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Cited by 171

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Extrastriatal and striatal D2 dopamine receptor blockade with haloperidol or new antipsychotic drugs in patients with schizophrenia

Open access
Xiberas, X., Martinot, J. L., Mallet, L., Artiges, E., Loc'h, C., Mazière, B., Paillère-Martinot, M. L.·2001·British Journal of Psychiatry

Abstract

Background: Both traditional and atypical antipsychotics have been hypothesised to be effective in schizophrenia through limbic and cortical D 2 dopamine receptor blockade. Aims: To investigate this hypothesis with the D 2/D 3-selective positron emission tomography (PET) probe [76 Br]-FLB457. Method: PETscans were performed on 6 controls and 18 patients with schizophreniatreated with haloperidol or with risperidone, clozapine, amisulpride or olanzapine. Results: The D 2 dopamine receptor blockade was high in the temporal cortex with both haloperidol and atypical antipsychotics. The atypicals, however, induced a significantly lower D 2 binding index than haloperidol in the thalamus and in the striatum. Conclusions: Results suggest that cortical D 2 dopamine receptors are a common target of traditional and atypical antipsychotics for therapeutic action. Higher in vivo binding to the D 2 receptors in the cortex than in the basal ganglia is suggested as an indicator of favourable profile for a putative antipsychotic compound.

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Metadata

Authors
Xiberas, X., Martinot, J. L., Mallet, L., Artiges, E., Loc'h, C., Mazière, B., & Paillère-Martinot, M. L.
Venue
British Journal of Psychiatry
Published
2001-12
Volume
179
Issue
6
Pages
503-508
ISSN
  • 0007-1250 (ISSN-L)
  • 1472-1465
OpenAlex
W2117669265
Cited by
171
References
1
FWCI
8.92
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Extrastriatal and striatal D2 dopamine receptor blockade with haloperidol or new antipsychotic drugs in patients with schizophrenia. https://app.cochat.ai/papers/10.1192/bjp.179.6.503
The paper
Xiberas, X., Martinot, J. L., Mallet, L., Artiges, E., Loc'h, C., Mazière, B., & Paillère-Martinot, M. L. (2001). Extrastriatal and striatal D2 dopamine receptor blockade with haloperidol or new antipsychotic drugs in patients with schizophrenia. British Journal of Psychiatry. https://doi.org/10.1192/bjp.179.6.503

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.