Repository of Research and Investigative Information

Repository of Research and Investigative Information

Zahedan University of Medical Sciences

The effects of the genetic polymorphisms of antioxidant enzymes on susceptibility to papillary thyroid carcinoma

(UNSPECIFIED) The effects of the genetic polymorphisms of antioxidant enzymes on susceptibility to papillary thyroid carcinoma. Iubmb Life. p. 9. ISSN 1521-6543

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Abstract

Several lines of evidences have indicated that inflammation play an important role in the carcinogenesis. During the inflammatory processes, free radical species are produced from oxidative stress. In normal conditions, enzymatic and nonenzymatic antioxidants remove these products. Manganese superoxide dismutase (MnSOD), glutathione peroxidase-1 (GPx-1), and catalase (CAT) are three important enzymes. Therefore, this study aimed to evaluate the effects of MnSOD (SOD2), GPX-1, and CAT genetic polymorphisms on papillary thyroid carcinoma (PTC) susceptibility. A total of 134 patients with PTC and 151 healthy controls were recruited to participate in this study. All samples were genotyped for SOD2 rs4880, GPX1 1050450, and CAT rs7943316 polymorphisms by polymerase chain reaction-restriction fragment length polymorphism method. The frequencies of the rs1050450, rs4880, and rs7943316 alleles and genotypes were not different between PTC patients and controls. However, the TC genotype of SOD2 rs4880 polymorphism was significantly higher in males compared to that in females in PTC patients (odds ratio OR, 3.9 95% CI, 1.5-11, p = .007). The rs4880 polymorphism was also associated with higher stages (III-IV) of PTC in dominant model. No significant correlation was found between GPX1-rs1050450 and CAT-rs7943316 polymorphisms and demographic, clinical, and pathological features of the disease. The SOD2 rs4880CT genotype was more frequent in males with PTC and patients with higher stages (III-IV) of disease (OR, 2.9 95% CI, 1.1-7.7, p = .04). However, no significant association was found between GPX1-rs1050450 and CAT-rs7943316 variants and PTC or its demographic, clinical, and pathological features.

Item Type: Article
Keywords: CAT GPX MnSOD papillary thyroid carcinoma polymorphism oxidative stress chronic inflammation breast-cancer sod2 rs4880 association risk gpx1 variants catalase survival Biochemistry & Molecular Biology Cell Biology
Page Range: p. 9
Journal or Publication Title: Iubmb Life
Journal Index: ISI
Identification Number: https://doi.org/10.1002/iub.2246
ISSN: 1521-6543
Depositing User: خانم مهدیه رضائی پور
URI: http://eprints.zaums.ac.ir/id/eprint/3838

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