Age dependency of the susceptibility of rats to aminooxyacetic acid seizures

Autor: Marek Dziki, Waldemar A. Turski, Esper A. Cavalheiro, Zdzisław Kleinrok, Jolanta Parada
Rok vydání: 1992
Předmět:
Zdroj: Developmental Brain Research. 67:137-144
ISSN: 0165-3806
DOI: 10.1016/0165-3806(92)90214-h
Popis: Immature rats are more susceptible to clonic seizures induced by aminooxyacetic acid (AOAA) than mature and senile rats. Highest susceptibility to AOAA seizures was observed in 7–14-day-old rat pups. The lowest susceptibility was recorded in 10–20 month-old rats. AOAA seizures in 14-day-old rats were blocked by clonazepam and valproate, but not by phenobarbital, carbamazepine, diphenylhydantoin, trimethadione or ethosuximide. Morphological analysis of brains from 14-day- and 3-month-old rats which experienced AOAA seizures did not reveal epilepsy-related damage. These observations suggest that immature rat brain is highly prone to convulsions induced by AOAA and that such convulsions are difficult to control by available antiepileptic treatment.
Databáze: OpenAIRE