左旋千金藤碱的中枢抑制作用

Pharmacological Effects of l-Stephanine on Central Nervous System

左旋千金藤碱(l-STP)具有明显的中枢抑制作用,显著减少小鼠自发活动,对戊巴比妥钠有明显协同作用,增加小鼠对缺氧的耐受能力。l-STP还能对抗阿朴吗啡诱发的大鼠定向行为。实验观察未见僵住症状。结果提示,l-STP具有多巴胺受体阻断作用,并且可能为其镇静作用的机制之一。

l-Stephanine (l-STP) has been found to be a blocker of monoaminergic receptors in vitro. Our study showed that l-STP had markedly inhibitorY effects on central nervous system. l-STP could apparently decrcase the spontencous activity in mice and potentiate the hypnotic action of pcntobarbital. In rats l-STP could antagonize apomorphine-induced streotype behavior but no catalepsy was observed after administration of l-STP.