82 days in DF before being hospitalized. Co-morbidities were found to be risk factor for the development of DHF in dengue patients. Clinical and laboratory features of dengue cases studied could be used for the early identification of patients at risk of severe dengue fever. PMID:24595236

Raza, Faiz Ahmed; Rehman, Shafiq ur; Khalid, Ruqyya; Ahmad, Jameel; Ashraf, Sajjad; Iqbal, Mazhar; Hasnain, Shahida

2014-01-01

201

Clinico-pathological features in amyotrophic lateral sclerosis with expansions in C9ORF72  

PubMed Central

Intronic expansion of the GGGGCC hexanucleotide repeat within the C9ORF72 gene causes frontotemporal dementia and amyotrophic lateral sclerosis/motor neuron disease in both familial and sporadic cases. Initial reports indicate that this variant within the frontotemporal dementia/amyotrophic lateral sclerosis spectrum is associated with transactive response DNA binding protein (TDP-43) proteinopathy. The amyotrophic lateral sclerosis/motor neuron disease phenotype is not yet well characterized. We report the clinical and pathological phenotypes associated with pathogenic C9ORF72 mutations in a cohort of 563 cases from Northern England, including 63 with a family history of amyotrophic lateral sclerosis. One hundred and fifty-eight cases from the cohort (21 familial, 137 sporadic) were post-mortem brain and spinal cord donors. We screened DNA for the C9ORF72 mutation, reviewed clinical case histories and undertook pathological evaluation of brain and spinal cord. Control DNA samples (n?=?361) from the same population were also screened. The C9ORF72 intronic expansion was present in 62 cases [11% of the cohort; 27/63 (43%) familial, 35/500 (7%) cases with sporadic amyotrophic lateral sclerosis/motor neuron disease]. Disease duration was significantly shorter in cases with C9ORF72-related amyotrophic lateral sclerosis (30.5 months) compared with non-C9ORF72 amyotrophic lateral sclerosis/motor neuron disease (36.3 months, P?

Cooper-Knock, Johnathan; Hewitt, Christopher; Highley, J. Robin; Brockington, Alice; Milano, Antonio; Man, Somai; Martindale, Joanne; Hartley, Judith; Walsh, Theresa; Gelsthorpe, Catherine; Baxter, Lynne; Forster, Gillian; Fox, Melanie; Bury, Joanna; Mok, Kin; McDermott, Christopher J.; Traynor, Bryan J.; Kirby, Janine; Wharton, Stephen B.; Ince, Paul G.; Hardy, John

2012-01-01

202

Molecular and clinico-pathological markers in rectal cancer: a tissue micro-array study  

Microsoft Academic Search

Aims  The aims of the study were to study the effect of pre-operative treatment on the expression of tumour-related proteins and\\u000a to correlate the expression of these proteins with response and survival of patients with advanced rectal cancer.\\u000a \\u000a \\u000a \\u000a Materials and methods  Tissue micro-arrays from pre- and post-treatment biopsies of 99 patients with rectal cancer treated with pre-operative (chemo)radiotherapy\\u000a were stained for epidermal

Annelies Debucquoy; Laurence Goethals; Louis Libbrecht; Christiaan Perneel; Karel Geboes; Nadine Ectors; William H. McBride; Karin Haustermans

2009-01-01

203

Ent?rite n?crotique chez le poulet de gril I. Aspect clinico-pathologique  

PubMed Central

This study represents an analysis of the principal clinical factors and pathological lesions of 150 cases of necrotic enteritis encountered during 1968 and 1969 in Quebec. Following multiple investigations no common factor was observed which might have explained the pathogenesis of the condition which was observed during every month of the year, especially from May to November. Birds two to four weeks of age were the most susceptible. The main lesion was a fibrino-necrotic enteritis always localized in the small intestine, either in its entire length or just a segment and characterized by the disappearance of the surface epithelium and necrosis of the villi. The lumen was filled with desquamated epithelial cells and bacteria. Foci of coagulation necrosis were observed in the liver and foci of nephrosis in the kidneys. A Gram+ bacillus, strictly anaerobic, was always isolated from the viscera. ImagesPhoto 1.Photo 2.Photo 3.Photo 4.Photo 5.Photo 6.Photo 7.

Bernier, G.; Phaneuf, J.-B.; Filion, R.

1974-01-01

204

Clinico-bacteriological study of chronic dacryocystitis cases in northern karnataka, India.  

PubMed

Aims and objectives: The aim of this study was to identify the organisms responsible and to determine the antibiotic susceptibility pattern of the bacterial isolates from conjunctiva and nasal mucosa in cases of chronic dacryocystitis and comparing with lacrimal sac specimen. Design: Prospective longitudinal study. Methods: A prospective analysis of 44 lacrimal sac contents of patients with chronic dacryocystitis conducted during the period from April 2012 to March 2013. Material was obtained directly from the lacrimal sac while making sac flap during external dacryocystorhinostomy for chronic dacryocystitis. Samples were also collected from ipsilateral conjunctiva and inferior meatus of nose. The specimens were cultured and results analyzed. Statistical Analysis: The results were analyzed by using Chi-square (?(2)) test. Results: All the patients were in age group of 30 and above. Gram positive bacteria i.e., Coagulase negative staphylococci and Staphylococcus aureus were the most common isolates (71% and 14% respectively). Vancomycin, amikacin, 3(rd) generation cephalosporins and amoxyclav were most sensitive antibiotics (100%, 89%, 83%, and 78% respectively). Comparison between lacrimal and nasal/conjunctival isolates showed high degree of identicalness between the isolates of two sites (p< 0.05). Conclusion: Majority of the chronic dacryocystitis cases are caused by Coagulase negative Staphylococci and Staphylococcus aureus. Amoxyclav and 3(rd) generation cephalosporins can be used to treat chronic dacryocystitis. Commensal flora of nose and conjunctiva have a direct role in pathogenesis of chronic dacryocystitis. PMID:24392383

A V, Pradeep; Patil, Satish S; Koti, S V; J S, Arunkumar; Garag, Santosh S; Hegde, Jyotirmay S

2013-11-01

205

Epithelial toll-like receptor 9 signaling in colorectal inflammation and cancer: Clinico-pathogenic aspects  

PubMed Central

Toll-like receptors (TLRs) recognize specific motifs which are frequently present in bacteria, fungi, prokaryotes and viruses. Amongst TLRs, TLR9 can be activated by such bacterial or viral DNA fragments, immunoglobulin-DNA complexes or synthetic oligonucleotides, which all contain unmethylated cytosine-guanine nucleotide sequences (CpGs). Emerging data indicate that TLR9 signaling has a role in, and may influence, colorectal carcinogenesis and colonic inflammation. CpGs are classified into three groups according to their influence on both the antigen-specific humoral- and cellular immunity, and the production of type 1 interferons and proinflammatory cytokines. TLR9 activation via CpGs may serve as a new therapeutic target for several cancerous and various inflammatory conditions. Due to its probable anti-cancer effects, the application possibilities of TLR9-signaling modulation may be extremely diverse even in colorectal tumors. In this review we aimed to summarize the current knowledge about TLR-signaling in the pathogenesis and therapy of inflammatory bowel diseases and colorectal cancer. Due to the species-specific differences in TLR9 expression, however, one must be careful in translating the animal model data into the human system, because of the differences between CpG-oligodeoxynucleotide-responsive cells. TLR9 agonist DNA-based immunomodulatory sequences could also represent a promising therapeutic alternative in systemic inflammatory conditions and chronic colonic inflammations as their side effects are not significant.

Furi, Istvan; Sipos, Ferenc; Germann, Tiana M; Kalmar, Alexandra; Tulassay, Zsolt; Molnar, Bela; Muzes, Gyorgyi

2013-01-01

206

Clinico-immunologic Study on Immunotherapy with Mixed and Single Insect Allergens  

Microsoft Academic Search

Background  Immunotherapy (IT) is practiced mainly with mixed and single allergen vaccines. But studies are rare with mixed allergen preparations.\\u000a \\u000a \\u000a \\u000a Objective  The objective of this study is to study mix and single insect allergen IT in patients of allergic rhinitis and asthma.\\u000a \\u000a \\u000a \\u000a Methods  We performed a double-blind placebo-controlled trial of mix and single allergen IT for 1 year in 99 patients of asthma or

Deepsikha Srivastava; Bhanu P. Singh; Naveen Arora; Shailendra Nath Gaur

2009-01-01

207

Clinico-pathological features of pilomyxoid astrocytoma of the optic pathway  

Microsoft Academic Search

Five cases of pilomyxoid astrocytoma (PmA) characterized by a monophasic pattern with a myxoid background were selected for a clinicopathological study from 23 cases previously diagnosed as pilocytic astrocytoma (PA). All PmA patients were either infants or young children (mean age 2.1 years), and all tumors were located in the optic chiasm\\/hypothalamus region. All cases received chemotherapy, which reduced tumor size,

Kanako Chikai; Akiko Ohnishi; Tsutomu Kato; Jun Ikeda; Yutaka Sawamura; Yoshinobu Iwasaki; Tomoo Itoh; Hirofumi Sawa; Kazuo Nagashima

2004-01-01

208

Clinico-epidemiological study of Schistosomiasis mansoni in Waja-Timuga, District of Alamata, northern Ethiopia  

PubMed Central

Background Intestinal schistosomiasis, caused by digenetic trematodes of the genus Schistosoma, is the most prevalent water related disease that causes considerable morbidity and mortality. Although prevalence of Schistosoma mansoni infection has been reported for the present study area, earlier studies have not estimated intensity of infections in relation to periportal fibrosis, which would have been crucial for epidemiological and clinical evaluations. Hence, a community based cross sectional study was conducted from December 2011 to March 2012 to assess prevalence of infection and schistosomal periportal fibrosis in Waja-Timuga, northern Ethiopia. Methods In a cross sectional study involving 371 randomly selected individuals, fresh stool samples were collected and processed by the Kato-Katz method and examined microscopically. Ultrasonography was used to determine status of schistosomal periportal fibrosis and to detect hepatomegaly and/or splenomegaly. Serum was collected for assay of hepatic activity. Statistical analysis was performed using STATA 11 statistical soft ware. P-value <0.05 was reported as statistically significant. Results The prevalence of S.mansoni infection was 73.9%, while the prevalence of schistosomal periportal fibrosis was 12.3% and mean intensity of infection was 234 eggs per gram of stool. Peak prevalence and intensity of S.mansoni infection was documented in the age range of 10–20 years. Among the study individuals, hepatomegaly was recorded in 3.7% and splenomegaly was recorded in 7.4% of the study individuals. Similarly, among the study individuals who had definite periportal fibrosis, 5.9% had elevated liver enzyme levels. Conclusion The high prevalence of Schistosoma mansoni infection and schistosomal periportal fibrosis observed in the study area calls for a periodic deworming program to reduce disease, morbidity and transmission. Preventive chemotherapy complemented with other control measures is highly required for sustainable control of schistosomiasis in the study area.

2014-01-01

209

Endophthalmitis patients seen in a tertiary eye care centre in Odisha: A clinico-microbiological analysis  

PubMed Central

Background & objectives: Geographical variations are known to influence different aspects of endophthalmitis. We report the epidemiological, clinical and microbiological profile of patients with infectious endophthalmitis presented to a tertiary eye care centre in Odisha, India, and compare the results with published reports from other parts of India. Methods: Retrospective review of medical records of 107 patients, seen between December 2006 and January 2009 was done. All patients had undergone parsplana vitrectomy with intraocular antibiotics and the management was based on microbiological analysis of the vitreous fluid. Results: Forty six (43.0%) patients had post-operative (PO), 43 had post-traumatic (PT) and 18 (16.8%) had endogenous (EG) endophthalmitis. Males were predominant in all three types of endophthalmitis. Significantly younger individuals constituted PT group. While culture established microbial diagnosis in 45 patients (42%), direct microscopy was positive in 38 patients (35.5%). Fungal aetiology was found in 13 patients (PO-7, PT-4, EG-2) and bacteria accounted for 32. Similar to studies from north, central and south India, fungi and Gram-negative bacteria accounted for a large number of PO endophthalmitis cases. Two PT patients had polymicrobial infection. All Gram-positive bacteria were susceptible to vancomycin. Susceptibility to ceftazidime was variable among the Gram-negative bacteria. Best corrected visual acuity (BCVA) at presentation was less than 20/200 in majority (93%) of the patients. While the treatment outcome was variable in fungal and sterile endophthalmitis, the BCVA was either unchanged or improved in 100 per cent of bacterial endophthalmitis patients. Interpretation & conclusions: The spectrum of infection and outcome of infectious endophthalmitis in Odisha was similar to other parts of the country. Fungi and bacteria were involved in all three types of endophthalmitis. Empirical use of standard intravitreal therapy is recommended while emphasizing on vitreous biopsy for culture and sensitivity whenever possible.

Sharma, Savitri; Padhi, Tapas R.; Basu, Soumyava; Kar, Sarita; Roy, Arvind; Das, Taraprasad

2014-01-01

210

[120 biopsies of pituitary adenomas studied by immunohistochemistry and electron microscopy. A clinico-pathological correlation].  

PubMed

Study of biopsies from 120 pituitary adenomas from the Hospital de Especialidades, Centro Médico Nacional, and the Hospital 20 de Noviembre, ISSSTE, were studied over a period of 55 months. 70 cases were female and 50 male. Ages varied between 18 and 67 years of age (with an average of 31 years). Histologically 41 tumors were chromophobes, 34 acidophilic, 37 mixed and 8 basophilic. 101 patients were operated by trans-sphenoidal (84.5%) and 19 were operated (15.5%) by trans-cranial approaches. 99 tumors were macroadenomas (81.1%) and 21 were microadenomas (18.9%). More than one hormone was found in the cytoplasm of 69 adenomas, although only 20 fulfilled the criteria of being plurihormonal. Those adenomas classified as "non-functional", mostly produced glycoprotein hormones corresponding to oncocytomas and null cell adenomas, from an ultrastructural point of view. 85 patients developed different degrees of visual impairment, with 30 tumoral relapses, of which 10 received radiotherapy. 40 adenomas produced prolactin, although only 29 patients developed clinical signs of hyperprolactinemia; 38 tumors contained growth hormone, of which only 25 had acromegaly; 8 tumors contained ACTH in the cytoplasm, although only 7 developed Cushing's Syndrome and 57 patients (47.5%) were classified as nonfunctional and did not show any endocrinological data. All the cases are studied with a light microscope, electron microscope, and they were all submitted to a complete set of adenohypophyseal hormone with immunoperoxidase technique. PMID:1302734

Félix, I A; Rodríguez Mendoza, L; Guinto, G; Torres Corzo, J; Wussterhaus, C A

1992-01-01

211

Ageing and degeneration in the macular region: a clinico-pathological study  

Microsoft Academic Search

Clinical and pathological examination was performed on 378 eyes from 216 patients aged 43 to 97 years. This series represented eyes in which the fundi were normal or showed various manifestations of senile macular degeneration. The eyes were divided into six groups according to the histological appearance of a linear deposit at the base of the retinal pigment cells. Groups

S H Sarks

1976-01-01

212

Inherited metabolic disorders involving the eye: a clinico-biochemical perspective  

Microsoft Academic Search

The diagnosis of inborn errors of metabolism is challenging for most physicians. Improvements in medical technology and greater knowledge of the human genome are resulting in significant changes in the diagnosis, classification, and treatment of inherited metabolic disorders (IMDs). Many known inborn errors of metabolism will be recognised earlier or treated differently because of these changes. It is important that

M Rajappa; A Goyal; J Kaur

2010-01-01

213

[A clinico-physiological study on the generators of short latency somatosensory evoked potential].  

PubMed

The purpose of this paper is to locate the generators of each wave component in the short latency somatosensory evoked potential (SSEP), by means of cumulative analysis of the SSEP obtained from various localized lesions in the upper cervical cord through brain stem and cerebral subcortical structures. Since there are considerable inconsistency of naming each component in the literature, SSEP to median nerve stimulation of 10 normal subjects were examined by two different recordings, i.e. recording from an electrode at the parietal scalp with a reference electrode on Erb's point (Par.-Erb), and the other at the frontal scalp with a reference electrode on Cv 7 (Fro.-Cv 7), and the SSEP was carefully studied. In normal subjects, the SSEP by Par.-Erb lead yielded 5 negative components (N 7, N 11, N 16, N 18 & N 26) and 4 positive components (P 9, P 13, P 22 & P 42), while by Fro.-Cv 7 5 negative components (N 7, N 10, N 12, N 16 & N 28) and 5 positive components (P 9, P 11, P 13, P 20 & P 44). Thirty three patients were subjected to analyse the influence of localized lesions to each component of the SSEP and the recording was evaluated in regard to (a) identification of each component, (b) latency of each component and inter-peak latency difference exceeding 2 SD, and (c) over 50% asymmetry and laterality of the amplitude. Cervical spondylotic myelopathy, high cervical cord tumor, tonsillar herniation, pontine infarct and hemorrhage, circumscribed thalamic lesion, and vascular lesion of centrum semiovale were carefully examined with CT scan and the findings were compared with neurological findings periodically. SSEP was taken repeatedly, especially before and after operative intervention, and alteration of the component was referred to the clinical progress of the lesion. In conclusion, results obtained from our present observation indicated that P 9 was the extramedullary projection, P 11 was intramedullary origin of the lower cervical cord, P 13 was medulla oblongata origin and P 13-N 16 was projection from medulla oblongata to thalamus. N 16-N 18 and N 26 were considered projection from thalamus to hand area of the parietal lobe with some association area and N 28 had the generator widely based on frontal projection system. These findings appeared to be quite useful for topographic diagnosis and functional evaluation of the lesions in central nervous system. PMID:6743408

Urasaki, E; Matsukado, Y; Wada, S; Kaku, M; Nagahiro, S

1984-04-01

214

[Clinico-quatitative evaluation of the action of Ciba 34.647-Ba on spasticity].  

PubMed

Using the clinical quantification of the neurologic symptomatology the authors made observations and avaliated the action of Ciba 34.647-Ba, a GABA derivative, in 12 patients suffering from spasticity and motor incapacity due to spinal cord lesions. The results are reported emphasizing the effects of the drug on the main components of spasticity (hypertonus, hyperactivity of the deep reflexes, clonus and automatisms). Some theories explaining the mechanism of action of the drug are mentioned. References are made about doses, duration of action, tolerance and side-effects. PMID:588090

Roitman, I; Anghinah, A

1977-12-01

215

Hereditary spastic paraplegia: clinico-pathologic features and emerging molecular mechanisms  

PubMed Central

Hereditary spastic paraplegia (HSP) is a syndrome designation describing inherited disorders in which lower extremity weakness and spasticity are the predominant symptoms. There are more than 50 genetic types of HSP. HSP affects individuals diverse ethnic groups with prevalence estimates ranging from 1.2 to 9.6 per 100,000 [39, 70, 77, 154, 185]. Symptoms may begin at any age. Gait impairment that begins after childhood usually worsens very slowly over many years. Gait impairment that begins in infancy and early childhood may not worsen significantly. Post mortem studies consistently identify degeneration of corticospinal tract axons (maximal in the thoracic spinal cord) and degeneration of fasciculus gracilis fibers (maximal in the cervico-medullary region). HSP syndromes thus appear to involve motor-sensory axon degeneration affecting predominantly (but not exclusively) the distal ends of long central nervous system (CNS) axons. In general, proteins encoded by HSP genes have diverse functions including axon transport (e.g. SPG30/KIF1A, SPG10/KIF5A and possibly SPG4/Spastin); endoplasmic reticulum morphology (e.g. SPG3A/Atlastin, SPG4/Spastin, SPG12/reticulon 2, and SPG31/REEP1, all of which interact); mitochondrial function (e.g. SPG13/chaperonin 60/heat shock protein 60, SPG7/paraplegin; and mitochondrial ATP6; 4) myelin formation (e.g. SPG2/Proteolipid protein and SPG42/Connexin 47); 5) protein folding and ER-stress response (SPG6/NIPA1, SPG8/K1AA0196 (Strumpellin), SGP17/BSCL2 (Seipin) [113-115], “mutilating sensory neuropathy with spastic paraplegia” due to CcT5 mutation and presumably SPG18/ERLIN2); 6) corticospinal tract and other neurodevelopment (e.g. SPG1/L1 cell adhesion molecule and SPG22/thyroid transporter MCT8); 7) fatty acid and phospholipid metabolism (e.g. SPG28/DDHD1, SPG35/FA2H, SPG39/NTE, SPG54/DDHD2, and SPG56/CYP2U1); and 8) endosome membrane trafficking and vesicle formation (e.g. SPG47/AP4B1, SPG48/KIAA0415, SPG50/AP4M1, SPG51/AP4E, SPG52/AP4S1, and VSPG53/VPS37A). The availability of animal models (including bovine, murine, zebrafish, Drosophila, and C. elegans) for many types of HSP permits exploration of disease mechanisms and potential treatments. This review highlights emerging concepts of this large group of clinically similar disorders. For recent review of HSP including historical descriptions, differential diagnosis, and additional references see [78].

Fink, John K.

2014-01-01

216

Clinico-Pathologic Function of Cerebral ABC Transporters - Implications for the Pathogenesis of Alzheimer's Disease  

PubMed Central

In recent years it has become evident that ABC transporters fulfill important barrier functions in normal organs and during disease processes. Most importantly, resistance to drugs in cancer cells led to intense oncological and pharmacological investigations in which researchers were able to highlight important pharmacological interactions of chemotherapeuticals with ABC transporter function. Recently, the development of neurodegenerative diseases and the maintenance of neuronal stem cells have been linked to the activity of ABC transporters. Here, we summarize findings from cell culture experiments, animal models and studies of patients with Alzheimer’s disease. Furthermore, we discuss pharmacological interactions and computational methods for risk assessment.

Pahnke, Jens; Wolkenhauer, Olaf; Krohn, Markus; Walker, Lary C.

2009-01-01

217

[Clinico-electroencephalographic observations in epileptic patients during long-term treatment with benzonal].  

PubMed

Benzonal was given to 52 epileptics. In 50 cases the duration of treatment ranged from 3 months to 7 years (mean 18 months) in doses of 100-500 mg daily, in 2 cases it had to be withdrawn after a short-term treatment because of intolerance. In all cases the drug was given together with other anticonvulsants: hydantoin, derivatives, mysodin, Tegretol, pheneturid or Ospolot in place of previously administered phenobarbital. It was found that benzonal reduced significantly the frequency of partial simple seizures (in 6 out of 20 cases) and grand mal seizures (in 24 out of 34 cases), while its action on the partial complex seizures was much weaker (improvement in only 7 out of 20 cases). The drug was usually well tolerated, side effects of greater intensity developed in 2 cases only, transient somnolence was observed in another 6 cases. In EEG records a slight favourable effect was exerted on pathological background activity with absent effect in focal changes and increase of seizure activity. The authors believe that in view of its favourable clinical action and good tolerance the drug may be widely used in properly selected cases of epilepsy. PMID:812001

Bittner-Manicka, M; Wasilewski, R

1975-01-01

218

[Clinico-morphological rationale of surgery for patients with duodenal ruptures by blunt abdominal trauma].  

PubMed

Ruptures of the duodenum remains one of pending problems of the emergency surgery, which is also stipulated by the relative rarity of such injury. The study is based on experimental part, carried out on 47 dogs, and analysis of surgical treatment of 51 patients with duodenal ruptures. The results allowed optimizing surgical tactics and post-traumatic purulent complications prophylaxy in such patients. PMID:19738555

Chirkov, R N; Abakumov, M M; Dubrovin, I A

2009-01-01

219

A clinico-epidemiological study of sickle cell anaemia in Saudi Arabia.  

PubMed

Ninety-nine Saudi Arabian children aged between 3 months and 15 years attending the sickle cell anaemia (SCA) clinic were studied using a review of case notes and an interview at clinic visits. All the patients come from the southwest and west area of Saudi Arabia. Despite the lack of infant screening for SCA, 73 per cent were diagnosed before the age of 3 years, reflecting severe early symptoms of the disease. The serious complications of SCA were two times higher, the number of admissions were three times higher and the attack rate for pneumococcal meningitis was nine times higher in our study population than previously reported from the Eastern Province of the country. Hand-foot syndrome was the commonest complication affecting 58 per cent of the children. It has been stated previously that there is no need to give penicillin prophylaxis to SCA children in Saudi Arabia, based on the observations in the Eastern Province only. Our study shows that SCA in western and southwestern population of Saudi Arabia is as severe as is described in American blacks. Therefore, we recommend penicillin prophylaxis to be given to the SCA children in the southwest and west regions of the country. PMID:1861279

Mulik, R; Butikofer, A; Aramouni, G; Munshi, N; Iliff, P

1991-06-01

220

Abdominal obesity, an independent cardiovascular risk factor in Indian subcontinent: A clinico epidemiological evidence summary.  

PubMed

Evidence is emerging that obesity-associated cardiovascular disorders (CVD) show variations across regions and ethnicities. However, it is unclear if there are distinctive patterns of abdominal obesity contributing to an increased CVD risk in South Asians. Also, potential underlying mechanistic pathways of such unique patterns are not comprehensively reported in South Asians. This review sets out to examine both. A comprehensive database search strategy was undertaken, namely, PubMed, Embase and Cochrane Library, applying specific search terms for potentially relevant published literature in English language. Grey literature, including scientific meeting abstracts, expert consultations, text books and government/non-government publications were also retrieved. South Asians have 3-5% higher body fat than whites, at any given body mass index. Additional distinctive features, such as South Asian phenotype, low adipokine production, lower lean body mass, ethno-specific socio-cultural and economic factors, were considered as potential contributors to an early age-onset of obesity-linked CVD risk in South Asians. Proven cost-effective anti-obesity strategies, including the development of ethno-specific clinical risk assessment tools, should be adopted early in the life-course to prevent premature CVD deaths and morbidity in South Asians. PMID:22135477

Prasad, D S; Kabir, Zubair; Dash, A K; Das, B C

2011-10-01

221

An integrated clinico-metabolomic model improves prediction of death in sepsis.  

PubMed

Sepsis is a common cause of death, but outcomes in individual patients are difficult to predict. Elucidating the molecular processes that differ between sepsis patients who survive and those who die may permit more appropriate treatments to be deployed. We examined the clinical features and the plasma metabolome and proteome of patients with and without community-acquired sepsis, upon their arrival at hospital emergency departments and 24 hours later. The metabolomes and proteomes of patients at hospital admittance who would ultimately die differed markedly from those of patients who would survive. The different profiles of proteins and metabolites clustered into the following groups: fatty acid transport and ?-oxidation, gluconeogenesis, and the citric acid cycle. They differed consistently among several sets of patients, and diverged more as death approached. In contrast, the metabolomes and proteomes of surviving patients with mild sepsis did not differ from survivors with severe sepsis or septic shock. An algorithm derived from clinical features together with measurements of five metabolites predicted patient survival. This algorithm may help to guide the treatment of individual patients with sepsis. PMID:23884467

Langley, Raymond J; Tsalik, Ephraim L; van Velkinburgh, Jennifer C; Glickman, Seth W; Rice, Brandon J; Wang, Chunping; Chen, Bo; Carin, Lawrence; Suarez, Arturo; Mohney, Robert P; Freeman, Debra H; Wang, Mu; You, Jinsam; Wulff, Jacob; Thompson, J Will; Moseley, M Arthur; Reisinger, Stephanie; Edmonds, Brian T; Grinnell, Brian; Nelson, David R; Dinwiddie, Darrell L; Miller, Neil A; Saunders, Carol J; Soden, Sarah S; Rogers, Angela J; Gazourian, Lee; Fredenburgh, Laura E; Massaro, Anthony F; Baron, Rebecca M; Choi, Augustine M K; Corey, G Ralph; Ginsburg, Geoffrey S; Cairns, Charles B; Otero, Ronny M; Fowler, Vance G; Rivers, Emanuel P; Woods, Christopher W; Kingsmore, Stephen F

2013-07-24

222

The clinico-hematological profile of hairy cell leukaemia: a single centre experience.  

PubMed

The response rates and overall survival of hairy cell leukemia has changed remarkably with cladribine. Twenty patients diagnosed as hairy cell leukemia over a 5 year period were evaluated. Median age of the patients was 52.5 years. Splenomegaly was seen in 85% and hepatomegaly in 50% patients. At presentation, pancytopenia was seen in 45% and bicytopenia in 20% patients. Tartrate resistant acid phosphatase was positive in 73.68%. Cladribine was given in 13 patients. Overall survival was 84.6%. Median duration of follow-up was 17 months (4-108 months). Direct Coombs' test positive autoimmune hemolytic anemia was seen in two patients (15.38%) on cladribine therapy who required treatment with steroids. PMID:20557675

Bhargava, Rahul; Kar, Rakhee; Mahapatra, Manoranjan; Saxena, Renu

2010-06-01

223

[A clinico-pharmacological basis for optimizing the treatment of therapy-resistant forms of epilepsy].  

PubMed

On 44 epileptic patients antiepileptic phenobarbital, finlepsin, diphenine, hexamidine were studied. The alterations in the level of free and bound fractions under the drug application in maximal tolerance daily doses, depending on changes in the administration frequency during the day, were recorded. It was established that level fluctuations of the total preparation occur mainly owing to level alterations in the fraction not bound to serum proteins. An increase in the drug administration frequency under the constant daily dose leads to a distinct reduction in the free fraction level fluctuations between doses, to a decrease in the intensity or removal of side effects, and makes it possible to further build up the daily dose to obtain the required effect. PMID:9026179

Gromov, S A; Smirnov, D P; Khorshev, S K

1996-01-01

224

Prevalence, clinico-pathological value, and co-occurrence of PDGFRA abnormalities in diffuse gliomas  

PubMed Central

PDGFRA is a critical gene in glioma biology. Similar to EGFR, PDGFRA has been shown to be overexpressed, amplified, mutated, or truncated in gliomas, particularly glioblastomas. In addition, PDGFRA has been recently shown to be rearranged in glioblastoma. However, the frequency, cooccurrence, and clinical value of PDGFRA abnormalities in diffuse gliomas remain unclear. We investigated PDGFRA abnormalities and their clinical impact on 619 primary diffuse gliomas, including 167 grade II, 168 grade III, and 284 grade IV gliomas, with use of BAC-aCGH and validated our findings by quantitative polymerase chain reaction (PCR). We studied PDGFRA expression using reverse-transcription quantitative PCR in 84 gliomas and 12 non-tumor samples. In 138 samples, we also screened PDGFRA point mutations in exons 5, 7, 8, 9, 10, 11, and 23; presence of KDR-PDGFRA fusion gene; and PDGFRA truncation. PDGFRA was amplified and gained in 5.2% and 1.9% of samples, respectively. In addition PDGFRA was point-mutated, rearranged, and truncated in 2.9%, 0%, and 0.7% of cases, respectively. PDGFRA point mutations were observed exclusively in grade IV gliomas and in 12.5% of PDGFRA-amplified tumors. High-level PDGFRA amplification was associated with PDGFRA overexpression, high malignancy grade, and older patient age. Of interest, high-level PDGFRA amplification has an independent negative prognostic value for progression-free survival and overall survival among patients with grade III tumors. PDGFRA is altered through various genetic mechanisms in a subset of high-grade gliomas in patients who might be ideal candidates for PDGFRA inhibitor treatment, and PDGFRA gene amplification could be used as a prognostic biomarker in anaplastic gliomas.

Alentorn, Agusti; Marie, Yannick; Carpentier, Catherine; Boisselier, Blandine; Giry, Marine; Labussiere, Marianne; Mokhtari, Karima; Hoang-Xuan, Khe; Sanson, Marc; Delattre, Jean-Yves; Idbaih, Ahmed

2012-01-01

225

Chronic thinner intoxication: clinico-pathologic report of a human case.  

PubMed Central

A 27 year old Mexican male addicted for 12 years to glue-sniffing and thinner inhalation developed neurological and behavioural disturbances which led to hospital admission and death. Autopsy disclosed diffuse cerebral and cerebellar cortex atrophy and giant axonopathy both central and peripheral. The corpus callosum was atrophic secondarily to neuron loss in the neocortex. Images

Escobar, A; Aruffo, C

1980-01-01

226

A Clinico-Pathologic Study of 142 Orofacial Tumors in Children and Adolescents in Southern Iran  

PubMed Central

Objective The prevalence, patients’ age and sex and the site of the lesions are important factors for diagnosis and they may be different in various populations. The aim of this study was to determine the type and distribution of orofacial tumors among children and adolescents in an Iranian population Methods In this retrospective, case series study, data about the type, age, sex and site of 142 tumors in patients ?18 years afflicted with orofacial neoplasms referred 2005-2009 to two referral centers in Shiraz, Southern Iran, were collected and analyzed. Findings There were 142 (2.8%) tumors among the subjects. The most common types of benign and malignant tumors were odontoma and lymphoma in children and pleomorphic adenoma and rhabdomyosarcoma in adolescents. Parotid and posterior parts of the mandible were the most common sites of soft tissue and intrabony tumors. In the oral cavity, the palate was the most common affected site. The tumors were found in boys with higher frequency (Male:Female ratio was 1.4:1). Conclusion The observed differences in tumor type and distribution in comparison with previous studies may be attributed to genetic and geographic variations in the populations; however the design and methods of the studies are different, too.

