renin

American  

[ree-nin] / ˈri nɪn /

noun

Biochemistry.

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

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renin British  

/ ˈriːnɪn /

noun

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

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renin Scientific  

/ 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

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Etymology

Origin of renin

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

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.

From Science Daily • Nov. 21, 2024

They start to secrete renin and substances that trigger other changes: New nerves grow like weeds; immature smooth muscle cells build up; scars form around the tiny blood vessels, called arterioles; and inflammatory cells infiltrate.

From Science Daily • Nov. 21, 2024

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

From Science Daily • Mar. 14, 2024

Different regions of the nephrons have specialized cells that respond to chemical messengers and hormones like epinephrine, renin, aldosterone, ADH, and ANP.

From Textbooks • Jun. 9, 2022

They adrenal cortex produces renin, which affects aldosterone secretion by the kidneys.

From Textbooks • Jun. 9, 2022