Word: breast
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...Breast...
...wondering what they can do on their own to limit their kids' exposure to phthalates and bisphenol A (BPA), so-called "endocrine disruptors" which can interfere with hormones that regulate gender. Animal and human studies have linked these substances to a broad swath of health problems, inlcuding prostate and breast cancer, and altered genital development. "Virtually all of us are regularly exposed to low levels of phthalates and BPA," says Shanna Swan, a University of Rochester epidemiologist and an expert on endocrine disruptors. "The risks from these products have not been firmly established. But there are some measures...
...question, however, is what information. Already the two sides of the abortion wars argue over state laws requiring doctors to warn of a heightened risk of breast cancer linked to abortion, despite something like a medical consensus that this link has not been proven. In this case there is dispute among researchers about when a fetus's nervous system and brain are mature enough to allow for pain, with some saying this occurs around 26 weeks, not the 20 weeks the bill stipulates. (An article in the Journal of the American Medical Association suggested pain was unlikely before 29 weeks...
...women with BRCA-1, the naturally occurring female hormone progesterone speeds the proliferation of mammary cells. "If we block the progesterone pathway using an antiprogesterone, it could prevent breast cancer," says Eva Lee, lead author of the study. That's exactly what mifepristone did for the experiment's mice, all of which had the BRCA-1 gene. At age 1, none of those treated with mifepristone had developed tumors. But all the untreated mice had tumors by the time they were 8 months...
...reproducible in humans, the results of the study could pave the way toward preventing these cancers in women who have genetic predispositions. "Today women are advised to have frequent breast examinations and mammograms," Lee says. "But I hope that one day, if we have a more specific antiprogesterone, that we can use drugs for prevention...