美国科学家的一项最新研究显示，女性常喝咖啡和饮茶能降低罹患子宫内膜癌的风险。
美国罗斯韦尔·帕克癌症研究所科学家在4月刊的美国《国际癌症杂志》（International Journal of Cancer）上发表报告说，他们对近1100名妇女进行跟踪调查后发现，常喝咖啡和饮茶的人罹患子宫内膜癌的风险要比未饮用者低，而且喝咖啡和饮茶的次数越多，患这种癌症的风险就越小。
报告说，每天喝咖啡或饮茶4杯以上者，患子宫内膜癌的风险要比未饮用者低约50％。平均每天饮茶或者喝咖啡2杯者，患这种癌症的风险要比未饮用者分别低44％和29％。
报告说，至于茶和咖啡为何能起到降低患子宫内膜癌风险的作用，仍需进一步进行研究。不过参与研究的科学家麦卡恩说，他们的研究发现，饮用不含咖啡因的咖啡与降低患子宫内膜癌风险之间没有任何关系，因此就咖啡来说，可能是咖啡因在预防子宫内膜癌方面发挥了某种作用。
子宫内膜癌为女性常见的恶性肿瘤之一，其发病率仅次于乳腺癌和宫颈癌。（生物谷Bioon.com）
生物谷推荐原始出处：
International Journal of Cancer，DOI:10.1002/ijc.24125 ，Susan E. McCann，Michael Yeh
Higher regular coffee and tea consumption is associated with reduced endometrial cancer risk
Susan E. McCann 1 *, Michael Yeh 2, Kerry Rodabaugh 3, Kirsten B. Moysich 1
1Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY
2Department of Social and Preventive Medicine, University at Buffalo, Buffalo, NY
3Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, NY
*Correspondence to Susan E. McCann, Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
ABSTRACT
Several studies have investigated the associations between diet and endometrial cancer, but few have focused specifically on coffee and tea. In a hospital-based case-control study, we examined the associations between endometrial cancer risk and usual consumption of coffee, decaffeinated coffee, and black tea among 541 women with endometrial cancer and 541 women with an intact uterus but without a cancer diagnosis seen at Roswell Park Cancer Institute (Buffalo, New York) between 1982 and 1998. Daily frequency of consumption of coffee, decaffeinated coffee, and black tea in the few years prior to diagnosis in cases and questionnaire completion in controls was assessed with a self-administered epidemiologic questionnaire and categorized as none, 0.5 cups/d, 1-2 cups/d and >2 cups/d. Odds ratios (OR) and 95% confidence intervals (CI) for each category referent to nondrinkers were estimated with unconditional logistic regression adjusting for age, endometrial cancer risk factors and each beverage mutually adjusted for other beverages. Compared to nondrinkers, we observed a nonsignificant negative association with endometrial cancer risk among women who reported >2 cups/d regular coffee (OR 0.71, 95% CI 0.49-1.03), a significant inverse association with >2 cups/d black tea (OR 0.56, 95% CI 0.35-0.90) and a significant inverse association with >4 cups/d combined coffee and tea consumption (OR 0.47, 95% CI 0.28-0.80). These findings suggest coffee and tea may be important in reducing endometrial cancer risk. ? 2008 Wiley-Liss, Inc.
