Selectivity between Sodium, Calcium and Potassium Ions in Bacterial Sodium and Calcium Channels
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چکیده
منابع مشابه
Evaluating the Serum Levels of Calcium, Chloride, Potassium and Sodium in the Stroke Patients
Backgrounds and Aims: Stroke incidence rate has increased during the past 2 decades. The question of whether calcium, chloride, potassium, sodium levels are associated with stroke has remained controversial. The present study aimed to evaluate the serum levels of potassium, sodium, calcium, and chloride within stroke patients. Materials and Methods: The study participants consisted of 5...
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Background: Due to difficulty of obtaining a 24h urine (especially in children), a random urine calcium sample is recommended to detect of hypercalciuria. However, recent studies have shown that the urinary calcium/creatinine ratio varies with age and geographic areas. So, the aim of this study was determining the normal value of urinary calcium to creatinine ratio in healthy adolescent’s...
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It is universally believed that the removal of external sodium ions is without effect on calcium current. We now report that in enzymatically isolated guinea pig ventricular cells, the replacement of external sodium ions with certain other cations causes a 3- to 6-fold increase in peak L-type calcium current. The increase in current is reversibly blocked by L-type calcium-channel antagonists, n...
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Biol. 82:559-564. 6. Hiwatashi, K., N. Haga, and M. Takahashi. 1980. Restoration of membrane excitability in a behavioral mutant of Paramecium caudatum during conjugation and by microinsection wild-type cytoplasm. J. Cell Biol. 84:476-480. 7. Haga, N., Y. Saimi, M. Takahashi, and C. Kung. 1983. Intraand inter-specific complementation of membrane-inexcitable mutants of Paramecium. J. Cell Biol. ...
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We examined the effects of changes in the extracellular concentrations of Na, K, and Ca ions on the steady state pressure-discharge relationships of individual baroreceptors, using an in vitro aortic arch-aortic nerve preparation. We determined the concentration-response relationships for each of the three cations, as well as for the combined effects of changes in Ca-K and Ca*-Na. The concentra...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2013
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2012.11.772