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N-methyl-D-aspartate receptor subtypes: multiple roles in excitotoxicity and neurological disease

Elisa A Waxman1, David R Lynch

  • 1Department of Pharmacology, University of Pennsylvania School of Medicine, Philadelphia, USA.

The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry
|January 6, 2005
PubMed

Insights

N-methyl-D-aspartate (NMDA) receptor overactivation causes cell death via excitotoxicity. Targeting specific NMDA receptor subtypes may offer therapeutic benefits for neurological disorders by blocking cell death pathways.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Pharmacology

Background:

  • N-methyl-D-aspartate (NMDA) receptors are crucial for neuronal function but can mediate excitotoxicity upon overactivation.
  • Overstimulation of NMDA receptors triggers cell death pathways, including mitochondrial dysfunction and enzyme activation.

Purpose of the Study:

  • To review the role of NMDA receptor subtypes in excitotoxicity.
  • To explore potential therapeutic strategies targeting NMDA receptor subtypes for neurological disorders.

Main Methods:

  • Literature review of NMDA receptor function and excitotoxicity.
  • Analysis of pathways activated by NMDA receptor stimulation.
  • Examination of NMDA receptor subtype-specific inhibition in neurological models.

Main Results:

  • NMDA receptor overactivation is a key mechanism in excitotoxicity.
  • Multiple pathways, including mitochondrial dysfunction and kinase activation, contribute to NMDA receptor-mediated cell death.
  • NMDA receptor subtypes may differentially regulate these pathways.

Conclusions:

  • Understanding NMDA receptor subtype roles is vital for developing targeted therapies.
  • Subtype-specific NMDA receptor inhibition shows promise for treating neurological conditions characterized by excitotoxicity.

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