Evidence map›Paper›PMID 30531868›Full record

ArticleGene therapy2019

GDNF-mediated rescue of the nigrostriatal system depends on the degree of degeneration.

Luis Quintino, Martino Avallone, Emil Brännstrom, Patrick Kavanagh, Marcus Lockowandt, Patricia Garcia Jareño, Ludivine S Breger, Cecilia Lundberg

Open access · hybridAbstract read
In one paragraph

Article in Gene therapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 27 citations in OpenAlex.

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  11. Cellular Localization ofBrain sciences · 2020
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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 1 institution in 1 country.

Luis QuintinoCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden.
Martino AvalloneCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden.
Emil BrännstromCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden.
Patrick KavanaghCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden.
Marcus LockowandtCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden.
Patricia Garcia JareñoCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden.
Ludivine S BregerCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden.
Cecilia LundbergCNS Gene Therapy, Department of Experimental Medical Science, Lund University, Lund, Sweden. Cecilia.lundberg@med.lu.se.
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glial cell-line derived neurotrophic factor (GDNF) is a promising therapeutic molecule to treat Parkinson's disease. Despite an excellent profile in experimental settings, clinical trials testing GDNF have failed. One of the theories to explain these negative outcomes is that the clinical trials were done in late-stage patients that have advanced nigrostriatal degeneration and may therefore not respond to a neurotrophic factor therapy. Based on this idea, we tested if the stage of nigrostriatal degeneration is important for GDNF-based therapies. Lentiviral vectors expressing regulated GDNF were delivered to the striatum of rats to allow GDNF expression to be turned on either while the nigrostriatal system was degenerating or after the nigrostriatal system had been fully lesioned by 6-OHDA. In the group of animals where GDNF expression was on during degeneration, neurons were rescued and there was a reversal of motor deficits. Turning GDNF expression on after the nigrostriatal system was lesioned did not rescue neurons or reverse motor deficits. In fact, these animals were indistinguishable from the control groups. Our results suggest that GDNF can reverse motor deficits and nigrostriatal pathology despite an ongoing nigrostriatal degeneration, if there is still a sufficient number of remaining neurons to respond to therapy.

Indexed as

AnimalsFemaleGenetic TherapyGlial Cell Line-Derived Neurotrophic FactorLentivirusOxidopamineParkinson DiseaseRatsRats, Sprague-DawleyStriatonigral DegenerationSubstantia NigraGlial Cell Line-Derived Neurotrophic FactorOxidopamine

Identifiers

PMID30531868
PMCPMC6514883
OpenAlexW2904239288

What OpenQuestion holds

Textmetadata
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.