Evidence map›Paper›PMID 38615247›Full record

ArticleAge and ageing2024

Plasma metabolomic markers underlying skeletal muscle mitochondrial function relationships with cognition and motor function.

Qu Tian, Erin E Greig, Keenan A Walker, Kenneth W Fishbein, Richard G Spencer, Susan M Resnick, Luigi Ferrucci

Abstract read
In one paragraph

Article in Age and ageing, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–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

10 citing papers in PubMed.

  1. Trial
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  10. Probiotic potential ofFrontiers in microbiology · 2025
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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

7 authors.

Qu TianTranslational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD 21224, USA.
Erin E GreigTranslational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD 21224, USA.
Keenan A WalkerLaboratory of Behavioral Neuroscience, National Institute on Aging, NIH, Baltimore, MD 21224, USA.
Kenneth W FishbeinLaboratory of Clinical Investigation, National Institute on Aging, NIH, Baltimore, MD 21224, USA.
Richard G SpencerLaboratory of Clinical Investigation, National Institute on Aging, NIH, Baltimore, MD 21224, USA.
Susan M ResnickLaboratory of Behavioral Neuroscience, National Institute on Aging, NIH, Baltimore, MD 21224, USA.
Luigi FerrucciTranslational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD 21224, USA.

Funding

Early Markers of Alzheimer DiseaseZIAAG000185 · NIA · NATIONAL INSTITUTE ON AGING · PI WALKER, KEENAN · 2009 to 2025
$20.4M
6 · The paper itself

Abstract

backgroundLower skeletal muscle mitochondrial function is associated with future cognitive impairment and mobility decline, but the biological underpinnings for these associations are unclear. We examined metabolomic markers underlying skeletal muscle mitochondrial function, cognition and motor function.

methodsWe analysed data from 560 participants from the Baltimore Longitudinal Study of Aging (mean age: 68.4 years, 56% women, 28% Black) who had data on skeletal muscle oxidative capacity (post-exercise recovery rate of phosphocreatine, kPCr) via 31P magnetic resonance spectroscopy and targeted plasma metabolomics using LASSO model. We then examined which kPCr-related markers were also associated with cognition and motor function in a larger sample (n = 918, mean age: 69.4, 55% women, 27% Black).

resultsThe LASSO model revealed 24 metabolites significantly predicting kPCr, with the top 5 being asymmetric dimethylarginine, lactic acid, lysophosphatidylcholine a C18:1, indoleacetic acid and triacylglyceride (17:1_34:3), also significant in multivariable linear regression. The kPCr metabolite score was associated with cognitive or motor function, with 2.5-minute usual gait speed showing the strongest association (r = 0.182). Five lipids (lysophosphatidylcholine a C18:1, phosphatidylcholine ae C42:3, cholesteryl ester 18:1, sphingomyelin C26:0, octadecenoic acid) and 2 amino acids (leucine, cystine) were associated with both cognitive and motor function measures.

conclusionOur findings add evidence to the hypothesis that mitochondrial function is implicated in the pathogenesis of cognitive and physical decline with aging and suggest that targeting specific metabolites may prevent cognitive and mobility decline through their effects on mitochondria. Future omics studies are warranted to confirm these findings and explore mechanisms underlying mitochondrial dysfunction in aging phenotypes.

Indexed as

Cognitive DysfunctionLysophosphatidylcholinesAgedCognitionFemaleHumansLongitudinal StudiesMaleMuscle, SkeletalLysophosphatidylcholinescognitionmetabolomicsmitochondriamotorolder peopleskeletal muscle

Identifiers

PMID38615247
PMCPMC11484644

What Socratic 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 Socratic graph.