Human Alpha Atrial Natriuretic Peptide Inhibits Angiotensin Stimulated Aldosterone Biosynthesis in Bovine Adrenal Glands

Summary

The behaviour of aldosterone output was evaluated in isolated and superfused bovine adrenal glands during super-fusion with human alpha atrial natriuretic peptide on its own or with angiotensin II or a antagonist dopaminergic drug: metoclopramide.

H α-ANP even in high concentrations did not reduce the basal amount of aldosterone released from bovine adrenal glands, nor did it modify aldosterone response to metoclopramide, but it partially inhibited aldosterone stimulation by angiotensin II. These data suggest that atrial natriuretic factor may affect sodium secretion through the modulation of aldosterone secretion.

Key-Words

H-Alpha-ANP - Aldosterone - Angiotensin II - Bovine Adrenal Glands