The renin-angiotensin system (RAS) is currently considered a central regulator of blood pressure, in which angiotensin-converting enzyme (ACE) and its newly identified homologue ACE2 play a key role.

• 肾素血管紧张素系统(RAS)是机体内调控血压稳定的最重要机制之一,其中血管紧张素转换酶(ACE)及其新近发现的同源酶ACE2起关键性作用。