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New Research on BRCA Gene Families

Higher risk for women who test negative for breast cancer gene.

Forty-five percent of women who test positive for  a certain BRCA 2 gene mutation will develop breast cancer. Now, a new study shows even when other women in the same family test negative for the gene, they still have more than four times the risk of breast cancer, as the average women.
 
Researchers say this higher risk is  mainly lmited to BRCA 2 families with a strong history of breast cancer, and other genetic fctors.

The study is published in Cancer Epidemiology, Biomarkers & Prevention.

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