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Disease Markers
Volume 2015 (2015), Article ID 638693, 10 pages
http://dx.doi.org/10.1155/2015/638693
Research Article

Influence of GSTM1, GSTT1, and GSTP1 Polymorphisms on Type 2 Diabetes Mellitus and Diabetic Sensorimotor Peripheral Neuropathy Risk

1Department of Pathophysiology, University of Medicine and Pharmacy, Gheorghe Marinescu 38, 540139 Tîrgu Mureş, Romania
2Department of Medical Genetics, University of Medicine and Pharmacy, Gheorghe Marinescu 38, 540139 Tîrgu Mureş, Romania
3Department of Neurology, University of Medicine and Pharmacy, Gheorghe Marinescu 38, 540139 Tîrgu Mureş, Romania
4Intensive Care Unit, Mureș County Hospital, Bernády György 6, 540000 Tîrgu Mureş, Romania
5Department of Epidemiology, University of Medicine and Pharmacy, Gheorghe Marinescu 38, 540139 Tîrgu Mureş, Romania
6Department of Laboratory Medicine, University of Medicine and Pharmacy, Gheorghe Marinescu 38, 540139 Tîrgu Mureş, Romania

Received 19 July 2015; Accepted 26 August 2015

Academic Editor: Donald H. Chace

Copyright © 2015 Adina Stoian et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background and Aims. Diabetic neuropathy is a frequent complication of type 2 diabetes mellitus (T2DM). Genetic susceptibility and oxidative stress may play a role in the appearance of T2DM and diabetic neuropathy. We investigated the relation between polymorphism in genes related to oxidative stress such as GSTM1, GSTT1, and GSTP1 and the presence of T2DM and diabetic neuropathy (DN). Methods. Samples were collected from 84 patients with T2DM (42 patients with DN and 42 patients without DN) and 98 healthy controls and genotyped by using polymerase chain reaction and restriction fragment length polymorphism method. Results. GSTP1 Ile105Val polymorphism was associated with the risk of developing T2DM () but not with the risk of developing DN in diabetic cases. GSTM1 and GSTT1 gene polymorphisms were associated with neither the risk of developing T2DM nor the risk of DN occurrence in diabetic patients. No association was observed between the patients with T2DM and DSPN (diabetic sensorimotor peripheral neuropathy) and T2DM without DSPN regarding investigated polymorphism. Conclusion. Our data suggest that GSTP1 gene polymorphisms may contribute to the development of T2DM in Romanian population. GSTM1, GSTT1, and GSTP1 gene polymorphisms are not associated with susceptibility of developing diabetic neuropathy in T2DM patients.