Evidence map›Paper›PMID 34530674›Full record

ArticleGut microbes

Deprivation of dietary fiber in specific-pathogen-free mice promotes susceptibility to the intestinal mucosal pathogen

Mareike Neumann, Alex Steimle, Erica T Grant, Mathis Wolter, Amy Parrish, Stéphanie Willieme, Dirk Brenner, Eric C Martens, Mahesh S Desai

Open access · goldAbstract read
In one paragraph

Article in Gut microbes. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.9field-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

45 citing papers in PubMed, 76 citations in OpenAlex.

  1. Testosterone administration partially modulates gut microbiota responses to severe energy deficit.American journal of physiology. Endocrinology and metabolism · 2026
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  20. mBio · 2024
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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

9 authors at 4 institutions in 3 countries.

Mareike NeumannDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
Alex SteimleDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
Erica T GrantDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
Mathis WolterDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
Amy ParrishDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
Stéphanie WilliemeDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
Dirk BrennerDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
Eric C MartensDepartment of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, USA.
Mahesh S DesaiDepartment of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.ORCID 0000-0002-9223-2209
University of Luxembourg · LULuxembourg Institute of Health · LUUniversity of Southern Denmark · DKUniversity of Michigan · US

Funding

Low dietary fiber and gut microbiota-induced mucus layer erosion as IBD triggersR01DK118024 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI GRACE Y. CHEN, Eric C Martens · 2018 to 2026
$4.9M
Unraveling the enzymatic pathway of gut bacterial mucus degradation to treat inflammationR01DK125445 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KOROPATKIN, NICOLE M, MARTENS, ERIC C · 2020 to 2023
$2.2M
NIDDK NIH HHS R01 DK118024NIDDK NIH HHS R01 DK125445
6 · The paper itself

Abstract

The change of dietary habits in Western societies, including reduced consumption of fiber, is linked to alterations in gut microbial ecology. Nevertheless, mechanistic connections between diet-induced microbiota changes that affect colonization resistance and enteric pathogen susceptibility are still emerging. We sought to investigate how a diet devoid of soluble plant fibers impacts the structure and function of a conventional gut microbiota in specific-pathogen-free (SPF) mice and how such changes alter susceptibility to a rodent enteric pathogen. We show that absence of dietary fiber intake leads to shifts in the abundances of specific taxa, microbiome-mediated erosion of the colonic mucus barrier, a reduction of intestinal barrier-promoting short-chain fatty acids, and increases in markers of mucosal barrier integrity disruption. Importantly, our results highlight that these low-fiber diet-induced changes in the gut microbial ecology collectively contribute to a lethal colitis by the mucosal pathogen

Indexed as

AnimalsBacteriaCitrobacter rodentiumColitisDietary FiberDiet, WesternDysbiosisEnterobacteriaceae InfectionsFatty Acids, VolatileFeeding BehaviorFemaleIntestinal MucosaMiceMice, Inbred C57BLSpecific Pathogen-Free OrganismsTight JunctionsDietary FiberFatty Acids, Volatilecitrobacter rodentiumdietary fiberMicrobiomemucinmucus layerSPF mice

Identifiers

PMID34530674
PMCPMC8451455
OpenAlexW3200734777

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.