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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Schizophrenia and glutamatergic transmission.

Schizophrenia is a human brain disease with well-defined symptoms and a lifelong disease course, but without a current biological explanation. Several observations implicate brain glutamatergic abnormalities in the pathophysiology of this illness. This evidence includes both human neurochemical and clinical pharmacologic data. Furthermore the psychotomimetic action of phencyclidine, the noncompetitive NMDA-sensitive glutamate receptor antagonist, suggests the association between human psychosis and NMDA receptor blockade. This paper reviews basic aspects of glutamatergic transmission in animal and human brain with particular attention to its putative role in schizophrenia. Consideration is given to other glutamate-related human brain diseases and their purported mechanisms. Evidence of glutamatergic abnormalities in schizophrenia is critically reviewed, including data using postmortem neurochemistry, in vivo human brain imaging, clinical pharmacology, and animal models. The current theoretical formulations based on these studies are articulated. We propose a "working" glutamate hypothesis of schizophrenia which postulates a diminished glutamatergic transmission in the hippocampal glutamate-mediated efferent pathways and cerebral dysfunction in the hippocampus and its target areas, especially the anterior cingulate cortex. Considerable work remains to be done in this area to formulate and test a comprehensive hypothesis.[1]


  1. Schizophrenia and glutamatergic transmission. Tamminga, C.A. Critical reviews in neurobiology. (1998) [Pubmed]
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