Abstract
Quercetin is low molecular weight flavonoid having multiple neuropharmacological actions. Recently, its anticonvulsant effect was reported in rats using electrical kindling models. However, earlier cell culture studies have documented antagonistic action of quercetin on GABAA, GABAC and Glycine channels, which is contrary to recent findings. Hence, the present study aimed at characterizing the effects of quercetin administration in various experimental models of epilepsy. Dose-dependent effects of quercetin on maximal-electroshock seizure (MES) were determined. Further, the effective dose was tested in pentylenetetrazol-induced seizures (PTZ), and strychnine-induced seizures to study the involvement of GABA and Glycinergic receptors. The results revealed a potent anticonvulsant effect of quercetin in MES induced seizures at a dose of 5 and 10 mg/kg. This effect was found to be retained in case of PTZ-induced convulsions and strychnine-induced convulsions (quercetin 10 mg/kg). The present finding warrants further substantiation along with their correlation to molecular mechanism of action.
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