ACE2 and COVID-19: It is a member of the renin-angiotensin system (RAS) and has been implicated in diabatic cardiovascular complications and chronic heart failure; elevated expression has been linked to severe COVID-19, and it is a receptor for SARS-CoV2 entry into the cell (Patel et al., 2013; Jiang et al., 2014; Beyerstedt et al., 2021).We detected ACE2 in the serum biomarker signatures for A1, A2, and B1.