Evidence map›Paper›PMID 33362697›Full record

ReviewFrontiers in neurology2020

Pathophysiology of Blood-Brain Barrier Permeability Throughout the Different Stages of Ischemic Stroke and Its Implication on Hemorrhagic Transformation and Recovery.

Sara Bernardo-Castro, João André Sousa, Ana Brás, Carla Cecília, Bruno Rodrigues, Luciano Almendra, Cristina Machado, Gustavo Santo, Fernando Silva, Lino Ferreira and 2 more

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 222 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
222citing papers in PubMed, 3 pooled it
27.3field-weighted citation impact, top 1% 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

222 citing papers in PubMed, 3 syntheses or guidelines pooled it, 358 citations in OpenAlex.

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162 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Sara Bernardo-CastroStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
João André SousaStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Ana BrásStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Carla CecíliaStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Bruno RodriguesStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Luciano AlmendraStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Cristina MachadoStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Gustavo SantoStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Fernando SilvaStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Lino FerreiraFaculdade de Medicina da Universidade de Coimbra, Coimbra, Portugal.
Isabel SantanaStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
João Sargento-FreitasStroke Unit, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
Hospitais da Universidade de Coimbra · PTUniversity of Coimbra · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The blood-brain barrier (BBB) is a dynamic interface responsible for maintaining the central nervous system homeostasis. Its unique characteristics allow protecting the brain from unwanted compounds, but its impairment is involved in a vast number of pathological conditions. Disruption of the BBB and increase in its permeability are key in the development of several neurological diseases and have been extensively studied in stroke. Ischemic stroke is the most prevalent type of stroke and is characterized by a myriad of pathological events triggered by an arterial occlusion that can eventually lead to fatal outcomes such as hemorrhagic transformation (HT). BBB permeability seems to follow a multiphasic pattern throughout the different stroke stages that have been associated with distinct biological substrates. In the hyperacute stage, sudden hypoxia damages the BBB, leading to cytotoxic edema and increased permeability; in the acute stage, the neuroinflammatory response aggravates the BBB injury, leading to higher permeability and a consequent risk of HT that can be motivated by reperfusion therapy; in the subacute stage (1-3 weeks), repair mechanisms take place, especially neoangiogenesis. Immature vessels show leaky BBB, but this permeability has been associated with improved clinical recovery. In the chronic stage (>6 weeks), an increase of BBB restoration factors leads the barrier to start decreasing its permeability. Nonetheless, permeability will persist to some degree several weeks after injury. Understanding the mechanisms behind BBB dysregulation and HT pathophysiology could potentially help guide acute stroke care decisions and the development of new therapeutic targets; however, effective translation into clinical practice is still lacking. In this review, we will address the different pathological and physiological repair mechanisms involved in BBB permeability through the different stages of ischemic stroke and their role in the development of HT and stroke recovery.

Indexed as

blood-brain barrierhemorrhagic transformationpathophysiologypermeabilitystroke

Identifiers

PMID33362697
PMCPMC7756029
OpenAlexW3113239986

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.