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Updated: May 8, 2026

Optimized Analysis of In Vivo and In Vitro Hepatic Steatosis
Published on: March 11, 2017
Association of IRS1 gene Pro512Ala polymorphism with nonalcoholic fatty liver disease
Asadollah Asadi1, Mitra Rostami2, Radmehr Shafiee3
1University of Mohaghegh Ardabili Faculty of Science Department of Biology Ardabil Iran Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran.
Objective:
This study was designed to investigate the possible effect of the insulin receptor substrate 1 (IRS1) gene rs1801276 polymorphism on the risk of nonalcoholic fatty liver disease (NAFLD).
Subjects And Methods:
The rs1801276 polymorphism was investigated in 127 controls and 123 biopsy-proven NAFLD patients using PCR-RFLP.
Results:
No deviation from Hardy-Weinberg equilibrium was discovered for the rs1801276 variant of IRS1 in either NAFLD patients or controls (P>0.05). The distribution of different rs1801276 genotypes and alleles showed significant variations between controls and NAFLD patients. In comparison to rs1801276 'CC' genotype, the "GG+GC" genotype occurred less frequently in NAFLD patients than in controls, which also persisted after adjustment for confounding factors (P = 0.041, OR = 0.60, 95% CI = 0.45-0.93). In comparison with the IRS1 rs1801276 "C" allele, the "G" allele was significantly less prevalent in NAFLD patients than in controls (P = 0.045, OR = 0.69, 95% CI = 0.58-0.91).
Conclusions:
For the first time, we reported a significant association between the IRS1 rs1801276 polymorphism and biopsy-proven NAFLD. More studies are required to further elucidate the contribution of the IRS1 gene to NAFLD susceptibility.
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