Evidence map›Paper›PMID 30692935›Full record

ArticleFrontiers in physiology2018

Normal Ribosomal Biogenesis but Shortened Protein Synthetic Response to Acute Eccentric Resistance Exercise in Old Skeletal Muscle.

Daniel W D West, George R Marcotte, Courtney M Chason, Natalie Juo, Leslie M Baehr, Sue C Bodine, Keith Baar

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Redox regulation of UPR signalling and mitochondrial ER contact sites.Cellular and molecular life sciences : CMLS · 2024
    Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Ubiquitin Ligases in Longevity and Aging Skeletal Muscle.International journal of molecular sciences · 2022
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Age-Related Susceptibility to Muscle Damage Following Mechanotherapy in Rats Recovering From Disuse Atrophy.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021
    Article
  17. Massage as a Mechanotherapy for Skeletal Muscle.Exercise and sport sciences reviews · 2021
    Article
  18. Article
  19. Article
  20. Article
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

7 authors at 2 institutions in 1 country.

Daniel W D WestDepartment of Physiology and Membrane Biology, University of California, Davis, Davis, CA, United States.
George R MarcotteDepartment of Neurobiology, Physiology and Behavior, University of California, Davis, Davis, CA, United States.
Courtney M ChasonDepartment of Neurobiology, Physiology and Behavior, University of California, Davis, Davis, CA, United States.
Natalie JuoDepartment of Neurobiology, Physiology and Behavior, University of California, Davis, Davis, CA, United States.
Leslie M BaehrDepartment of Physiology and Membrane Biology, University of California, Davis, Davis, CA, United States.
Sue C BodineDepartment of Physiology and Membrane Biology, University of California, Davis, Davis, CA, United States.
Keith BaarDepartment of Physiology and Membrane Biology, University of California, Davis, Davis, CA, United States.
University of California, Davis · USVA Northern California Health Care System · US

Funding

LAT1 and the development of anabolic resistanceR01AG045375 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI BAAR, KEITH · 2014 to 2018
$1.7M
Mechanisms Involved in Age-Related Loss of Muscle Mass and Growth ResponseI01RX000673 · VA · VA NORTHERN CALIFORNIA HEALTH CARE SYS · PI BODINE, SUE C · 2012 to 2015
–
NIA NIH HHS R01 AG045375RRD VA I01 RX000673
6 · The paper itself

Abstract

Anabolic resistance to feeding in aged muscle is well-characterized; however, whether old skeletal muscle is intrinsically resistant to acute mechanical loading is less clear. The aim of this study was to determine the impact of aging on muscle protein synthesis (MPS), ribosome biogenesis, and protein breakdown in skeletal muscle following a single bout of resistance exercise. Adult male F344/BN rats aged 10 (Adult) and 30 (Old) months underwent unilateral maximal eccentric contractions of the hindlimb. Precursor rRNA increased early post-exercise (6-18 h), preceding elevations in ribosomal mass at 48 h in Adult and Old; there were no age-related differences in these responses. MPS increased early post-exercise in both Adult and Old; however, at 48 h of recovery, MPS returned to baseline in Old but not Adult. This abbreviated protein synthesis response in Old was associated with decreased levels of IRS1 protein and increased BiP, CHOP and eIF2α levels. Other than these responses, anabolic signaling was similar in Adult and Old muscle in the acute recovery phase. Basal proteasome activity was lower in Old, and resistance exercise did not increase the activity of either the ATP-dependent or independent proteasome, or autophagy (Cathepsin L activity) in either Adult or Old muscle. We conclude that MPS and ribosome biogenesis in response to maximal resistance exercise in old skeletal muscle are initially intact; however, the MPS response is abbreviated in Old, which may be the result of ER stress and/or blunted exercise-induced potentiation of the MPS response to feeding.

Indexed as

anabolic resistanceER stressIRS-1 signalingribosome biogenesissarcopeniaubiquitin proteasome

Identifiers

PMID30692935
PMCPMC6339931
OpenAlexW2910922620

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.