Association between  SOD1, CAT, GSHPX1  polymorphisms and the risk of inflammatory bowel disease in the Polish population

Malgorzata Mrowicka; Jerzy Mrowicki; Michal Mik; Radoslaw Wojtczak; Lukasz Dziki; Adam Dziki; Ireneusz Majsterek

doi:10.18632/oncotarget.22675

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Research Papers:

Association between SOD1, CAT, GSHPX1 polymorphisms and the risk of inflammatory bowel disease in the Polish population

Malgorzata Mrowicka _, Jerzy Mrowicki, Michal Mik, Radoslaw Wojtczak, Lukasz Dziki, Adam Dziki and Ireneusz Majsterek

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Oncotarget. 2017; 8:109332-109339. https://doi.org/10.18632/oncotarget.22675

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Abstract

Malgorzata Mrowicka1, Jerzy Mrowicki1, Michal Mik2, Radoslaw Wojtczak1, Lukasz Dziki2, Adam Dziki2 and Ireneusz Majsterek1

1Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Hallera 1 Square, Lodz 90-647, Poland

2Chair of Surgery, Department of General and Colorectal Surgery, Medical University of Lodz, Hallera 1 Square, Lodz 90-647, Poland

Correspondence to:

Malgorzata Mrowicka, email: [email protected]

Keywords: inflammatory bowel diseases; genetic polymorphism; antioxidant enzyme activity; oxidative stress

Received: August 11, 2017 Accepted: October 28, 2017 Published: November 27, 2017

ABSTRACT

Purpose: The main aim of this study was investigate the association between the genetic polymorphism of antioxidant enzyme genes: SOD1, CAT and GSHPX1 and the risk of inflammatory bowel disease (IBD), including Crohn’s disease and ulcerative colitis in the Polish population.

Methods: A total of 445 subjects including 200 patients with IBD and 245 controls were allowed in this study. We determined activity of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx1) and examination their association with the SNPs of respective genes (SOD1 +35A/C, CAT C-262T and GSHPX1 Pro197Leu). RFLP technique was used to determine the selected genes polymorphisms. Antioxidant enzymes activity were evaluated in erythrocyte hemolysate of 23 patients with non-active IBD and 30 healthy participants.

Results: The A/C genotype and the C allele frequencies of A/C polymorphism of SOD1 gene were significantly associated with the reduced risk of IBD (OR=0.43; 95% CI 0.23; 0.83). Alike, C/T (OR=0.45; 95% CI= 0.29; 0.70) and T/T genotype (OR=0.43; 95% CI= 0.21; 0.87) of GSHPX1 gene polymorphism diminished the susceptibility to IBD. A significant decrease of CAT (P=0.028) and increase of GPx1 (P=0.025) enzyme activities were seen in IBD patients compared to control.

Conclusions: Our data confirm dysregulated antioxidant capacity in patients suffering from IBD. Both, the SOD1 A/C genotype as well as GSHPX1 C/T and T/T genotypes may be associated with a reduction risk of IBD in the Polish population.

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Research Papers:

Association between SOD1, CAT, GSHPX1 polymorphisms and the risk of inflammatory bowel disease in the Polish population

Abstract