Evidence map›Paper›PMID 21214567›Full record

ArticleJournal of neurochemistry2011

Myelin-associated glycoprotein protects neurons from excitotoxicity.

Pablo H H Lopez, Abdullah S Ahmad, Niraj R Mehta, Mayu Toner, Elizabeth A Rowland, Jiangyang Zhang, Sylvain Doré, Ronald L Schnaar

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.4field-weighted citation impact, top 23% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

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  9. Animal Models of Posttraumatic Seizures and Epilepsy.Methods in molecular biology (Clifton, N.J.) · 2016
    Article
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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 at 2 institutions in 1 country.

Pablo H H LopezDepartment of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
Abdullah S Ahmad
Niraj R Mehta
Mayu Toner
Elizabeth A Rowland
Jiangyang Zhang
Sylvain Doré
Ronald L Schnaar
Johns Hopkins University · USJohns Hopkins Medicine · US

Funding

Role of Prostaglandin Receptors in StrokeR01NS046400 · NINDS · UNIVERSITY OF FLORIDA · PI DORE, SYLVAIN · 2003 to 2014
$3.0M
Complex Carbohydrates in Neuronal Cell FunctionR37NS037096 · NINDS · JOHNS HOPKINS UNIVERSITY · PI SCHNAAR, RONALD L · 2005 to 2011
$2.8M
COMPLEX CARBOHYDRATES IN NEURONAL CELL FUNCTIONR01NS037096 · NINDS · JOHNS HOPKINS UNIVERSITY · PI SCHNAAR, RONALD L · 1997 to 2004
$1.9M
PG receptors in controling excitotoxicity in aging brainR01AG022971 · NIA · JOHNS HOPKINS UNIVERSITY · PI DORE, SYLVAIN · 2004 to 2008
$1.6M
In vivo Imaging of Hypoxic-Ischemic Encephalopathy in Neonatal MiceR21NS059529 · NINDS · JOHNS HOPKINS UNIVERSITY · PI ZHANG, JIANGYANG · 2008 to 2009
$395k
NIA NIH HHS AG022971NIA NIH HHS R01 AG022971NINDS NIH HHS NS037096NINDS NIH HHS NS046400NINDS NIH HHS NS059529NINDS NIH HHS R01 NS037096NINDS NIH HHS R01 NS046400NINDS NIH HHS R21 NS059529NINDS NIH HHS R37 NS037096
6 · The paper itself

Abstract

In addition to supporting rapid nerve conduction, myelination nurtures and stabilizes axons and protects them from acute toxic insults. One myelin molecule that protects and sustains axons is myelin-associated glycoprotein (MAG). MAG is expressed on the innermost wrap of myelin, apposed to the axon surface, where it interacts with axonal receptors that reside in lateral membrane domains including gangliosides, the glycosylphosphatidylinositol-anchored Nogo receptors, and β1-integrin. We report here that MAG protection extends beyond the axon to the neurons from which those axons emanate, protecting them from excitotoxicity. Compared to wild type mice, Mag-null mice displayed markedly increased seizure activity in response to intraperitoneal injection of kainic acid, an excitotoxic glutamate receptor agonist. Mag-null mice also had larger lesion volumes in response to intrastriatal injection of the excitotoxin NMDA. Prior injection of a soluble form of MAG partially protected Mag-null mice from NMDA-induced lesions. Hippocampal neurons plated on proteins extracted from wild-type rat or mouse myelin were resistant to kainic acid-induced excitotoxicity, whereas neurons plated on proteins from Mag-null myelin were not. Protection was reversed by anti-MAG antibody and replicated by addition of soluble MAG. MAG-mediated protection from excitotoxicity was dependent on Nogo receptors and β1-integrin. We conclude that MAG engages membrane-domain resident neuronal receptors to protect neurons from excitotoxicity, and that soluble MAG mitigates excitotoxic damage in vivo.

Indexed as

AnimalsAntibodiesCells, CulturedDisease Models, AnimalDisease SusceptibilityEnzyme InhibitorsExcitatory Amino Acid AgonistsHippocampusHumansIntegrin beta ChainsIn Vitro TechniquesKainic AcidMagnetic Resonance ImagingMiceMice, Inbred C57BLMice, KnockoutAntibodiesbeta3 tubulin, mouseEnzyme InhibitorsExcitatory Amino Acid AgonistsIntegrin beta ChainsKainic AcidMag protein, mouseMyelin-Associated GlycoproteinMyelin ProteinsNEP1-40 protein, humanN-MethylaspartatePeptide FragmentsPhosphoinositide Phospholipase CReceptors, Cell SurfaceTubulin

Identifiers

PMID21214567
PMCPMC3059261
OpenAlexW1921804169

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.