Evidence map›Paper›PMID 34750433›Full record

ArticleScientific reports2021

Faecal microbiota transplantation from patients with depression or healthy individuals into rats modulates mood-related behaviour.

Julie Kristine Knudsen, Thomas Yssing Michaelsen, Caspar Bundgaard-Nielsen, René Ernst Nielsen, Simon Hjerrild, Peter Leutscher, Gregers Wegener, Suzette Sørensen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 4 pooled it
5.7field-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

46 citing papers in PubMed, 4 syntheses or guidelines pooled it, 97 citations in OpenAlex.

  1. Pooled it
  2. Microbiome and well-being: a meta-analysis.NPJ biofilms and microbiomes · 2025
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Beneficial Effects ofNutrients · 2023
    Trial
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
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  14. Assessment of the beneficial effects ofFrontiers in neuroscience · 2026
    Article
  15. Review
  16. Brief Report: Can Fecal Microbiota Transplantation Treat Depression?JGH open : an open access journal of gastroenterology and hepatology · 2026
    Article
  17. Review
  18. Review
  19. Review
  20. 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

8 authors at 5 institutions in 2 countries.

Julie Kristine KnudsenCentre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, 9800, Hjørring, Denmark.
Thomas Yssing MichaelsenDepartment of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.
Caspar Bundgaard-NielsenCentre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, 9800, Hjørring, Denmark.
René Ernst NielsenDepartment of Clinical Medicine, Aalborg University, Aalborg, Denmark.
Simon HjerrildPsychosis Research Unit, Aarhus University Hospital, Aarhus, Denmark.
Peter LeutscherCentre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, 9800, Hjørring, Denmark.
Gregers WegenerTranslational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Suzette SørensenCentre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, 9800, Hjørring, Denmark. Suzette.soerensen@rn.dk.
Aalborg University · DKNorth Denmark Region · DKAalborg University Hospital · DKAarhus University Hospital · DKNorth-West University · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Differences in gut microbiota composition have been observed in patients with major depressive disorder (MDD) compared to healthy individuals. Here, we investigated if faecal microbiota transplantation (FMT) from patients with MDD into rats could induce a depressive-like phenotype. We performed FMT from patients with MDD (FMT-MDD) and healthy individuals (FMT-Healthy) into male Flinders Sensitive Line (FSL) and Flinders Resistant Line (FRL) rats and assessed depressive-like behaviour. No behavioural differences were observed in the FSL rats. In FRL rats, the FMT-Healthy group displayed significantly less depressive-like behaviour than the FMT-MDD group. However, there was no difference in behaviour between FMT-MDD FRL rats and negative controls, indicating that FMT-Healthy FRL rats received beneficial bacteria. We additionally found different taxa between the FMT-MDD and the FMT-Healthy FRL rats, which could be traced to the donors. Four taxa, three belonging to the family Ruminococcaceae and the genus Lachnospira, were significantly elevated in relative abundance in FMT-MDD rats, while the genus Coprococcus was depleted. In this study, the FMT-MDD group was different from the FMT-Healthy group based on behaviour and intestinal taxa.

Indexed as

Fecal Microbiota TransplantationAdultAffectAnimalsBehavior, AnimalDepressionDisease Models, AnimalFemaleGene ExpressionHumansMaleRatsRNA, BacterialRNA, Ribosomal, 16STight Junction ProteinsYoung AdultRNA, BacterialRNA, Ribosomal, 16STight Junction Proteins

Identifiers

PMID34750433
PMCPMC8575883
OpenAlexW3213735253

What OpenQuestion holds

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Registered trials

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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.