Cited by 403Neuroendocrine regulation and behaviorNeuropeptides and Animal PhysiologyNeurotransmitter Receptor Influence on Behavior

The neuropeptide oxytocin facilitates pro-social behavior and prevents social avoidance in rats and mice

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Lukas, Michael, Toth, Iulia, Reber, Stefan O, Slattery, David A, Veenema, Alexa H, Neumann, Inga D·2011·Neuropsychopharmacology

Abstract

Social avoidance and social phobia are core symptoms of various psychopathologies but their underlying etiology remains poorly understood. Therefore, this study aims to reveal pro-social effects of the neuropeptide oxytocin (OT), under both basal and stress-induced social avoidance conditions in rodents using a social preference paradigm. We initially show that intracerebroventricular (i.c.v.) application of an OT receptor antagonist (OTR-A) in naïve male rats (0.75 μg/5 μl), or mice (20 μg/2 μl), reduced social exploration of a novel con-specific indicative of attenuated social preference. Previous exposure of male rats to a single social defeat resulted in loss of their social preference and social avoidance, which could be restored by i.c.v. infusion of synthetic OT (0.1 μg/5 μl) 20 min before the social preference test. Although the amygdala has been implicated in both social and OT-mediated actions, bilateral OTR-A (0.1 μg/1 μl) or OT (0.01 μg/1 μl) administration into various subnuclei of the amygdala did not affect basal or stress-induced social preference behavior, respectively. Finally, we demonstrate the social specificity of these OT-mediated effects by showing that neither an arginine vasopressin V1a receptor antagonist (0.75 μg/5 μl, i.c.v.) nor the anxiogenic drug pentylenetetrazol (15 mg/kg, i.p.) altered social preference, with OTR-A not affecting non-social anxiety on the elevated plus-maze. Overall, the data indicate that the basal activity of the endogenous brain OT system is sufficient to promote natural occurring social preference in rodents while synthetic OT shows potential to reverse stress-induced social avoidance and might thus be of use for treating social phobia and social dysfunction in humans.

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Authors
Lukas, M., Toth, I., Reber, S. O., Slattery, D. A., Veenema, A. H., & Neumann, I. D.
Affiliations
  • University of Regensburg (DE)
  • Boston College (US)
Corresponding author
Neumann, Inga D
Venue
Neuropsychopharmacology
Published
2011-06-15
Volume
36
Issue
11
Pages
2159-2168
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2081762124
Cited by
403
References
75
Citations by year
2026: 12 · 2025: 17 · 2024: 24 · 2023: 20 · 2022: 28 · 2021: 33 · 2020: 29 · 2019: 28 · 2018: 26 · 2017: 35 · 2016: 34 · 2015: 37 · 2014: 33 · 2013: 19 · 2012: 20
FWCI
34.92
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • University of Regensburg Publication Server (University of Regensburg) (acceptedVersion)
  • HAL (submittedVersion, other-oa)
  • Trinity's Access to Research Output (TARA) (Trinity College Dublin) (submittedVersion)
Funders
Bundesministerium für Bildung und Forschung
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
oxytocin, social avoidance, social preferences, social anxiety disorder, social defeat, oxytocin receptor antagonist, amygdala, pentylenetetrazole, prosocial behavior, intracerebroventricular infusion
MeSH terms
Animals, Behavior, Animal, Male, Mice, Inbred C57BL, Neuropeptides, Oxytocin, Social Behavior, Social Facilitation, Rats, Wistar, Mice, Rats

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