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renin

renin

1 9.3
A chemical the kidneys make that helps control blood pressure
  • noun
  • /ˈrɛnɪn/
  • Specialized
: renina
  • The effect of renin is to change angiotensinogen into angiotensin I.
  • renin-angiotensin
  • renin-angiotensin system
  • renin-angiotensin system inhibitors

Examples

  • The kidneys are also responsible for the production of three important hormones: erythropoietin, renin, and vitamin D.

    Academic text (2012)
  • Stimulated plasma renin came back high at 11.9 ng/ml/hr (Normal 1.31-3.95).

    Academic text (2007)
  • The renin-angiotensin system has been shown to play a central role in the pathogenesis and progression of heart failure.

    Academic text (2016)
  • In clinical trials, inhibitors of the renin-angiotensin system have been shown to have only modest long-term effects on symptoms.

    Academic text (2016)
  • The effect of renin is to change angiotensinogen into angiotensin I.

  • What were the results of the renal-vein renin assays?

  • High levels of renin in the blood can indicate issues with blood pressure regulation and kidney health.

Surface Forms

renin singular
renins plural

Morphology

renin = ren + in

Formed from a specialized combining form 'ren-' (kidney) plus the chemical/protein suffix '-in', neither of which is a familiar standalone English word for average learners, so the meaning is not derivable from known components.

Etymology

Renin comes from the Latin root ren- meaning 'kidney' and the common protein ending -in, as in insulin. So Renin is a protein made by the kidneys that helps control blood pressure.