Evidence map›Paper›PMID 34932867›Full record

ArticleAging cell2022

Late-life exercise mitigates skeletal muscle epigenetic aging.

Kevin A Murach, Andrea L Dimet-Wiley, Yuan Wen, Camille R Brightwell, Christine M Latham, Cory M Dungan, Christopher S Fry, Stanley J Watowich

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 2 pooled it
5.0field-weighted citation impact, top 3% 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

54 citing papers in PubMed, 2 syntheses or guidelines pooled it, 95 citations in OpenAlex.

  1. Pooled it
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  13. Exercise attenuates the hallmarks of aging: Novel perspectives.Journal of sport and health science · 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

8 authors at 2 institutions in 1 country.

Kevin A MurachMolecular Muscle Mass Regulation Laboratory, Department of Health, Human Performance, and Recreation, Exercise Science Research Center, University of Arkansas, Fayetteville, Arkansas, USA.ORCID 0000-0003-2783-7137
Andrea L Dimet-WileyDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA.ORCID 0000-0003-2214-3670
Yuan WenThe Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA.ORCID 0000-0002-3210-1629
Camille R BrightwellThe Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA.
Christine M LathamThe Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA.
Cory M DunganThe Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA.
Christopher S FryThe Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA.
Stanley J WatowichDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, Texas, USA.
University of Kentucky · USThe University of Texas Medical Branch at Galveston · US

Funding

The role of satellite cells in adult skeletal muscle growth and maintenanceR01AR060701 · NIAMS · UNIVERSITY OF KENTUCKY · PI MCCARTHY, JOHN JOSEPH, PETERSON, CHARLOTTE A. · 2010 to 2019
$3.3M
Exercise-induced skeletal muscle exosomes promote adipocyte lipolysisR01DK119619 · NIDDK · UNIVERSITY OF KENTUCKY · PI MCCARTHY, JOHN JOSEPH, PETERSON, CHARLOTTE A. · 2018 to 2022
$2.3M
Myonuclear Epigenetics of Skeletal Muscle Mass Regulation with AgeR00AG063994 · NIA · UNIVERSITY OF ARKANSAS AT FAYETTEVILLE · PI MURACH, KEVIN · 2021 to 2023
$735k
Development of NNMT inhibitors as novel interventions to activate quiescent muscle stem cells and improve age-related muscle degenerationR21AG063056 · NIA · UNIVERSITY OF TEXAS MED BR GALVESTON · PI WATOWICH, STANLEY J · 2019 to 2020
$435k
Myonuclear Epigenetics of Skeletal Muscle Mass Regulation with AgeK99AG063994 · NIA · UNIVERSITY OF KENTUCKY · PI MURACH, KEVIN · 2019 to 2020
$197k
NIAMS NIH HHS R01 AR060701NIA NIH HHS AG063056NIA NIH HHS K99 AG063994NIA NIH HHS R00 AG063994NIA NIH HHS R21 AG063056NIDDK NIH HHS R01 DK119619
6 · The paper itself

Abstract

There are functional benefits to exercise in muscle, even when performed late in life, but the contributions of epigenetic factors to late-life exercise adaptation are poorly defined. Using reduced representation bisulfite sequencing (RRBS), ribosomal DNA (rDNA) and mitochondrial-specific examination of methylation, targeted high-resolution methylation analysis, and DNAge™ epigenetic aging clock analysis with a translatable model of voluntary murine endurance/resistance exercise training (progressive weighted wheel running, PoWeR), we provide evidence that exercise may mitigate epigenetic aging in skeletal muscle. Late-life PoWeR from 22-24 months of age modestly but significantly attenuates an age-associated shift toward promoter hypermethylation. The epigenetic age of muscle from old mice that PoWeR-trained for eight weeks was approximately eight weeks younger than 24-month-old sedentary counterparts, which represents ~8% of the expected murine lifespan. These data provide a molecular basis for exercise as a therapy to attenuate skeletal muscle aging.

Indexed as

AgingAnimalsEpigenomicsMaleMiceMuscle, SkeletalPhysical Conditioning, AnimalHorvath clockPoWeRRbm10rDNATimm8a1

Identifiers

PMID34932867
PMCPMC8761012
OpenAlexW4200558012

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.