Evidence map›Paper›PMID 35977540›Full record

ReviewThe journals of gerontology. Series A, Biological sciences and medical sciences2023

The Role of the Gut Microbiome in Diet and Exercise Effects on Cognition: A Review of the Intervention Literature.

Noah D Koblinsky, Krista A Power, Laura Middleton, Guylaine Ferland, Nicole D Anderson

Open access · bronzeAbstract readReview
In one paragraph

Review in The journals of gerontology. Series A, Biological sciences and medical sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
4.1field-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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

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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

5 authors at 4 institutions in 1 country.

Noah D KoblinskyRotman Research Institute, Baycrest Health Sciences, Toronto, Ontario, Canada.
Krista A PowerSchool of Nutrition Sciences, University of Ottawa, Ottawa, Ontario, Canada.
Laura MiddletonDepartment of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Ontario, Canada.
Guylaine FerlandMontreal Heart Institute Research Centre, Montreal, Quebec, Canada.
Nicole D AndersonRotman Research Institute, Baycrest Health Sciences, Toronto, Ontario, Canada.ORCID 0000-0002-5979-2220
University of Toronto · CABaycrest Hospital · CAUniversity of Ottawa · CAUniversity of Waterloo · CA

Funding

CIHR
6 · The paper itself

Abstract

Interest in the gut-brain axis and its implications for neurodegenerative diseases, such as Alzheimer's disease and related dementias, is growing. Microbial imbalances in the gastrointestinal tract, which are associated with impaired cognition, may represent a therapeutic target for lowering dementia risk. Multicomponent lifestyle interventions are a promising dementia risk reduction strategy and most often include diet and exercise, behaviors that are also known to modulate the gut microbiome. A better understanding of the role of the gut microbiome in diet and exercise effects on cognition may help to optimize these lifestyle interventions. The purpose of this review is to summarize findings from diet and exercise interventions that have investigated cognitive changes via effects on the microbiome. We aim to discuss the underlying mechanisms, highlight current gaps in the field, and provide new research directions. There is evidence mainly from rodent studies supporting the notion that microbiota changes mediate the effects of diet and exercise on cognition, with potential mechanisms including end-product metabolites and regulation of local and systemic inflammation. The field lacks whole diet and exercise interventions, especially those involving human participants. It is further limited by heterogeneous rodent models, outcome assessments, and the absence of proper mediation analyses. Trials including older adults with dementia risk factors, factorial designs of diet and exercise, and pre and post measures of microbiota, end-product metabolites, and inflammation would help to elucidate and potentially leverage the role of the microbiome in lowering dementia risk through lifestyle modification.

Indexed as

Alzheimer DiseaseGastrointestinal MicrobiomeAgedBrainCognitionDietHumansInflammationDementiaGut–brain axisInflammationMicrobiotaSCFAs

Identifiers

PMID35977540
PMCPMC9951060
OpenAlexW4292341407

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.