Cited by 32Muscle Physiology and DisordersAutophagy in Disease and TherapyAmyotrophic Lateral Sclerosis Research

The DOI matches its Crossref record; 82 of the 83 references it cites were found in a registry or an index.

Exercise prevents impaired autophagy and proteostasis in a model of neurogenic myopathy

Open access

Abstract

Increased proteolytic activity has been widely associated with skeletal muscle atrophy. However, elevated proteolysis is also critical for the maintenance of cellular homeostasis by disposing cytotoxic proteins and non-functioning organelles. We recently demonstrated that exercise activates autophagy and re-establishes proteostasis in cardiac diseases. Here, we characterized the impact of exercise on skeletal muscle autophagy and proteostasis in a model of neurogenic myopathy induced by sciatic nerve constriction in rats. Neurogenic myopathy, characterized by progressive atrophy and impaired contractility, was paralleled by accumulation of autophagy-related markers and loss of acute responsiveness to both colchicine and chloroquine. These changes were correlated with elevated levels of damaged proteins, chaperones and pro-apoptotic markers compared to control animals. Sustained autophagy inhibition using chloroquine in rats (50 mg.kg −1 .day −1 ) or muscle-specific deletion of Atg7 in mice was sufficient to impair muscle contractility in control but not in neurogenic myopathy, suggesting that dysfunctional autophagy is critical in skeletal muscle pathophysiology. Finally, 4 weeks of aerobic exercise training (moderate treadmill running, 5x/week, 1 h/day) prior to neurogenic myopathy improved skeletal muscle autophagic flux and proteostasis. These changes were followed by spared muscle mass and better contractility properties. Taken together, our findings suggest the potential value of exercise in maintaining skeletal muscle proteostasis and slowing down the progression of neurogenic myopathy.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41598-018-30365-1

Cites

82 of 82 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Exercise reactivates mitophagy, reduces accumulation of ROS, improves mitochondrial health, and delays the loss of muscle mass that accompanies various pathologies, including aging sarcopenia, heart failure, and neurogenic myopathy.

    “Moreover, exercise is the best non-pharmacological strategy to reactivate mitophagy, which reduces the accumulation of ROS and thus, improves mitochondrial health and delays the loss of muscle mass that accompanies various pathologies, including aging sarcopenia, heart failure and neurogenic myopathy [224, 238–240].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

1 retracted

Flagged first, then by citations

1 of the 83 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Metadata

Authors
Campos, J. C., Baehr, L. M., Gomes, K. M. S., Bechara, L. R. G., Voltarelli, V. A., Bozi, L. H. M., Ribeiro, M. A. C., Ferreira, N. D., Moreira, J. B. N., Brum, P. C., Bodine, S. C., & Ferreira, J. C. B.
Affiliations
  • Universidade de São Paulo (BR)
  • University of Iowa (US)
Corresponding author
Ferreira, Julio C. B.
Venue
Scientific Reports
Published
2018-08-07
Volume
8
Issue
1
Pages
11818-11818
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2885919710
Cited by
32
References
83
Citations by year
2026: 4 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 5 · 2021: 3 · 2020: 7 · 2019: 5 · 2018: 1
FWCI
1.42
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (2012/14416-1, 2015/, 15/20783-5, 2015/228145, 2016/01633-5)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (2015/22814-5, 2015/20783-5)
  • Universidade de São Paulo
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Clinical Neurology › Amyotrophic Lateral Sclerosis Research
Keywords
neurogenic myopathy, autophagy, proteostasis, exercise training, skeletal muscle atrophy, sciatic nerve constriction, ATG7, chloroquine, muscle contractility, protein damage, molecular chaperones, apoptosis, aerobic exercise
MeSH terms
Proteostasis, Animals, Autophagy, Chloroquine, Male, Mice, Transgenic, Muscle Contraction, Muscular Atrophy, Neuromuscular Diseases, Physical Conditioning, Animal, Rats, Sprague-Dawley, Mice, Knockout, Muscle, Skeletal, Antirheumatic Agents, Proteolysis

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review