Genetic susceptibility of term pregnant women to oxidative damage.
Genetic polymorphisms involved in the activation and detoxification of exogenous chemicals and in the production and scavenging of reactive oxygen species may modulate the levels of oxidative injury biomarker. We investigated 81 pregnant women in Inchon, Korea. In addition to a questionnaire survey, urinary concentrations of 8-hydroxydeoxyguanosine (8-OH-dG) and malondialdehyde (MDA) were measured as oxidative injury biomarkers. Cytochrome P-450(CYP)1A1, CYP2E1, glutathione S-transferase (GST)M1 and GSTT1 polymorphisms and myeloperoxidase (MPO) and manganese superoxide dismutase (MnSOD) polymorphisms were evaluated to determine the effect of genetic modification on urinary 8-OH-dG and MDA. The concentrations of urinary 8-OH-dG were significantly elevated in the presence of the MnSOD variant genotype (P=0.04) and in the case of GSTM1 null status (P=0.02) by multivariate regression. The concentrations of urinary MDA were not affected significantly by the genetic polymorphisms. This result shows that oxidative stress injury is modified by some heritable polymorphisms, including GSTM1 and MnSOD.
Hong
Yun-Chul
YC
Department of Occupational and Environmental Medicine, Inha University College of Medicine, 7-241, 3rd Street Shinheung-Dong, Jung-Gu, 400-103, Inchon, South Korea. chong@inha.ac.kr
Lee
Kwan-Hee
KH
Yi
Cheol-Ho
CH
Ha
Eun-Hee
EH
Christiani
David C
DC
D000080242:8-Hydroxy-2'-Deoxyguanosine; D000328:Adult; D015415:Biomarkers / Q000652:urine; D019363:Cytochrome P-450 CYP1A1 / Q000235:genetics; D019392:Cytochrome P-450 CYP2E1 / Q000235:genetics; D003849:Deoxyguanosine / Q000031:analogs & derivatives* / Q000652:urine; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D005982:Glutathione Transferase / Q000235:genetics; D006801:Humans; D008315:Malondialdehyde / Q000652:urine; D018384:Oxidative Stress / Q000235:genetics*; D009195:Peroxidase / Q000235:genetics; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length; D011247:Pregnancy; D013482:Superoxide Dismutase / Q000235:genetics; D011795:Surveys and Questionnaires
D000080242:8-Hydroxy-2'-Deoxyguanosine; D015415:Biomarkers; D019363:Cytochrome P-450 CYP1A1; D019392:Cytochrome P-450 CYP2E1; D003849:Deoxyguanosine; D005982:Glutathione Transferase; D008315:Malondialdehyde; D009195:Peroxidase; D013482:Superoxide Dismutase; C413545:glutathione S-transferase T1