摘要
用微电极细胞内记录终板电位（ＥＰＰ）的电生理学方法，在２０只成年蟾蜍的坐骨神经－缝匠肌标本上研究了雷公藤多甙（ＴＷＰ）对神经肌接头（ＮＭＪ）兴奋传递的影响。结果表明：ＴＷＰ可引起ＥＰＰ振幅改变，影响ＮＭＪ的兴奋传递，而且其影响具有明显的量效依赖关系，适当浓度的ＴＷＰ能明显地增加ＥＰＰ振幅，促进ＮＭＪ的兴奋传递。
The effects of tripterygium wilfordii polyglycosidium(TWP) on the transmission at the neuromuscular junctions (NMJ) of sciatic nerve sartorius muscle preparations of 20 adult toads (Bufo bufo gargarizans) in vitro were studied by means of intracellular microelectrode recording of endplate potentials (EPP). The results revealed that TWP could cause changes of EPP amplitude so as to influence the transmission at NMJ, and the effects apparently depended on the concentration of the drug. A proper concentration of TWP could produce a significant increase in EPP amplitude and therefore facilitate the transmission at the NMJ.
出处
《华西医科大学学报》
CSCD
1997年第2期145-148,共4页
Journal of West China University of Medical Sciences
关键词
雷公藤多甙
终板电位
蟾蜍
重症肌无力
Tripterygium wilfordii polyglycosidium End plate potential Toad
