Evidence map›Paper›PMID 18074031›Full record

ArticlePloS one2007

Probiotic Escherichia coli Nissle 1917 inhibits leaky gut by enhancing mucosal integrity.

Sya N Ukena, Anurag Singh, Ulrike Dringenberg, Regina Engelhardt, Ursula Seidler, Wiebke Hansen, André Bleich, Dunja Bruder, Anke Franzke, Gerhard Rogler and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 219 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
219citing papers in PubMed, 1 pooled it
13.0field-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

219 citing papers in PubMed, 1 synthesis or guideline pooled it, 470 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. The interplay between probiotics and mast cells in gut inflammation: a mini-review.Frontiers in cellular and infection microbiology · 2026
    Review
  10. Review
  11. Article
  12. Gut microbes · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Amebicidal Activity ofMicroorganisms · 2025
    Article
  20. Article

159 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

14 authors at 5 institutions in 2 countries.

Sya N UkenaDepartment of Mucosal Immunity, Helmholtz Centre for Infection Research, Braunschweig, Germany.
Anurag Singh
Ulrike Dringenberg
Regina Engelhardt
Ursula Seidler
Wiebke Hansen
André Bleich
Dunja Bruder
Anke Franzke
Gerhard Rogler
Sebastian Suerbaum
Jan Buer
Florian Gunzer
Astrid M Westendorf
Medizinische Hochschule Hannover · DEHelmholtz Centre for Infection Research · DECarl Gustav Carus-Institut · DEEssen University Hospital · DEUniversity Hospital of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProbiotics are proposed to positively modulate the intestinal epithelial barrier formed by intestinal epithelial cells (IECs) and intercellular junctions. Disruption of this border alters paracellular permeability and is a key mechanism for the development of enteric infections and inflammatory bowel diseases (IBDs). METHODOLOGY AND PRINCIPAL

findingsTo study the in vivo effect of probiotic Escherichia coli Nissle 1917 (EcN) on the stabilization of the intestinal barrier under healthy conditions, germfree mice were colonized with EcN or K12 E. coli strain MG1655. IECs were isolated and analyzed for gene and protein expression of the tight junction molecules ZO-1 and ZO-2. Then, in order to analyze beneficial effects of EcN under inflammatory conditions, the probiotic was orally administered to BALB/c mice with acute dextran sodium sulfate (DSS) induced colitis. Colonization of gnotobiotic mice with EcN resulted in an up-regulation of ZO-1 in IECs at both mRNA and protein levels. EcN administration to DSS-treated mice reduced the loss of body weight and colon shortening. In addition, infiltration of the colon with leukocytes was ameliorated in EcN inoculated mice. Acute DSS colitis did not result in an anion secretory defect, but abrogated the sodium absorptive function of the mucosa. Additionally, intestinal barrier function was severely affected as evidenced by a strong increase in the mucosal uptake of Evans blue in vivo. Concomitant administration of EcN to DSS treated animals resulted in a significant protection against intestinal barrier dysfunction and IECs isolated from these mice exhibited a more pronounced expression of ZO-1. CONCLUSION AND SIGNIFICANCE: This study convincingly demonstrates that probiotic EcN is able to mediate up-regulation of ZO-1 expression in murine IECs and confer protection from the DSS colitis-associated increase in mucosal permeability to luminal substances.

Indexed as

Escherichia coliProbioticsAnimalsBase SequenceBlotting, WesternColitisDNA PrimersFemaleFluorescent Antibody TechniqueGerm-Free LifeIntestinal MucosaMiceMice, Inbred BALB CDNA Primers

Identifiers

PMID18074031
PMCPMC2110898
OpenAlexW2149362751

What OpenQuestion holds

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LicenceCC BY
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.