Cited by 123Stress Responses and CortisolAdrenal Hormones and DisordersNeuropeptides and Animal Physiology

Stress-induced sensitization: the hypothalamic–pituitary–adrenal axis and beyond

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Belda, Xavier, Fuentes, Silvia, Daviu, Nuria, Nadal, Roser, Armario, Antonio·2015·Stress

Abstract

Exposure to certain acute and chronic stressors results in an immediate behavioral and physiological response to the situation followed by a period of days when cross-sensitization to further novel stressors is observed. Cross-sensitization affects to different behavioral and physiological systems, more particularly to the hypothalamus-pituitary-adrenal (HPA) axis. It appears that the nature of the initial (triggering) stressor plays a major role, HPA cross-sensitization being more widely observed with systemic or high-intensity emotional stressors. Less important appears to be the nature of the novel (challenging) stressor, although HPA cross-sensitization is better observed with short duration (5-15 min) challenging stressors. In some studies with acute immune stressors, HPA sensitization appears to develop over time (incubation), but most results indicate a strong initial sensitization that progressively declines over the days. Sensitization can affect other physiological system (i.e. plasma catecholamines, brain monoamines), but it is not a general phenomenon. When studied concurrently, behavioral sensitization appears to persist longer than that of the HPA axis, a finding of interest regarding long-term consequences of traumatic stress. In many cases, behavioral and physiological consequences of prior stress can only be observed following imposition of a new stressor, suggesting long-term latent effects of the initial exposure.

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Authors
Belda, X., Fuentes, S., Daviu, N., Nadal, R., & Armario, A.
Affiliations
Universitat Autònoma de Barcelona (ES)
Corresponding author
Armario, Antonio
Venue
Stress
Published
2015-05-04
Volume
18
Issue
3
Pages
269-279
ISSN
  • 1025-3890 (ISSN-L)
  • 1607-8888
OpenAlex
W1756324357
Cited by
123
References
128
Citations by year
2026: 6 · 2025: 11 · 2024: 10 · 2023: 14 · 2022: 10 · 2021: 7 · 2020: 17 · 2019: 11 · 2018: 11 · 2017: 15 · 2016: 8 · 2015: 2
FWCI
0.97
Type
journal article
Language
en
Open access
Locations
  • Stress (publishedVersion)
  • PubMed (publishedVersion)
  • Dipòsit Digital de Documents de la UAB (Universitat Autònoma de Barcelona) (submittedVersion, public-domain)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, public-domain)
Funders
  • Generalitat de Catalunya (SGR 2014-1020, SGR 2014)
  • Ministerio de Economía y Competitividad (SAF2011-28313)
  • Plan Nacional sobre Drogas
  • Instituto de Salud Carlos III (RD12/0028/0014)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
cross-sensitization, hypothalamic-pituitary-adrenal axis, acute stress, chronic stress, emotional stressors, incubation, plasma catecholamines, brain monoamines, behavioral sensitization, traumatic stress
MeSH terms
Adrenocorticotropic Hormone, Animals, Catecholamines, Corticosterone, Humans, Hypothalamo-Hypophyseal System, Pituitary-Adrenal System, Stress Disorders, Post-Traumatic, Stress, Psychological, Central Nervous System Sensitization

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