Abstract
Type 2 diabetes (T2D) results from combination of environmental factors and genetic determinants. Transcription factor 7-like 2 (TCF7L2) genes have been reported that it plays important role in T2D pathogenesis. In addition, TCF7L2 gene polymorphisms have been linked to T2D through many European populations. In the present study, we investigated TCF7L2 polymorphisms in healthy individuals and T2D patients and aimed to see whether TCF7L2 polymorphisms are associated with T2D in the Turkish population. We genotyped two SNPs of TCF7L2 gene, rs7903146 and rs12255372 in 100 healthy individuals and 100 patients. As a result of the genotype and allele distributions, we found that there were significantly associations between the TCF7L2 rs7903146 and risk of T2D (p=0.0172) in Turkish Population. However, there was no association for TCF7L2 rs12255372 (p=0.395) but GT genotype was higher in patient groups (p=0.0250). Similarly, our data shows that individuals who carry TCF7L2 rs7903146 polymorphism have significant risk of T2D in Turkish population.
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