Additionally, a case–control study of genes encoding CYP1A1, CYP1A2, CYP2E1, GSTM1, and GSTT1 has shown that only a combination of polymorphisms in CYP1A1 and GSTM1 is associated with PCa risk in the Japanese population [249]. The gene discussed is CYP1A1; the disease is posterior cortical atrophy.