Jaafari-Ashkavandi, Zohreh; Ashraf, Mohammad-Javad

2011-01-01

227

A clinico-pathological study of actinomycotic mycetomas caused by Actinomadura madurae and Actinomadura pelletierii  

Microsoft Academic Search

Twenty seven cases of actionomycotic mycetoma caused either by Actinomadura madurae or Actinomadura pelletierii have been described. Infection by A. madurae has been more common than A. pelletierii. Left foot in A. madurae and right foot in A. pelletierii infections were involved more commonly in adult males, whereas right foot of the females was frequently affected in A. madurae infection.

A. Kamalam; A. S. Thambiah

1987-01-01

228

The nephrotic syndrome in the elderly: clinico-pathological correlations in 317 patients  

Microsoft Academic Search

We have used the Medical Research Council's Glomerulonephritis (GN) registry to review the clinicopathological findings in a large group (317) of patients over 60 years of age and presenting with the nephrotic syndrome. A wide variety of histological appearances were seen to underlie this clinical diagnosis with the most frequent being membranous nephropathy (36.6%), minimal change nephrotic syndrome (11.0%) and

Paul A. Johnston; June S. Brown; Alex M. Davison

1992-01-01

229

[Small focal lesions of the breast: a clinico-morphological analysis].  

PubMed

Morphological and mammographic study of small (less than 1 cm) focal mammary gland lesions of 170 women revealed foci of typical epithelium proliferation of the ducts and lobules, fibrosing adenosis, small duct papillomas and fibroadenoma, intraductal and ductal carcinoma in situ, sometimes with small invasion foci, infiltrating carcinoma, infiltrating lobular carcinoma. Peculiarities of small focal lesion morphology determine the mammographic picture. Analysis of nodular shadows on the mammogram gives as a rule a possibility to differentiate between benign conditions (focal proliferation of the epithelium, fibroadenoma), early carcinoma (intraductal and lobular in situ, sometimes with small foci of invasion) and infiltrating carcinoma. Calcareous deposits in both benign lesions and carcinomas do not differ mammographically. Morphogenetic link was revealed between foci of epithelium proliferation (benign displasia), intraductal and lobular carcinoma in situ and infiltrating carcinoma. Among 65 cases of non-palpable carcinoma, 31 (47.7%) were classified as early carcinoma and 34 (52.3%) as infiltrating carcinoma with a relatively low histological degree of malignancy. In both groups a good postoperative survival was observed. PMID:6095796

Serov, V V; Kuzin, M I; Zolotarevski?, V B; Zal'tsman, I N; Kulakova, A M

1984-01-01

230

Correlation of HER-2 over-expression with clinico-pathological parameters in Tunisian breast carcinoma  

PubMed Central

Background Breast carcinoma is a disease with a tremendous heterogeneity in its clinical behavior. Newer prognostic factors and predictors of response to therapy are needed. The aim of this study was to evaluate the expression of HER-2, estrogen receptor (ER) and progesterone receptors (PR) in breast carcinoma and to compare it with other prognostic parameters such as histological type and grade, tumor size, patients' age, and lymph node metastases. Patients and methods This is a retrospective study conducted in the department of pathology at Sfax University Hospital. Confirmed 155 Cases of breast carcinoma were reviewed in the period between January 2000 and December 2004. We used immunohistochemistry to evaluate the expression of HER-2, ER, and PR receptor and Chi-square and Fisher exact test to correlate immunohistochemical findings with prognostic parameters for breast carcinoma such as patients' age, tumor size, histological type, histological grade and lymph node status. Results The mean age of patients was 51.5 years, ranging from 22 to 89 years. 80 (51.6%) of the patients were below 50 years. The percentage of expression of HER-2, ER and PR was 26, 59.4, and 52.3%, respectively. HER-2 was over-expressed (3+) in 18.1% of the cases, was inversely related to ER expression (p = 0.00) and to PR expression (p = 0.048). This over-expression was also associated with a high tumor grade with marginal significance (p = 0.072). A negative correlation was noted between ER and PR expression and SBR grade (p = 0.000) and ER and age (p = 0.002). Conclusion HER-2 over-expression was observed in 18.1% of Tunisian breast carcinoma affecting female patients. This group presents apparently an aggressive form of breast carcinoma with high histological grade and negative ER.

Ayadi, Lobna; Khabir, Abdelmajid; Amouri, Habib; Karray, Sondes; Dammak, Abdallah; Guermazi, Mohamed; Boudawara, Tahya

2008-01-01

231

[Bronchiolitis obliterans-organizing pneumonia (BOOP) containing asbestos bodies: clinico-pathological study of a case].  

PubMed

We describe a case of bronchiolitis obliterans-organizing pneumonia (BOOP) with asbestos bodies. A 65-year-old man, treated in the past for gastric lymphoma and with an history of asbestos exposure, presented with fever and two nodular opacities in the lower lobe of the left lung. Histologic examination revealed a BOOP pattern; in the inflammatory tissue some asbestos bodies were present. Patients exposed to asbestos may rarely present with localized inflammatory pulmonary lesions. In these cases, the possible etiopathogenetic role of asbestos needs further studies. PMID:11785122

Cavazza, A; Nigrisoli, E; De Marco, L; Paci, M; Annessi, V; Agostini, L; Gardini, G

2001-12-01

232

Anomalous formation of the circulus arteriosus and its clinico-anatomical significance.  

PubMed

Circulus arteriosus (Circle of Willis) is an anastomotic ring which unites the internal carotid and vertebrobasilar systems. It slows down the blood before it reaches the brain and helps in collateral circulation. Anatomic study reveals the variation in the pattern and calibre of vessels which make up the circulus arteriosus. The greatest variation in calibre occurs in the posterior communicating artery. The posterior cerebral artery is divided into three portions by the posterior communicating artery; these are- P1, P2, and P3. Three basic configurations of the posterior communicating artery has been described; foetal, transitional and adult. In foetal configuration: the diameter of the P1 segment of posterior cerebral artery is less than the diameter of posterior communicating artery so that the blood supply to the occipital lobes is mainly via the internal carotid arteries. Thirty five circulus arteriosus of the formalin embalmed brains were studied during the period of three years. Posterior cerebral and posterior communicating arteries were traced from their origins to terminations. It is revealed that in 8.6% of cases the formation of the circulus arteriosus was anomalous. The calibre of the pre communicating (P1) segment of posterior cerebral artery was smaller than the posterior communicating artery. It appeared that the posterior cerebral artery is the continuation of posterior communicating artery, thus the branch of the internal carotid artery. Anomalies of the formation of circulus arteriosus leads to stroke. The neurosurgical importance of this study lies during the exposure of the region for different purposes. Knowledge of the vascular variations will increase the success of the procedure. PMID:21222400

Poudel, P P; Bhattarai, C

2010-06-01

233

Clinico-pathological profile of head and neck malignancies at University College Hospital, Ibadan, Nigeria  

PubMed Central

Introduction This retrospective study analysed head and neck malignancies seen over a 19-year period at the University College Hospital, Ibadan. Methodology One thousand, one hundred and ninety two patients with head and neck malignancies were analysed according to age, gender, topography and histology. Results There was an annual hospital frequency of 62 cases per year. The overall mean age for these malignancies was 43.9 (SD ± 19.3) years. The lesions from the respiratory tract were the most frequent (43.2%) of all cases. The palate was the most frequent intra-oral site (13.8%). Epithelial malignancies constituted 73.4% of all cases with a male: female ratio of 2:1, a mean age of 48.1 (SD ± 17.5) years and were mostly located in the larynx (19.7%). Lymphomas constituted 17.5% of all head and neck cancers with a male: female ratio of 1.6:1, a mean age of 35.1 (SD ± 20.6) years and nodal involvement (39.7%) was most common. Sarcomas constituted 8.9% of all malignancies with a male: female ratio of 1.5:1, mean age of 27.1 (SD ± 16.7) years and the maxillofacial bones (42.5%) were most commonly involved. Neuroendocrine malignancies accounted for 0.2% of head and neck malignancies with a male: female ratio of 1:1, a mean age of 28.5 (SD ± 6.4) years and both cases involved the nose. Conclusion This study has further confirmed that carcinomas remain the most frequent cancers of the head and neck region in south-western Nigeria.

2011-01-01

234

Diagnosis and Clinico-Radiological Presentation in an Aggressive Maxillary Brown Tumour  

PubMed Central

Brown’s tumour is an uncommon focal giant cell lesion which arises as a result of the effect of increased parathyroid hormone on bone tissues in hyperparathyroidism. The mandible is the predominantly affected site in the maxillofacial area and a maxillary involvement is rare. The severity of the lesion, caused by a Brown’s tumour, may lead to evident osteolysis and gross deformity in the maxillofacial region, which suggests the need for making an early diagnosis and giving prompt treatment. We are reporting a male patient who presented with a massive painful swelling in the right maxilla as the first manifestation of primary hyperparathyroidism, caused by a parathyroid adenoma.

Mubeen; KR, Vijayalakshmi; Singh, Chandravir

2014-01-01

235

Primary cutaneous apocrine carcinoma: a clinico-pathologic analysis of 24 cases.  

PubMed

Primary cutaneous apocrine carcinoma is a rare malignancy. This study of 24 examples suggests that the prognosis is not always poor and that grading criteria devised for breast carcinoma may have utility in this group of malignancies. Furthermore, steroid receptor expression should be investigated in these tumors, particularly if a tumor is unlikely to be controlled by surgery alone. PMID:18347508

Robson, Alistair; Lazar, Alexander J F; Ben Nagi, Jara; Hanby, Andrew; Grayson, Wayne; Feinmesser, Meora; Granter, Scott R; Seed, Paul; Warneke, Carla L; McKee, Phillip H; Calonje, Eduardo

2008-05-01

236

Clinico - diagnostic and therapeutic relevance of computed tomography scan of brain in children with partial seizures  

PubMed Central

Background: Therapeutic relevance of computed tomography (CT) in children with partial seizures is reported to be remarkably low (1-2%). However, in the developing countries where infections involving the nervous system are common, routine CT scan of brain may help in finding treatable causes of seizures. Objective: Aim of this study was to evaluate the significance of CT scan of brain in the management of children with partial seizures. Materials and Methods: Children with partial epilepsy, whose predominant seizure type was focal motor seizures, were included in the study. CT scan of brain was done in all children aged between 1 month and 12 years with partial seizures of unknown etiology prospectively. The clinical findings of these children were noted along with the CT findings. Results: Between August 2001 and July 2002, of the 200 children with seizure disorder 50 children who satisfied the inclusion criteria were included in the study. CT scan of brain was normal in 16 children (32%) and was abnormal in 34 children (68%). Twenty children (~60% of abnormal scan) had potentially correctable lesions: Tuberculoma (n = 13), neurocysticercosis (n = 3), and brain abscess (n = 4). Five children had changes representing static pathology that did not influence patient management. The clinical features correlated with CT findings in 78% children. Conclusion: Children with partial motor seizures have high probability of having abnormal findings on CT scan of brain, especially, neuro-infections which are potentially treatable. Therefore, CT scan brain should be carried out in all children with partial motor seizures especially, in developing countries.

Patel, Nehal H.; Jain, Ashish R.; Iyer, Vivek K.; Shah, Anand G.; Jain, Dipti A.; Shah, Anjanaben A.

2013-01-01

237

Pattern Analysis and Decision Support for Cancer through Clinico-Genomic Profiles  

NASA Astrophysics Data System (ADS)

Advances in genome technology are playing a growing role in medicine and healthcare. With the development of new technologies and opportunities for large-scale analysis of the genome, genomic data have a clear impact on medicine. Cancer prognostics and therapeutics are among the first major test cases for genomic medicine, given that all types of cancer are related with genomic instability. In this paper we present a novel system for pattern analysis and decision support in cancer. The system integrates clinical data from electronic health records and genomic data. Pattern analysis and data mining methods are applied to these integrated data and the discovered knowledge is used for cancer decision support. Through this integration, conclusions can be drawn for early diagnosis, staging and cancer treatment.

Exarchos, Themis P.; Giannakeas, Nikolaos; Goletsis, Yorgos; Papaloukas, Costas; Fotiadis, Dimitrios I.

238

Clinico-pathological Profile and Management of Sino-nasal Masses: A Prospective Study.  

PubMed

The work was planned to study-the demographic profile of sino-nasal masses, the clinical and radiological findings of sino-nasal masses and the correlation of the clinical and radiological findings with the histopathology. The study was conducted on the patients having sino-nasal masses admitted in Department of ENT, SMS Hospital, Jaipur from August 2008 to July 2010. The study was designed to evaluate the demographic distribution, clinicopathological features, radiological finding of sino-nasal masses and to evaluate the correlation of clinical and radiological findings with the histopathological diagnosis. Comparison of clinical and radiological findings in our study showed that in 83.07 % patients the radiological findings were consistent with that of clinical suspicion. In rest either the radiological findings were different or inconclusive. It is concluded that for proper evaluation of nasal polyps clinical, radiological and histopathological evaluation should be done in all the patients, where radiology provides a road map to the endoscopic surgeons and warns of any existing or impending complications. Histopathology always gives a confirmatory diagnosis. PMID:24427683

Rawat, Digvijay Singh; Chadha, Vineet; Grover, Mohnish; Ojha, Tarun; Verma, P C

2013-08-01

239

Clinico-pathological and biological prognostic variables in squamous cell carcinoma of the vulva.  

PubMed

Several clinical-pathological parameters have been related to survival of patients with invasive squamous cell carcinoma of the vulva, whereas few studies have investigated the ability of biological variables to predict the clinical outcome of these patients. The present paper reviews the literature data on the prognostic relevance of lymph node-related parameters, primary tumor-related parameters, FIGO stage, blood variables, and tissue biological variables. Regarding these latter, the paper takes into account the analysis of DNA content, cell cycle-regulatory proteins, apoptosis-related proteins, epidermal growth factor receptor [EGFR], and proteins that are involved in tumor invasiveness, metastasis and angiogenesis. At present, the lymph node status and FIGO stage according to the new 2009 classification system are the main predictors for vulvar squamous cell carcinoma, whereas biological variables do not have yet a clinical relevance and their role is still investigational. PMID:22015047

Gadducci, Angiolo; Tana, Roberta; Barsotti, Cecilia; Guerrieri, Maria Elena; Genazzani, Andrea Riccardo

2012-07-01

240

Clinico-radiological profile and nuances in the management of cervicomedullary junction intramedullary tumors  

PubMed Central

Background: Cervicomedullary junction (CMJ) intramedullary tumors comprise of tumors that often pose a surgical challenge even in the present era. Though classified under brainstem glioma CMJ tumors are well amenable for surgical resection and have a good outcome. Various factors are involved in the outcome of these patients following surgery and a proper pre-operative assessment is often required to reduce the morbidity and mortality. Materials and Methods: Patients admitted in the Department of Neurosurgery with a diagnosis of CMJ intramedullary tumors from January 2001 to January 2010 were included in the study. Patients were analyzed retrospectively regarding their symptomatology, clinical findings, radiology and outcome after surgery. All patients underwent pre-operative magnetic resonance imaging (MRI) and post-operatively all were managed in the neurosurgery intensive care unit for days to weeks or as dictated by the clinical condition of the patient. Results: A total of 32 patients were included in the present study. The number of males was 21 (65.6%) and females were 11 (34.4%) respectively. The mean age of presentation was 22.97 ± 9.8 years and the mean duration of pre-operative symptoms was 13.3 ± 12.9 months. The tumor had extension from the CMJ into the cervical region in 17 (53.1%) and into the medullary region in 14 (43.8%) patients. Tumor decompression was done in 9 (28.1%) patients and gross near total excision done in 23 (71.87%) patients. Conclusions: Cervicomedullary tumors are a subset of tumors quite distinct from the usual brainstem tumors. Patients having predominant cervical involvement present early and have less post-operative deficits. Those with predominantly more medullary involvement present late, hence have a much more morbid outcome. Though closely related to vital neural structures, surgery forms the mainstay of treatment. Adequate pre-operative planning and preparation of the patient along with intense post-operative monitoring and ventilatory assistance as and when required helps in a good surgical outcome.

Nair, Anup P.; Mehrotra, Anant; Das, Kuntal Kanti; Srivastava, Arun K.; Sahu, Rabi Narayan; Kumar, Raj

2014-01-01

241

Pulmonary function derangements in isolated or predominant mitral stenosis - Preoperative evaluation with clinico-hemodynamic correlation  

PubMed Central

Introduction It is well known that mitral stenosis (MS) is complicated by pulmonary hypertension (PH) of varying degrees. The hemodynamic derangement is associated with structural changes in the pulmonary vessels and parenchyma and also functional derangements. This article analyzes the pulmonary function derangements in 25 patients with isolated/predominant mitral stenosis of varying severity. Aims The aim of the study was to correlate the pulmonary function test (PFT) derangements (done by simple methods) with: a) patient demographics and clinical profile, b) severity of the mitral stenosis, and c) severity of pulmonary artery hypertension (PAH) and d) to evaluate its significance in preoperative assessment. Subjects and Methods This cross-sectional study was conducted in 25 patients with mitral stenosis who were selected for mitral valve (MV) surgery. The patients were evaluated for clinical class, echocardiographic severity of mitral stenosis and pulmonary hypertension, and with simple methods of assessment of pulmonary function with spirometry and blood gas analysis. The diagnosis and classification were made on standardized criteria. The associations and correlations of parameters, and the difference in groups of severity were analyzed statistically with Statistical Package for Social Sciences (SPSS), using nonparametric measures. Results The spirometric parameters showed significant correlation with increasing New York Heart Association (NYHA) functional class (FC): forced vital capacity (FVC, r = ?0.4*, p = 0.04), forced expiratory volume in one second (FEV1, r = ?0.5*, p = 0.01), FEV1/FVC (r = ?0.44*, p = 0.02), and with pulmonary venous congestion (PVC): FVC (r = ?0.41*, p = 0.04) and FEV1 (r = ?0.41*, p = 0.04). Cardiothoracic ratio (CTR) correlated only with FEV1 (r = ?0.461*, p = 0.02) and peripheral saturation of oxygen (SPO2, r = ?0.401*, p = 0.04). There was no linear correlation to duration of symptoms, mitral valve orifice area, or pulmonary hypertension, except for MV gradient with PCO2 (r = 0.594**, p = 0.002). The decreased oxygenation status correlated significantly with FC, CTR, PVC, and with deranged spirometry (r = 0.495*, p = 0.02). Conclusions PFT derangements are seen in all grades of severity of MS and correlate well with the functional class, though no significant linear correlation with grades of severity of stenosis or pulmonary hypertension. Even the early or mild derangements in pulmonary function such as small airway obstruction in the less severe cases of normal or mild PH can be detected by simple and inexpensive methods when the conventional parameters are normal. The supplementary data from baseline arterial blood gas analysis is informative and relevant. This reclassified pulmonary function status might be prognostically predictive.

Rajan, Rajesh; Faybushevich, Alexander Georgevich

2014-01-01

242

Increasing Trends of Leptospirosis in Northern India: A Clinico-Epidemiological Study  

PubMed Central

Background Leptospirosis, a zoonosis associated with potentially fatal consequences, has long been a grossly underreported disease in India. There is no accurate estimate of the problem of leptospirosis in non-endemic areas such as north India. Methods/Principal Findings In order to understand the clinical spectrum and risk factors associated with leptospirosis, we carried out a retrospective study in patients with acute febrile illness in north India over the last 5 years (January 2004 to December 2008). There was increased incidence of leptospirosis (11.7% in 2004 to 20.5% in 2008) as diagnosed by IgM ELISA and microscopic agglutination titer in paired acute and convalescent sera. The disease showed a peak during the rainy season (August and September). We followed up 86 cases of leptospirosis regarding their epidemiological pattern, clinical features, laboratory parameters, complications, therapy, and outcome. Mean age of patients was 32.6 years (2.5 years to 78 years) and males (57%) outnumbered females (43%). Infestation of dwellings with rats (53.7%), working in farm lands (44.2%), and contact with animals (62.1%) were commonly observed epidemiological risk factors. Outdoor workers including farmers (32.6%), labourers (11.6%), para-military personnel (2.3%), and sweepers (1.2%) were commonly affected. Modified Faine's criteria could diagnose 76 cases (88.3%). Renal failure (60.5%), respiratory failure (20.9%), the neuroleptospirosis (11.6%), and disseminated intravascular coagulation (DIC) (11.6%) were the commonest complications. Five patients died, giving a case fatality rate of 5.9%. Conclusions/Significance There has been a rapid rise in the incidence of leptospirosis in north India. Severe complications such as renal failure, respiratory failure, neuroleptospirosis, and DIC are being seen with increasing frequency. Increased awareness among physicians, and early diagnosis and treatment, may reduce mortality due to leptospirosis.

Sethi, Sunil; Sharma, Navneet; Kakkar, Nandita; Taneja, Juhi; Chatterjee, Shiv Sekhar; Banga, Surinder Singh; Sharma, Meera

2010-01-01

243

[Clinico-radiological assessment of the effectiveness of pathogenetic therapy in glomerulonephritis in children].  

PubMed

Liver scintigraphy and hepatobiliary scintigraphy were employed for the assessment of kidney and liver function in children with glomerulonephritis at the stages of pathogenetic therapy with chlorambucil and prednisolone. Noticeable disturbance of nephron and hepatocytic function at the climax of clinical manifestations of the nephrotic syndrome was established. The use of maximum and maintenance doses of prednisolone and chlorambucil resulted in significant improvement of clinical and radionuclide indices. However the effective renal plasma flow and the rate of passage of the radionuclide from the plasma into the proximal canalicular cell did not return to normal even in the catamnesis 1 year after the discontinuation of treatment in 35% of the patients with chronic glomerulonephritis. The use of maximum doses of cytostatics in 98.5% of the children produced no damaging effect on the hepatocyte, in 1.5% of the children the authors observed the development of drug hepatitis. Hypokinetic dyskinesia of the gall bladder was detected in the overwhelming majority of the patients therefore drugs improving bile secretion should be recommended as part of treatment. PMID:3550352

Bagdasarova, I V; Mil'ko, V I; Moskalenko, N I; Tanasichuk-Gadzhieva, N V

1987-03-01

244

Clinico-pathological features of a series of 11 oncocytic endocrine tumours of the pancreas  

Microsoft Academic Search

Oncocytic changes may occur very infrequently in neuroendocrine tumours. To estimate the prevalence, pathological features and clinical behaviour of oncocytic endocrine tumours of the pancreas, we reviewed a series of 227 lesions from two institutions. Eleven cases with predominant oncocytic features were selected, representing 4.85% of the whole series. The morphological features and immunophenotype of such tumours did not differ

Marco Volante; Stefano La Rosa; Isabella Castellano; Giovanna Finzi; Carlo Capella; Gianni Bussolati

2006-01-01

245

Clinico-neurological investigations in the fra(X) form of mental retardation  

Microsoft Academic Search

A clinical, neurological and electroencephalographic investigation was undertaken in 29 previously cytogenetically verified hemizygous males with the fra(X) form of mental retardation (age range 3.5 to 59 years); in addition, 6 heterozygous females were examined. All male patients displayed the known physical aspects of this syndrome together with associated abnormalities of the palate, skeleton, connective tissue and endocrine system. The

P. Vieregge; U. Froster-Iskenius

1989-01-01

246

A clinico-epidemiological study of ulcerative sexually transmitted diseases with human immunodeficiency virus status  

PubMed Central

Introduction: Genital ulcerative diseases are a major public health problem. The advert of human immunodeficiency virus (HIV)/AIDS over the past 25 years has deepened the scope of morbidity, mortality, and various forms of clinical presentations of sexually transmitted diseases (STDs). Materials and Methods: A total of 50 cases having Genital ulcerative diseases and STD reporting to STD clinic during the period of the year from November 2005 to December 2006 were included and detailed history and clinical examination were carried out and provisional diagnosis is made. Laboratory confirmation of clinically diagnosed cases was done using laboratory tests such as S. HIV, venereal disease research laboratory, Tzanck smear, gram stain, and Giemsa stain. Result: In the present study, the incidence of herpes progenitalis was (38%) followed by primary syphilis (32%), chancroid (26%), lymphogranuloma venereum (02%), and genital scabies (02%). HIV sero-positivity was detected in 12% (n = 6) cases. Conclusion: HIV was found to be more common among genital ulcer disease patients, especially syphilis and genital herpes.

Mehta, Bhavesh

2014-01-01

247

Clinico-immunological response to intratumoral versus intravenous neoadjuvant chemotherapy in advanced pediatric solid malignancies  

PubMed Central

Background: There is minimal literature on the use of intralesional chemotherapy in the pediatric age group. We undertook this present study to evaluate the two modalities (intratumoral and intravenous) of giving chemotherapy in terms of toxicity of chemotherapy, hematological parameters, efficacy of chemotherapy in reduction in volume of the tumor as well as resectability of tumor with special emphasis on immunological parameters. Materials and Methods: Advanced cases of Wilms’ tumor and Neuroblastoma were included in the study. Intratumoral chemotherapy was given through 25 G spinal needle under aseptic precautions and ultrasound guidance in the same dose as in systemic chemotherapy. Intravenous group was given chemotherapy in the usual way. Reassessment was carried out after every course of chemotherapy. Results: Group A included 16 cases of Wilms’ tumor and 6 cases of neuroblastoma. In group B, there were 14 cases of Wilms’ tumor and 8 of neuroblastoma. Vomiting, diarrhea, mucositis, and thrombophlebitis were more common in the intravenous group (P<0.05). The fall in Immunoglobulin A, Immunogloblulin G, Immunoglobulin M, and T-cell rosetting was more common in the intravenous group (P<0.05). Seventy percent of patients had completely resectable tumor at the end of 6 doses of intratumoral chemotherapy as compared to 50% resectability in the intravenous group (P<0.05). Conclusion: Intratumoral chemotherapy, besides causing less of the adverse effects and increasing the resecability rate, also causes less suppression of the immune system. This may be offered as an alternative safe and effective modality of treatment for advanced solid tumors.

Kumar, Vijayendra; Ramaswami, Nandini; Pandey, Anand; Shukla, Ram Chandra; Sen, Maloy Ranjan; Sharma, Shiv Prasad; Gupta, Dinesh Kumar; Gangopadhyay, Ajay Narayan

2013-01-01

248

Clinico-pathological study in patients with transverse-sigmoid sinus dural arteriovenous malformations  

Microsoft Academic Search

Treatment modalities and histopathological findings of transverse-sigmoid sinus dural arteriovenous malformations (AVMs) were evaluated. Twenty-eight patients with this disease were treated with a variety of treatment modalities. Ten patients were treated surgically. Of these patients, 3 were treated with sinus isolation, 4 with sinus removal and 3 with palliative operation. Ten patients underwent endovascular surgery. Of these patients, 3 were

M Nishijima; N Kuwayama; S Endo; A Takaku

1998-01-01

249

IgG4-related meningeal disease: clinico-pathological features and proposal for diagnostic criteria.  

PubMed

IgG4-related disease has evolved from originally being recognized as a form of pancreatitis to encompass diseases of numerous organs including the hypophysis and one reported case of dural involvement. A search of the University of Virginia, Division of Neuropathology files for 10 years identified ten cases of unexplained lymphoplasmacytic meningeal inflammation that we then evaluated using immunohistochemical stains for IgG4 and IgG. Ten control cases including sarcoidosis (4), tuberculosis (1), bacterial abscess (2), Langerhans cell histiocytosis (2), and foreign body reaction (1) were also examined. The number of IgG4-positive plasma cells was counted in five high power fields (HPFs) and an average per HPF was calculated. Cases that contained greater than ten IgG4-positive cells/HPF were considered to be IgG4-related. Five of the study cases met these criteria, including one case of leptomeningeal inflammation. All cases exhibited the typical histological features of IgG4-related disease including lymphoplasmacytic inflammation, fibrosis, and phlebitis. The dural-based lesions appear to represent a subset of the cases historically diagnosed as idiopathic hypertrophic pachymeningitis. While the leptomeningeal process most closely resembles non-vasculitic autoimmune inflammatory meningoencephalitis. Given these findings, IgG4-related meningitis should be considered in the differential diagnosis of meningeal inflammatory lesions after stringent clinical and histologic criteria are used to rule out other possible diagnoses. PMID:20844883

Lindstrom, Katherine M; Cousar, John B; Lopes, M Beatriz S

2010-12-01

250

Clinico-pathological studies of Plasmodium falciparum and Plasmodium vivax - malaria in India and Saudi Arabia.  

PubMed

Malaria is one of the most devastating diseases of tropical countries with clinical manifestations such as anaemia, splenomegaly, thrombocytopenia, hepatomegaly and acute renal failures. In this study, cases of thrombocytopenia and haemoglobinemia were more prominent in subjects infected with Plasmodium falciparum (Welch, 1897) than those with Plasmodium vivax (Grassi et Feletti, 1890). However, anaemia, jaundice, convulsions and acute renal failure were significantly high (3-4 times) in subjects infected with P. falciparum than those infected with P. vivax. The incidence of splenomegaly and neurological sequelae were 2 and 6 times higher in P. falciparum infections compared to the infections of P. vivax. Both in P. vivax and P. falciparum malaria, the cases of splenomegaly, jaundice and neurological sequelae were almost double in children (<10 years) compared to older patients. The liver enzymes were generally in normal range in cases of low and mild infections. However, the AST, ALT, ALP activities and serum bilirubin, creatinine, and the urea content were increased in P. falciparum and P. vivax malaria patients having high parasitaemia, confirming liver dysfunction and renal failures in few cases of severe malaria both in India and Saudi Arabia. PMID:24827088

Khan, Wajihullah; Zakai, Haytham A; Umm-E-Asma

2014-06-01

251

[Clinico-radiographic evaluation of the state of the spine in stomach and duodenal diseases].  

PubMed

Data are given on the condition of the thoracic spine of 465 patients with certain gastric and duodenal diseases. Degenerative-dystrophic lesions (spondylosis deformans and intervertebral osteochondrosis) of the thoracic spine together with osteoarthritis deformans of the costovertebral and costotransverse articulations lead to neurodystrophy of the gastric and duodenal mucosa through chronic stimulation by osteophytes of the thoracic sympathetic ganglia. Disorders of gastric and duodenal motor activity are also important. The attendant reflux gastritis is stipulated by reflux of the intestinal contents into the gastric lumen. Condition of the stomach and duodenum can be improved by relieving changes in the spine. PMID:2716242

Dmitriev, A E; Arapov, N A

1989-01-01

252

[Clinico-virologic analysis of the incidence of tick-borne encephalitis in the Khabarovskh region].  

PubMed

In the Soviet Union the incidence of tick-borne encephalitis is the highest in the geographical and epidemiological region adjacent to the Amur River (zone of coniferous and broad-leaved forests). 60.43% of all cases fall on years of cyclic rise of the disease incidence. Strains of the tick-borne encephalitis virus can be isolated with a more significant frequency from the blood of encephalitis-sick patients and from the brain of the dead in the years of disease outbreaks. PMID:7234258

Vereta, L A; Aleksandrov, V I; Nikolaeva, S P; Vladimirova, T P; Kazantseva, S I

1981-01-01

253

40Ar/39Ar laserprobe study of the Day Nui Con Voi Metamorphic Complex, Vietnam  

NASA Astrophysics Data System (ADS)

The garnet bearing gneiss within the Day Nui Con Voi (DNCV) Metamorphic Complex along the Red River Shear Zone (RRSZ) in North Vietnam, recorded a long tectonothermal history since the Indosinian orogeny. In-situ 40Ar/39Ar laserprobe study of biotite inclusions within garnet porphyroblasts and matrix biotites, combining with microstructural and scanning electron microscopy (SEM) studies, deciphered the timing and duration of thermal events. Biotites from two matrix fabrics from different deformation events show approximately similar 40Ar/39Ar age ranges in 19-24Ma, depending grain size. These matrix biotite ages are best interpreted to record a rapid cooling event associating with the left-lateral shearing event of the RRSZ. Whereas, all biotite inclusions exhibit age zoning patterns with 40Ar/39Ar ages gradually increase from 17 Ma to more than 28 Ma according to their diffusion pathways. These age variations may have resultant from a combination effect of argon retention by garnet shielding, which provides a best recorder to the metamorphic event, and argon diffusion loss along the deformed cracks during the shearing event of the RRSZ. Diffusion modeling of these age zoning indicated that the total duration of argon diffusion loss may have lasted for nearly 9 Myr and argon diffusion may have occurred sometime around 24.5Ma. These results are generally in good agreement with previous interpretation, but provide better resolution of 40Ar/39Ar age data for deciphering the history of thermal event in the DNCV Metamorphic Complex and the left-lateral shearing event of the RRSZ in Vietnam, as well.

