Evidence map›Paper›PMID 23732989›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2013

Recovery from experimental parkinsonism by semaphorin-guided axonal growth of grafted dopamine neurons.

N Emmanuel Díaz-Martínez, Elisa Tamariz, N Fabián Díaz, Claudia M García-Peña, Alfredo Varela-Echavarría, Iván Velasco

Open access · hybridAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 27% 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

11 citing papers in PubMed, 27 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

N Emmanuel Díaz-MartínezInstituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, México, México.
Elisa Tamariz
N Fabián Díaz
Claudia M García-Peña
Alfredo Varela-Echavarría
Iván Velasco
Universidad Nacional Autónoma de México · MXInstituto Nacional de Perinatología · MX

Funding

Therapy for Experimental Parkinson using ES cellsR01NS057850 · NINDS · UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO · PI VELASCO, IVAN · 2006 to 2010
$237k
NINDS NIH HHS NS 057850NINDS NIH HHS R01 NS057850
6 · The paper itself

Abstract

Cell therapy in animal models of Parkinson's disease (PD) is effective after intrastriatal grafting of dopamine (DA) neurons, whereas intranigral transplantation of dopaminergic cells does not cause consistent behavioral recovery. One strategy to promote axonal growth of dopaminergic neurons from the substantia nigra (SN) to the striatum is degradation of inhibitory components such as chondroitin sulphate proteoglycans (CSPG). An alternative is the guidance of DA axons by chemotropic agents. Semaphorins 3A and 3C enhance axonal growth of embryonic stem (ES) cell-derived dopaminergic neurons in vitro, while Semaphorin 3C also attracts them. We asked whether intranigral transplantation of DA neurons, combined with either degradation of CSPG or with grafts of Semaphorin 3-expressing cells, towards the striatum, is effective in establishing a new nigrostriatal dopaminergic pathway in rats with unilateral depletion of DA neurons. We found depolarization-induced DA release in dorsal striatum, DA axonal projections from SN to striatum, and concomitant behavioral improvement in Semaphorin 3-treated animals. These effects were absent in animals that received intranigral transplants combined with Chondroitinase ABC treatment, although partial degradation of CSPG was observed. These results are evidence that Semaphorin 3-directed long-distance axonal growth of dopaminergic neurons, resulting in behavioral improvement, is possible in adult diseased brains.

Indexed as

Cell- and Tissue-Based TherapyAnimalsAxonsCell DifferentiationCell LineCorpus StriatumDopaminergic NeuronsEmbryonic Stem CellsFemaleHEK293 CellsHumansMiceOxidopamineParkinsonian DisordersRatsRotarod Performance TestOxidopamineSemaphorins

Identifiers

PMID23732989
PMCPMC3734661
OpenAlexW1979200197

What OpenQuestion holds

Textmetadata
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.