Word: estrogen
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Dates: during 1980-1989
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...study, conducted in Sweden, involved 23,244 women who were taking various types of estrogen, one of the main female sex hormones, after menopause; a third of them were also on progestin, an artificial form of the hormone progesterone. The researchers compared these women with others who had not taken hormones. The results: after nine years the women who took a kind of estrogen called estradiol had about twice the breast-cancer rate of those who were not on replacement therapy. The women on estrogen and progestin had a higher rate -- about four times as many cases of breast cancer...
...Estrogen came into favor many years ago because it helped prevent osteoporosis and appeared to guard against heart disease. But it was discovered that estrogen increased the risk of uterine cancer. To lower the odds of contracting uterine cancer, many doctors added progestin to the treatment, and it was hoped that the drug would also help reduce any risk of breast cancer associated with estrogen alone. The drawback to progestin seemed to be that it reduces some of the benefits of estrogen, in particular the apparent protection against heart disease. Now the possibility of a breast- cancer risk has further...
...what is a woman to do? In an editorial published along with the Swedish study in the New England Journal, Dr. Elizabeth Barrett-Connor of the University of California, San Diego, argues that the "benefits of estrogen seem strongly established. In my opinion, the data are not conclusive enough to warrant any immediate change in the way we approach hormone replacement." Dr. I. Craig Henderson of the Dana-Farber Cancer Institute in Boston notes that estradiol, the estrogen implicated in the Swedish report, is not the same as the estrogens most commonly used in the U.S. "While women should...
...Estrogen-based drugs intended to ease the toll of menopause are linked to breast cancer. -- A new study shows that AZT can slow the onset of AIDS...
...Abortions were legally practiced during revolutionary times," she said. "The only major innovation has been the estrogen-based birth control pill...