Evidence map›Paper›PMID 34067817›Full record

ArticleInternational journal of molecular sciences2021

Intermittent Hypobaric Hypoxic Preconditioning Provides Neuroprotection by Increasing Antioxidant Activity, Erythropoietin Expression and Preventing Apoptosis and Astrogliosis in the Brain of Adult Rats Exposed to Acute Severe Hypoxia.

Débora Coimbra-Costa, Fernando Garzón, Norma Alva, Tiago C C Pinto, Fernando Aguado, Joan Ramon Torrella, Teresa Carbonell, Ramón Rama

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 23 citations in OpenAlex.

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  14. Improved post-stroke spontaneous recovery by astrocytic extracellular vesicles.Molecular therapy : the journal of the American Society of Gene Therapy · 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

8 authors at 2 institutions in 2 countries.

Débora Coimbra-CostaDepartment of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.
Fernando GarzónDepartment of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.ORCID 0000-0003-4481-9889
Norma AlvaDepartment of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.
Tiago C C PintoDepartment of Neurophychiatry and Behavioural Science, Universidade Federal de Pernambuco, Av. da Engenharia, 186-298, Cidade Universitaria, Recife 50740-600, PE, Brazil.
Fernando AguadoDepartment of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.
Joan Ramon TorrellaDepartment of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.ORCID 0000-0001-6314-6523
Teresa CarbonellDepartment of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.ORCID 0000-0002-7131-3667
Ramón RamaDepartment of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain.
Universitat de Barcelona · ESUniversidade Federal de Pernambuco · BR

Funding

Agència de Gestió d´Ajuts Universitaris i de Reserca (AGAUR), Generalitat de Catalunya 20005BE00372ESAME Pharmaceutical Business School 201911576Ministerio de Ciencia y Tecnología FIT-2002-62
6 · The paper itself

Abstract

backgroundExposure to intermittent hypoxia has been demonstrated to be an efficient tool for hypoxic preconditioning, preventing damage to cells and demonstrating therapeutic benefits. We aimed to evaluate the effects of respiratory intermittent hypobaric hypoxia (IHH) to avoid brain injury caused by exposure to acute severe hypoxia (ASH).

methodsbiomarkers of oxidative damage, mitochondrial apoptosis, and transcriptional factors in response to hypoxia were assessed by Western blot and immunohistochemistry in brain tissue. Four groups of rats were used: (1) normoxic (NOR), (2) exposed to ASH (FiO

resultsASH animals underwent increased oxidative-stress-related parameters, an upregulation in apoptotic proteins and had astrocytes with phenotype forms compatible with severe diffuse reactive astrogliosis. These effects were attenuated and even prevented when the animals were preconditioned with IHH. These changes paralleled the inhibition of NF-κB expression and the increase of erythropoietin (EPO) levels in the brain.

conclusionsIHH exerted neuroprotection against ASH-induced oxidative injury by preventing oxidative stress and inhibiting the apoptotic cascade, which was associated with NF-κB downregulation and EPO upregulation.

Indexed as

AnimalsAntioxidantsApoptosisAstrocytesBrainErythropoietinGliosisHypoxiaMaleMitochondriaNeuronsNeuroprotectionNF-kappa BOxidative StressRatsRats, Sprague-DawleyAntioxidantsErythropoietinNF-kappa Bapoptosis-inducing factorerythropoietinglial fibrillary acidic proteinglutathioneHIFNF-κBsuperoxide dismutase

Identifiers

PMID34067817
PMCPMC8156215
OpenAlexW3161911961

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.