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A meta and pooled analysis of published and unpublished case-control studies was performed to evaluate the association of CYP17 (rs743572) and CYP3A4 (rs2740574) polymorphisms and prostate cancer (PCa) in men from the USA, Caribbean, and Africa. Eight publications (seven studies) and two unpublished studies for CYP17 included 1,580 subjects (559 cases and 1,021 controls) and eleven publications and three unpublished studies for CYP3A4 included 3,400 subjects (1,429 cases and 1,971 controls). Overall, the CYP17 heterozygous and homozygous variants were not associated with PCa, but they confer a 60% increased risk of PCa in a sub-group analysis restricted to African-American men (T/C + C/C, OR: 1.6, 95% CI: 1.1-2.4). No associations were observed for CYP3A4, overall and in stratified analyses for African-Americans and Africans. The pooled analysis suggests that after adjusting for study, age, PSA, and family history of PCa, CYP17 was associated with PCa for men of African ancestry (Adjusted OR: 3.5, 95% CI: 1.2-10.0). Our findings suggest that genetic factors involved in the androgen pathway play a role in PCa risk among men of African ancestry. Copyright © 2012 Wiley Periodicals, Inc.


Emanuela Taioli, Vestra Sears, Alexis Watson, Rafael E Flores-Obando, Maria D Jackson, Flora A Ukoli, Ilce M de Syllos Cólus, Pedro Fernandez, Norma McFarlane-Anderson, Elaine A Ostrander, Iara S Rodrigues, Janet L Stanford, Jack A Taylor, Marshall Tulloch-Reid, Camille C R Ragin. Polymorphisms in CYP17 and CYP3A4 and prostate cancer in men of African descent. The Prostate. 2013 May;73(6):668-76

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PMID: 23129512

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