Cited by 106Neuroendocrine regulation and behaviorNeuropeptides and Animal PhysiologyNeurotransmitter Receptor Influence on Behavior

Oxytocin in the prelimbic medial prefrontal cortex reduces anxiety-like behavior in female and male rats

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Sabihi, Sara, Durosko, Nicole E., Dong, Shirley M., Leuner, Benedetta·2014·Psychoneuroendocrinology

Abstract

The neuropeptide oxytocin (OT) is anxiolytic in rodents and humans. However, the specific brain regions where OT acts to regulate anxiety requires further investigation. The medial prefrontal cortex (mPFC) has been shown to play a role in the modulation of anxiety-related behavior. In addition, the mPFC contains OT-sensitive neurons, expresses OT receptors, and receives long range axonal projections from OT-producing neurons in the hypothalamus, suggesting that the mPFC may be a target where OT acts to diminish anxiety. To investigate this possibility, female rats were administered OT bilaterally into the prelimbic (PL) region of the mPFC and anxiety-like behavior assessed. In addition, to determine if the effects of OT on anxiety-like behavior are sex dependent and to evaluate the specificity of OT, male and female anxiety-like behavior was tested following delivery of either OT or the closely related neuropeptide arginine vasopressin (AVP) into the PL mPFC. Finally, the importance of endogenous OT in the regulation of anxiety-like behavior was examined in male and female rats that received PL infusions of an OT receptor antagonist (OTR-A). Overall, even though males and females showed some differences in their baseline levels of anxiety-like behavior, OT in the PL region of the mPFC decreased anxiety regardless of sex. In contrast, neither AVP nor an OTR-A affected anxiety-like behavior in males or females. Together, these findings suggest that although endogenous OT in the PL region of the mPFC does not influence anxiety, the PL mPFC is a site where exogenous OT may act to attenuate anxiety-related behavior independent of sex.

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Crossref · 10.1016/j.psyneuen.2014.03.009

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Authors
Sabihi, S., Durosko, N. E., Dong, S. M., & Leuner, B.
Affiliations
The Ohio State University (US)
Corresponding author
Leuner, Benedetta
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
2014-07
Volume
45
Pages
31-42
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2103264859
Cited by
106
References
103
Citations by year
2026: 4 · 2025: 10 · 2024: 9 · 2023: 3 · 2022: 6 · 2021: 8 · 2020: 14 · 2019: 13 · 2018: 11 · 2017: 11 · 2016: 6 · 2015: 7 · 2014: 4
FWCI
13.81
Type
journal article
Language
en
Open access
Locations
  • Psychoneuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Public Health Service (R0084148)
  • National Institute of Mental Health (R00MH084148)
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, anxiety-like behavior, vasopressin, oxytocin receptor antagonist, sex differences, anxiolytic effects
MeSH terms
Animals, Anxiety, Behavior, Animal, Female, Male, Oxytocin, Anti-Anxiety Agents, Down-Regulation, Rats, Sprague-Dawley, Prefrontal Cortex, Receptors, Oxytocin, Rats, Infusions, Intraventricular

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