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Seizures are a disorder caused by structural brain lesions, life-threatening metabolic derangements, or drug toxicity. The present study describes the behavior related to proconvulsant activity induced by thiocolchicoside (TCC) in rats and investigates the electrocorticographic patterns of this behavior and the effectiveness of classic antiepileptic drugs used to control these seizures. Forty-nine adult male Wistar rats were used and divided into two phases of our experimental design: 1) evaluation of seizure-related behavior and electrocorticographic patterns induced by TCC and 2) evaluation of the efficacy of classical antiepileptic drugs to control the proconvulsive activity caused by TCC. Our results showed that TCC induced tonic-clonic seizures that caused changes in electrocorticographic readings, characteristic of convulsive activity, with average amplitude greater than that induced by pentylenetetrazole. Treatment with anticonvulsants, especially diazepam, reduced the electrocorticographic outbreaks induced by TCC. The results suggested that TCC caused seizures with increased power in brain oscillations up to 40 Hz and that diazepam may partially reverse the effects.


D S Leitão, A R Andrade, N C L Medeiros, M F C Martins, L O Ferreira, V C Santos, A O Hamoy, L A L Barbas, N A Muto, V Jóia de Mello, D C F Lopes, M Hamoy. Benzodiazepine partially reverses tonic-clonic seizures induced by thiocolchicoside. Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas. 2022;55:e11771

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PMID: 35239777

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