Selenium induced anticonvulsant effect: A potential role of prostaglandin E1 receptor activation linked mechanism

Ashish K. Rehni, Thakur Gurjeet Singh

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Project: Selenium deficiency has been associated with enhanced propensity of seizures in man and laboratory animals. Therefore, the present study has been designed to investigate the anti-convulsant effect of sodium selenite and seleno-. dl-methionine on pentylenetetrazole induced seizures in mice and the role of prostaglandin receptor activation in the proposed anticonvulsant effect of sodium selenite. Procedure: Sodium selenite (1, 3 and 10mgkg-1, i.p.) and seleno-dl-methionine (0.3, 1 and 3mgkg-1, i.p.) was used to evaluate the potential effect on pentylenetetrazole induced seizures in mice. Pentylenetetrazole induced seizures were assessed in terms of onset time of straub's tail phenomenon, jerky movements of the whole body and convulsions. Additionally, an isobolographic study design was used to examine the interaction between sodium selenite and celecoxib (a cyclooxygenase-2 inhibitor). Sodium selenite and seleno-dl-methionine significantly attenuated pentylenetetrazole induced seizures in mice. Results: Prior administration of misoprostol (a selective agonist of prostaglandin E1 receptors) markedly attenuated the anticonvulsant effect of sodium selenite as well as seleno-dl-methionine in mice. However, the administration of misoprostol per se did not produce any behavioral changes. Further, sodium selenite was observed to exert a synergistic interaction with celecoxib. Conclusions: Selenium induced reduction in seizure like behavior might be ascribed to the activation of a prostaglandin E1 receptor activation linked mechanism. It is further proposed that sodium selenite exerts a synergistic anti-convulsant effect with celecoxib indicating the therapeutic usefulness of combining the two agents to treat epilepsy.

Original languageEnglish (US)
Pages (from-to)31-39
Number of pages9
JournalJournal of Trace Elements in Medicine and Biology
Volume27
Issue number1
DOIs
StatePublished - Jan 2013
Externally publishedYes

Keywords

  • Celecoxib
  • Misoprostol
  • Prostaglandin E receptors
  • Seleno-dl-methionine
  • Sodium selenite

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Inorganic Chemistry

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