Evidence map›Paper›PMID 34063079›Full record

ArticleGenes2021

Skeletal Muscle Gene Expression Profile in Response to Caloric Restriction and Aging: A Role for SirT1.

Matthew J Myers, Fathima Shaik, Fahema Shaik, Stephen E Alway, Junaith S Mohamed

Open access · goldAbstract read
In one paragraph

Article in Genes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

13 citing papers in PubMed, 18 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Matthew J MyersLaboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, Department of Human Performance, West Virginia University School of Medicine, Morgantown, WV 26506, USA.ORCID 0000-0002-5283-4643
Fathima ShaikBiochemistry and Cellular and Molecular Biology Program, University of Tennessee, Knoxville, TN 37996, USA.
Fahema ShaikBiochemistry and Cellular and Molecular Biology Program, University of Tennessee, Knoxville, TN 37996, USA.
Stephen E AlwayLaboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, Department of Human Performance, West Virginia University School of Medicine, Morgantown, WV 26506, USA.
Junaith S MohamedLaboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, Department of Human Performance, West Virginia University School of Medicine, Morgantown, WV 26506, USA.ORCID 0000-0002-1518-4856
West Virginia University · USUniversity of Tennessee at Knoxville · US

Funding

WV INBRE: The Inhibitor of Growth Family Member 4 (ING4) inhibits L-Type Amino Acid Transporter 1 (LAT1) expression to suppress Breast CancerP20GM103434 · NIGMS · MARSHALL UNIVERSITY · PI Travis Salisbury · 2012 to 2026
$61.1M
NIGMS NIH HHS P20 GM103434
6 · The paper itself

Abstract

SirT1 plays a crucial role in the regulation of some of the caloric restriction (CR) responsive biological pathways. Aging suppresses SirT1 gene expression in skeletal muscle, suggesting that aging may affect the role of CR in muscle. To determine the role of SirT1 in the regulation of CR regulated pathways in skeletal muscle, we performed high-throughput RNA sequencing using total RNA isolated from the skeletal muscles of young and aged wild-type (WT), SirT1 knockout (SirT1-KO), and SirT1 overexpression (SirT1-OE) mice fed to 20 wk ad libitum (AL) or 40% CR diet. Our data show that aging repressed the global gene expression profile, which was restored by CR via upregulating transcriptional and translational process-related pathways. CR inhibits pathways linked to the extracellular matrix and cytoskeletal proteins regardless of aging. Mitochondrial function and muscle contraction-related pathways are upregulated in aged SirT1 KO mice following CR. SirT1 OE did not affect whole-body energy expenditure or augment skeletal muscle insulin sensitivity associated pathways, regardless of aging or diet. Overall, our RNA-seq data showed that SirT1 and CR have different functions and activation of SirT1 by its activator or exercise may enhance SirT1 activity that, along with CR, likely have a better functional role in aging muscle.

Indexed as

TranscriptomeAgingAnimalsCaloric RestrictionFemaleGene Expression Regulation, DevelopmentalMaleMiceMice, Inbred C57BLMitochondria, MuscleMuscle, SkeletalSirtuin 1Sirt1 protein, mouseSirtuin 1agingcaloric restrictionRNA-sequencingSirT1 knockout miceSirT1 transgenic micesirtuin1transcriptome

Identifiers

PMID34063079
PMCPMC8147962
OpenAlexW3158163702

What OpenQuestion holds

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LicenceCC BY
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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.