论文部分内容阅读
乳腺癌和结肠癌与肥胖症有关。在圣迭戈由美国癌症学会主办的一次科普作家专题讨论会上,研究人员介绍了旨在确定脂肪对癌症的作用以及减肥是否有保护作用的许多研究工作。肥胖症对乳腺癌和结肠癌的作用,在费城威斯塔研究所的David Kritchevsky所进行的动物研究中明显地表现出来。在一项试验中,他允许24只雌性大鼠尽情地吃;其中14只在给予致癌化学物质以后患了乳腺癌。但接受相同致癌化学物质而仅从饮食中获得第一组所消耗的60％热量的24只大鼠,没有一只患乳腺肿瘤。
Breast cancer and colon cancer are associated with obesity. At a science writer’s symposium run by the American Cancer Society in San Diego, the researchers introduced many research efforts aimed at determining the role of fat in cancer and the protective effects of weight loss. The effects of obesity on breast and colon cancer are evident in animal studies conducted by David Kritchevsky at the Wista’s Institute in Philadelphia. In one trial, he allowed 24 female rats to eat heartily; 14 of them developed breast cancer after giving carcinogenic chemicals. However, none of the 24 rats receiving the same carcinogenic chemical and only 60% of the calories consumed by the first group from the diet did not have a breast tumor.