GSTP1 and type 2 diabetes mellitus: Ramprasath et al. also showed a significant risk for T2DM in patients harboring the GSTP1 Ile/Val and Val/Val genotypes (OR = 1.423, 95% CI = 1.041–1.946, p = 0.027 and OR = 1.829, 95% CI = 1.064–3.142, p = 0.029) [26].