石菖蒲α-细辛醚抗癫痫作用的实验研究

目的探讨石菖蒲成分α-细辛醚的抗癫痫作用。方法采用MES、MST及Lithium-pilocarpine模型;预先给予不同剂量的α-细辛醚,2次/d,连续28d,记录发作潜伏期、发作级别及惊厥动物数,对比观察α-细辛醚在控制3种模型癫痫发作中的疗效。结果石菖蒲α-细辛醚能对抗MES、MST模型小鼠及Lithium-pilocarpine模型大鼠的惊厥发作,抗惊厥率分别为40%～100%、50%～90%、40%～80%;能明显延长MST模型小鼠及Lithium-pilocarpine模型大鼠惊厥发作潜伏期,分别为70～180s和4～15min;并能降低Lithi-um-pilocarpine模型大鼠惊厥发作级别达1.96。结论石菖蒲α-细辛醚具有确切的抗癫痫作用,是一种广谱抗癫痫药。

Experimental study on the antiepileptic properties of alpha-asarone in different epilepsy models

Aim To investigate the antiepileptic activity of alpha-asarone in three epilepsy models.Methods The MES mice,MST mice and Lithium-pilocarpine rats were divided randomly and respectively into groups each containing 20 animals(α-asarone groups,AED groups and normal control group).Different doses of alpha-asarone were administered to mice/rats in advance in alpha-asarone treated groups,one group received only saline,while the other groups received antiepileptic drug as a reference standard,2 times per day for 28 days.The seizure severity score,seizure latency and total number of animals with seizures were noted to observe whether alpha-asarone had anticonvulsant effect or not in three epilepsy models.Results Alpha-asarone possessed excellent anticonvulsant effect in MES and MST and lithium-pilocarpine models. It significantly decreased the seizure incidence 40%~100% in the MES models and 50%~90% in MST models,and 40%~80% in the Lithium-pilocarpine model. It significantly prolonged the seizure latency 70~180 s in MST mice and 4~15 min in Lithium-pilocarpine rats;It significantly reduced the seizure severity scores 1.96 in Lithium-pilocarpine rats.Conclusions Alpha-asarone had a positive antiepileptic activity.