不同用药模式的罗库溴铵、维库溴铵和阿曲库铵对骨骼肌成人型乙酰胆碱受体的作用被引量：4

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摘要目的研究不同用药模式下罗库溴铵、维库溴铵和阿曲库铵对神经肌肉接头后膜成人型乙酰胆碱受体(-εnAChR)的作用,以探讨肌松药的作用机制。方法通过脂质体转染法在HEK293细胞表达ε-nAChR。分别研究预先给予肌松药和同时给予肌松药和乙酰胆碱混合液两种模式下,罗库溴铵、维库溴铵和阿曲库铵各药对ε-nAChR的作用。结果两种用药模式的罗库溴铵、维库溴铵和阿曲库铵均呈浓度依赖性抑制-εnAChR。两种用药模式的维库溴铵对-εnAChR作用的IC50值无统计学差异(P>0.05),罗库溴铵和阿曲库铵预先给予对-εnAChR抑制的IC50值明显大于同时给药(P<0.05)。预先给予罗库溴铵和阿曲库铵的内向电流达峰时间比同时给予模式的显著延长(P<0.05)。低浓度维库溴铵在两种给药模式下的内向电流达峰时间无统计学差异(P>0.05),高浓度预先给予组达峰时间明显延长(P<0.05)。两种给药模式相比较,罗库溴铵、维库溴铵和阿曲库铵对ACh激发ε-nAChR内向电流衰减的时间差异无统计学意义(P>0.05)。结论曲库铵除竞争性阻滞ε-nAChR外,还表现对ε-nAChR开放离子通道阻滞;维库溴铵以竞争性阻滞-εnAChR为主;罗库溴铵则除竞争性阻滞-εnAChR外,还可能有其他非竞争性阻滞机制。

作者赵雪莲庄心良安广权高雁张莹

机构地区河北医科大学第四医院上海交通大学第一附属医院

出处《山东医药》 CAS 北大核心 2011年第1期99-101,共3页 Shandong Medical Journal

基金河北省重点特色学科建设项目([2005]52)

关键词受体乙酰胆碱肌松药 HEK293细胞通道开放性阻滞

分类号 R962 [医药卫生—药理学]

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参考文献8

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