ABSTRACT
The present investigation was aimed to study an anticonvulsant activity of ethanolic extract of Desmodium triflorum (L.) DC., Fabaceae, in mice. Animal models of epilepsy namely the pentylenetetrazole (PTZ), isoniazid or isonicotinic hydrazide (INH) and maximal electroshock induced convulsion (MES) were used to evaluate the anticonvulsant effects of the extracts. The biochemical estimation was done by measuring the lipid peroxidation and reduced glutathione (GSH). In the PTZ induced convulsion, ethanolic extract of D. triflorum (EEDT) 400 mg/kg significant delayed the onset of convulsion, reduced the duration of convulsion and reduced mortality. Similarly a dose of 800 mg/kg of EDDT significantly delayed the onset of convulsion, reduced the duration of convulsion and showed 33.33% protection in mice against INH induced convulsion. Further no mortality was found. Both the doses reduced hind limb tonic extension (HLTE) phase of MES induced convulsion in mice. The pretreated EEDT showed significant inhibition of lipid peroxidation and increases the reduced glutathione level in mice brain tissue. The results revealed that D. triflorum possesses a significant dose dependent anticonvulsant activity.
ABSTRACT
The present study was carried out to evaluate the hepatoprotective activity of aqueous and ethanolic leaves extracts of Oxalis corniculata L., Oxalidaceae, against thioacetamide-induced hepatotoxicity. Hepatotoxicity was induced in Wistar rats of either sex by subcutaneous injection of thioacetamide. An aqueous and ethanolic extract of aerial parts of O. corniculata (200 and 400 mg/kg/day) were evaluated. Oral administration of O. corniculata aqueous and ethanolic leaves extract at 400 mg/kg resulted in a significant reduction in SGOT (146.42±2.54 and 136.75±1.37 IU/L respectively), SGPT (81.96±3.15 and 72.05±2.33 IU/L respectively), GGTP (16.6±0.49 and 15.02±0.68 IU/L respectively), ALP (241.86±3.94 and 202.42±5.37 IU/L respectively) and total bilirubin (0.226±0.00 mg/dL 0.288±0.01 mg/dL respectively) content that were lesser than positive control, thioacetamide damaged rats. Histology of the liver sections of the animals treated with the extract also showed dose dependent reduction of necrosis. Hence the study concluded that O. corniculata has potential hepatoprotective activity.