Evidence map›Paper›PMID 9245928›Full record

ArticleGut1997

Colonoscopic allergen provocation (COLAP): a new diagnostic approach for gastrointestinal food allergy.

S C Bischoff, J Mayer, J Wedemeyer, P N Meier, G Zeck-Kapp, B Wedi, A Kapp, Y Cetin, M Gebel, M P Manns

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 155 citations in OpenAlex.

  1. Article
  2. Clinical Proteomics Applied to Food Allergy.Advances in experimental medicine and biology · 2026
    Review
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  6. Article
  7. Biological Relevance of Goat Milk Oligosaccharides to Infant Health.Journal of agricultural and food chemistry · 2023
    Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. HumanAsia Pacific allergy · 2019
    Review
  14. Article
  15. New insights in IBS-like disorders: Pandora's box has been opened; a review.Gastroenterology and hepatology from bed to bench · 2017
    Review
  16. Article
  17. Dietary Triggers in Irritable Bowel Syndrome: Is There a Role for Gluten?Journal of neurogastroenterology and motility · 2016
    Review
  18. Review
  19. Article
  20. Irritable bowel syndrome and food interaction.World journal of gastroenterology · 2014
    Review
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 1 institution in 1 country.

S C BischoffDepartment of Gastroenterology and Hepatology, Medical School of Hannover, Germany.
J Mayer
J Wedemeyer
P N Meier
G Zeck-Kapp
B Wedi
A Kapp
Y Cetin
M Gebel
M P Manns
Medizinische Hochschule Hannover · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe clinical relevance of gastrointestinal food allergy in adults is largely unknown because the mechanisms are poorly understood and the diagnosis is difficult to confirm.

aimsTo improve the diagnostic means for confirming intestinal food allergy on an objective basis, a new colonoscopic allergen provocation (COLAP) test was developed. PATIENTS: The COLAP test was performed in 70 adult patients with abdominal symptoms suspected to be related to food allergy, and in five healthy volunteers.

methodsDuring the COLAP test, the caecal mucosa was challenged endoscopically with three food antigen extracts, a buffer control, and a positive control (histamine). The mucosal weal and flare reaction was registered semiquantitatively 20 minutes after challenge, and tissue biopsy specimens were examined for mast cell and eosinophil activation.

resultsNo severe systemic anaphylactic reactions were found in response to intestinal challenge. The COLAP test was positive to at least one food antigen in 54 of 70 patients (77%), whereas no reaction in response to antigen was found in healthy volunteers. Antigen induced weal and flare reactions were correlated with intestinal mast cell and eosinophil activation, as well as with patients' history of adverse reactions to food, but not with serum concentrations of total or specific IgE or skin test results.

conclusionThe COLAP test may be a useful diagnostic measure in patients with suspected intestinal food allergy and may provide a new tool for the study of underlying mechanisms.

Indexed as

AllergensAdolescentAdultAgedChronic DiseaseColonoscopyEosinophilsFemaleFollow-Up StudiesFood HypersensitivityHumansHypersensitivity, ImmediateInflammatory Bowel DiseasesIntestinal MucosaMaleMast CellsAllergens

Identifiers

PMID9245928
PMCPMC1027199
OpenAlexW2047393644

What OpenQuestion holds

Textmetadata
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.