Evidence map›Paper›PMID 27252786›Full record

ArticleGut pathogens2016

Optimized cultivation of Campylobacter concisus from gut mucosal biopsies in inflammatory bowel disease.

Karina Frahm Kirk, Hans Linde Nielsen, Ole Thorlacius-Ussing, Henrik Nielsen

Open access · goldAbstract read
In one paragraph

Article in Gut pathogens, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 3% 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, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Journal of oral microbiology · 2026
    Article
  6. Genetic Diversity ofMicroorganisms · 2025
    Article
  7. Article
  8. Article
  9. Review
  10. The oral-gut microbiome axis in health and disease.Nature reviews. Microbiology · 2024
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Global epidemiology of campylobacteriosis and the impact of COVID-19.Frontiers in cellular and infection microbiology · 2022
    Review
  20. The role of oral bacteria in inflammatory bowel disease.Nature reviews. Gastroenterology & hepatology · 2021
    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

4 authors at 2 institutions in 1 country.

Karina Frahm KirkDepartment of Infectious Diseases, Aalborg University Hospital, Aalborg, Denmark ; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Hans Linde NielsenDepartment of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark.
Ole Thorlacius-UssingDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark ; Department of Gastrointestinal Surgery, Aalborg University Hospital, Aalborg, Denmark.
Henrik NielsenDepartment of Infectious Diseases, Aalborg University Hospital, Aalborg, Denmark ; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Aalborg University Hospital · DKAalborg University · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCampylobacter concisus is a commensal of the human oral flora that has been linked to prolonged diarrhea and inflammatory bowel disease (IBD). It has been detected more often from intestinal biopsies in patients with IBD compared to healthy controls using PCR-based techniques, whereas the number of C. concisus culture-positive biopsies in previous studies has been very limited. Determining the rate of viable isolates present in the gut mucosa is of great importance when evaluating the role in different disease presentations. We therefore investigated a novel two-step cultivation procedure combining anaerobic and microaerobic incubation from several gut mucosal sites to improve isolate yield, and compared this to PCR results, from IBD patients and healthy controls.

resultsCultivation with the novel two-step procedure yielded a higher rate of C. concisus isolates from mucosal biopsies than previously reported by other methods. From 52 IBD patients, 52/245 (21 %) biopsies were culture positive for C. concisus, while 121/245 (49 %) of biopsies were PCR positive. For 26 healthy controls, the numbers were 23/182 (13 %) and 66/182 (36 %), respectively (p < 0.001). The rate of cultivation and PCR detection was higher for IBD patients compared to healthy controls (p = 0.021, p = 0.008, respectively).

conclusionsPatients with IBD had a higher prevalence of C. concisus than healthy controls, by both cultivation and PCR detection. We found a higher rate of C. concisus isolates from gut mucosal biopsies in both IBD patients and healthy controls than in preceding studies, indicating that colonization of C. concisus in the gastrointestinal tract is more extensive than previously assumed.

Indexed as

Campylobacter concisusCrohn’s diseaseInflammatory bowel diseaseIPAAPouchUlcerative colitis

Identifiers

PMID27252786
PMCPMC4888738
OpenAlexW2415155171

What OpenQuestion holds

Textmetadata
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.