Cited by 1,475Gastrointestinal motility and disordersMast cells and histamineCongenital gastrointestinal and neural anomalies

The DOI matches its Crossref record; 58 of the 60 references it cites were found in a registry or an index.

Activated mast cells in proximity to colonic nerves correlate with abdominal pain in irritable bowel syndrome

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Abstract

Background & aims The mechanisms underlying abdominal pain perception in irritable bowel syndrome (IBS) are poorly understood. Intestinal mast cell infiltration may perturb nerve function leading to symptom perception. We assessed colonic mast cell infiltration, mediator release, and spatial interactions with mucosal innervation and their correlation with abdominal pain in IBS patients.Methods IBS patients were diagnosed according to Rome II criteria and abdominal pain quantified according to a validated questionnaire. Colonic mucosal mast cells were identified immunohistochemically and quantified with a computer-assisted counting method. Mast cell tryptase and histamine release were analyzed immunoenzymatically. Intestinal nerve to mast cell distance was assessed with electron microscopy.Results Thirty-four out of 44 IBS patients (77%) showed an increased area of mucosa occupied by mast cells as compared with controls (9.2% +/- 2.5% vs. 3.3 +/- 0.8%, respectively; P < 0.001). There was a 150% increase in the number of degranulating mast cells (4.76 +/- 3.18/field vs. 2.42 +/- 2.26/field, respectively; P = 0.026). Mucosal content of tryptase was increased in IBS and mast cells spontaneously released more tryptase (3.22 +/- 3.48 pmol/min/mg vs. 0.87 +/- 0.65 pmol/min/mg, respectively; P = 0.015) and histamine (339.7 +/- 59.0 ng/g vs. 169.3 +/- 130.6 ng/g, respectively; P = 0.015). Mast cells located within 5 microm of nerve fibers were 7.14 +/- 3.87/field vs. 2.27 +/- 1.63/field in IBS vs. controls (P < 0.001). Only mast cells in close proximity to nerves were significantly correlated with severity and frequency of abdominal pain/discomfort (P < 0.001 and P = 0.003, respectively).Conclusions Colonic mast cell infiltration and mediator release in proximity to mucosal innervation may contribute to abdominal pain perception in IBS patients.

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Authors
Barbara, G., Stanghellini, V., De Giorgio, R., Cremon, C., Cottrell, G. S., Santini, D., Pasquinelli, G., Morselli-Labate, A. M., Grady, E. F., Bunnett, N. W., Collins, S. M., & Corinaldesi, R.
Affiliations
  • University of Bologna (IT)
  • University of California, San Francisco (US)
  • McMaster University (CA)
Corresponding author
Barbara, Giovanni
Venue
Gastroenterology
Publisher
Elsevier BV
Published
2004-03
Volume
126
Issue
3
Pages
693-702
ISSN
0016-5085 (ISSN-L)
OpenAlex
W1976068711
Cited by
1,475
References
60
Citations by year
2026: 49 · 2025: 39 · 2024: 49 · 2023: 70 · 2022: 64 · 2021: 74 · 2020: 55 · 2019: 44 · 2018: 74 · 2017: 73 · 2016: 77 · 2015: 71 · 2014: 79 · 2013: 66 · 2012: 84
FWCI
56.33
Type
journal article
Language
en
Open access
Locations
  • Gastroenterology (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
  • Institutional Research Information System University of Ferrara (University of Ferrara) (submittedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (DK 57840, DK 43207, R01DK057840)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Immunology and Microbiology › Immunology › Mast cells and histamine
  • Health Sciences › Medicine › Surgery › Congenital gastrointestinal and neural anomalies
Keywords
irritable bowel syndrome, mast cells, abdominal pain, colonic mucosa, enteric nerves, mast cell degranulation, tryptase, histamine release, visceral pain perception, mast cell infiltration
MeSH terms
Adult, Aged, Cell Count, Colon, Female, Histamine Release, Humans, Immunohistochemistry, Intestinal Mucosa, Male, Mast Cells, Microscopy, Electron, Middle Aged, Nervous System, Serine Endopeptidases, Blotting, Western, Cell Degranulation, Abdominal Pain, Irritable Bowel Syndrome, Tryptases

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