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  • Title: Effect of atrial natriuretic factor on the plasma aldosterone response to potassium infusion in rats--in vivo study.
    Author: Takagi M, Franco-Saenz R, Mulrow PJ.
    Journal: Life Sci; 1986 Jul 28; 39(4):359-64. PubMed ID: 2942746.
    Abstract:
    Previous in vitro studies have shown that atrial natriuretic factor inhibits the secretion of aldosterone stimulated by AII, ACTH, and potassium in adrenal cell suspensions. The present study investigated the effects of atriopeptin II on the plasma aldosterone response to a potassium infusion in conscious unrestrained rats in vivo. The infusion of potassium chloride solution increased plasma aldosterone level from 20.4 +/- 3.7 to 168.4 +/- 27.3 ng/dl. The simultaneous administration of atriopeptin II reduced the increase in plasma aldosterone level (16.0 +/- 2.1 to 63.3 +/- 10.4 ng/dl). There was no significant difference in the plasma renin activity, corticosterone, or serum potassium levels between the two groups. These results suggest that atriopeptin II may be important in the regulation of aldosterone secretion.
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