Evidence map›Paper›PMID 32372471›Full record

SynthesisAlimentary pharmacology & therapeutics2020

Systematic review: gastrointestinal infection and incident inflammatory bowel disease.

Jordan E Axelrad, Ken H Cadwell, Jean-Frederic Colombel, Shailja C Shah

Open access · greenAbstract readSystematic Review
In one paragraph

Synthesis in Alimentary pharmacology & therapeutics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
0.8field-weighted citation impact, top 16% 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

39 citing papers in PubMed, 59 citations in OpenAlex.

  1. Microorganisms · 2026
    Article
  2. Review
  3. Article
  4. Protection or Vulnerability? The Context-Dependent Memory of Intestinal Inflammation.Cellular and molecular gastroenterology and hepatology · 2026
    Article
  5. Article
  6. Review
  7. JGH open : an open access journal of gastroenterology and hepatology · 2025
    Review
  8. Review
  9. Review
  10. The Controversies in the Relationship BetweenJournal of clinical medicine · 2025
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Antibiotics (Basel, Switzerland) · 2024
    Review
  20. Article
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

4 authors at 3 institutions in 1 country.

Jordan E AxelradDivision of Gastroenterology, Department of Medicine, NYU School of Medicine, New York, NY, USA.ORCID 0000-0003-1951-7790
Ken H CadwellDivision of Gastroenterology, Department of Medicine, NYU School of Medicine, New York, NY, USA.ORCID 0000-0002-5860-0661
Jean-Frederic ColombelDivision of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.ORCID 0000-0001-6472-249X
Shailja C ShahDivision of Gastroenterology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.ORCID 0000-0002-2049-9959
New York University · USIcahn School of Medicine at Mount Sinai · USVanderbilt University · US

Funding

Translational Analysis CoreP30DK058404 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI RICHARD M. PEEK · 2002 to 2026
$29.9M
Learning Health System Scholar Program at VanderbiltK12HS026395 · AHRQ · VANDERBILT UNIVERSITY MEDICAL CENTER · PI ROTHMAN, RUSSELL L., ROUMIE, CHRISTIANNE L. · 2018 to 2022
$2.7M
Optimization of Helicobacter pylori-related Disease Outcomes in VeteransIK2CX002027 · VA · VETERANS HEALTH ADMINISTRATION · PI SHAILJA C SHAH · 2020 to 2026
–
AHRQ HHS K12 HS026395CSRD VA IK2 CX002027NIDDK NIH HHS P30 DK058404
6 · The paper itself

Abstract

backgroundThe initiating events of chronic gastrointestinal (GI) inflammation in Crohn's disease (CD) and ulcerative colitis (UC) are not well-defined, but GI infections are implicated.

aimsTo define the role of GI infections in risk of incident inflammatory bowel disease (IBD) and synthesise the current body of relevant translational data to provide biological context for associations between GI infections and IBD risk.

methodsWe systematically reviewed electronic databases through February 2020. Clinical studies that provided risk estimates of the association between GI infections and incident IBD were included. Inclusion criteria were broader for translational studies aiming to define mechanisms of GI infections and predisposition to or protection from IBD.

resultsOf the studies identified, 63 met full inclusion criteria. Among studies of clinical gastroenteritis, bacteria-specifically, Salmonella species, Campylobacter species and Clostridioides difficile-demonstrated consistent positive associations with risk of incident IBD. Of viruses, norovirus was associated with increased risk of incident CD. Regarding inverse associations with incident IBD, Helicobacter pylori and helminth infections were associated with a generally consistent reduced risk of IBD. Based on a qualitative analysis of the translational data, putative mechanisms involve multiple microbial and immunologic pathways.

conclusionsBased on this systematic review, certain enteric pathogens are associated with an increased risk of incident IBD, while others are potentially protective. Prospective studies are required to clarify the clinical implications of these enteric pathogens on the risk and course of IBD, and possible therapeutic or preventative benefit.

Indexed as

Colitis, UlcerativeCommunicable DiseasesCrohn DiseaseGastrointestinal DiseasesHelicobacter pyloriHumansIncidenceInflammatory Bowel DiseasesProspective StudiesRisk Factors

Identifiers

PMID32372471
PMCPMC7354095
OpenAlexW3023949789

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.