低频率电刺激抑制杏仁核电点燃癫痫刺激模式依赖效应的实验研究

目的:研究不同刺激模式的低频率电刺激对杏仁核电点燃癫痫模型大鼠的抗癫痫作用。方法:采用电点燃刺激法建立大鼠癫痫模型,观察开环模式(电点燃前给予)、闭环模式(电点燃后立即给予)以及不同形式闭环模式(全程给予、癫痫早期给予)的低频率电刺激对大鼠癫痫形成过程的影响。结果:闭环模式中全程给予低频率电刺激能降低大鼠电点燃癫痫形成过程中的癫痫发作等级(P〈0.01)及缩短后放电持续时间(P〈0.05)。闭环模式中癫痫形成早期给予低频率电刺激能降低大鼠电点燃癫痫形成过程中的癫痫发作等级(P〈0.05),主要表现在对癫痫0~3级发展过程的抑制(均P〈0.05)。而开环模式给予低频率电刺激不能抑制癫痫的发作(P...

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Published in浙江大学学报(医学版) no. 5; pp. 539 - 545
Main Author 刘扬 汪仪 许正浩 陈忠
Format Journal Article
LanguageChinese
Published 浙江中医药大学基础医学院,浙江杭州310053 2015
浙江医院神经内科,浙江杭州,310013%浙江大学药学院药理系,浙江杭州,310058%浙江大学药学院药理系,浙江杭州310058
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ISSN1008-9292
DOI10.3785/j.issn.1008-9292.2015.09.11

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Summary:目的:研究不同刺激模式的低频率电刺激对杏仁核电点燃癫痫模型大鼠的抗癫痫作用。方法:采用电点燃刺激法建立大鼠癫痫模型,观察开环模式(电点燃前给予)、闭环模式(电点燃后立即给予)以及不同形式闭环模式(全程给予、癫痫早期给予)的低频率电刺激对大鼠癫痫形成过程的影响。结果:闭环模式中全程给予低频率电刺激能降低大鼠电点燃癫痫形成过程中的癫痫发作等级(P〈0.01)及缩短后放电持续时间(P〈0.05)。闭环模式中癫痫形成早期给予低频率电刺激能降低大鼠电点燃癫痫形成过程中的癫痫发作等级(P〈0.05),主要表现在对癫痫0~3级发展过程的抑制(均P〈0.05)。而开环模式给予低频率电刺激不能抑制癫痫的发作(P〉0.05)。结论:低频率电刺激的抗癫痫作用存在刺激模式依赖效应,这一结果可为深部脑刺激应用于临床治疗癫痫患者提供理论依据。
Bibliography:33-1248/R
Electric stimulation therapy ; Epilepsy/therapy ; Amygdala ; Disease models, animal
LIU Yang, WANG Yi, XU Zheng-hao, CHEN Zhong (1. Department of Neurology, Zhefiang Hospital, Hangzhou 310013, China ; 2. Department of Pharmacology, College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China; 3. College of Basic Medical Science, Zhefiang Chinese Medical University, Hangzhou 310053, China)
Objective: To investigate the antiepileptic effects of various stimulation modes of low-frequency stimulation (LFS) on the kindling rats. Methods: Stimulating electrodes were implanted in the amygdala and current with constant intensity was applied to evoke kindling-induced seizures. The antiepileptic effect of LFS by open loop stimulation (before kindling), closed loop stimulation (immediately after kindling) and different forms of closed loop stimulation (whole stage after kindling and early stage after kindling) were investigated in amygdala kindled rats. Results: The closed loop LFS of whole stag
ISSN:1008-9292
DOI:10.3785/j.issn.1008-9292.2015.09.11