通过对北沙参、旱莲草等10种中草药的抗突变观察,发现北沙参的水及乙醇浸出液均具有明显的抗突变作用,且有剂量——反应关系。 By observing the anti-mutation of 10 kinds of Chinese herbal medicines, such as the North Adenophora and Eclipta prostrata, it was found that both the water and the ethanol extract of the North Adenophora japonicus had significant antimutagenic effect, and there was a dose-response relationship.