Evidence map›Paper›PMID 19475672›Full record

ArticleAnnals of neurology2009

Delayed treatment with a p53 inhibitor enhances recovery in stroke brain.

Yu Luo, Chi-Chung Kuo, Hui Shen, Jenny Chou, Nigel H Greig, Barry J Hoffer, Yun Wang

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 8% 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

77 citing papers in PubMed, 1 synthesis or guideline pooled it, 107 citations in OpenAlex.

  1. A systematic review and in silico analysis of studies investigating the ischemic penumbra proteome in animal models of experimental stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
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17 more citing papers are in PubMed but not listed here.

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 1 country.

Yu LuoNational Institute on Drug Abuse, National Institutes of Health Intramural Research Program, 251 Bayview Boulevard, Baltimore, MD 21224, USA.
Chi-Chung Kuo
Hui Shen
Jenny Chou
Nigel H Greig
Barry J Hoffer
Yun Wang
National Institutes of Health · USNational Institute on Drug Abuse · US

Funding

Design And Development Of Experimental Therapeutics ((Systemic & Neurodegenerative Disorders and Alzheimer's Disease)ZIAAG000311 · NIA · NATIONAL INSTITUTE ON AGING · PI GREIG, NIGEL H. · 2009 to 2025
$16.0M
Neuroprotective and neuroregenerative effects of trophic factorsZIADA000429 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI WANG, YUN · 2009 to 2013
$2.4M
Neuroprotective/regenerative effects of small molecules and trophic factorsZIADA000461 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI WANG, YUN · 2009 to 2013
$2.3M
THERAPEUTIC STRATEGIES FOR STROKEZ01DA000429 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI WANG, YUN · 1999 to 2008
$1.3M
Neuroprotective/regenerative effects of small molecules and trophic factorsZ01DA000461 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI WANG, YUN · 2003 to 2008
$1.3M
Intramural NIH HHS Z01 DA000429Intramural NIH HHS Z01 DA000461Intramural NIH HHS Z99 DA999999
6 · The paper itself

Abstract

objectiveCerebral ischemia can activate endogenous reparative processes, such as proliferation of endogenous neural progenitor cells (NPCs) in the subventricular zone (SVZ). Most of these new cells die shortly after injury. The purpose of this study was to examine a novel strategy for treatment of stroke at 1 week after injury by enhancing the survival of ischemia-induced endogenous NPCs in SVZ.

methodsAdult rats were subjected to a 90-minutes middle cerebral artery occlusion. A p53 inhibitor pifithrin-alpha (PFT-alpha) was administered to stroke rats from days 6 to 9 after middle cerebral artery occlusion. Locomotor behavior was measured using an activity chamber. Proliferation, survival, migration, and differentiation of endogenous NPCs were examined using quantitative reverse transcription polymerase chain reaction, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling, and immunohistochemistry.

resultsPFT-alpha enhanced functional recovery as assessed by a significant increase in multiple behavioral measurements. Delayed PFT-alpha treatment had no effect on the cell death processes in the lesioned cortical region. However, it enhanced the survival of SVZ progenitor cells, and promoted their proliferation and migration. PFT-alpha inhibited the expression of a p53-dependent proapoptotic gene, termed PUMA (p53-upregulated modulator of apoptosis), within the SVZ of stroke animals. The enhancement of survival/proliferation of NPCs was further found in SVZ neurospheres in tissue culture. PFT-alpha dose-dependently increased the number and size of new neurosphere formation.

interpretationDelayed treatment with a p53 inhibitor PFT-alpha is able to modify stroke-induced endogenous neurogenesis and improve the functional recovery in stroke animals.

Indexed as

Adult Stem CellsAnalysis of VarianceAnimalsBenzothiazolesBrainBromodeoxyuridineCell DifferentiationCell MovementCells, CulturedCerebral VentriclesDisease Models, AnimalEmbryo, MammalianGlial Fibrillary Acidic ProteinInfarction, Middle Cerebral ArteryIn Situ Nick-End LabelingMaleBenzothiazolesBromodeoxyuridineGlial Fibrillary Acidic ProteinpifithrinProliferating Cell Nuclear AntigenTolueneTumor Suppressor Protein p53

Identifiers

PMID19475672
PMCPMC2690614
OpenAlexW2144994572

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.