angiotensin

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Related to angiotensin I: angiotensin II

angiotensin

[‚an·jē·ə′ten·sən]
(biochemistry)
A decapeptide hormone that influences blood vessel constriction and aldosterone secretion by the adrenal cortex. Also known as hypertensin.
References in periodicals archive ?
Renin is an enzyme that catalyzes the formation of the hormone angiotensin I, which is transformed by the angiotensin converting enzyme (ACE) to angiotensin II, which acts on specific receptors to increase blood pressure and modulate long term processes such as arteriosclerosis and remodeling of heart and kidney.
Neither losartan nor its active metabolite inhibits ACE (kininase II, the enzyme that converts angiotensin I to angiotensin II and degrades bradykinin); nor do they bind to or block other hormone receptors or ion channels known to be important in cardiovascular regulation.
ACE does this by cutting off the last 2 amino acids of angiotensin I.

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