Evidence map›Paper›PMID 41362434›Full record

ArticleJournal of Alzheimer's disease reports

Metabolic factors, gut microbiota, and cognitive performance: Mendelian randomization analysis.

Erhan Yu, Yi Zhang, Jiahui Chen, Bihao Peng, Jiawei Xin

Abstract read
In one paragraph

Article in Journal of Alzheimer's disease reports. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Erhan YuDepartment of Neurology, Fujian Medical University Union Hospital, Fuzhou, China.ORCID https://orcid.org/0009-0003-5460-4475
Yi ZhangClinical Research Center for Precision Diagnosis and Treatment of Neurological Diseases of Fujian Province, Fuzhou, China.ORCID https://orcid.org/0009-0005-8983-0928
Jiahui ChenClinical Research Center for Precision Diagnosis and Treatment of Neurological Diseases of Fujian Province, Fuzhou, China.ORCID https://orcid.org/0009-0007-5891-7355
Bihao PengDepartment of Neurology, Fujian Medical University Union Hospital, Fuzhou, China.ORCID https://orcid.org/0009-0008-8126-1021
Jiawei XinDepartment of Neurology, Fujian Medical University Union Hospital, Fuzhou, China.ORCID https://orcid.org/0009-0004-6794-1750

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The associations between several metabolic factors, gut microbiota (GM), and cognitive performance have not been clearly identified. This study investigates their associations and GM's mediating effects. Objective: This study aimed to investigate the causal effects of key metabolic factors on cognitive performance and to determine whether gut microbiota mediate these associations. Methods: Genetic variants linked to four metabolic factors [body mass index (BMI), basal metabolic rate (BMR), systolic blood pressure (SBP), two-hour glucose], GM, and cognitive performance were selected from genome-wide association studies (GWAS). Univariable Mendelian randomization (MR) and mediation MR analyses were applied. Results: We found a protective effect of body metabolic rate (β = 0.061; 95% CI: 0.029, 0.093; p = 0.0002) and risk effect of body mass index (BMI, β = -0.047; 95% CI: -0.074, -0.019; p = 0.0009), systolic blood pressure (β = -0.049; 95% CI: -0.084, -0.014; p = 0.0063), and two-hour glucose (β = -0.043; 95% CI: -0.070, -0.016; p = 0.0017) on cognitive performance. In addition, the 2-step MR analysis further showed that the BMI-effect on cognitive performance was partially mediated by Rikenellaceae family, with a mediated proportion of 14.03% (95% CI: 0.99%, 27.06%; p < 0.05). Conclusions: Our findings suggest that several metabolic factors influence cognitive performance, with gut microbiota potentially mediating these effects. These results provide insights into potential targets and useful biomarkers for understanding the pathogenesis and developing interventions for cognitive health.

Indexed as

Alzheimer's diseasebody mass indexcognitive declinecognitive performancegut–brain axisgut microbiotaMendelian randomizationmetabolic factorsRikenellaceae

Identifiers

PMID41362434
PMCPMC12681636

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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.