(GreenMedInfo) A powerful new Lancet study reveals that the so-called breast cancer susceptibility genes -- BRCA 1 and BRCA 2 -- do not, in fact, cause breast cancer. Jolie's prophylactic mastectomy, for instance, was for naught.
"The study, published in The Lancet Oncology, found 12% of 2,733 women aged 18 to 40 treated for breast cancer at 127 hospitals across the UK between 2000 and 2008 had a BRCA mutation.
The women's medical records were tracked for up to 10 years.
"During this time, 651 of the women died from breast cancer, and those with the BRCA mutation were equally likely to have survived at the two-, five- and 10-year mark as those without the genetic mutation.
This was not affected by the women's body mass index or ethnicity.
About a third of those with the BRCA mutation had a double mastectomy to remove both breasts after being diagnosed with cancer. This surgery did not appear to improve their chances of survival at the 10-year mark.”