These show the different extracts of BTW have the preventive and therapeutic effect on mice colorectal cancer induced by DMH. And the preventive effect is better than the therapeutic effect, the alcohol extract is more effective.

• 提示白头翁不同提取物对DMH 诱发小鼠大肠癌均具有一定的防治作用，预防作用优于治疗作用，醇提物的作用较强。