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Background:   Epilepsy is a chronic, complex, unprovoked, and recurrent disorder of the nervous system that affected several people worldwide. Phyllanthus amarus (PA) has been documented to have neuroprotective potential.Aim:   To evaluate the potential of standardized extract of PA and its possible mechanism of action against the Pentylenetetrazol (PTZ)-induced convulsion and kindling associated post-ictal depression in experimental mice.Materials and Methods:   Phyllathin was isolated from methanolic extract of PA and well-characterized using HPTLC, ESI-MS/MS, and LC/MS. Phyllathin containing a standardized extract of PA (50, 100, and 200 mg/kg) was administered in convulsed and kindled mice, followed by an assessment of various parameters.Results:   The spectral analysis confirmed the molecular formula and weight of phyllanthin as C 24 H 34 O 6  and 418.2342 Da. PA (100 and 200 mg/kg) significantly ameliorated PTZ-induced ( p &lt; 0.05) duration, onset of tonic-clonic convulsion, and mortality in mice. It also significantly attenuated ( p &lt; 0.05) PTZ-induced kindling in mice. Alteration in brain GABA, dopamine, and glutamate, Na + K + ATPase, Ca +2 -ATPase activities, and oxido-nitrosative stress in kindled mice was significantly restored ( p &lt; 0.05) by PA treatment. It also significantly ( p &lt; 0.05) down-regulated brain mRNA expressions of NF-κB, TNF-α, IL-1β, COX-2, and TLR-4. Histological aberrations induced by PTZ in the brain of a kindled rat was significantly ( p &lt; 0.05) ameliorated by PA.Conclusion:   Phyllanthin containing a standardized extract of PA exerts its antiepileptic potential via balancing excitatory (glutamate) and inhibitory (GABA) brain monoamines, voltage-gated ion channels (Na + K + /Ca +2 -ATPase) and inhibition of NF-κB/TLR-4 pathway to ameliorate neuroinflammation (TNF-α, IL-1β, and COX-2) in experimental mice.

dose-response

Phyllathin From Phyllanthus Amarus Ameliorates Epileptic Convulsion and Kindling Associated Post-Ictal Depression in Mice via Inhibition of NF-κB/TLR-4 Pathway