Wu, C.; Lo, C.; Yeh, M.; Chung, S.; Lee, T.

2009-12-01

254

Iliac crest autograft versus alternative constructs for anterior cervical spine surgery: Pros, cons, and costs  

PubMed Central

Background: Grafting choices available for performing anterior cervical diskectomy/fusion (ACDF) procedures have become a major concern for spinal surgeons, and their institutions. The “gold standard”, iliac crest autograft, may still be the best and least expensive grafting option; it deserves to be reassessed along with the pros, cons, and costs for alternative grafts/spacers. Methods: Although single or multilevel ACDF have utilized iliac crest autograft for decades, the implant industry now offers multiple alternative grafting and spacer devices; (allografts, cages, polyether-etherketone (PEEK) amongst others). While most studies have focused on fusion rates and clinical outcomes following ACDF, few have analyzed the “value-added” of these various constructs (e.g. safety/efficacy, risks/complications, costs). Results: The majority of studies document 95%-100% fusion rates when iliac crest autograft is utilized to perform single level ACDF (X-ray or CT confirmed at 6-12 postoperative months). Although many allograft studies similarly quote 90%-100% fusion rates (X-ray alone confirmed at 6-12 postoperative months), a recent “post hoc analysis of data from a prospective multicenter trial” (Riew KD et. al., CSRS Abstract Dec. 2011; unpublished) revealed a much higher delayed fusion rate using allografts at one year 55.7%, 2 years 87%, and four years 92%. Conclusion: Iliac crest autograft utilized for single or multilevel ACDF is associated with the highest fusion, lowest complication rates, and significantly lower costs compared with allograft, cages, PEEK, or other grafts. As spinal surgeons and institutions become more cost conscious, we will have to account for the “value added” of these increasingly expensive graft constructs.

Epstein, Nancy E.

2012-01-01

255

(Con)text-specific effects of visual dysfunction on reading in posterior cortical atrophy.  

PubMed

Reading deficits are a common early feature of the degenerative syndrome posterior cortical atrophy (PCA) but are poorly understood even at the single word level. The current study evaluated the reading accuracy and speed of 26 PCA patients, 17 typical Alzheimer's disease (tAD) patients and 14 healthy controls on a corpus of 192 single words in which the following perceptual properties were manipulated systematically: inter-letter spacing, font size, length, font type, case and confusability. PCA reading was significantly less accurate and slower than tAD patients and controls, with performance significantly adversely affected by increased letter spacing, size, length and font (cursive < non-cursive), and characterised by visual errors (69% of all error responses). By contrast, tAD and control accuracy rates were at or near ceiling, letter spacing was the only perceptual factor to influence reading speed in the same direction as controls, and, in contrast to PCA patients, control reading was faster for larger font sizes. The inverse size effect in PCA (less accurate reading of large than small font size print) was associated with lower grey matter volume in the right superior parietal lobule. Reading accuracy was associated with impairments of early visual (especially crowding), visuoperceptual and visuospatial processes. However, these deficits were not causally related to a universal impairment of reading as some patients showed preserved reading for small, unspaced words despite grave visual deficits. Rather, the impact of specific types of visual dysfunction on reading was found to be (con)text specific, being particularly evident for large, spaced, lengthy words. These findings improve the characterisation of dyslexia in PCA, shed light on the causative and associative factors, and provide clear direction for the development of reading aids and strategies to maximise and sustain reading ability in the early stages of disease. PMID:24841985

Yong, Keir X X; Shakespeare, Timothy J; Cash, Dave; Henley, Susie M D; Warren, Jason D; Crutch, Sebastian J

2014-08-01

256

Do Patient-perceived Pros and Cons of Opioids Predict Sustained Higher-Dose Use?  

PubMed Central

Objectives Chronic opioid therapy (COT) is associated with various adverse outcomes, especially at higher doses, yet little is known about predictors of sustained higher-dose COT. This study aimed to ascertain, among higher-dose COT patients, the association of patient-perceived pros and cons of opioids with continued higher-dose use 1 year later. Methods Patients (N = 1229) in 2 large health plans prescribed ? 50 mg morphine-equivalent dose (MED) per day for chronic non-cancer pain completed a survey assessing opioid benefits and harms. The Prescribed Opioid Difficulties Scale questionnaire assessed psychosocial problems, concerns, benefits, and side effects related to opioid use. Logistic regression models estimated the associations of the reported benefits and problems with higher-dose continuation (? 50 mg MED/d) versus dose reduction (< 50 mg MED/d) 1 year later. Results Over 80% of participants continued higher-dose opioid use at 1 year, regardless of reported problems, concerns, side effects, pain reduction, or perceived helpfulness. Higher scores on the Prescribed Opioid Difficulties Scale Problems subscale (odds ratio = 0.79, 95% confidence interval, 0.68–0.92) and Concerns subscale (odds ratio = 0.76, 95% confidence interval, 0.65–0.90) were negatively associated with higher-dose use 1 year later. Other baseline measures (opioid helpfulness, reduction in pain, number of side effects, and side effect bothersomeness) were not significantly associated with continued higher-dose use. Discussion The large majority of patients continued using higher-dose opioids regardless of baseline characteristics. These findings suggest the difficulty of reducing opioid dose among chronic higher-dose opioid users.

Thielke, Stephen M.; Turner, Judith A.; Shortreed, Susan M.; Saunders, Kathleen; LeResche, Linda; Campbell, Cynthia I.; Weisner, Constance C.; Korff, Michael V.

2013-01-01

257

Strain Rate into South American Plate by SIRGAS-CON Geodetic Observations  

NASA Astrophysics Data System (ADS)

In this study were investigated the surface strain rates computed from the direction variations and velocity values estimated from the coordinates of the continuous monitoring geodetic network called SIRGAS-CON. That investigation was done using points located in the South American plate. The determination of the strain rate was based on the Finite Element method using points defined by Delaunay triangulation (sub-networks). Each one of sub-networks was considered as an homogeneous solid body. Using these methods was possible to separate the strain from the plate movement. The results showed that there are differences of strain rate along the South American plate. From the results were suggest that near to the west board of the plate, the strain is more significant, as expected, because this region is near to one area where Nazca Plate subduct South American Plate. It was detected that the contraction region founded in this area coincides whit the region where occurs most of earthquakes of greater magnitude. Far from the board, there are some areas with anomalies of significant strain of extension and contraction that can be originated by differences of stress aligned with different geological composites. By the results, It may be concluded that large surface movements occur in regions with more heterogeneous geological structures and multiple event of rupture, that large earthquakes arising from large tectonic activity into South American Plate are concentrated in areas with contraction strain rates predominantly oriented towards northeast-southwest, that significant amounts of elastic strain can be accumulated over geological structures away from fault plate boundary and that the behavior of contractions and extensions are similar to that found by different researches involving geophysical studies. Dilation and principal components of strain rate

Marotta, G. S.; Franca, G. S.; Monico, J. G.; Fuck, R. A.

2013-05-01

258

Strain rate of the South American lithospheric plate by SIRGAS-CON geodetic observations  

NASA Astrophysics Data System (ADS)

A multiyear solution of the SIRGAS-CON network was used to estimate the strain rates of the earth surface from the changing directions of the velocity vectors of 140 geodetic points located in the South American plate. The strain rate was determined by the finite element method using Delaunay triangulation points that formed sub-networks; each sub-network was considered a solid and homogeneous body. The results showed that strain rates vary along the South American plate and are more significant on the western portion of the plate, as expected, since this region is close to the subduction zone of the Nazca plate beneath the South American plate. After using Euler vectors to infer Nazca plate movement and to orient the velocity vectors of the South American plate, it was possible to estimate the convergence and accommodation rates of the Nazca and South American plates, respectively. Strain rate estimates permitted determination of predominant contraction and/or extension regions and to establish that contraction regions coincide with locations with most of the high magnitude seismic events. Some areas with extension and contraction strains were found to the east within the stable South American plate, which may result from different stresses associated with different geological characteristics. These results suggest that major movements detected on the surface near the Nazca plate occur in regions with more heterogeneous geological structures and multiple rupture events. Most seismic events in the South American plate are concentrated in areas with predominant contraction strain rates oriented northeast-southwest; significant amounts of elastic strain can be accumulated on geological structures away from the plate boundary faults; and, behavior of contractions and extensions is similar to what has been found in seismological studies.

Marotta, Giuliano Sant'Anna; França, George Sand; Galera Monico, João Francisco; Fuck, Reinhardt Adolfo; Oswaldo de Araújo Filho, José

2013-11-01

259

Structural analysis of ConBr reveals molecular correlation between the carbohydrate recognition domain and endothelial NO synthase activation.  

PubMed

Diocleinae lectins are highly homologous in their primary structure which features metal binding sites and a carbohydrate recognition domain (CRD). Differences in the biological activity of legume lectins have been widely investigated using hemagglutination inhibition assays, isothermal titration microcalorimetry and co-crystallization with mono- and oligosaccharides. Here we report a new lectin crystal structure (ConBr) extracted from seeds of Canavalia brasiliensis, predict dimannoside binding by docking, identify the ?-aminobutyric acid (Abu) binding pocket and compare the CRD of ConBr to that of homologous lectins. Based on the hypothesis that the carbohydrate affinity of lectins depends on CRD configuration, the relationship between tridimensional structure and endothelial NO synthase activation was used to clarify differences in biological activity. Our study established a correlation between the position of CRD amino acid side chains and the stimulation of NO release from endothelium. PMID:21530490

Bezerra, Eduardo Henrique Salviano; Rocha, Bruno Anderson Matias; Nagano, Celso Shiniti; Bezerra, Gustavo de Arruda; Moura, Tales Rocha de; Bezerra, Maria Júlia Barbosa; Benevides, Raquel Guimarães; Sampaio, Alexandre Holanda; Assreuy, Ana Maria Sampaio; Delatorre, Plínio; Cavada, Benildo Sousa

2011-05-20

260

ConReg-R: Extrapolative recalibration of the empirical distribution of p-values to improve false discovery rate estimates  

PubMed Central

Background False discovery rate (FDR) control is commonly accepted as the most appropriate error control in multiple hypothesis testing problems. The accuracy of FDR estimation depends on the accuracy of the estimation of p-values from each test and validity of the underlying assumptions of the distribution. However, in many practical testing problems such as in genomics, the p-values could be under-estimated or over-estimated for many known or unknown reasons. Consequently, FDR estimation would then be influenced and lose its veracity. Results We propose a new extrapolative method called Constrained Regression Recalibration (ConReg-R) to recalibrate the empirical p-values by modeling their distribution to improve the FDR estimates. Our ConReg-R method is based on the observation that accurately estimated p-values from true null hypotheses follow uniform distribution and the observed distribution of p-values is indeed a mixture of distributions of p-values from true null hypotheses and true alternative hypotheses. Hence, ConReg-R recalibrates the observed p-values so that they exhibit the properties of an ideal empirical p-value distribution. The proportion of true null hypotheses (?0) and FDR are estimated after the recalibration. Conclusions ConReg-R provides an efficient way to improve the FDR estimates. It only requires the p-values from the tests and avoids permutation of the original test data. We demonstrate that the proposed method significantly improves FDR estimation on several gene expression datasets obtained from microarray and RNA-seq experiments. Reviewers The manuscript was reviewed by Prof. Vladimir Kuznetsov, Prof. Philippe Broet, and Prof. Hongfang Liu (nominated by Prof. Yuriy Gusev).

2011-01-01

261

Genotyping the HFE gene by melting point analysis with the LightCycler system: Pros and cons  

Microsoft Academic Search

The assay that combines rapid-cycle PCR with allele-specific fluorescent probe melting profiles performed on the Roche Diagnostics LightCycler is commonly employed for genotyping the HFE gene.We report three illustrative cases of the pros and cons of this method. In two cases, atypical melting curves allows the identification of new DNA substitutions in the HFE gene, whereas, in the third case,

V. Bach; M. J. Barceló; A. Altés; A. Remacha; J. Félez; M. Baiget

2006-01-01

262

CHILES Con Pol: Probing galaxy evolution, the dark Universe, and cosmic magnetism with a deep 1000 hour Jansky VLA survey  

NASA Astrophysics Data System (ADS)

We recently started a 1000 hour campaign to observe 0.2 square degrees of the COSMOS field in full polarization continuum at 1.4 GHz with the Jansky VLA, as part of a joint program with the spectral line COSMOS HI Large Extragalactic Survey (CHILES). When complete, we expect our CHILES Continuum Polarization (CHILES Con Pol) survey to reach an unprecedented SKA-era sensitivity of 0.7 uJy per 4 arcsecond FWHM beam. Here we present the key goals of CHILES Con Pol, which are to (i) produce a source catalog of legacy value to the astronomical community, (ii) measure differential source counts in total intensity, linear polarization, and circular polarization in order to constrain the redshift and luminosity distributions of source populations, (iii) perform a novel weak lensing study using radio polarization as an indicator of intrinsic alignment to better study dark energy and dark matter, and (iv) probe the unknown origin of cosmic magnetism by measuring the strength and structure of intergalactic magnetic fields in the filaments of large scale structure. The CHILES Con Pol source catalog will be a useful resource for upcoming wide-field surveys by acting as a training set for machine learning algorithms, which can then be used to identify and classify radio sources in regions lacking deep multiwavelength coverage.

Hales, Christopher A.; Chiles Con Pol Collaboration

2014-04-01

263

Integrated Concentration in Science (iCons): Undergraduate Education Through Interdisciplinary, Team-Based, Real-World Problem Solving  

NASA Astrophysics Data System (ADS)

Attitude, Skills, Knowledge (ASK) -- In this order, these are fundamental characteristics of scientific innovators. Through first-hand practice in using science to unpack and solve complex real-world problems, students can become self-motivated scientific leaders. This presentation describes the pedagogy of a recently developed interdisciplinary undergraduate science education program at the University of Massachusetts Amherst focused on addressing global challenges with scientific solutions. Integrated Concentration in Science (iCons) is an overarching concentration program that supplements the curricula provided within each student's chosen major. iCons is a platform for students to perform student-led research in interdisciplinary collaborative teams. With a schedule of one course per year over four years, the cohort of students move through case studies, analysis of real-world problems, development of potential solutions, integrative communication, laboratory practice, and capstone research projects. In this presentation, a track emphasizing renewable energy science is used to illustrate the iCons pedagogical methods. This includes discussion of a third-year laboratory course in renewable energy that is educationally scaffolded: beginning with a boot camp in laboratory techniques and culminating with student-designed research projects. Among other objectives, this course emphasizes the practice of using reflection and redesign, as a means of generating better solutions and embedding learning for the long term.

Tuominen, Mark

2013-03-01

264

Deformation sequences of the Day Nui Con Voi metamorphic belt, northern Vietnam  

NASA Astrophysics Data System (ADS)

The correlation of structure, microstructure and metamorphic assemblages is of fundamental importance to the understanding of the complex tectonic history and kinematics of the Day Nui Con Voi (DNCV) metamorphic belt in Vietnam along the Ailao Shan-Red River (ASRR) shear zone as it provides constraints on the relative timing of the deformation, kinematics and metamorphism. High-grade metamorphic rocks of amphibolite faces showed consistent deformation sequences of three folding events followed by one brittle deformation through all four cross sections from Lao Cai to Viet Tri indicated the DNCV belt experienced similar deformation condition throughout its length. The first deformation event, D1, produced up-right folds (locally preserved) with sub-vertical, NE-SW striking axial planes with dextral sense of shear probably formed during the early phase of the lowermost Triassic Indosinian orogeny. Followed by this compressional event is a gravitational collapsing event, D2, which is the major deformation and metamorphic event characterized by kyanite grade metamorphism and large scale horizontal folds with NW-SE (320) striking sub-horizontal axial pane showing sinsistral sense of shear most likely formed during the Oligocene-Miocene SE extrusion of Indochina peninsula. The 3rd folding event, D3, is a post-metamorphism doming event with NW-SE (310) striking sub-vertical axial plane that folded/tilted the once sub-horizontal D2 axial planes into shallowly (<30 degrees) NE dipping on the NE limb, and SW dipping on the SW limb possibly due to left-lateral movement of the N-S trending Xian Shui He fault system in Mid-Miocene. The outward decreasing of the metamorphic grade from kyanite to garnet then biotite indicated the D3 occurred post metamorphism. Reactivation of the sub-horizontal D2 fold axial planes showed dextral sense of shear possibly due to Late Miocene-Pliocene right-lateral movement of the ASRR shear zone. This right lateral movement continuously deformed the DNCV with brittle fractures such as joints and normal faults (D4) striking NE-SW to E-W and NW-SE.

Yeh, M. W.; Lee, T. Y.; Lo, C. H.; Chung, S. L.; Lan, C. Y.; Lee, J. C.; Lin, T. S.; Lin, Y. J.

2003-04-01

265

La implementación de acuerdos comerciales preferenciales en América Latina: Las experiencias de CH, CR, ES, PE en la implementación de las disposiciones sobre acceso a mercados en el marco de los tratados de libre comercio con Estados Unidos  

Microsoft Academic Search

Este estudio abordará los desafíos y dificultades asociadas con la implementación y administración de las disposiciones sobre acceso a mercados, con especial énfasis en aquellas relacionadas con aduanas y facilitación del comercio. El análisis se realizará para los Tratados de Libre Comercio de Chile - EE.UU; Perú - EE.UU y para el Tratado de Libre Comercio entre Estados Unidos, Centroamérica

Juan Luis Zuñiga; Brian Rankin Staples

2011-01-01

266

Antidepressant-like effect of Canavalia brasiliensis (ConBr) lectin in mice: Evidence for the involvement of the glutamatergic system.  

PubMed

Lectins recognize and reversibly bind to carbohydrates attached to proteins and lipids modulating a variety of signaling pathways. We previously showed that ConBr, a lectin from Canavalia brasiliensis seeds, produced an antidepressant-like effect in mice by modulating the monoaminergic neurotransmitter systems. Moreover, ConBr blocked hippocampal neurotoxicity induced by quinolinic acid in vivo and by glutamate in vitro, suggesting a neuroprotective activity of ConBr via glutamatergic system modulation. Therefore, the present study was undertaken to investigate the involvement of the N-methyl-d-aspartate (NMDA) receptor and the l-arginine-nitric oxide (NO) pathway in the antidepressant-like action displayed by ConBr in the forced swimming test (FST). With the aim of verifying the involvement of NMDA receptors in the antidepressant-like effect of ConBr (10?g/site, i.c.v.), an intracerebroventricular (i.c.v.) pretreatment with either NMDA (0.1pmol/site) or d-serine (30?g/site) was carried out. The results show that both treatments blocked the effect of ConBr. Furthermore, the coadministration of subeffective doses of the NMDA receptor antagonist MK-801 (0.001mg/kg, i.p.) or ketamine (0.1mg/kg, i.p.; NMDA receptor antagonist) and ConBr (0.1?g/site, i.c.v.) caused a synergistic reduction in immobility time. In order to verify the dependence of the l-arginine-NO-cGMP pathway, on the effect of ConBr in the FST, a pretreatment with the NO precursor, l-arginine (750mg/kg, i.p.), or the PDE5 inhibitor, sildenafil (5mg/kg, i.p.), was performed. Both drugs abolished the antidepressant-like action of ConBr. Finally, the administration of subeffective doses of the soluble guanylate cyclase inhibitor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ; 30pmol/site, i.c.v.) and ConBr (0.1?g/site, i.c.v.) produced a synergistic antidepressant-like effect in the FST. Taken together, the results suggest that the antidepressant-like effect of ConBr in the FST involves NMDA receptor inhibition and reduction in NO and cGMP synthesis. PMID:24650588

Rieger, Débora K; Costa, Ana Paula; Budni, Josiane; Moretti, Morgana; Barbosa, Sabrina Giovana Rocha; Nascimento, Kyria S; Teixeira, Edson H; Cavada, Benildo S; Rodrigues, Ana Lúcia S; Leal, Rodrigo B

2014-07-01

267

hI-con1, a factor VII-IgGFc chimeric protein targeting tissue factor for immunotherapy of uterine serous papillary carcinoma  

Microsoft Academic Search

BACKGROUND:Uterine serous papillary adenocarcinoma (USPC) is a highly aggressive variant of endometrial cancer. Human immuno- conjugate molecule (hI-con1) is an antibody-like molecule targeted against tissue factor (TF), composed of two human Factor VII (fVII) as the targeting domain, fused to human immunoglobulin (Ig) G1 Fc as an effector domain. We evaluated hI-con1 potential activity against primary chemotherapy-resistant USPC cell lines

E Cocco; Z Hu; C E Richter; S Bellone; F Casagrande; M Bellone; P Todeschini; G Krikun; D-A Silasi; M Azodi; P E Schwartz; T J Rutherford; N Buza; S Pecorelli; C J Lockwood; A D Santin

2010-01-01

268

No adverse effects of simultaneous vaccination with the immunocontraceptive GonaCon and a commercial rabies vaccine on rabies virus neutralizing antibody production in dogs.  

PubMed

Parenteral vaccination campaigns are integral to the elimination of canine rabies. To maximize herd immunity in dogs, immunocontraception provided at the time of rabies vaccination should reduce fecundity and dog abundance. GonaCon has been used successfully as an immunocontraceptive in a variety of mammals, and by inference, the dog would be an ideal candidate for testing. As an initial step in evaluating a combination-vaccination program, we assessed the effects of GonaCon on rabies virus neutralizing antibody production in dogs after administration of a veterinary rabies vaccine. Eighteen feral/free ranging dogs were included in this initial study: six were given GonaCon only, six were given rabies vaccination only, and six received GonaCon and rabies vaccination. Antibody levels were evaluated over 82 days. The use of the immunocontraceptive GonaCon did not affect the ability of dogs to seroconvert in response to the rabies vaccine. Thus, GonaCon provides a potential immunocontraceptive for use in combination with rabies vaccine to increase herd immunity and address dog population over abundance to better manage rabies. PMID:19925955

Bender, Scott C; Bergman, David L; Wenning, Krista M; Miller, Lowell A; Slate, Dennis; Jackson, Felix R; Rupprecht, Charles E

2009-11-27

269

Lectin from Canavalia brasiliensis seeds (ConBr) is a valuable biotechnological tool to stimulate the growth of Rhizobium tropici in vitro.  

PubMed

To study the interactions between a Rhizobium tropici strain and lectins isolated from the seeds of Canavalia ensiformis (ConA) and Canavalia brasiliensis (ConBr), a lectin fluorescence assay was performed. In addition, an experiment was designed to evaluate the effect of the two lectins on bacterial growth. Both lectins were found to bind to R. tropici cells, but the interactions were inhibited by D-mannose. Interestingly, only ConBr stimulated bacterial growth in proportion to the concentrations used (15.6-500 ?g/mL), and the bacterial growth stimulation was inhibited by D-mannose as well. Structure/Function analyses by bioinformatics were carried out to evaluate the volume and carbohydrate recognition domain (CRD) configuration of ConA and ConBr. The difference of spatial arrangement and volume of CRD may indicate the variation between biological activities of both lectins. The results suggest that ConBr could be a promising tool for studies focusing on the interactions between rhizobia and host plants. PMID:22565477

de Vasconcelos, Mayron Alves; Cunha, Claudio Oliveira; Arruda, Francisco Vassiliepe Sousa; Carneiro, Victor Alves; Mercante, Fabio Martins; do Nascimento Neto, Luiz Gonzaga; de Sousa, Giselly Soares; Rocha, Bruno Anderson Matias; Teixeira, Edson Holanda; Cavada, Benildo Sousa; dos Santos, Ricardo Pires

2012-01-01

270

Aryl hydrocarbon receptor plays protective roles in ConA-induced hepatic injury by both suppressing IFN-? expression and inducing IL-22.  

PubMed

The aryl hydrocarbon receptor (AhR), a ligand-activated nuclear transcription factor, is known to mediate the toxic and carcinogenic effects of various environmental pollutants, while AhR has been shown to protect animals from various types of tissue injury. ConA-induced hepatitis is known as a mouse model of acute liver injury. Here, we found a protective role of AhR in ConA-induced hepatitis. AhR is induced in the liver during ConA-induced hepatitis, and Ahr (-/-) mice were highly sensitive to this model. Bone marrow chimera experiments indicate that Ahr (-/-) hematopoietic cells are responsible for hypersensitivity to ConA-induced hepatitis. We found that IFN-? from invariant NKT cells was up-regulated and IL-22 from innate lymphoid cells (ILCs) was abolished in Ahr (-/-) mice. In addition, IL-22 production was still observed in Rag2 (-/-) mice but it was severely reduced in Ahr (-/-) Rag2 (-/-) mice. ConA-induced IL-22 production was also dependent on retinoic acid-related orphan receptor ?t. These results show that AhR has crucial protective roles in ConA-induced liver injury via promoting IL-22 production from ILCs and suppressing IFN-? expression from NKT cells. PMID:24150244

Abe, Hiromi; Kimura, Akihiro; Tsuruta, Sanae; Fukaya, Tomohiro; Sakaguchi, Ryota; Morita, Rimpei; Sekiya, Takashi; Shichita, Takashi; Chayama, Kazuaki; Fujii-Kuriyama, Yoshiaki; Yoshimura, Akihiko

2014-03-01

271

Influence of parameter values and variances and algorithm architecture in ConsExpo model on modeled exposures.  

PubMed

This study evaluated the influence of parameter values and variances and model architecture on modeled exposures, and identified important data gaps that influence lack-of-knowledge-related uncertainty, using Consexpo 4.1 as an illustrative case study. Understanding the influential determinants in exposure estimates enables more informed and appropriate use of this model and the resulting exposure estimates. In exploring the influence of parameter placement in an algorithm and of the values and variances chosen to characterize the parameters within ConsExpo, "sensitive" and "important" parameters were identified: product amount, weight fraction, exposure duration, exposure time, and ventilation rate were deemed "important," or "always sensitive." With this awareness, exposure assessors can strategically focus on acquiring the most robust estimates for these parameters. ConsExpo relies predominantly on three algorithms to assess the default scenarios: inhalation vapors evaporation equation using the Langmuir mass transfer, the dermal instant application with diffusion through the skin, and the oral ingestion by direct uptake algorithm. These algorithms, which do not necessarily render health conservative estimates, account for 87, 89 and 59% of the inhalation, dermal and oral default scenario assessments,respectively, according them greater influence relative to the less frequently used algorithms. Default data provided in ConsExpo may be useful to initiate assessments, but are insufficient for determining exposure acceptability or setting policy, as parameters defined by highly uncertain values produce biased estimates that may not be health conservative. Furthermore, this lack-of-knowledge uncertainty makes the magnitude of this bias uncertain. Significant data gaps persist for product amount, exposure time, and exposure duration. These "important" parameters exert influence in requiring broad values and variances to account for their uncertainty. Prioritizing them for research will not only help fill a large and influential knowledge gap, but also lead to more accurate assessments and thus refine the studies informing policy decisions. PMID:24283337

Arnold, Susan F; Ramachandran, Gurumurthy

2014-01-01

272

Comparison of hydrogenated amorphous silicon germanium and nanocrystalline silicon for multijunction solar cells: pros, cons, and status  

Microsoft Academic Search

A comparison is made of hydrogenated amorphous silicon germanium (a-SiGe:H) and hydrogenated nanocrystalline silicon (nc-Si:H) for use in the bottom cell of a multijunction structure. In our laboratory, an initial active-area cell efficiency of 14.6% has been achieved in both a-Si:H\\/a-SiGe:H\\/a-SiGe:H and a-Si:H\\/a-SiGe:H\\/nc-Si:H triple-junction structures. Their light-soaked stabilized efficiencies are also similar. Pros, cons, issues, and status for using these

Jeffrey Yang; Baojie Yan; Guozhen Yue; Subhendu Guha

2005-01-01

273

SOBREPESO Y OBESIDAD EN NIÑOS Y ADOLESCENTES DE LA CIUDAD DE CORRIENTES ASOCIACIÓN CON FACTORES DE RIESGO CARDIOVASCULAR  

Microsoft Academic Search

sos, con predominio en varones (OR=1.46; IC=1.12-1.91; p=0.03). Actividad física semanal: 3.9 ± 2.9 hs. mayor en varones (p<0.001). Horas de sedentarismo: 3.2 ± 1.9. Antecedentes: obesidad materna 282 (13.3%), paterna 311 (14.7%), en ambos 116 (6.6%). Consumo regular de comidas grasas: 1711 (80.9%). PAS: 107.8 ± 13.6; PAD: 66.9 ± 11.5; PAM: 80.5 ± 10.1. Hipertensos 64 (3%) a

CARLOS A. MARTÍNEZ; JULIO O. IBÁÑEZ; CARLOS A. PATERNO; MIRTHA SEMENZA DE ROIG; MARÍA ITATÍ HEITZ; JORGE O. KRISKOVICH; GRISELDA R. DE BONIS; LIZ C. CÁCERES

2001-01-01

274

Pros and Cons of Using Arrays of Small Antennas Versus Large Single Dish Antennas for the Deep Space Network  

NASA Technical Reports Server (NTRS)

This paper briefly describes pros and cons of using arrays of small antennas instead of large single dish antennas for spacecraft telemetry, command, and tracking (TT and C) - communications and navigation (C and N) - and science support that the Deep Space Network (DSN) normally provides. It considers functionality and performance aspects, mainly for TT and C, though it also considers science. It only briefly comments on the cost aspects that seem to favor arrays of small antennas over large single antennas, at least for receiving (downlinks).

Bagri, Durgadas S.

2009-01-01

275

Suspicion of acute appendicitis in the third trimester of pregnancy: pros and cons of a laparoscopic procedure.  

PubMed

The presentation of acute appendicitis during pregnancy may cause diagnostic and therapeutic difficulty. Delay in diagnosis may lead to increased maternal and fetal risk. Therefore, an aggressive surgical approach is mandatory, even though this may result in an increased number of appendectomies for normal appendices. Diagnostic laparoscopy, followed by laparoscopic appendectomy in case of inflammation, seems a logical strategy. We present the case of a 36-week pregnant woman who presented with suspicion of acute appendicitis. The pro and cons of a laparoscopic approach in the third trimester of pregnancy are discussed as is its safety by reviewing the literature. PMID:21985728

Donkervoort, S C; Boerma, D

2011-01-01

276

P- T- t paths and post-metamorphic exhumation of the Day Nui Con Voi shear zone in Vietnam  

NASA Astrophysics Data System (ADS)

The Day Nui Con Voi belt in Vietnam is the southeasternmost part of the Red River shear zone in Asia. It is a narrow high-grade metamorphic core complex consisting of garnet-sillimanite-biotite gneisses, mylonite bands, amphibolite layers and migmatites. Geothermobarometric study of the complex revealed that the peak metamorphism took place under amphibolite-facies conditions of 690 -60 +30°C and 0.65±0.15 GPa and the subsequent mylonitization occurred under greenschist-facies conditions of ˜480°C and under 0.3 GPa. Fifteen synkinematic hornblende and biotite separates from gneisses, amphibolites and mylonites were dated with the K/Ar method. Hornblende separates from the Day Nui Con Voi give K-Ar ages of 26.4-28.5 Ma, and the biotite separates do give 24.5-24.7 Ma. Combination of thermobarometric and geochronological data yields the cooling history of 500°C at 28 Ma and 300°C at 24 Ma with a cooling rate of 70-110°C Ma -1, and 23 km post-metamorphic exhumation of the core complex. The first 16 km exhumation from the peak of metamorphism (at probably 31 Ma) to 28 Ma was triggered by the left-lateral strike-slip displacement of the Red River shear zone.

Nam, Tran Ngoc; Toriumi, Mitsuhiro; Itaya, Tetsumaru

1998-05-01

277

Dissection of the intracellular pathways in hepatocytes suggests a role for Jun kinase and IFN regulatory factor-1 in Con A-induced liver failure.  

