Thermochemical study of sodium and sodium-calcium amphibols
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چکیده
منابع مشابه
Effect of Calcium Lactate, Sodium Diacetate and Sodium Chloride Mix
This study was conducted to assess the effects of 0.5% Preservative Mixture (PM) containing calcium lactate (40%), sodium diacetate (40%) and sodium chloride (20%) on the microbiological, chemical and sensory quality of chicken meat nuggets stored at 4±2 C and under Modified Atmosphere Packaging o (MAP). There were two experimental groups of samples, namely control and PM-treated. The results s...
متن کاملCalcium, sodium, and the calcium paradox.
The effect of "sodium loading," of verapamil and of nifedipine on the gain in calcium and sodium, and on the loss of myoglobin, during the calcium paradox in adult rat hearts was examined. Raising cell sodium from 56.5 +/- 2.6 to 129.5 +/- 10.2 mumol sodium/gram dry weight did not alter the degree or rate of calcium gain or myoglobin release during calcium repletion after long periods (greater ...
متن کاملSodium-extruding and calcium-extruding sodium/calcium exchangers display similar calcium affinities.
Na+/Ca2+ exchange activities in purely inside-out and mixed inside-out and right-side-out fish enterocyte basolateral plasma membrane vesicle preparations display equal affinities for Ca2+, showing that only the intracellular Ca2+ transport site of the Na+/Ca2+ exchanger is detected in experiments on vesicle preparations with mixed orientation. Therefore, Ca2+ pump and Na+/Ca2+ exchange activit...
متن کاملCompetitive interactions of sodium and calcium with the sodium-calcium exchange system of cardiac sarcolemmal vesicles.
The initial velocity of Ca2+ uptake via the Na-Ca exchange system in cardiac sarcolemmal vesicles is competitively inhibited by extravesicular Na+. The Hill plots for multisite competitive inhibition are nonlinear, exhibiting a limiting slope of 1 at low Na+ concentrations (less than 20 mM) and 1.6-2.0 at higher concentrations. The Ki for Na+ is approximately 16 mM. Thus, the Ca2+ binding site ...
متن کاملSodium channel blockade reduces hypoxic sodium loading and sodium-dependent calcium loading.
BACKGROUND Studies have shown that the rise in intracellular ionized calcium, [Ca2+]i, in hypoxic myocardium is driven by an increase in sodium, [Na+]i, but the source of Na+ is not known. METHODS AND RESULTS Inhibitors of the voltage-gated Na+ channel were used to investigate the effect of Na+ channel blockade on hypoxic Na+ loading, Na(+)-dependent Ca2+ loading, and reoxygenation hypercontr...
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ژورنال
عنوان ژورنال: Геохимия
سال: 2019
ISSN: 0016-7525
DOI: 10.31857/s0016-7525645520-528