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Study ties new gene to major breast cancer risk
Sacramento Bee

It’s long been known that faulty BRCA genes greatly raise the risk for breast cancer. Now scientists say a more recently identified, less common gene can do the same.

Mutations in the gene can make breast cancer up to nine times more likely to develop, an international team of researchers reports in this week’s New England Journal of Medicine.

About 5 to 10 percent of breast cancers are thought to be due to bad BRCA1 or BRCA2 genes.

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