Abstract
Objective To investigate the association between functional polymorphism IVS8-poly (T) in cystic fibrosis transmembrane conductance regulator (CFTR) gene and prostate cancer risk.Methods A population-based case-control study was conducted including 230 prostate cancer patients and 230 agematched controls.PCR-STRP was used to analysis the IVS8-poly (T) tract in CFTR gene.Results The prevalences of the low expression allele,the IVS8-5T,in prostate cancer patients and controls were 1.52 ％ (7/460) and 5.22 ％ (24/460),respectively (x2 =12.489,P =0.002).Logistic regression analysis confirmed the 5T/7T genotype was in protective association with prostate cancer risk (OR =0.232,P =0.003,95 ％ CI0.090-0.599).Conclusion The low expression CFTR IVS8-5T allele contributes to a reduced risk of prostate cancer in Chinese Han population,and may be a protective factor against prostate cancer. Key words: Prostate neoplasms; CFTR; Polymorphism
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