Evidence map›Paper›PMID 21710361›Full record

ArticleJournal of molecular neuroscience : MN2012

Recombinant human angiopoietin-1 ameliorates the expressions of ZO-1, occludin, VE-cadherin, and PKCα signaling after focal cerebral ischemia/reperfusion in rats.

Hang Yu, Ping Wang, Ping An, Yixue Xue, Xue Yixue

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Journal of molecular neuroscience : MN, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
4.1field-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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. The effect of angiopoietin-1 upregulation on the outcome of acute ischaemic stroke in rodent models: A meta-analysis.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    Pooled it
  2. Review
  3. Article
  4. Occludin: a gatekeeper of brain Infection by HIV-1.Fluids and barriers of the CNS · 2023
    Review
  5. Review
  6. Review
  7. Article
  8. Activation and Role of Astrocytes in Ischemic Stroke.Frontiers in cellular neuroscience · 2021
    Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Infection and immunity · 2017
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
    Yixue, Xue [corrected to Xue, Yixue].
5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Hang YuDepartment of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110001, China; Department of Physiology, Daqing Branch of Haerbin Medical University, Daqing 163319, China. xueyixue888@yahoo.com.cn
Ping Wang
Ping An
Yixue Xue
Xue Yixue
China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was performed to determine whether recombinant human angiopoietin-1 (Ang-1) decreases the permeability of the blood-brain barrier (BBB) in focal cerebral ischemia and reperfusion rats, whether Ang-1 opens the BBB by affecting tight junction associated proteins zonula occluden-1 (ZO-1), occludin and adherens junction protein vascular endothelial (VE)-cadherin, and whether the protein kinase C (PKC)α/myosin light chain (MLC) signaling pathway involves in it. The rats were divided into eight groups randomly: (1) sham-operated group, (2) ischemia group, (3-5) ischemia-reperfusion (middle cerebral artery occlusion and reperfusion (MCAO/R) 12 h, 48 h, and 7 days) and 0.9% saline groups, (6-8) ischemia-reperfusion (MCAO/R 12 h, 48 h, and 7 days) and Ang-1 groups. The BBB permeability was assessed by Evans blue extravasation. The messenger RNA and protein expressions of ZO-1, occludin, and VE-cadherin were determined by reverse transcription-polymerase chain reaction, western blot, and immunohistochemistry assays. The BBB permeability was significantly decreased after Ang-1 injection. The expressions of ZO-1, occludin, and VE-cadherin were increased after Ang-1 injection. These were in accordance with the results of immunohistochemistry assays. PKCα and phosphorylated MLC (p-MLC) expressions were decreased after Ang-1 injection. This study demonstrated that Ang-1 may decrease the permeability of BBB in MCAO/R rat by upregulation of ZO-1, occludin, and VE-cadherin. The decreased expressions of PKCα and p-MLC induced by Ang-1 also involved in this process.

Indexed as

Gene Expression RegulationSignal TransductionUp-RegulationAngiopoietin-1AnimalsAntigens, CDBrain IschemiaCadherin 5CadherinsCapillary PermeabilityDisease Models, AnimalHumansMaleOccludinProtein Kinase C-alphaRandom AllocationAngiopoietin-1ANGPT1 protein, humanAntigens, CDCadherin 5CadherinsOccludinOcln protein, ratProtein Kinase C-alphaRecombinant ProteinsTjp1 protein, ratZonula Occludens-1 Protein

Identifiers

PMID21710361
OpenAlexW2022729064

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.