Cited by 271Neuroendocrine regulation and behaviorStress Responses and CortisolNeurotransmitter Receptor Influence on Behavior

Effects of early life stress on adult male aggression and hypothalamic vasopressin and serotonin.

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Veenema, Alexa H., Blume, Annegret, Niederle, Daniela, Buwalda, Bauke, Neumann, Inga D.·2006·European Journal of Neuroscience

Abstract

Early life stress in humans enhances the risk for psychopathologies, including excessive aggression and violence. In rodents, maternal separation is a potent early life stressor inducing long-lasting changes in emotional and neuroendocrine responsiveness to stress, associated with depression- and anxiety-like symptoms. However, effects of maternal separation on adult male aggression and underlying neurobiological mechanisms remain unknown. Therefore, we investigated the effects of maternal separation on adult intermale aggression in Wistar rats and on hypothalamic arginine vasopressin (AVP) mRNA expression, and AVP and serotonin (5-HT) immunoreactivity, as both AVP and 5-HT have been implicated in stress-coping and aggression. We showed that maternal separation induced depression-like behaviour (increased immobility) and higher adrenocorticotropin hormone responses to an acute stressor (forced swimming). Intermale aggression (lateral threat, offensive upright and keep down) was significantly higher in maternally separated rats compared with control rats. AVP mRNA expression and AVP immunoreactivity were higher in the hypothalamic paraventricular and supraoptic nuclei upon resident-intruder test exposure, whereas 5-HT immunoreactivity was decreased in the anterior hypothalamus of maternally separated rats. Moreover, 5-HT immunoreactivity in the anterior hypothalamus and supraoptic nucleus correlated negatively with aggression. These findings show that exposure to early life st…

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Crossref · 10.1111/j.1460-9568.2006.05045.x

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Authors
Veenema, A. H., Blume, A., Niederle, D., Buwalda, B., & Neumann, I. D.
Affiliations
  • University of Regensburg (DE)
  • University of Groningen (NL)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2006-09
Volume
24
Issue
6
Pages
1711-1720
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2070173588
Cited by
271
References
6
Citations by year
2026: 4 · 2025: 6 · 2024: 1 · 2023: 12 · 2022: 15 · 2021: 16 · 2020: 13 · 2019: 14 · 2018: 15 · 2017: 14 · 2016: 17 · 2015: 14 · 2014: 21 · 2013: 20 · 2012: 18
FWCI
14.69
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • University of Regensburg Publication Server (University of Regensburg) (acceptedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, other-oa)
Funders
  • Volkswagen Foundation
  • Bayerische Forschungsstiftung
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 › Neurotransmitter Receptor Influence on Behavior
Keywords
early life stress, maternal separation, male-male aggression, vasopressin, serotonin, hypothalamus, depression-like behavior, ACTH, stress coping, paraventricular nucleus, supraoptic nucleus, resident-intruder test, Wistar rats
MeSH terms
Adrenocorticotropic Hormone, Aggression, Animals, Animals, Newborn, Behavior, Animal, Corticosterone, Female, Hypothalamus, Immunohistochemistry, Male, Maternal Deprivation, Radioimmunoassay, Restraint, Physical, Serotonin, Stress, Psychological, Testosterone, Vasopressins, Rats, Wistar, In Situ Hybridization, Rats

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