Anti-seizure effects of walnut peptides in mouse models of induced seizure: The involvement of GABA and nitric oxide pathways

Epilepsy Res. 2021 Oct:176:106727. doi: 10.1016/j.eplepsyres.2021.106727. Epub 2021 Jul 16.

Abstract

Epilepsy is one of the foremost medical disorders. Oxidative stress is a well-known mechanism in epileptogenesis, and many studies suggest that oxidative stress affects the onset and evolution of epilepsy. Here we evaluated the walnut peptide extracts' anti-seizure property in three different mouse seizure models including pentylenetetrazole-induced clonic seizure, chemical kindling, and maximal electroshock. Walnut peptides (20 mg/Kg) were administered by intraperitoneal (IP) injection of mice 60 min before seizure induction in the three models. To delineate the mechanisms of walnut peptides anti-seizure activity, we evaluated the impact of diazepam, flumazenil, and a NOS inhibitor on this activity. Intraperitoneal administration of walnut peptides significantly increased the seizure threshold. Our results also demonstrated that walnut peptides exert their anti-seizure properties through the modulation of benzodiazepine receptors. Thus, walnut peptides may be considered as a new anti-convulsion agent, which can reduce seizure occurrence and slow down seizure progression.

Keywords: Chemical kindling; Electroshock; Pentylenetetrazole; Seizure; Walnut peptides.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anticonvulsants / adverse effects
  • Disease Models, Animal
  • Dose-Response Relationship, Drug
  • Juglans* / metabolism
  • Mice
  • Nitric Oxide* / metabolism
  • Pentylenetetrazole / toxicity
  • Peptides / therapeutic use
  • Seizures / chemically induced
  • gamma-Aminobutyric Acid

Substances

  • Anticonvulsants
  • Peptides
  • Nitric Oxide
  • gamma-Aminobutyric Acid
  • Pentylenetetrazole