Cited by 115Tryptophan and brain disordersNeurotransmitter Receptor Influence on BehaviorTreatment of Major Depression

The role of dopamine in inflammation-associated depression: mechanisms and therapeutic implications

Felger, Jennifer C.·2016·Current Topics in Behavioral Neurosciences

Abstract

Studies investigating the impact of a variety of inflammatory stimuli on the brain and behavior have consistently reported evidence that inflammatory cytokines affect the basal ganglia and dopamine to mediate depressive symptoms related to motivation and motor activity. Findings have included inflammation-associated reductions in ventral striatal responses to hedonic reward, decreased dopamine and dopamine metabolites in cerebrospinal fluid, and decreased availability of striatal dopamine, all of which correlate with symptoms of anhedonia, fatigue, and psychomotor retardation. Similar relationships between alterations in dopamine-relevant corticostriatal reward circuitry and symptoms of anhedonia and psychomotor slowing have also been observed in patients with major depression who exhibit increased peripheral cytokines and other inflammatory markers, such as C-reactive protein. Of note, these inflammation-associated depressive symptoms are often difficult to treat in patients with medical illnesses or major depression. Furthermore, a wealth of literature suggests that inflammation can decrease dopamine synthesis, packaging, and release, thus sabotaging or circumventing the efficacy of standard antidepressant treatments. Herein, the mechanisms by which inflammation and cytokines affect dopamine neurotransmission are discussed, which may provide novel insights into treatment of inflammation-related behavioral symptoms that contribute to an inflammatory malaise.

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Crossref · 10.1007/7854_2016_13

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Authors
Felger, J. C.
Affiliations
Emory University (US)
Corresponding author
Felger, Jennifer C.
Venue
Current Topics in Behavioral Neurosciences
Published
2016
Volume
31
Pages
199-219
ISSN
  • 1866-3370 (ISSN-L)
  • 1866-3389
OpenAlex
W2408044189
Cited by
115
References
146
Citations by year
2026: 4 · 2025: 15 · 2024: 5 · 2023: 15 · 2022: 19 · 2021: 19 · 2020: 16 · 2019: 11 · 2018: 4 · 2017: 7
FWCI
1.60
Type
book chapter
Language
en
Open access
closed
Locations
  • Current topics in behavioral neurosciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
dopamine, cytokines, anhedonia, psychomotor retardation, ventral striatum, dopamine signaling, C-reactive protein, antidepressant resistance, fatigue, major depressive disorder, dopamine metabolites
MeSH terms
Animals, Depressive Disorder, Dopamine, Humans, Inflammation, Cytokines

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