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Excitation of Supraoptic Neurosecretory Cells by Angiotensin II

Abstract

ANGIOTENSIN II, a circulating peptide which regulates electrolyte balance by controlling the adrenal release of aldosterone, may also act on the central nervous system. The reported central effects include elevations of blood pressure1–6, drinking behaviour7–11, adrenocorticotrophic hormone release12,13 and antidiuretic hormone (ADH) release5,14,15. The evidence for ADH release from the supraoptico-neurohypophysial system is based on studies involving the parenteral and intraventricular administration of angiotensin II. These routes of administration make an exact localization of the releasing action impossible and therefore we have attempted to locate the site by applying angiotensin II directly to individual supraoptic neurosecretory cells. We now report that angiotensin II increases the discharge rate of these and other neurones in the supraoptic nucleus.

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NICOLL, R., BARKER, J. Excitation of Supraoptic Neurosecretory Cells by Angiotensin II. Nature New Biology 233, 172–174 (1971). https://doi.org/10.1038/newbio233172a0

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