12/07 Tumor suppressor gene BRCA1 mutations may be twice as common among young African-American breast cancer patients as among those with high-risk Jewish ancestry overall (17.6% versus 8.2%). The same was true in comparison with young white patients (7.2%), although prevalence was lower among black than white patients overall (1.3% versus 2.2%), according to an analysis of the population-based Breast Cancer Family Registry in the Dec. 26 issue of the Journal of the American Medical Association. Thanks to MedpageToday.com July 2006 Consumer alert, At-Home Genetic Tests: A Healthy Dose of Skepticism May Be the Best Prescription. The consumer alert emphasizes that "genetic tests should be performed in a specialized laboratory, and the results should be interpreted by a doctor or trained counselor who understands the value of genetic testing for a particular situation." It also states that "in most cases, genetic testing makes the most sense when it is part of a physical exam that includes a patient's family background and medical history." Additionally, it cautions consumers to "be wary of claims about the benefits these products supposedly offer." In February 2006, the Secretary's Advisory Committee on Genetics, Health, and Society (SACGHS) recommended that FTC and FDA issue a joint statement about genetic tests marketed directly to consumers to help raise public awareness about the issues associated with genetic testing and the importance of careful assessment of such advertisements. Copies of the consumer alert, FTC press release, and SACGHS letter can be found at the following websites: · FTC consumer alert: At-Home Genetic Tests: A Healthy Dose of Skepticism May Be the Best Prescription http://www.ftc.gov/bcp/edu/pubs/consumer/health/hea02.htm A study by Jennifer S. Lee of the Howard Hughes Medical Institute in Bethesda, MD and a multi-center team studied a group of Ashkenazi Jewish women. Up to 2% of women with this ethnicity can carry BRCA 1 or BRCA 2. This study looked at survival. The information about women with these defective genes has changed over time since its discovery. This study looked at survival for relatives who had been diagnosed in previous years. These family members had either breast or ovarian cancer. The study tested 5300 women for threse specific mutations and then interivewed them. Of the 50 women who carried the mutations, 58 of their first degree relatives-meaning mother or sisters, had been diagnosed with breast cancer. An additional 10 women had ovarian cancer. Median survival for those with breast cancer was 16 yeras among the relatives of the carriers of the genes and 18 years among the relatives of the noncarriers. This is not statistically significant in difference. Survival with ovarian cancer did not appear to be affected by BRCA 2. This study was published in the February 3, 1999 issue of the Journal of the National Cancer Institute. UPDATE: 12/03 A new hotline The helpline--1-866-824-RISK (7475)--is a joint project of the Abramson Cancer Center of the University of Pennsylvania and FORCE, an organization that raises awareness about hereditary cancer risks and provides support to high-risk women. All of the volunteers are women with a family history of hereditary breast and ovarian cancer. The volunteers who answer the helpline are not medical experts and will not offer medical advice. Instead, volunteers will refer callers to sources of medical information. They can also provide information on resources, such as genetic testing. |
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