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Anticonvulsant and proconvulsant roles of nitric oxide in experimental epilepsy models
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Del-Bel,E.A.; Oliveira,P.R.; Oliveira,J.A.C.; Mishra,P.K.; Jobe,P.C.; Garcia-Cairasco,N.
The effect of acute (120 mg/kg) and chronic (25 mg/kg, twice a day, for 4 days) intraperitonial injection of the nitric oxide (NO) synthase (NOS) inhibitor NG-nitro-L-arginine (L-NOARG) was evaluated on seizure induction by drugs such as pilocarpine and pentylenetetrazole (PTZ) and by sound stimulation of audiogenic seizure-resistant (R) and audiogenic seizure-susceptible (S) rats. Seizures were elicited by a subconvulsant dose of pilocarpine (100 mg/kg) only after NOS inhibition. NOS inhibition also simultaneously potentiated the severity of PTZ-induced limbic seizures (60 mg/kg) and protected against PTZ-induced tonic seizures (80 mg/kg). The audiogenic seizure susceptibility of S or R rats did not change after similar treatments. In conclusion,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimental epilepsy; Seizures; Forebrain; Brainstem; Pilocarpine; Pentylenetetrazol; Audiogenic seizures; Genetically epilepsy-prone rats; GEPR; Nitric oxide.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000800010