A 3'-untranslated region variant (rs2289046) of insulin receptor substrate 2 gene is associated with susceptibility to nonalcoholic fatty liver disease

Dabiri, R. and Mahmoudi, T. and Sabzikarian, M. and Asadi, A. and Farahani, H. and Nobakht, H. and Maleki, I. and Mansour-Ghanaei, F. and Derakshshan, F. and Zali, M.R. (2020) A 3'-untranslated region variant (rs2289046) of insulin receptor substrate 2 gene is associated with susceptibility to nonalcoholic fatty liver disease. Acta gastro-enterologica Belgica, 83 (2). pp. 271-276.

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Abstract

Purpose: Nonalcoholic fatty liver disease (NAFLD) is an increasing global health concern defined by excessive hepatic fat content in the absence of excessive alcohol consumption. Regarding the key role of insulin and insulin resistance in NAFLD, we investigated whether insulin receptor substrate 1 (IRS1) and insulin receptor substrate 2 (IRS2) gene variants were associated with NAFLD risk. Methods: In this case-control study, 305 subjects including 151 cases with biopsy-proven NAFLD and 154 controls were enrolled. All the subjects were genotyped for IRS1 (rs1801278) and IRS2 (rs2289046) gene variants using PCR-RFLP method. Results: Our findings showed that the IRS2 rs2289046 "GG+AG" genotype compared with "AA" genotype to be a marker of decreased NAFLD susceptibility and the difference remained significant even after adjustment for confounding factors including age, BMI, sex, smoking status, systolic blood pressure, and diastolic blood pressure (P=0.014; OR=0.50, 95CI= 0.29-0.87). Furthermore, the IRS2 "G" allele was significantly underrepresented in the cases with NAFLD than controls (P=0.026 ; OR=0.62, 95CI=0.41-0.94). However, no significant difference was found for IRS1 rs1801278 gene variant. Conclusions: This study suggests, for the first time, that the IRS2 gene rs2289046 variant may play a role in NAFLD susceptibility. Nevertheless, this observation warrants further investigations in other populations. © Acta Gastro-Enterologica Belgica.

Item Type: Article
Additional Information: cited By 0
Subjects: WK Endocrine System
WI Digestive System
Depositing User: eprints admin
Date Deposited: 09 Sep 2020 07:02
Last Modified: 09 Sep 2020 07:02
URI: http://eprints.iums.ac.ir/id/eprint/23855

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