benefits of green tea:cancer prevention:green tea and liver cancer prevention

Green tea constituent (-)-epigallocatechin-3-gallate inhibits Hep G2 cell proliferation and induces apoptosis through p53-dependent and Fas-mediated pathways
Source: J Biomed Sci. 2003 Mar-Apr;10(2):219-27
	Experiments of effects of green tea component EGCG on human liver cancer cell line Hep G2 found: EGCG inhibited the proliferation of Hep G2. Suggest a mechanism for benefit of green tea in liver cancer prevention.

A case-control study on drinking green tea and decreasing risk of cancers in the alimentary canal among cigarette smokers and alcohol drinkers
Source: Zhonghua Liu Xing Bing Xue Za Zhi (Chinese Journal of Epidemiology). 2003 Mar;24(3):192-5
	A population based case-control study on benefit of green tea in prevention of gastric cancer, liver cancer, esophageal cancer among alcohol drinkers or cigarette smoker. Cancer cases: stomach - 206, liver - 204, esophageal - 218. Found: among alcohol drinkers, green tea drinking decreased risk of cancers: stomach - 81%, liver - 78%, esophageal - 39%; among cigarette smokers: stomach - 16%, liver - 43%, esophageal - 31%.(Article in Chinese)