Abstract:
:Cytochrome P450 1B1 (CYP1B1) is a key P450 enzyme involved in the metabolism of exogenous and endogenous substrates in endocrine-mediated tumors such as prostate cancer. The potential significance of nonsynonymous SNP Leu432Val (rs1056836) as a risk factor in prostate cancer has been extensively studied. The objective of this meta-analysis was to quantitatively summarize the association between CYP1B1 Leu432Val polymorphism and prostate cancer. All eligible studies were searched and acquired from the PubMed and ISI databases. Statistical analysis was performed by using the software STATA 11.0. Ten case-controlled studies from nine eligible publications were identified, which includes 6,668 subjects with 3,221 cases and 3,447 controls. Overall, no significant association was found between the CYP1B1 Leu432Val polymorphism and prostate cancer susceptibility for Val/Val vs Leu/Leu (OR = 1.07; 95% CI: 0.79-1.44; P = 0.67), Leu/Val vs Leu/Leu (OR = 1.05; 95% CI: 0.94-1.17; P = 0.42), Leu/Val + Val/Val vs Leu/Leu (OR = 1.07; 95% CI: 0.91-1.26; P = 0.40) and Val/Val vs Leu/Val + Leu/Leu (OR = 1.11; 95% CI: 0.86-1.44; P = 0.43). However, a higher risk was found among Asians in all genetic models (Val/Val vs Leu/Leu :OR = 2.48, 95% CI: 1.14-5.39, P = 0.02; Leu/Val vs Leu/Leu: OR = 1.40, 95% CI: 1.03-1.89, P = 0.03; Leu/Val + Val/Val vs Leu/Leu: OR = 1.51, 95% CI = 1.14-2.01, P = 0.004; Val/Val vs Leu/Val + Leu/Leu: OR = 2.50, 95% CI = 1.35-4.56, P = 0.004). We were not able to detect any association in the subgroup analysis by source of controls and genotyping method in all genetic models. In conclusion, this meta-analysis provides evidence that CYP1B1 Leu432Val polymorphism is not associated with prostate cancer risk overall with the exception in Asians.
journal_name
Mol Biol Repjournal_title
Molecular biology reportsauthors
Cui L,Dillehay K,Chen W,Shen D,Dong Z,Li Wdoi
10.1007/s11033-012-1579-ysubject
Has Abstractpub_date
2012-07-01 00:00:00pages
7465-71issue
7eissn
0301-4851issn
1573-4978journal_volume
39pub_type
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