Hydroalcoholic extract of Zizyphus jujuba ameliorates seizures, oxidative stress, and cognitive impairment in experimental models of epilepsy in rats

Monika Pahuja, Jogender Mehla, K. H. Reeta, Sujata Joshi, Yogendra Kumar Gupta

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

The anticonvulsant effect of the hydroalcoholic extract of Zizyphus jujuba (HEZJ) fruit (100, 250, 500, and 1000. mg/kg, orally) was evaluated in experimental seizure models in rats. The effect of HEZJ on seizure-induced cognitive impairment, oxidative stress, and cholinesterase activity was also investigated. HEZJ (1000. mg/kg) exhibited maximum protection (100%) against generalized tonic-clonic seizures in the pentylenetetrazole (PTZ) seizure model and and 66.7% protection against tonic hindlimb extension in the maximal electroshock (MES) seizure model. Significant impairment in cognitive functions was observed in both PTZ- and MES-challenged rats. Pretreatment with HEZJ resulted in significant improvement in learning and memory. HEZJ also reversed the oxidative stress induced by both PTZ and MES. The significant decrease in cholinesterase activity observed in the PTZ and MES models was significantly reversed by pretreatment with HEZJ. Thus, the present study demonstrates the anticonvulsant effect of HEZJ as well as amelioration of cognitive impairment induced by seizures in rats.

Original languageEnglish
Pages (from-to)356-363
Number of pages8
JournalEpilepsy and Behavior
Volume21
Issue number4
DOIs
StatePublished - Aug 2011

Keywords

  • Cholinesterase activity
  • Cognitive impairment
  • Experimental seizure models
  • Oxidative stress
  • Zizyphus jujuba

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