Fig. 1From: The alternative renin–angiotensin system in critically ill patients: pathophysiology and therapeutic implicationsClassical and alternative renin–angiotensin system. alamandine; angiotensin-(1-7), angiotensin-(1-9), angiotensin III; angiotensin IV; MasR: Mas receptor; APA (aminopeptidase A), APN (alanyl aminopeptidase N), angiotensin converting enzyme 33 2 (ACE2), AT2 (angiotensin II receptor 2), AT4 (angiotensin II receptor 4), MrgD (Mas-related G protein-coupled receptor member D), neprilysin (NEP).Back to article page