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Short Communication Open Access
In the present study, anticonvulsant activity of methanol extract of Eclipta alba (10-200 mg/kg) was studied using pentylenetetrazole- and picrotoxin-induced seizure models. Mechanism of effect of methanol extract of Eclipta alba was further elucidated by studying its GABA A receptor modulatory activity and its effect on levels of GABA in mice brain. Methanol extract of Eclipta alba exhibited potent anticonvulsant activity but has saturation of its pharmacological activity at 50 mg/kg. At the concentration of 10 mg/ml, contractions induced in guinea pig ileum was blocked by picrotoxin, but it didn't not show any increase in GABA levels in mice brain after treatment. Hence, it can be concluded that methanol extract of Eclipta alba possesses potent anticonvulsant activity because of its positive modulatory effect on GABA A receptors.
Epilepsy, pentylenetetrazole, picrotoxin, GABA, wedelolactone, luteolin