Cited by 48Neurotransmitter Receptor Influence on BehaviorRegulation of Appetite and ObesityEating Disorders and Behaviors

Dopamine Depletion Reduces Food-Related Reward Activity Independent of BMI

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Frank, Sabine, Veit, Ralf, Sauer, Helene, Enck, Paul, Friederich, Hans-Christoph, Unholzer, Theresa, Bauer, Ute-Maria, Linder, Katarzyna +3 more·2016·Neuropsychopharmacology

Abstract

Reward sensitivity and possible alterations in the dopaminergic-reward system are associated with obesity. We therefore aimed to investigate the influence of dopamine depletion on food-reward processing. We investigated 34 female subjects in a randomized placebo-controlled, within-subject design (body mass index (BMI)=27.0 kg/m(2) ±4.79 SD; age=28 years ±4.97 SD) using an acute phenylalanine/tyrosine depletion drink representing dopamine depletion and a balanced amino acid drink as the control condition. Brain activity was measured with functional magnetic resonance imaging during a 'wanting' and 'liking' rating of food items. Eating behavior-related traits and states were assessed on the basis of questionnaires. Dopamine depletion resulted in reduced activation in the striatum and higher activation in the superior frontal gyrus independent of BMI. Brain activity during the wanting task activated a more distributed network than during the liking task. This network included gustatory, memory, visual, reward, and frontal regions. An interaction effect of dopamine depletion and the wanting/liking task was observed in the hippocampus. The interaction with the covariate BMI was significant in motor and control regions but not in the striatum. Our results support the notion of altered brain activity in the reward and prefrontal network with blunted dopaminergic action during food-reward processing. This effect is, however, independent of BMI, which contradicts the reward-deficiency hypothesis. This hints to the hypothesis suggesting a different or more complex mechanism underlying the dopaminergic reward function in obesity.

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Crossref · 10.1038/npp.2015.313

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Authors
Frank, S., Veit, R., Sauer, H., Enck, P., Friederich, H.-C., Unholzer, T., Bauer, U.-M., Linder, K., Heni, M., Fritsche, A., & Preissl, H.
Affiliations
  • University of Tübingen (DE)
  • German Center for Diabetes Research (DE)
  • Universitätsklinikum Tübingen (DE)
  • University Hospital Heidelberg (DE)
Corresponding author
Frank, Sabine
Venue
Neuropsychopharmacology
Published
2015-10-09
Volume
41
Issue
6
Pages
1551-1559
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2324696545
Cited by
48
References
70
Citations by year
2026: 5 · 2025: 1 · 2024: 4 · 2023: 3 · 2022: 6 · 2021: 6 · 2020: 4 · 2019: 2 · 2018: 5 · 2017: 5 · 2016: 5 · 2014: 2
FWCI
2.32
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Site cant be reached (submittedVersion)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion)
Funders
  • European Commission (607310, FP7/2007)
  • Bundesministerium für Bildung und Forschung (01GI1332, 01GI1122F)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
Keywords
dopamine depletion, food reward, obesity, reward sensitivity, striatum, superior frontal gyrus, hippocampus, body mass index, dietary habits
MeSH terms
Adult, Amino Acids, Brain, Brain Chemistry, Corpus Striatum, Dopamine, Female, Food, Hippocampus, Humans, Magnetic Resonance Imaging, Obesity, Reward, Body Mass Index, Single-Blind Method, Prefrontal Cortex, Young Adult, Functional Neuroimaging

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