Evidence map›Paper›PMID 21515377›Full record

ArticleNeurobiology of disease2011

Angiopoietin/Tie2 pathway mediates type 2 diabetes induced vascular damage after cerebral stroke.

Xu Cui, Michael Chopp, Alex Zacharek, Xinchun Ye, Cynthia Roberts, Jieli Chen

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of disease, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
2.1field-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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.

  1. Pooled it
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  11. Plasminogen deficiency causes reduced angiogenesis and behavioral recovery after stroke in mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
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  20. Roles of Pericytes in Stroke Pathogenesis.Cell transplantation · 2018
    Review
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.

Xu CuiDepartment of Neurology, Henry Ford Hospital, Detroit, MI 48202, USA.
Michael Chopp
Alex Zacharek
Xinchun Ye
Cynthia Roberts
Jieli Chen
Henry Ford Hospital · US

Funding

PREDICTION OF HUMAN BRAIN INFARCTION BY MRIP01NS023393 · NINDS · HENRY FORD HOSPITAL · PI ZHANG, ZHENG GANG · 1986 to 2011
$11.0M
Neurorestorative therapy of stroke with agents that increase HDLR01AG031811 · NIA · HENRY FORD HEALTH SYSTEM · PI CHEN, JIELI · 2009 to 2013
$1.4M
Neuroprotective therapy of stroke with HUCNC and simvastatinR41NS064708 · NINDS · SANERON CCEL THERAPEUTICS, INC. · PI CHEN, JIELI · 2010 to 2010
$177k
NIA NIH HHS AG031811NIA NIH HHS R01 AG031811NINDS NIH HHS 1R41NS064708NINDS NIH HHS P01 NS023393NINDS NIH HHS P01 NS23393NINDS NIH HHS R41 NS064708
6 · The paper itself

Abstract

We investigated the changes and the molecular mechanisms of cerebral vascular damage after stroke in type-2 diabetic (T2DM) mice. Adult male db/db T2DM and wild-type (WT) mice were subjected to transient middle cerebral artery occlusion (MCAo) and sacrificed 24 hours after MCAo. T2DM-mice exhibited significantly increased blood glucose, brain hemorrhagic rate, mortality and cerebrovascular density, but decreased cerebrovascular diameter, arteriolar density and arterial mural cell numbers in the ischemic brain compared with WT mice. The hemorrhagic rate was significantly correlated with the mortality (r = 0.85). T2DM-mice also exhibited increased blood-brain barrier leakage and concomitantly, increased Angiopoietin2, but decreased Angiopoietin1, Tie2 and tight junction protein expression in the ischemic brain. Angiopoietin1 gene expression also significantly decreased in the common carotid artery (CCA) in T2DM-mice compared with WT mice after stroke. To further test the effects of T2DM on cerebrovascular damage, we performed in vitro studies. The capillary-like tube formation of primary cultured mouse brain endothelial cells (MBECs) significantly increased, but artery cell migration in the primary CCA cultures significantly decreased both in Sham and MCAo T2DM-mice compared with the WT mice. Angiopoietin1 treatment significantly increased artery cell migration in T2DM-CCA after MCAo. Tie2-FC, a neutralized Tie2 antibody, significantly decreased artery cell migration in WT-CCA after MCAo. Therefore, decreased Angiopoietin1/Tie2 and increased Angiopoietin2 expression may contribute to diabetes-induced vascular damage after stroke.

Indexed as

Angiopoietin-1Angiopoietin-2AnimalsCells, CulturedCerebral ArteriesDiabetes Mellitus, Type 2Diabetic AngiopathiesDisease Models, AnimalDown-RegulationInfarction, Middle Cerebral ArteryMaleMiceMice, TransgenicReceptor Protein-Tyrosine KinasesReceptor, TIE-2Up-RegulationAngiopoietin-1Angiopoietin-2Angpt1 protein, mouseReceptor Protein-Tyrosine KinasesReceptor, TIE-2Tek protein, mouse

Identifiers

PMID21515377
PMCPMC3096677
OpenAlexW2088697955

What OpenQuestion holds

Textmetadata
LicenceTDM
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.