PubMed

Con A administration results in dose-dependent immune-mediated liver injury. Cytokines are important to determine the outcome of liver failure in this model, and especially TNF-alpha and IFN-gamma directly contribute to hepatocyte damage. The intracellular pathways of these two cytokines, which eventually result in tissue destruction, are not well defined. Here we used anti-IFN-gamma Abs and adenoviral vectors that express molecules inhibiting distinct TNF-alpha-dependent pathways in hepatocytes to better understand the relevance of specific intracellular signaling cascades for Con A-induced liver failure. We show that activation of TNF-alpha- and IFN-gamma-dependent intracellular pathways occurs prior to the influx of immune-activated cells into the liver and that anti-TNF-alpha and anti-IFN-gamma neutralizing Abs cannot block infiltration of these cells. Blocking experiments with Abs and adenoviral vectors showed that NF-kappaB activation and the Fas-associated death domain protein/caspase 8 cascade in hepatocytes during Con A-induced liver failure have no impact on tissue injury. Additionally, STAT1 activation alone after Con A injection in liver cells does not result in liver damage. In contrast, IFN-gamma-dependent expression of IFN regulatory factor-1 and TNF-alpha-dependent activation of c-Jun N-terminal kinase in liver cells correlates with liver cell damage after Con A injection. Therefore, our experiments indicate that 11418690 PMID:11418690

Streetz, K; Fregien, B; Plümpe, J; Körber, K; Kubicka, S; Sass, G; Bischoff, S C; Manns, M P; Tiegs, G; Trautwein, C

2001-07-01

278

Methane activation by cobalt cluster cations, Co(n)+ (n = 2-16): reaction mechanisms and thermochemistry of cluster-CH(x) (x = 0-3) complexes.  

PubMed

The kinetic energy dependences of the reactions of Co(n)(+) (n = 2-16) with CD(4) are studied in a guided ion beam tandem mass spectrometer over the energy range of 0-10 eV. The main products are hydride formation, Co(n)D(+), dehydrogenation to form Co(n)CD(2)(+), and double dehydrogenation yielding Co(n)C(+). These primary products decompose to form secondary and higher order products, Co(n)CD(+), Co(n-1)D(+), Co(n-1)C(+), Co(n-1)CD(+), and Co(n-1)CD(2)(+) at higher energies. Adduct formation of Co(n)CD(4)(+) is also observed for the largest cluster cations, n > or = 10. In general, the efficiencies of the single and double dehydrogenation processes increase with cluster size, although the hexamer cation shows a reduced reactivity compared to its neighbors. All reactions exhibit thresholds, and cross sections for the various primary and secondary reactions are analyzed to yield reaction thresholds from which bond energies for cobalt cluster cations to D, C, CD, CD(2), and CD(3) are determined. The relative magnitudes of these bond energies are consistent with simple bond order considerations. Bond energies for larger clusters rapidly reach relatively constant values, which are used to estimate the chemisorption energies of the C, CD, CD(2), and CD(3) molecular fragments to cobalt surfaces. PMID:19206975

Citir, Murat; Liu, Fuyi; Armentrout, P B

2009-02-01

279

Ground-state magnetic properties of CoN clusters on Pd(111): Spin moments, orbital moments, and magnetic anisotropy  

NASA Astrophysics Data System (ADS)

The ground-state spin moments , orbital moments , and magnetic anisotropy energy (MAE) of CoN clusters deposited on the Pd(111) surface are determined in the framework of a self-consistent, real-space tight-binding method. Two-dimensional CoN/Pd(111) with N<~13 show remarkably large total magnetic moments per Co atom Mz=(2+)/N=(2.4 2.7)?B, which are the result of three physically distinct effects. The first and leading contribution comes, as expected, from the local spin moments at the Co atoms i=1-N [2Co?1.7?B]. Second, significant spin moments are induced at the Pd atoms i>N close to the Co-Pd interface, which amount to about 20% of Mz [2Pd=(0.2 0.3)?B]. Finally, remarkably enhanced orbital magnetic moments are found that are responsible for approximately 20% of Mz. In the case of Co atoms, Co?(0.3 0.5)?B is almost a factor of 3 larger than the Co-bulk orbital moment, while in Pd atoms Pd=(0.02 0.04)?B represents about 10% of the total local moment ?iz=2+. The dependence of the orbital moments on the orientation of the magnetization with respect to the cluster structure is quantified. These results and the associated MAEs are analyzed from a local point of view. One- and two-dimensional (2D) CoN are considered in order to investigate the structural dependence of the magnetic behavior. The role of the cluster-surface interactions is discussed by comparison with free cluster calculations. In particular, we observe that the lowest-energy magnetization direction (easy axis) changes from in-plane to off-plane upon deposition of 2D CoN on Pd(111). Cluster-substrate hybridizations are therefore crucial for the magnetoanisotropic behavior of magnetic islands deposited on metallic substrates.

Félix-Medina, R.; Dorantes-Dávila, J.; Pastor, G. M.

2003-03-01

280

[Intracranial hypertension related to sedation with sevoflurane using the AnaConDa(®) device in a patient with severe traumatic brain injury].  

PubMed

Sedation in neurocritical patients remains a challenge as there is no drug that meets all the requirements. Since the appearance of the AnaConDa(®) device, and according to the latest recommendations, sevoflurane has become an alternative for patients with brain injury. The use of AnaConDa(®) produces an increase in the anatomical dead space that leads to a decrease in alveolar ventilation. If the decrease in the alveolar ventilation is not offset by an increase in minute volume, there will be an increase in PaCO2. We report the case of a patient with severe traumatic brain injury who suffered an increase in intracranial pressure as a result of increased PaCO2 after starting sedation with the AnaConDa(®) device. PMID:22920835

Ferrando, C; Carbonell, J A; Aguilar, G; Badenes, R; Belda, F J

2013-10-01

281

Intraspecific alkaloid variation in ladybird eggs and its effects on con- and hetero-specific intraguild predators.  

PubMed

Egg predation and cannibalism are common phenomena in predatory ladybirds despite the presence of defensive alkaloids. Consumption of heterospecific eggs negatively affects survivorship and development; however, intraspecific variation in quantities of alkaloids and post-ingestion responses to con- and hetero-specific alkaloids, are not well understood. We examined variation in the quantity of alkaloids in eggs of Harmonia axyridis (Pallas), Coccinella septempunctata L., and Hippodamia convergens (Guérin) using gas chromatography-mass spectrometry, and show a link between heterospecific alkaloids and their toxicity and/or costs by feeding high and low alkaloid eggs to first instar H. axyridis and C. septempunctata. The repeatability of alkaloid measurements in eggs in an egg cluster was high; however, the amount of alkaloids varied significantly between egg clutches within and among females. This variation affected egg consumption by C. septempunctata when fed H. axyridis eggs. Harmonia axyridis accumulated their own alkaloid by cannibalism and synthesized it de novo, but C. septempunctata lost some portion of the consumed conspecific alkaloids. Both species lost most of the consumed heterospecific alkaloids, but C. septempunctata died within 3 days. Most H. axyridis survived to the second instar, but C. septempunctata alkaloids led to a significant reduction in weight gain compared to an aphid control. In addition, ingestion of high alkaloid C. septempunctata extended development of H. axyridis compared to the aphid control or conspecific eggs. Harmonia axyridis had greater abilities to process ingested con- and hetero-specific alkaloids compared with C. septempunctata, which may, in part, explain their interspecific interactions in nature. PMID:20049478

Kajita, Yukie; Obrycki, J J; Sloggett, J J; Haynes, K F

2010-06-01

282

Lectin from Canavalia brasiliensis (ConBr) protects hippocampal slices against glutamate neurotoxicity in a manner dependent of PI3K/Akt pathway.  

PubMed

The excitotoxicity induced by excessive activation of the glutamatergic neurotransmission pathway is involved in several neuropathologies. In this sense, molecules that prevent the release of glutamate or the excessive activation of its receptors can be useful in preventing the neuronal cell death observed in these diseases. Lectins are proteins capable of reversible binding to the carbohydrates in glycoconjugates, and some have been used in the study and purification of glutamate receptors. ConBr is a mannose/glucose-binding lectin purified from Canavalia brasiliensis seeds. In the present study, we aimed to evaluate the neuroprotective activity of ConBr against glutamate-induced excitotoxicity. Hippocampal slices were isolated from adult male mice and incubated for 6h in Krebs saline/DMEM buffer alone (control), in the presence of glutamate or glutamate plus ConBr. The phosphorylation of Akt and mitogen activated protein kinases (MAPKs) such as ERK1/2, p38(MAPK) and JNK1/2/3 was evaluated with western blotting. The results indicate that glutamate provoked a reduction in the hippocampal slice viability (-25%), diminished the phosphorylation of Akt and augmented p38(MAPK) and ERK1 phosphorylation. No changes were observed in the phosphorylation of JNK1/2/3 or ERK2. Notably, ConBr, through a mechanism dependent on carbohydrate interaction, prevented the reduction of cell viability and Akt phosphorylation induced by glutamate. Furthermore, in the presence of the PI3K inhibitor LY294002, ConBr was unable to reverse glutamate neurotoxicity. Taken together, our data suggest that the neuroprotective effect of ConBr against glutamate neurotoxicity requires oligosaccharide interaction and is dependent on the PI3K/Akt pathway. PMID:23454192

Jacques, Amanda V; Rieger, Débora K; Maestri, Mariana; Lopes, Mark W; Peres, Tanara V; Gonçalves, Filipe M; Pedro, Daniela Z; Tasca, Carla I; López, Manuela G; Egea, Javier; Nascimento, Kyria S; Cavada, Benildo S; Leal, Rodrigo B

2013-05-01

283

Elevated cyclic AMP suppresses ConA-induced MT1-MMP expression in MDA-MB-231 human breast cancer cells  

Microsoft Academic Search

We have previously reported that induction of MMP-2 activation by Concanavalin A (ConA) in MDA-MB-231human breast cancer cells\\u000a involves both transcriptional and post-transcriptional mechanisms, and that the continuous presence of ConA is required for\\u000a MMP-2 activation (Yu et al. Cancer Res, 55, 3272-7, 1995).In an effort to identify signal transduction pathways which may\\u000a either contribute to or modulate this mechanism,we

Ming Yu; Hiroshi Sato; Motoharu Seiki; Sarah Spiegel; Erik W. Thompson

1998-01-01

284

Aortic surface coat scanning electron-microscopic modifications after short-term hypercholesterolic diet, visualized in rabbits by con A-haemocyanin reaction.  

PubMed

Modifications of the aortic endothelial surface coat have been visualized at SEM with the use of the Con A-haemocyanin method. After fifteen days of an atherogenic diet, a strong increase of the reactive coat was evident in areas near the orifice of the collateral branches. In other areas, the reaction appeared to be intensely diminished. PMID:901615

Weber, G; Fabbrini, P; Resi, L; Toti, P

1977-06-01

285

Evaluación de estimadores no paramétricos de la riqueza de especies. Un ejemplo con aves en áreas verdes de la ciudad de Puebla, México  

Microsoft Academic Search

Nuestro objetivo fue evaluar el desempeño de estimadores no paramétricos de la riqueza de especies con datos reales. Durante la temporada de cría de 2003 censamos las comunidades de aves en dos áreas verdes de la ciudad de Puebla (México), y obtuvimos las corres¬pondientes curvas de rarefacción, que fueron ajustadas a dos funciones de acumulación de especies no asintóticas y

J. A. González Oreja; A. A. De la Fuente-Díaz-Ordaz; L. Hernández-Santín; D. Buzo-Franco; C. Bonache-Regidor

2010-01-01

286

BRIEF COMMUNICATIONS: Influence of collisions of the second kind on the electron energy balance and lasing characteristics of CON2 mixtures  

Microsoft Academic Search

A numerical solution of the Boltzmann transport equation for the electron energy distribution function and of a system of rate equations for the populations of the vibrational levels of the carbon monoxide and nitrogen molecules is used to study the influence of collisions of electrons with vibrationally excited molecules on the electron energy balance and characteristics of lasing of CO-N2

R. Sh Islamov; Yu B. Konev; Igor'V. Kochetov; A. K. Kurnosov

1984-01-01

287

Synthesis, growth, structural, spectral, thermal, chemical etching, linear and nonlinear optical and mechanical studies of an organic single crystal 4-chloro 4-nitrostilbene (CONS): a potential NLO material.  

PubMed

4-Chloro 4-nitrostilbene (CONS) a new organic nonlinear optical material has been synthesized. Employing slow evaporation method, good optical quality single crystals (dimensions up to 6×2×3 mm(3)) have been grown using ethyl methyl ketone (EMK) as a solvent. The grown crystals have been subjected to various characterizations such as single crystal X-ray diffraction, powder XRD, Fourier Transform Infrared spectroscopy (FTIR), proton NMR, solid UV absorption, SHG studies. Single crystal X-ray diffraction reveals that the crystal system belongs to monoclinic with noncentrosymmetric space group P21. The UV-Vis absorption spectrum has been recorded and found that the cut off wavelength is 380 nm. Functional groups and the structure of the title compound have been confirmed by FTIR and (1)H NMR spectroscopic analyses respectively. Molecular mass of the CONS confirmed by the high resolution mass spectral analysis .The thermal behavior of the grown crystal has been studied by TG/DTA analysis and it shows the melting point is at 188.66 °C. Dislocations and growth pattern present in the grown crystal revealed by the etching study. The mechanical strength of the CONS crystal has been studied by Vicker's hardness measurement. The SHG efficiency of the grown crystal has been determined by Kurtz and Perry powder test which revealed that the CONS crystal (327 mV) has 15 times greater efficiency than that of KDP (21.7 mV). PMID:23624038

Dinakaran, Paul M; Kalainathan, S

2013-07-01

288

Oxacilin-resistant Coagulase-negative staphylococci (CoNS) bacteremia in a general hospital at S?o Paulo city, Brasil  

PubMed Central

In the last decades, coagulase-negative staphylococci (CoNS), especially Staphylococcus epidermidis have become an important cause of bloodstream infections. In addition, rates of methicillin-resistance among CoNS have increased substantially, leading to the use of glicopeptides for therapy. The objective of this study was to evaluate eleven consecutives clinically relevant cases of oxacillin-resistant CoNS bacteremia in a general hospital localized in São Paulo city, Brazil. Five different species were identified by different phenotypic methods, including S. epidermidis (5), S. haemolyticus (3), S. hominis (1), S. warneri (1) and S. cohnii subsp urealyticus (1). A variety of Pulsed Field Gel Electrophoresis profiles was observed by macrorestriction DNA analysis in S. epidermidis isolates, but two of three S. haemolyticus isolates presented the same profile. These data indicated the heterogeneity of the CoNS isolates, suggesting that horizontal dissemination of these microorganisms in the investigated hospital was not frequent. One S. epidermidis and one S. haemolyticus isolates were resistant to teicoplanin and susceptible to vancomycin. The selective pressure due to the use of teicoplanin in this hospital is relevant.

d'Azevedo, P.A.; Secchi, C.; Antunes, A.L.S.; Sales, T.; Silva, F.M.; Tranchesi, R.; Pignatari, A.C.C.

2008-01-01

289

Accurate macromolecular crystallographic refinement: incorporation of the linear scaling, semiempirical quantum-mechanics program DivCon into the PHENIX refinement package.  

PubMed

Macromolecular crystallographic refinement relies on sometimes dubious stereochemical restraints and rudimentary energy functionals to ensure the correct geometry of the model of the macromolecule and any covalently bound ligand(s). The ligand stereochemical restraint file (CIF) requires a priori understanding of the ligand geometry within the active site, and creation of the CIF is often an error-prone process owing to the great variety of potential ligand chemistry and structure. Stereochemical restraints have been replaced with more robust functionals through the integration of the linear-scaling, semiempirical quantum-mechanics (SE-QM) program DivCon with the PHENIX X-ray refinement engine. The PHENIX/DivCon package has been thoroughly validated on a population of 50 protein-ligand Protein Data Bank (PDB) structures with a range of resolutions and chemistry. The PDB structures used for the validation were originally refined utilizing various refinement packages and were published within the past five years. PHENIX/DivCon does not utilize CIF(s), link restraints and other parameters for refinement and hence it does not make as many a priori assumptions about the model. Across the entire population, the method results in reasonable ligand geometries and low ligand strains, even when the original refinement exhibited difficulties, indicating that PHENIX/DivCon is applicable to both single-structure and high-throughput crystallography. PMID:24816093

Borbulevych, Oleg Y; Plumley, Joshua A; Martin, Roger I; Merz, Kenneth M; Westerhoff, Lance M

2014-05-01

290

A Journal Pro/Con Forum: Why Third-Party Recruiters Do or Don't Fit in with Placement Services.  

ERIC Educational Resources Information Center

Presents opinions of two college placement officers and two representatives from business on third-party employment services. Discusses pros and cons. Includes a sample of a third-party job-vacancy announcement, a list of issues to explore when dealing with third-party recruiters, and two universities' notices to third-party employment services.…

Roberts, Jeff; And Others

1991-01-01

291

DETECCIÓN OPTOACÚSTICA DE NO2 CON EXCITACIÓN POR UN ARREGLO TRANSVERSAL DE LEDS AZULES NO2 OPTOACOUSTIC DETECTION BY TRANSVERSAL EXCITATION WITH AN ARRAY OF BLUE LEDS  

Microsoft Academic Search

Se desarrolló una celda simple de vidrio cerrada de forma cilíndrica, para aplicación en detección optoacústica, que es iluminada transversalmente con 32 LEDs azules distribuidos uniformemente a lo largo del tubo. Se forzó la excitación del segundo modo longitudinal iluminando en un semiciclo la zona central, comprendida entre los nodos de la onda estacionaria. Asimismo, durante el otro semiciclo, se

G. D. Santiago; A. L. Peuriot; F. González; V. B. Slezak; M. G. González

292

Fluoroalcohols induced unfolding of Succinylated Con A: native like beta-structure in partially folded intermediate and alpha-helix in molten globule like state.  

PubMed

Concanavalin A (Con A) exists in dimeric state at pH 5. In concentration range 20-60% (v/v) 2,2,2-trifluoroethanol (TFE) and 2-40% (v/v) 1,1,1,3,3,3-hexafluoroisopropanol (HFIP), Con A at pH 5.0 shows visible aggregation. However, when succinyl Con A was used, no aggregation was observed in the entire concentration range of fluoroalcohols (0-90% v/v TFE and HFIP) and resulted in stable alpha-helix formation. Temperature-induced concentration-dependent aggregation in Con A was also found to be prevented/reduced in succinylated form. Possible role of electrostatic repulsion among residues in the prevention of hydrophobically driven aggregation has been discussed. Results indicate that succinylation of a protein resulted in greater stability (in both beta-sheet and alpha-helical forms) against alcohol-induced and temperature-induced concentration-dependent aggregation and this observation may play significant role in amyloid-forming proteins. Effect of TFE and HFIP on the conformation of a dimeric protein, Succinylated Con A, has been investigated by circular dichroism (CD), fluorescence emission spectroscopy, binding of hydrophobic dye ANS (8-anilinonaphthalene-1-sulfonic acid). Far UV-CD, a probe for secondary structure shows loss of native secondary structure in the presence of low concentration of both the alcohols, TFE (10% v/v) and HFIP (4% v/v). Upon addition of higher concentration of these alcohols, Succinylated Con A exhibited transformation from beta-sheet to alpha-helical structure. Intrinsic tryptophan fluorescence studies, ANS binding and near UV-CD experiments indicate the protein is more expanded, have more exposed hydrophobic surfaces and highly disrupted tertiary structure at 60% (v/v) TFE and 30% (v/v) HFIP concentrations. Taken together, these results it might be concluded that TFE and HFIP induce two intermediate states at their low and high concentrations in Succinyl Con A. PMID:16970906

Fatima, Sadaf; Ahmad, Basir; Khan, Rizwan Hasan

2006-10-15

293

Analysis of cancer risk and BRCA1 and BRCA2 mutation prevalence in the kConFab familial breast cancer resource  

PubMed Central

Introduction The Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer (kConFab) is a multidisciplinary, collaborative framework for the investigation of familial breast cancer. Based in Australia, the primary aim of kConFab is to facilitate high-quality research by amassing a large and comprehensive resource of epidemiological and clinical data with biospecimens from individuals at high risk of breast and/or ovarian cancer, and from their close relatives. Methods Epidemiological, family history and lifestyle data, as well as biospecimens, are collected from multiple-case breast cancer families ascertained through family cancer clinics in Australia and New Zealand. We used the Tyrer-Cuzick algorithms to assess the prospective risk of breast cancer in women in the kConFab cohort who were unaffected with breast cancer at the time of enrolment in the study. Results Of kConFab's first 822 families, 518 families had multiple cases of female breast cancer alone, 239 had cases of female breast and ovarian cancer, 37 had cases of female and male breast cancer, and 14 had both ovarian cancer as well as male and female breast cancer. Data are currently held for 11,422 people and germline DNAs for 7,389. Among the 812 families with at least one germline sample collected, the mean number of germline DNA samples collected per family is nine. Of the 747 families that have undergone some form of mutation screening, 229 (31%) carry a pathogenic or splice-site mutation in BRCA1 or BRCA2. Germline DNAs and data are stored from 773 proven carriers of BRCA1 or BRCA1 mutations. kConFab's fresh tissue bank includes 253 specimens of breast or ovarian tissue – both normal and malignant – including 126 from carriers of BRCA1 or BRCA2 mutations. Conclusion These kConFab resources are available to researchers anywhere in the world, who may apply to kConFab for biospecimens and data for use in ethically approved, peer-reviewed projects. A high calculated risk from the Tyrer-Cuzick algorithms correlated closely with the subsequent occurrence of breast cancer in BRCA1 and BRCA2 mutation positive families, but this was less evident in families in which no pathogenic BRCA1 or BRCA2 mutation has been detected.

Mann, Graham J; Thorne, Heather; Balleine, Rosemary L; Butow, Phyllis N; Clarke, Christine L; Edkins, Edward; Evans, Gerda M; Fereday, Sian; Haan, Eric; Gattas, Michael; Giles, Graham G; Goldblatt, Jack; Hopper, John L; Kirk, Judy; Leary, Jennifer A; Lindeman, Geoffrey; Niedermayr, Eveline; Phillips, Kelly-Anne; Picken, Sandra; Pupo, Gulietta M; Saunders, Christobel; Scott, Clare L; Spurdle, Amanda B; Suthers, Graeme; Tucker, Kathy; Chenevix-Trench, Georgia

2006-01-01

294

V?4 ?? T cell-derived IL-17A negatively regulates NKT cell function in Con A-induced fulminant hepatitis.  

PubMed

Con A-induced fulminant hepatitis is a well-known animal model for acute liver failure. However, the role of ?? T cells in this model is undefined. In this report, using TCR ?(-/-) mice, we demonstrated a protective role of ?? T cells in Con A-induced hepatitis model. TCR ?(-/-) mice showed significantly decreased levels of IL-17A and IL-17F in the Con A-treated liver tissue, and reconstitution of TCR ?(-/-) mice with wild-type (Wt), but not IL-17A(-/-), ?? T cells significantly reduced hepatitis, strongly suggesting a critical role of IL-17A in mediating the protective effect of ?? T cells. Interestingly, only V?4, but not V?1, ?? T cells exerted such a protective effect. Furthermore, depletion of NKT cells in TCR ?(-/-) mice completely abolished hepatitis, and NKT cells from Con A-challenged liver tissues of TCR ?(-/-) mice expressed significantly higher amounts of proinflammatory cytokine IFN-? than those from Wt mice, indicating that ?? T cells protected hepatitis through targeting NKT cells. Finally, abnormal capacity of IFN-? production by NKT cells of TCR ?(-/-) mice could only be downregulated by transferring Wt, but not IL-17(-/-), V?4 ?? T cells, confirming an essential role of V?4-derived IL-17A in regulating the function of NKT cells. In summary, our report thus demonstrated a novel function of V?4 ?? T cells in mediating a protective effect against Con A-induced fulminant hepatitis through negatively regulating function of NKT cells in an IL-17A-dependent manner, and transferring V?4 ?? T cells may provide a novel therapeutic approach for this devastating liver disease. PMID:21987663

Zhao, Na; Hao, Jianlei; Ni, Yuanyuan; Luo, Wei; Liang, Ruifang; Cao, Guangchao; Zhao, Yapu; Wang, Puyue; Zhao, Liqing; Tian, Zhigang; Flavell, Richard; Hong, Zhangyong; Han, Jihong; Yao, Zhi; Wu, Zhenzhou; Yin, Zhinan

2011-11-15

295

The Temporal and Spatial Quantification of Holocene Sediment Dynamics for Reconstructing Soil Erosion: Pros, Cons and Challenges  

NASA Astrophysics Data System (ADS)

Since the early beginning of farming, humans have a strong impact on the landscape, on its land cover and therefore on the sediment dynamics. It is assumed that an increase of farming activity is documented by truncated soil profiles due to soil erosion on the slopes and deposition of the eroded material as colluvium and alluvium at foot-slope positions and in floodplains of rivers. In this respect, these sediment archives play a major role in reconstructing human induced soil erosion and in establishing catchment wide quantitative sediment budgets. However, the response of sediment archives to an external impact like the human impact on the landscape or climate events is not homogeneous within a catchment, but might be variable in time and space. This is well known and considered in the geomorphological concept of sediment cascade systems and therefore needs to be included as a basic idea in studies on past soil erosion and its driving factors, using sediment archives. However, the identification of representative sediment archives within a catchment and especially their temporal quantification is challenging. In this presentation I will discuss the importance of sediment archives for reconstruction past soil erosion, the significance of these archives for identifying possible causes of sediment redistribution and the pros, cons and challenges, which are involved.

Fuchs, Markus

2014-05-01

296

Virgin Caenorhabditis remanei females are attracted to a coital pheromone released by con-specific copulating males.  

PubMed

The gonochoristic soil nematode Caenorhabditis remanei strictly requires copulation for species propagation. Males of this species are sexually promiscuous with females of other species; therefore, we asked in this study whether virgin C. remanei females display evidence of mate choice. We digitally recorded and measured the locomotor behaviors of one or more virgin females in the presence of a single male on a 5 mm diameter mating lawn. We observed that initially only the male modifies his locomotor trajectory to another animal on the mating lawn; the virgin females showed no locomotor bias toward the mate-searching male. However, once a male started to copulate, females in the vicinity altered their movement trajectories toward the copulating couple. Newly inseminated females are refractive to the coital signal, but partially regain their attraction to copulating males after 24 h. We found only copulating males with an intact gonad can attract females, and that the coital signal can be broadcasted at least 1.5 mm through the air. Unlike males, which are also attracted to hetero-specific females, virgin C. remanei females will only crawl toward a copulating con-specific male. We suggest that Caenorhabditis females use the coital signal as a pheromone to identify a vigorous male of their own species. PMID:24058874

Markert, Mathew; García, Luis René

2013-04-01

297

A review of safety, efficacy, pros and cons, and issues of puerperal tubal sterilization--an update.  

PubMed

This review focuses on the safety, efficacy, pros and cons of tubal sterilization procedures performed during the puerperium period while the woman is still in hospital. Findings from four previous reviews are synthesized, and the results published in more recent literature are evaluated. The review finds that tubal sterilization performed while the woman is still on the delivery table, or during a woman's early puerperium while she remains hospitalized, is operationally easy and medically safe, and does not adversely affect lactation. However, reported pregnancy rates are generally higher in puerperal tubal sterilization than in interval sterilization, especially when the mechanical tubal occlusion technique is used. The Pomeroy method, and its modifications via minilaparotomy, is highly recommendable. On the other hand, electrocoagulation via laparoscopy is associated with high efficacy, but a potentially increased risk of complications and difficulties in tubal reversal. Tubal sterilizations can be easily and safely performed at cesarean delivery in selected cases. Tubal sterilization performed during puerperium has a number of advantages over short-acting contraceptive methods, which require strict compliance, for postpartum use. However, candidates for puerperal tubal sterilization need to be carefully screened and counseled, since post-sterilization regret is more likely to occur. Unsettled issues for puerperal tubal sterilization and a number of practical problems that need to be addressed before initiation of a puerperal tubal sterilization program in a maternity clinic/hospital are discussed. PMID:8533623

Chi, I C; Petta, C A; McPheeters, M

1995-09-01

298

Air Traffic Management Technology Demonstration-1 Concept of Operations (ATD-1 ConOps), Version 2.0  

NASA Technical Reports Server (NTRS)

This document is an update to the operations and procedures envisioned for NASA s Air Traffic Management (ATM) Technology Demonstration #1 (ATD-1). The ATD-1 Concept of Operations (ConOps) integrates three NASA technologies to achieve high throughput, fuel-efficient arrival operations into busy terminal airspace. They are Traffic Management Advisor with Terminal Metering (TMA-TM) for precise time-based schedules to the runway and points within the terminal area, Controller-Managed Spacing (CMS) decision support tools for terminal controllers to better manage aircraft delay using speed control, and Flight deck Interval Management (FIM) avionics and flight crew procedures to conduct airborne spacing operations. The ATD-1 concept provides de-conflicted and efficient operations of multiple arrival streams of aircraft, passing through multiple merge points, from top-of-descent (TOD) to the Final Approach Fix. These arrival streams are Optimized Profile Descents (OPDs) from en route altitude to the runway, using primarily speed control to maintain separation and schedule. The ATD-1 project is currently addressing the challenges of integrating the three technologies, and their implantation into an operational environment. The ATD-1 goals include increasing the throughput of high-density airports, reducing controller workload, increasing efficiency of arrival operations and the frequency of trajectory-based operations, and promoting aircraft ADS-B equipage.

Baxley, Brian T.; Johnson, William C.; Swenson, Harry N.; Robinson, John E.; Prevot, Tom; Callantine, Todd J.; Scardina, John; Greene, Michael

2013-01-01

299

Special funding schemes for innovative medical devices in French hospitals: The pros and cons of two different approaches.  

PubMed

Financing innovative medical devices is an important challenge for national health policy makers, and a crucial issue for hospitals. However, when innovative medical devices are launched on the European market there is generally little clinical evidence regarding both efficacy and safety, both because of the flaws in the European system for regulating such devices, and because they are at an early stage of development. To manage the uncertainty surrounding the reimbursement of innovation, several European countries have set up temporary funding schemes to generate evidence about the effectiveness of devices. This article explores two different French approaches to funding innovative in-hospital devices and collecting supplementary data: the coverage with evidence development (CED) scheme introduced under Article L. 165-1-1 of the French Social Security Code; and national programs for hospital-based research. We discuss pros and cons of both approaches in the light of CED policies in Germany and the UK. The CED policies for devices share common limitations. Thus, transparency of CED processes should be enhanced and decisions need to be made in a timely way. Finally, we think that closer collaboration between manufacturers, health authorities and hospitals is essential to make CED policies more operational. PMID:24794738

Martelli, Nicolas; van den Brink, Hélène

2014-07-01

300

Supine percutaneous nephrolithotomy: con.  

PubMed

Advocates of supine percutaneous nephrolithotomy (PCNL) consider several theoretical advantages for this procedure. Despite the potential advantages of the supine PCNL, the majority of urologists have remained reluctant to perform this technique. This reluctance may be related to successful outcomes of prone PCNL and technical difficulties associated with supine PCNL. Feasibility of supine PCNL has been shown in different series and the current evidence, although limited and not fully organized, implies the application of this technique for patients with simple stones who are at high anesthesiological risk. However, there is no convincing evidence to support performing supine PCNL in morbidly obese patients and those with complex and multiple stones. Further randomized clinical trials of large sample size and high methodological quality are required to recommend extensive application of supine PCNL as an alternative to prone PCNL. PMID:22090043

Lashay, Alireza; Amini, Erfan; Ahanian, Ali; Ozhand, Ardalan; Nikkar, Mohammad Masoud; Sharifi, Seyed Hossein Hosseini

2011-01-01

301

EthicsConRep  

Cancer.gov

The authors also gratefully acknowledge the copy editing assistance of Leslie Alter, MPH and Steve Brown. The Ethical Force Program’s initiative on patient-centered communication is funded in part by the American Medical Association Foundation, The California Endowment, the Commonwealth Fund and the Connecticut Health Foundation.

302

The Classics, Con Brio  

ERIC Educational Resources Information Center

Sponsored by a consortium of 30 American universities, Rome's Intercollegiate Center for Classical Studies offers a year of study to American undergraduate classics majors. Instructors are also American and normally stay only a year; teaching assistants are always ex-students of the center. Extensive field trips are an important part of the…

Hansen, James

1978-01-01

303

Circumcision: Pros and cons  

PubMed Central

Circumcision is possibly the most frequently performed elective surgical procedure in men. It can simply be described as the excision of the preputium. There have been several studies about the association between circumcision and urinary tract infections (UTI). Many studies have demonstrated that the frequency of UTI increase in uncircumcised males, especially in the first year of life. This review discusses the embryology of the preputium, epidemiology, indications, complications and benefits of circumcision, as well as operation and anesthesiology techniques. It especially examines the association between UTI and circumcision and the importance of circumcision in congenital urinary system anomalies. In addition, this review examines the associations between circumcision and sexually transmitted diseases, including HIV, and the protective role of circumcision on penile cancer.

