Cited by 54Smoking Behavior and CessationNicotinic Acetylcholine Receptors StudyNeurotransmitter Receptor Influence on Behavior

Lack of effect of acute dopamine precursor depletion in nicotine-dependent smokers

Casey, Kevin F., Benkelfat, Chawki, Young, Simon N., Leyton, Marco·2006·European Neuropsychopharmacology

Abstract

Rationale Nicotine increases dopamine (DA) release but its role in nicotine dependence remains unclear.Objective To assess the role of DA in nicotine craving and self-administration using acute phenylalanine/tyrosine depletion (APTD).Methods Fifteen nicotine-dependent men ingested, a minimum of 3days apart, a nutritionally balanced amino acid (AA) mixture (BAL), a mixture deficient in the catecholamine precursors, phenylalanine and tyrosine, and APTD followed by the immediate DA precursor, L-DOPA. Beginning 3h after ingestion of the AA mixture, subjects smoked 4 cigarettes. Craving, mood, and other aspects of subjective state were assessed with self-report scales. Smoking puff topography was measured with a computerized flowmeter.Results APTD did not change smoking puff topography, cigarette craving, or subjective effects of smoking.Conclusions The findings suggest that in nicotine-dependent smokers craving for cigarettes, subjective effects of nicotine, and the self-administration of freely available cigarettes are largely unrelated to acute changes in DA neurotransmission.

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Crossref · 10.1016/j.euroneuro.2006.02.002

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Authors
Casey, K. F., Benkelfat, C., Young, S. N., & Leyton, M.
Affiliations
McGill University (CA)
Corresponding author
Leyton, Marco
Venue
European Neuropsychopharmacology
Publisher
Elsevier BV
Published
2006-10
Volume
16
Issue
7
Pages
512-520
ISSN
0924-977X (ISSN-L)
OpenAlex
W2037230797
Cited by
54
References
79
Citations by year
2020: 43 · 2018: 2 · 2016: 1 · 2015: 1 · 2012: 1
FWCI
1.10
Type
journal article
Language
en
Open access
closed
Locations
  • European Neuropsychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
nicotine dependence, dopamine, nicotine craving, L-DOPA, dopamine precursor, nicotine self-administration, mood
MeSH terms
Adult, Dopamine, Humans, Levodopa, Male, Pain Measurement, Phenylalanine, Surveys and Questionnaires, Self Administration, Time Factors, Tobacco Use Disorder, Tyrosine, Dopamine Agents, Diet, Protein-Restricted

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