Evidence map›Paper›PMID 19914377›Full record

ArticleNeurobiology of disease2010

Lead exposure stimulates VEGF expression in the spinal cord and extends survival in a mouse model of ALS.

Ana G Barbeito, Laura Martinez-Palma, Marcelo R Vargas, Mariana Pehar, Nelly Mañay, Joseph S Beckman, Luis Barbeito, Patricia Cassina

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of disease, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
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  15. Review
  16. ALS and oxidative stress: the neurovascular scenario.Oxidative medicine and cellular longevity · 2013
    Review
  17. Article
  18. Article
  19. Article
  20. Astrogliosis in amyotrophic lateral sclerosis: role and therapeutic potential of astrocytes.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2010
    Review
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 4 institutions in 2 countries.

Ana G BarbeitoDepartamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Avenida General Flores 2125, 11800, Montevideo, Uruguay.
Laura Martinez-Palma
Marcelo R Vargas
Mariana Pehar
Nelly Mañay
Joseph S Beckman
Luis Barbeito
Patricia Cassina
Institut Pasteur de Montevideo · UYUniversidad de la República · UYCentro Uruguayo de Imagenología Molecular · UYOregon State University · US

Funding

Overall Program/FreiP01AT002034 · NCCIH · OREGON STATE UNIVERSITY · PI HAGEN, TORY M · 2003 to 2012
$11.7M
Superoxide Dismutase, Peroxynitrite and ALSR01NS058628 · NINDS · OREGON STATE UNIVERSITY · PI BECKMAN, JOSEPH S · 2008 to 2012
$1.6M
NCCIH NIH HHS AT002034NCCIH NIH HHS P01 AT002034NIEHS NIH HHS ES00240NINDS NIH HHS NS058628NINDS NIH HHS R01 NS058628
6 · The paper itself

Abstract

Exposure to environmental lead (Pb) is a mild risk factor for amyotrophic lateral sclerosis (ALS), a paralytic disease characterized by progressive degeneration of motor neurons. However, recent evidence has paradoxically linked higher Pb levels in ALS patients with longer survival. We investigated the effects of low-level Pb exposure on survival of mice expressing the ALS-linked superoxide dismutase-1 G93A mutation (SOD1(G93A)). SOD1(G93A) mice exposed to Pb showed longer survival and increased expression of VEGF in the ventral horn associated with reduced astrocytosis. Pretreatment of cultured SOD1(G93A) astrocytes with low, non toxic Pb concentrations upregulated VEGF expression and significantly abrogated motor neuron loss in coculture, an effect prevented by neutralizing antibodies to VEGF. The actions of Pb on astrocytes might explain its paradoxical slowing of disease progression in SOD1(G93A) mice and the improved survival of ALS patients. Understanding how Pb stimulates astrocytic VEGF production and reduces neuroinflammation may yield a new therapeutic approach for treating ALS.

Indexed as

Amyotrophic Lateral SclerosisAnimalsAntibodies, NeutralizingAstrocytesCells, CulturedCoculture TechniquesDisease Models, AnimalDose-Response Relationship, DrugGliosisLeadMiceMice, TransgenicMotor NeuronsNerve DegenerationRatsRats, Sprague-DawleyAntibodies, NeutralizingLeadSod1 protein, mouseSod1 protein, ratSuperoxide DismutaseSuperoxide Dismutase-1Vascular Endothelial Growth Factor A

Identifiers

PMID19914377
PMCPMC2824063
OpenAlexW2009348400

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.