[绿茶对胃癌、肝癌和食管癌的保护作用研究]
[Study on the protective effect of green tea on gastric, liver and esophageal cancers].
作者信息
Mu Li-na, Zhou Xue-fu, Ding Bao-guo, Wang Ru-hong, Zhang Zuo-feng, Jiang Qing-wu, Yu Shun-zhang
机构信息
School of Public Health, Fudan University, Shanghai 200032, China.
出版信息
Zhonghua Yu Fang Yi Xue Za Zhi. 2003 May;37(3):171-3.
OBJECTIVE
To assess the protective effect of drinking green tea on the development of gastric, liver and esophageal cancers.
METHODS
A population based study was conducted in Taixing, Jiangsu province, including 206, 204, 218 cases, respectively, and 415 population controls.
RESULTS
Green tea decreased the development of gastric cancer risk by 40%. Dose-response relationships were observed between the length of time, concentration and quantity of green tea drinking and its protective effects on gastric cancer. For individuals who drink green tea for more than 250 g per month, the risk of gastric cancer reduced about 60%. Green tea might have protective effect on liver cancer. However, no protective effect of green tea was observed on esophageal cancer.
CONCLUSION
Green tea drinking might be a protective factor for gastric cancer. However, the protective effects of green tea on liver and esophageal cancer were not obvious.
目的
评估饮用绿茶对胃癌、肝癌和食管癌发生的保护作用。
方法
在江苏省泰兴市开展了一项基于人群的研究，分别纳入206例、204例、218例病例以及415名人群对照。
结果
绿茶使胃癌发生风险降低了40%。观察到饮用绿茶的时长、浓度和量与其对胃癌的保护作用之间存在剂量反应关系。对于每月饮用绿茶超过250克的个体，胃癌风险降低约60%。绿茶可能对肝癌有保护作用。然而，未观察到绿茶对食管癌有保护作用。
结论
饮用绿茶可能是胃癌的一个保护因素。然而，绿茶对肝癌和食管癌的保护作用不明显。
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