Burgu, Berk; Aydogdu, Ozgu; Tangal, Semih; Soygur, Tarkan

2010-01-01

304

Neo-Conned University  

ERIC Educational Resources Information Center

Censorship, says Australian political theorist John Keane (1991), can "echo within us, take up residence within ourselves, spying on us, a private amanuensis who reminds us never to go too far... It makes us zip our lips, tremble and think twice" (p. 39). It can also make us sick. The author states that this is her argument here: that,…

Jones, Andee

2014-01-01

305

The Protective Effect of Intrasplenic Transplantation of Ad-IL-18BP/IL-4 Gene-Modified Fetal Hepatocytes on ConA-Induced Hepatitis in Mice  

PubMed Central

Background Concanavalin A (ConA)-induced hepatitis is an experimental murine model mirroring the pathology of human autoimmune hepatitis. Aim To investigate the effects of intrasplenically transplanted fetal hepatocytes (BNL.CL2) transfected with recombinant adenovirus vector expressing the IL-18 binding protein (IL-18BP) and IL-4 fusion protein on ConA-induced hepatitis in mice. Methods Ad-IL-18BP/IL-4 was used to infect BNL.CL2 cells. IL-4 and IL-18BP fusion protein expression were detected by ELISA and Western blotting. BNL.CL2 cells infected with Ad-IL-18BP/IL-4 were intrasplenically transplanted into mice. After 10 days, mice were injected with ConA (15 mg/kg), and sacrificed 18 hours later. Liver injury was assessed by serum transaminase and liver histology. TNF-?, IL-18, IL-4, IL-10, IL-12p70 and monocyte-chemoattracting protein (MCP)-1 levels in serum and liver homogenates were detected by ELISA. Signaling molecules in liver homogenates were analyzed by Western blotting. Results Ad-IL-18BP/IL-4 effectively expressed the IL-18BP/IL-4 fusion protein for more than 14 days in BNL.CL12 cells. Treatment of mice with Ad-IL-18BP/IL-4-BNL.CL2 before ConA injection significantly reduced the elevated plasma levels of transaminases compared with ConA control groups. TNF-?, IL-18, IL-12p70 and MCP-1 levels in serum and liver homogenates from mice transplanted with Ad-IL-18BP/IL-4-BNL.CL2 were lower and IL-4 and IL-10 levels were higher than control groups. Phosphorylation levels of NF-?B p65, AKT, p38 and JNK1/2 in liver homogenates were markedly suppressed by Ad-IL-18BP/IL-4. Conclusions Ad-IL-18BP/IL-4 was effectively transfected into mouse BNL.CL2 cells. Intrasplenic transplantation of Ad-IL-18BP/IL-4-BNL.CL12 cells alleviated the severity of inflammation in ConA-induced experimental hepatitis and provides a useful basis for the targeted gene therapy of liver disease.

Xu, Chenhuai; Hong, Bo; Xu, Wanhong; Shen, Ling; Jin, Changzhong; Wu, Zhigang; Tong, Xiangmin; Yao, Hangping

2013-01-01

306

Long-term fertility control in female cats with GonaCon™, a GnRH immunocontraceptive.  

PubMed

The uncontrolled reproduction of free-roaming feral cats contributes to overpopulation and associated concerns regarding their welfare and impact on public health and the environment. Nonsurgical fertility control that could be administered to feral cats in the field would be a powerful tool for cat population control. The objective was to test the efficacy and duration of activity of a single-dose GnRH immunocontraceptive vaccine (GonaCon™) on the fertility of adult female laboratory cats. Vaccinated cats (n = 15) received a single injection of vaccine containing a GnRH-KLH conjugate (200 ?g) emulsified in a mycobacterial and oil adjuvant on study Day 0. Sham-treated cats (n = 5) received a single injection containing all vaccine components except the GnRH-KLH conjugate. A breeding trial started on study Day 120. Vaccinated cats had a longer time to conception (median 39.7 mo) compared to sham-treated cats (4.4 mo; P < 0.001). A total of 93% of vaccinated cats remained infertile for the first year following vaccination, whereas 73, 53, and 40% were infertile for 2, 3, and 4 y, respectively. At study termination (5 y after a single GnRH vaccine was administered), four cats (27%) remained infertile. The GnRH antibody titers declined more rapidly in short-term responding cats with < 2 y of infertility (n = 4), compared to long-term responding cats that experienced fertility control for >2 y (n = 11) (P < 0.05). Non-painful but persistent late-onset granulomatous injection site masses appeared 2 y after initial vaccination in five cats. We concluded that GnRH immunocontraception is an ideal candidate for further development for feral cat control. PMID:21835455

Levy, Julie K; Friary, John A; Miller, Lowell A; Tucker, Sylvia J; Fagerstone, Kathleen A

2011-11-01

307

[Preliminary data on the different endothelial reaction to Con A at different levels of the arterial tree in rabbits and in Cynomolgus monkeys].  

PubMed

Delayed appearance of atherosclerotic lesions in cerebral arteries has been observed not only in man but also in monkeys and rabbits submitted to atherogenic diets. Previous observations of ours had shown a Con A positive reaction ("glycocalyx" or "surface coat") at the luminal surface and in the plasmalemmal vesicles of aortic endothelial cells of rabbits an other laboratory animals. The "surface coat" is now reputed the site of lipoproteinlipase activity whose importance in atherogenesis has recently been stressed. In our present observations, the endothelial cells Con A reactivity after Bernhard and Avrameas which was not previously studied in the cerebral arteries of rabbits and monkeys has resulted always lacking in this arterial district. Those observations may help explaining delayed appearance of atherosclerotic lesions in cerebral arteries. PMID:7337739

Weber, G; Fabbrini, P; Resi, L

1981-11-15

308

Optimization of an in vitro assay which measures the proliferation of duck T lymphocytes from peripheral blood in response to stimulation with PHA and ConA  

Microsoft Academic Search

The in vitro proliferative responses of duck PBMCs purified from Ficoll-Paqut: density gradients to the mitogens PHA and ConA show a great deal of duck-to-duck variation. Better responses were consistently obtained by using nylon wool fractionation to increase the proportion of duck T lymphocytes in PBMC preparations and then culturing these preparations with homologous monocytes, purified from PBMC preparations by

Edward M. Bertram; Allison R. Jilbert; Ieva Kotlarski

1997-01-01

309

A shock tube study of high temperature reaction of CON2OH2 mixtures and its application to CO2 gasdynamic laser  

Microsoft Academic Search

In order to investigate the gasdynamic laser (GDL), a conventional pressure-driven shock tube equipped with a nozzle apparatus was used. Kinetic study of CO2 formation in a CO-N2O-H2 system behind a reflected shock wave was carried out by measuring the 4.25 micron emission of CO2. Then, population inversions of the vibrational level of CO2 in an expanding flow of mixtures

H. Miyama; N. Fujii; N. Takeishi; T. Tokuda; N. Sakatsume

1989-01-01

310

Li storage and impedance spectroscopy studies on Co3O4, CoO, and CoN for Li-ion batteries.  

PubMed

The compounds, CoN, CoO, and Co3O4 were prepared in the form of nano-rod/particles and we investigated the Li-cycling properties, and their use as an anode material. The urea combustion method, nitridation, and carbothermal reduction methods were adopted to prepare Co3O4, CoN, and CoO, respectively. X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and the Brunauer-Emmett-Teller (BET) surface and density methods were used to characterise the materials. Cyclic voltammetry (CV) was performed and galvanostatic cycling tests were also conducted up to 60-70 cycles. The observed reversible capacity of all compounds is of the increasing order CoO, Co3O4, CoN and all compounds showed negligible capacity fading. CoO allows for Li2O and Co metal to form during the discharge cycle, allowing for a high theoretical capacity of 715 mA h g(-1). Co3O4 allows for 4 Li2O and 3Co to form, and has a theoretical capacity of 890 mAhg(-1). CoN is the best anode material of the three because the nitrogen allows for Li3N and Co to form, resulting in an even higher theoretical capacity of 1100 mAhg(-1) due to the Li3N and Co metal formation. Irrespective of morphology the charge profiles of all three compounds showed a major plateaux ~2.0 V vs. Li and potential values are almost unchanged irrespective of crystal structure. Electrochemical impedance spectroscopy (EIS) was performed to understand variation resistance and capacitance values. PMID:24325322

Reddy, M V; Prithvi, Gundlapalli; Loh, Kian Ping; Chowdari, B V R

2014-01-01

311

A review of the practice of sedation with inhalational anaesthetics in the intensive care unit with the AnaConDa® device  

PubMed Central

The intensive care unit (ICU) environment is often perceived to be hostile and frightening by patients due to unfamiliar surroundings coupled with presence of numerous personnel, monitors and other equipments as well as a loss of perception of time. Mechanical ventilation and multiple painful procedures that often need to be carried out in these critically ill patients add to their overall anxiety. Sedation is therefore required not only to allay the stress and anxiety, but also to allow for mechanical ventilation and other invasive therapeutic and diagnostic procedures to be performed. The conventional intravenous sedative agents used in ICUs suffer from problems of over sedation, tachyphylaxis, drug accumulation, organ specific elimination and often lead to patient agitation on withdrawal. All this tend to prolong the ventilatory as well as ICU and hospital discharge time, which increase the risk for infection and add to the overall increase in morbidity, mortality and hospital costs. In 2005, the anaesthetic conserving device (AnaConDa®) was marketed for ICU sedation with volatile anaesthetic agents. A number of trials have shown the effectiveness of using volatile anaesthetic agents for ICU sedation with the AnaConDa device. Compared with intravenous sedatives, use of volatile anaesthetic agents have resulted in shorter wake up and extubation time, lesser duration of mechanical ventilation and faster discharge from hospitals. This review shall focus on the benefits, technical pre-requisites and status of sedation with volatile anaesthetic agents in ICUs with the AnaConDa® device.

Misra, Satyajeet; Koshy, Thomas

2012-01-01

312

Expression of hormonal receptors in osteosarcomas of the jaw bones: Clinico-pathological analysis of 21 case  

PubMed Central

Background: Sexual hormones have an important role in many hormone-dependant tumors like breast and prostate carcinomas, and also a relationship has been found with bone metabolism and bone tumors. Some studies have demonstrated that the expression of hormonal receptors (HR) in osteosarcomas (OS) of long bones is associated with gender, histological grade, histological type, and possibly may be connection with pathogenesis and evolution. However, to our knowledge there are no studies of HR in osteosarcomas of craniofacial bones (OS-CF). Objectives: To assess the expression of hormonal receptors in OS-CF. Material and Methods: Twenty one cases of OS-CF were included in this study. Clinical outcome was obtained from clinical charts. Histological sections were reviewed, and immunohistochemistry studies for estrogen, progesterone and androgen receptors were performed. Results: A striking female predominance was found (2:1), with a median age of 35 years. The predominant type of OS was osteoblastic (52.4%), and histological grade was high in 86%. Follow-up was obtained in 13 cases and ranged from 6 to 118 months (median 29 months). There were 8 patients (61.5%) dead or alive with progressive disease in the last follow up. Negative expression of HR was found in 19/21 cases; one showed weak nuclear expression for estrogen receptor, and another for androgen receptor. Progesterone receptor was negative in all cases. Conclusions: OS-CF mostly affected females, most of them were of the osteoblastic type and of high grade. Hormonal expression was practically negative in osteosarcoma of craniofacial bones. Key words:Osteosarcoma, jaws, estrogen, progesterone, androgen receptors.

Dominguez-Malagon, Hugo R.; Gonzalez-Conde, Esther; Cano-Valdez, Ana M.; Luna-Ortiz, Kuauhyama

2014-01-01

313

Histopathologic spectrum of Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS): a diagnosis that needs clinico-pathological correlation.  

PubMed

Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) is characterized by an heterogeneous group of severe dermatologic manifestations and systemic involvement, due to several groups of medicaments. A series of 9 consecutive cases, observed from 2008 to 2013 in the Department of Dermatology, University of Pavia, is reported, all satisfying the clinical, hematological and systemic diagnostic criteria of DRESS. Clinically, 4 out of 9 patients had an urticarial and papular eruption, 2 an erythema-multiforme-like (EM-like) pattern, 2 erythroderma and 1 had an erythematous and macular reaction. Aim of the study was to describe the histopathologic features of DRESS and to trace a possible correlation between the four clinical recognized types of the syndrome and the histopathological patterns. Predominantly, a superficial perivascular lymphocytic infiltrate, extravasation of erythrocytes, and focal interface changes characterized DRESS cases. Less frequently, histopathology revealed the presence of necrotic keratinocytes; surprisingly, only in 2 cases the presence of rare dermal eosinophils was detected, even if all the patients had significant peripheral eosinophilia. A histopathological diagnosis of DRESS seems per se, according to our data, not feasible, since the main histopathological changes (interface changes, superficial perivascular dermatitis, focal spongiosis, lichenoid infiltrate, rare presence of necrotic keratinocytes) can be interpreted generically as a drug induced dermatitis. The above mentioned histopathological changes, however, when associated with clinical information on cutaneous and systemic involvement of the patient, allow the pathologist or the dermatopathologist to make a diagnosis of DRESS with a reliable margin of certainty. PMID:24819756

Borroni, G; Torti, S; Pezzini, C; Vassallo, C; Rosso, R; D'Ospina, R M; Tomasini, C; Brazzelli, V

2014-06-01

314

First case report of anaphylaxis caused by Rajgira seed flour (Amaranthus paniculatus) from India: a clinico-immunologic evaluation.  

PubMed

The prevalence of food allergy is reported to be 3-4% in adults and about 6% in children. However food allergy across different countries accounts for 35-50 % all cases of anaphylaxis to foods. In the present study, we have reported a case of anaphylaxis to Amaranth grain (Amaranthus paniculatus) commonly known as Rajgira (Ramdana) in India. A 60 year old female suffered anaphylaxis after consuming Rajgira seed flour generally consumed during fasting. Food allergy to Amaranth seeds is not reported so far. The patient reported to hospital with complaints of itching in mouth, choking throat, redness and swelling of face and burning abdomen within 5 min of consuming Rajgira flour. Clinical and immunological investigations revealed SPT and oral challenge positivity beside high allergen specific IgE in the serum of the patient. Three IgE binding protein fractions were detected in roasted Rajgira seed flour extract which could be considered to be allergenically important for triggering anaphylaxis. PMID:23517398

Kasera, Ramkrashan; Niphadkar, P V; Saran, Aditya; Mathur, Chandni; Singh, A B

2013-03-01

315

Clinico-toxinological characterization of the acute effects of the venom of the marine snail, Conus loroisii.  

PubMed

The venom of the marine snail, Conus loroisii, was studied to assess its risk and lethal factors in regard of human welfare. The lethality of the crude venom (LD50-5.0 mg/kg via i.p.) in mice was associated with reduced motor activity, asphyxiation, followed by respiratory failure. The effects on vital tissues revealed vascular congestion and inflammatory cell infiltration around the portal triad of the liver, spongiosis of the brain, hemorrhages/congested blood vessels in lung and endothelial cells of the renal tubule. Repeated measures of hematological profiles indicated that the venom significantly reduced erythrocytes (P<0.001, GLM repeated measures), followed associated with depletion of hemoglobin, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin and platelet count. Serum enzymes such as, glutamic-oxaloacetic transaminase, glutamic-pyruvic transaminase, lactate dehydrogenase and alkaline and acid phosphatases were altered significantly (P<0.05, Friedman test), which in turn confirmed the damage of vital organ tissues. Dual effect of the venom on the activity of mouse brain acetylcholinesterase stand for concentration specific, whereas maximal inhibition (60.41%, P<0.05, Wilcoxon signed rank test) in erythrocyte acetylcholinesterase did not show the dual activity observed in brain. The Ciphergen ProteinChip analysis of the envenomed serum further revealed that the venom causes changes in definite molecules involved in inflammatory process and ionic transport. In all, the venom of C. loroisii is potentially lethal to mammals, through its rapid action on the central and peripheral nervous systems by blocking neurotransmission with selective interference of ionic channels/receptors. PMID:16216213

Saminathan, R; Babuji, S; Sethupathy, S; Viswanathan, P; Balasubramanian, T; Gopalakrishanakone, P

2006-01-01

316

Clinico-toxinological characterization of the acute effects of the venom of the marine snail, Conus loroisii  

Microsoft Academic Search

The venom of the marine snail, Conus loroisii, was studied to assess its risk and lethal factors in regard of human welfare. The lethality of the crude venom (LD50-5.0mg\\/kg via i.p.) in mice was associated with reduced motor activity, asphyxiation, followed by respiratory failure. The effects on vital tissues revealed vascular congestion and inflammatory cell infiltration around the portal triad

R. Saminathan; S. Babuji; S. Sethupathy; P. Viswanathan; T. Balasubramanian; P. Gopalakrishanakone

2006-01-01

317

Clinico Hemato Biochemical Findings, Clinical Management, and Production Performance of Bovines with Late Pregnancy Indigestion (Type IV Vagal Indigestion)  

PubMed Central

This prospective study was conducted on 15 animals (eight buffaloes and seven cows), diagnosed with late pregnancy indigestion. Ten buffaloes and 10 cows served as the control group. The animals were in advanced pregnancy and had partial or complete anorexia, reduced water intake, loss of defecation or scanty faecal output, and mild to moderate dehydration. Heart and respiration rates were increased and rumen motility was reduced. Five animals had persistent tympany and moderate distension of left abdomen, and two animals each had bilateral abdominal distension and papple shaped abdomen. Neutrophil and lymphocyte counts were significantly higher and lower than the control values. Total bilirubin, AST, total protein, globulin, BUN, glucose, and lactate were significantly higher, and chloride and calcium were significantly lower than the control values. Levels of ALP, GGT, albumin, creatinine, cholesterol, triglyceride, fibrinogen, fibrinogen ratio, sodium, potassium, phosphorus, and magnesium did not differ significantly from the control values. Rumen chloride concentration was higher than the reference range. Majority of animals were managed symptomatically until parturition. There was no effect on fetal survival or milk yield in current and subsequent lactation. So, late pregnancy indigestion causes clinical and hemato biochemical alterations which require special consideration when treating diseased animals.

Hussain, Syed Ashaq; Uppal, Sanjeev Kumar; Sood, Naresh Kumar; Mahajan, Shashi Kant

2014-01-01

318

Survivin expression in ovarian cancer and its correlation with clinico-pathological, surgical and apoptosis-related parameters  

PubMed Central

We investigated the association of survivin expression with prognosis and other apoptosis-related biological factors in 110 primary ovarian cancer patients admitted to the Division of Gynecologic Oncology, Catholic University of Rome. Immunohistochemistry was performed on formalin-fixed, paraffin-embedded sections by using polyclonal antibody ab469 for survivin, and mouse monoclonal antibodies (clone 124 and DO-7), for bcl-2 and p53, respectively. Cytoplasmic survivin immunoreaction was observed in 84.5% cases, while nuclear survivin immunostaining was observed in 29.1% cases. We failed to find any relationship between cytoplasmic survivin positivity rate and any of the parameters examined. Serous tumours showed a lower percentage of nuclear survivin positivity with respect to other histotypes (20.5 vs 48.6%, respectively; P-value=0.004). The percentage of nuclear survivin positivity was higher in cases subjected to primary tumour cytoreduction (43.5%), with respect to patients subjected to exploratory laparotomy (20%) (P=0.024). Bcl-2 and p53 were, respectively, expressed in 27.3 and 60.0% of the cases and their expression was not correlated with survivin status. During the follow-up period, progression and death of disease were observed in 68 (61.8%) and 53 (48.2%) cases, respectively. There was no difference in time to progression and overall survival according to survivin status in ovarian cancer patients. In conclusion, in our experience, the immunohistochemical assessment of survivin status does not seem to be helpful in the prognostic characterisation of ovarian cancer. A more in depth investigation of the complex physiology of divergent survivin variants is needed in order to clarify the biological and the clinical role of differentially located survivin isoforms.

Ferrandina, G; Legge, F; Martinelli, E; Ranelletti, F O; Zannoni, G F; Lauriola, L; Gessi, M; Gallotta, V; Scambia, G

2005-01-01

319

Tireoidite auto-imune bociogenica. Aspectos do diagnostico clinico e laboratorial. (Autoimmune thyroiditis goitrogenic. Aspects of clinical and laboratorial diagnosis).  

National Technical Information Service (NTIS)

To asses the accuracy achieved by the A.C.A.T. and other clinical and laboratorial criterion in the diagnoses of T.A.I.B. we investigated twenty patients with goiter and antimicrossomal antibodies titres of 1/1.600 or more. Analysing the parameters useful...

H. F. Z. Costa

1986-01-01

320

Melanoma incidence mortality rates and clinico-pathological types in the siberian area of the Russian Federation.  

PubMed

Russian rates for melanoma incidence and mortality are relatively low as compared to some other white populations but the tumor is of increasing importance. In this paper, data are based on a retrospective descriptive analysis of melanoma epidemiology and clinicopathological characteristics in Krasnoyarsk Territory belonging to the Siberian Federal District of the Russian Federation. The age-adjusted incidence and mortality rates for the period 1996-2009 were determined with subsequent retrospective analysis of clinicopathological data of 103 primary melanoma cases. Our results showed that incidence and mortality rates in the region under consideration match the Russian national trends and correspond to epidemiological data of the countries of Eastern Europe. Stratification of melanoma cases by age, sex, clinicopathological state and localization revealed a prevalence of lesions on the trunk and lower extremities. Most melanomas diagnosed were of superficial spreading type and the third Clark's level of tumor invasion and stage II according to AJCC. In spite of comparatively low rates of incidence and mortality the trend to increase of melanoma cases in the region under consideration obviously calls for more attention and further investigation. PMID:24716957

Gyrylova, Svetlana Nikolaevna; Aksenenko, Mariya Borisovna; Gavrilyuk, Dmitriy Vladimirovich; Palkina, Nadezda Vladimirovna; Dyhno, Yuriy Alexandrovich; Ruksha, Tatiana Gennadievna; Artyukhov, Ivan Pavlovich

2014-01-01

321

Evaluation of clinico-pathological criteria and the Ki67 index as prognostic indicators in canine insulinoma.  

PubMed

The establishment of reliable prognostic biomarkers for canine insulinoma are warranted to facilitate optimal patient management. Using univariate and multivariate analyses, the present study evaluated the prognostic power of several clinical and histopathological criteria, as well as the Ki67 index, in 26 dogs with insulinoma. On univariate analysis, stromal fibrosis within these tumours was found to be significantly predictive for survival, while tumour size, the Ki67 index, and TNM (Tumour, Node, Metastasis) stage were significant in the prognosis of both disease-free interval and survival time. On multivariate analysis, tumour size retained predictive power for disease-free intervals, while the Ki67 index proved prognostically significant for both the disease-free interval and overall survival time. This study demonstrates that, in addition to known factors such as tumour size and stage, Ki67 can act as a biomarker of insulinoma that can be used to predict clinical outcome. PMID:20570189

Buishand, Floryne O; Kik, Marja; Kirpensteijn, Jolle

2010-07-01

322

Clinico-histopathologic and outcome features of cutaneous infundibular keratinizing acanthoma: a case report and literature review.  

PubMed

The infundibular keratinizing acanthoma (IKA) is a rare epithelial benign keratin-containing neoplasm of hair follicles. The purpose of this study was to evaluate the defining histopathologic architecture of IKA. A typical IKA consisted of a keratin-filled crypt in the dermis and subcutis that opened to the skin surface. Most of this tumor occurred on the back, neck, head, and the shoulders. Microscopically, the dermal nodules were focally contiguous in both the dermis and subcutis. Furthermore, most histological lesions are consistent with a simple or multiloculated cyst filled with keratin and lined by a wall of stratified squamous epithelium; keratin appears as a concentric lamellar mass, with a keratotic pearly aspect. Histological examination of the cutaneous lesions revealed that the growths were comprised of IKA. IKA of man and dog were compared, and it was concluded that although they are similar in many respects, they are not identical entities. To the best of our knowledge, this is the first report on the prevalence of IKAs among the population of owned dogs in Iran. PMID:24890648

Tavasoly, Abbas; Gholami, Hossein; Rostami, Amir; Anissian, Ali; Touni, Seyed Rashid; Khaleghian, Pooyan; Mokarizadeh, Aram; Javanbakht, Javad; Nasoori, Alireza

2014-01-01

323

Clinico-histopathologic and outcome features of cutaneous infundibular keratinizing acanthoma: a case report and literature review  

PubMed Central

The infundibular keratinizing acanthoma (IKA) is a rare epithelial benign keratin-containing neoplasm of hair follicles. The purpose of this study was to evaluate the defining histopathologic architecture of IKA. A typical IKA consisted of a keratin-filled crypt in the dermis and subcutis that opened to the skin surface. Most of this tumor occurred on the back, neck, head, and the shoulders. Microscopically, the dermal nodules were focally contiguous in both the dermis and subcutis. Furthermore, most histological lesions are consistent with a simple or multiloculated cyst filled with keratin and lined by a wall of stratified squamous epithelium; keratin appears as a concentric lamellar mass, with a keratotic pearly aspect. Histological examination of the cutaneous lesions revealed that the growths were comprised of IKA. IKA of man and dog were compared, and it was concluded that although they are similar in many respects, they are not identical entities. To the best of our knowledge, this is the first report on the prevalence of IKAs among the population of owned dogs in Iran.

2014-01-01

324

Analysis of the clinico-hematological relevance of the breakpoint location within M-BCR in chronic myeloid leukemia.  

PubMed

The Philadelphia chromosome (Ph) derives from the balanced translocation between chromosomes 9 and 22. This chromosomal translocation results in the fusion between the 5' part of the BCR gene, normally located on chromosome 22, and the 3' part of the ABL gene on chromosome 9 giving origin to a BCR-ABL fusion gene which is transcribed and then translated into a hybrid protein. In general, three breakpoint cluster regions in the BCR gene have been described: major (M-BCR), minor (m-BCR) and micro (?-BCR). Three main variants of the BCR-ABL gene have been described depending on the length of the sequence of the BCR gene included that encode for the P190, P210, P230 proteins. Most patients (95 %) were found to have P210 protein that resulted from rearrangement in the M-BCR region in the BCR gene and thus gives rise to b2a2 or b3a2 variants. The incidence of one or other rearrangement in chronic myeloid leukemia (CML) patients varies in different reported series. These two variants are associated with distinct clinical types of human leukemias. In this study, we report the frequencies of M-BCR-ABL fusion transcripts in 44 CML patients and we review the data on the correlations between the type of M-BCR/ABL variant and the corresponding sex, age and biological features. Forty-four untreated chronic phase CML patients were studied. The type of BCR-ABL fusion transcripts was determined by reverse transcriptase polymerase chain reaction (RT-PCR). More than half of them showed b3a2 fusion transcript (64 %), while (36 %) showed b2a2 transcript. No patients coexpressed b3a2/b2a2. Correlation between biological data demonstrated that: (a) M-BCR rearrangements were not associated with the sex of the patients. (b) Patients with b3a2 rearrangements were older than patients with b2a2 transcripts. (c) M-BCR rearrangements were influenced neither by the white blood count (WBC) nor with hemoglobin levels. However, platelet level is more elevated in patients with b3a2 transcript (681.2/L vs. 207/L; P = 0.001). In conclusion, we observed significant correlations between age, platelet level and M-BCR-ABL transcript, these observations deserve further investigations. PMID:23269583

Bennour, Ayda; Ouahchi, Ines; Achour, Bechir; Zaier, Monia; Youssef, Yosra Ben; Khelif, Abderrahim; Saad, Ali; Sennana, Halima

2013-03-01

325

Primary primitive neuroectodermal tumour of the urinary bladder: a clinico-pathological study emphasising immunohistochemical, ultrastructural and molecular analyses  

PubMed Central

Primary primitive neuroectodermal tumours (PNETs) of the bladder are extremely rare and aggressive neoplasms, and only six examples have been reported in the literature. The case of a 21?year?old woman, who remains disease free 3?years after tumour resection, is reported here. Morphological features were found to correspond to a small round blue cell tumour without rosette formation and with extensive areas of necrosis. Strong expression of CD99, vimentin and CD117 (c?kit), and focal reactivity to cytokeratin and S?100 protein was observed in tumour cells. Ultrastructurally, sparse neurosecretory granules were observed. Diagnosis of PNET was supported by molecular genetic analysis, showing the EWS–FLI?1 fusion transcript type 2 by RT?PCR and EWS gene rearrangement by fluorescence in situ hybridisation. A normal genetically balanced genotype was shown by comparative genomic hybridisation, which, together with the expression of c?kit, a known therapeutic target for imatinib, may have prognostic and therapeutic implications.

Lopez-Beltran, A; Perez-Seoane, C; Montironi, R; Hernandez-Iglesias, T; Mackintosh, C; de Alava, E

2006-01-01

326

Clinico-mycological Profile of Dermatophytosis in a Reference Centre for Leprosy and Dermatological Diseases in Addis Ababa  

Microsoft Academic Search

To assess the clinical and fungal species spectrum of dermatophyte infection in a reference centre in Addis Ababa, 539 dermatological\\u000a patients with signs of dermatophytosis were investigated. Seventy-one percent were female and 29% male, aged 2–66 years (median\\u000a 9). Four hundred-fifteen (77%) had at least one skin lesion. Tinea capitis was diagnosed in 138\\/155 males (89%) as compared to 214\\/384 females

Y. Woldeamanuel; R. Leekassa; E. Chryssanthou; Y. Mengistu; B. Petrini

2006-01-01

327

Audit Clinico Su Indicatori Qualita in Radioterapia Selezionati per Patologie (Clinical Audit on Evaluation Indicators in Radiotherapy for Different Pathologies).  

National Technical Information Service (NTIS)

In the framework of the Istituto Superiore di Sanita (the Italian National Institute of Health) project of evaluation indicators in radiotherapy one of the working groups, in which 30 radiotherapy centres together with their health physics units were repr...

2005-01-01

328

Hydroxyurea in sickle cell disease—A study of clinico-pharmacological efficacy in the Indian haplotype  

Microsoft Academic Search

There is clinical variability in the presentation of sickle cell disease among Indians. Vaso-occlusive crisis is common among non-tribal patients. Hydroxyurea, induces fetal hemoglobin (HbF) synthesis and reduces the clinical severity of sickle cell disease but individual patients have a variable response. This study was undertaken to investigate the efficacy and safety of hydroxyurea in Indians with severe manifestations where

Khushnooma Italia; Dipty Jain; Sushma Gattani; Farah Jijina; Anita Nadkarni; Pratibha Sawant; Sona Nair; Dipika Mohanty; Kanjaksha Ghosh; Roshan Colah

2009-01-01

329

Myocarditis and arrhythmia: a clinico-pathological study of conduction system based on serial section in 65 cases.  

PubMed

We studied the conduction system of 65 cases of proven active or healed myocarditis and related diseases among 7120 autopsy samples. For this purpose, we prepared serial sections by Lev's method. The pathological diagnoses were idiopathic acute myocarditis (5), giant cell myocarditis (3), chronic myocarditis (13), healed myocarditis (22), sarcoidosis (4), collagen or autoimmune disease (13) and complication of cachexia (5). Among all the autopsy cases, Fiedler's myocarditis was found in only one case, but myocarditis was revealed in 19 out of 30 cases of dilated cardiomyopathy, and 15 out of 25 cases of sick sinus syndrome. Conduction system lesions were divided into two groups. In older cases manifesting mainly arrhythmia, the SA node, atrial muscle and AV node were involved concomitantly with perimyocarditis. In younger cases mainly showing heart failure, the RBB, LBB and Purkinje fibers were damaged by endomyocarditis. Histologically, interstitial myocarditis was observed in the former group and parenchymatous myocarditis in the latter. PMID:2716170

Inoue, S; Shinohara, F; Sakai, T; Niitani, H; Saito, T; Hiromoto, J; Otsuka, T

1989-01-01

330

Clinico-pathological prognostic factors of renal cell carcinoma: A 15-year review from a single center in Greece  

PubMed Central

Aim: To investigate the prognostic significance of certain clinical and pathological factors of renal cell cancer. Materials and Methods: One hundred and fourteen patients who underwent radical nephrectomy between 1996 and 2011 in our hospital were examined. Parameters including age, gender, mode of presentation, hematological and pathological parameters were evaluated for their role as predictors of disease-free and overall survival. Results: Median follow-up was 69 months. Predominant histological type, pathological stage, and nuclear grade were clear cell carcinoma, pT1, and Fuhrman II, respectively. Five-year overall and disease-free survival were 86% and 82%, respectively. Only nuclear grade (P = 0.02) and preoperative anemia (P < 0.01) were correlated with overall survival, while pathological stage, nuclear grade, anemia, and neutrophil-to-lymphocyte ratio of 2.7 or greater were associated with disease-free survival (P = 0.02, P = 0.038, P < 0.01, P = 0.049, respectively). In the multivariate setting, anemia (P = 0.04) and pathological stage (P = 0.026) were the only independent statistically significant predictors of disease-free survival, while anemia (P = 0.018) and neutrophil to lymphocyte ratio (P = 0.034) were the only factors correlated with overall survival. Conclusions: Due to the wide application of various imaging studies, patients with kidney cancer are diagnosed more often with localized disease and favorable pathological features. Fuhrman nuclear grade, pathological stage, preoperative anemia, and neutrophil to lymphocyte ratio are strongly associated with survival. In localized disease, such information could be used to guide the intensity of follow-up and identify high-risk patients who can be targeted for adjuvant therapy trials.

