Evidence map›Paper›PMID 35185343›Full record

ArticleClinical and experimental gastroenterology2022

Mucosal Gene Transcript Signatures in Treatment Naïve Inflammatory Bowel Disease: A Comparative Analysis of Disease to Symptomatic and Healthy Controls in the European IBD-Character Cohort.

Simen Svendsen Vatn, Jonas Christoffer Lindstrøm, Aina E F Moen, Stephan Brackmann, Tone M Tannæs, Christine Olbjørn, Daniel Bergemalm, Åsa V Keita, Fernando Gomollon, Trond Espen Detlie and 10 more

Open access · goldAbstract read
In one paragraph

Article in Clinical and experimental gastroenterology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Role of Mitochondria in Inflammatory Bowel Diseases: A Systematic Review.International journal of molecular sciences · 2023
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Mitochondrial function and gastrointestinal diseases.Nature reviews. Gastroenterology & hepatology · 2024
    Review
  11. Article
  12. Challenges in IBD Research 2024: Precision Medicine.Inflammatory bowel diseases · 2024
    Review
  13. Article
  14. Article
  15. Article
  16. 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

20 authors at 8 institutions in 4 countries.

Simen Svendsen Vatn *Department of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.ORCID 0000-0002-6124-4995
Jonas Christoffer Lindstrøm *Health Services Research Unit (HØKH), Akershus University Hospital, Lørenskog, Norway.
Aina E F MoenDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.ORCID 0000-0002-1892-846X
Stephan BrackmannDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Tone M TannæsDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.ORCID 0000-0001-5789-9203
Christine OlbjørnDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Daniel BergemalmDepartment of Gastroenterology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Åsa V KeitaDepartment of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
Fernando GomollonDigestive Diseases Unit, IIS Aragón, Zaragoza, Spain.ORCID 0000-0003-0076-3529
Trond Espen DetlieDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Torben LüdersSection for Clinical Molecular Biology (EpiGen), Akershus University Hospital, Lørenskog, Norway.
Rahul KallaGastrointestinal Unit, Centre for Genomics and Molecular Medicine, Division of Medical and Radiological Sciences, University of Edinburgh, Edinburgh, UK.ORCID 0000-0002-3276-6751
Alex AdamsGastrointestinal Unit, Centre for Genomics and Molecular Medicine, Division of Medical and Radiological Sciences, University of Edinburgh, Edinburgh, UK.
Jack SatsangiGastrointestinal Unit, Centre for Genomics and Molecular Medicine, Division of Medical and Radiological Sciences, University of Edinburgh, Edinburgh, UK.
Jørgen JahnsenDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.ORCID 0000-0002-0419-2914
Morten H VatnDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Jonas HalfvarsonDepartment of Gastroenterology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.ORCID 0000-0003-0122-7234
Petr RicanekDepartment of Gastroenterology, Division of Medicine, Akershus University Hospital, Lørenskog, Norway.ORCID 0000-0003-2454-7388
Hilde NilsenDepartment of Clinical Molecular Biology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
IBD-CHARACTER consortium
University of Oslo · NOAkershus University Hospital · NONorwegian Institute of Public Health · NOÖrebro University · SEUniversity of Oxford · GBEdinburgh Genomics · GBInstituto de Investigación Sanitaria Aragón · ESLinköping University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies of the mucosal transcriptomic landscape have given new insight into the pathogenesis of inflammatory bowel disease (IBD). Recently, the predictive biomarker potential of gene expression signatures has been explored. To further investigate the mucosal gene expression in IBD, we recruited a cohort of treatment naïve patients and compared them to both symptomatic and healthy controls.

methodsAltogether, 323 subjects were included: Crohn's disease (N = 75), ulcerative colitis (N = 87) and IBD unclassified (N = 3). Additionally, there were two control groups: symptomatic controls (N = 131) and healthy controls (N = 27). Mucosal biopsies were collected during ileocolonoscopy and gene expression in inflamed and non-inflamed mucosa was explored. Gene expression profiling was performed using Agilent G3 Human Gene Expression 860K v3 One-Color microarray. We recorded information about treatment escalation to anti-TNF agents or surgery, and anti-TNF response, to explore predictive opportunities of the mucosal transcriptome.

resultsGene expression profiles in symptomatic controls in whom IBD had been excluded resembled that of IBD patients and diverged from that of healthy controls. In non-inflamed Crohn's disease and ulcerative colitis, gene set enrichment analysis revealed dysregulation of pathways involved in basic cellular biological processes. Mitochondria-associated pathways were dysregulated both in non-inflamed and inflamed Crohn's disease and ulcerative colitis (>2.6 normalized enrichment scores <-1.8). Gene expression signatures of Crohn's disease and ulcerative colitis did not predict time for treatment escalation (p = 0.175). No significant association was found between gene expression signatures and anti-TNF response.

conclusionNon-inflamed samples are probably superior to inflamed samples when exploring gene expression signatures in IBD and might reveal underlying mechanisms central for disease initiation. The gene expression signatures of the control groups were related to if they were symptomatic or not, which may have important implications for future study designs.

Indexed as

Crohn’s diseasehealthy controlsmitochondriamucosal transcriptomenon-inflamedpredictionsymptomatic controlsulcerative colitis

Identifiers

PMID35185343
PMCPMC8848803
OpenAlexW4210959028

What OpenQuestion holds

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Registered trials

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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.