DIPHENYLHYDANTOIN ATTENUATES HYPOXIA-INDUCED RELEASE OF [H-3] GLUTAMATE FROM RAT HIPPOCAMPAL SLICES

被引:18
作者
POTTER, PE
DETWILER, P
THORNE, B
MOSKAL, JR
机构
[1] MONTEFIORE MED CTR,ALBERT EINSTEIN COLL MED,DEPT NEUROSURG,BRONX,NY 10467
[2] CHICAGO INST NEUROSURG & NEURORES,CHICAGO,IL 60614
关键词
DIPHENYLHYDANTOIN; GLUTAMATE; HIPPOCAMPUS; HYPOXIA; ISCHEMIA; PHENYTOIN; STROKE;
D O I
10.1016/0006-8993(91)90728-E
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The ability of diphenylhydantoin (DPH) to prevent hypoxia-induced [H-3]glutamate release was examined in perfused rat hippocampal slices. Hypoxia (25 min; 95% N2/5% CO2) caused a prolonged release of [H-3]glutamate, which was reduced significantly if DPH (20-mu-M) was present from the beginning of the perfusion. Perfusion with oxygenated medium (reoxygenation) following hypoxia also caused a pronounced release of glutamate. A therapeutic concentration of DPH, added before, during, or after hypoxia, decreased this release of glutamate. These results suggest that DPH may protect against glutamate-mediated neurotoxicity associated with stroke.
引用
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页码:127 / 130
页数:4
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