Evidence map›Paper›PMID 27964759›Full record

ArticleSkeletal muscle2016

Voluntary resistance wheel exercise from mid-life prevents sarcopenia and increases markers of mitochondrial function and autophagy in muscles of old male and female C57BL/6J mice.

Zoe White, Jessica Terrill, Robert B White, Christopher McMahon, Phillip Sheard, Miranda D Grounds, Tea Shavlakadze

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Skeletal muscle, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 75 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 2 pooled it
6.1field-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

75 citing papers in PubMed, 2 syntheses or guidelines pooled it, 115 citations in OpenAlex.

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  18. Sexual dimorphisms in skeletal muscle: current concepts and research horizons.Journal of applied physiology (Bethesda, Md. : 1985) · 2024
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15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 2 countries.

Zoe WhiteSchool of Anatomy, Physiology and Human Biology, The University of Western Australia (UWA), 35 Stirling Highway, Crawley, WA, 6009, Australia.
Jessica TerrillSchool of Anatomy, Physiology and Human Biology, The University of Western Australia (UWA), 35 Stirling Highway, Crawley, WA, 6009, Australia.
Robert B WhiteSchool of Anatomy, Physiology and Human Biology, The University of Western Australia (UWA), 35 Stirling Highway, Crawley, WA, 6009, Australia.
Christopher McMahonDevelopmental Biology Group, AgResearch Ltd, Hamilton, 3214, New Zealand.
Phillip SheardDepartment of Physiology, University of Otago, Dunedin, 9010, New Zealand.
Miranda D GroundsSchool of Anatomy, Physiology and Human Biology, The University of Western Australia (UWA), 35 Stirling Highway, Crawley, WA, 6009, Australia. miranda.grounds@uwa.edu.au.
Tea ShavlakadzeSchool of Anatomy, Physiology and Human Biology, The University of Western Australia (UWA), 35 Stirling Highway, Crawley, WA, 6009, Australia.
The University of Western Australia · AUAgResearch · NZHarry Perkins Institute of Medical Research · AUUniversity of Otago · NZWestern Australian Marine Science Institution · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is much interest in the capacity of resistance exercise to prevent the age-related loss of skeletal muscle mass and function, known as sarcopenia. This study investigates the molecular basis underlying the benefits of resistance exercise in aging C57BL/6J mice of both sexes.

resultsThis study is the first to demonstrate that long-term (34 weeks) voluntary resistance wheel exercise (RWE) initiated at middle age, from 15 months, prevents sarcopenia in selected hindlimb muscles and causes hypertrophy in soleus, by 23 months of age in both male and female C57BL/6J mice. Compared with 23-month-old sedentary (SED) controls, RWE (0-6 g of resistance) increased intramuscular mitochondrial density and oxidative capacity (measured by citrate synthase and NADH-TR) and increased LC3II/I ratios (a marker of autophagy) in exercised mice of both sexes. RWE also reduced mRNA expression of Gadd45α (males only) and Runx1 (females only) but had no effect on other markers of denervation including Chrng, Chrnd, Musk, and Myog. RWE increased heart mass in all mice, with a more pronounced increase in females. Significant sex differences were also noted among SED mice, with Murf1 mRNA levels increasing in male, but decreasing in old female mice between 15 and 23 months.

conclusionsOverall, long-term RWE initiated from 15 month of age significantly improved some markers of the mitochondrial and autophagosomal pathways and prevented age-related muscle wasting.

Indexed as

AutophagyPhysical Conditioning, AnimalAnimalsCell Cycle ProteinsCore Binding Factor Alpha 2 SubunitFemaleGADD45 ProteinsMaleMiceMice, Inbred C57BLMitochondria, MuscleMuscle ProteinsMuscle, SkeletalMyogeninNuclear ProteinsReceptor Protein-Tyrosine Kinasesacetylcholine receptor gamma, mouseCell Cycle ProteinsChrnd protein, mouseCore Binding Factor Alpha 2 SubunitGadd45a protein, mouseGADD45 ProteinsMuscle ProteinsMuSK protein, mouseMyogeninMyog protein, mouseNuclear ProteinsReceptor Protein-Tyrosine KinasesReceptors, CholinergicReceptors, NicotinicRunx1 protein, mouseTrim63 protein, mouseTripartite Motif ProteinsUbiquitin-Protein LigasesAgingAutophagyCitrate synthaseDenervationMitochondriaMuscleOxidative capacityResistance exerciseSarcopenia

Identifiers

PMID27964759
PMCPMC5155391
OpenAlexW2562684051

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.