Figure 1. A significant association between metabolic syndrome and severity of COVID-19. OR (odds ratio) and RR (relative risk) indicate the risk for the development of severe COVID-19. AGT: angiotensinogen; CI: confidence interval; CVD: cardiovascular disease; FFA: free fatty acids; IL: interleukin; PAI-1: plasminogen activator inhibitor-1; TNF-α: tumor necrosis factor-alpha; COVID-19: coronavirus disease 2019.
Figure 2. A mechanism for inflammatory cytokines-induced thrombosis formation. AGT: angiotensinogen; CI: confidence interval; FFA: free fatty acids; IL: interleukin; PAF: platelet-activating factor; PAI-1: plasminogen activator inhibitor-1; TF: tissue factor; t-PA: tissue-type plasminogen activator; PDGF: platelet-derived growth factor; VWF: von Willebrand factor.