Eating lots of bread may increase kidney cancer risk
文章来源: 文章作者: 发布时间:2008-07-06 07:29 字体: [ ]  进入论坛
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  An Italian study that compared the food intake1 of kidney cancer patients to those without the disease reports that a diet high in bread may increase the risk of contracting the deadly ailment2.

  Researchers say people who consume the highest amounts of bread double the risk for kidney malignancy, compared to those eating the smallest amounts.

  But an American expert warned the findings are not based on enough information and more studies should be undertaken.

  “These findings need to be replicated3 and found consistent before any recommendation can be made,” Marji McCullough, a registered dietitian4 and spokeswoman for the American Cancer Society, said in a prepared statement.

  The study's lead author, Francesca Bravi, a researcher at the Mario Negri Institute for Pharmacological Research in Milan, agreed. Her team published the findings in the Oct. 20 online edition of the International Journal of Cancer.

  “Further studies are needed to confirm the link between bread and renal cell [kidney] carcinoma,” she said.

  Bravi's team compared 767 men and women, aged5 24 to 79, with kidney cancer to 1,534 men and women in the same age range who did not have the disease.

  They asked about diet, lifestyle, personal and family medical history and obtained the participants' height and weight so they could compute6 their body-mass index (BMI)。 The participants also answered questions on average weekly intakes7 of 78 food items over the past two years.

  Those who ate the highest amounts of bread —— 28 portions a week —— had nearly two times the risk of kidney cancer as those who ate the lowest number of portions per week, 9, she found.

  A “portion” was defined as 50 grams or 1.7 ounces, the equivalent of a slice or a slice and a half of bread.

  A modest but not statistically8 significant increased risk was found for the highest intakes of pasta and rice. Those with the highest intakes of milk and yogurt had a 1.3 times greater risk for kidney cancer, she found. But high intakes of poultry9, processed meet and vegetables decreased the risk

  McCullough said is was possible that it wasn't the bread consumption that raised the risk of cancer, but something related to it, such as eating a lot of butter with the bread.

  Bravi speculated that the elevation10 in risk linked to high bread, pasta and rice consumption could be due to the blood-sugar raising effects of these foods.

  Eating large quantities of those foods, she said, may affect the process of getting cancer by influencing the level of substances called insulin-like growth factors, which have been implicated11 in cancer.

  “Our study suggests that a diet poor in refined cereals and rich in vegetables may have a favorable role on the risk of renal cell carcinoma,” Bravi said.



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1 intake 44cyQ     
n.吸入,纳入;进气口,入口
参考例句:
  • Reduce your salt intake.减少盐的摄入量。
  • There was a horrified intake of breath from every child.所有的孩子都害怕地倒抽了一口凉气。
2 ailment IV8zf     
n.疾病,小病
参考例句:
  • I don't have even the slightest ailment.我什么毛病也没有。
  • He got timely treatment for his ailment.他的病得到了及时治疗。
3 replicated 08069c56938bbf6ddcc01ee2fd848af5     
复制( replicate的过去式和过去分词 ); 重复; 再造; 再生
参考例句:
  • Later outplant the seedlings in a replicated permanent test plantation. 以后苗木出圃栽植成重复的永久性试验林。
  • The phage has replicated and the donor cells have lysed. 噬菌体已复制和给体细胞已发生裂解。
4 dietitian bvdxT     
n.营养学家
参考例句:
  • You can seek the advice of a nutritionist or dietitian.你可以征求营养师或饮食专家的意见。
  • I have no doubt she would make a good dietitian.毫无疑问她会成为优秀的营养学家。
5 aged 6zWzdI     
adj.年老的,陈年的
参考例句:
  • He had put on weight and aged a little.他胖了,也老点了。
  • He is aged,but his memory is still good.他已年老,然而记忆力还好。
6 compute 7XMyQ     
v./n.计算,估计
参考例句:
  • I compute my losses at 500 dollars.我估计我的损失有五百元。
  • The losses caused by the floods were beyond compute.洪水造成的损失难以估量。
7 intakes 8ef0c0b97d557507433c00f72a6fc6e2     
吸入( intake的名词复数 ); (液体等)进入口; (一定时期内)进入或纳入的人数; (采煤)进风巷道
参考例句:
  • The Tornado jet fighter-bomber has two air intakes. 旋风式喷气轰炸机有两个空气入口。
  • The air intakes to the carburetors were filling up with freezing snow. 汽化器的进气道被积雪封住了。 来自英汉非文学 - 百科语料821
8 statistically Yuxwa     
ad.根据统计数据来看,从统计学的观点来看
参考例句:
  • The sample of building permits is larger and therefore, statistically satisfying. 建筑许可数的样本比较大,所以统计数据更令人满意。
  • The results of each test would have to be statistically independent. 每次试验的结果在统计上必须是独立的。
9 poultry GPQxh     
n.家禽,禽肉
参考例句:
  • 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?
10 elevation bqsxH     
n.高度;海拔;高地;上升;提高
参考例句:
  • The house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。
  • His elevation to the position of General Manager was announced yesterday.昨天宣布他晋升总经理职位。
11 implicated 8443a53107b44913ed0a3f12cadfa423     
adj.密切关联的;牵涉其中的
参考例句:
  • These groups are very strongly implicated in the violence. 这些组织与这起暴力事件有着极大的关联。 来自《简明英汉词典》
  • Having the stolen goods in his possession implicated him in the robbery. 因藏有赃物使他涉有偷盗的嫌疑。 来自《现代汉英综合大词典》
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