Objective: To study the mechanism of depressant effect of xanthotoxol(XT) on contractility in the isolated guinea pig atria.

• 目的:研究花椒毒酚(XT)抑制豚鼠心肌收缩力的作用机理。方法:采用张力描记法测定离体豚鼠左房肌的收缩力。