Common polymorphisms in antioxidant genes (SOD2, CAT, GPX1, GSTP1, GSTM1, GSTT1, GCLC, and GCLM) were investigated also in a small cohort of clinically well-defined Slovenian T2DM patients, with CAT rs1001179 and GSTP1 rs1138272 showing the strongest association with the risk for end-stage kidney failure, while GSTP1 rs1695 and GSTP1 haplotypes influenced the risk of moderately increased albuminuria [40]. This evidence concerns the gene GSTP1 and type 2 diabetes mellitus.