Cited by 110Gut microbiota and healthDementia and Cognitive Impairment ResearchNutritional Studies and Diet

Association of the gut microbiota with cognitive function in midlife

Open access
Meyer, Katie, Lulla, Anju, Debroy, Kunal, Shikany, James M., Yaffe, Kristine, Meirelles, Osorio, Launer, Lenore J.·2022·JAMA Network Open

Abstract

Importance: Animal experiments and small clinical studies support a role for the gut microbiota in cognitive functioning. Few studies have investigated gut microbiota and cognition in large community samples. Objective: To examine associations of gut microbial composition with measures of cognition in an established population-based study of middle-aged adults. Design, Setting, and Participants: This cross-sectional study analyzed data from the prospective Coronary Artery Risk Development in Young Adults (CARDIA) cohort in 4 US metropolitan centers between 2015 and 2016. Data were analyzed in 2019 and 2020. Exposures: Stool DNA were sequenced, and the following gut microbial measures were gathered: (1) β-diversity (between-person) derived with multivariate principal coordinates analysis; (2) α-diversity (within-person), defined as richness (genera count) and the Shannon index (integrative measure of genera richness and evenness); and (3) taxonomy (107 genera, after filtering). Main Outcomes and Measures: Cognitive status was assessed using 6 clinic-administered cognitive tests: Montreal Cognitive Assessment (MoCA), Digit Symbol Substitution Test (DSST), Rey-Auditory Verbal Learning Test (RAVLT), Stroop, category fluency, and letter fluency. A global score measure derived using principal components analysis was also assessed; the first principal component explained 56% of variability. Results: Microbiome data were available on 597 CARDIA participants; mean (SD) age was 55.2 (3.5) years, 268 participants (44.7%) were men, and 270 (45.2%) were Black. In multivariable-adjusted principal coordinates analysis, permutational multivariate analysis of variance tests for β-diversity were statistically significant for all cognition measures (principal component analysis, P = .001; MoCA, P = .001; DSST, P = .001; RAVLT, P = .001; Stroop, P = .007; category fluency, P = .001) with the exception of letter fluency (P = .07). After adjusting for sociodemographic variables (age, race, sex, education), health behaviors (physical activity, diet, smoking, medication use), and clinical covariates (body mass index, diabetes, hypertension), Barnesiella was positively associated with the first principal component (β, 0.16; 95% CI, 0.08-0.24), DSST (β, 1.18; 95% CI, 0.35-2.00), and category fluency (β, 0.59; 95% CI, 0.31-0.87); Lachnospiraceae FCS020 group was positively associated with DSST (β, 2.67; 95% CI, 1.10-4.23), and Sutterella was negatively associated with MoCA (β, -0.27; 95% CI, -0.44 to -0.11). Conclusions and Relevance: In this cross-sectional study, microbial community composition, based on β-diversity, was associated with all cognitive measures in multivariable-adjusted analysis. These data contribute to a growing body of literature suggesting that the gut microbiota may be associated with cognitive aging, but must be replicated in larger samples and further researched to identify relevant pathways.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1001/jamanetworkopen.2021.43941

Cites

42 of 42 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Meyer et al. found a significant positive association between β-diversity and all higher cognitive functions tested in 597 middle-aged adults.

    “Confirming the role of the GM in cognitive function in midlife, Meyer et al. explored the relationship between gut microbial community composition and cognitive function in 597 middle-aged adults, and found a significant positive association between β-diversity and all higher cognitive functions tested (89).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 43 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Meyer, K., Lulla, A., Debroy, K., Shikany, J. M., Yaffe, K., Meirelles, O., & Launer, L. J.
Affiliations
  • University of North Carolina at Chapel Hill (US)
  • National Institutes of Health (US)
  • University of Alabama at Birmingham (US)
  • University of California, San Francisco (US)
Corresponding author
Meyer, Katie
Venue
JAMA Network Open
Published
2022-02-08
Volume
5
Issue
2
Pages
e2143941
ISSN
2574-3805 (ISSN-L)
OpenAlex
W4210905338
Cited by
110
References
43
Citations by year
2026: 15 · 2025: 22 · 2024: 35 · 2023: 25 · 2022: 13
FWCI
7.75
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • JAMA Network Open (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (R01AG063887, R35AG071916)
  • National Heart, Lung, and Blood Institute (K01HL127159)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
gut microbiota, cognitive function, middle-aged adults, beta diversity, alpha diversity, Barnesiella, Prevotella, executive function, memory, CARDIA cohort, health behavior, sociodemographic factors, racial and ethnic differences, sex differences, physical activity, diet, smoking, body mass index, diabetes mellitus, hypertension
MeSH terms
Gastrointestinal Microbiome, Race Factors, Age Factors, Aging, Alabama, Black or African American, California, Chicago, Cognition, Cross-Sectional Studies, Female, Humans, Longitudinal Studies, Male, Middle Aged, Minnesota, Prospective Studies, Risk Factors, Socioeconomic Factors, Cohort Studies, White People

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review