Evidence map›Paper›PMID 26661220›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2016

Hypoxic preconditioning enhances neural stem cell transplantation therapy after intracerebral hemorrhage in mice.

Takuma Wakai, Purnima Narasimhan, Hiroyuki Sakata, Eric Wang, Hideyuki Yoshioka, Hiroyuki Kinouchi, Pak H Chan

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, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

41 citing papers in PubMed, 59 citations in OpenAlex.

  1. Review
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  6. Review
  7. Article
  8. A Tale of Two: When Neural Stem Cells Encounter Hypoxia.Cellular and molecular neurobiology · 2023
    Review
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  10. Article
  11. Review
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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

7 authors at 2 institutions in 2 countries.

Takuma WakaiDepartment of Neurosurgery, Department of Neurology and Neurological Sciences, and Program in Neurosciences, Stanford University School of Medicine, Stanford, California, USA.
Purnima NarasimhanDepartment of Neurosurgery, Department of Neurology and Neurological Sciences, and Program in Neurosciences, Stanford University School of Medicine, Stanford, California, USA.
Hiroyuki SakataDepartment of Neurosurgery, Department of Neurology and Neurological Sciences, and Program in Neurosciences, Stanford University School of Medicine, Stanford, California, USA.
Eric WangDepartment of Neurosurgery, Stanford University School of Medicine, Stanford, California, USA.
Hideyuki YoshiokaDepartment of Neurosurgery, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan.
Hiroyuki KinouchiDepartment of Neurosurgery, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan.
Pak H ChanDepartment of Neurosurgery, Department of Neurology and Neurological Sciences, and Program in Neurosciences, Stanford University School of Medicine, Stanford, California, USA phchan@stanford.edu.
Stanford University · USUniversity of Yamanashi · JP

Funding

Reperfusion and Neurovascular Injury in StrokeR01NS025372 · NINDS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI CHAN, PAK H · 1988 to 2015
$5.0M
NINDS NIH HHS R01 NS025372
6 · The paper itself

Abstract

Previous studies have shown that intraparenchymal transplantation of neural stem cells ameliorates neurological deficits in animals with intracerebral hemorrhage. However, hemoglobin in the host brain environment causes massive grafted cell death and reduces the effectiveness of this approach. Several studies have shown that preconditioning induced by sublethal hypoxia can markedly improve the tolerance of treated subjects to more severe insults. Therefore, we investigated whether hypoxic preconditioning enhances neural stem cell resilience to the hemorrhagic stroke environment and improves therapeutic effects in mice. To assess whether hypoxic preconditioning enhances neural stem cell survival when exposed to hemoglobin, neural stem cells were exposed to 5% hypoxia for 24 hours before exposure to hemoglobin. To study the effectiveness of hypoxic preconditioning on grafted-neural stem cell recovery, neural stem cells subjected to hypoxic preconditioning were grafted into the parenchyma 3 days after intracerebral hemorrhage. Hypoxic preconditioning significantly enhanced viability of the neural stem cells exposed to hemoglobin and increased grafted-cell survival in the intracerebral hemorrhage brain. Hypoxic preconditioning also increased neural stem cell secretion of vascular endothelial growth factor. Finally, transplanted neural stem cells with hypoxic preconditioning exhibited enhanced tissue-protective capability that accelerated behavioral recovery. Our results suggest that hypoxic preconditioning in neural stem cells improves efficacy of stem cell therapy for intracerebral hemorrhage.

Indexed as

AnimalsCell SurvivalCerebral HemorrhageGraft SurvivalHemoglobinsHypoxiaIschemic PreconditioningMiceNeural Stem CellsRecovery of FunctionVascular Endothelial Growth Factor AHemoglobinsVascular Endothelial Growth Factor ACell transplantation therapyhypoxic preconditioningintracerebral hemorrhageneural stem cellsvascular endothelial growth factor

Identifiers

PMID26661220
PMCPMC5363661
OpenAlexW2306622424

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.