Grivas, Nikolaos; Kafarakis, Vasilios; Tsimaris, Ioannis; Raptis, Pavlos; Hastazeris, Konstantinos; Stavropoulos, Nikolaos E.

2014-01-01

331

[A clinico-pathological study regarding the incidence of intranuclear cytoplasmic inclusions (ICI) in cases of papillary thyroid carcinoma].  

PubMed

Intranuclear cytoplasmic inclusions (ICI) in 38 cases of thyroid papillary carcinomas have been studied as to the relationship between the frequency of ICI and the clinical, histological, and cytological findings of the carcinoma. ICI were present in all cases. The frequency of ICI in the cases studied ranged from +/- (one per several fields) to ¿ (more than ten per one field), using a microscope of 400 magnifications, and from 1.3% to 11.6% (mean value: 3.9%) of the nuclei of the carcinomas. The frequency of ICI was found to be influenced by the state of the nuclear chromatin and pleomorphism, but was not influenced by the papillary or follicular tumor growth. The relationship between the frequency of ICI and the tumor size and the existence of lymph-nodes metastasis, however, was not clarified. PMID:3230638

Oyama, T; Joshita, T; Tanami, Y; Ishida, T; Izuo, M

1988-12-01

332

Clinico-pathological studies on a transitional type between extrahepatic biliary atresia and paucity of the interlobular bile ducts  

Microsoft Academic Search

Among the neonatal and infantile cases of obstructive jaundice seen at Niigata and Yamagata University Hospitals between 1976 and 1990, extrahepatic bile ducts were visualized in 19 cases by either preoperative endoscopic retrograde cholangiopancreaticography (ERCP) or intraoperative cholangiography. Neonatal hepatitis was diagnosed in 3 of these cases by clear images of the bile duct system extending from the common bile

Iwao Yamagiwa; Kazuya Obata; Yasuharu Hatanaka; Hiroyuki Saito; Masahiko Washio; Makoto Iwafuchi

1993-01-01

333

Alteracoes osseas uremicas - Estudo clinico laboratorial, cintigrafico e radiologico. (Uremic bone diseases - Clinical laboratory, scintigraphic and radiological study).  

National Technical Information Service (NTIS)

This paper evaluated the uremic bone disease in 10 patients on peritoneal dialysis, 10 on hemodialysis and 10 submited to renal transplantation. According to biochemical evaluation we observed hypocalcemia in some patients on dialysis and hipercalcemia in...

W. C. F. Silva

1982-01-01

334

A multilocular radiolucency of mandible as the first evidence of multiple myeloma: A clinico-radiographic case report  

PubMed Central

The incidence of multiple myeloma (MM) affecting the jaws is 30% and on rare occasions the oral involvement can be the first indication of the disease. Authors report a case of MM in a 40-year-old woman who presented with a multilocular radiolucent lesion in the left mandible initially mistaken as an ameloblastoma. Conventional radiographs revealed a multilocular lesion on the molar region. Computed tomography (CT) and 3 dimensional CT revealed lytic, space occupying lesion perforating the inferior cortex. Magnetic resonance imaging (MRI) revealed a hypointense lesion on T1 weighted image and hyperintense lesion on T2 weighted image. Histopathological and lab investigations lead to the diagnosis of MM. MRI is superior in depicting the size of the lesion as compared to CT and conventional radiographs.

Mohan, Ravi Prakash Sasankoti; Gill, Navneet; Verma, Sankalp; Chawa, Venkateshwar Rao; Tyagi, Kuber; Agarwal, Neha

2014-01-01

335

Radiologic assessment of laryngeal carcinoma. A clinico-pathologic comparison based on whole-organ serial sections.  

PubMed

In 33 patients with laryngeal carcinoma operated upon with laryngectomy, a comparison has been made of the findings yielded by radiography and microlaryngoscopy and a microscopic examination using whole-organ serial sectioning. The radiographic examinations were conventional films, tomography and laryngography. Radiography supplemented in microlaryngoscopy with information of clinical importance. Surface extension of the tumour was fairly accurately assessed preoperatively whereas deep infiltration was not. Major destruction of the anterior part of the thyroid cartilage was correctly diagnosed. PMID:525418

Olofsson, J; Sökjer, H

1979-01-01

336

Literature meta-analysis of zosteriform cutaneous metastases from melanoma and a clinico-histopathological report from India  

PubMed Central

Cutaneous metastases in patients with malignant tumours are an important clue to tumour progression or even the first manifestation of malignancy. Among the various topographic patterns of cutaneous metastasis, the zosteriform pattern of metastasis is rare, and very few cases have been published. Various theories have been proposed for this zosteriform pattern of metastases, but none have been proved. We collected the available PubMed articles on zosteriform skin metastasis from cutaneous melanoma published since 1970 and reviewed the cases, including our own case. Melanoma presents with cutaneous metastasis in up to 44% of patients. Clinicians treating oncology patients should consider zosteriform skin metastasis in the differential diagnosis of zosteriform lesions to avoid inadequate diagnosis and management.

Chaudhary, Savita; Bansal, Cherry; Husain, Ayanat

2013-01-01

337

[Pathogenesis of motor disorders in patients with vibration disease caused by local vibration (clinico-electroneuromyographic study].  

PubMed

The author provides the data on clinical, neurophysiological examinations of 195 patients suffering from vibration disease, stages I and II, due to local vibration. Three types of axonal injuries were established: axonal degeneration, demyelinization of the distal part of axon and demyelinization of its proximal part. All the three types of neural disorders were attended by synaptic alterations with a decrement of the M-response and the syndrome of "working in". The initial manifestations of neurophysiological pathology were axonal degenerative disorders with changes in neuromuscular transmission; on longer exposure to vibration there appeared the signs of demyelination. The length of service with vibrating tools is given fr the occupational groups with above-indicated neural disorders. The patterns of motor disorders did not depend on the type of vibrating tools, whereas the localization of the pathological alterations was related to the characteristic features of an industry. PMID:1962991

Liubimova, R P

1990-01-01

338

Ocular surface squamous neoplasia - Review of etio-pathogenesis and an update on clinico-pathological diagnosis  

PubMed Central

Ocular surface squamous neoplasia (OSSN) has a varied clinical presentation, the diagnosis of which rests on the histopathological examination of the excised lesion. The term OSSN includes mild dysplasia on one end of the spectrum and invasive squamous cell carcinoma on the other end. This lesion has a multi factorial aetiology with interplay of several factors like exposure to ultraviolet radiation, various chemical carcinogens and viral infections, however role of individual agents is not well understood. With the upsurge of infection with human immunodeficiency virus, a changing trend is seen in the clinical presentation and prognosis of patients of OSSN even in developed countries. Anterior segment optical coherence tomography (OCT) and confocal microscopy, hold promise in in-vivo differentiation of intraepithelial neoplasia from invasive squamous cell carcinoma. Variants of squamous cell carcinoma like Mucoepidermoid carcinoma, spindle cell carcinoma and OSSN associated with HIV infection should be suspected in a case of aggressive clinical presentation of OSSN or with massive and recurrent tumours. Surgery, chemotherapy and immunotherapy are the various treatment modalities which in combination show promising results in aggressive, recurrent and larger tumours.

Mittal, Ruchi; Rath, Suryasnata; Vemuganti, Geeta Kashyap

2013-01-01

339

Iter diagnostico nelle patologie asbesto correlate, considerazioni a margine di un caso clinico di sospetta neoplasia professionale  

Microsoft Academic Search

In our country the rate of asbestos - related neoplasia, in particular pleural mesothelioma and lung cancer, is increasing; the data provided by INAIL concerning the complaints for occupational diseases filed in 2006 ex table D.P.R. 336\\/1994 (neoplastic diseases caused by asbestos: pleural, pericardial and peritoneal mesothelioma; lung cancer) are significant. The total number of such complaints in our country

F. Spigno; R. Gentile; T. Valente; G. Capannelli

2008-01-01

340

A clinico-pathological and follow up study of 10 cases of essential type II cryoglobulinaemic neuropathy.  

PubMed Central

Ten patients with essential cryoglobulinaemia type II were examined for peripheral nerve damage. In six cases distal symmetrical nerve involvement was present, while in three other cases abnormalities restricted to single nerves were found. Electrophysiological and morphological data were consistent with axonal damage, the larger myelinated fibres being most affected. Although active signs of vasculitis and immunoperoxidase staining for immunoglobulins were not present, endoneurial vessels were widely damaged, with abnormally thick endothelial cells and redundant basal membranes. These findings, together with a patchy distribution of myelinated fibre loss, suggest ischaemia as a cause of peripheral neuropathy during essential cryoglobulinaemia type II. A follow up examination, performed one year after haematologial remission, revealed that no further peripheral nerve damage had occurred.

Cavaletti, G; Petruccioli, M G; Crespi, V; Pioltelli, P; Marmiroli, P; Tredici, G

1990-01-01

341

A multilocular radiolucency of mandible as the first evidence of multiple myeloma: A clinico-radiographic case report.  

PubMed

The incidence of multiple myeloma (MM) affecting the jaws is 30% and on rare occasions the oral involvement can be the first indication of the disease. Authors report a case of MM in a 40-year-old woman who presented with a multilocular radiolucent lesion in the left mandible initially mistaken as an ameloblastoma. Conventional radiographs revealed a multilocular lesion on the molar region. Computed tomography (CT) and 3 dimensional CT revealed lytic, space occupying lesion perforating the inferior cortex. Magnetic resonance imaging (MRI) revealed a hypointense lesion on T1 weighted image and hyperintense lesion on T2 weighted image. Histopathological and lab investigations lead to the diagnosis of MM. MRI is superior in depicting the size of the lesion as compared to CT and conventional radiographs. PMID:24932201

Mohan, Ravi Prakash Sasankoti; Gill, Navneet; Verma, Sankalp; Chawa, Venkateshwar Rao; Tyagi, Kuber; Agarwal, Neha

2014-03-01

342

Quantitative DNA methylation analyses reveal stage dependent DNA methylation and association to clinico-pathological factors in breast tumors  

PubMed Central

Background Aberrant DNA methylation of regulatory genes has frequently been found in human breast cancers and correlated to clinical outcome. In the present study we investigate stage specific changes in the DNA methylation patterns in order to identify valuable markers to understand how these changes affect breast cancer progression. Methods Quantitative DNA methylation analyses of 12 candidate genes ABCB1, BRCCA1, CDKN2A, ESR1, GSTP1, IGF2, MGMT, HMLH1, PPP2R2B, PTEN, RASSF1A and FOXC1 was performed by pyrosequencing a series of 238 breast cancer tissue samples from DCIS to invasive tumors stage I to IV. Results Significant differences in methylation levels between the DCIS and invasive stage II tumors were observed for six genes RASSF1A, CDKN2A, MGMT, ABCB1, GSTP1 and FOXC1. RASSF1A, ABCB1 and GSTP1 showed significantly higher methylation levels in late stage compared to the early stage breast carcinoma. Z-score analysis revealed significantly lower methylation levels in DCIS and stage I tumors compared with stage II, III and IV tumors. Methylation levels of PTEN, PPP2R2B, FOXC1, ABCB1 and BRCA1 were lower in tumors harboring TP53 mutations then in tumors with wild type TP53. Z-score analysis showed that TP53 mutated tumors had significantly lower overall methylation levels compared to tumors with wild type TP53. Methylation levels of RASSF1A, PPP2R2B, GSTP1 and FOXC1 were higher in ER positive vs. ER negative tumors and methylation levels of PTEN and CDKN2A were higher in HER2 positive vs. HER2 negative tumors. Z-score analysis also showed that HER2 positive tumors had significantly higher z-scores of methylation compared to the HER2 negative tumors. Univariate survival analysis identifies methylation status of PPP2R2B as significant predictor of overall survival and breast cancer specific survival. Conclusions In the present study we report that the level of aberrant DNA methylation is higher in late stage compared with early stage of invasive breast cancers and DCIS for genes mentioned above.

2013-01-01

343

[Primary gastric lymphomas. Clinico-pathological study and evaluation of prognostic factors in 65 cases treated surgically].  

PubMed

Based on the histological criteria proposed by the REAL and adopted by the WHO Classification, 30 cases of MALT type lymphoma, 18 cases of diffuse large B cell lymphoma (DLCL), and 17 cases of DLCLs, associated with a MALT type, were identified in a series of 65 surgically treated primary gastric lymphomas. The clinical records of the patients were analyzed retrospectively and the resected specimens were immunostained for bcl-2, p53 and Ki-67. Primary gastric DLBCLs, with or without a MALT type component, disclosed a higher stage of local extension, a more frequent nodal involvement and a significantly worse survival than pure MALT types. High p53 expression and high proliferation rate correlated with the presence of a large cell component and appeared useful for its identification in mixed forms. Low bcl-2 expression discriminated DLCL from DLCL/MALT. Tumor size, stage and Mib-1 index revealed a value in predicting prognosis. PMID:11234301

Pozzi, B; Hotz, A M; Feltri, M; Cornaggia, M; Campiotti, L; Bonato, M; Pinotti, G; Capella, C

2000-12-01

344

[Clinico-nosographic considerations on the relation of depression and alcoholism in a population of 450 hospitalized alcoholics].  

PubMed

The presence of depressive symptomatology in alcoholics has frequently been encountered in clinical practice, but the relationship running between the two pathologies remains a subject for discussion. The methodological difficulty of this evaluation is seen in a major discordance of reported data. Against this background, a group of subjects hospitalized in a neuropsychiatric environment has been assessed for incidence of alcoholic and depressive pathologies and their possible correlations. Of 428 hospitalizations for alcoholism, 350 (82%) presented a depressive pathology. These patients were distinguished by DSM III into three groups [a) adaptation disturbance with depressed mood; b) dysthymic disturbance; c) atypical depression]. Within these groups, the incidence of prior stress-inducing psychosocial events was assessed according to the criterion of growing seriousness of DSM III. The results after statistical processing are discussed and compared with reported data. PMID:2336029

Angelini, G; Bogetto, F; Borio, R; Meluzzi, A; Mucci, P; Patria, D; Ricciardi, G; Torta, R

1990-01-01

345

Mucinous colorectal adenocarcinoma: influence of mucin expression (Muc1, 2 and 5) on clinico-pathological features and prognosis  

Microsoft Academic Search

Background  Mucinous component is associated with distinct clinical and pathological features and poor survival in colorectal cancer.\\u000a The purpose of this study was to determine differences in outcomes of patients with mucinous colorectal adenocarcinoma according\\u000a to the type of mucin expressed.\\u000a \\u000a \\u000a \\u000a Materials and Methods  Immunohistochemistry was performed in all tumors of patients who underwent radical surgery between 1998 and 2003 with mucinous

Rodrigo Oliva Perez; Bárbara Helou Bresciani; Cláudio Bresciani; Igor Proscurshim; Desiderio Kiss; Joaquim Gama-Rodrigues; Diego Daniel Pereira; Viviane Rawet; Ivan Cecconnello; Angelita Habr-Gama

2008-01-01

346

Emerging and Legacy Contaminants in The Foodweb in The Lower Columbia River: USGS ConHab Project  

NASA Astrophysics Data System (ADS)

An interdisciplinary study, USGS Columbia River Contaminants and Habitat Characterization (ConHab) project, investigates transport pathways, chemical fate, and effects of polybrominated diphenyl ethers (PBDEs) and other endocrine disrupting chemicals (EDCs) in aquatic media and the foodweb in the lower Columbia River, Oregon and Washington. Polar organic chemical integrative samplers (POCIS) and semipermeable membrane devices (SPMDs) were co-deployed at each of 10 sites in 2008 to provide a measure of the dissolved concentrations of select PBDEs, chlorinated pesticides, and other EDCs. PBDE-47 was the most prevalent of the PBDEs detected. Numerous organochlorine pesticides, both banned and current-use, including hexachlorobenzene, pentachloroanisole, dichlorodiphenyltrichloroethane (DDT) and its degradates, chlorpyrifos, endosulfan, and the endosulfan degradation products, were measured at each site. EDCs commonly detected included a series of polycyclic aromatic hydrocarbons (PAHs), fragrances (galaxolide), pesticides (chlorpyrifos and atrazine), plasticizers (phthalates), and flame retardants (phosphates). The downstream sites tended to have the highest concentrations of contaminants in the lower Columbia River. In 2009 and 2010 passive samplers were deployed and resident largescale suckers (Catostomus macrocheilus) and surface bed sediments were collected at three of the original sites representing a gradient of exposure based on 2008 results. Brain, fillet, liver, stomach, and gonad tissues were analyzed. Chemical concentrations were highest in livers, followed by brain, stomach, gonad, and, lastly, fillet. Concentrations of halogenated compounds in tissue samples ranged from <1 to 400 ng g-1 wet tissue. PBDEs, organochlorine pesticides, DDT and its degradates, and polychlorinated biphenyls (PCBs) were detected at all sites in nearly all organs tested. PBDE congeners most frequently detected and at the highest concentrations were PBDE-47 > PBDE-100 > PBDE-154 > PBDE-153. Concentrations in tissues and in sediments increased moving downstream from Skamania, WA to Columbia City, OR to Longview, WA. Preliminary biomarker results indicate that fish at the downstream sites experience greater stress relative to the upstream site based on gonad, kidney, spleen, and liver histopathology. These results support the hypothesis that contaminant concentrations in the environment correlate to bioaccumulation in the foodweb.

Nilsen, E. B.; Alvarez, D.; Counihan, T.; Elias, E.; Gelfenbaum, G. R.; Hardiman, J.; Jenkins, J.; Mesa, M.; Morace, J.; Patino, R.; Torres, L.; Waite, I.; Zaugg, S.

2012-12-01

347

A methodological approach to comparing pros and cons of delocalizing villages: socio-economic and technical issues  

NASA Astrophysics Data System (ADS)

On 7th March 2005, prolonged rainfalls combined with snowfalls activated a wide complex rock slide-earth flow that partly destroyed the village of Cavallerizzo at Cerzeto (Calabria, Southern Italy). Superposed tectonic units made of Palaeozoic metamorphic rocks, overlain by Miocene-Quaternary clastic terrains, crop out in the study area. The main scarp of the landslide developed by a recent normal fault, striking N-S along the western margin of the Crati graben and extended ca. 25 km. In its lower part, the phenomenon evolved in two main earth-flow bodies that extended along minor drainages and then merged along the S. Nicola torrent. The sector affected by the instability actually belongs to a large-scale slope movement: the 2005 activation was in fact only a paroxysmal episode of a long history of slope deformations, noticed in the area since the XVIII century. Warning signs had been recorded for weeks before the collapse, and the threatened area had been put under monitoring by CNR-IRPI. When the movement accelerated, people had already been alerted and evacuated (329 out of 581 inhabitants of Cerzeto were sheltered in nearby villages), thus neither victims nor injured were recorded. As a whole, 124 buildings were severely damaged or destroyed, the main road was interrupted. Immediately after the 7th March 2005 event, the national Department for Civil Protection decided to evaluate the feasibility of delocalizing Cavallerizzo to another site. At this purpose, CNR-IRPI was asked to analysing the "geological suitability" of 3 different sites (Pianette, Amatine, and Colombra), pre-selected by the same Municipality of Cerzeto in accordance to the Civil Protection; the results of the study were completed in early Summer 2005. Between October 2007 and December 2011, a new settlement was realized by the Italian Government, and the houses were delivered to people once living at Cavallerizzo. In the last years, the socio-economic effects of the delocalization of Cavallerizzo have been analysed within the frame of a PhD thesis by one of the authors. The present study focuses on the Cavallerizzo case study to discuss a methodological approach useful to comparing pros and cons of delocalizing villages, aiming at properly considering socio-economic effects in addition to technical issues.

Guadagno, Eleonora; Iovine, Giulio G. R.; Petrucci, Olga; Forciniti, Pinuccia R.

2014-05-01

348

In vitro and in vivo binding of snowdrop ( Galanthus nivalis agglutinin; GNA) and jackbean ( Canavalia ensiformis; Con A) lectins within tomato moth ( Lacanobia oleracea) larvae; mechanisms of insecticidal action  

Microsoft Academic Search

When fed in semi-artificial diet the lectins from snowdrop (Galanthus nivalis: GNA: mannose-specific) and jackbean (Canavalia ensiformis: Con A: specific for glucose and mannose) were shown to accumulate in vivo in the guts, malpighian tubules and haemolymph of Lacanobia oleracea (tomato moth) larvae. Con A, but not GNA, also accumulated in the fat bodies of lectin-fed larvae. The presence of

Elaine Fitches; Stephen D Woodhouse; John P Edwards; John A Gatehouse

2001-01-01

349

The beliefs about pros and cons of drinking and intention to change among hazardous and moderate alcohol users: a population-based cross-sectional study  

PubMed Central

Background: Fundamental to supporting hazardous alcohol users are the rationales for reducing alcohol intake highlighted by the users themselves. This study analyses the relative importance of beliefs about pros and cons of drinking in relation to having an intention to reduce intake among both hazardous and moderate alcohol users. Methods: Intention to change was assessed in a representative sample of Stockholm’s population (n = 4278, response rate 56.5%). Alcohol use was assessed using the Alcohol Use Disorders Identification Test measure. A decisional balance inventory was used to examine various beliefs about the pros and cons of drinking, which covered affect changes, social gains and losses, and possible adverse effects. Independent correlations were determined by logistic regression using a backward exclusion procedure (P > 0.05). Results: Higher ratings of importance were generally related to intent, whether or not the contrast was with having no intent or already having made a reduction. This was especially true for hazardous users. Only two beliefs were independently correlated with change among hazardous users: ‘Drinking could get me addicted’ and ‘Drinking makes me more relaxed/less tense’ (pseudo-R2 < 0.1). Among moderate users, there was no uniform pattern in the relationships. Conclusions: Unexpectedly, hazardous users with an intent to change rated pro arguments as more important than those with no intent to change. Of the investigated pros and cons, only a few were independently related to intention to change drinking behaviour. These arguments provide interesting topics in consultations. Little support was found for any rational decision making behind the intention to reduce alcohol intake.

Helgason, Asgeir R.; Ahacic, Kozma

2014-01-01

350

Sodium Tanshinone IIA Sulfonate Protects Mice From ConA-Induced Hepatitis via Inhibiting NF-?B and IFN-?\\/STAT1 Pathways  

Microsoft Academic Search

Introduction  Sodium tanshinone IIA sulfonate (STS) is a water-soluble derivative of tanshinone IIA, the main pharmacologically active component\\u000a of Salvia miltiorrhiza. The aim of this study was to investigate the effect of STS on concanavalin A (ConA)-induced hepatitis (CIH) in mice, an\\u000a experimental model of immune-mediated liver injury.\\u000a \\u000a \\u000a \\u000a Results  C57BL\\/6 mice pretreated with STS released much less alanine transaminase into plasma in

Yan Xu; Dechun Feng; Ying Wang; Shuting Lin; Lingyun Xu

2008-01-01

351

Deficiency of Con A-induced suppressor cell activity in peripheral blood mononuclear cells from Thai adults naturally infected with Plasmodium falciparum and Plasmodium vivax.  

PubMed

Con A-pretreated mononuclear (MNC) cells from Thai adults with naturally acquired P. falciparum or P. vivax malaria were significantly less effective in suppressing the responsiveness of autologous or normal allogeneic responder cells to mitogenic lectins or allogenic stimulator cells than pretreated cells from healthy donors. Serial studies of three patients demonstrated that reduced suppressor cell activity was present early in malaria infection but returned to normal soon after treatment. These studies demonstrate that the loss of T cells previously observed in patients with malaria, in part may functionally represent a loss of suppressor T cells. PMID:6226919

Gilbreath, M J; MacDermott, R P; Pavanand, K; Phisphumvithi, P; Kongchareon, S; Wimonwattrawatee, T

1983-09-01

352

Tissue factor expression in ovarian cancer: implications for immunotherapy with hI-con1, a factor VII-IgGF c chimeric protein targeting tissue factor  

Microsoft Academic Search

We evaluated the expression of tissue factor (TF) in ovarian cancer (EOC) and the potential of hI-con1, an antibody-like molecule\\u000a targeting TF, as a novel form of therapy against chemotherapy-resistant ovarian disease. We studied the expression of TF in\\u000a 88 EOC by immunohistochemistry (IHC) and real-time-PCR (qRT-PCR) and the levels of membrane-bound-complement-regulatory-proteins\\u000a CD46, CD55 and CD59 in primary EOC cell

Emiliano Cocco; Joyce Varughese; Natalia Buza; Stefania Bellone; Ken-Yu Lin; Marta Bellone; Paola Todeschini; Dan-Arin Silasi; Masoud Azodi; Peter E. Schwartz; Thomas J. Rutherford; Luisa Carrara; Renata Tassi; Sergio Pecorelli; Charles J. Lockwood; Alessandro D. Santin

353

Guided ion-beam studies of the reactions of Co(n)+ (n=2-20) with O2: cobalt cluster-oxide and -dioxide bond energies.  

PubMed

The kinetic-energy dependence for the reactions of Co(n)+ (n=2-20) with O2 is measured as a function of kinetic energy over a range of 0 to 10 eV in a guided ion-beam tandem mass spectrometer. A variety of Co(m)+, Co(m)O+, and Co(m)O2+ (m < or = n) product ions is observed, with the dioxide cluster ions dominating the products for all larger clusters. Reaction efficiencies of Co(n)+ cations with O2 are near unity for all but the dimer. Bond dissociation energies for both cobalt cluster oxides and dioxides are derived from threshold analysis of the energy dependence of the endothermic reactions using several different methods. These values show little dependence on cluster size for clusters larger than three atoms. The trends in this thermochemistry and the stabilities of oxygenated cobalt clusters are discussed. The bond energies of Co(n)+-O for larger clusters are found to be very close to the value for desorption of atomic oxygen from bulk-phase cobalt. Rate constants for O2 chemisorption on the cationic clusters are compared with results from previous work on cationic, anionic, and neutral cobalt clusters. PMID:16122305

Liu, Fuyi; Li, Feng-Xia; Armentrout, P B

2005-08-01

354

A wireless, remote-query and high sensitivity Escherichia coli O157: H7 biosensor based on the recognition action of Con A  

PubMed Central

Escherichia coli O157: H7 is detected using a remote-query (wireless, passive) magnetoelastic sensor platform to which a 1 µm-thick layer of Bayhydrol 110 and then a layer of functionalized mannose is applied. The multivalent binding of lectin concanavalin A (Con A) to the E. coli surface O-antigen and mannose favors the strong adhesion of E. coli to the mannose modified magnetoelastic sensor; E. coli is rigidly and strongly attached on the mannose-modified sensor through Con A, which works as a bridge to bind to the E. coli surface O-antigen and mannose modified sensor surface. As E. coli is bound to the sensor its resonance frequency shifts, enabling quantification of E. coli concentration with a limit of detection of 60 cells/mL and a linear logarithmic response range of 6.0×101 to 6.1×109 cells/mL. The analysis can be directly conducted without incubation, and completed in 3 h or less.

Lu, Qingzhu; Lin, Hailan; Ge, Shutian; Luo, Shenglian; Cai, Qingyun; Grimes, Craig A.

2009-01-01

355

Synsedimentary deformation of Pleistocene glaciolacustrine deposits in the Albese con Cassano Area (Southern Alps, Northern Italy), and possible implications for paleoseismicity  

NASA Astrophysics Data System (ADS)

We describe and interpret the well exposed soft-sediment deformations preserved in a Mid-Pleistocene proglacial sequence outcropping at Albese con Cassano, near Como (Southern Alps, N Italy). The observed deformations affect six distinct stratigraphic intervals within the same depositional sequence. The stratigraphy of this sequence, the geomorphic setting, and the careful geological mapping of the area clearly show that these deformations are not the result of glaciotectonics or cryoturbation, but are due to six separate events of synsedimentary liquefaction. In particular, the 3 basal deformed units include sand and gravel volcanoes that formed at the bottom of a proglacial lake. We examined several hypothesis of possible causative mechanism for the formation of these features. Taking into account all the information available on the local geology and sedimentary environment, it is possible to assess that the liquefaction features at Albese con Cassano had a coseismic origin. To our knowledge, this would be the first report of similar evidence of paleoseismicity in the Lombardia Southern Alps. Also, there is no record of historical liquefaction triggered by seismic events in an area of ca. 70 km of radius near Albese con Cassano, including the town of Como, the large metropolitan area of Milano and most of W Lombardia, that is one of the largest industrial districts in Europe. Therefore, the interpretation of the observed deformations can have critical impact for understanding the current seismicity level in the region, and mitigating the associated risk. In this paper we show that this interpretation is not a simple process. Liquefaction features must be treated with caution in order to derive suitable information for seismic hazard characterization, even if their coseismic origin has been definitely proved. It is necessary to understand the amount of seismic shaking (for instance, in terms of local macroseismic intensity) that can have produced that specific feature at that specific site, the location of the causative seismic event (epicenter and focal depth), and eventually its size (in terms of epicentral intensity and/or earthquake magnitude). In the case of Albese con Cassano, the implications in terms of seismic hazard of the observed possible earthquake paleoliquefactions can only be assessed through the definition of several scenarios, taking into account: a) different thresholds of shaking for triggering the described synsedimentary structures, and b) different seismotectonic frameworks related to the Mid-Pleistocene to Holocene evolution of the S Alps, including seismicity induced by isostatic glacial rebound. We conclude that it is worth checking these scenarios in the field with further paleoseismological research on other possible evidence of past earthquakes. There are no unequivocal sedimentological indicators of paleoseismicity, however, when carefully interpreted within the proper local seismotectonic context and compared with other earthquake-induced features, soft-sediment deformations can offer information of critical value for seismic hazard assessment.

Chunga, Kervin; Livio, Franz; Michetti, Alessandro M.; Serva, Leonello

2007-03-01

356

The role of intracellular high-mobility group box 1 in the early activation of Kupffer cells and the development of Con A-induced acute liver failure.  

PubMed

Acute liver failure (ALF) is a highly complex syndrome characterized by devastating activation of early activation of Kupffer cells (KCs) has been implicated in the pathogenesis of ALF. However, the factors regulating KC early activation are virtually unexplored. The aim of present study was to determine the role of the intracellular high-mobility group box 1 (HMGB1) in modulating the early activation of KCs during ALF. The intravenous injection of Concanavalin A (Con A) was used to establish a mouse model of ALF. The dynamic pro-inflammatory properties and MHC II expression of KCs were measured by qRT-PCR and flow cytometry. HMGB1 expression in KCs was measured by qRT-PCR and Western blotting. The immunofluorescence was implemented to determine the relocation of HMGB1 in KCs, and the siRNA against HMGB1 was utilized to assess the impact of HMGB1 on KC pro-inflammatory properties. The peak of pro-inflammatory cytokines production and MHC II expression in KCs appeared at the early stage of ALF. The up-regulation of HMGB1 expression and the translocation of HMGB1 in KCs were in parallel with the early activation of KCs. The blockade of intracellular HMGB1 expression caused by siRNA significantly inhibited the production of KC-derived pro-inflammatory cytokines, and led to a down-regulation of MAP kinase activation in KCs. The self-derived HMGB1 is an "early alarmin" of KC activation during Con A-induced ALF. HMGB1 might be a potential target for cell-specific strategy in ALF. PMID:23706499

Yang, Qiao; Liu, Yanning; Shi, Yu; Zheng, Min; He, Jiliang; Chen, Zhi

2013-10-01

357

Intracellular free zinc up-regulates IFN-? and T-bet essential for Th1 differentiation in Con-A stimulated HUT-78 cells  

PubMed Central

Zinc deficiency impairs cellular immunity. Up-regulation of mRNA levels of IFN-?, IL-12R?2, and T-bet are essential for Th1 differentiation. We hypothesized that zinc increases Th1 differentiation via up-regulation of IFN-? and T-bet expression. To test this hypothesis, we used zinc-deficient and zinc-sufficient HUT-78 cells (a Th0 cell line) under different condition of stimulation in this study. We also used TPEN, a zinc-specific chelator, to decrease the bioavailability of zinc in the cells. We measured intracellular free zinc, cytokines, and the mRNAs of T-bet, IFN-?, and IL-12R?2. In this study, we show that in zinc-sufficient HUT-78 cells (a Th0 cell line), mRNA levels of IFN-?, IL-12R?2, and T-bet in PMA/PHA-stimulated cells were increased in comparison to zinc-deficient cells. Although intracellular free zinc was increased slightly in PMA/PHA-stimulated cells, Con-A-stimulated cells in 5 ?M zinc medium showed a greater sustained increase in intracellular free zinc in comparison to cells incubated in 1 ?M zinc. The cells pre-incubated with TPEN showed decreased mRNA levels of IFN-? and T-bet mRNAs in comparison to cells without TPEN incubation. We conclude that stimulation of cells by Con-A via TCR, release intracellular free zinc which functions as a signal molecule for generation of IFN-? and T-bet, and IL-12Rb?2 mRNAs required for Th1 cell differentiation. These results suggest that zinc increase Th1 cell differentiation by up-regulation of IFN-? and T-bet, and IL-12Rb?2 mRNAs.

