Submitted: 24 Sep 2017
Accepted: 24 Apr 2018
First published online: 24 May 2018
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J Shahrekord Univ Med Sci. 2019;21(1):14-18.
  Abstract View: 112
  PDF Download: 66

Original Article

Association of STAT4 rs7582694 with susceptibility to systemic lupus erythematosus in population of Lorestan province, Iran

Gholam Reza Izadkhasti 1, Seyed Reza Kazeminezhad 1 * ORCiD, Mohammad Reza Akhoond 2

1 Department of Genetics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2 Department of Statistics, Faculty of Mathematical Sciences and Computer, Shahid Chamran University of Ahvaz, Ahvaz, Iran
*Corresponding Author: Seyed Reza Kazeminezhad, Associate Professor, Tel/Fax: +98-613 3338965, Email: Email: kazemi_reza@scu.ac.ir

Abstract

Background and aims: Systemic lupus erythematosus (SLE) is a polygenic, inflammatory disease with a complex genetic inheritance that affects almost all the organs and systems of the host body. According to studies, STAT4 is a susceptible gene that can participate in the development of SLE in different populations. The aim of this study was to show the association between rs7582694 single nucleotide polymorphism with increased risk of SLE disease and two serological symptoms of the disease (i.e., anti-dsDNA and ANA) in the population residing in Lorestan province.

Methods: The present study was conducted as a case control research. In this study, the prevalence of STAT4 gene G/C (rs7582694) single nucleotide polymorphism (SNP) in the patients with SLE (n=122) and in control group (n=127) was investigated among a sample population from Lorestan province. This SNP was genotyped based on using two methods including PCR-RFLP (polymerase chain reactionrestriction fragment length polymorphism) and tetra-primer ARMS-PCR (amplification-refractory mutation system) methods.

Results: According to the obtained results, the frequency of minor allele C from this SNP (related allele with the disease) as compared to the major allele G (normal allele) was significantly higher in SLE patients than the controls. In addition, it showed a significant association (odds ratio [OR] = 1.623, 95% CI = 1.111-2.370, P = 0.012) with susceptibility to SLE. Moreover, a significant correlation (OR = 2.249, 95% CI = 1.031–4.904, P = 0.042) was found between the rs7582694 CC genotype and the risk of SLE in the population of Lorestan.

Conclusion: Overall, based on the results it can be concluded that there was a relationship between the STAT4 gene G/C (rs7582694) SNP and the increased risk of SLE. However, no association was observed between the above-mentioned gene and anti-dsDNA or ANA that are some of the symptoms of SLE.

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