ACE2 and type 2 diabetes mellitus: The large GTEx data revealed that ACE2 expression is high in Asian females and young people, those who are known to be less susceptible, and even less inflicted by severe or fatal outcome, while it is low in males, further decrease with age and type 2 diabetes mellitus (T2DM), those who are most susceptible to bad outcome (Chen et al., 2020a).