Workshop on schizophrenia, PET, and dopamine D2 receptors in the human neostriatum.

N. C. Andreasen, R. Carson, M. Diksic, A. Evans, L. Farde, A. Gjedde, A. Hakim, S. Lal, N. Nair, G. Sedvall

Research output: Contribution to journalArticle

Abstract

Recently, two research groups published numbers for D2 receptor sites in the neostriatum of drug-naive schizophrenic patients, obtained in vivo by positron emission tomography (PET). One study appeared to confirm the increase of D2 receptor numbers, while the other study did not. A workshop was convened in Montreal to examine the reasons for the discrepancy between the results obtained by the two groups. The workshop considered patient populations, PET instrumentation and scanning methods, pharmacology, and modeling. The workshop identified differences between the approaches of the two groups that could contribute to the divergent results, including age and chronicity of the patient samples, brain region selected for study, metabolism of the different radioligands in blood and brain, reversibility of binding, PET instrumentation, and complexity of data analysis. The workshop concluded that these initial efforts had made considerable progress in establishing the role of PET in the understanding of the biochemical processes underlying mental illness. In particular, the unique ability to quantify regional neuroreceptor density at different stages in the evolution of the disease has been implemented. At the same time, the work so far and this conference served to identify the main sources contributing to the different findings from the two centers. This information will be important in designing the next phase of the research which will build upon and reconcile these apparent discrepancies.

Original languageEnglish (US)
Pages (from-to)471-484
Number of pages14
JournalSchizophrenia Bulletin
Volume14
Issue number3
StatePublished - 1988
Externally publishedYes

Fingerprint

Neostriatum
Positron-Emission Tomography
Schizophrenia
Education
Biochemical Phenomena
Aptitude
Brain
Sensory Receptor Cells
Systems Analysis
Research
Pharmacology
human DRD2 protein
Pharmaceutical Preparations
Population

ASJC Scopus subject areas

  • Psychiatry and Mental health

Cite this

Andreasen, N. C., Carson, R., Diksic, M., Evans, A., Farde, L., Gjedde, A., ... Sedvall, G. (1988). Workshop on schizophrenia, PET, and dopamine D2 receptors in the human neostriatum. Schizophrenia Bulletin, 14(3), 471-484.

Workshop on schizophrenia, PET, and dopamine D2 receptors in the human neostriatum. / Andreasen, N. C.; Carson, R.; Diksic, M.; Evans, A.; Farde, L.; Gjedde, A.; Hakim, A.; Lal, S.; Nair, N.; Sedvall, G.

In: Schizophrenia Bulletin, Vol. 14, No. 3, 1988, p. 471-484.

Research output: Contribution to journalArticle

Andreasen, NC, Carson, R, Diksic, M, Evans, A, Farde, L, Gjedde, A, Hakim, A, Lal, S, Nair, N & Sedvall, G 1988, 'Workshop on schizophrenia, PET, and dopamine D2 receptors in the human neostriatum.', Schizophrenia Bulletin, vol. 14, no. 3, pp. 471-484.
Andreasen NC, Carson R, Diksic M, Evans A, Farde L, Gjedde A et al. Workshop on schizophrenia, PET, and dopamine D2 receptors in the human neostriatum. Schizophrenia Bulletin. 1988;14(3):471-484.
Andreasen, N. C. ; Carson, R. ; Diksic, M. ; Evans, A. ; Farde, L. ; Gjedde, A. ; Hakim, A. ; Lal, S. ; Nair, N. ; Sedvall, G. / Workshop on schizophrenia, PET, and dopamine D2 receptors in the human neostriatum. In: Schizophrenia Bulletin. 1988 ; Vol. 14, No. 3. pp. 471-484.
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