Evidence map›Paper›PMID 24506836›Full record

ArticleCritical care (London, England)2014

Hypercapnia attenuates ventilator-induced diaphragm atrophy and modulates dysfunction.

Willem-Jan M Schellekens, Hieronymus W H van Hees, Matthijs Kox, Marianne Linkels, Gilberto L Andrade Acuña, P N Richard Dekhuijzen, Gert Jan Scheffer, Johannes G van der Hoeven, Leo M A Heunks

Open access · goldAbstract read
In one paragraph

Article in Critical care (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

10 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Positive End-Expiratory Pressure Ventilation Induces Longitudinal Atrophy in Diaphragm Fibers.American journal of respiratory and critical care medicine · 2018
    Article
  5. Diaphragm Atrophy and Weakness in the Absence of Mitochondrial Dysfunction in the Critically Ill.American journal of respiratory and critical care medicine · 2017
    Article
  6. Review
  7. Review
  8. Review
  9. Letter to the Editor.The Journal of physiology · 2015
    Article
  10. 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

9 authors at 2 institutions in 1 country.

Willem-Jan M Schellekens
Hieronymus W H van Hees
Matthijs Kox
Marianne Linkels
Gilberto L Andrade Acuña
P N Richard Dekhuijzen
Gert Jan Scheffer
Johannes G van der Hoeven
Leo M A Heunks
Radboud University Medical Center · NLRadboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDiaphragm weakness induced by prolonged mechanical ventilation may contribute to difficult weaning from the ventilator. Hypercapnia is an accepted side effect of low tidal volume mechanical ventilation, but the effects of hypercapnia on respiratory muscle function are largely unknown. The present study investigated the effect of hypercapnia on ventilator-induced diaphragm inflammation, atrophy and function.

methodsMale Wistar rats (n = 10 per group) were unventilated (CON), mechanically ventilated for 18 hours without (MV) or with hypercapnia (MV + H, Fico2 = 0.05). Diaphragm muscle was excised for structural, biochemical and functional analyses.

resultsMyosin concentration in the diaphragm was decreased in MV versus CON, but not in MV + H versus CON. MV reduced diaphragm force by approximately 22% compared with CON. The force-generating capacity of diaphragm fibers from MV + H rats was approximately 14% lower compared with CON. Inflammatory cytokines were elevated in the diaphragm of MV rats, but not in the MV + H group. Diaphragm proteasome activity did not significantly differ between MV and CON. However, proteasome activity in the diaphragm of MV + H was significantly lower compared with CON. LC3B-II a marker of lysosomal autophagy was increased in both MV and MV + H. Incubation of MV + H diaphragm muscle fibers with the antioxidant dithiothreitol restored force generation of diaphragm fibers.

conclusionsHypercapnia partly protects the diaphragm against adverse effects of mechanical ventilation.

Indexed as

AnimalsAntioxidantsDiaphragmDisease Models, AnimalHypercapniaIntercostal MusclesMaleMuscle ContractionMuscle WeaknessMuscular AtrophyRatsRats, WistarRespirationRespiration, ArtificialTidal VolumeAntioxidants

Identifiers

PMID24506836
PMCPMC4056638
OpenAlexW2172226730

What OpenQuestion holds

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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.