Angiotensin II- and Angiotensin III-Induced Aldosterone Release in vivo in the Rat

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Science  31 May 1974:
Vol. 184, Issue 4140, pp. 994-996
DOI: 10.1126/science.184.4140.994


The potential role of angiotensin II and its heptapeptide metabolite, des-aspartyl-angiotensin II, was studied in the conscious unanesthetized rat. Aldosterone release was induced by both peptides at physiologic doses (0.72 nanogram per minute). [I-Sarcosyl-8-alanyl]-angiotensin II (P-113 inhibited angiotensin II more effectively than des-aspartyl-angiotensin II (101 percent as compared to 82 percent). These results indicate that angiotensin controls aldosterone release in the rat and that des-aspartyl-angiotensin II (that is, angiotensin III) may be important in this sequence.

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