In conclusion, imperatorin and isoimperatorin were found to have vasorelaxing effects for the first time.

• 本课题创新点在于首次通过细胞膜色谱模型发现欧前胡素和异欧前胡素对大鼠腹主动脉细胞膜有亲和作用，并且通过现代药理学实验发现两者具有舒张离体大鼠腹主动脉环的新活性。