Evidence map›Paper›PMID 34965194›Full record

ArticleGut microbes

Alteration of the gut microbiota following SARS-CoV-2 infection correlates with disease severity in hamsters.

Valentin Sencio, Arnaud Machelart, Cyril Robil, Nicolas Benech, Eik Hoffmann, Chloé Galbert, Lucie Deryuter, Séverine Heumel, Aline Hantute-Ghesquier, Anne Flourens and 14 more

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 66 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 2% 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

66 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.

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  15. Respiratory diseases and the gut microbiota: an updated review.Frontiers in cellular and infection microbiology · 2025
    Review
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  17. ISME communications · 2025
    Article
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6 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

24 authors at 5 institutions in 4 countries.

Valentin SencioUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Arnaud MachelartUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Cyril RobilUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Nicolas BenechSorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, F-75012 Paris, France.
Eik HoffmannUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Chloé GalbertSorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, F-75012 Paris, France.
Lucie DeryuterUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Séverine HeumelUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Aline Hantute-GhesquierInstitut Pasteur de Lille, F-59000 Lille, France.
Anne FlourensInstitut Pasteur de Lille, F-59000 Lille, France.
Priscille BrodinUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Fabrice InfantiInstitut Pasteur de Lille, F-59000 Lille, France.
Virgile RichardSciempathlabo, F-37270 Larçay, France.
Jean DubuissonUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Corinne GrangetteUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Thierry SulpicePhysiogenex, 280 rue de l'Hers, F-31750 Escalquens, France.
Isabelle WolowczukUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
Florence PinetUniv. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, F-59000 Lille, France.
Vincent PrévotUniv. Lille, Inserm, CHU Lille, UMR-S1172, EGID and DISTALZ, F-59000 Lille, France.
Sandrine BelouzardUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
François BriandPhysiogenex, 280 rue de l'Hers, F-31750 Escalquens, France.
Martine Duterque-CoquillaudInstitut Pasteur de Lille, F-59000 Lille, France.
Harry SokolSorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, F-75012 Paris, France.ORCID 0000-0002-2914-1822
François TrotteinUniv. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.ORCID 0000-0003-3373-1814
Centre National de la Recherche Scientifique · FRInserm · FRPhysiogenex (France) · FRInstitut Pasteur de Lille · FRXLAB (Slovenia) · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mounting evidence suggests that the gut-to-lung axis is critical during respiratory viral infections. We herein hypothesized that disruption of gut homeostasis during severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection may associate with early disease outcomes. To address this question, we took advantage of the Syrian hamster model. Our data confirmed that this model recapitulates some hallmark features of the human disease in the lungs. We further showed that SARS-CoV-2 infection associated with mild intestinal inflammation, relative alteration in intestinal barrier property and liver inflammation and altered lipid metabolism. These changes occurred concomitantly with an alteration of the gut microbiota composition over the course of infection, notably characterized by a higher relative abundance of deleterious bacterial taxa such as Enterobacteriaceae and Desulfovibrionaceae. Conversely, several members of the Ruminococcaceae and Lachnospiraceae families, including bacteria known to produce the fermentative products short-chain fatty acids (SCFAs), had a reduced relative proportion compared to non-infected controls. Accordingly, infection led to a transient decrease in systemic SCFA amounts. SCFA supplementation during infection had no effect on clinical and inflammatory parameters. Lastly, a strong correlation between some gut microbiota taxa and clinical and inflammation indices of SARS-CoV-2 infection severity was evidenced. Collectively, alteration of the gut microbiota correlates with disease severity in hamsters making this experimental model valuable for the design of interventional, gut microbiota-targeted, approaches for the control of COVID-19.

Indexed as

Disease Models, AnimalGastrointestinal MicrobiomeMesocricetusAnimalsBacteriaCOVID-19COVID-19 Drug TreatmentCricetinaeFatty Acids, VolatileHumansMaleSARS-CoV-2Severity of Illness IndexFatty Acids, Volatilecovid-19gut microbiotahamstersmarkers of disease severitySARS-CoV-2

Identifiers

PMID34965194
PMCPMC8726722
OpenAlexW4206298581

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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.