KNWA and Your Family: BRCA-2 Gene Test

Published 11/28 2013 08:36AM

Updated 12/17 2013 07:28AM

In your KNWA and your family report, women who test negative for the breast cancer gene may still be at increased risk for the disease.
Researchers found women in families with a BRCA-2 mutation, but test negative themselves, are four times more likely to develop breast cancer than the general population.There was no such association found with the BRCA-1 gene, and scientists believe this risk is specific to BRCA-2 families with a strong family history.
They say it's possible these women inherit genetic factors other than the brca gene that increase the odds of breast cancer.

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