Subject    :    [2015 Dec;39(6)] Non-Association between rs7903146 and rs12255372 Polymorphisms in Transcription Factor 7-Like 2 Gene and Type 2 Diabetes Mellitus in Jahrom City, Iran
Writer KDA
Date 2016-01-07 15:55:14 Hit 6,430
Diabetes Metab J. 2015 Dec;39(6):512-517. English. Published online Nov 13, 2015.  http://dx.doi.org/10.4093/dmj.2015.39.6.512 
Copyright © 2015 Korean Diabetes Association
   
Non-Association between rs7903146 and rs12255372 Polymorphisms in Transcription Factor 7-Like 2 Gene and Type 2 Diabetes Mellitus in Jahrom City, Iran
Mohammad Pourahmadi,1,2 Saiedeh Erfanian,2 Malihe Moradzadeh,3 and Abdolreza Sotoodeh Jahromi2
1Department of Anatomy, Jahrom University of Medical Sciences, Jahrom, Iran.
2Research Center for Non-Communicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran.
3Department of New Sciences and Technology, Mashhad University of Medical Sciences, Mashhad, Iran.
Corresponding author: Saeideh Erfanian. Research Center for Non-Communicable Diseases, Jahrom University of Medical Sciences, Motahari Avenue, Jahrom, Iran. Email: erfanian_85@yahoo.com 
 
Received January 27, 2015; Accepted August 17, 2015.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

 
Abstract
Background

Transcription factor 7-like 2 (TCF7L2) is a transcription factor in the Wnt signaling pathway. High levels of TCF7L2 have been reported in most human tissues, including the heart, lung, brain, liver, kidney, placenta, adipose tissues, and pancreatic β-cells. The purpose of this study was to assess the association between TCF7L2 polymorphisms (rs12255372 and rs7903146) and type 2 diabetes mellitus in the city of Jahrom, Iran.

Methods

This case-control study was conducted with 200 patients referred to Diabetes Clinics and 200 healthy subjects in Jahrom City. Biochemical characteristics were first determined. TCF7L2 rs1255372 and rs7903146 polymorphisms were then genotyped using the polymerase chain reaction-restriction fragment length polymorphism method.

Results

T-allele frequencies of both single nucleotide polymorphisms (SNPs) were significantly higher in diabetic patients than in normal glucose-tolerant subjects (rs12255372: 20.3% vs. 14.5%; rs7903146: 28.5% vs. 22.25%). The rs12255372 (G/T) polymorphism analysis showed an odds ratio of 0.473 (95% confidence interval [CI], 0.170 to 1.314; P=0.151) for the TT genotype and 0.646 (95% CI, 0.410 to 1.019; P=0.060) for the TG genotype, compared with the GG genotype. The rs7903146 (C/T) polymorphism odds ratios for TT and TC genotypes were 0.564 (95% CI, 0.280 to 1.135; P=0.109) and 0.751 (95% CI, 0.487 to 1.157; P=0.194) compared with the CC genotype, respectively.

Conclusion

The rs12255372 and rs7903146 SNPs of the TCF7L2 gene were not associated with insulin resistance in the evaluated population.

   

Keywords: Diabetes mellitus, type 2; Polymorphisms; rs12255372; rs7903146; TCF7L gene

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