VOA慢速英语 2007 0425a
时间：2018-12-15 作者：英语课 分类：VOA慢速英语2007年（四）月
This is the VOA Special English Health Report.
Last year, researchers reported that breast cancer rates in the United States dropped in two thousand three. That was after about twenty years of rising. Many experts linked the drop to a sharp reduction in the use of hormone 1 replacement 2 therapy for older women.
The researchers found that breast cancer rates dropped by almost seven percent between two thousand two and two thousand three. Now, they have just reported that the decreased rates were also present in two thousand four.
Breast cancer rates were at their lowest level since about nineteen eighty-seven, they say. But they also say that in two thousand four there was little additional decrease.
The study found that the drop was mostly in women age fifty to sixty-nine. And it was mostly in the kind of breast cancer fed by estrogen. Estrogen is one of the hormones 3 given to women in hormone replacement therapy, or HRT.
The use of HRT began to drop soon after a major study appeared in two thousand two. The Women's Health Initiative study found that the therapy did not protect against heart disease, as had been thought. Instead, it found that hormone replacement increased the risk for some kinds of cancer, as well as heart attacks and other problems.
The use of hormone replacement therapy dropped almost forty percent soon after that report appeared.
The latest findings about breast cancer rates appeared last week in the New England Journal of Medicine. The researchers used information gathered by the National Cancer Institute, one of the National Institutes of Health.
Peter Radvin and Donald Berry of the University of Texas M.D. Anderson Cancer Center led the research. Doctor Radvin notes that the kind of study they did cannot prove that hormone replacement therapy causes breast cancer.
And both researchers say they are not suggesting that all women stop the therapy. Doctor Radvin says he will continue to advise his patients to use the lowest strength of hormones for the shortest time possible.
Critics of the study include Wyeth Pharmaceuticals 4, a maker 5 of hormone replacements 6. One question, it says, is why breast cancer rates leveled off in two thousand four even though use of the therapy continued to drop. The company says the reduction in breast cancer rates could have been the result of something unrelated to the drugs.
And that’s the Special English Health Report, written by Caty Weaver 7. I’m Barbara Klein.
- Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
- This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
- We are hard put to find a replacement for our assistant.我们很难找到一个人来代替我们的助手。
- They put all the students through the replacement examination.他们让所有的学生参加分班考试。
- the development of new pharmaceuticals 新药的开发
- The companies are pouring trillions of yen into biotechnology research,especially for pharmaceuticals and new seeds. 这些公司将大量资金投入生物工艺学研究，尤其是药品和新种子方面。 来自《简明英汉词典》
- He is a trouble maker，You must be distant with him.他是个捣蛋鬼，你不要跟他在一起。
- A cabinet maker must be a master craftsman.家具木工必须是技艺高超的手艺人。
- They infiltrated behind the lines so as to annoy the emery replacements. 他们渗透敌后以便骚扰敌军的调度。 来自辞典例句
- For oil replacements, cheap suddenly looks less of a problem. 对于石油的替代品来说，价格变得无足轻重了。 来自互联网