Increased density of entorhinal glutamate-immunoreactive vertical fibers in schizophrenia

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Abstract
Summary Gluatamtergic fibers have been immunocytochemically localized in the entorhinal cortex of postmortem schizophrenic brains. The density of small caliber vertical fibers was higher in schizophrenics than controls, with no significant increase in the number of large caliber fibers. Increased glutamatergic fiber density has been previously reported in the cingulate cortex. It is proposed that increases in glutamatergic fibers from the amygdala may be responsible for these changes and that they may play a central role in the pathophysiology of schizophrenia.