Cyclothiazide induces seizure behavior in freely moving rats.
Cyclothiazide induces seizure behavior in freely moving rats.
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环噻嗪诱导自由活动大鼠的癫痫行为
DOI:
10.1016/j.brainres.2010.07.088
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发表时间:
2010-10-08
期刊:
影响因子:
2.9
通讯作者:
Wang Y
中科院分区:
文献类型:
--
作者:
Kong S;Qian B;Liu J;Fan M;Chen G;Wang Y
We have previously demonstrated that cyclothiazide (CTZ) is a potent convulsant drug inducing robust epileptiform activity in hippocampal neurons both in vitro and in vivo. Here we further establish an animal model for CTZ-induced behavioral seizures in freely moving rats. Microinjection of CTZ into left ventricle dose-dependently induced robust seizure behaviors within three hours after administration. At doses of 0.75 μmol, CTZ induced Racine score IV-V seizure behaviors in 71% (n=14) of the rats tested. In addition, CTZ also induced epileptiform EEG activity accompanying behavioral seizures. The convulsant action of CTZ on both behavior and EEG was blocked by pre-treatment with clinical anticonvulsant drug diazepam (n=5). In conclusion, our results demonstrate that CTZ is capable of inducing behavioural seizures in intact animals. Since CTZ acts on both GABAergic and glutamatergic systems, this new animal epilepsy model will be useful for anticonvulsant drug testing and general epilepsy research.
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影响因子:
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