Glutamate and epilepsy

J Nutr. 2000 Apr;130(4S Suppl):1043S-5S. doi: 10.1093/jn/130.4.1043S.

Abstract

Epileptic syndromes have very diverse primary causes, which may be genetic, developmental or acquired. In rodent models, altering glutamate receptor or glutamate transporter expression by knockout or knockdown procedures can induce or suppress epileptic seizures. Regardless of the primary cause, synaptically released glutamate acting on ionotropic and metabotropic receptors appears to play a major role in the initiation and spread of seizure activity. In rodent models of acquired epilepsy and in human temporal lobe epilepsy, there is evidence for enhanced functional efficacy of ionotropic N-methyl-D-aspartate (NMDA) and metabotropic (Group I) receptors. In animal models of epilepsy, antagonists acting at NMDA receptors or at Group I metabotropic receptors have potent anticonvulsant actions.

Publication types

  • Review

MeSH terms

  • ATP-Binding Cassette Transporters / metabolism
  • Amino Acid Transport System X-AG
  • Animals
  • Epilepsy / physiopathology*
  • Glutamic Acid / physiology*
  • Humans
  • Receptors, Glutamate / physiology
  • Receptors, Metabotropic Glutamate / physiology

Substances

  • ATP-Binding Cassette Transporters
  • Amino Acid Transport System X-AG
  • Receptors, Glutamate
  • Receptors, Metabotropic Glutamate
  • Glutamic Acid