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本实验以“细胞突变试验”作为肿瘤成因多阶段学说的起始阶段的模型，观察自制芎龙汤和地黄汤对它们的影响。结果提示，活血化瘀方剂芎龙汤有中等度反突变作用，补气养阴方剂地黄汤无反突变作用。
In this experiment, we used the “cell mutation test” as a model for the initial stage of the multistage theory of tumor origin to observe the effects of self-prepared Qilongtang and Dihuangtang on them. The results suggest that Huoxuehuayu prescription Qilongtang has moderate antimutagenicity, and Buqiyangyin prescription Dihuangtang has no counter-mutation.