Evidence map›Paper›PMID 23760301›Full record

ArticleClinical and translational gastroenterology2013

Study of the viral and microbial communities associated with Crohn's disease: a metagenomic approach.

Vicente Pérez-Brocal, Rodrigo García-López, Jorge F Vázquez-Castellanos, Pilar Nos, Belén Beltrán, Amparo Latorre, Andrés Moya

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Clinical and translational gastroenterology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03994224 (A Prospective Longitudinal Study of Fecal Microbiome and Calprotectin to Predict Response to Biological Therapy in Patients With Crohn's Disease), which is not on this map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
10.9field-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.

NCT03994224 terminatednot on this mapstarted 2019, after this paper: background citation

A Prospective Longitudinal Study of Fecal Microbiome and Calprotectin to Predict Response to Biological Therapy in Patients With Crohn's Disease

TypeobservationalSponsorChinese University of Hong KongRan2019 to 2022Enrolled13ConditionsCrohn Disease, Perianal Crohn Disease
3 · Its place in the literature

Who cites it

81 citing papers in PubMed, 1 synthesis or guideline pooled it, 132 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Gut virome profile in new onset treatment naïve Saudi children with ulcerative colitis.Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association · 2025
    Article
  5. Review
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  11. Gut microbiota signatures in inflammatory bowel disease.United European gastroenterology journal · 2024
    Article
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  15. Article
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  20. The Periodontopathic Pathogen,Pathogens (Basel, Switzerland) · 2022
    Article

21 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

7 authors at 3 institutions in 1 country.

Vicente Pérez-Brocal1] Área de Genómica y Salud, Centro Superior de Investigación en Salud Pública-Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (CSISP-FISABIO), Valencia, Spain [2] CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain [3] Departamento de Genética, Cavanilles Institute on Biodiversity and Evolutionary Biology, University of València, Valencia, Spain.
Rodrigo García-López
Jorge F Vázquez-Castellanos
Pilar Nos
Belén Beltrán
Amparo Latorre
Andrés Moya
Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana · ESUniversitat de València · ESCentro de Investigación Biomédica en Red de Epidemiología y Salud Pública · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aimed to analyze and compare the diversity and structure of the viral and microbial communities in fecal samples from a control group of healthy volunteers and from patients affected by Crohn's disease (CD).

methodsHealthy adult controls (n=8) and patients affected by ileocolic CD (n=11) were examined for the viral and microbial communities in their feces and, in one additional case, in the intestinal tissue. Using two different approaches, we compared the viral and microbial communities in several ways: by group (patients vs. controls), entity (viruses vs. bacteria), read assembly (unassembled vs. assembled reads), and methodology (our approach vs. an existing pipeline). Differences in the viral and microbial composition, and abundance between the two groups were analyzed to identify taxa that are under- or over-represented.

resultsA lower diversity but more variability between the CD samples in both virome and microbiome was found, with a clear distinction between groups based on the microbiome. Only ≈5% of the differential viral biomarkers are more represented in the CD group (Synechococcus phage S CBS1 and Retroviridae family viruses), compared with 95% in the control group. Unrelated patterns of bacteria and bacteriophages were observed.

conclusionsOur use of an extensive database is critical to retrieve more viral hits than in previous approaches. Unrelated patterns of bacteria and bacteriophages may be due to uneven representation of certain viruses in databases, among other factors. Further characterization of Retroviridae viruses in the CD group could be of interest, given their links with immunodeficiency and the immune responses. To conclude, some methodological considerations underlying the analysis of the viral community composition and abundance are discussed.

Identifiers

PMID23760301
PMCPMC3696940
OpenAlexW2116570187

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.