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

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

"This neuro-immune-endocrine cooperation synergistically promotes increased production of renin to maintain blood pressure homeostasis, but, on the other hand, severe arteriolar hypertrophy reduces the blood filtration function of the kidney."

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

Describe how renin promotes release of ADH and aldosterone.

From Textbooks • Jun. 9, 2022

The kidneys produce renin, which affects aldosterone secretion by the adrenal cortex.

From Textbooks • Jun. 9, 2022