Abstract
Reactive oxygen species are involved in the pathogenesis of type 2 diabetes mellitus (T2DM). Catalase and Glutathione peroxidase-1 are antioxidant enzymes and the activity of them is essential for the protection against damage caused by reactive oxygen species. The aim of this study was to investigate the association between genetic polymorphisms of CAT gene (rs7943316) and GPx-1 gene (rs1050450) in patients with type 2 diabetes. In this case-control study, a total of 120 Iranian patients with T2DM and 120 healthy individuals as control were included. Genotypes were determined by PCR-RFLP. A significant difference was found between genotyping distribution of CAT (–21 A/T) polymorphism.The frequency of TT genotype was increased in patients compared to controls and we observed a statistically significant difference (OR = 1.797, 95% CI = 0.975–3.318, P = 0.044). Distribution of genotypes did not differ for GPx-1 (198 C/T) polymorphism between the cases and controls subjects. This study indicated that CAT rs7943316 genotype (TT) was associated with an increased risk of T2DM. No evidence was found to support an association between GPx-1 (198 C/T) polymorphism and T2DM.
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Saravani, S., Miri, H.R., Saravani, R. et al. Association of catalase (rs7943316) and glutathione peroxidase-1 (rs1050450) polymorphisms with the risk of type 2 diabetes (T2DM). Mol. Genet. Microbiol. Virol. 30, 216–220 (2015). https://doi.org/10.3103/S0891416815040096
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DOI: https://doi.org/10.3103/S0891416815040096