Evidence map›Paper›PMID 21669034›Full record

ArticleCell transplantation2012

Stem cells decreased neuronal cell death after hypoxic stress in primary fetal rat neurons in vitro.

Tetsuro Sakai, Yan Xu

Open access · bronzeAbstract read
In one paragraph

Article in Cell transplantation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 47% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Article
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

2 authors at 1 institution in 1 country.

Tetsuro SakaiDepartment of Anesthesiology, The McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. sakait@upmc.edu
Yan Xu
University of Pittsburgh · US

Funding

NMR STUDIES OF MECHANISMS OF GENERAL ANESTHESIAR37GM049202 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI XU, YAN · 2004 to 2013
$4.9M
CEREBRAL PROTECTION &RECOVERY AFTER CIRCULATORY ARRESTR01NS036124 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI XU, YAN · 1998 to 2007
$2.5M
NIGMS NIH HHS R37 GM049202NINDS NIH HHS R01 NS036124NINDS NIH HHS R01NS36124-01
6 · The paper itself

Abstract

To explore stem cell-mediated neuronal protection through extracellular signaling pathways by transplanted stem cells, we sought to identify potential candidate molecules responsible for neuronal protection using an in vitro coculture system. Primary fetal rat hippocampal neurons underwent hypoxia (≤1% oxygen) for 96 h nad then were returned to a normoxic condition. The study group then received rat umbilical cord matrix-derived stem cells, while the control group received fresh media only. The experimental group showed decreased neuronal apoptosis compared to the control group [44.5 ± 1.6% vs. 71.0 ± 4.2% (mean ± SD, p = 0.0005) on day 5] and higher neuronal survival (4.9 ± 1.2 cells/100× field vs. 2.2 ± 0.3, p = 0.02 on day 5). Among 90 proteins evaluated using a protein array, stem cell coculture media showed increased protein secretion of TIMP-1 (5.61-fold), TIMP-2 (4.88), CNTF-Rα (3.42), activin A (2.20), fractalkine (2.04), CCR4 (2.02), and decreased secretion in MIP-2 (0.30-fold), AMPK α1 (0.43), TROY (0.48), and TIMP-3 (0.50). This study demonstrated that coculturing stem cells with primary neurons in vitro decreased neuronal cell death after hypoxia with significantly altered protein secretion. The results suggest that stem cells may offer neuronal protection through extracellular signaling.

Indexed as

ApoptosisCell HypoxiaActivinsAMP-Activated Protein KinasesAnimalsCells, CulturedChemokine CX3CL1Chemokine CXCL2Ciliary Neurotrophic Factor Receptor alpha SubunitCoculture TechniquesFemaleFetusHippocampusNeuronsRatsRats, Sprague-Dawleyactivin AActivinsAMP-Activated Protein KinasesCcr4 protein, ratChemokine CX3CL1Chemokine CXCL2Ciliary Neurotrophic Factor Receptor alpha SubunitCxcl2 protein, ratPrkaa1 protein, ratReceptors, CCR4Receptors, Tumor Necrosis FactorTissue Inhibitor of Metalloproteinase-1Tissue Inhibitor of Metalloproteinase-2Tissue Inhibitor of Metalloproteinase-3

Identifiers

PMID21669034
PMCPMC3388537
OpenAlexW2014569320

What Socratic 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 Socratic graph.