Women with a family history may not be at high risk of developing breast cancer

US researchers said on Monday that just because other family members test positive for the breast cancer gene cannot conclude that women are at higher risk of developing breast cancer. A 2007 study stated that as long as a relative has variants of the BRCA1 or BRCA2 gene cock pump lesbian vibrator , even if he or she tests negative for these genes, a woman's risk of developing breast cancer increased. The results of this study may bring comfort to women in families with high risk of breast cancer. "The results are encouraging and reassuring adult toys for men ," said Dr. Allison Kurian of Stanford University School of Medicine, who published the study in the Journal of Clinical Oncology. The average American woman's lifetime risk of developing breast cancer is approximately 12-13%. About 5-10% of breast cancer cases are genetically related, most of which are caused by mutations in the BRCA1 or BRCA2 genes. Curian's team analyzed data from more than 3,000 families with BRCA1 or BRCA2 mutations in the United States lesbian double dildo , Canada and Australia. They also compared breast cancer prevalence among carriers and non-carriers in families with BRCA1 and BRCA2 mutations. It was found that there was no evidence that non-carriers had an increased risk of developing breast cancer.
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