Elevated extracellular levels of glutamate, aspartate and gamma-aminobutyric acid within the intraoperative, spontaneously epileptiform human hippocampus.


We report preliminary results from four patients subjected to hippocampal electrocorticography and microdialysis during temporal lobe epilepsy surgery. In two cases, spontaneously vigorous hippocampal epileptiform activity (EA) was identified; basal dialysate levels for hippocampal glutamate, aspartate, and gamma-aminobutyric acid ranged from approximately… (More)


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