New rules on misconduct.
New rules on misconduct.
复制标题
关于不当行为的新规则。
DOI：
10.1126/science.2762812
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发表时间：
1989
期刊：
影响因子：
56.9
通讯作者：
C. Holden
中科院分区：
文献类型：
--
作者：
C. Holden
The long-term use ofestrogen hormones for treating menopausal symptoms may increase a woman's risk of developing breast cancer, according to a new study by Swedish and US researchers. The new findings come just when estrogen use has been escalating because of research indicating that the hormone can protect against osteoporosis and the heart and circulatory problems that may develop after menopause. They thus present women and their physicians with a painful dilemma.The possible risk of developing breast cancer will have to be weighed against the benefits of estrogen use. And so far at least, the experts are coming down on the side of the benefits. For example, Malcolm Pike of the University ofSouthern Califomiain Los Angeles estimates that for every woman who might lose her life to breast cancer because of long-term estrogen use, another seven or eight might be spared from premature death by heart attack or stroke. And in an editorial that appeared with the study results in the 3 August issue of the New England Journal of Medicine, Elizabeth Barrett-Conner of the University of California at San Diego wrote:" In my opinion, the data are not conclusive enough to warrant any immediate change in the way we approach hormone replacement, but they do show the need for additional research." The issue is also somewhat complicated for US women because they generally do not take the same estrogen as the Swedish women do, and no one currently knows whether this makes any difference for their breast cancer risk.
