alexa Paraoxonase-1 gene Q192R polymorphism and reactive oxygen metabolites.
Genetics & Molecular Biology

Genetics & Molecular Biology

Journal of Molecular Biomarkers & Diagnosis

Author(s): Kotani K, Tsuzaki K, Sakane N

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Abstract OBJECTIVE: Paraoxonase-1 (PON1) is a high-density lipoprotein-associated antioxidant enzyme. The Q192R polymorphism of the PON1 gene can protect against oxidative conditions, but the relationship between Q192R polymorphism and oxidative stress-related markers remains controversial. In this study, the diacron reactive oxygen metabolites (d-ROMs) test was used to investigate the relationship between Q192R polymorphism and oxidative stress-related markers in Japanese subjects. METHODS: Patients without a history of overt cardiovascular disease who were not receiving antioxidant medication were enrolled in a cross-sectional clinic-based study. An allele-specific polymerase chain reaction method was used to assess the PON1 Q192R polymorphism and compare the level of d-ROMs between genotypes. RESULTS: A total of 103 subjects were analysed. The RR genotype was associated with a significantly lower level of d-ROMs than the RQ and QQ genotypes. After multivariate analysis the relationship between the genotypes and level of d-ROMs remained independently significant. CONCLUSIONS: The RR genotype may be protective against oxidative stress in cardiovascular diseasefree Japanese subjects. In addition, the d-ROMs test can be useful for examining the role of the PON1 Q192R polymorphism under oxidative conditions.
This article was published in J Int Med Res and referenced in Journal of Molecular Biomarkers & Diagnosis

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