A Specific Role for Saline or the Sodium Ion in the Regulation of Renin and Aldosterone Secretion

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A Specific Role for Saline or the Sodium Ion in the Regulation of Renin and Aldosterone Secretion

Publication Date
Apr 01, 1974
Source
PMC
Keywords
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Abstract

It is well established that in normal man the renin-angiotensin-aldosterone system is responsive to changes in volume. The present study was performed to determine whether sodium has an action apart from volume in the regulation of the secretion of renin and aldosterone. Acute volume expansion was induced either by saline, dextran, or glucose infusion in supine, normal subjects in balance on a 10 meq sodium/100 meq potassium diet. Plasma renin activity (PRA), angiotensin II (A II), aldosterone (PA), cortisol, serum sodium, and potassium were measured every 10 min for the first 30 min and then at 1, 2, 4, 6, and 8 h.

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