The effects of intracellular application of three compounds - QX314, N-ethylguanidine and N-octylguanidine - on the acetylcholine-activated ionic channels in chick myoballs were examined. Voltage-clamped myoballs were internally perfused using the suction-pipette technique. Changes in the internal ionic environment of myoballs were demonstrated by: (1) alteration of the reversal potential for both ...
PubMed Central
... Descriptors : *POTASSIUM COMPOUNDS, ALTERNATING CURRENT, BROMIDES, CRYSTALS, ELECTRICAL PROPERTIES, SPACE CHARGE. ...
DTIC Science & Technology
... The Select Committee has found no data suggesting that the use of sodium or potassium hydroxides, as currently practiced in food processing, is hazardous to ...
Center for Food Safety and Applied Nutrition (CFSAN)
Vol. 31 (2000) ACTA PHYSICA POLONICA B No 5 COMPARISON OF SINGLE CHANNEL POTASSIUM CURRENT recordings of potassium current through a big conductance locust potassium chan- nel (BK-channel) and a track- sion analysis. A similar dependence of potassium ...
E-print Network
The aim of the current study was to compare the pupil reaction to light in depressed patients and normal control subjects. Seven depressed patients with melancholic features according to DSM-IV criteria and 14 age- and gender-matched control subjects took part in the study. All were free of any medication for at least 2 weeks. All were aged between 25 and 50 years. An optical ...
PubMed
Methylpentynol, paraldehyde, amylobarbitone and procainamide blocked transmission through the cat superior cervical ganglion, and antagonized the ganglion-stimulating actions of acetylcholine and carbachol injected intra-arterially to the ganglion. Comparison with the effects of tetraethylammonium indicated that the impaired response to acetylcholine could not wholly account for the failure of ...
... Descriptors : *NERVE CELLS, *CHEMORECEPTORS, SODIUM, CHLORIDES, DOPAMINE, POTASSIUM, IONIC CURRENT ...
399 Potassium Currents in Developing Neurons ANGELES B. RIBERAa Department of Physiology, Colorado 80262, USA ABSTRACT: In Xenopus spinal neurons, delayed rectifier type voltage-dependent potassium suggested that the diverse population of neurons expressed a common potassium channel. Thus, recent efforts
Production of potassium nitrate, a fertilizer currently purchased by KSC for use ... Installation at the HMF for testing under actual operating conditions. ...
NASA Website
The influence of an external field on an ion current pattern in biological and synthetic systems was investigated. The patch clamp recordings of potassium current through a big conductance locust potassium channel (BK-channel) and a track-etched polyethylene terephthalate membrane were examined by the power ...
NASA Astrophysics Data System (ADS)
... COMPARTMENTS, METABOLISM, PLATINUM, CYANIDES, ELECTRIC CURRENT, PLEXIGLAS, METHYLENE BLUE, GLUCOSE, POTASSIUM ...
Kv7.1 (KCNQ1) channels are regulators of several physiological processes including vasodilatation, repolarization of cardiomyocytes, and control of secretory processes. A number of Kv7.1 pore mutants are sensitive to extracellular potassium. We hypothesized that extracellular potassium also modulates wild-type Kv7.1 channels. The Kv7.1 ...
