Cited by 49Stress Responses and CortisolAdrenal Hormones and DisordersNeuropeptides and Animal Physiology

Mechanisms of activation of the pituitary-adrenal axis by tissue injury in the rat.

Turnbull, A.V., Dow, R.C., Hopkins, S.J., White, A., Fink, G., Rothwell, N.J.·1994·Psychoneuroendocrinology

Abstract

To characterize the mechanisms of the pituitary-adrenal (P-A) response to tissue injury, rats were injected intramuscularly (IM) with turpentine. This resulted in marked elevations in the plasma concentrations of ACTH and corticosterone within the first hour after injection, which were attenuated by either total deafferentation of the medial basal hypothalamus (MBH) or neonatal capsaicin pretreatment. The plasma concentrations of corticosterone remained elevated for 18 h in the turpentine-injected rats, despite a return of ACTH toward control values (by 2-4 h). Bioactive concentrations of interleukin-6 (IL-6) in plasma rose markedly after turpentine, and its concentrations were significantly correlated with plasma corticosterone concentrations 4-8 h after turpentine. Pretreatment with IL-1 receptor antagonist (IL-1ra) attenuated the release of IL-6 and had a marginal effect on the corticosterone response 6 h after turpentine. These results suggest that the early and late phase of the P-A response to tissue injury are mediated by different mechanisms.

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Crossref · 10.1016/0306-4530(94)90006-x

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Authors
Turnbull, A. V., Dow, R. C., Hopkins, S. J., White, A., Fink, G., & Rothwell, N. J.
Affiliations
  • University of Manchester (GB)
  • University of Edinburgh (GB)
Corresponding author
Turnbull, A.V.
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
1994
Volume
19
Issue
2
Pages
165-178
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2135823847
Cited by
49
References
36
Citations by year
2026: 1 · 2013: 1 · 2012: 1
FWCI
2.43
Type
journal article
Language
en
Open access
closed
Locations
  • Psychoneuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (publishedVersion)
Funders
Wellcome Trust
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
pituitary-adrenal axis, tissue damage, ACTH, corticosterone, turpentine, interleukin-6, interleukin-1 receptor antagonist, medial basal hypothalamus, capsaicin, deafferentation, stress response
MeSH terms
Acute-Phase Reaction, Adrenocorticotropic Hormone, Afferent Pathways, Animals, Animals, Newborn, Arousal, Capsaicin, Corticosterone, Hypothalamo-Hypophyseal System, Inflammation, Male, Nociceptors, Pituitary-Adrenal System, Turpentine, Interleukin-6, Rats, Sprague-Dawley, Receptors, Interleukin-1, Rats

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