Evidence map›Paper›PMID 19183150›Full record

ArticleAlimentary pharmacology & therapeutics2009

Duodenal mastocytosis, eosinophilia and intraepithelial lymphocytosis as possible disease markers in the irritable bowel syndrome and functional dyspepsia.

M M Walker, N J Talley, M Prabhakar, C J Pennaneac'h, P Aro, J Ronkainen, T Storskrubb, W S Harmsen, A R Zinsmeister, L Agreus

Open access · bronzeAbstract read
In one paragraph

Article in Alimentary pharmacology & therapeutics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed, 3 pooled it
10.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

105 citing papers in PubMed, 3 syntheses or guidelines pooled it, 260 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Pooled it
  4. Determination of Biopsy Yield That Optimally Detects Eosinophilic Gastritis and/or Duodenitis in a Randomized Trial of Lirentelimab.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2022
    Trial
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  8. Article
  9. Article
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  12. Article
  13. Approach to Meal-Related Nausea and Vomiting.Gastroenterology & hepatology · 2025
    Article
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  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article

45 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 4 countries.

M M WalkerDepartment of Histopathology, Faculty of Medicine, St Mary's Campus, Imperial College, London, UK. mm.walker@imperial.ac.uk
N J Talley
M Prabhakar
C J Pennaneac'h
P Aro
J Ronkainen
T Storskrubb
W S Harmsen
A R Zinsmeister
L Agreus
Karolinska Institutet · SEMayo Clinic · USSt Mary's Hospital · GBImperial College London · GBMayo Clinic in Florida · US

Funding

Antidepressant Therapy for Functional DyspepsiaU01DK065713 · NIDDK · MAYO CLINIC ROCHESTER · PI LOCKE, GILES RICHARD · 2005 to 2011
$5.0M
NIDDK NIH HHS U01 DK065713
6 · The paper itself

Abstract

backgroundIrritable bowel syndrome (IBS) and functional dyspepsia (FD) are common functional disorders without defined pathology. Mast cells and eosinophils interact with T lymphocytes and may alter enteric nerve and smooth muscle function.

aimTo examine mast cell, eosinophil and intraepithelial lymphocyte populations in duodenal biopsies of subjects with IBS and FD.

methodsA random sample of an adult Swedish population (n = 1001; mean age 54 years; 51% female) underwent upper endoscopy and biopsy; 51 cases with FD and 41 cases with IBS were compared with 48 randomly selected controls. Eosinophils were identified by light microscopy; mast cells by immunocytochemistry (CD117). Intraepithelial lymphocytes were counted per 100 enterocytes. Cell counts were quantified by counting the number per high power field (HPF) in 5HPFs in the bulb (D1) and second part of duodenum (D2), summed over 5HPFs at each site.

resultsCases and controls showed similar demographics. Compared to controls, IELs in IBS-constipation were significantly increased (P = 0.005). Mast cells were significantly increased in IBS in D2 (P < 0.001), while eosinophils were significantly increased in FD in D1 and D2 (P < 0.001).

conclusionDuodenal mast cell hyperplasia is linked to IBS and eosinophilia to FD, and duodenal biopsy may identify subsets of these disorders.

Indexed as

BiomarkersCase-Control StudiesDuodenal DiseasesDyspepsiaEosinophiliaFemaleHumansImmunohistochemistryIntestinal MucosaIrritable Bowel SyndromeLymphocytosisMaleMastocytosisMiddle AgedBiomarkers

Identifiers

PMID19183150
PMCPMC4070654
OpenAlexW1966575505

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.