Bao, Bin; Prasad, Ananda S.; Beck, Frances WJ; Bao, Ginny W.; Singh, Tapinder; Ali, Shadan; Sarkar, Fazlul H.

2011-01-01

358

L'esperienza piemontese su oltre 200.000 gravidanze sottoposte a test di screening prenatale per la sindrome di Down dal 1990 al 2008: risultati con Tritest, Test integrato, Test combinato  

Microsoft Academic Search

Differenti marcatori e differenti associazioni di marcatori sono stati proposti dalla fine degli anni '80 per fornire un efficiente screening prenatale alle donne di tutte le età allo scopo di ottenere una stima più accurata del rischio individuale di sindrome di Down. In Piemonte i test di screening sono stati offerti dal 1990 con crescenti livelli di adesione. Le caratteristiche

Daniela C. Dall; Carla Bollati; Elisabetta Muccinelli; Franco Altare; Enza Pavanello; Varvara Guaraldo; Guglielmo Bracco; Annarita Filippo; Daniela Fortina; Elsa Viora; Simona Bastonero; Giuseppe Errante; Andrea Sciarrone; Marco Pagliano; Elena Gullino; Maria Grazia Alemanno; Simona Sdei; Roberto Scali; Pietro Gaglioti; Tullia Todros

359

¿CÓMO COMPITEN LAS PYMES EN LOS MERCADOS INTERNACIONALES? ANÁLISIS DE UN CLÚSTER LOCAL CON VOCACIÓN EXPORTADORA \\/ HOW DO SMEs COMPETE IN THE INTERNATIONAL MARKET? ANALYSIS OF AN EXPORT-ORIENTED LOCAL CLUSTER  

Microsoft Academic Search

Esta investigación trata de examinar si las empresas con distinto nivel de intensidad exportadora se diferencian respecto de los elementos competitivos que sustentan su competitividad en el mercado exterior, así como respecto de las estrategias de marketing que implementan en su actividad comercial internacional. Para ello, se examina una muestra de pymes pertenecientes a un clúster agroindustrial competitivo a nivel

David Jiménez Castillo; José Luis Ruiz Real; Manuel Sánchez Pérez

2012-01-01

360

Contenido de hierro y cinc en la semilla y su respuesta al nivel de fertilización con fósforo en 40 variedades de fríjol colombianas Seed iron and zinc content and their response to phosphorus fertilization in 40 Colombian bean varieties  

Microsoft Academic Search

El mejoramiento del fríjol en Colombia ha producido un amplio número de variedades para diferentes zonas agroecológicas y con diferentes rangos de adaptación. Los objetivos de esta investigación fueron determinar la calidad nutricional del fríjol en Colombia en cuanto al contenido de hierro y cinc en el grano y entender cómo los niveles de fertilización del suelo alta y baja

Carolina Astudillo; Matthew W. Blair

2008-01-01

361

Los estudios de las dietas alimenticias bajas en grasa, altas en fibra y ricas en frutas y vegetales no revelan efecto alguno en la formación de nuevos pólipos colorrectales en personas con antecedentes de pólipos precancerosos  

Cancer.gov

Dos nuevos estudios sobre el impacto nutricional en personas con alto riesgo de desarrollar cáncer colorrectal no mostraron evidencia de que la dieta afecta la formación de pólipos colorectales precancerosos (pólipos adenomatosos o adenomas) en personas a las que ya se les extrajo un pólipo.

362

ACTIVIDADES FORESTALES Y SU RELACIÓN CON EL SIG EN FORESTAL BOSQUES DEL PLATA S.A. FORESTRY ACTIVITIES AND THEY RELATIONSHIPS WITH THE GIS IN FORESTAL BOSQUES DEL PLATA S.A  

Microsoft Academic Search

Resumen El objetivo del presente trabajo es presentar las relaciones existentes entre algunas de las actividades forestales actualmente desarrolladas en Forestal Bosques del Plata S.A. y el sistema de información geográfica (SIG) vigente. Con el uso de nuevas tecnologías y capacitación del personal se han desarrollado proyectos de estudios de plantación establecida, instalación de parcelas permanentes, fichas de rodal y

R. Trujillo; R. Pezzutti; S. Schmidt; F. Rodríguez

363

Antiviral usage for H1N1 treatment: pros, cons and an argument for broader prescribing guidelines in the United States.  

PubMed

Current CDC guidelines for antiviral treatment of people with influenza like illness (ILI) effectively discourage treatment of people with no underlying medical conditions unless they exhibit severe symptoms, such as evidence of lower respiratory tract infection or clinical deterioration. This guidance is unlike that provided by some other countries, which allow for treatment of most moderately symptomatic individuals. We examine evidence for benefits of antiviral usage for influenza treatment, including its relation to severe outcomes for the current pandemic H1N1 strain. We also discuss some of the potential cons of antiviral usage. In the current situation in the US, with an elevated and evidently growing burden of influenza hospitalizations and mortality, a high percentage of individuals infected with influenza (with almost all of those carrying the H1N1pdm strain) among those who exhibit ILI and get tested for influenza virus, very low levels of antiviral resistance and little time left for antiviral resistance to take off before large quantities of vaccine become available, we think it is worthwhile to consider a revision to the current antiviral usage recommendations, such that physicians would be encouraged to consider prescribing antivirals to individuals with moderate to severe symptoms who present for treatment.Note: Very recently CDC has adopted clarifications for its antiviral usage guidelines: http://www.cdc.gov/H1N1flu/antivirals/facts_clinicians.htm. PMID:20029660

Goldstein, Edward; Lipsitch, Marc

2009-01-01

364

The pros and cons of routine central compartment neck dissection for clinically nodal negative (cN0) papillary thyroid cancer  

PubMed Central

Metastatic disease to regional lymph nodes (LNs) is common in papillary thyroid carcinoma (PTC). LN dissection is increasingly performed as part of the surgical management of PTC. The role of prophylactic central neck dissection (pCND) in PTC is unclear. There is limited evidence to support a routine pCND in clinical setting for nodal negative (cN0) PTC. The aim of this review was to examine the pros and cons of prophylactic neck dissection in cN0 PTC. In summary, the advantages of pCND are: removal of the central LNs that potentially harbor micro-metastases, more accurate staging of disease in order to plan more individualized management, reducing the need for re-operation to remove the metastatic LNs which have developed later and possible improvement in overall survival. The disadvantages are: an extensive surgery but lack of evidence of survival benefit, higher incidence of complications with little impact on local recurrence rate, possibility of over treating in cN0 patients and it does not sound like a cost effective approach in the management of small thyroid cancer. Considering low frequency of permanent morbidity, some authors believe that prophylactic neck dissection is safe in experienced hands even though its prognostic benefit has yet to be demonstrated.

Chan, Ai Chen; Wong, Kai Pun

2013-01-01

365

Entrenamiento con el traje espacial  

NASA Video Gallery

Después de 10 paseos espaciales, el astronauta de la NASA Michael López- Alegría sabe bastante de trajes espaciales. En este video, López Alegría comparte su experiencia acerca del uso y el entrena...

366

Galaxias con núcleo doble. III  

NASA Astrophysics Data System (ADS)

We performed new spectroscopic and photometric observations of late type galaxies with double nuclei and without previous studies. The subsample, constituted by double nuclei galaxies without tidal tails, was selected from the Double Nuclei Galaxies Preliminary Catalog (Gimeno, Díaz & Carranza 1999) and the observations were performed at Bosque Alegre Astrophysical Station. We report and discuss specially the results for ESO 416-G06, ESO 381-IG23 and Fairal 58. In all cases the secondary nucleus presents bluer color indexes than the main nucleus and also larger H? equivalent widths. These objects follow the trend of smaller radial velocity differences when smaller are the separations between both nuclei; this correlation was observed in previous works (e.g. Gimeno, Díaz & Carranza 1998). The general picture is consistent with the scenario of star formation enhanced by the capture of a minor or satellite galaxy.

Gimeno, G.; Díaz, R. J.; Carranza, G.

367

Believing Others: Pros and Cons  

Microsoft Academic Search

In open environments there is no central control over agent behaviors. On the contrary, agents in such systems can be assumed to be primarily driven by self interests. Un- der the assumption that agents remain in the system for sig- nificant time periods, or that the agent composition changes only slowly, we have previously presented a prescriptive strategy for promoting

Sandip Sen; Anish Biswas; Sandip Debnath

2000-01-01

368

Cabergoline treatment in acromegaly: cons.  

PubMed

Many options are available for the treatment of acromegaly, including surgery, radiotherapy, and medical treatment. Cabergoline (CAB), a dopamine agonist with high affinity for dopamine receptor type 2, has been used both in monotherapy and in conjunction with somatostatin analogs (SSAs). Although it is administered orally and has a relatively lower-cost in comparison with SSAs, few studies have demonstrated its usefulness, there is a lack of randomized-controlled trials and other drugs (SSAs and pegvisomant) with more data in the literature are available; these issues are the main drawbacks of adopting CAB for the treatment of acromegaly. PMID:24504766

Kasuki, Leandro; Vieira Neto, Leonardo; Gadelha, Mônica R

2014-06-01

369

I-ConFIRM Membership  

Cancer.gov

Skip to Main Content at the National Institutes of Health | www.cancer.gov Epidemiology and Genomics Research In NCI's Division of Cancer Control and Population Sciences Menu Search EGRP Site: EGRP Home About the Program Mission & Vision Organizational

370

A method for transforming a full computation of the effects of a complex-explosion scenario to a simple computation by ConWep  

NASA Astrophysics Data System (ADS)

When a large amount of explosive that is stored inside a structure explodes, a blast wave is generated. The strength of the blast depends on both the explosive (type and weight) and the properties of the storing structure, since part of the blast energy is needed to destroy the structure. If one is to determine the dynamic load (e.g., pressure and impulse) that is exerted by the blast on a neighboring structure, he needs to conduct a full numerical simulation with a validated numerical code. If the amount of the stored explosive changes while the storing structure remains the same a new full hydrodynamic computation is required. In the present study, we present a method by which, for a given structure inside which explosive is stored, only a few full hydrodynamic computations with different amounts of explosive are required in order to obtain the resulted blast wave load on a neighboring structure that is located at different distances from the exploding structure for any amount of explosive between the minimal and the maximal amounts that were used in the full hydrodynamic computations. By means of the proposed method, the problem, which as mentioned above needs a full hydrodynamic computation, is replaced by an equivalent problem of the explosion of a bare hemispherical charge. The equivalent problem can be solved by means of an empirical model such as ConWep, which is very simple to apply. The solution of the equivalent problem results in identical peak pressure and peak impulse at close and far ranges from the explosion source and very similar pressure and impulse profiles at far ranges. The proposed method is demonstrated by an explanatory example in which the effect of an explosion inside an ammunition magazine on the surroundings is studied.

Ostraich, B.; Sadot, O.; Levintant, O.; Anteby, I.; Ben-Dor, G.

2011-04-01

371

[Gioco d'azzardo patologico e impulsività: uno studio italiano].  

PubMed

RIASSUNTO. Scopo. Il gioco d'azzardo patologico (GAP) viene attualmente classificato nell'ambito dei disturbi del controllo degli impulsi e condivide caratteristiche cliniche comuni con il disturbo da uso di sostanze e con i disturbi del controllo degli impulsi. Da un punto di vista clinico e neurobiologico l'impulsività è considerata l'elemento chiave sia dei comportamenti impulsivi sia delle dipendenze. Scopo di questo lavoro è stato quello di valutare l'impulsività mediante la BIS-11, in un gruppo di pazienti drug-free affetti da GAP, rispetto a un gruppo di soggetti sani, e di esplorare le eventuali correlazioni con le caratteristiche cliniche e la gravità del disturbo stesso. Metodi. Sono stati inseriti nel nostro studio 35 pazienti (tutti di sesso maschile) affetti da GAP, diagnosticato secondo i criteri del DSM-IV-TR, e confrontati con 35 soggetti sani di controllo. La gravità della sintomatologia è stata valutata mediante il South Oaks Gambling Screen (SOGS). Risultati. I risultati ottenuti hanno evidenziato che il punteggio totale della BIS-11, di alcuni fattori (impulsività motoria e complessità cognitiva) e sottoscale (impulsività motoria e senza pianificazione) erano significativamente più alti nei pazienti rispetto ai controlli sani. Sono state inoltre rilevate alcune correlazione positive tra il punteggio totale della SOGS e quelli della BIS-11, delle scale relative all'impulsività attentiva e all'instabilità cognitiva, e delle sottoscale dell'impulsività attentiva e dell'impulsività motoria. Discussione. Questi dati suggeriscono che possa esistere un'associazione tra impulsività e GAP, in accordo con l'ipotesi che l'impulsività rappresenta un elemento chiave del GAP correlato alla gravità del quadro clinico. PMID:24770575

Marazziti, Donatella; Picchetti, Michela; Baroni, Stefano; Consoli, Giorgio; Ceresoli, Diana; Massimetti, Gabriele; Catena Dell'osso, Mario

2014-01-01

372

Efecto de la fertilización sobre la calidad de la papa para procesamiento en dos suelos antioqueños con propiedades ándicas Effects of fertilization on the industrial quality of potato in two antioquian Andisol soils  

Microsoft Academic Search

En este estudio se evaluó el efecto de tres niveles de NPK a la siembra (500, 1.500 y 3.000 kg·ha -1 ) en combinación con Ca (0, 2, 3 y 7 meq·100g -1 ), Mg (0; 0,7; 1,4 y 3,0 meq·100g -1 ), B (0; 0,5; 1,0 y 2,0 ppm) y S (0, 10, 20 y 40 ppm) sobre el

José M. Cotes

2008-01-01

373

Composite endpoints in clinical trials.  

PubMed

Composite endpoints are often used in clinical trials, especially in the cardiovascular area. Decreases in sample size requirements, ability to assess the net effect of an intervention and to avoid bias in presence of competing risks are the most cited advantages for their use. However, there is a risk of misinterpretation when heterogeneity among components with respect to either importance, number of events, or magnitude of treatment effect exist. In the following review we present a conceptual discussion about the rationale and interpretation of such variables. Also, a user's friendly guide to interpret the results of clinical trials based on composite endpoints is presented. We also present an empirical study that provides evidence of the use of misleading composite endpoints in cardiovascular clinical trials. Las variables de resultado combinadas en los ensayos clinicos son un recurso metodologico usado con frecuencia, especialmente en los estudios cardiovasculares. Las motivaciones más importantes para su utilizacion son aumentar la potencia estadística del estudio, valorar el beneficio neto de una intervencion y evitar una interpretacion errónea del resultado en presencia de riesgos competitivos. Sin embargo, su interpretación puede ser problemática si hay heterogeneidad entre los componentes en cuanto a su importancia, la frecuencia de eventos o el efecto de la intervencion. En la discusión que sigue se presenta un revisión conceptual de los problemas del uso y la interpretación de las variables de resultado combinadas en ensayos clinicos, especialmente los cardiovasculares. Se presenta además una sencilla guia de interpretacion de los resultados de los estudios que utilizan variables de resultado combinadas a partir de la cual se puede valorar nuestra confianza en dichos resultados. Finalmente, se presenta un estudio empírico sobre cuál ha sido el uso real de variables de resultado combinadas potencialmente problemáticas en ensayos clinicos cardiovasculares. PMID:24775785

Ferreira-González, Ignacio; Alonso-Coello, Pablo; Solà, Ivan; Pacheco-Huergo, Valeria; Domingo-Salvany, Antónia; Alonso, Jordi; Montori, Víctor; Permanyer-Miralda, Gaietá

2008-01-01

374

Structural evolution of the Day Nui Con Voi metamorphic complex: Implications on the development of the Red River Shear Zone, Northern Vietnam  

NASA Astrophysics Data System (ADS)

The Day Nui Con Voi (DNCV) metamorphic complex in North Vietnam is the southernmost high-grade metamorphic zone along the NW-SE trending Red River Shear Zone (RRSZ) in Indochina. The RRSZ was considered as a classical large-scale continental strike-slip fault that had played a significant role in the continental extrusion of Southeast Asia since the collision of India and Eurasia. Earlier ideas determined the RRSZ as a steep shear zone that penetrated the entire lithosphere. Both metamorphism and structures within rocks along the DNCV metamorphic complex have been previously thought to be formed syn-tectonically by left-lateral shearing of the RRSZ during the Oligocene-Miocene continental escape tectonics. However, our meso- and microstructural re-examination of this region shows that these metamorphic rocks were formed during earlier tectonic episodes unrelated to strike-slip shearing. High angle to near orthogonal overprinting fabrics indicated that this region recorded three episodes of ductile deformation followed by brittle faulting events with different intensity spanning from the Triassic to the Tertiary. D 1 is preserved as NW-SE striking upright folds under garnet grade regional metamorphism during the Triassic Indosinian orogeny as South China block amalgamated with the Indochina block. The large-scale horizontal D 2 folds with a dominant top to N-NW bottom to S-SW sense of shear, and sub-horizontal fold axial planes suggest that the DNCV metamorphic complex remained at midcrustal depths since the Indosinian orogeny. The youngest ductile deformation event, D 3, refolded D 2 recumbent folds into a dome, and uplifted the DNCV as lower-temperature fabrics, S 3, indicated. Steep mylonite zones with left-lateral kinematic indicators and brittle faulting were developed on both limbs of the dome along the steep Song Hong and Song Chay faults during left-lateral movement of the RRSZ. Our new spatial, temporal and kinematic correlations of metamorphic fabrics within the DNCV metamorphic complex support the suggestion that the RRSZ developed after regional metamorphism and remained purely a crustal fault. The complicated deformation history recorded within the DNCV metamorphic complex provides an alternative interpretation and suggests that crustal scale strike-slip faults (such as the RRSZ) need not root from the mantle.

Yeh, Meng-Wan; Lee, Tung-Yi; Lo, Ching-Hua; Chung, Sun-Lin; Lan, Ching-Ying; Anh, Tran Tuan

2008-12-01

375

Study on the Strategies for the Soil and Water Resource Con-servation of Slopeland in Taiwan in Response to the Extreme Climate  

NASA Astrophysics Data System (ADS)

Global climate change results in extreme weather, especially ex-treme precipitation in Taiwan. Though the total amount of precipi-tation remains unchanged, the frequency of rainfall return period increases which affects slopeland and causes sediment disaster. In Taiwan, slopeland occupies about 73% of national territory. Under harsh environmental stress, soil and water conservation of slope-land becomes more important. In response to the trends of global-ization impacts of climate change, long term strategic planning be-comes more necessary. This study reviewed international practices and decision making process about soil and water conservation of slopeland; and conducted the compilation and analysis of water and soil conservation related research projects in Taiwan within the past five years. It is necessary for Taiwan to design timely adaptive strategies about conducting the all-inclusive conservation of na-tional territory, management and business operation of watershed based on the existing regulation with the effects of extreme weather induced by climate change and the changes of social-economic en-vironments. In order to realize the policy vision of "Under the premise of multiple uses, operating the sustainable business and management of the water and soil resources in the watershed through territorial planning in response to the climate and so-cial-economic environment change". This study concluded the future tasks for soil and water con-servation: 1.Design and timely amend strategies for soil and wand water conservation in response to extreme weather. 2. Strengthen the planning and operating of the land management and integrated conservation of the water and soil resources of key watershed. 3. Manage and operate the prevention of debris flow disaster and large-scale landslide. 4. Formulate polices, related regulations and assessment indicators of soil and water conservation. 5. Maintain the biodiversity of the slopeland and reduce the ecological footprint. 6. Conduct soil and water conservation research according to the importance and urgency of policies. 7. Implement the international cooperation, technology communication, talent cultivation, and integrated education and promotion.

Huang, Wen-Cheng

2014-05-01

376

To estimate salivary aspartate aminotransferase levels in chronic gingivitis and chronic periodontitis patients prior to and following non-surgical periodontal therapy: A clinico-biochemical study  

PubMed Central

Context: Saliva can be used as a diagnostic fluid in dentistry. Various enzymes have been proposed as markers for periodontal destruction. One of them is aspartate aminotransferase, for which salivary analysis can offer a cost-effective approach for monitoring the disease. Changes in enzymatic activity reflect metabolic changes in the gingiva and periodontium in inflammation. Aims: The purpose of this study was to assess the aspartate aminotransferase levels in saliva prior to and following scaling and root planning (SRP) at 1 month and 3 month interval and correlating it with the clinical parameters in generalized chronic gingivitis and chronic periodontitis patients. Materials and Methods: Thirty patients with generalized chronic gingivitis and 30 with generalized chronic periodontitis were selected. The activity of aspartate aminotransferase levels in saliva were assessed biochemically before and after SRP at 1 month and 3 months. The aspartate aminotransferase levels were correlated with clinical parameters (gingival index and probing depth). Statistical Analysis Used: A paired t test was done. Results: A decrease in gingival index, probing depth, and aspartate aminotransferase levels were seen in both the groups at 1 and 3 months which was found to be statistically highly significant (P value 0.00). Aspartate aminotransferase levels were statistically significantly correlated with the clinical parameters at baseline (P < 0.05) but at 3 months, a positive correlation was seen in both the groups which was statistically insignificant (P > 0.05). Conclusions: Elevated salivary aspartate aminotransferase levels were seen in generalized chronic gingivitis and chronic periodontitis patients, with higher values recorded in generalized chronic periodontitis correlating to the tissue destruction taking place in these conditions.

Kudva, Praveen; Saini, Neha; Kudva, Hema; Saini, Varun

2014-01-01

377

Clinico-epidemiological profile of oral potentially malignant and malignant conditions among areca nut, tobacco and alcohol users in Eastern India: A hospital based study  

PubMed Central

Context: With an increase in the abuse of various oral habitual products in India over the past few decades; the incidence of oral potentially malignant conditions as leukoplakia, oral submucous fibrosis and squamous cell carcinoma (SCC) rates have also increased. No recent study has been conducted reporting the scenario of oral cancer and potentially malignant conditions in Eastern India (specifically Kolkata). Aims: The present study was conducted at Dr. R. Ahmed Dental College, Kolkata during 2010-2011 to find a possible correlation between the effects of the different oral habits, age, sex and the different types of oral mucosal lesions among patients reported to the hospital. This study also enabled us to see the predilection of the various histopathological stages of the lesions for different sites of the oral cavity. Subjects and Methods: The study group consisted of 698 patients having either oral potentially malignant or malignant lesion. The control group consisted of 948 patients who had reported to the hospital for different oral/dental problems and had the habit of tobacco, areca nut and/or alcohol usage for at least 1 year. Statistical Analysis: The unadjusted odds ratio, the 95% confidence interval, and the P value were calculated to correlate patients with/without different kinds of habit and having/not having various kinds of oral lesions. Results: Our study shows that for males having the habit of taking smokeless tobacco or mixed habit poses the highest risk for developing SCC. For females, significant risk of developing SCC was found in patients habituated to processed areca nut chewing. Conclusion: This study presents probably for the first time in recent years the occurrence of oral potentially malignant and malignant conditions amongst patients having deleterious habits in a hospital based population of Kolkata.

Ray, Jay Gopal; Ganguly, Madhurima; Rao, BH Sripathi; Mukherjee, Sanjit; Mahato, Basudev; Chaudhuri, Keya

2013-01-01

378

Clinical progression in Charcot-Marie-Tooth disease type 1A duplication: clinico-electrophysiological and MRI longitudinal study of a family.  

PubMed

Long-term follow-up studies in Charcot-Marie-Tooth disease type 1 duplication (CMT1A) are scanty. Here we describe a longitudinal study in a CMT1A pedigree. Our CMT1A pedigree comprised 11 examined patients, ages between 13 and 83 (median, 36) years, serially evaluated for up to 26 years. In all 11 patients we carried out electrophysiological evaluation, and in three of them magnetic resonance imaging (MRI) of lower-limb musculature. The 54-year-old proband patient, yearly examined as of age 28, developed at age 48 gradual and progressive distal lower-leg weakness ascending to thigh musculature. His serial electrophysiological studies showed diffuse slowing of motor conduction velocity, absence or severe attenuation of distal compound muscle action potentials, and spontaneous muscle activity in the tibialis anterior and rectus femoris. Two MRI studies of lower limbs, at ages 51 and 54, showed extensive fatty atrophy of lower-leg musculature, and progressive and distally accentuated fatty atrophy of anterior and posterior femoral muscles. An outstanding finding in the first MRI was the presence of marked edema of anterior femoral musculature, which to a great degree was replaced by fatty atrophy in the second study. Muscle edema was also noted in lower-leg and posterior femoral musculature. There was minimal fatty atrophy of the gluteus maximus, the remaining pelvic muscles being preserved. The other ten patients showed mild or moderate phenotype, which remained quiescent over the period of observation. Electrophysiological studies disclosed diffuse and uniform slowing of nerve conduction velocities; in no case was spontaneous muscle activity recorded. MRI showed the CMT1A characteristic pattern of distally accentuated fatty atrophy involving foot and lower-leg musculature with preservation of thigh musculature. We conclude that a small proportion of patients with CMT1A develop a late progression of disease manifested with accentuated distal leg weakness ascending to involve thigh musculature, and that long-term follow-up is essential for its detection. PMID:20443018

Berciano, José; Gallardo, Elena; García, Antonio; Ramón, César; Infante, Jon; Combarros, Onofre

2010-10-01

379

Short-Term Clinico-Radiographic Response to Super-Selective Intra-Arterial Cerebral Infusion of Bevacizumab for the Treatment of Vestibular Schwannomas in Neurofibromatosis Type 2  

PubMed Central

Summary Neurofibromatosis type 2 (NF2) is an autosomal dominant syndrome with a prevalence of approximately 1 in 30,000. NF 2 is characterized by bilateral vestibular schwannomas, as well as meningiomas, ependymomas and gliomas. Currently, surgical resection and radiotherapy represent the mainstay of treatment, although new studies suggest a role for certain chemotherapeutic agents. Intravenous administration of Bevacizumab (Avastin, Genetech Pharmaceuticals) has been shown to be active in the treatment of vestibular schwannomas. The IV route of administration, however, carries a risk of known systemic side-effects such as bowel perforation, wound dehiscence and pulmonary embolism. In addition, the percentage of drug that reaches the tumor site may be restricted by the blood tumor barrier. This report describes the super-selective intra-arterial infusion of Bevacizumab following blood brain barrier disruption for the treatment of vestibular schwannomas in three patients with Neurofibromatosis type 2. It represents the first time such a technique has been performed for this disease. Additionally, this method of drug delivery may have important implications in the treatment of patients with vestibular schwannomas associated with Neurofibromatosis type 2.

Riina, H.A.; Burkhardt, J-K.; Santillan, A.; Bassani, L.; Patsalides, A.; Boockvar, J.A.

2012-01-01

380

Comparison of matrix metalloproteinase-3 and tissue inhibitor of matrix metalloproteinase-1 levels in gingival crevicular fluid in periodontal health, disease and after treatment: A clinico biochemical study  

PubMed Central

Background: Considering the role of matrix metalloproteinase-3 (MMP-3) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) in the pathogenesis of periodontitis, the present study is to estimate the levels of MMP-3 and TIMP-1 in gingival crevicular fluid (GCF) in periodontal health, disease and to evaluate the effect of periodontal therapy on MMP-3 and TIMP-1 concentrations in GCF. Materials and Methods: A periodontal examination and collection of GCF by extra-crevicular method was performed in 30 subjects selected randomly and categorized into 3 groups. Group I consists of 10 subjects Group II consists of 20 patients and Group III consists of 20 patients of Group II. Non surgical periodontal therapy was performed, and GCF was collected after 8 weeks from the same site of 20 chronic periodontitis patients who are considered as Group III. MMP-?3 and TIMP-1 levels were estimated in GCF-samples by using enzyme-linked immunosorbent assay. The findings were analyzed using the software and descriptive statistical methods such as Mann-?Whitney U-test and Kruskal-Wallis test. P value < 0.001 was considered significant. Results: MMP-3 and TIMP-1 was detected in all samples. Highest mean MMP-3 concentrations in GCF were obtained for Group II (7.490 ng/ml) while the lowest concentrations were seen in Group I (0.344 ng/ml) and Group III (2.129 ng/ml). This suggests that MMP-3 levels in GCF increases proportionally with the progression of periodontal disease and decreases after treatment. Lowest mean TIMP-1 concentrations in GCF were obtained for Group-II (1.592 ng/ml), while the highest concentrations were seen in Group-I (8.78 ng/ml) and Group-III (6.40 ng/ml). This suggests that TIMP-1 levels in GCF decreases proportionally with progression of periodontal disease and increases after treatment. Conclusion: There is a substantial increase in the concentrations of MMP-3 and decrease in TIMP-1 as periodontal disease progress. Since MMP-3 and TIMP-1 levels in GCF are positively correlated with gingival index, probing pocket depth, and clinical attachment loss, MMP-3, and TIMP-1 may be considered as a Novel Biomarkers in periodontal disease. However, controlled, longitudinal studies are needed to confirm this possibility.

Kumar, P. Mohan; Reddy, N. Ravindra; Deepa, A.; Babu, D. S. Madhu; Kumar, A. Kishore; Chavan, Vinay

2013-01-01

381

A Study on the Clinico-Epidemiological Profile and the Outcome of Snake Bite Victims in a Tertiary Care Centre in Southern India  

PubMed Central

Background: Snake bite is a common medical emergency and an occupational hazard, more so in tropical India, where farming is a major source of employment. The available data on the epidemiology of snake bite from the Indian subcontinent are sparse. Snake bite is a neglected disease that afflicts the most impoverished inhabitants of the rural areas in the tropical developing countries. Aims: This study was carried out to describe the epidemiology, arrival delays, clinical features, complications, and the outcome of snakebites which were seen in a tertiary care hospital of southern India. Setting: Sri Chamarajendra District Hospital which is attached to the Hassan Institute of Medical Sciences, Hassan, Karnataka, India. Study Design: A record–based, retrospective, descriptive study. Materials and Methods: One hundred eighty patients of snake bite were studied from January 2010 to December 2011. The data on the demographic factors, clinical features and complications, details of the treatment which was received and the outcome of the snake bite victims were recorded and analyzed. Results: Among a total 180 cases of snake bite, there were 108 cases of viper bite which presented with haematotoxic manifestations and 74 elapid bites had neuroparalytic manifestations. The victims were predominantly males (60.5%) and they were aged 20-40 years. A majority of the victims are from the rural areas (81.1%) and most of the bites occurred during the day time (70.5%), mainly on the lower limbs (67.2%). The highest number of cases occurred during July- September. Most of the victims were farmers (54.4%) and plantation workers (30.5%), which suggested that snake bite was an occupational hazard. A reaction to the ASV was noted in 12.7% of the patients and the mortality rate in our study was 3.8%. Conclusion: In the tropics, snake bite is a rural and an occupational hazard among farmers, plantation workers, herders and hunters. Regular public health programmes regarding the prevention, pre –hospital management (first aid) and the importance of the early transfer to the hospital should be emphasized.

