Evidence map›Paper›PMID 25888356›Full record

ArticleCritical care (London, England)2015

Levosimendan affects oxidative and inflammatory pathways in the diaphragm of ventilated endotoxemic mice.

Willem-Jan M Schellekens, Hieronymus W H van Hees, Marianne Linkels, 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), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.9field-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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Ventilator-induced diaphragm dysfunction in critical illness.Experimental biology and medicine (Maywood, N.J.) · 2018
    Review
  7. Diaphragm Atrophy and Weakness in the Absence of Mitochondrial Dysfunction in the Critically Ill.American journal of respiratory and critical care medicine · 2017
    Article
  8. Article
  9. 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.

Willem-Jan M SchellekensDepartment of Anesthesiology, Radboud University Medical Centre, Postbox 9101, Nijmegen, 6500 HB, the Netherlands. willem-jan.schellekens@radboudumc.nl.
Hieronymus W H van HeesDepartment of Pulmonary Diseases, Radboud University Medical Centre, Postbox 9101, Nijmegen, 6500 HB, the Netherlands. jeroen.vanhees@radboudumc.nl.
Marianne LinkelsDepartment of Pulmonary Diseases, Radboud University Medical Centre, Postbox 9101, Nijmegen, 6500 HB, the Netherlands. marianne.linkels@radboudumc.nl.
P N Richard DekhuijzenDepartment of Pulmonary Diseases, Radboud University Medical Centre, Postbox 9101, Nijmegen, 6500 HB, the Netherlands. richard.dekhuijzen@radboudumc.nl.
Gert Jan SchefferDepartment of Anesthesiology, Radboud University Medical Centre, Postbox 9101, Nijmegen, 6500 HB, the Netherlands. gertjan.scheffer@radboudumc.nl.
Johannes G van der HoevenDepartment of Intensive Care Medicine, Radboud University Medical Centre, Postbox 9101, Nijmegen, 6500 HB, the Netherlands. hans.vanderhoeven@radboudumc.nl.
Leo M A HeunksDepartment of Intensive Care Medicine, Radboud University Medical Centre, Postbox 9101, Nijmegen, 6500 HB, the Netherlands. leo.heunks@radboudumc.nl.
Radboud University Medical Center · NLRadboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionControlled mechanical ventilation and endotoxemia are associated with diaphragm muscle atrophy and dysfunction. Oxidative stress and activation of inflammatory pathways are involved in the pathogenesis of diaphragmatic dysfunction. Levosimendan, a cardiac inotrope, has been reported to possess anti-oxidative and anti-inflammatory properties. The aim of the present study was to investigate the effects of levosimendan on markers for diaphragm nitrosative and oxidative stress, inflammation and proteolysis in a mouse model of endotoxemia and mechanical ventilation.

methodsThree groups were studied: (1) unventilated mice (CON, n =8), (2) mechanically ventilated endotoxemic mice (MV LPS, n =17) and (3) mechanically ventilated endotoxemic mice treated with levosimendan (MV LPS + L, n =17). Immediately after anesthesia (CON) or after 8 hours of mechanical ventilation, blood and diaphragm muscle were harvested for biochemical analysis.

resultsMechanical ventilation and endotoxemia increased expression of inducible nitric oxide synthase (iNOS) mRNA and cytokine levels of interleukin (IL)-1β, IL-6 and keratinocyte-derived chemokine, and decreased IL-10, in the diaphragm; however, they had no effect on protein nitrosylation and 4-hydroxy-2-nonenal protein concentrations. Levosimendan decreased nitrosylated proteins by 10% (P <0.05) and 4-hydroxy-2-nonenal protein concentrations by 13% (P <0.05), but it augmented the rise of iNOS mRNA by 47% (P <0.05). Levosimendan did not affect the inflammatory response in the diaphragm induced by mechanical ventilation and endotoxemia.

conclusionsMechanical ventilation in combination with endotoxemia results in systemic and diaphragmatic inflammation. Levosimendan partly decreased markers of nitrosative and oxidative stress, but did not affect the inflammatory response.

Indexed as

Respiration, ArtificialAldehydesAnimalsCardiotonic AgentsChemokinesDiaphragmEndotoxemiaHydrazonesInflammationInterleukinsMice, Inbred C57BLModels, AnimalNitric Oxide SynthasePyridazinesRNA, MessengerSimendan4-hydroxy-2-nonenalAldehydesCardiotonic AgentsChemokinesHydrazonesInterleukinskeratinocyte-derived chemokinesNitric Oxide SynthasePyridazinesRNA, MessengerSimendan

Identifiers

PMID25888356
PMCPMC4355991
OpenAlexW2022276217

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.