Cited by 30Stress Responses and CortisolNeuroendocrine regulation and behaviorChild Abuse and Trauma

Long-term programing of psychopathology-like behaviors in male rats by peripubertal stress depends on individual’s glucocorticoid responsiveness to stress

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Walker, Sophie E., Sandi, Carmen·2018·Stress

Abstract

Experience of adversity early in life and dysregulation of hypothalamus-pituitary-adrenocortical (HPA) axis activity are risk factors often independently associated with the development of psychopathological disorders, including depression, PTSD and pathological aggression. Additional evidence suggests that in combination these factors may interact to shape the development and expression of psychopathology differentially, though little is known about underlying mechanisms. Here, we studied the long-term consequences of early life stress exposure on individuals with differential constitutive glucocorticoid responsiveness to repeated stressor exposure, assessing both socio-affective behaviors and brain activity in regions sensitive to pathological alterations following stress. Two rat lines, genetically selected for either low or high glucocorticoid responsiveness to repeated stress were exposed to a series of unpredictable, fear-inducing stressors on intermittent days during the peripuberty period. Results obtained at adulthood indicated that having high glucocorticoid responses to repeated stress and having experience of peripuberty stress independently enhanced levels of psychopathology-like behaviors, as well as increasing basal activity in several prefrontal and limbic brain regions in a manner associated with enhanced behavioral inhibition. Interestingly, peripuberty stress had a differential impact on aggression in the two rat lines, enhancing aggression in the low-responsive line but not in the already high-aggressive, high-responsive rats. Taken together, these findings indicate that aberrant HPA axis activity around puberty, a key period in the development of social repertoire in both rats and humans, may alter behavior such that it becomes anti-social in nature.

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Crossref · 10.1080/10253890.2018.1435639

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Authors
Walker, S. E., & Sandi, C.
Affiliations
École Polytechnique Fédérale de Lausanne (CH)
Corresponding author
Sandi, Carmen
Venue
Stress
Published
2018-02-07
Volume
21
Issue
5
Pages
433-442
ISSN
  • 1025-3890 (ISSN-L)
  • 1607-8888
OpenAlex
W2791430760
Cited by
30
References
44
Citations by year
2026: 1 · 2025: 1 · 2023: 3 · 2022: 3 · 2021: 6 · 2020: 2 · 2019: 5 · 2018: 9
FWCI
3.16
Type
journal article
Language
en
Open access
Locations
  • Stress (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Funders
  • Swiss National Science Foundation (31003A-152614, 31003A-176206, 51NF40-158776)
  • European Union’s Seventh Framework Program (603016)
  • EPFL
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Social Sciences › Psychology › Clinical Psychology › Child Abuse and Trauma
Keywords
early life stress, glucocorticoid responsiveness, hypothalamic-pituitary-adrenal axis, aggression, behavioral inhibition, prefrontal cortex, social behavior, depression, post-traumatic stress disorder
MeSH terms
Aggression, Animals, Behavior, Animal, Brain, Corticosterone, Fear, Glucocorticoids, Hypothalamo-Hypophyseal System, Male, Pituitary-Adrenal System, Receptors, Glucocorticoid, Species Specificity, Stress, Psychological, Rats

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