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  • Title: The effect of Toll-like receptor 4 gene polymorphism on vascular complications in type 2 diabetes patients.
    Author: Buraczynska M, Zukowski P, Ksiazek K, Wacinski P, Dragan M.
    Journal: Diabetes Res Clin Pract; 2016 Jun; 116():7-13. PubMed ID: 27321310.
    Abstract:
    OBJECTIVE: The aim of our study was to assess the association between the TLR4 Asp299Gly polymorphism and vascular complications in patients with type 2 diabetes. METHODS: We examined 1090 patients with T2DM and 716 healthy controls. All subjects were genotyped for the Asp299Gly polymorphism by polymerase chain reaction (PCR) and restriction analysis. RESULTS: The genotype frequencies of the Asp299Gly polymorphism were similar in T2DM patients and controls (p=0.512 and 0.311, respectively). The polymorphism was analyzed in subgroups of patients with macro- and microvascular complications. The distribution of genotypes was significantly different between patients with CVD and those without CVD. A significant increase of G allele frequency was observed in CVD+ patients, with odds ratio 2.06 (1.27-3.34), p=0.0035. The same effect was found when patients with diabetic retinopathy were compared with those without it (OR for G allele 2.12, 95% CI 1.43-3.12, p=0.0002). There were no statistically significant differences in genotype distribution between patients with diabetic nephropathy or neuropathy and those without these complications. CONCLUSIONS: The results of our study demonstrated that the G allele of the Asp299Gly polymorphism of the TLR4 gene is associated with increased risk of cardiovascular disease and diabetic retinopathy in type 2 diabetes patients.
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