Evidence map›Paper›PMID 24040152›Full record

ArticlePloS one2013

Small intestinal nematode infection of mice is associated with increased enterobacterial loads alongside the intestinal tract.

Sebastian Rausch, Josephin Held, André Fischer, Markus M Heimesaat, Anja A Kühl, Stefan Bereswill, Susanne Hartmann

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 149 citations in OpenAlex.

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  16. Microorganisms · 2022
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35 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 4 institutions in 1 country.

Sebastian RauschInstitute of Immunology, Department of Veterinary Medicine, Freie Universität, Berlin, Germany.
Josephin Held
André Fischer
Markus M Heimesaat
Anja A Kühl
Stefan Bereswill
Susanne Hartmann
Charité - Universitätsmedizin Berlin · DEFreie Universität Berlin · DEInstitute of Medical Microbiology and Hygiene · DEInstitut für Hygiene und Umwelt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parasitic nematodes are potent modulators of immune reactivity in mice and men. Intestinal nematodes live in close contact with commensal gut bacteria, provoke biased Th2 immune responses upon infection, and subsequently lead to changes in gut physiology. We hypothesized that murine nematode infection is associated with distinct changes of the intestinal bacterial microbiota composition. We here studied intestinal inflammatory and immune responses in mice following infection with the hookworm Heligmosomoides polygyrus bakeri and applied cultural and molecular techniques to quantitatively assess intestinal microbiota changes in the ileum, cecum and colon. At day 14 post nematode infection, mice harbored significantly higher numbers of γ-Proteobacteria/Enterobacteriaceae and members of the Bacteroides/Prevotella group in their cecum as compared to uninfected controls. Abundance of Gram-positive species such as Lactobacilli, Clostridia as well as the total bacterial load was not affected by worm infection. The altered microbiota composition was independent of the IL-4/-13 - STAT6 signaling axis, as infected IL-4Rα(-/-) mice showed a similar increase in enterobacterial loads. In conclusion, infection with an enteric nematode is accompanied by distinct intestinal microbiota changes towards higher abundance of gram-negative commensal species at the small intestinal site of infection (and inflammation), but also in the parasite-free large intestinal tract. Further studies should unravel the impact of nematode-induced microbiota changes in inflammatory bowel disease to allow for a better understanding of how theses parasites interfere with intestinal inflammation and bacterial communities in men.

Indexed as

Bacterial LoadAnimalsCytokinesEnterobacteriaceaeFemaleInterleukin-4 Receptor alpha SubunitIntestinal Diseases, ParasiticIntestinal MucosaIntestine, SmallMiceMice, KnockoutMicrobiotaNematode InfectionsRNA, BacterialRNA, Ribosomal, 16SSignal TransductionCytokinesInterleukin-4 Receptor alpha SubunitRNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID24040152
PMCPMC3769368
OpenAlexW2158427893

What OpenQuestion holds

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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.