Publication date: May 06, 2020
The relationship between Renin-Angiotensin system (RAS) and COVID-19 pandemic and, in particular, RAS as part of the CoV-2 infection process via Angiotensin Converting Enzyme 2 (ACE2), the entry point of SARS-CoV-2, has resulted in conflicting suggestions regarding how RAS and its role(s) should inform treating COVID-19. ACE inhibitors or angiotensin II (Ang)-type 1 receptor blockers (ARBs), in fact, have been suggested to be avoided as they potentially upregulate ACE2 and, conversely, there are suggestions that ARBs might be beneficial as SARS-CoV-2 causing ACE2 downregulation slows the Ang II conversion to the vasodilatory, anti-inflammatory, antioxidant and antiatherosclerotic Ang 1-7 , and the use of ARBs by blocking the excessive Ang II type-1 receptors activation, would be beneficial upregulating ACE2 activity and increasing Ang 1-7 levels. This article is protected by copyright. All rights reserved.