Medical Definition of angiotensinogen
: a glycoprotein formed chiefly in the liver that is cleaved by renin to produce angiotensin I The enzyme renin affects blood pressure and electrolyte homeostasis by catalyzing the formation of angiotensin I from circulating angiotensinogen …—Nicola Glorioso et al., Science, 26 Sept. 1986—called also hypertensinogen
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