Case-only study on the relationship between genetic polymorphisms in toxicant metabolizing enzymes and risk of occupational chronic benzene poisoning / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 168-172, 2004.
Article
in Chinese
| WPRIM
| ID: wpr-271995
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effects of interaction between environmental exposure factors and genetic polymorphism in toxicant metabolizing enzymes on risk of occupational chronic benzene poisoning.</p><p><b>METHODS</b>One hundred and fifty-two cases of chronic benzene poisoning were analyzed for the risk by case-only study.</p><p><b>RESULTS</b>The frequency of non-null GSTT1 gene in benzene poisoning workers with moderate benzene exposure level was higher than that in cases with lower benzene exposure (68.63% vs 38.00%, OR(adj) = 4.32, 95% CI 1.75 - 10.66, P = 0.002). The frequency of NQO1 C.609T/T gene in alcohol drinking group was higher than that in non-drinking group (61.11% vs 20.00%, OR(adj) = 8.03, 95% CI 2.28 - 28.25, P = 0.001), moreover, it was higher in workers with smoking and drinking than that in the rest group, and in drinking x exposure level workers than that in non-drinking x exposure level workers (85.71% vs 22.76%, OR(adj) = 18.62, 95% CI 2.01 - 172.72, P = 0.01 and 61.11% vs 20.00%, OR(adj) = 3.18, 95% CI 1.55 - 6.52, P = 0.002 respectively). The frequency of non-null GSTM1 gene was also higher in drinking x exposure level workers than that in non-drinking x exposure level workers (66.67% vs 47.06%, OR(adj) = 1.99, 95% CI 1.05 - 3.76, P = 0.036).</p><p><b>CONCLUSION</b>There is interaction between the polymorphism of GSTT1 gene and moderate benzene exposure level; non-null GSTM1 gene and drinking x exposure level increase the risk of occupational chronic benzene poisoning; polymorphism of NQO1 gene C.609 also interacts with drinking, while polymorphism of NQO1 gene and drinking x smoking may further increase the risk of occupational chronic benzene poisoning.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Poisoning
/
Benzene
/
Polymorphism, Restriction Fragment Length
/
Polymerase Chain Reaction
/
Risk Factors
/
NAD(P)H Dehydrogenase (Quinone)
/
Cytochrome P-450 CYP2E1
/
Genetic Predisposition to Disease
/
Genetics
Type of study:
Etiology study
/
Risk factors
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Year:
2004
Type:
Article
Similar
MEDLINE
...
LILACS
LIS