Evidence map›Paper›PMID 31159847›Full record

ArticleCritical care (London, England)2019

Post-stroke treatment with argon attenuated brain injury, reduced brain inflammation and enhanced M2 microglia/macrophage polarization: a randomized controlled animal study.

Jingjin Liu, Kay Nolte, Gary Brook, Lisa Liebenstund, Agnieszka Weinandy, Anke Höllig, Michael Veldeman, Antje Willuweit, Karl-Josef Langen, Rolf Rossaint and 1 more

Open access · goldAbstract read
In one paragraph

Article in Critical care (London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 6% 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

34 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
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  8. Article
  9. Positive Effects of Argon Inhalation After Traumatic Brain Injury in Rats.International journal of molecular sciences · 2024
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  18. Cavin-1 promotes M2 macrophages/microglia polarization via SOCS3.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2022
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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

11 authors at 2 institutions in 1 country.

Jingjin LiuDepartment of Anesthesiology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Kay NolteDepartment of Neuropathology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Gary BrookDepartment of Neuropathology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Lisa LiebenstundDepartment of Anesthesiology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Agnieszka WeinandyDepartment of Neuropathology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Anke HölligDepartment of Anesthesiology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Michael VeldemanDepartment of Anesthesiology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Antje WilluweitInstitute of Neuroscience and Medicine (INM-4), Forschungszentrum Jülich, Jülich, Germany.
Karl-Josef LangenInstitute of Neuroscience and Medicine (INM-4), Forschungszentrum Jülich, Jülich, Germany.
Rolf RossaintDepartment of Anesthesiology, Medical Faculty RWTH Aachen University, Aachen, Germany.
Mark CoburnDepartment of Anesthesiology, Medical Faculty RWTH Aachen University, Aachen, Germany. mcoburn@ukaachen.de.ORCID http://orcid.org/0000-0002-7930-0270
RWTH Aachen University · DEForschungszentrum Jülich · DE

Funding

Deutsche Forschungsgemeinschaft CO 799/9-1
6 · The paper itself

Abstract

backgroundIn recent years, argon has been shown to exert neuroprotective effects in an array of models. However, the mechanisms by which argon exerts its neuroprotective characteristics remain unclear. Accumulating evidence imply that argon may exert neuroprotective effects via modulating the activation and polarization of microglia/macrophages after ischemic stroke. In the present study, we analyzed the underlying neuroprotective effects of delayed argon application until 7 days after reperfusion and explored the potential mechanisms.

methodsTwenty-one male Wistar rats underwent transient middle cerebral artery occlusion or sham surgery randomly for 2 h using the endoluminal thread model. Three hours after transient middle cerebral artery occlusion induction and 1 h after reperfusion, animals received either 50% vol Argon/50% vol O

resultsThe 6-point neuroscore from 24 h to d7 after reperfusion showed that tMCAO Ar group displayed significantly improved neurological performance compared to tMCAO N

conclusionsArgon administration with a 3 h delay after stroke onset and 1 h after reperfusion significantly alleviated neurological deficit within the first week and preserved the neurons at the ischemic boundary zone 7 days after stroke. Moreover, argon reduced the excessive microglia/macrophage activation and promoted the switch of microglia/macrophage polarization towards the anti-inflammatory M2 phenotype. Studies making efforts to further elucidate the protective mechanisms and to benefit the translational application are of great value.

Indexed as

ArgonBrain InjuriesEncephalitisStrokeAnalysis of VarianceAnimalsDisease Models, AnimalInfarction, Middle Cerebral ArteryMaleNeuroprotective AgentsRandom AllocationRatsRats, WistarArgonNeuroprotective AgentsArgonInfarction, middle cerebral arteryNeuroprotectionNoble gases

Identifiers

PMID31159847
PMCPMC6547472
OpenAlexW2948904718

What OpenQuestion holds

Textmetadata
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.