Cited by 134Neuroendocrine regulation and behaviorNeuropeptides and Animal PhysiologyNeurotransmitter Receptor Influence on Behavior

Oxytocin potently enhances novelty-induced grooming behavior in the rat

Drago, Filippo, Pedersen, Cort A., Caldwell, Jack D., Prange, Arthur J.·1986·Brain Research

Abstract

Intracerebroventricular (i.c.v.) injection of oxytocin was followed by an enhancement of novelty-induced grooming in male and female rats. This effect was dose-dependent, in a dose range of 0.1-10 micrograms. Grooming activity of rats injected i.c.v. with 10 micrograms of oxytocin was 9-fold higher than that of saline-injected controls. The analysis of behavioral element composition revealed an increased occurrence of genital grooming in oxytocin-injected rats. A time-course study revealed a sustained increase in grooming activity of oxytocin-treated rats during 45 min of behavioral testing. Intraperitoneal (i.p.) injection of the dopamine antagonist, haloperidol, totally suppressed oxytocin-enhanced grooming. Furthermore, i.p. injection of the opiate receptor antagonist, naloxone, was followed by an attenuation but not a suppression of grooming enhanced by i.c.v. administration of oxytocin. In addition, a small but significant increase in grooming activity was observed after subcutaneous injection of oxytocin. These results suggest that oxytocin-enhanced grooming behavior involves central mechanisms, e.g. dopamine and opioid transmission in the brain.

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Crossref · 10.1016/0006-8993(86)90573-1

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Authors
Drago, F., Pedersen, C. A., Caldwell, J. D., & Prange, A. J.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Drago, Filippo
Venue
Brain Research
Publisher
Elsevier BV
Published
1986-03
Volume
368
Issue
2
Pages
287-295
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2005322248
Cited by
134
References
48
Citations by year
2026: 1 · 2025: 4 · 2024: 4 · 2023: 1 · 2021: 5 · 2020: 3 · 2019: 7 · 2018: 1 · 2017: 3 · 2016: 4 · 2015: 6 · 2014: 3 · 2013: 4 · 2012: 1
FWCI
15.49
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
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, grooming, dopamine, haloperidol, naloxone, intracerebroventricular administration, dose-response relationship, rats
MeSH terms
Animals, Female, Grooming, Haloperidol, Injections, Intraperitoneal, Injections, Intraventricular, Injections, Subcutaneous, Male, Naloxone, Oxytocin, Rats, Inbred Strains, Sex Characteristics, Time Factors, Rats

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