Abstract
Hepatitis C virus (HCV) is a pathogen causing chronic hepatitis, cirrhosis, and liver cancer occurring in about 3% of the world's population. Most individuals infected with HCV develop persistent viremia. Oxidative stress may play an important role in the pathogenesis of a number of diseases including HCV infection and diabetes mellitus. Polymorphisms in the antioxidant genes may determine cellular oxidative stress levels as a primary pathogenic role in HCV and/or in its complications. Patients with HCV and normal, healthy controls were investigated for a superoxide dismutase (SOD-2) polymorphism in the mitochondrial targeting sequence with Ala/Val (C-9T) substitution. Polymorphisms in antioxidant gene SOD-2 were carried out by PCR, restriction fragment length polymorphism assays and by polyacrylamide gel electrophoresis. For the SOD-2 polymorphism, the RNA positive group showed a higher percentage of "CT" genotype than the RNA negative group (89.3% vs. 66.1%, P = 0.001, χ(2) = 11.9). The RNA negative group had more TT genotypes than the RNA positive group (27.4% vs. 6.80%, P = 0.01, χ(2) = 11.6). The exposed uninfected group had an increased frequency of the "CT" genotype (86.2% vs. 66.1%, P = 0.02, χ(2) = 5.5). The RNA positives had a higher frequency of the "CT" from the normal controls (72.1% vs. 89.2%, P = 0.005, χ(2) = 7.8).
Original language | English |
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Pages (from-to) | 941-947 |
Number of pages | 0 |
Journal | J Med Virol |
Volume | 86 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 2014 |
Keywords
- SOD-2
- antioxidant
- gene polymorphism
- hepatitis C
- virus clearance
- Adult
- Electrophoresis
- Polyacrylamide Gel
- Female
- Genetic Predisposition to Disease
- Hepacivirus
- Hepatitis C
- Humans
- Male
- Middle Aged
- Polymerase Chain Reaction
- Polymorphism
- Restriction Fragment Length
- Single Nucleotide
- Retrospective Studies
- Superoxide Dismutase