title: The association between ERCC2 Asp312Asn polymorphism and breast cancer risk: a meta-analysis involving 22,766 subjects.
abstract: To date, many publications discussed the correlation between ERCC2 Asp312Asn polymorphism and breast cancer risk. However, the results were not unanimous. In order to derive a more precise conclusion, a meta-analysis was performed in this study by searching Medline, PubMed, and ISI Web of Knowledge databases. Finally, 17 studies including 12,019 cases and 10,747 controls were collected for this meta-analysis. The strength of association between ERCC2 Asp312Asn polymorphism and breast cancer risk was assessed by calculating crude ORs with 95% CIs. Overall, no significant associations between ERCC2 Asp312Asn polymorphism and breast cancer susceptibility were found. In the stratified analysis by ethnicity, significant associations were observed for Asn/Asn versus Asp/Asp (OR = 0.55; 95% CI 0.32-0.96) and Asn/Asn versus Asn/Asp + Asp/Asp (OR = 0.53; 95% CI 0.32-0.90) in Asians. In the stratified analysis by study design, significant associations were found for Asn/Asn versus Asp/Asp (OR = 0.79; 95% CI 0.64-0.98) and Asn/Asn versus Asn/Asp + Asp/Asp (OR = 0.82; 95% CI 0.68-0.99) in population-based studies. In conclusion, this meta-analysis provides an evidence that ERCC2 312Asn allele may have a protective effect for breast cancer development in Asians.
authors.affiliation: State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai, People's Republic of China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yao
authors.forename: Li-Xin
authors.initials: LX
authors.lastname: Qiu
authors.forename: Lu
authors.initials: L
authors.lastname: Yu
authors.forename: Zhen
authors.initials: Z
authors.lastname: Yang
authors.forename: Xia-Jia
authors.initials: XJ
authors.lastname: Yu
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhong
authors.forename: Xi-Chun
authors.initials: XC
authors.lastname: Hu
authors.forename: Long
authors.initials: L
authors.lastname: Yu
mesh_terms: D044466:Asian People / Q000235:genetics; D001943:Breast Neoplasms / Q000235:genetics*; D005260:Female; D020022:Genetic Predisposition to Disease / Q000235:genetics*; D006801:Humans; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D012307:Risk Factors; D051759:Xeroderma Pigmentosum Group D Protein / Q000235:genetics*
chemical_list: D051759:Xeroderma Pigmentosum Group D Protein; C497292:ERCC2 protein, human