The expression of CYP3A4 significantly correlated with Asthma, Graft-versus-host disease, Allograft rejection, Type I diabetes mellitus, Autoimmune thyroid disease, Ubiquitin mediated proteolysis, Cell cycle, Lysosome, Protein processing in endoplasmic reticulum, Hedgehog signaling pathway. This evidence concerns the gene CYP3A4 and type 1 diabetes mellitus.