Cited by 34Gastrointestinal motility and disordersNeuropeptides and Animal PhysiologyMast cells and histamine

Acute restraint stress activates functional NK1 receptor in the colon of female rats: involvement of steroids

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Bradesi, S, Eutamene, H, Fioramonti, J, Bueno, L·2002·Gut

Abstract

Background and aims: Psychological factors have been implicated in the aetiology of irritable bowel syndrome characterised by intestinal altered motility and visceral hypersensitivity. Similar disorders have been found in rats under stressful conditions. The role of tachykinins in bowel dysfunctions caused by stress is not fully documented. Therefore, we investigated the influence of stress on NK1 receptor activation at the colonic level in female rats. Methods: The stress procedure used consisted of two hours of partial restraint. Histamine release was measured from colonic samples of control and stressed animals and the effect of SR140333, a NK1 receptor antagonist, on substance P induced histamine release was determined. Involvement of steroids has been evaluated in this response. Results: NK1 receptor antagonist was found to inhibit substance P induced histamine release in samples from stressed female rats but not in samples from control animals. Previous treatment of female rats with RU 486 abolished this effect observed in stressed animals. Similarly, in samples from stressed female rats previously ovariectomised, SR140333 failed to inhibit substance P induced histamine release but previous treatment with both progesterone and oestrogen restored its effect. Conclusions: Stress induces NK1 receptor activation in the colon, and ovarian steroids are involved in this response.

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  1. Metcalfe DD, Baram D, Meroki Y. Mast cells. Physiol Rev 1997;77:1033-79.
  2. Maa J, Grady EF, Kim H, et al. NK1 recptor desensitization and neutral endopeptidase terminate SP-induced pancreatic plasma extravasation. Am J Physiol 2000;279:G726-32.

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Authors
Bradesi, S., Eutamene, H., Fioramonti, J., & Bueno, L.
Affiliations
  • Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR)
  • Ecole Supérieure d'Agriculture de Purpan, 31076 Toulouse Cedex, France
Corresponding author
Bueno, L
Venue
Gut
Publisher
BMJ
Published
2002-03
Volume
50
Issue
3
Pages
349-354
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W1983354885
Cited by
34
References
53
Citations by year
2026: 1 · 2025: 1 · 2022: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2015: 1 · 2014: 2
FWCI
2.52
Type
journal article
Language
en
Open access
Locations
  • Gut (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • HighWire Press Open Archive (submittedVersion)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Immunology and Microbiology › Immunology › Mast cells and histamine
Keywords
acute restraint stress, neurokinin-1 receptor, substance P, histamine release, colonic mucosa, irritable bowel syndrome, tachykinins, ovarian steroids, progesterone, estrogen, ovariectomy, SR140333, female rats
MeSH terms
Animals, Colon, Female, Histamine Release, Hormone Antagonists, Ovary, Peptide Fragments, Piperidines, Quinuclidines, Restraint, Physical, Gonadal Steroid Hormones, Stress, Psychological, Substance P, Mifepristone, Rats, Wistar, Receptors, Neurokinin-1, Rats, Neurokinin-1 Receptor Antagonists

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