Association of metabolic and DNA repair enzyme gene polymorphisms and DNA damage in coke-oven workers / 中华预防医学杂志
Chinese Journal of Preventive Medicine
;
(12): 164-167, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-282369
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the association of polymorphisms of metabolic and DNA repair enzyme genes and DNA damage in peripheral blood lymphocytes in coke-oven workers.</p><p><b>METHODS</b>One hundred and forty-four coke-oven workers and 50 controls were recruited in this study. Urinary 1-hydroxypyrene (1-OHP) levels were measured as the internal dose of polycyclic aromatic hydrocarbons exposure. DNA damage was detected by alkaline comet assay, and the value of 1.74 was used as the cut-off value to determine whether the individual's DNA damage was positive. The genotypes of CYP1A1, CYP2E1, GSTP1, NQO1, mEH and XRCC1 were determined by PCR-based methods. With adjustment for urinary 1-OHP, age, sex, multiple analysis of covariance was used to study the association between genotypes and the ln-transformed olive TM and multiple logistic regression was used to calculate the adjusted OR and the 95% CI for the risk of DNA damage.</p><p><b>RESULTS</b>In 144 coke-oven workers, with adjustment for urinary 1-OHP, coking history and sex, the olive TM was significantly higher with XRCC1 280His allele than those with Arg allele (5.6 vs. 2.8, P < 0.01). The subjects with XRCC1 280His allele also have significantly higher risk for DNA damage than subjects with Arg allele (adjusted OR = 2.66, 95% CI = 1.00-7.14, P = 0.05) and the subjects with GSTP1 104Val allele have higher risk for DNA damage than subjects with Ile allele (adjusted OR = 1.90, 95% CI = 0.94-3.85, P = 0.07).</p><p><b>CONCLUSION</b>XRCC1 and GSTP1 polymorphisms might influence the susceptibility of DNA damage in occupational PAH-exposed coke-oven workers.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Poisoning
/
DNA Ligases
/
Polymorphism, Genetic
/
DNA Damage
/
Case-Control Studies
/
Logistic Models
/
Multivariate Analysis
/
Occupational Exposure
/
NAD(P)H Dehydrogenase (Quinone)
/
Coke
Type of study:
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Preventive Medicine
Year:
2005
Type:
Article
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