Evidence map›Paper›PMID 23299241›Full record

Trial reportJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2013

High-density lipoproteins limit neutrophil-induced damage to the blood-brain barrier in vitro.

Quoc Bao Dang, Bertrand Lapergue, Alexy Tran-Dinh, Devy Diallo, Juan-Antonio Moreno, Mikael Mazighi, Ignacio A Romero, Babette Weksler, Jean-Baptiste Michel, Pierre Amarenco and 1 more

Open access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.4field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Review
  3. Unveiling the Impact ofJournal of the American Heart Association · 2026
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  18. Bio-protocol · 2017
    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

11 authors at 5 institutions in 4 countries.

Quoc Bao DangINSERM UMR698, Paris, France.
Bertrand Lapergue
Alexy Tran-Dinh
Devy Diallo
Juan-Antonio Moreno
Mikael Mazighi
Ignacio A Romero
Babette Weksler
Jean-Baptiste Michel
Pierre Amarenco
Olivier Meilhac
Inserm · FRUniversité Paris Cité · FRDélégation Paris 7 · FRCornell University · USThe Open University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Breakdown of the blood-brain barrier (BBB) is a key step associated with ischemic stroke and its increased permeability causes extravasation of plasma proteins and circulating leukocytes. Polymorphonuclear neutrophil (PMN) proteases may participate in BBB breakdown. We investigated the role of PMNs in ischemic conditions by testing their effects on a model of BBB in vitro, under oxygen-glucose deprivation (OGD) to mimic ischemia, supplemented or not with high-density lipoproteins (HDLs) to assess their potential protective effects. Human cerebral endothelial cells cultured on transwells were incubated for 4 hours under OGD conditions with or without PMNs and supplemented or not with HDLs or alpha-1 antitrypsin (AAT, an elastase inhibitor). The integrity of the BBB was then assessed and the effect of HDLs on PMN-induced proteolysis of extracellular matrix proteins was evaluated. The release of myeloperoxidase and matrix metalloproteinase 9 (MMP-9) by PMNs was quantified. Polymorphonuclear neutrophils significantly increased BBB permeability under OGD conditions via proteolysis of extracellular matrix proteins. This was associated with PMN degranulation. Addition of HDLs or AAT limited the proteolysis and associated increased permeability by inhibiting PMN activation. Our results suggest a deleterious, elastase-mediated role of activated PMNs under OGD conditions leading to BBB disruption that could be inhibited by HDLs.

Indexed as

Blood-Brain BarrierBrain IschemiaCell LineCoculture TechniquesEndothelial CellsExtracellular Matrix ProteinsFemaleHumansLipoproteins, HDLMaleMatrix Metalloproteinase 9NeutrophilsPeroxidaseProteolysisStrokeExtracellular Matrix ProteinsLipoproteins, HDLMatrix Metalloproteinase 9MMP9 protein, humanPeroxidase

Identifiers

PMID23299241
PMCPMC3618395
OpenAlexW2007097576

What OpenQuestion holds

Textmetadata
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.