Effects of N-methyl-N-cis-styryl-cinnamamide on Penicillin-induced Epileptiform Discharges in Rats
- VernacularTitle:N-甲基-N-顺式-苯乙烯基-桂皮酰胺对青霉素致痫大鼠痫样放电的影响
- Author:
Jidong WU
;
Sichun HE
;
Xuesong HUANG
;
Weizai SHEN
- Publication Type:Journal Article
- Keywords:
Clausena lansium;
N-methyl-N-cis-styryl-cinnamamide;
Penicillin-induced;
epilepsy;
epileptiform discharges
- From:
Journal of Sun Yat-sen University(Medical Sciences)
2010;31(2):213-220
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To investigate the effects of the seed extract of Clausena lansium,N-methyl-N-cis-styryl-cinnamamide,on the penicillin-induced epilepsy in rats.[Methods]Thirty-two Sprague-Dawely rata were randomly divided into four groups with 8 rats in each group:normal control(20 mL/L Tween 80+Normal Saline),model control(20 mL/L Tween 80+Penicillin),low dose treatment(Cinnamamide 75 mg/kg+Penicillin),hish dose treatment(Cinnamamide 150 mg/kg+Penicillin).The epilepsy rat model was established by localized intracortical injections of penicillin.The effects of pretreatments of the rats with N-methyl-N-cis-styryl-cinnamamide(intraperitoneal injection,ip)on the penicillin-induced seizure activities and the epileptiform discharges recorded by electrocorticogram(ECoG)were observed.[Results]The penicillin-induced seizure was significantly lightened in both the pretreatment groups(75 and 150 mg/kg N-methyl-N-cis-styryl-cinnamamide),compared with the model group.N-methyl-N-cis-styryl-cinnamamide(75 and 150 mg/kg)could significantly prolonged the latency of epileptiform activities,shorten the duration of epileptiform discharges and decreased the mean spike frequency in the late stage(P＜0.05 or P＜0.01).However,there was no significant difference in the highest value or the lowest value of the epileptiform waves between the model and cinnamamide treatment groups.[Conclusion]The seed extract of Clansena lansium,N-methyl-N-cis-styryl-cinnamamide,can significantly inhibit the seizure and epileptiform discharges caused by penicillin-localized injections in the cortex of rats,suggesting that the natural substance has an anticonvulsive function.
