Evidence map›Paper›PMID 30659381›Full record

ArticleIntensive care medicine experimental2019

Angiotensin-(1-7) exerts a protective action in a rat model of ventilator-induced diaphragmatic dysfunction.

Vanessa Zambelli, Anna Sigurtà, Laura Rizzi, Letizia Zucca, Paolo Delvecchio, Elena Bresciani, Antonio Torsello, Giacomo Bellani

Open access · goldAbstract read
In one paragraph

Article in Intensive care medicine experimental, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Angiotensin-(1-7) improves skeletal muscle regeneration.European journal of translational myology · 2023
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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

8 authors at 2 institutions in 1 country.

Vanessa ZambelliDepartment of Medicine, University of Milano-Bicocca, Monza, Italy.
Anna SigurtàAnesthesia and Critical Care, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy.
Laura RizziDepartment of Medicine, University of Milano-Bicocca, Monza, Italy.
Letizia ZuccaDepartment of Medicine, University of Milano-Bicocca, Monza, Italy.
Paolo DelvecchioDepartment of Medicine, University of Milano-Bicocca, Monza, Italy.
Elena BrescianiDepartment of Medicine, University of Milano-Bicocca, Monza, Italy.
Antonio TorselloDepartment of Medicine, University of Milano-Bicocca, Monza, Italy.
Giacomo BellaniDepartment of Medicine, University of Milano-Bicocca, Monza, Italy. giacomo.bellani1@unimib.it.ORCID http://orcid.org/0000-0002-3089-205X
University of Milano-Bicocca · ITAzienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVentilator-induced diaphragmatic dysfunction (VIDD) is a common event during mechanical ventilation (MV) leading to rapid muscular atrophy and contractile dysfunction. Recent data show that renin-angiotensin system is involved in diaphragmatic skeletal muscle atrophy after MV. In particular, angiotensin-II can induce marked diaphragm muscle wasting, whereas angiotensin-(1-7) (Ang-(1-7)) could counteract this activity. This study was designed to evaluate the effects of the treatment with Ang-(1-7) in a rat model of VIDD with neuromuscular blocking agent infusion. Moreover, we studied whether the administration of A-779, an antagonist of Ang-(1-7) receptor (Mas), alone or in combination with PD123319, an antagonist of AT2 receptor, could antagonize the effects of Ang-(1-7).

methodsSprague-Dawley rats underwent prolonged MV (8 h), while receiving an iv infusion of sterile saline 0.9% (vehicle) or Ang-(1-7) or Ang-(1-7) + A-779 or Ang-(1-7) + A-779 + PD123319. Diaphragms were collected for ex vivo contractility measurement (with electric stimulation), histological analysis, quantitative real-time PCR, and Western blot analysis.

resultsMV resulted in a significant reduction of diaphragmatic contractility in all groups of treatment. Ang-(1-7)-treated rats showed higher muscular fibers cross-sectional area and lower atrogin-1 and myogenin mRNA levels, compared to vehicle treatment. Treatment with the antagonists of Mas and Ang-II receptor 2 (AT2R) caused a significant reduction of muscular contractility and an increase of atrogin-1 and MuRF-1 mRNA levels, not affecting the cross-sectional fiber area and myogenin mRNA levels.

conclusionsSystemic Ang-(1-7) administration during MV exerts a protective role on the muscular fibers of the diaphragm preserving muscular fibers anatomy, and reducing atrophy. The involvement of Mas and AT2R in the mechanism of action of Ang-(1-7) still remains controversial.

Indexed as

Angiotensin-(1–7)DiaphragmVentilation

Identifiers

PMID30659381
PMCPMC6338614
OpenAlexW2916494203

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.