Evidence map›Paper›PMID 34943877›Full record

ArticleCells2021

Co-Expression of Nogo-A in Dopaminergic Neurons of the Human Substantia Nigra Pars Compacta Is Reduced in Parkinson's Disease.

Gian-Carlo Eyer, Stefano Di Santo, Ekkehard Hewer, Lukas Andereggen, Stefanie Seiler, Hans Rudolf Widmer

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 30% 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

4 citing papers in PubMed, 7 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 1 institution in 1 country.

Gian-Carlo EyerNeurocenter and Program for Regenerative Neuroscience, Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.
Stefano Di SantoNeurocenter and Program for Regenerative Neuroscience, Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.ORCID 0000-0002-4032-999X
Ekkehard HewerInstitute of Pathology, University of Bern, 3010 Bern, Switzerland.
Lukas AndereggenNeurocenter and Program for Regenerative Neuroscience, Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.ORCID 0000-0003-1764-688X
Stefanie SeilerNeurocenter and Program for Regenerative Neuroscience, Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.
Hans Rudolf WidmerNeurocenter and Program for Regenerative Neuroscience, Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.
University of Bern · CH

Funding

Hanela StiftungSwiss Parkinson Foundation
6 · The paper itself

Abstract

Parkinson's disease is mainly characterized by a progressive loss of dopaminergic neurons in the substantia nigra pars compacta. Together with the small number, the high vulnerability of the dopaminergic neurons is a major pathogenic culprit of Parkinson's disease. Our previous findings of a higher survival of dopaminergic neurons in the substantia nigra co-expressing Nogo-A in an animal model of Parkinson's disease suggested that Nogo-A may be associated with dopaminergic neurons resilience against Parkinson's disease neurodegeneration. In the present study, we have addressed the expression of Nogo-A in the dopaminergic neurons in the substantia nigra in postmortem specimens of diseased and non-diseased subjects of different ages. For this purpose, in a collaborative effort we developed a tissue micro array (TMA) that allows for simultaneous staining of many samples in a single run. Interestingly, and in contrast to the observations gathered during normal aging and in the animal model of Parkinson's disease, increasing age was significantly associated with a lower co-expression of Nogo-A in nigral dopaminergic neurons of patients with Parkinson's disease. In sum, while Nogo-A expression in dopaminergic neurons is higher with increasing age, the opposite is the case in Parkinson's disease. These observations suggest that Nogo-A might play a substantial role in the vulnerability of dopaminergic neurons in Parkinson's disease.

Indexed as

AgedAged, 80 and overAge FactorsAgingCell CountDopaminergic NeuronsHumansMaleNogo ProteinsParkinson DiseaseSubstantia NigraTyrosine 3-MonooxygenaseNogo ProteinsTyrosine 3-MonooxygenasehumanimmunofluorescenceNogo-AParkinson’s diseasesubstantia nigra pars compactatyrosine hydroxylase

Identifiers

PMID34943877
PMCPMC8699585
OpenAlexW3216960204

What OpenQuestion holds

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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.