Evidence map›Paper›PMID 23974966›Full record

ArticlePflugers Archiv : European journal of physiology2014

Ambient hypoxia enhances the loss of muscle mass after extensive injury.

T Chaillou, N Koulmann, A Meunier, P Pugnière, J J McCarthy, M Beaudry, X Bigard

Open access · greenAbstract read
In one paragraph

Article in Pflugers Archiv : European journal of physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

23 citing papers in PubMed, 48 citations in OpenAlex.

  1. Trial
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  7. Chronic hypoxia impairs skeletal muscle repair via HIF-2α stabilization.Journal of cachexia, sarcopenia and muscle · 2024
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. HIF-hypoxia signaling in skeletal muscle physiology and fibrosis.Journal of cell communication and signaling · 2020
    Review
  14. Review
  15. Article
  16. Article
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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

7 authors at 3 institutions in 2 countries.

T ChaillouDépartement Environnements opérationnels, Institut de Recherche Biomédicale des Armées, antenne de La Tronche, BP87, 38702, La Tronche, France, th.chaillou@gmail.com.
N Koulmann
A Meunier
P Pugnière
J J McCarthy
M Beaudry
X Bigard
HIA du Val-de-Grâce à Paris · FRUniversité Paris Cité · FRUniversity of Kentucky · US

Funding

BetaCatenin Regulation of Skeletal Muscle HypertrophyR01AR061939 · NIAMS · UNIVERSITY OF KENTUCKY · PI ESSER, KARYN A, MCCARTHY, JOHN JOSEPH · 2012 to 2016
$1.7M
NIAMS NIH HHS R01 AR061939
6 · The paper itself

Abstract

Hypoxia induces a loss of skeletal muscle mass and alters myogenesis in vitro, but whether it affects muscle regeneration in vivo following injury remains to be elucidated. We hypothesized that hypoxia would impair the recovery of muscle mass during regeneration. To test this hypothesis, the soleus muscle of female rats was injured by notexin and allowed to recover for 3, 7, 14, and 28 days under normoxia or hypobaric hypoxia (5,500 m) conditions. Hypoxia impaired the formation and growth of new myofibers and enhanced the loss of muscle mass during the first 7 days of regeneration, but did not affect the final recovery of muscle mass at 28 days. The impaired regeneration under hypoxic conditions was associated with a blunted activation of mechanical target of rapamycin (mTOR) signaling as assessed by p70(S6K) and 4E-BP1 phosphorylation that was independent of Akt activation. The decrease in mTOR activity with hypoxia was consistent with the increase in AMP-activated protein kinase activity, but not related to the change in regulated in development and DNA response 1 protein content. Hypoxia increased the mRNA levels of the atrogene muscle ring finger-1 after 7 days of regeneration, though muscle atrophy F box transcript levels remained unchanged. The increase in MyoD and myogenin mRNA expression with regeneration was attenuated at 7 days with hypoxia. In conclusion, our results support the notion that the enhanced loss of muscle mass observed after 1 week of regeneration under hypoxic conditions could mainly result from the impaired formation and growth of new fibers resulting from a reduction in protein synthesis and satellite cell activity.

Indexed as

RegenerationAMP-Activated Protein KinasesAnimalsCarrier ProteinsCell HypoxiaElapid VenomsFemaleHypoxiaIntracellular Signaling Peptides and ProteinsMuscle Fibers, SkeletalMuscle ProteinsMyoD ProteinPhosphoproteinsProto-Oncogene Proteins c-aktRatsRats, WistarAMP-Activated Protein KinasesCarrier ProteinsDdit4 protein, ratEif4ebp1 protein, ratElapid VenomsIntracellular Signaling Peptides and ProteinsMuscle ProteinsMyoD ProteinnotexinPhosphoproteinsProto-Oncogene Proteins c-aktRepressor ProteinsRibosomal Protein S6 KinasesRNA, MessengerTOR Serine-Threonine KinasesTranscription FactorsTrim63 protein, ratTripartite Motif ProteinsUbiquitin-Protein Ligases

Identifiers

PMID23974966
PMCPMC4878136
OpenAlexW2032136484

What OpenQuestion holds

Textmetadata
LicenceTDM
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.