在研究癌的化学预防中,寻找拮抗化学致癌物的物质,越来越受到重视。我们曾报道茶叶及不同品种的绿茶对黄曲霉毒素B_1(AFB_1)致肝癌作用有显著的抑制效果,但在这些研究中,绿茶用量均为5％,为找出绿茶的最低有效剂量,选择了3种不同浓度的绿茶作实验研究,并用茶叶渣作对比实验,现报告如下。 In the study of cancer chemoprevention, the search for substances that antagonize chemical carcinogens has received increasing attention. We have reported that tea and different varieties of green tea have significant inhibitory effects on the liver cancer caused by aflatoxin B 1 (AFB 1 ). However, in these studies, the amount of green tea used was 5%. We chose the lowest effective dose of green tea. Three different concentrations of green tea were used as experimental studies and tea slag was used as a comparative experiment. The report is as follows.