Cited by 74Neuroendocrine regulation and behaviorStress Responses and CortisolNeuropeptides and Animal Physiology

Peripheral oxytocin administration buffers autonomic but not behavioral responses to environmental stressors in isolated prairie voles

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Grippo, Angela J., Pournajafi-Nazarloo, Hossein, Sanzenbacher, Lisa, Trahanas, Diane M., McNeal, Neal, Clarke, Deirdre A., Porges, Stephen W., Sue Carter, C.·2012·Stress

Abstract

Negative social experiences such as social stressors and isolation influence mental and physical illnesses, including affective disorders and heart disease. Studies focused on socially monogamous prairie voles can provide insight into neurobiological systems that underlie the consequences of negative social interactions. Female prairie voles were exposed to 28 days of social isolation or pairing with a female sibling (control). Voles were administered daily oxytocin [20 μg/50 μl, subcutaneous (sc)] or saline vehicle (50 μl, sc) for 14 days and exposed to two behavioral stressors [elevated plus maze (EPM) and resident-intruder test]. Brain tissue was collected for analysis of central peptide levels in the hypothalamic paraventricular nucleus (PVN). Isolation produced autonomic changes [increased heart rate (HR) and decreased HR variability) during both acute stressors and increased anxiety behaviors in the EPM. Oxytocin injection prevented the autonomic consequences of the acute stressors in isolated prairie voles, but did not affect the behaviors tested under the present conditions. Oxytocin had no effect on the behavioral or autonomic responsiveness in paired prairie voles. Oxytocin injection may exert a beneficial effect on autonomic responses to stressors in isolated animals through increasing the number of oxytocin-containing neurons and decreasing the number of corticotropin-releasing hormone-containing neurons in the PVN. Oxytocinergic mechanisms may serve to compensate for autonomic responses associated with chronic isolation and exposure to both social and non-social acute stressors.

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  1. Porges SW Bohrer RE Cacioppo JT Tassinary LG Analyses of periodic processes in psychophysiological research Principles of psychophysiology: physical, social, and inferential elements 1990 708 753 Cambridge University Press New York
  2. Sgoifo A Koolhaas J Alleva E Musso E Parmigiani S Social stress: acute and long-term effects on physiology and behavior Physiol. Behav 2001 73 253 254 11438349
  3. Task Force of the European Society of Cardiology, North American Society of Pacing and Electrophysiology Heart rate variability: standards of measurement, physiological interpretation, and clinical use Circulation 1996 93 1043 1065 8598068

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Authors
Grippo, A. J., Pournajafi-Nazarloo, H., Sanzenbacher, L., Trahanas, D. M., McNeal, N., Clarke, D. A., Porges, S. W., & Sue Carter, C.
Affiliations
  • Northern Illinois University (US)
  • University of Illinois Chicago (US)
Corresponding author
Grippo, Angela J.
Venue
Stress
Published
2011-08-19
Volume
15
Issue
2
Pages
149-161
ISSN
  • 1025-3890 (ISSN-L)
  • 1607-8888
OpenAlex
W1887417181
Cited by
74
References
54
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 3 · 2022: 4 · 2021: 3 · 2020: 2 · 2019: 7 · 2018: 5 · 2017: 9 · 2016: 9 · 2015: 9 · 2014: 10 · 2013: 4 · 2012: 2
FWCI
6.98
Type
journal article
Language
en
Open access
Locations
  • Stress (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Northern Illinois University
  • China Scholarship Council
  • National Institutes of Health
  • University of Illinois at Urbana-Champaign
  • National Institute of Mental Health (MH77581, R21MH077581, MH 67446, MH 73233, F32MH073233, MH72935, R21MH067446, R01MH072935)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
oxytocin, Microtus ochrogaster, social isolation, social stress, autonomic stress response, heart rate variability, anxiety, hypothalamic paraventricular nucleus, corticotropin-releasing factor, oxytocinergic neurons, elevated plus maze, resident-intruder test, social monogamy
MeSH terms
Animals, Anxiety, Autonomic Nervous System, Behavior, Animal, Corticotropin-Releasing Hormone, Arvicolinae, Environment, Female, Oxytocin, Paraventricular Hypothalamic Nucleus, Social Isolation, Stress, Psychological, Down-Regulation

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