Evidence map›Paper›PMID 32857472›Full record

ReviewAging cell2020

Animal models of sarcopenia.

Courtney J Christian, Guy M Benian

Open access · goldAbstract readReview
In one paragraph

Review in Aging cell, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

63 citing papers in PubMed, 113 citations in OpenAlex.

  1. Review
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  11. Skeletal Muscle Aging: Lessons From Teleosts.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
    Review
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3 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Courtney J ChristianDepartment of Pathology, Emory University, Atlanta, Georgia, USA.ORCID 0000-0001-7707-5180
Guy M BenianDepartment of Pathology, Emory University, Atlanta, Georgia, USA.ORCID 0000-0002-8236-3176
Emory University · US

Funding

The UNC-45 Chaperone as a Modulator of Myosin Biogenesis and FunctionR01GM118534 · NIGMS · UNIVERSITY OF TEXAS MED BR GALVESTON · PI BENIAN, GUY MARTIN, OBERHAUSER, ANDRES F. · 2016 to 2019
$1.2M
NIGMS NIH HHS R01 GM118534
6 · The paper itself

Abstract

Sarcopenia is the age-related decline in muscle mass and function without any underlying disease. The exact molecular mechanisms responsible for this pathology remain unknown. The use of model organisms, such as mice, rats, flies, and worms, has advanced the field of sarcopenia research by identifying therapeutic strategies and genetic mutations that result in improved muscle mass and function of elderly animals. This review discusses molecular and therapeutic discoveries made using these model organisms and how these animals can be further utilized to better understand sarcopenia pathogenesis. In rodents, flies, and worms, dietary restriction improves muscle performance in old animals. In rodents and worms, exercise and a number of naturally occurring compounds alleviate sarcopenia. Reduction in the insulin/IGF1 receptor pathway, well known to promote longevity, improves sarcopenia in worms and flies. Mitochondrial dysfunction may contribute to the pathogenesis of sarcopenia: In rodents, there is age-dependent reduction in mitochondrial mass and a change in morphology; in nematodes, there is age-dependent fragmentation of mitochondria that precedes sarcomeric disorganization. In Drosophila and rats, components of the 26S proteasome are elevated in aged muscle. An advantage of the worm and fly models is that these organisms lack muscle stem cells, and thus processes that promote the maintenance of already assembled muscle, can be identified without the confounding influence of muscle regeneration. Zebrafish are an up and coming model of sarcopenia for future consideration. A better understanding of the molecular changes behind sarcopenia will help researchers develop better therapies to improve the muscle health of elderly individuals.

Indexed as

Disease Models, AnimalAnimalsSarcopeniaagingCaenorhabditis elegansDrosophilamicemuscleratssarcopeniazebrafish

Identifiers

PMID32857472
PMCPMC7576270
OpenAlexW3082109259

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.