Association analysis of polymorphisms of metabolizing enzyme genes with chronic benzene poisoning based on logistic regression and multifactor dimensionality reduction / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
; (12): 481-486, 2011.
Article
en Zh
| WPRIM
| ID: wpr-282569
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To explore the association of polymorphisms of metabolizing enzyme genes with chronic benzene poisoning (CBP) comprehensively by case-control design.</p><p><b>METHODS</b>152 CBP patients and 152 workers occupationally exposed to benzene without poisoning manifestations were investigated. 30 single nucleotide polymorphisms (SNPs) in 13 genes such as CYP2E1 were tested by PCR-RFLP, sequencing approaches. Logistic regression model was used to detect main effects and 2-order interaction effects of gene and/or environment. Multifactor dimensionality reduction (MDR) was used to detect high-order gene-gene or gene-environment interactions.</p><p><b>RESULTS</b>Based on logistic regression, the main effects of GSTP1 rs947894, EPHX1 rs1051740, CYP1A1 rs4646903, CYP2D6 rs1065852 and rs1135840 were found to be significant (P < 0.05) while the confounding factors of sex, cigarette smoking, alcohol consumption and the intensity of benzene exposure were controlled. EPHX1 rs1051740 might be associated with CBP (P = 0.06). There existed 3 types of interactions were as followed: interactions of GSTP1 rs947894 with alcohol consumption, CYP2E1 rs3813867 with EPHX1 rs3738047, EPHX1 rs3738047 with alcohol consumption(P < 0.05), while the main effects of CYP2E1 rs3813867 and EPHX1 rs3738047 were not significant (P > 0.05). The other SNPs did not show any significant associations with CBP. According to MDR, a 3-order interaction with the strongest combined effect was found, i.e. the 3-factor combination of CYP1A1 rs4646903, CYP2D6 rs1065852 and CYP2D6 rs1135840.</p><p><b>CONCLUSION</b>Gene-gene, gene-environment interactions are important mechanism to genetic susceptibility of CBP.</p>
Texto completo:
1
Base de datos:
WPRIM
Asunto principal:
Intoxicación
/
Benceno
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Estudios de Casos y Controles
/
Modelos Logísticos
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Exposición Profesional
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Citocromo P-450 CYP1A1
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Citocromo P-450 CYP2D6
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Citocromo P-450 CYP2E1
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Predisposición Genética a la Enfermedad
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Polimorfismo de Nucleótido Simple
Tipo de estudio:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
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Female
/
Humans
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Male
Idioma:
Zh
Revista:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Año:
2011
Tipo del documento:
Article