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Wednesday, September 26, 2012

Another gene variant to male breast cancer

Researchers report that they've identified another genetic variation that appears connected to male breast cancer, a rare condition that kills several hundred men in the United States each year.
Male breast cancer is about 100 times less common than female breast cancer, according to the American Cancer Society. It estimates that this year breast cancer will be diagnosed in about 2,190 men in the United States and will kill about 410 men.
The prognosis for men with breast cancer is similar to that for women with breast cancer, although less is known about the disease in men. A study released last year also found that men are diagnosed on average at an older age (70) than women (62). In the new study, researchers examined the DNA of 823 men with breast cancer and 2,795 similar men without the disease. They then attempted to validate their results by looking at the genes of 438 men with the disease and 474 similar men without it.
Orr said his team found that a variation in a gene known as RAD51B was found in 20 percent of the men with breast cancer, but only 15 percent of those without it. The variation has also been linked to female breast cancer.
The findings add to previous research that has linked mutations in a gene known as BRCA2 to a higher rate of breast cancer in men. Mutations in the gene greatly boost the risk of breast cancer in women.
source:http://medicalxpress.com/news/2012-09-links-gene-variant-male-breast.html

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