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Article type: Research Article
Authors: Rahimi, Zohreh; | Rahimi, Ziba | Shahvaisi-Zadeh, Frahad | Sadeghei, Shieda | Vessal, Mahmood | Yavari, Niloofar
Affiliations: Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran | Department of Biochemistry, Medical School, Kermanshah University of Medical Sciences, Kermanshah, Iran | Department of Biochemistry, Fars Science and Research Branch, Islamic Azad University, Fars, Iran
Note: [] Corresponding author: Zohreh Rahimi, Biochemistry, Medical Biology Research Center, Medical School, Daneshgah Avenue, Kermanshah, P.O. Box: 67148-69914, Iran. Tel.: +98 831 427 4882; Fax: +98 831 427 6471; E-mail: [email protected]
Abstract: To investigate the possible association between eNOS 4a/b polymorphism and the risk of developing type 2 diabetes mellitus (T2DM) and diabetic nephropathy (DN) 173 T2DM patients with and without DN and 101 healthy subjects with ethnic background of Kurds were examined for the frequency of eNOS variants using PCR-RFLP method. The frequency of eNOS 4a/b genotypes between T2DM and controls was not significantly difference. Studying eNOS 4a/b variants alone indicated that the presence of eNOS 4a allele was not associated with the risk of developing DN. However, considering both polymorphisms of eNOS 4a/b and G894T indicated that the risk of macroalbuminuria significantly increased in the presence of either eNOS 4a or 894T allele by 2.45 times (p=0.014) and 3.7-fold (p=0.016), respectively. However, the concomitant presence of both alleles was not associated with the risk of macroalbuminuria. In microalbuminuric patients, in the presence of each allele, the risk of microalbuminuria increased 2.2 times (p=0.028) and 2.72-fold (p=0.057) for eNOS 4a and 894T alleles, respectively. However, the combined presence of both eNOS 894T and 4a alleles was not associated with the risk of microalbuminuria. The present study indicates the absence of association between eNOS 4a/b variants and the risk of developing T2DM and DN. Also, we demonstrated that eNOS 4a or 894T allele alone increased the risk of developing DN but this effect was modified by the concomitant presence of both alleles.
Keywords: T2DM, eNOS variants, diabetic nephropathy, Western Iran
DOI: 10.3233/DMA-130988
Journal: Disease Markers, vol. 34, no. 6, pp. 437-443, 2013
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