2007年VOA标准英语-Study: Western Diet Increases Risk of Colon Can
时间：2019-01-30 作者：英语课 分类：2007年VOA标准英语（八月）
Washington
14 August 2007
The cells in certain cancers, like breast cancer and colon cancer, have been shown in labs to start with a high level of genetic instability and then in later stages this level goes down
A new study has found that people recovering from colon cancer significantly increase their risk of recurrence 3 or death by eating a so-called Western diet, high in fat and processed foods. But VOA's Jessica Berman reports the findings are not definitive 4.
In addition to setting the stage for the development of colon cancer, scientists have now found that a diet high in red meat and processed foods can lead to relapse or death in colon cancer patients who are undergoing treatment.
Researcher Jeffrey Meyerhardt of the Dana-Farber Cancer Institute in Boston, Massachusetts and colleagues looked at the impact of two distinct diet patterns, one healthy and one not, in a group of one-thousand patients with stage-three colon cancer, cancer that has spread to the lymph nodes.
The patients were part of a clinical trial of people receiving chemotherapy in the six months after surgery, and they kept detailed 5 diaries of what they ate during this time. Those who reported eating a healthy diet consumed large amounts of fruits, vegetables, poultry 6, and fish. Those who ate the so-called Western-style diet frequently consumed red meat, fat, refined grains and dessert.
Five years later, 324 patients had a recurrence of cancer and 223 patients had died. Investigators 7 found that those in the Western group with the worst diet were three times more likely to have a recurrence and die of colon cancer than those in the Western group who ate less junk food.
"People who have a higher Western pattern diet have an increased risk for recurrence, but that does not mean people who have very little of a Western pattern diet have no chance for recurrence," Meyerhardt said. "It is just relatively 8, it is an additional thing to improve people with colon cancer's outcomes."
In contrast, among those patients who ate a healthy diet, there was no increased risk of recurrence and death.
Meyerhardt says the study makes clear what the culprit is:
"It is not really increasing the amount of fruits and vegetables, but really trying to reduce the amount of red meat intake 9 and fatty foods and sugary, 'desserty' foods...," Meyerhardt said. "
The study on diet and colon cancer is published this week in the Journal of the American Medical Association.
- Here,too,the colon must be followed by a dash.这里也是一样，应当在冒号后加破折号。
- The colon is the locus of a large concentration of bacteria.结肠是大浓度的细菌所在地。
- It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
- Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
- More care in the future will prevent recurrence of the mistake.将来的小心可防止错误的重现。
- He was aware of the possibility of a recurrence of his illness.他知道他的病有可能复发。
- This book is the definitive guide to world cuisine.这本书是世界美食的权威指南。
- No one has come up with a definitive answer as to why this should be so.至于为什么该这样，还没有人给出明确的答复。
- He had made a detailed study of the terrain.他对地形作了缜密的研究。
- A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
- There is not much poultry in the shops. 商店里禽肉不太多。
- What do you feed the poultry on? 你们用什么饲料喂养家禽?
- This memo could be the smoking gun that investigators have been looking for. 这份备忘录可能是调查人员一直在寻找的证据。
- The team consisted of six investigators and two secretaries. 这个团队由六个调查人员和两个秘书组成。 来自《简明英汉词典》
- The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
- The operation was relatively painless.手术相对来说不痛。