Lexic.us

Definition of Angiotensin

1. Noun. Any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels.

Definition of Angiotensin

1. Noun. (hormone) Any of several polypeptides that narrow blood vessels and thus regulate arterial pressure. ¹

¹ Source: wiktionary.com

Definition of Angiotensin

1. [n -S]

Medical Definition of Angiotensin

1. A family of oligopeptides ranging in size from angiotensin precursors with 14 amino acids to the active vasoconstrictor angiotensin II with 8 amino acids, or their analogs or derivatives. The amino acid content varies with the species and changes in that content produce antagonistic or inactive compounds. Angiotensinogen (renin substrate) is a 60 kD polypeptide released from the liver and cleaved in the circulation by renin to form the biologically inactive decapeptide angiotensin I. This is in turn cleaved to form active angiotensin II by Angiotensin-converting Enzyme (ACE). Angiotensin II causes contraction of vascular smooth muscle and thus raises blood pressure and stimulates aldosterone release from the adrenal glands. Angiotensin is finally broken down by angiotensinases. (12 Aug 2000)

Lexicographical Neighbors of Angiotensin

Literary usage of Angiotensin

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the Society for Experimental Biology and Medicine (1903)
"Superior mesenteric artery flow (SMAF) responses to angiotensin I and bradykinin ... angiotensin I responses were significantly reduced by the CEI, however, ..."

2. A Lifelong Passion: Nicholas and Alexandra: Their Own Story by Andrei Maylunas (2005)
"angiotensin II induced a weak secretion of both adrenaline and ... angiotensin II also increased inositol phosphate accumulation over the range 1 pM-10 ..."

3. Journal of the American Chemical Society by American Chemical Society (1879)
"The results which are presented in this communication demonstrate conclusively that the pressor and myotropic activities of angiotensin do not depend on the ..."

4. Novel Systems for the Study of Human Disease: From Basic Research to by OECD Staff, (Paris) Organisation for Economic Co-ope, SourceOECD (Online service) (1998)
"Serum angiotensin-converting enzyme activity levels increased approximately linear with copy number with males having higher activities than females. ..."

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