EXCITATORY AMINO-ACID ANTAGONISTS AND THEIR POTENTIAL FOR THE TREATMENT OF ISCHEMIC BRAIN-DAMAGE IN MAN

被引:146
作者
MCCULLOCH, J [1 ]
机构
[1] UNIV GLASGOW,HUGH FRASER NEUROSCI LABS,GLASGOW G61 1QH,SCOTLAND
基金
英国惠康基金;
关键词
N-METHYL-D-ASPARTATE; ISCHEMIC BRAIN DAMAGE; GLUTAMATE RECEPTOR;
D O I
10.1111/j.1365-2125.1992.tb04118.x
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
1 A wide range of therapeutic strategies has been explored in humans and experimental animals with the aim of improving outcome after brain ischaemia but few have shown convincing clinical benefit. 2 The massive increase in the extracellular concentration of glutamate which occurs in cerebral ischaemia is a key component in the sequence of neurochemical events which leads to neuronal death. Pharmacological blockade of the action of glutamate at the N-methyl-D-aspartate (NMDA) receptor, (the glutamate receptor subtype principally involved in the neurotoxic effects of the amino acid) provides a novel therapeutic approach to cerebral ischaemia. 3 The effects of NMDA receptor antagonists in animal models of focal cerebral ischaemia are uniquely consistent, viz, a marked reduction in the amount of irreversible ischaemic damage irrespective of the species, the model of cerebral ischaemia, when the animals are sacrificed after the ischaemic episode, whether ischaemia is permanent or temporary and followed by reperfusion and which particular NMDA antagonist was employed. 4 NMDA receptor antagonists have marked effects on brain function in normal animals. The balance between these potential adverse effects and the anti-ischaemic efficacy of these drugs will ultimately determine the clinical utility of this class of drugs. 5 The data which are reviewed provide the basis for the current clinical evaluation of NMDA receptor antagonists in stroke and head trauma.
引用
收藏
页码:106 / 114
页数:9
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