代谢
它被氨基肽酶A和血管紧张素转换酶2分别转化为血管紧张素-(2-8)[血管紧张素III]和血管紧张素-(1-7),在血浆、红细胞和许多主要器官(即肠道、肾脏、肝脏和肺)中。血管紧张素II型1受体(AT1)介导的血管紧张素III活性大约是血管紧张素II的40%;然而,醛固酮合成活性与血管紧张素II相似。血管紧张素-(1-7)在AT1受体上产生与血管紧张素II相反的效果并导致血管舒张。尽管如此,官方处方信息还指出,没有进行过正式的研究来检查血管紧张素II的代谢。
It is metabolized by aminopeptidase A and angiotensin converting enzyme 2 to angiotensin-(2-8) [angiotensin III] and angiotensin-(1-7), respectively in plasma, erythrocytes and many of the major organs (i.e. intestine, kidney, liver and lung). Angiotensin II type 1 receptor (AT1) mediated activity of angiotensin III is approximately 40% of angiotensin II; however, aldosterone synthesis activity is similar to angiotensin II. Angiotensin-(1-7) exerts the opposite effects of angiotensin II on AT1 receptors and causes vasodilation. Nevertheless, the official prescribing information also notes that no formal studies have been conducted that examine the metabolism of angiotensin II.
来源:DrugBank