肾素 血管紧张素系统 (ＲＡＳ)通过影响血管紧张性 ,体液和电解质平衡及交感神经的活性 ,在血压及心血管稳态调节中占有极其重要的地位。其生物效应主要是通过高活性的八肽ＡｎｇⅡ来实现的。经典观点认为ＲＡＳ是一循环内分泌系统 ,肝脏产生的血管紧张素原被肾素分解 ,产生无 The renin-angiotensin system (RAS) plays an important role in the regulation of blood pressure and cardiovascular homeostasis by affecting vascular tone, body fluid and electrolyte balance, and sympathetic activity. Its biological effects are mainly achieved by the highly active octapeptide Ang II. The classic view that RAS is a circulating endocrine system, the liver produces angiotensinogen was renin, resulting in no