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【编译】澳中科学家研究: 番茄红素和类胡萝卜素
纽约(路透社健康) - 饮食番茄红素和其它类胡萝卜素也许保护免受前列腺癌, 澳大利亚和中国研究人员发表在国际肿瘤学杂志上的研究报告得出以上结论。 尽管与以往的研究结果相似, 但这是第一次在亚裔人口中报告这样研究结果, 来自澳大利亚珀斯的Curtin 技术大学Dr. Andy H. 李告诉的路透社健康报道组。
研究结果证实了番茄红素作为一个保护性生物制剂可以对某些类型癌症起防护作用.
李博士与他的同事是在中国东南部地区进行了涉及130 名前列腺癌患者的追踪研究, 并且与274 非癌症者对照组进行比较。"
参加者被采访询问了关于食物消耗量和各种各样的其它事。 在考虑折合年龄, 总的脂肪和热量摄取量和家史等因素后, 饮食习惯看上去对发生前列腺癌的可能性有影响。
前列腺癌风险随着番茄红素, 阿尔法胡萝卜素, β- 胡萝卜素和其它类胡萝卜素耗量的增加而下降。 经常消费含有这些成份的食物(包括蕃茄, 菠菜和柑桔)同时也与降低得其他癌症的风险有联系。 研究人员认为, "在中国男人中, 进食蔬菜和水果中含有的类胡萝卜素的量,也许与前列腺癌癌变的发生率是成反比的。"
评论
前列腺癌在西方男人中很普遍, 可能与生活饮食及遗传有一定关系. 既然中西方人种都显示, 番茄红素和其它类胡萝卜素保护免受前列腺癌困扰, 是否我们应当适当多吃富含这些物质的新鲜水果或补充这些物质的片剂?
Carotenoids May Ward Off Prostate Cancer
NEW YORK (Reuters Health) - Dietary lycopene and other carotenoids may protect against prostate cancer, Australian and Chinese researchers report. This is the first time such findings have been reported in an Asian population, investigator Dr. Andy H. Lee told Reuters Health.
The findings confirm those of other studies that have identified lycopene as a protective agent against some types of cancers.
Lee, of Curtin University of Technology, Perth, and colleagues conducted a study in southeast China involving 130 patients with prostate cancer, and a comparison group of 274 cancer-free "controls."
The participants were interviewed about food consumption and a variety of other matters. After factoring in age, total fat and caloric intake, as well as family history, diet appeared to have an influence on the odds of developing prostate cancer.
The risk of prostate cancer declined with increasing consumption of lycopene, alpha-carotene, beta-carotene and other carotenoids the investigators report in the International Journal of Cancer. Consumption of foods including tomatoes, spinach and citrus fruits was also associated with a reduced cancer risk.
The researchers conclude that "carotenoids in vegetables and fruits may be inversely related to prostate carcinogenesis among Chinese men."
http://story.news.yahoo.com/news?tmpl=story&cid=571&ncid=751&e=11&u=/nm/20050224/hl_nm/prostate_dc 推测还是和抗氧化作用有关，应该与维生素C，维生素E等抗氧化剂进行比较看看是否有显著的差异。 [标签:content1][标签:content2]
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作者:admin@医学,生命科学 2011-05-23 17:14
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