Evidence map›Paper›PMID 27425892›Full record

ArticleNeurobiology of disease2016

Sestrin2 induced by hypoxia inducible factor1 alpha protects the blood-brain barrier via inhibiting VEGF after severe hypoxic-ischemic injury in neonatal rats.

Xudan Shi, Desislava Met Doycheva, Liang Xu, Jiping Tang, Min Yan, John H Zhang

RetractedOpen access · greenAbstract readRetracted Publication
In one paragraph

Article in Neurobiology of disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
13.1field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
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  3. Article
  4. Review
  5. Article
  6. Article
  7. Observational
  8. Review
  9. Sestrin2 as a Protective Shield against Cardiovascular Disease.International journal of molecular sciences · 2023
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. The functions and roles of sestrins in regulating human diseases.Cellular & molecular biology letters · 2022
    Review
  18. Review
  19. Article
  20. Sestrin2 in hypoxia and hypoxia-related diseases.Redox report : communications in free radical research · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Xudan ShiDepartment of Anesthesiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China; Department of Anesthesiology and Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA.
Desislava Met DoychevaDepartment of Anesthesiology and Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA.
Liang XuDepartment of Anesthesiology and Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA.
Jiping TangDepartment of Anesthesiology and Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA.
Min YanDepartment of Anesthesiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China. Electronic address: zryanmin@zju.edu.cn.
John H ZhangDepartment of Anesthesiology and Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA. Electronic address: johnzhang3910@yahoo.com.
Loma Linda University · USSecond Affiliated Hospital of Zhejiang University · CN

Funding

Mechanisms of EPO-Induced NeuroprotectionR01NS054685 · NINDS · LOMA LINDA UNIVERSITY · PI ZHANG, JOHN H · 2007 to 2011
$1.8M
Harness Germinal Matrix HemorrhageR01NS078755 · NINDS · LOMA LINDA UNIVERSITY · PI ZHANG, JOHN H · 2012 to 2016
$1.7M
NINDS NIH HHS R01 NS054685NINDS NIH HHS R01 NS078755
6 · The paper itself

Abstract

objectiveHypoxic ischemic (HI) encephalopathy remains the leading cause of perinatal brain injury resulting in long term disabilities. Stabilization of blood brain barrier (BBB) after HI is an important target, therefore, in this study we aim to determine the role of sestrin2, a stress inducible protein which is elevated after various insults, on BBB stabilization after moderate and severe HI injuries.

methodsRat pups underwent common carotid artery ligation followed by either 150min (severe model) or 100min (moderate model) of hypoxia. 1h post HI, rats were intranasally administered with recombinant human sestrin2 (rh-sestrin2) and sacrificed for infarct area, brain water content, righting reflex and geotaxis reflex. Sestrin2 was silenced using siRNA and an activator/inhibitor of hypoxia inducible factor1α (HIF1α) was used to examine their roles on BBB permeability.

resultsRats subjected to severe HI exhibited larger infarct area and higher sestrin2 expression compared to rats in the moderate HI group. rh-sestrin2 attenuated brain infarct and edema, while silencing sestrin2 reversed these protective effects after severe HI. HIF1α induced sestrin2 activation in severe HI but not in moderate HI groups. A HIF1a agonist was shown to increase permeability of the BBB via vascular endothelial growth factor (VEGF) after moderate HI. However, after severe HI, HIF1α activated both VEGF and sestrin2. But HIF1α dependent sestrin2 activation was the predominant pathway after severe HI which inhibited VEGF and attenuated BBB permeability.

conclusionsrh-sestrin2 attenuated BBB permeability via upregulation of endogenous sestrin2 which was induced by HIF1α after severe HI. However, HIF1α's effects as a prodeath or prosurvival signal were influenced by the severity of HI injury.

Indexed as

AnimalsAnimals, NewbornBiological TransportBlood-Brain BarrierBrainBrain InjuriesDisease Models, AnimalHumansHypoxia-Inducible Factor 1, alpha SubunitHypoxia-Ischemia, BrainNeuroprotective AgentsNuclear ProteinsRats, Sprague-DawleySestrinsVascular Endothelial Growth Factor AHypoxia-Inducible Factor 1, alpha SubunitNeuroprotective AgentsNuclear ProteinsSESN2 protein, humanSesn2 protein, ratSestrinsVascular Endothelial Growth Factor ABrain edemaHi 95Hypoxia inducible factor1Neonatal hypoxic-ischemic encephalopathy

Identifiers

PMID27425892
PMCPMC5010975
OpenAlexW2497783413

What OpenQuestion holds

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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.