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Neurotransmitters, receptors and neuropeptides in schizophrenic brains. Michio TORU 1 , Hiromitsu SHIMIZU 1 , Norio HATA 1 1Department of Psychiatry, Shinshu University School of Medicine pp.721-735
Published Date 1986/8/10
DOI https://doi.org/10.11477/mf.1431905820
  • Abstract
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It has been hypothesized about the etiology of schizophrenia that abnormalities in central neuro-transmitter system is involved. Much evidence has indicated an important role for dopamine in the brain, especially in acute states. This hypothesis is supported by the fact that antipsychotic drugs play their role in close relation to their antidopa-minergic potency.

In this review paper, we collected biochemical findings mainly obtained from post-mortem schizo-phrenic brains. The focus is first on the classical neurotransmitters, second on the neurotransmitter receptors and third on the neuropeptides.After we reviewed the data of serotonin, noradrenaline, choline acetyltransferase, γ-aminobutyric acid and glutamic acid, dopamine system was examined. In our analysis of ten or more post-mortem brains from chronic schizophrenic patients, dopamine concentrations of schizophrenics did not differ from those of controls in the n. caudatus, putamen, n. ruber and n. subthalamicus. A significantly increased homovanillic acid level was observed in the putamen and substantia nigra. A most important finding is that tyrosine hydroxylase was measured to be increased in the n. caudatus, putamen and substantia nigra.


Copyright © 1986, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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