According to a study published in the American Journal of Human Genetics, mutations in a gene called XRCC2 cause increased breast cancer risk. The study looked at families that have a history of the disease but do not have mutations in the previously known breast cancer susceptibility genes. Many breast cancer cases appear in families with a weak history of the disease. The research studied a population with a weaker family history and coincidentally, a very rare gene mutation. Using a...
↧
