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

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

But long-term use can take a terrible toll on the kidney, causing scarring and other dramatic physical changes that shift the organ's focus from blood filtration to producing renin.

Read more on Science Daily

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.

Read more on Science Daily

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

Read more on 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.

Read more on Washington Post

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

Read more on Salon