Evidence map›Paper›PMID 26674018›Full record

ArticleJournal of cachexia, sarcopenia and muscle2015

Skeletal muscle alterations in chronic heart failure: differential effects on quadriceps and diaphragm.

Norman Mangner, Bettina Weikert, T Scott Bowen, Marcus Sandri, Robert Höllriegel, Sandra Erbs, Rainer Hambrecht, Gerhard Schuler, Axel Linke, Stephan Gielen and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of cachexia, sarcopenia and muscle, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
25.7field-weighted citation impact, top 1% 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

36 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Chronic hypoxia impairs skeletal muscle repair via HIF-2α stabilization.Journal of cachexia, sarcopenia and muscle · 2024
    Article
  6. Molecular mechanisms underlying sarcopenia in heart failure.The journal of cardiovascular aging · 2024
    Article
  7. Locomotor and respiratory muscle abnormalities in HFrEF and HFpEF.Frontiers in cardiovascular medicine · 2023
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Heart Failure-Induced Skeletal Muscle Wasting.Current heart failure reports · 2020
    Review
  13. MicroRNA regulatory networks in the pathogenesis of sarcopenia.Journal of cellular and molecular medicine · 2020
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  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

11 authors at 5 institutions in 1 country.

Norman MangnerDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Bettina WeikertDepartment of Internal Medicine/Cardiology, Clinic Altenburg Altenburg, Germany.
T Scott BowenDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Marcus SandriDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Robert HöllriegelDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Sandra ErbsDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Rainer HambrechtDepartment of Cardiology and Angiology, Clinic Links der Weser Bremen, Germany.
Gerhard SchulerDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Axel LinkeDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Stephan GielenUniversity Hospital-Martin Luther University of Halle/Wittenberg Halle, Germany.
Volker AdamsDepartment of Internal Medicine/Cardiology, University of Leipzig-Heart Center Leipzig, Germany.
Leipzig University · DELeipzig Heart Institute · DEKlinikum Altenburger Land · DEKlinikum Links der Weser · DEMartin Luther University Halle-Wittenberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic heart failure (CHF) results in limb and respiratory muscle weakness, which contributes to exercise intolerance and increased morbidity and mortality, yet the molecular mechanisms remain poorly understood. Therefore, we aimed to compare parameters of antioxidative capacity, energy metabolism, and catabolic/anabolic balance in diaphragm and quadriceps muscle in an animal model of CHF.

methodsLigation of the left anterior descending coronary artery (n = 13) or sham operation (n = 11) was performed on Wistar Kyoto rats. After 12 weeks, echocardiography and invasive determination of maximal rates of left ventricular (LV) pressure change were performed. Antioxidative and metabolic enzyme activities and expression of catabolic/anabolic markers were assessed in quadriceps and diaphragm muscle.

resultsLigated rats developed CHF (i.e. severe LV dilatation, reduced LV ejection fraction, and impaired maximal rates of LV pressure change; P < 0.001). There was a divergent response for antioxidant enzymes between the diaphragm and quadriceps in CHF rats, with glutathione peroxidase and manganese superoxide dismutase activity increased in the diaphragm but reduced in the quadriceps relative to shams (P < 0.01). Metabolic enzymes were unaltered in the diaphragm, but cytochrome c oxidase activity (P < 0.01) decreased and lactate dehydrogenase activity (P < 0.05) increased in the quadriceps of CHF animals. Protein expression of the E3 ligase muscle ring finger 1 and proteasome activity were increased (P < 0.05) in both the diaphragm and quadriceps in CHF rats compared with shams.

conclusionChronic heart failure induced divergent antioxidative and metabolic but similar catabolic responses between the diaphragm and quadriceps. Despite the quadriceps demonstrating significant impairments in CHF, apparent beneficial adaptations of an increased antioxidative capacity were induced in the diaphragm. Nevertheless, muscle ring finger 1 and proteasome activity (markers of protein degradation) were elevated and oxidative enzyme activity failed to increase in the diaphragm of CHF rats, which suggest that a myopathy is likely present in respiratory muscle in CHF, despite its constant activation.

Indexed as

Antioxidative enzymesCHFCongestive heart failureMuRF-1

Identifiers

PMID26674018
PMCPMC4670747
OpenAlexW1581196153

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.