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Glutamate and the pathophysiology of hypoxic–ischemic brain damage

Glutamate and the pathophysiology of hypoxic–ischemic brain damage Information obtained over the past 25 years indicates that the amino acid glutamate functions as a fast excitatory transmitter in the mammalian brain. Studies completed during the last 15 years have also demonstrated that glutamate is a powerful neurotoxin, capable of killing neurons in the central nervous system when its extracellular concentration is sufficiently high. Recent experiments in a variety of preparations have shown that either blockade of synaptic transmission or the specific antagonism of postsynaptic glutamate receptors greatly diminishes the sensitivity of central neurons to hypoxia and ischemia. These experiments suggest that glutamate plays a key role in ischemic brain damage, and that drugs which decrease the accumulation of glutamate or block its postsynaptic effects may be a rational therapy for stroke. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Neurology Wiley

Glutamate and the pathophysiology of hypoxic–ischemic brain damage

Annals of Neurology , Volume 19 (2) – Feb 1, 1986

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References (83)

Publisher
Wiley
Copyright
Copyright © 1986 American Neurological Association
ISSN
0364-5134
eISSN
1531-8249
DOI
10.1002/ana.410190202
pmid
2421636
Publisher site
See Article on Publisher Site

Abstract

Information obtained over the past 25 years indicates that the amino acid glutamate functions as a fast excitatory transmitter in the mammalian brain. Studies completed during the last 15 years have also demonstrated that glutamate is a powerful neurotoxin, capable of killing neurons in the central nervous system when its extracellular concentration is sufficiently high. Recent experiments in a variety of preparations have shown that either blockade of synaptic transmission or the specific antagonism of postsynaptic glutamate receptors greatly diminishes the sensitivity of central neurons to hypoxia and ischemia. These experiments suggest that glutamate plays a key role in ischemic brain damage, and that drugs which decrease the accumulation of glutamate or block its postsynaptic effects may be a rational therapy for stroke.

Journal

Annals of NeurologyWiley

Published: Feb 1, 1986

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