[Kindling model of SD rats induced by injection of PTX intraperitoneally].
OBJECTIVE
To observe the kindling model of Sprague-Dawley (SD) rats induced by injection of different doses of picrotoxin (PTX) intraperitoneally, and to evaluate the effect of the drug on the model.


METHODS
SD rats were devided randomly into four groups: control group, epilepsy Group I (PTX, 1.5 mg.kg-1.d-1), epilepsy Group II (PTX, 2 mg.kg-1.d-1) and the phenobarbital group. The kindling model of rats was induced by daily injection of PTX intraperitoneally. The seizures in the rats were observed, and the results of electroencephalography (EEG) were recorded.


RESULTS
On the 20th day after injection of PTX, 71% SD rats were kindled in epilepsy Group I; 4 rats were dead, 2 rats were at stage IV of convulsions, and 2 rats were at stage V of convulsions in epilepsy Group II; 17% rats were kindled in the phenobarbital group. The EEG demonstrated spike discharges in the kindled rats.


CONCLUSIONS
In this models, the better dose of PTX is 1.5 mg.kg-1.d-1, and phenobarbital sodium can protect SD rats injected PTX intraperitoneally from seizure.
Tian
F F
FF
Department of Neurology, Xiangya Hospital, Central South University, Changsha 41008, China.
Xie
G J
GJ
Yang
Q D
QD
D000818:Animals; D004195:Disease Models, Animal; D004827:Epilepsy / Q000139:chemically induced*; D005260:Female; D007274:Injections, Intraperitoneal; D007696:Kindling, Neurologic; D008297:Male; D010852:Picrotoxin; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley
D010852:Picrotoxin