Polymorphisms of Microsomal Epoxide Hydrolase and Glutathione S-transferase P1 in a Male Turkish Population

Polymorphic genes encoding drug-metabolizing enzymes may account for interindividual differences in certain types of diseases especially cancer. In this study, microsomal epoxide hydrolase (EPHX1) and glutathione S-transferase P1 (GSTP1) gene polymorphisms were determined among 133 healthy males of...

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Bibliographic Details
Published inInternational journal of toxicology Vol. 26; no. 1; pp. 41 - 46
Main Authors Ada, Ahmet O., Suzen, H. Sinan, Iscan, Mumtaz
Format Journal Article
LanguageEnglish
Published Los Angeles, CA SAGE Publications 01.01.2007
Subjects
Adult
Epoxide Hydrolases - genetics
Exons - genetics
Genotype
Glutathione S-Transferase pi - genetics
Humans
Male
Middle Aged
Polymorphism, Genetic
Turkey
Turkey
Turkish Population
GSTP1
EPHX1
Polymorphism
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Summary:Polymorphic genes encoding drug-metabolizing enzymes may account for interindividual differences in certain types of diseases especially cancer. In this study, microsomal epoxide hydrolase (EPHX1) and glutathione S-transferase P1 (GSTP1) gene polymorphisms were determined among 133 healthy males of a Turkish population. Frequencies of EPHX1 and GSTP1 gene polymorphisms were determined by using the polymerase chain reaction–restriction fragment length polymorphism (PCR/RFLP) method. The observed genotype frequencies of EPHX1 exon 3 were Tyr113Tyr:50.4%, Tyr113His: 42.1%, His113His: 7.5% and EPHX1 exon 4 were His139His: 69.2%, His139Arg: 28.6%, Arg133Arg: 2.2%. GSTP1 exon 5 genotype frequencies were Ile105Ile: 58.7%, Ile105Val: 35.3%, Val105Val: 6.0% and GSTP1 exon 6 genotype frequencies were Ala114Ala: 85.0%, Ala114Val: 14.3%, Val114Val: 0.7%. These results reveal that the frequencies of EPHX1 and GSTP1gene polymorphisms in a small sampling of males within a Turkish population are similar to European Caucasian populations.
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ISSN:1091-5818
1092-874X
DOI:10.1080/10915810601118222