Some versions of these genes increase the risk of breast cancer, and Myriad sells a test that detects these versions.

这些基因的变异增加了罹患乳腺癌的风险，麦利亚德通过这一专利出售基因检测服务。

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In a small but successful study, a prototype breath test was able not only to detect cancer, but also to differentiate between the four most common forms of cancer: lung, bowel, breast and prostate.

在一项实验中，一种原型呼吸检测仪不仅检测出了癌症，还能区分其常见的四种类型：肺癌，肠癌，乳腺癌和前列腺癌。实验虽小，却很成功。

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The price has not been set; the breast cancer test sells for nearly $4, 000.

价格尚未最终敲定；乳腺癌检测方法现价接近4，000美元。

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So tens or hundreds of millions of dollars would go into a study like this by the time it was completed, money that could have been used for other things, to test whether eating a low fat diet would reduce risk for breast cancer.

数以百万计的美元,投入到这样的研究,当研究结束时,本可以用来做其他事情的钱,被用来检测是否低脂膳食,可降低患乳腺癌风险

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The breast cancer test looks for changes, or mutations, in two genes.

FORBES: Myriad's Gene Discovery Won't Pay Off--Yet

At present, based on animal models where human breast cancer tumors are grown in animals, this test detects breast cancers with 100% specificity, high sensitivity, and good localization.

FORBES: Breast Exams: Mammography Is Not The Only Game In Town

Genomic Health sells a test for breast cancer patients that predicts which patients are likely to relapse after surgery and thus need chemotherapy.

FORBES: Gene Tests That Predict When You Will Die