Conversely, other researches [12–19] also had comprehensive studies of the role of the CYP2J2 G-50T polymorphism in the development of CAD risk and found no significant association between the CYP2J2 G-50T polymorphism and CAD susceptibility, which indicates that the development of risk of CAD may not be affected by variant alleles. The gene discussed is CYP2J2; the disease is coronary artery disorder.