Genetic Variants at 1p11.2 and Breast Cancer Risk: A Two-Stage Study in Chinese Women
2011

Genetic Variants at 1p11.2 and Breast Cancer Risk in Chinese Women

Sample size: 3659 publication Evidence: moderate

Author Information

Author(s): Jiang Yue, Shen Hao, Liu Xiao'an, Dai Juncheng, Jin Guangfu, Qin Zhenzhen, Chen Jiaping, Wang Shui, Wang Xinru, Hu Zhibin, Shen Hongbing

Primary Institution: Nanjing Medical University

Hypothesis

Are there genetic variants at 1p11.2 associated with breast cancer risk in Chinese women?

Conclusion

The study found that the SNP rs2580520 is associated with an increased risk of breast cancer in Chinese women, while rs11249433 showed no significant association.

Supporting Evidence

  • The study included 1792 breast cancer cases and 1867 controls.
  • SNP rs2580520 was significantly associated with breast cancer risk in a recessive genetic model.
  • No significant association was found for SNP rs11249433 in the Chinese population.

Takeaway

Scientists looked at genes to see if they could find out why some Chinese women get breast cancer. They found one gene that seems to make it more likely.

Methodology

A two-stage fine-mapping study with 1792 breast cancer cases and 1867 controls was conducted, using SNP genotyping.

Limitations

The study had a relatively low power due to the limited sample size and low minor allele frequency of the rs11249433 SNP.

Participant Demographics

Participants were genetically unrelated ethnic Han Chinese women from Nanjing City and surrounding regions.

Statistical Information

P-Value

0.005

Confidence Interval

1.16–2.36

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0021563

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