Adaptation to potassium
نویسندگان
چکیده
منابع مشابه
Potassium secretion by distal tubule after potassium adaptation.
AND GERHARD GIEBISCH. Potassium secretion by distal tubule after potassium adaptation. Am. J. Physiol. 22 l(2) : 437-448. 197 1 .-The renal contribution to the tolerance to acute loads of potassium conferred by a chronic high-K intake was examined in rats. Changes in sodium and potassium excretion following acute K infusion were observed in animals fed normal, high-K, low-Na, or low-K diets. Co...
متن کاملAdaptation of Bacillus subtilis to Life at Extreme Potassium Limitation
Potassium is the most abundant metal ion in every living cell. This ion is essential due to its requirement for the activity of the ribosome and many enzymes but also because of its role in buffering the negative charge of nucleic acids. As the external concentrations of potassium are usually low, efficient uptake and intracellular enrichment of the ion is necessary. The Gram-positive bacterium...
متن کاملRenal adaptation to potassium in the adrenalectomized rabbit. Role of distal tubular sodium-potassium adenosine triphosphatase.
Potassium secretion and sodium-potassium adenosine triphosphatase (Na-K-ATPase) activity in the distal nephron segments are known to be influenced by the dietary intake of K+. This has been attributed to a change in the plasma aldosterone level, which also influences K+ secretion and Na-K-ATPase activity in the distal nephron. To investigate whether or not dietary K+ can modulate Na-K-ATPase ac...
متن کاملOn the Adaptation in Potassium Excretion
tate (DOCA) and cortisol. Potassium excretion per nephron increased strikingly within 18 hr of contralateral nephrectomy and by 7 days, excretion rates were 600% of control values for the remnant kidney., More potassium was excreted in the first 5 hr after administration of a test dose of potassium by the remnant kidney alone in the postnephrectomy state than by both the remnant and intact kidn...
متن کاملAn extrarenal mechanism of potassium adaptation.
Rats fed a diet high in potassium for several days survive an acute load of potassium that is lethal to animals on a regular diet. Previous data suggested that this survival occurred because of enhanced kaluresis. Although increased urinary excretion may occur, the major mechanism of this potassium adaptation phenomenon has been found to be extrarenal. Despite nephrectomy just before study, rat...
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ژورنال
عنوان ژورنال: Kidney International
سال: 1977
ISSN: 0085-2538
DOI: 10.1038/ki.1977.64