Glutamate immunoreactivity in rat cerebral cortex is reversibly abolished by 6-diazo-5-oxo-L-norleucine (DON), an inhibitor of phosphate-activated glutaminase.


Glutamate (Glu) immunocytochemistry has been widely used to identify presumed gluergic neurons and synapses, but several problems related to the fact that Glu is both a synaptic transmitter and a compound used for metabolic purposes are still unsolved. One of these concerns the intense perikaryal staining observed in perfusion-fixed tissue. Phosphate… (More)


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