Evidence map›Paper›PMID 36157543›Full record

ArticleWorld journal of gastroenterology2022

Involvement of toll-like receptor 5 in mouse model of colonic hypersensitivity induced by neonatal maternal separation.

Geoffroy Mallaret, Amandine Lashermes, Mathieu Meleine, Ludivine Boudieu, Julie Barbier, Youssef Aissouni, Agathe Gelot, Benoit Chassaing, Andrew T Gewirtz, Denis Ardid and 1 more

Abstract read
In one paragraph

Article in World journal of gastroenterology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Pathology of pain and its implications for therapeutic interventions.Signal transduction and targeted therapy · 2024
    Review
  5. Review
  6. PasteurizedGut microbes
    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

11 authors.

Geoffroy MallaretDepartment of Pharmacology, UMR 1107 NeuroDol, University of Clermont Auvergne, Clermont-Ferrand 63000, France.
Amandine LashermesDepartment of Microbiology, Université Paris-Saclay, National Research Institute for Agriculture, Food and the Environment, AgroParisTech, Micalis Institute, Jouy-en-Josas 78350, France.
Mathieu MeleineDepartment of Pharmacology, UMR 1107 NeuroDol, University of Clermont Auvergne, Clermont-Ferrand 63000, France.
Ludivine BoudieuDepartment of Pharmacology, UMR 1107 NeuroDol, University of Clermont Auvergne, Clermont-Ferrand 63000, France.
Julie BarbierDepartment of Pharmacology, UMR 1107 NeuroDol, University of Clermont Auvergne, Clermont-Ferrand 63000, France.
Youssef AissouniDepartment of Pharmacology, UMR 1107 NeuroDol, University of Clermont Auvergne, Clermont-Ferrand 63000, France.
Agathe GelotDepartment of Pharmacology, UMR 1107 NeuroDol, University of Clermont Auvergne, Clermont-Ferrand 63000, France.
Benoit ChassaingTeam "Mucosal Microbiota in Chronic Inflammatory Diseases", INSERM U1016, CNRS UMR 8104, Université Paris Cité, Paris 75014, France.
Andrew T GewirtzCenter for Inflammation, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA30033, United States.
Denis ArdidDepartment of Pharmacology, UMR 1107 NeuroDol, University of Clermont Auvergne, Clermont-Ferrand 63000, France.
Frederic Antonio CarvalhoDepartment of Pharmacology, INSERM 1107 NeuroDOL/University of Clermont Auvergne, Clermont-Ferrand 63000, France. frederic.carvalho@inserm.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic abdominal pain is the most common cause for gastroenterology consultation and is frequently associated with functional gastrointestinal disorders including irritable bowel syndrome and inflammatory bowel disease. These disorders present similar brain/gut/microbiota trialogue alterations, associated with abnormal intestinal permeability, intestinal dysbiosis and colonic hypersensitivity (CHS). Intestinal dysbiosis can alter colon homeostasis leading to abnormal activation of the innate immunity that promotes CHS, perhaps involving the toll-like receptors (TLRs), which play a central role in innate immunity.

aimTo understand the mechanisms between early life event paradigm on intestinal permeability, fecal microbiota composition and CHS development in mice with TLRs expression in colonocytes.

methodsMaternal separation model (NMS) CHS model, which mimics deleterious events in childhood that can induce a wide range of chronic disorders during adulthood were used. Colonic sensitivity of NMS mice was evaluated by colorectal distension (CRD) coupled with intracolonic pressure variation (IPV) measurement. Fecal microbiota composition was analyzed by 16S rRNA sequencing from weaning to CRD periods. TLR mRNA expression was evaluated in colonocytes. Additionally, the effect of acute intrarectal instillation of the TLR5 agonist flagellin (FliC) on CHS in adult naive wildtype mice was analyzed.

resultsAround 50% of NMS mice exhibited increased intestinal permeability and CHS associated with intestinal dysbiosis, characterized by a significant decrease of species richness, an alteration of the core fecal microbiota and a specific increased relative abundance of flagellated bacteria. Only TLR5 mRNA expression was increased in colonocytes of NMS mice with CHS. Acute intrarectal instillation of FliC induced transient increase of IPV, reflecting transient CHS appearance.

conclusionAltogether, these data suggest a pathophysiological continuum between intestinal dysbiosis and CHS, with a role for TLR5.

Indexed as

DysbiosisToll-Like Receptor 5AnimalsColonDisease Models, AnimalFlagellinMaternal DeprivationMiceRNA, MessengerRNA, Ribosomal, 16SToll-Like ReceptorsFlagellinRNA, MessengerRNA, Ribosomal, 16STlr5 protein, mouseToll-Like Receptor 5Toll-Like ReceptorsChronic abdominal painColonic hypersensitivityEarly life eventsIntestinal microbiotaToll-like receptors

Identifiers

PMID36157543
PMCPMC9367235

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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.