Evidence map›Paper›PMID 25669912›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2015

Dabigatran abrogates brain endothelial cell permeability in response to thrombin.

Brian Thomas Hawkins, Yu-Huan Gu, Yoshikane Izawa, Gregory John del Zoppo

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Direct Oral Anticoagulants Versus Vitamin K Antagonists in Cerebral Venous Thrombosis: A Systematic Review and Meta-Analysis of 4,929 Patients.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  2. Intracerebral hemorrhage and thrombin-induced alterations in cerebral microvessel matrix.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
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  12. Damage of vascular endothelial barrier induced by explosive blast and its clinical significance.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2016
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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

4 authors at 1 institution in 1 country.

Brian Thomas HawkinsDepartment of Medicine (Hematology), Division of Hematology, Seattle, Washington, USA.
Yu-Huan GuDepartment of Medicine (Hematology), Division of Hematology, Seattle, Washington, USA.
Yoshikane IzawaDepartment of Medicine (Hematology), Division of Hematology, Seattle, Washington, USA.
Gregory John del Zoppo1] Department of Medicine (Hematology), Division of Hematology, Seattle, Washington, USA [2] Department of Neurology, University of Washington School of Medicine, Seattle, Washington, USA.
University of Washington · US

Funding

Neurovascular Adhesion Receptors and Barrier IntegrityR01NS053716 · NINDS · UNIVERSITY OF WASHINGTON · PI DEL ZOPPO, GREGORY J · 2006 to 2016
$3.5M
Matrix Metalloproteinases and Neurons in Focal IschemiaR37NS038710 · NINDS · UNIVERSITY OF WASHINGTON · PI DEL ZOPPO, GREGORY J · 2004 to 2010
$3.2M
MATRIX METALLOPROTEINASES AND NEURONS IN FOCAL ISCHEMIAR01NS038710 · NINDS · SCRIPPS RESEARCH INSTITUTE · PI DEL ZOPPO, GREGORY J · 1999 to 2002
$1.5M
NINDS NIH HHS NS 038710NINDS NIH HHS NS 053716NINDS NIH HHS R01 NS038710NINDS NIH HHS R01 NS053716NINDS NIH HHS R37 NS038710
6 · The paper itself

Abstract

Atrial fibrillation (AF) increases the risk and severity of thromboembolic stroke. Generally, antithrombotic agents increase the hemorrhagic risk of thromboembolic stroke. However, significant reductions in thromboembolism and intracerebral hemorrhage have been shown with the antithrombin dabigatran compared with warfarin. As thrombin has been implicated in microvessel injury during cerebral ischemia, we hypothesized that dabigatran decreases the risk of intracerebral hemorrhage by direct inhibition of the thrombin-mediated increase in cerebral endothelial cell permeability. Primary murine brain endothelial cells (mBECs) were exposed to murine thrombin before measuring permeability to 4-kDa fluorescein isothiocyanate-dextran. Thrombin increased mBEC permeability in a concentration-dependent manner, without significant endothelial cell death. Pretreatment of mBECs with dabigatran completely abrogated the effect of thrombin on permeability. Neither the expressions of the endothelial cell β1-integrins nor the tight junction protein claudin-5 were affected by thrombin exposure. Oxygen-glucose deprivation (OGD) also increased permeability; this effect was abrogated by treatment with dabigatran, as was the additive effect of thrombin and OGD on permeability. Taken together, these results indicate that dabigatran could contribute to a lower risk of intracerebral hemorrhage during embolism-associated ischemia from AF by protection of the microvessel permeability barrier from local thrombin challenge.

Indexed as

AnimalsAntithrombinsBenzimidazolesbeta-AlanineBrainCells, CulturedCell SurvivalClaudin-5DabigatranEndothelial CellsGlucoseIntegrin beta1MaleMiceMice, Inbred C57BLOxygenAntithrombinsBenzimidazolesbeta-AlanineClaudin-5DabigatranGlucoseIntegrin beta1OxygenThrombin

Identifiers

PMID25669912
PMCPMC4640263
OpenAlexW1985852751

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.