Evidence map›Paper›PMID 20936355›Full record

ArticleDigestive diseases and sciences2011

The neutrophil respiratory burst and bacterial digestion in Crohn's disease.

Bu'Hussain Hayee, Farooq Z Rahman, Jane Tempero, Sara McCartney, Stuart L Bloom, Anthony W Segal, Andrew M Smith

Open access · greenAbstract read
In one paragraph

Article in Digestive diseases and sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

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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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Neutrophils: from IBD to the gut microbiota.Nature reviews. Gastroenterology & hepatology · 2024
    Review
  2. Bacterial Translocation as Inflammatory Driver in Crohn's Disease.Frontiers in cell and developmental biology · 2021
    Review
  3. Review
  4. Article
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  6. Review
  7. Article
  8. Review
  9. Article
  10. What is wrong with granulocytes in inflammatory bowel diseases?Digestive diseases (Basel, Switzerland) · 2013
    Review
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Bu'Hussain HayeeDepartment of Molecular Medicine, University College London, WC1E 6JJ, London, UK. b.hayee@nhs.net
Farooq Z Rahman
Jane Tempero
Sara McCartney
Stuart L Bloom
Anthony W Segal
Andrew M Smith
University College London · GBUCL Australia · AU

Funding

Wellcome Trust 088683
6 · The paper itself

Abstract

backgroundNeutrophils are a key part of the innate immune defence against microbes, using the respiratory burst (RB) to optimise killing and digestion. Previous studies of the neutrophil RB in Crohn's disease (CD) have yielded conflicting results.

methodsSuperoxide production in response to phorbol-myristyl acetate (PMA) was measured in neutrophils from 100 patients with CD compared to 50 healthy controls (HCs) and 50 patients with ulcerative colitis (UC). A further 22 CD and 10 HCs were studied using f-Met-Leu-Phe (fMLP), and digestion of E. coli by neutrophils was also evaluated.

resultsThe mean ± SEM PMA-stimulated RB (nmol O(2)/10(6) cells/min) was 10.86 ± 0.26 in HCs, 9.76 ± 0.23 in CD (P=0.02) and 10.04 ± 0.28 in UC (P=0.09 vs HC and 0.47 vs CD). No significant effect of age, gender or medication was observed. The RB in three patients with presumed CD was found to be in the range expected in patients with inherited neutrophil disorders. Stimulation with fMLP was calcium dependent and attenuated in patients on 5-ASA. Digestion of E. coli by neutrophils was not different in HC vs CD (21.6 vs 20.53%, P=0.60).

conclusionThe significant reduction in neutrophil RB in CD does not appear to result in defective bacterial digestion and is therefore unlikely play a major role in pathogenesis. Three patients in this cohort of patients with presumed idiopathic CD were found to have a profound defect of the neutrophil RB. A high index of suspicion for such patients is prudent, as their prognosis can be improved by altering or augmenting the conventional treatment regimens employed for CD.

Indexed as

Respiratory BurstAdultBacteriaCrohn DiseaseFemaleHumansMaleMiddle AgedNeutrophilsSuperoxidesTetradecanoylphorbol AcetateSuperoxidesTetradecanoylphorbol Acetate

Identifiers

PMID20936355
PMCPMC4568317
OpenAlexW2049665310

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.