近年来,随着环境中化学致癌物质的增加,人类癌症发病率明显上升。不仅对食品附加剂、各种医药品,而且对农药、接触食品的用具、包装材料等都要求毒理鉴定。因此,在毒理工作中,如仍用常规动物致癌实验作致癌性鉴定就远远不能满 In recent years, with the increase of chemical carcinogens in the environment, the incidence of human cancer has obviously increased. Not only food additives, all kinds of medicines, but also pesticides, food contact appliances, packaging materials, etc. require toxicological identification. Therefore, in the toxicological work, if still use the routine animal carcinogenic test for carcinogenicity identification is far from full