renin

[ ree-nin ]

noun

, Biochemistry.

1. a proteolytic enzyme secreted by the kidneys that is involved in the release of angiotensin.

renin

/ ˈriːnɪn /

noun

1. a proteolytic enzyme secreted by the kidneys, which plays an important part in the maintenance of blood pressure

renin

/ rē′nĭn,rĕn′ĭn /

1. A proteinase enzyme of high specificity that is released by the kidney and acts to raise blood pressure by activating angiotensin.
2. See also angiotensin

Word History and Origins

Origin of renin¹

First recorded in 1890–95; ren(i)- + -in ²

Word History and Origins

Origin of renin¹

C20: from reni- + -in

Example Sentences

Preliminary data from the Johns Hopkins team point to blood vessel stiffness and renin hormone levels in the blood as potential reasons for the lack of blood pressure variation in mice without the receptor.

From Science Daily

The researchers also measured two hormones that are affected by liquorice and that regulate fluid balance: renin and aldosterone.

From Science Daily

The disease can be detected by blood tests that measure the levels of aldosterone and renin, an enzyme made in the kidneys that helps control blood pressure, then calculating the ratio between the two.

From Washington Post

But in people with primary aldosteronism, aldosterone can be elevated even when renin is low.

From Salon

That receptor, triggered as the next surge of fatty acids arrives, keeps blood pressure from bottoming out by calling for renin to constrict the blood vessels.

From Scientific American