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Genetic variants in insulin-like growth factor binding protein-3 are associated with prostate cancer susceptibility in Eastern Chinese Han men.


ABSTRACT:

Background

Growing evidence has indicated that insulin-like growth factor binding protein-3 (IGFBP-3) polymorphisms are associated with altered risk of prostate cancer (PCa). However, few studies have been conducted in Chinese population to validate this association.

Materials and methods

Herein, we examined the association between genetic variants in the IGFBP-3 gene and PCa risk in the Chinese Han population based on a genome-wide association study (1,417 cases and 1,008 controls), and replicated three genetic variants loci in an independent case-control study (1,755 cases and 1,523 controls) using Sequenom platform. Logistic regression analyses were performed to estimate odds ratios (ORs) and 95% confidence intervals (95% CIs).

Results

We found that in the discovery stage, rs9691259 (OR =0.691, 95% CI: 0.587-0.814, P<0.001) and rs6950179 (OR =1.420, 95% CI: 1.201-1.677, P<0.001) were significantly associated with PCa risk, whereas rs2854744 showed a marginal association with PCa risk. In the replication stage, the association between rs9691259 and rs6950179 and PCa risk was not replicated, whereas rs2854744 conferred a significant association with PCa risk (OR =1.399, 95% CI: 1.010-1.937, P=0.043). After combining the two stages, we found that rs9691259, rs6950179, and rs2854744 were all significantly associated with PCa risk.

Conclusion

This study suggests that IGFBP-3 genetic variants are significantly associated with PCa risk in the Chinese population.

SUBMITTER: Zhang G 

PROVIDER: S-EPMC4694676 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Publications

Genetic variants in insulin-like growth factor binding protein-3 are associated with prostate cancer susceptibility in Eastern Chinese Han men.

Zhang Guiming G   Zhu Yao Y   Liu Fang F   Gu Chengyuan C   Chen Haitao H   Xu Jianfeng J   Ye Dingwei D  

OncoTargets and therapy 20151222


<h4>Background</h4>Growing evidence has indicated that insulin-like growth factor binding protein-3 (IGFBP-3) polymorphisms are associated with altered risk of prostate cancer (PCa). However, few studies have been conducted in Chinese population to validate this association.<h4>Materials and methods</h4>Herein, we examined the association between genetic variants in the IGFBP-3 gene and PCa risk in the Chinese Han population based on a genome-wide association study (1,417 cases and 1,008 control  ...[more]

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