
1) Enzyme formed in kidneys 2) Hormone of the kidney 3) Kidney enzyme 4) Kidney secretion 5) Peptidase 6) Proteinase 7) Proteolytic enzyme 
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https://www.crosswordclues.com/clue/renin

 Renin (n {respell|REE|nin}), also known as an angiotensinogenase, is an enzyme that participates in the body`s renin-angiotensin system (RAS)—also known as the renin-angiotensin-aldosterone axis—that mediates extracellular volume (i.e., that of the blood plasma, lymph and interstitial fluid), and arterial vasoconstriction. Thus, it regulates ....
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http://en.wikipedia.org/wiki/Renin

an enzyme of the hydrolase class that catalyses cleavage of the leucine-leucine bond in angiotensin to generate angiotensin. 1. The enzyme is synthesized as inactive prorenin in the kidney and released into the blood in the active form in response to various metabolic stimuli. Not to be confused with rennin (chymosin).
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http://users.ugent.be/~rvdstich/eugloss/DIC/dictio76.html

enzyme secreted by the kidney (and also, possibly, by the placenta) that breaks down protein and produces a rise in blood pressure. In the blood, ... [8 related articles]
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http://www.britannica.com/eb/a-z/r/33

A hormone secreted by the kidneys. Renin interacts with aldosterone (a hormone produced by the adrenal glands) and several other substances to help regulate sodium and potassium in the blood, fluid levels in the body, and blood pressure.
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http://www.daviddarling.info/encyclopedia/R/renin.html

<enzyme> An enzyme of the hydrolase class that catalyses cleavage of the leucine leucine bond in angiotensin to generate angiotensin. 1. ... The enzyme is synthesised as inactive prorenin in the kidney and released into the blood in the active form in response to various metabolic stimuli. Not to be confused with rennin (chymosin). ... (25 Ju...
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http://www.encyclo.co.uk/local/20973

(re´nin) a proteolytic enzyme synthesized, stored, and secreted by the juxtaglomerular cells of the kidney; it plays a role in regulation of blood pressure by catalyzing the conversion of the plasma glycoprotein angiotensinogen to angiotensin I, which is later converted to the potent vasoconstrictorangiotensin II. See also re...
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http://www.encyclo.co.uk/local/21001

An acid protease released from the walls of afferent arterioles in the kidney when blood flow is reduced, plasma sodium levels drop, or plasma volume diminishes. Catalyses splitting of angiotensin I from angiotensinogen, an a2-globulin of plasma.
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Type: Term Pronunciation: rē′nin Definitions: 1. A term originally applied to a pressor substance obtained from rabbits' kidneys, now an enzyme that acts on angiotensinogen to produce angiotensin I. Synonyms: angiotensinogenase
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http://www.medilexicon.com/medicaldictionary.php?t=77403

[
n] - a proteolytic enzyme secreted by the kidneys
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http://www.webdictionary.co.uk/definition.php?query=renin

an enzyme that plays a role in increasing a low blood pressure 
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https://www.encyclo.co.uk/local/20875
 noun
 noun a proteolytic enzyme secreted by the kidneys; catalyzes the formation of angiotensin and thus affects blood pressure
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https://www.encyclo.co.uk/local/20974

A chemical made by the kidneys that helps control blood pressure.
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https://www.encyclo.co.uk/local/21200

An enzyme secreted by the kidneys that converts angiotensinogen into angiotensin II.
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https://www.encyclo.co.uk/local/21571
  No exact match found.