Review
Excitotoxity and the NMDA receptor

https://doi.org/10.1016/0166-2236(87)90177-9Get rights and content

Abstract

The same receptors for excitatory amino acids (EAA) that mediate direct neuronal depolarization can also be responsible for neuronal injury. Prolonged stimulation of EAA receptors of either the N-methyl-d-aspartate (NMDA) or non-NMDA types eventually results in the death of most central neurons. The exact mechanism(s) of cell injury is complicated, since depolarization and neuronal swelling, calcium influx, and possibly second messengers all contribute. Evidence is accumulating that the brain damage associated with anoxia, stroke, hypoglycemia, epilepsy, and perhaps neurodegenerative illnesses such as Huntington's disease may be at least partially produced by excessive activation of NMDA receptors. To the extent that the pathophysiology can be explained by this mechanism, it may be amenable to rational therapies now under development.

References (43)

  • J.W. Olney et al.

    Brain Res.

    (1981)
  • J.W. Olney et al.

    Neurosci. Lett.

    (1986)
  • F. Hajos et al.

    Neuroscience

    (1986)
  • G. Garthwaite et al.

    Neuroscience

    (1986)
  • J. Garthwaite et al.

    Neuroscience

    (1986)
  • R.S. Sloviter

    Brain Res. Bull.

    (1983)
  • P.S. Spencer et al.

    Lancet

    (1986)
  • D.R. Lucas et al.

    AMA Arch. Ophthalmol.

    (1957)
  • J.W. Olney

    Science

    (1969)
  • J.W. Olney et al.

    Exp. Brain Res.

    (1971)
  • J.W. Olney
  • J.C. Watkins et al.
  • J.W. Olney et al.

    Neurosci. Lett.

    (1986)
  • S.M. Rothman

    J. Neurosci.

    (1985)
  • D.W. Choi et al.

    J. Neurosci.

    (1987)
  • D.W. Choi

    J. Neurosci.

    (1987)
  • Rothman, S. M., Thurston, J. G. and Hauhart, R. E. Neuroscience (in...
  • J. Garthwaite et al.

    Neurosci. Lett.

    (1986)
  • A.B. MacDermott et al.

    Nature

    (1986)
  • J.L. Farber et al.

    Am. J. Pathol.

    (1981)
  • D.W. Choi et al.

    Soc. Neurosci. Abstr.

    (1986)
  • Cited by (1185)

    • Time-dependent impact of glutamatergic modulators on the promnesiant effect of 5-HT<inf>6</inf>R blockade on mice recognition memory

      2017, Pharmacological Research
      Citation Excerpt :

      Various hypotheses can explain this unexpected result. First, NMDAR overactivation (caused by high extracellular glutamate levels) is known to have deleterious or even excitotoxic effects [45]. The increase in glutamate levels elicited by the blockade of 5-HT6R is not supposed to raise toxic levels by itself.

    • Physicochemical Properties for Potential Alzheimer's Disease Drugs

      2017, Drug Discovery Approaches for the Treatment of Neurodegenerative Disorders: Alzheimer's Disease
    View all citing articles on Scopus
    View full text