An enzyme secreted by and stored in the kidneys which promotes the production of the protein angiotensin.
- ‘By regulating salt levels through production of an enzyme called renin (as well as other substances), the kidneys ensure that blood pressure is regulated.’
- ‘The greatest cause is probably due to lower production of hormones such as renin, angiotensin and aldosterone, caused by the increased stress (these hormones assist the body in retaining fluid).’
- ‘By causing volume and sodium depletion, thiazide diuretics stimulate the production of renin and angiotensin.’
- ‘All these changes act directly or indirectly as stimuli for the release of the enzyme renin in the kidneys, triggering a sequence of chemical events in the blood of which the end product is angiotensin II.’
- ‘Angiotensinogen, the initial substrate of the renin-angiotensin-aldosterone system, is produced in the liver; renin converts it to angiotensin I in the kidneys.’
Late 19th century: from Latin ren ‘kidney’ + -in.
We take a look at several popular, though confusing, punctuation marks.