Cited by 89Neuroendocrine regulation and behaviorNeurotransmitter Receptor Influence on BehaviorNeuropeptides and Animal Physiology

Oxytocin reduces ethanol self-administration in mice

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King, Courtney E., Griffin, William C., Luderman, Lauryn N., Kates, Malcolm M., McGinty, Jacqueline F., Becker, Howard C.·2017·Alcoholism: Clinical and Experimental Research

Abstract

Background: Excessive ethanol (EtOH) consumption remains an important health concern and effective treatments are lacking. The central oxytocin system has emerged as a potentially important therapeutic target for alcohol and drug addiction. These studies tested the hypothesis that oxytocin reduces EtOH consumption. Methods: Male C57 BL/6J mice were given access to EtOH (20% v/v) using a model of binge‐like drinking (“drinking in the dark”) that also included the use of lickometer circuits to evaluate the temporal pattern of intake as well as 2‐bottle choice drinking in the home cage. In addition, EtOH (12% v/v) and sucrose (5% w/v) self‐administration on fixed‐ and progressive‐ratio schedules were also evaluated. A wide range of systemically administered oxytocin doses were tested (0 to 10 mg/kg) in these models. Results: Oxytocin (0, 0.3, 1, 3, or 10 mg/kg) dose dependently reduced EtOH consumption (maximal 45% reduction) in the binge drinking model, with lower effective doses having minimal effects on general locomotor activity. Oxytocin's effect was blocked by pretreatment with an oxytocin receptor antagonist, and the pattern of contacts (licks) at the EtOH bottle suggested a reduction in motivation to drink EtOH. Oxytocin decreased 2‐bottle choice drinking without altering general fluid intake. Oxytocin also reduced operant responding for EtOH and sucrose in a dose‐related manner. However, oxytocin decreased responding and motivation (breakpoint values) for EtOH at doses that did not alter responding for sucrose. Conclusions: These results indicate that oxytocin reduces EtOH consumption in different models of self‐administration. The effects are not likely due to a general sedative effect of the neuropeptide. Further, oxytocin reduces motivation for EtOH at doses that do not alter responding for a natural reward (sucrose). While some evidence supports a role for oxytocin receptors in mediating these effects, additional studies are needed to further elucidate underlying mechanisms. Nevertheless, these results support the therapeutic potential of oxytocin as a treatment for alcohol use disorder.

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Authors
King, C. E., Griffin, W. C., Luderman, L. N., Kates, M. M., McGinty, J. F., & Becker, H. C.
Affiliations
Medical University of South Carolina (US)
Corresponding author
Becker, Howard C.
Venue
Alcoholism: Clinical and Experimental Research
Publisher
Wiley
Published
2017-03-27
Volume
41
Issue
5
Pages
955-964
ISSN
  • 0145-6008 (ISSN-L)
  • 1530-0277
OpenAlex
W2588711109
Cited by
89
References
39
Citations by year
2026: 4 · 2025: 7 · 2024: 4 · 2023: 5 · 2022: 11 · 2021: 13 · 2020: 10 · 2019: 9 · 2018: 18 · 2017: 8
FWCI
17.63
Type
journal article
Language
en
Open access
Locations
  • Alcoholism Clinical and Experimental Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Alcohol Abuse and Alcoholism (P50 AA010761, U01 AA014095, U01 AA020929)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
oxytocin, ethanol self-administration, alcoholism, binge drinking, drinking in the dark, sucrose self-administration, operant responding, oxytocin receptor antagonist, neuropeptide therapy
MeSH terms
Ethanol, Animals, Conditioning, Operant, Dose-Response Relationship, Drug, Locomotion, Male, Mice, Inbred C57BL, Oxytocin, Self Administration, Mice, Binge Drinking

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