Evidence map›Paper›PMID 30680941›Full record

ArticleCNS neuroscience & therapeutics2019

Propofol improved hypoxia-impaired integrity of blood-brain barrier via modulating the expression and phosphorylation of zonula occludens-1.

Wei Chen, Xing-Zhu Ju, Yan Lu, Xiao-Wei Ding, Chang-Hong Miao, Jia-Wei Chen

Open access · goldAbstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Wei ChenDepartment of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China.
Xing-Zhu JuDepartment of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
Yan LuDepartment of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China.
Xiao-Wei DingDepartment of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China.
Chang-Hong MiaoDepartment of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China.
Jia-Wei ChenDepartment of Anesthesiology, Fudan University Shanghai Cancer Center, Shanghai, China.ORCID 0000-0003-3726-9823
Shanghai Medical College of Fudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsHypoxia may damage blood-brain barrier (BBB). The neuroprotective effect of propofol has been reported. We aimed to identify whether and how propofol improved hypoxia-induced impairment of BBB integrity.

methodsMouse brain microvascular endothelial cells (MBMECs) and astrocytes were cocultured to establish in vitro BBB model. The effects of hypoxia and propofol on BBB integrity were examined. Further, zonula occludens-1 (ZO-1) expression and phosphorylation, hypoxia-inducible factor-1α (HIF-1α) and vascular endothelial growth factor (VEGF) expression, intracellular calcium concentration and Ca

resultsHypoxia-impaired BBB integrity, which was protected by propofol. Hypoxia-reduced ZO-1 expression, while induced ZO-1 phosphorylation. These effects were attenuated by propofol. The expression of HIF-1α and VEGF was increased by hypoxia and was alleviated by propofol. The hypoxia-mediated suppression of ZO-1 and impaired BBB integrity was reversed by HIF-α inhibitor and VEGF inhibitor. In addition, hypoxia increased the intracellular calcium concentration and induced the phosphorylation of CAMKII, which were mitigated by propofol. The hypoxia-induced phosphorylation of ZO-1 and impaired BBB integrity was ameliorated by calcium chelator and CAMKII inhibitor.

conclusionPropofol could protect against hypoxia-mediated impairment of BBB integrity. The underlying mechanisms may involve the expression and phosphorylation of ZO-1.

Indexed as

AnimalsAstrocytesBlood-Brain BarrierCalciumCardiovascular AgentsCell HypoxiaCells, CulturedCoculture TechniquesEndothelial CellsHypoxia-Inducible Factor 1, alpha SubunitMiceMicrovesselsPhosphorylationPropofolVascular Endothelial Growth Factor AZonula Occludens-1 ProteinCalciumCardiovascular AgentsHif1a protein, mouseHypoxia-Inducible Factor 1, alpha SubunitPropofolTjp1 protein, mouseVascular Endothelial Growth Factor Avascular endothelial growth factor A, mouseZonula Occludens-1 Proteinblood-brain barrierhypoxiamouse brain microvascular endothelial cellspropofolzonula occludens-1

Identifiers

PMID30680941
PMCPMC6515893
OpenAlexW2914808945

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.