Evidence map›Paper›PMID 23950950›Full record

ArticlePloS one2013

Prolonged mechanical ventilation alters the expression pattern of angio-neogenetic factors in a pre-clinical rat model.

Christian S Bruells, Karen Maes, Rolf Rossaint, Debby Thomas, Nele Cielen, Christian Bleilevens, Ingmar Bergs, Ursina Loetscher, Agnes Dreier, Ghislaine Gayan-Ramirez and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
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

14 citing papers in PubMed, 23 citations in OpenAlex.

  1. Trial
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  9. Impaired diaphragm resistance vessel vasodilation with prolonged mechanical ventilation.Journal of applied physiology (Bethesda, Md. : 1985) · 2019
    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

12 authors at 3 institutions in 3 countries.

Christian S BruellsDepartment of Anesthesiology, University Hospital of the RWTH Aachen, Aachen, Germany. cbruells@ukaachen.de
Karen Maes
Rolf Rossaint
Debby Thomas
Nele Cielen
Christian Bleilevens
Ingmar Bergs
Ursina Loetscher
Agnes Dreier
Ghislaine Gayan-Ramirez
Brad J Behnke
Joachim Weis
RWTH Aachen University · DEKU Leuven · BEUniversity of Florida · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveMechanical ventilation (MV) is a life saving intervention for patients with respiratory failure. Even after 6 hours of MV, diaphragm atrophy and dysfunction (collectively referred to as ventilator-induced diaphragmatic dysfunction, VIDD) occurs in concert with a blunted blood flow and oxygen delivery. The regulation of hypoxia sensitive factors (i.e. hypoxia inducible factor 1α, 2α (HIF-1α,-2α), vascular endothelial growth factor (VEGF)) and angio-neogenetic factors (angiopoietin 1-3, Ang) might contribute to reactive and compensatory alterations in diaphragm muscle.

methodsMale Wistar rats (n = 8) were ventilated for 24 hours or directly sacrificed (n = 8), diaphragm and mixed gastrocnemius muscle tissue was removed. Quantitative real time PCR and western blot analyses were performed to detect changes in angio-neogenetic factors and inflammatory markers. Tissues were stained using Isolectin (IB 4) to determine capillarity and calculate the capillary/fiber ratio.

resultsMV resulted in up-regulation of Ang 2 and HIF-1α mRNA in both diaphragm and gastrocnemius, while VEGF mRNA was down-regulated in both tissues. HIF-2α mRNA was reduced in both tissues, while GLUT 4 mRNA was increased in gastrocnemius and reduced in diaphragm samples. Protein levels of VEGF, HIF-1α, -2α and 4 did not change significantly. Additionally, inflammatory cytokine mRNA (Interleukin (IL)-6, IL-1β and TNF α) were elevated in diaphragm tissue.

conclusionThe results demonstrate that 24 hrs of MV and the associated limb disuse induce an up-regulation of angio-neogenetic factors that are connected to HIF-1α. Changes in HIF-1α expression may be due to several interactions occurring during MV.

Indexed as

Gene Expression RegulationRespiration, ArtificialVentilators, MechanicalAngiopoietin-2AnimalsBasic Helix-Loop-Helix ProteinsDiaphragmDown-RegulationEndothelial PAS Domain-Containing Protein 1Glucose Transporter Type 4Hypoxia-Inducible Factor 1, alpha SubunitInterleukin-1betaInterleukin-6MaleMuscle, SkeletalRatsAngiopoietin-2Basic Helix-Loop-Helix ProteinsEndothelial PAS Domain-Containing Protein 1Glucose Transporter Type 4Hypoxia-Inducible Factor 1, alpha SubunitInterleukin-1betaInterleukin-6RNA, MessengerTransforming Growth Factor alphaVascular Endothelial Growth Factor A

Identifiers

PMID23950950
PMCPMC3738548
OpenAlexW1977093898

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.