Evidence map›Paper›PMID 34016947›Full record

Trial reportTranslational psychiatry2021

Probiotics-induced changes in gut microbial composition and its effects on cognitive performance after stress: exploratory analyses.

Mirjam Bloemendaal, Joanna Szopinska-Tokov, Clara Belzer, David Boverhoff, Silvia Papalini, Franziska Michels, Saskia van Hemert, Alejandro Arias Vasquez, Esther Aarts

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Translational psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 4 pooled it
–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

64 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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4 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

9 authors.

Mirjam Bloemendaal *Departments of Psychiatry and Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands. mirjam.bloemendaal@radboudumc.nl.ORCID http://orcid.org/0000-0001-5897-0649
Joanna Szopinska-Tokov *Departments of Psychiatry and Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands.ORCID http://orcid.org/0000-0001-8608-5081
Clara BelzerLaboratory of Microbiology, Wageningen University, Wageningen, The Netherlands.
David BoverhoffDonders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, the Netherlands.
Silvia PapaliniDonders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, the Netherlands.
Franziska MichelsDonders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, the Netherlands.
Saskia van HemertWinclove Probiotics, Amsterdam, the Netherlands.ORCID http://orcid.org/0000-0002-1098-1477
Alejandro Arias Vasquez *Departments of Psychiatry and Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands.
Esther Aarts *Donders Institute for Brain Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University, Nijmegen, the Netherlands.

Funding

EC | Horizon 2020 Framework Programme (EU Framework Programme for Research and Innovation H2020) 643051EC | Horizon 2020 Framework Programme (EU Framework Programme for Research and Innovation H2020) 728018Nederlandse Organisatie voor Wetenschappelijk Onderzoek (Netherlands Organisation for Scientific Research) 016.135.023Nederlandse Organisatie voor Wetenschappelijk Onderzoek (Netherlands Organisation for Scientific Research) 057-14-001
6 · The paper itself

Abstract

Stress negatively affects cognitive performance. Probiotics remediate somatic and behavioral stress responses, hypothetically by acting on the gut microbiota. Here, in exploratory analyses, we assessed gut microbial alterations after 28-days supplementation of multi-strain probiotics (EcologicBarrier consisting of Lactobacilli, Lactococci, and Bifidobacteria in healthy, female subjects (probiotics group n = 27, placebo group n = 29). In an identical pre-session and post-session, subjects performed a working memory task before and after an acute stress intervention. Global gut microbial beta diversity changed over time, but we were not able to detect differences between intervention groups. At the taxonomic level, Time by Intervention interactions were not significant after multiple comparison correction; the relative abundance of eight genera in the probiotics group was higher (uncorrected) relative to the placebo group: Butyricimonas, Parabacteroides, Alistipes, Christensenellaceae_R-7_group, Family_XIII_AD3011_group, Ruminococcaceae_UCG-003, Ruminococcaceae_UCG-005, and Ruminococcaceae_UCG-010. In a second analysis step, association analyses were done only within this selection of microbial genera, revealing the probiotics-induced change in genus Ruminococcaceae_UCG-003 was significantly associated with probiotics' effect on stress-induced working memory changes (r

Indexed as

CognitionGastrointestinal MicrobiomeProbioticsBacteriaFemaleHumansStress, PsychologicalYoung Adult

Identifiers

PMID34016947
PMCPMC8137885

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.