Evidence map›Paper›PMID 19228403›Full record

ArticleBMC neuroscience2009

Genomic and biochemical approaches in the discovery of mechanisms for selective neuronal vulnerability to oxidative stress.

Xinkun Wang, Asma Zaidi, Ranu Pal, Alexander S Garrett, Rogelio Braceras, Xue-wen Chen, Mary L Michaelis, Elias K Michaelis

Abstract read
In one paragraph

Article in BMC neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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, 1 synthesis or guideline pooled it.

  1. Pooled it
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  14. Age-Associated mRNA and miRNA Expression Changes in the Blood-Brain Barrier.International journal of molecular sciences · 2019
    Article
  15. Motor Neuron Susceptibility in ALS/FTD.Frontiers in neuroscience · 2019
    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

8 authors.

Xinkun WangHiguchi Biosciences Center, University of Kansas, Lawrence, KS 66047, USA. xwang@ku.edu
Asma Zaidi
Ranu Pal
Alexander S Garrett
Rogelio Braceras
Xue-wen Chen
Mary L Michaelis
Elias K Michaelis

Funding

Research Design and Analysis Core (RDAC)P30HD002528 · NICHD · UNIVERSITY OF KANSAS LAWRENCE · PI FOWLER, STEPHEN CLETIUS · 1985 to 2015
$22.1M
TRAFFICKING OF THE PLASMA MEMBRANE CA2+-ATPASE TO RAFTSP20RR017708 · NCRR · UNIVERSITY OF KANSAS LAWRENCE · PI FISCHER, CHRISTOPHER JAMES · 2002 to 2011
$20.1M
SARCOPENIA AND APOPTOSIS: ROLE OF SERCA AND BCL-2P01AG012993 · NIA · UNIVERSITY OF KANSAS LAWRENCE · PI MICHAELIS, ELIAS K · 1995 to 2012
$14.0M
Proteomic characterization of aging cerebellumR01AG025350 · NIA · UNIVERSITY OF KANSAS LAWRENCE · PI SCHONEICH, CHRISTIAN · 2004 to 2008
$1.4M
NCRR NIH HHS RR-P20 17708NIA NIH HHS AG025350NIA NIH HHS AG12993NIA NIH HHS P01 AG012993NIA NIH HHS R01 AG025350NICHD NIH HHS HD02528NICHD NIH HHS P30 HD002528
6 · The paper itself

Abstract

backgroundOxidative stress (OS) is an important factor in brain aging and neurodegenerative diseases. Certain neurons in different brain regions exhibit selective vulnerability to OS. Currently little is known about the underlying mechanisms of this selective neuronal vulnerability. The purpose of this study was to identify endogenous factors that predispose vulnerable neurons to OS by employing genomic and biochemical approaches.

resultsIn this report, using in vitro neuronal cultures, ex vivo organotypic brain slice cultures and acute brain slice preparations, we established that cerebellar granule (CbG) and hippocampal CA1 neurons were significantly more sensitive to OS (induced by paraquat) than cerebral cortical and hippocampal CA3 neurons. To probe for intrinsic differences between in vivo vulnerable (CA1 and CbG) and resistant (CA3 and cerebral cortex) neurons under basal conditions, these neurons were collected by laser capture microdissection from freshly excised brain sections (no OS treatment), and then subjected to oligonucleotide microarray analysis. GeneChip-based transcriptomic analyses revealed that vulnerable neurons had higher expression of genes related to stress and immune response, and lower expression of energy generation and signal transduction genes in comparison with resistant neurons. Subsequent targeted biochemical analyses confirmed the lower energy levels (in the form of ATP) in primary CbG neurons compared with cortical neurons.

conclusionLow energy reserves and high intrinsic stress levels are two underlying factors for neuronal selective vulnerability to OS. These mechanisms can be targeted in the future for the protection of vulnerable neurons.

Indexed as

GenomeOxidative StressAnimalsAnimals, NewbornBrainCell Culture TechniquesCerebellumCerebral CortexGene ExpressionHippocampusNeuronsOligonucleotide Array Sequence AnalysisOrgan Culture TechniquesParaquatRatsReverse Transcriptase Polymerase Chain ReactionParaquat

Identifiers

PMID19228403
PMCPMC2677396

What OpenQuestion holds

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LicenceCC BY
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.