To be showed that DR significantly inhibited aflatoxin B 1(AFB 1) DNA major adduct and 2 acetylaminofluorene (2 AAF) DNA major adduct (AF ?C? 8 dG) formation as well as carcinogen induced strand breaks.

• 限量饮食减少小鼠肝中黄曲霉毒素B1（AFB1）?和2?乙基氨基芴（2?AAF）?DNA加合物（AF?C8?dG）的生成，同时也减少致癌物导致的DNA链断裂；