Evidence map›Paper›PMID 24251624›Full record

ArticleJournal of neurochemistry2014

Ischemic neurons activate astrocytes to disrupt endothelial barrier via increasing VEGF expression.

Ying-Na Li, Rong Pan, Xu-Jun Qin, Wei-Lin Yang, Zhifeng Qi, Wenlan Liu, Ke Jian Liu

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
5.9field-weighted citation impact, top 4% 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

66 citing papers in PubMed, 117 citations in OpenAlex.

  1. Review
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  4. The dual role of VEGF-A in a complex in vitro model of oxaliplatin-induced neurotoxicity: Pain-related and neuroprotective effects.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
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6 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

7 authors at 5 institutions in 2 countries.

Ying-Na LiDepartment of Geriatrics, The Second Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, China.
Rong Pan
Xu-Jun Qin
Wei-Lin Yang
Zhifeng Qi
Wenlan Liu
Ke Jian Liu
University of New Mexico · USAir Force Medical University · CNCapital Medical University · CNSecond Affiliated Hospital of Xi'an Jiaotong University · CNXi'an Jiaotong University · CN

Funding

UNM HSC Clinical and Translational Science CenterUL1TR001449 · NCATS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI CAMPEN, MATTHEW J, PANDHI, NANCY · 2015 to 2024
$36.9M
University of New Mexico Clinical and Translational Science CenterUL1TR000041 · NCATS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI LARSON, RICHARD S · 2012 to 2014
$9.8M
Integrative Program in CNS Pathophysiology ResearchP30GM103400 · NIGMS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI LIU, KE JIAN · 2012 to 2016
$4.7M
Effect of tissue pO2 on free-radical damage in strokeR01AG031725 · NIA · UNIVERSITY OF NEW MEXICO · PI LIU, KE JIAN · 2007 to 2011
$1.5M
NCATS NIH HHS UL1 TR000041NCATS NIH HHS UL1 TR001449NIA NIH HHS R01 AG031725NIA NIH HHS R01AG031725NIGMS NIH HHS P30 GM103400NIGMS NIH HHS P30GM103400
6 · The paper itself

Abstract

Blood-brain barrier (BBB) disruption occurring within the first few hours of ischemic stroke onset is closely associated with hemorrhagic transformation following thrombolytic therapy. However, the mechanism of this acute BBB disruption remains unclear. In the neurovascular unit, neurons do not have direct contact with the endothelial barrier; however, they are highly sensitive and vulnerable to ischemic injury, and may act as the initiator for disrupting BBB when cerebral ischemia occurs. Herein, we employed oxygen-glucose deprivation (OGD) and an in vitro BBB system consisting of brain microvascular cells and astrocytes to test this hypothesis. Neurons (CATH.a cells) were exposed to OGD for 3-h before co-culturing with endothelial monolayer (bEnd 3 cells), or endothelial cells plus astrocytes (C8-D1A cells). Incubation of OGD-treated neurons with endothelial monolayer alone did not increase endothelial permeability. However, when astrocytes were present, the endothelial permeability was significantly increased, which was accompanied by loss of occludin and claudin-5 proteins as well as increased vascular endothelial growth factor (VEGF) secretion into the conditioned medium. Importantly, all these changes were abolished when VEGF was knocked down in astrocytes by siRNA. Our findings suggest that ischemic neurons activate astrocytes to increase VEGF production, which in turn induces endothelial barrier disruption.

Indexed as

AstrocytesBlood-Brain BarrierCell HypoxiaCells, CulturedCoculture TechniquesEndothelium, VascularGlucoseHumansNeuronsOxygenVascular Endothelial Growth Factor AGlucoseOxygenVascular Endothelial Growth Factor AVEGFA protein, humanastrocyteblood-brain barrierneuronoxygen-glucose deprivationVEGF

Identifiers

PMID24251624
PMCPMC3965617
OpenAlexW2048329840

What OpenQuestion holds

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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.