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前言胃素(第3·4·4·15号酶)是蛋白分解酶的一种,本身没有升压作用。肾脏的肾素储存在肾近球细胞颗粒内(Jaxtaglomerular Granules:JG 颗粒),从该颗粒分泌到血液中的肾素是血浆肾素的基础。当其同氨基酸结合水解后成为血管紧张素Ⅰ,再经肺循环转化酶的作用,变成具有升压作用的血管紧张素Ⅱ。
Pregacein (No. 3.4.4.15) is a type of proteolytic enzyme that does not itself booster. Kidney renin is stored within the mesangial cells of the kidney (Jagtaglomerular Granules: JG particles) and the renin secreted from the particles into the blood is the basis of plasma renin. When it is hydrolyzed with amino acids to become angiotensin I, and then by the role of pulmonary circulation into the enzyme, with a pressure effect of angiotensin II.