B.R., Halesha; L., Harshavardhan; A J., Lokesh; P.K., Channaveerappa; K.B, Venkatesh

2013-01-01

382

Correlation of vascular endothelial growth factor expression with fibroblast growth factor-8 expression and clinico-pathologic parameters in human prostate cancer  

PubMed Central

Vascular endothelial growth factor (VEGF) mediates neo-angiogenesis during tumour progression and is known to cooperate with the fibroblast growth factor (FGF) system to facilitate angiogenesis in a synergistic manner. In view of this, we have investigated VEGF expression in 67 cases of prostate cancer previously characterized for fibroblast growth factor-8 (FGF-8) expression. Cytoplasmic VEGF staining was detected in malignant cells in 45 out of 67 cases. Cytoplasmic staining was found in adjacent stromal cells in 32 cases, being particularly strong around nests of invasive tumour. Positive VEGF immunoreactivity in benign glands was restricted to basal epithelium. A significant association was observed between tumour VEGF and FGF-8 expression (P = 0.004). We identified increased VEGF immunoreactivity in both malignant epithelium and adjacent stroma and both were found to be significantly associated with high tumour stage (P = 0.0047 and P = 0.0002, respectively). VEGF expression also correlated with increased serum PSA levels (P = 0.01). Among positively stained tumours, VEGF expression showed a significant association with Gleason score (P = 0.04). Cases showing positive VEGF immunoreactivity in the stroma had a significantly reduced survival rate compared to those with negative staining (P = 0.037). Cases with tumours expressing both FGF-8 in the malignant epithelium and VEGF in the adjacent stroma had a significantly worse survival rate than those with tumours negative for both, or only expressing one of the two growth factors (P = 0.029). Cox multivariate regression analysis of survival demonstrated that stromal VEGF and tumour stage were the most significant independent predictors of survival. In conclusion, we report for the first time a correlation of both tumour and stromal VEGF expression in prostate cancer with clinical parameters as well as its correlation to FGF-8 expression. © 2001 Cancer Research Campaign http://www.bjcancer.com

West, A F; O'Donnell, M; Charlton, R G; Neal, D E; Leung, H Y

2001-01-01

383

Clinico-Electroencephalography Pattern and Determinant of 2-year Seizure Control in Patients with Complex Partial Seizure Disorder in Kano, Northwestern Nigeria  

PubMed Central

Background: Complex partial seizures (CPS) may present with milder symptoms mimicking normal function of an adult person making the diagnosis delayed or often missed. There is a need for an in-depth training in epileptology to understand the various pattern of electro-clinical presentation of CPS. Ability to predict seizure control on first diagnosis can be very useful in the management of patients with CPS. However, there is a paucity of data on CPS in North-western Nigeria. Aim: This study aimed to describe the clinical and EEG characteristics of CPS and evaluate independent determinant of 2-year seizure control among adults with partial epilepsy in Kano, North-western Nigeria. Subjects and Methods: Out of all patients diagnosed with epilepsy (PWE) at the adult neurology clinic of two tertiary hospitals in Kano over a period of 4½ years, those with CPS were prospectively studied. Diagnosis of CPS was based on both clinical and EEG findings. Patients were followed-up for a minimum period of 2-year to determine their seizure control status. Data were analyzed using STATA version 10. Results: Total of 158 (105 males, 53 females) were enrolled. Their age ranged between 15 and 85 (median = 30.5) years. Sixty six (66/158,41.7%) had aura and 64 of them (64/158, 41.1%) had automatism. The most common aura and automatism were abnormal epigastric sensation and oro-alimentary respectively. Twenty eight (28/158, 18%) had associated behavioral manifestations. EEG abnormality was recorded in 56 (56/158, 53.9%). Adequate seizure control was achieved in 55% (70/128) on anti-epileptic drugs (AEDs). Duration of epilepsy, before the commencement of AEDs was identified as an independent determinant of 2-year seizure control. Conclusion: Abnormal epigastric sensation and oroalimentary automatism were the most common clinical complaint. Duration epilepsy over 3 years or less was identified as an independent predictor of 2-year seizure control.

Owolabi, LF; Sale, S; Owolabi, SD

2014-01-01

384

Analise clinico laboratorial de 168 pacientes com galactorreia de diferentes condicoes etiologicas. (Clinical laboratorial analysis of 168 patients with galactorrhea from different etiologic conditions).  

National Technical Information Service (NTIS)

This paper evaluated the data of 168 patients with galactorrhea throught factorial analysis. This method consists, initially, of an intercorrelation analysis, which serves as a base for the determination of a number of factors, one of them, which could be...

I. H. F. Pacheco

1984-01-01

385

An analysis from clinico-epidemiological data of the principal adverse events from the COX2 selective NSAID, nimesulide, with particular reference to hepatic injury  

Microsoft Academic Search

The safety of the cyclo-oxygenase-2 (COX-2) selective NSAID, nimesulide, has been evaluated from information (a) in clinical\\u000a trials in osteoarthritis that have been performed in Europe as well as in earlier pilot studies that were performed in patients\\u000a with rheumatoid arthritis in the USA, and (b) in post-marketing studies (PMS) that have been performed by the manufacturer\\u000a since the introduction

K. D. Rainsford

1998-01-01

386

HIV-associated primary body-cavity-based lymphoma: clinico-biologic features in three patients diagnosed at the same institution.  

PubMed

Primary effusion lymphoma (PEL) is a recently individualized form of non-Hodgkin lymphoma (WHO classification) that mainly develops in HIV infected males, more frequently in homosexuals and advanced stages of the disease (total CD4+ lymphocyte count below 100-200/mL). Occasionally, it appears in others immunodepressive states (such as solid organs postransplant period) and even, although very rarelly, in immunocompetents patients. From a pathogenetic point of view, PEL has been related to Kaposi's sarcoma-associated herpes virus (also named human herpesvirus 8) and to the clinical antecedent of Kaposís sarcoma. Relative unfrequency of this disease, the absence of wide casuistics allowing a better characterization, and its unfavorable outcome, support the need of a deeper knowledge. We present here the clinical-biological findings of three patients that were diagnosed of pleural PEL in our institution in the last two years. PMID:15109285

Rodríguez Salazar, M J; Raya Sánchez, J M; Rodríguez Sánchez, R; Alonso Socas, M M; Brito Barroso, M L; Hernández Nieto, L

2004-04-01

387

Clinical progression in Charcot–Marie-Tooth disease type 1A duplication: clinico-electrophysiological and MRI longitudinal study of a family  

Microsoft Academic Search

Long-term follow-up studies in Charcot–Marie-Tooth disease type 1 duplication (CMT1A) are scanty. Here we describe a longitudinal\\u000a study in a CMT1A pedigree. Our CMT1A pedigree comprised 11 examined patients, ages between 13 and 83 (median, 36) years, serially\\u000a evaluated for up to 26 years. In all 11 patients we carried out electrophysiological evaluation, and in three of them magnetic\\u000a resonance imaging

José Berciano; Elena Gallardo; Antonio García; César Ramón; Jon Infante; Onofre Combarros

2010-01-01

388

Endocrine tumors of the duodenum and upper jejunum. A study of 33 cases with clinico-pathological characteristics and hormone content.  

PubMed

Thirty duodenal and three upper-jejunal endocrine tumors are reported. Clinical manifestations included: a) the Zollinger-Ellison syndrome (10 cases); b) peptic ulcer disease in which hypergastrinemia was not documented (3 cases); c) cholestasis or cholelithiasis (4 cases); d) abdominal pain (4 cases); e) gastro-intestinal bleeding (1 case); f) celiac sprue (1 case). Ten further tumors were discovered incidentally, at autopsy or in pathological specimens after gastrectomy or duodenopan-createctomy. Histological pattern was trabecular in 19 cases, insular in 2 and mixed in ten cases. Two cases were typical ganglioneuromatous paragangliomas. All tumors were examined immunohistochemically. Twelve tumors contained gastrin, four somatostatin, six both of these peptides, one serotonin, two both gastrin and serotonin, and two tumors contained gastrin, serotonin and somatostatin. Ganglioneuromatous paragangliomas combined somatostatin and/or pancreatic polypeptide containing endocrine cells with protein-S100-positive Schwann cells. In four tumors no peptide or amine was demonstrated. Gastrin cell tumors (63.6% of our cases), both functionally active (gastrinomas) and clinically silent, predominated in the proximal duodenum, while somatostatin cell tumors (15.1%) and paragangliomas were mostly found in the periampullary region. Two tumors were classified as malignant on the basis of lymph node metastases, and both were jejunal gastrinomas associated with Zollinger-Ellison syndrome. Two somatostatin cell tumors had manifestations of von Recklinghausen's disease. PMID:2160422

Capella, C; Riva, C; Rindi, G; Usellini, L; Chiaravalli, A; Solcia, E

1990-04-01

389

Pauci-immune necrotizing crescentic glomerulonephritis with crescentic and full moon extracapillary proliferation: clinico-pathologic correlation and follow-up study.  

PubMed

The prognostic value of the type and extent of extracapillary proliferation (ECP) in pauci-immune necrotizing crescentic glomerulonephitis (PIGN) was evaluated in this study. In 141 PIGN cases, all glomeruli with ECP were grouped according to type (cellular, fibrocellular and fibrous) and extent of the lesions in Bowman's space; (segmental, semicircumferential and circumferential, which might be termed full moon-FM). Cases with cellular and fibrous lesions involving ? 50% of glomeruli with ECP were classified as cellular and fibrous groups, respectively, while the remaining cases were classified as fibrocellular. Cases with segmental and circumferential (FM glomerulus) lesions involving ? 50% of glomeruli with ECP were classified as ECPI and ECPIII (FM) groups, respectively, while the rest were classified as ECPII. All the cases were classified according to Berden et al. Significant results were only nearly obtained for the FM group, including the need for dialysis. The Cox regression model revealed a 2.6-fold risk for FM cases regarding dialysis requirement. We propose that the percentage of FM glomeruli should be noted in the pathology report, and cases with more than 50% of FM glomeruli (FM group) should be identified in the group with increased risk of dialysis requirement. Our series also suggests that classification according to Berden et al. is of clinical relevance. PMID:23246377

Unlu, Mehtat; Kiremitci, Saba; Ensari, Arzu; Ozluk, Yasemin; Kilicaslan, Isin; Ozdemir, Binnaz Handan; Ates, Deniz; Ertoy Baydar, Dilek; Gonul, Ipek Isik; Memis, Leyla; Sarsik, Banu; Sen, Sait; Akkaya, Bahar; Orhan, Diclehan; Gonlusen, Gulfiliz; Ellidokuz, Hulya; Ada, Sibel; Cavdar, Caner; Akagun, Tulin; Kamali, Sevil; Aksu, Kenan; Yazisiz, Veli; Paydas, Saime; Soylu, Alper; Sarioglu, Sulen

2013-02-15

390

Clinico-Immunochemical Studies on Airborne Areca catechu L. Pollen, a Probable Risk Factor in Emergency Asthma Hospitalization from Eastern India  

Microsoft Academic Search

Background: The pollen grain of the Areca catechu L. tree is airborne and allergenic. This study aimed to know the role of this pollen as a source of aeroallergen with effect on emergency asthma hospitalization, to isolate its important allergic fraction and to check its cross-reaction with betel nut. Methods:Areca pollen was monitored with a Burkard sampler. Determination of allergenic

Pampa Chakraborty; Jyotshna Mandal; Eva Sarkar; Indrani Chowdhury; Swati Gupta-Bhattacharya

2009-01-01

391

[Intestinal trematodiases (metagonimiasis, nanophyetiasis): clinico-parasitological research and the first trial of using Azinox in a focus of the lower Amur River valley].  

PubMed

A focus of metagonimiasis and nanophyetiasis is described with the average human prevalence of 66.7 and 4.2%, respectively and low intensity of invasions (less than 100 eggs per 1 g). Metagonimiasis and nanophyetiasis are clinically expressed as chronic enterocolitis. A high effect of a single dose 10 mg/kg of azinox against metagonimiasis (98%) and nanophyetiasis (100%) was shown. The treatment course was proved to be useful in the foci of the Amur basin. PMID:1435530

Bronshte?n, A M; Korablev, V N; Iarotski?, L S

1992-01-01

392

[The clinico-hemodynamic effects of the activator of the GABA-ergic stress-limiting system sodium valproate (acediprol) and etatsizin in patients with cardiac arrhythmias].  

PubMed

Hemodynamic and antiarrhythmic effects of acediprol and ethacizine were examined in 51 patients with premature ventricular contraction concurrent with neurocirculatory dystonia and coronary heart disease. It was ascertained that acediprol exerted a positive inotropic action and ethacizine lowered myocardial contractility. Acediprol therapy prevents or attenuates the hypokinetic and arrhythmogenic effects of stimulated stress in patients with ischemic and non-ischemic arrhythmias. The preventive antiarrhythmic effect of acediprol is the most pronounced in patients with neurocirculatory dystonia. Ethacizine fails to improve hemodynamic supply of the stress test and enhances stress-related hypodynamia in some patients. PMID:1283180

Skibitski?, V V; Meerson, F Z; Petrova, T R; Meliukhova, N E

1992-07-01

393

Guided ion-beam studies of the kinetic-energy-dependent reactions of Co(n)+ (n = 2-16) with D2: cobalt cluster-deuteride bond energies.  

PubMed

The kinetic-energy-dependent cross sections for the reactions of Co(n)+ (n = 2-16) with D2 are measured as a function of kinetic energy over a range of 0-8 eV in a guided ion-beam tandem mass spectrometer. The observed products are Co(n) D+ for all clusters and Co(n)D2+ for n = 4,5,9-16. Reactions for the formation of Co(n)D+ (n = 2-16) and Co9D2+ are observed to exhibit thresholds, whereas cross sections for the formation of Co(n)D2+ (n = 4,5,10-16) exhibit exothermic reaction behavior. The Co(n)+-D bond energies as a function of cluster size are derived from the threshold analysis of the kinetic-energy dependence of the endothermic reactions and are compared to previously determined metal-metal bond energies, D0(Co(n)+-Co). The bond energies of Co(n)+-D generally increase as the cluster size increases, and roughly parallel those for Co(n)+-Co for clusters n > or = 4. These trends are explained in terms of electronic and geometric structures for the Co(n)+ clusters. The bond energies of Co(n)+-D for larger clusters (n > or = 10) are found to be very close to the value for chemisorption of atomic hydrogen on bulk-phase cobalt. The rate constants for D2 chemisorption on the cationic clusters are compared with the results from previous work on cationic and neutral cobalt clusters. PMID:16161586

Liu, Fuyi; Armentrout, P B

2005-05-15

394

EFECTO DE LA SINCRONIZACIÓN DEL ESTRO CON PROSTAGLANDINA-f2 VS CIDR + 500 UI DE eCG EN OVEJAS BERGAMACIA DURANTE EL INICIO DE LA FASE LUTEAL Effect of Estrus Synchronization with Prostaglandins-F2 Vs CIDR + 500 IU of eCG in Bergamacia Ewes During Early Luteal Phase  

Microsoft Academic Search

An experiment was conducted to investigate the effects of es- trous synchronization with PGF CIDR + 500 IU of eCG on interval to estrus, ovulation and steroidal hormones plasma concentrations during early luteal phase in sheep. Fourteen ewes were treated, distributed in two groups: Group 1 (Con- trol), synchronized with two injections of prostaglandin-F (PG), given 9 days apart, and

Luis Fernando Uribe-Velásquez; María Inés; Lênz Souza; Ana María; Loaiza Echeverri

395

Revision curricular a partir de un analisis comparativo de las discrepancias en los curriculos de una escuela de optometria en Puerto Rico con las competencias requeridas para las agencias de revalida y acreditacion 2004  

NASA Astrophysics Data System (ADS)

El proposito de esta investigacion, un estudio cualitativo de caso, fue comparar y contrastar el curriculo vigente de la Escuela de Optometria de la UIAPR con las competencias y estandares requeridos por las agencias de acreditacion y de revalida. Con este proposito, decidimos realizar una revision y un analisis de documentos: el prontuario de cada uno de los cursos de los curriculos implantados en el 1993 y en el 2001; las competencias y estandares establecidos por las agencias de revalida y de acreditacion; y las estadisticas en las que se analiza el porcentaje de estudiantes que aprueban cada una de las partes de los examenes de revalida entre el 1998 al 2003. Se realizaron entrevistas dirigidas para dar apoyo y complementar la revision y el analisis de estos documentos. Los participantes de las entrevistas fueron tres estudiantes de la clase de optometria del 2004 (ultima clase del curriculo del 1993); tres estudiantes de la clase de optometria del 2005 (primera clase graduanda del curriculo vigente) y tres profesores y/o directores de los Departamentos de Ciencias Basicas, Ciencias Clinicas y Cuidado al Paciente. Esta investigacion se enmarco en el modelo de evaluacion curricular de discrepancia de Malcolm Provus y en el modelo de desarrollo basado en competencias. Uno de los hallazgos mas importantes del estudio es que los cambios que se implantaron al curriculo del 2001 no han logrado que los estudiantes mejoren su ejecucion en los examenes de revalida. Por otro lado, se encontro que el curriculo vigente atiende completamente los estandares de la practica de Optometria, pero no las competencias. Esta informacion fue validada mediante el uso de una tabla de cotejo para el analisis de los cursos y de la informacion obtenida de las entrevistas. El estudio determina y concluye que existen discrepancias entre los prontuarios de los cursos del curriculo y las competencias requeridas por la agencia de revalida. Segundo, que el Departamento de Ciencias Basicas es el que presenta mas deficiencias en el desarrollo de las competencias. El investigador recomienda disenar e implantar un curriculo basado en competencias y proveer formacion en didactica y procesos de aprendizaje a los profesores.

Rivera Pacheco, Andres

396

Communicating Genetic Risk: Pros, Cons, and Counsel  

Microsoft Academic Search

Shortly before his death in 1995, Kenneth B. Schwartz, a cancer patient at Massachusetts General Hospital (MGH), founded The Kenneth B. Schwartz Center at MGH. The Schwartz Center is a non-profit organization dedicated to supporting and advancing com- passionate health care delivery, which provides hope to the patient, support to caregivers, and encourages the healing process. The center sponsors the

RICHARD T. P ENSON; MICHAEL V. S EIDEN; KRISTEN M. SHANNON; MARCIE L. LUBRATOVICH; MARIA ROCHE; BRUCE A. CHABNER; THOMAS J. LYNCH; Schwartz Center Rounds

397

Hester Prynne as Role Model: Pro & Con.  

ERIC Educational Resources Information Center

McWalters denies DeSalvo's previous claim (see EJ 209 302) that "The Scarlet Letter" harms students through its message of repressed sexuality; he suggests that the book does not condemn sexuality. DeSalvo replies that "The Scarlet Letter" is presented to students in a harmful way; she again calls for the use of literature that celebrates…

McWalters, John B.; DeSalvo, Louise

1980-01-01

398

The pros and cons of phytoestrogens  

PubMed Central

Phytoestrogens are plant derived compounds found in a wide variety of foods, most notably soy. A litany of health benefits including a lowered risk of osteoporosis, heart disease, breast cancer, and menopausal symptoms, are frequently attributed to phytoestrogens but many are also considered endocrine disruptors, indicating that they have the potential to cause adverse health effects as well. Consequently, the question of whether or not phytoestrogens are beneficial or harmful to human health remains unresolved. The answer is likely complex and may depend on age, health status, and even the presence or absence of specific gut microflora. Clarity on this issue is needed because global consumption is rapidly increasing. Phytoestrogens are present in numerous dietary supplements and widely marketed as a natural alternative to estrogen replacement therapy. Soy infant formula now constitutes up to a third of the US market, and soy protein is now added to many processed foods. As weak estrogen agonists/antagonists with molecular and cellular properties similar to synthetic endocrine disruptors such as Bisphenol A (BPA), the phytoestrogens provide a useful model to comprehensively investigate the biological impact of endocrine disruptors in general. This review weighs the evidence for and against the purported health benefits and adverse effects of phytoestrogens.

Patisaul, Heather B.; Jefferson, Wendy

2011-01-01

399

How they put the “con” in consulting  

Microsoft Academic Search

Takes a cynical but realistic look at some of the harsher realities of management consulting. Management consultants are experts at making a good impression and at selling their own services. However, this expertise is not always matched by the same level of technical skill. All too often, management consultants make suggestion for the sake of being seen to do something.

Brian Bloch

1999-01-01

400

Incentives for organ donation: pros and cons.  

PubMed

Altruism still remains the main principle of organ donation worldwide. However, since the current practices has not met the demand for organs, new strategies should be found to encourage organ donation. Implementation of financial incentives in transplantation is a matter of debate among experts in the fields of transplantation, ethics, law, and economics. It should be acknowledged that donors incur many expenses while participating in the transplant process, which seems unfair. Various forms of incentives have been suggested and are currently used worldwide. This article describes current attitudes toward incentives for in transplantation used in different countries, arguing in favor as well as against them. PMID:22841275

Chkhotua, A

2012-01-01

401

Roofing with Urethane: Pro and Con.  

ERIC Educational Resources Information Center

Gerald Scott's favorable evaluation of the foamed polyurethane roofing system is based on experiences with 55 buildings at Texas A & M. Michael Kinzer, an architect at Colorado State University, disagrees and claims that the system is difficult to install and maintain, and the cost prohibitive. (MLF)

Kinzer, Michael; Scott, Gerald P.E.

1981-01-01

402

Los premiados con el nobel de economía, \\  

Microsoft Academic Search

Como docente en economía quiero hacer un breve y atrevido comentario. a raíz del otorgamiento del Premio Nobel de Economía 1993 a los profesores Douglas C. North y Robert W. Fogel de las Universidades de Washington (Sant Louis) y Chicago respectivamente, por sus investigaciones en el área de la Historia Económica. La primera opinión expresada por el profesor Douglas al

Hugo Silva S

1994-01-01

403

Una “discussione in rete” con Stanley Wilder  

Microsoft Academic Search

On 4th January 2005 the USA Information Literacy community is shocked by the Stanley Wilder's article “Information Literacy Makes all the Wrong Assumptions” published on The Chronicle of Higher Education. The article strongly criticises against Information Literacy and academic libraries. As a reaction, an intense debate immediately arises within the USA Information Literacy community through the ILI-L discussion list. The

Basile Carla

2005-01-01

404

Trustless Grid Computing in ConCert  

Microsoft Academic Search

We believe that fundamental to the establishment of a grid computing framework where all (not just large organizations) are able to eectiv ely tap into the resources available on the global network is the establishment of trust between grid application developers and resource donors. Resource donors must be able to trust that their security, safety, and privacy policies will be

Bor-yuh Evan Chang; Karl Crary; Margaret Delap; Robert Harper; Jason Liszka; Tom Murphy Vii; Frank Pfenning

2002-01-01

405

Functional Grid Programming with ConCert  

Microsoft Academic Search

Grid computing has become increasingly popular with the growth of the Internet, especially in large-scale scientic computation. Computational Grids are characterized by their scale, their heterogeneity, and their unreliability, mak- ing the creation of Grid software quite a challenge. Security concerns make the deployment of Grid infrastructure simi- larly daunting. We argue that functional programming techniques, both well-known and new,

Tom Murphy VII

2004-01-01

406

ML grid programming with ConCert  

Microsoft Academic Search

Grid computing has become increasingly popular with the growth of the Internet, especially in large-scale scientific computation. Computational Grids are characterized by their scale, their hetero- geneity, and their unreliability, making the creation of Grid soft- ware quite a challenge. Security concerns make the deployment of Grid infrastructure similarly daunting. We argue that functional programming techniques, both well- known and

Tom Murphy Vii

2006-01-01

407

Pros, Cons to Dissolving Lung Clots  

MedlinePLUS

... busting drugs, said Giri, an assistant professor of clinical medicine at the University of Pennsylvania in Philadelphia. A ... Giri, M.D., M.P.H., assistant professor, clinical medicine, University of Pennsylvania, Philadelphia; Joshua Beckman, M.D., ...

408

Pros and Cons of Biological Control  

Microsoft Academic Search

This chapter will briefly review the positive aspects of biological control and will highlight a few examples. It will further\\u000a review negative aspects of biological control introductions. One of the examples where biological control led to detrimental\\u000a environmental effects was the introduction of the ladybeetle Harmonia axyridis, and this case will be outlined in more detail. This example will also

Dirk Babendreier

409

MADURACIÓN ÓSEA EN NIÑOS Y ADOLESCENTES CON  

Microsoft Academic Search

Objective: To evaluate bone maturation in obese children and to compare the findings from the Venezuelan atlas of bone maturation and the international atlas of Greulich.Pyle. Methods: The data of 30 obese children aged between 1 and 12 years, including weight, height, sex, chronological age, bone age and socioeconomic level were collected, in a cross-sectional study. To evaluate the bone

OBESIDAD Nolis Camacho-Camargo; Janett Velásquez-Guillén; Mariela Paoli-Valeri; Rosanna Cicchetti-Uzcátegui; Jorge Alvarado-Colmenares; Justo Santiago-Peña

410

McLuhan: Pro and Con.  

ERIC Educational Resources Information Center

Twenty-one critical essays on the ideas and works of Marshall McLuhan are offered in this review. In the course of the essays, McLuhan is characterized alternately as a genius, an extrapolator, and an oracle; a defender of the choice of choicelessness; a generalizer who rearranges, misinterprets, and misreads the facts to support his theses; an…

Rosenthal, Raymond, Ed.

411

The Big Con: China's Historical Sabotage  

ERIC Educational Resources Information Center

On June 4, 1989, the Chinese military, under orders from the highest levels of government, violently crushed peaceful civilian demonstrations in Beijing, most symbolically in and around Tiananmen Square. In the end, the Chinese government claimed that the death toll was approximately 200, but the Chinese Red Cross reported 2,000 to 3,000 deaths.…

Terrence Cheng

2009-01-01

412

Catálogo de galaxias con núcleo doble  

NASA Astrophysics Data System (ADS)

Through systematic inspection of the publications in extragalactic astronomy and galaxy catalogs, we compiled a first list of spiral galaxies with double or multiple nucleus, confirmed and candidates (about 150 objects). This list includes, in its preliminar form, basic data on each object (Names, Coordinates, Redshift, Abs.Mag.B, Major and Minor Axes, Nuclei Separation, IR Properties, Comments, etc.) and for nuclei with apparent separations larger than 1'', it seems complete up to z = 0.0015. This allows us to analize the possible correlations between the geometric and photometric parameters of the double nuclei and the host galaxies, some of which are important, e.g.: nuclei separation vs. absolute magnitude and vs. host galaxy diameter; star formation rate vs. nuclei separation. We also find common global infrared an optical photometric properties that are beeing analized in order to check the validity of some models of galaxies captures and mergers. A subsample of southern objects included in this catalog is beeing observed at Bosque Alegre Astrophysical Station and, up to date, we have performed BVRI photometry and spectroscopy of twelve double or multiple nuclei galaxies.

Gimeno, G.; Díaz, R. J.; Carranza, G.

413

The Pros and Cons of Butterfly Barbells  

Microsoft Academic Search

During recent years butterfly barbells have been used actively as investment strategies. Such barbells are constructed in order to obtain a yield pick-up and at the same time to be risk neutral against a change in the slope of the yield curve and\\/or a parallel shift in the yield curve. However, empirically the yield curve may change in an unanticipated

Michael Christensen

2002-01-01

414

[Legalization of drugs--pro and con].  

PubMed

This article deals with various opinions and assertions regarding drug legalization. Societal and clinical implication regarding the effect of decrease or increase in the use of psyhoactive substances, on public health, violence and criminal activities have been pointed out. The relation between legal and illegal drugs has been considered. Special attention has been paid to arguments on legalization and decriminalization of marihuana and possible consequences on the risk group-children and adolescents. Experiences from USA and some European countries have been presented. Having in mind the specific situation in BiH, the author of article gives her own view and suggest the introduction of harm reduction strategy into BiH drug policy, without changing the legal drug status. PMID:11769432

Marjanovi?-Cengi?, S

2001-01-01

415

[Centralization in obstetrics: pros and cons].  

PubMed

Possible advantages and disadvantages of a general centralization of German obstetric facilities are analysed in the study. The need for centralization of risk cases, especially premature births (regionalization) is pointed out. Centralization appears appropriate, since every fifth maternity unit in Germany (19.78%) has 300 or fewer deliveries per year. This one fifth of perinatal clinics accounts for 6.3% of all deliveries (N = 49450). There are appreciable differences between the old and new federal states (Bundesländer): in the recently acceded federal states, 48.7% of all perinatal clinics have deliveries of 300 and less per year. This group of perinatal clinics accounts for 29% of all deliveries in the new federal states. We have carried out a survey of the mother's attitude to centralization: out of 416 patients in the Detmold women's hospital whose mean age was 29.0 +/- 4.2 years, 90.4% were not in favor of general centralization of obstetrics. 43% were also against a centralization of risk cases (regionalization). 75% of the women surveyed objected to centralized obstetrics because of the 'possible absence of the family', the 'possible absence of students and trainees' (44.9%), the 'unfamiliarity with staff and premises' (41.8%) and 'fear of anonymity' (44.5%). The majority of all women (84.1%) did not want to have a drive more than 20 km to an obstetrics center. Fear of 'delivery in a taxi'(78.6%), the 'fear that the husband will come too late to the delivery' (65.4%) and that the 'overall course of the delivery might not be adequate for reasons of time'. The presence of a pediatrics department in conjunction with the perinatal clinic was rated very positively (93%). It is concluded from the data and further juridical considerations that centralization of risk cases (regionalization) is indispensable in the near future and that somewhat more further into the future decentralization should be carried out by closing obstetrics departments with substantially less than 350 deliveries per year. Attention is drawn to some consequences of such a structural reform which will probably have to be initiated by the German Association of Gynecologists and Obstetricians. PMID:8681127

Roemer, V M; Ramb, S

1996-01-01

416

The Pros and Cons of Petroleum Agreements.  

ERIC Educational Resources Information Center

A mineral agreements expert discusses the options open to tribes, from the most standard lease form to arrangements as yet untried by Indian Nations. Discussion covers 18 basic provisions for inclusion in agreements, tax considerations, and basic forms of petroleum agreements (leases, joint ventures, production sharing, and service contracts).…

Lipton, Charles J.

1980-01-01

417

Mujer con astenia: panarteritis nodosa microvascular  

Microsoft Academic Search

Según la Sociedad Española de Reumatología (SER) la incidencia de Panarteritis nodosa (PAN) microscópica es de 2 casos por millón de habitantes. Si hacemos cálculos en el total de la población española serían 92 casos. Es una patología no muy frecuente ni conocida. Presenta inicialmente síntomas generales inespecíficos (60-70 % de los casos), como fiebre, malestar, astenia, anorexia, pérdida de

Eva Pablos Herrero; Victòria Sabaté Cintas; Anna Fabra Noguera

2010-01-01

418

SPOTLIGHT: RON HALLDORSON, con't  

Microsoft Academic Search

band would play for shows and dances. Although Jack and the other band members promised to take good care of young Ron, the under-age musician admits to hearing lots of dirty jokes, which he thoroughly enjoyed With his father, being a fine musician himself, playing old time fiddle music, Ron was fortunate to be exposed to all the talent of

JAMES LANES

419

I-ConFIRM Steering Committee  

Cancer.gov

Skip to Main Content at the National Institutes of Health | www.cancer.gov Epidemiology and Genomics Research In NCI's Division of Cancer Control and Population Sciences Menu Search EGRP Site: EGRP Home About the Program Mission & Vision Organizational

420

Nanoparticles: Health Effects--Pros and Cons  

PubMed Central

With the advent of nanotechnology, the prospects for using engineered nanomaterials with diameters of < 100 nm in industrial applications, medical imaging, disease diagnoses, drug delivery, cancer treatment, gene therapy, and other areas have progressed rapidly. The potential for nanoparticles (NPs) in these areas is infinite, with novel new applications constantly being explored. The possible toxic health effects of these NPs associated with human exposure are unknown. Many fine particles generally considered “nuisance dusts” are likely to acquire unique surface properties when engineered to nanosize and may exhibit toxic biological effects. Consequently, the nuisance dust may be transported to distant sites and could induce adverse health effects. In addition the beneficial uses of NPs in drug delivery, cancer treatment, and gene therapy may cause unintentional human exposure. Because of our lack of knowledge about the health effects associated with NP exposure, we have an ethical duty to take precautionary measures regarding their use. In this review we highlight the possible toxic human health effects that can result from exposure to ultrafine particles (UFPs) generated by anthropogenic activities and their cardiopulmonary outcomes. The comparability of engineered NPs to UFPs suggests that the human health effects are likely to be similar. Therefore, it is prudent to elucidate their toxicologic effect to minimize occupational and environmental exposure. Highlighting the human health outcomes caused by UFPs is not intended to give a lesser importance to either the unprecedented technologic and industrial rewards of the nanotechnology or their beneficial human uses.

Gwinn, Maureen R.; Vallyathan, Val