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西洋参茎叶皂甙对离休克左房肌成有显著的负性肌力作用，降低心肌兴奋性，延长功能不应期，对因氯化钡诱发的自律性有抑制作用。
Panax quinquefolium saponin has a significant negative inotropic effect on the left atrial muscle from shock, reduces myocardial excitability, prolongs the functional refractory period, and inhibits the self-discipline induced by strontium chloride.