Effects of the Aqueous Extract of Anethum graveolens   Leaves on Seizure Induced by Pentylenetetrazole in Mice

Background: In this study, the aqueous extract of Anethum graveolens

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(dill) leaves was studied for its effects on treating convulsions and epilepsy, by using a pentylenetetrazole (PTZ) kindling model. The evaluated plant has a traditional medical reputation for profound anticonvulsant activities, additionally, dill has been claimed to exhibit anti-inflammatory and analgesic properties.
Methods: For the PTZ kindling induction, mice were given a dose of PTZ (37 mg/kg, intraperitoneally) every other day, and seizure stages were precisely recorded. During and after kindling, the effects of the non-toxic doses of the aqueous extracts (100, 250, and 400 mg/kg) on seizure latency in stage 2 (S₂L), seizure latency in stage 4 (S₄L), and seizure duration in stage 5 (S₅D) were measured.
Results: The aqueous extract of dill leaves had a noticeable anticonvulsant effect. The 400 mg/kg dose of the extract sample decreased with S₅D (P < 0.05), and increased with S₂L and S₄L significantly (P < 0.05 and P < 0.01, respectively).
Conclusion: The obtained data shows that the aqueous extract possesses anticonvulsant activity against seizure induced by PTZ. The presence of anticonvulsant compounds in this medicinal herb suggests further activity and guided fractionation studies in order to introduce this plant as a valuable source of anticonvulsant agents.