Green tea diet was given to the rats either before, during or after AFB_1 exposure in order to test the time-effect of green tea on AFB_1-induced hepatocarcinogenesis for short-term model in vivo experiments.

• 本研究应用我室建立的AFB_1致大鼠肝癌作用短期体内实验模型；探讨绿茶在动物摄入AFB_1前、中、后等不同时期；对AFB_1致肝癌作用的影响.