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Polymorphisms of promoter region of TNF-? gene in Iranian Azeri Turkish patients with Behçet's disease

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Date
2017
Author
Abdolmohammadi, R
Bonyadi, M
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Abstract
Behçet's disease (BD) is a complex chronic relapsing inflammatory disorder of unknown etiology. Alterations of the tumor necrosis factor (TNF) expression related to the polymorphic alleles of TNF gene may implicate a pathogenetic role in increased activity of this cytokine in BD. A current study aimed at investigating the possible association between BD and its clinical features in Iranian Azeri Turks with two functional TNF-? gene polymorphisms (at the positions of -238 and -857). A total number of 166 Iranian subjects were enrolled into two different groups; patients with BD (n=64), and ethnically matched healthy controls (n=101). The genotype distributions of BD patients and healthy controls were determined. The frequency of TNF-? -857C allele was significantly higher in Behçet's patients than that of healthy controls (P=0.001; odds ratio [OR]=2.616; 95% confidence interval [CI]=1.129-6.160), whereas the frequency of TNF-? -238A allele was similar in both groups. The sole TNF-? haplotype-857C-1031C, was associated with an increase in the risk of developing BD. The TNF-? -857C allele was considerably associated with BD in this cohort. The findings of this study, collectively, indicate that TNF-? -857C-1031C haplotype located in the promoter region of the gene could exert major influence on the susceptibility to BD. © 2017 The Korean Academy of Medical Sciences.
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http://dspace.tbzmed.ac.ir:8080/xmlui/handle/123456789/57243
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