SELP and Thrombocytopenia: Platelet activation leads to platelet consumption which causes thrombocytopenia [51]; notably, PAC-1 binding and CD62P expression were both moderately correlated with decreases in platelet count (Pearson │r│ for PAC-1 = 0.50, P < 0.01; Pearson │r│ for CD62 = 0.64, P < 0.01; Fig. 1i) in COVID-19 patients.