Cited by 269Neurotransmitter Receptor Influence on BehaviorSubstance Abuse Treatment and OutcomesSchizophrenia research and treatment

Striatal D2 dopamine receptor binding characteristics in vivo in patients with alcohol dependence

Hietala, Jarmo, West, Curt, Syvälahti, Erkka, Någren, Kjell, Lehikoinen, Pertti, Sonninen, Pirkko, Ruotsalainen, Ulla·1994·Psychopharmacology

Abstract

Striatal D2 dopamine receptor characteristics of nine male patients with alcohol dependence abstinent for 1-68 weeks and eight healthy male volunteers were studied in vivo with positron emission tomography. The selective D2 receptor ligand [11C]raclopride and equilibrium model was used for D2 receptor density (Bmax) and affinity (Kd) measurements. A trend for a decreased striatal D2 receptor density and for reduced D2 receptor affinity was observed in patients with alcohol dependence. These parameters were not statistically significantly different between alcoholics and controls, but the ratio between D2 receptor density and affinity (Bmax/Kd or the striatum/cerebellum ratio from the high specific activity scan) was highly significantly lower in alcoholics than that of controls. In conclusion, the low D2 dopamine receptor Bmax/Kd ratio (striatum/cerebellum ratio) indicates that specific aspects of striatal [11C]raclopride binding in vivo are deviant in alcoholics compared to controls. The result is compatible with a reduced avidity of striatal dopamine D2 receptors in alcoholics, which is in line with the idea that D2 dopaminergic mechanisms are involved in the biology of alcohol dependence in man.

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Crossref · 10.1007/bf02245330

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Authors
Hietala, J., West, C., Syvälahti, E., Någren, K., Lehikoinen, P., Sonninen, P., & Ruotsalainen, U.
Affiliations
  • University of Turku (FI)
  • Turku University Hospital (FI)
Venue
Psychopharmacology
Published
1994-11
Volume
116
Issue
3
Pages
285-290
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W1993691356
Cited by
269
References
49
Citations by year
2026: 4 · 2025: 6 · 2024: 5 · 2023: 2 · 2022: 7 · 2021: 12 · 2020: 4 · 2019: 7 · 2018: 9 · 2017: 9 · 2016: 10 · 2015: 11 · 2014: 12 · 2013: 10 · 2012: 13
FWCI
1.81
Type
journal article
Language
en
Open access
closed
Locations
  • Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
alcoholism, dopamine D2 receptor, striatum, [11C]raclopride, receptor density, receptor binding affinity, receptor avidity
MeSH terms
Adult, Alcoholism, Humans, Male, Salicylamides, Tomography, Emission-Computed, Tomography, X-Ray Computed, Neostriatum, Receptors, Dopamine D2, Dopamine Antagonists, Raclopride

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