Cited by 77Neurotransmitter Receptor Influence on BehaviorMedical Imaging Techniques and ApplicationsSchizophrenia research and treatment

Assessment of endogenous dopamine release by methylphenidate challenge using iodine-123 iodobenzamide single-photon emission tomography

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Booij, J., Korn, P, Linszen, D. H., van Royen, E. A.·1997·European Journal of Nuclear Medicine

Abstract

This double-blind, placebo-controlled study assessed pharmacologically induced endogenous dopamine (DA) release in healthy male volunteers (n=12). Changes in endogenous DA release after injection of the psychostimulant drug methylphenidate were evaluated by single-photon emission tomography (SPET) and constant infusion of iodine-123 iodobenzamide ([123I]IBZM), a D2 receptor radioligand that is sensitive to endogenous DA release. Methylphenidate induced displacement of striatal [123I]IBZM binding, resulting in a significantly decrease in the specific to non-specific [123I]IBZM uptake ratio (average: 8.6%) in comparison with placebo (average: -1.9%). Moreover, injection of methylphenidate induced significant behavioural responses on the following items: excitement, anxiety, tension, and mannerisms and posturing. The results of this study demonstrate the feasibility of using constant infusion of [123I]IBZM and SPET imaging to measure endogenous DA release after methylphenidate challenge and to investigate neurochemical aspects of behaviour.

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  • Methylphenidate increases striatal dopamine availability, as measured by reductions in ligand binding potential in PET studies.

    “Methylphenidate has also been shown to increase striatal DA availability, as measured by reductions in ligand binding potential in PET studies (165, 166, 170, 178, 179, 181, 182, 187, 190, 191), with evidence to indicate that this effect is related to binding to the DAT (185, 186, 188).”

    From The pharmacology of amphetamine and methylphenidate: Relevance to the neurobiology of attention-deficit/hyperactivity disorder and other psychiatric comorbidities (2018) · cites this paper as [165]

    The Results report that methylphenidate significantly reduced striatal radioligand uptake, and the Discussion reports a similar reduction in a human raclopride PET study. But this paper’s own measurement used [123I]IBZM single-photon emission tomography (SPET), not PET, so it does not itself provide the PET evidence implied by the citation. (LLM, conf=0.86)

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Research works printed but not linked: 11

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Authors
Booij, J., Korn, P., Linszen, D. H., & van Royen, E. A.
Affiliations
Amsterdam UMC Location University of Amsterdam (NL)
Venue
European Journal of Nuclear Medicine
Published
1997-06
Volume
24
Issue
6
Pages
674-677
ISSN
  • 1619-7070 (ISSN-L)
  • 0340-6997
  • 1619-7089
OpenAlex
W2107173687
Cited by
77
References
0
Citations by year
2023: 1 · 2021: 1 · 2020: 2 · 2019: 1 · 2018: 2 · 2017: 2 · 2015: 2 · 2014: 8 · 2013: 4 · 2012: 5
FWCI
1.71
Type
journal article
Language
en
Open access
Locations
  • European Journal of Nuclear Medicine and Molecular Imaging (publishedVersion)
  • PubMed (publishedVersion)
  • UvA-DARE (University of Amsterdam) (publishedVersion)
  • UvA-DARE (University of Amsterdam) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
endogenous dopamine release, [123I]IBZM, striatum, psychostimulants, behavioral responses
MeSH terms
Adult, Central Nervous System Stimulants, Behavior, Benzamides, Brain, Dopamine, Double-Blind Method, Humans, Iodine Radioisotopes, Male, Methylphenidate, Pyrrolidines, Tomography, Emission-Computed, Single-Photon, Dopamine Antagonists, Dopamine Uptake Inhibitors

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