Evidence map›Paper›PMID 24590631›Full record

ArticleGlia2014

Alpha-synuclein mRNA expression in oligodendrocytes in MSA.

Yasmine T Asi, Julie E Simpson, Paul R Heath, Stephen B Wharton, Andrew J Lees, Tamas Revesz, Henry Houlden, Janice L Holton

Open access · hybridAbstract read
In one paragraph

Article in Glia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 121 papers.

0numbers the graph read from it
0cells of the map it votes in
121citing papers in PubMed
13.0field-weighted citation impact, top 1% 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

121 citing papers in PubMed, 195 citations in OpenAlex.

  1. Article
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61 more citing papers are in PubMed but not listed here.

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 3 institutions in 2 countries.

Yasmine T AsiQueen Square Brain Bank, Department of Molecular Neuroscience, UCL Institute of Neurology, London, United Kingdom.
Julie E Simpson
Paul R Heath
Stephen B Wharton
Andrew J Lees
Tamas Revesz
Henry Houlden
Janice L Holton
University College London · GBUniversity of Sheffield · GBNational Hospital for Neurology and Neurosurgery · GB

Funding

Biotechnology and Biological Sciences Research CouncilMedical Research Council G0802760Medical Research Council G1001253Medical Research Council G108/638Medical Research Council MR/J004308/1Medical Research Council MR/J004758/1
6 · The paper itself

Abstract

Multiple system atrophy (MSA) is a progressive neurodegenerative disease presenting clinically with parkinsonian, cerebellar, and autonomic features. α-Synuclein (αsyn), encoded by the gene SNCA, is the main constituent of glial cytoplasmic inclusion (GCI) found in oligodendrocytes in MSA, but the methods of its accumulation have not been established. The aim of this study is to investigate alterations in regional and cellular SNCA mRNA expression in MSA as a possible substrate for GCI formation. Quantitative reverse transcription polymerase chain reaction (qPCR) was performed on postmortem brain samples from 15 MSA, 5 IPD, and 5 control cases to investigate regional expression in the frontal and occipital regions, dorsal putamen, pontine base, and cerebellum. For cellular expression analysis, neurons and oligodendrocytes were isolated by laser-capture microdissection from five MSA and five control cases. SNCA mRNA expression was not significantly different between the MSA, IPD and control cases in all regions (multilevel model, P = 0.14). After adjusting for group effect, the highest expression was found in the occipital cortex while the lowest was in the putamen (multilevel model, P < 0.0001). At the cellular level, MSA oligodendrocytes expressed more SNCA than control oligodendrocytes and expression in MSA neurons was slightly lower than that in controls, however, these results did not reach statistical significance. We have demonstrated regional variations in SNCA expression, which is higher in cortical than subcortical regions. This study is the first to demonstrate SNCA mRNA expression by oligodendrocytes in human postmortem tissue using qPCR and, although not statistically significant, could suggest that this may be increased in MSA compared to controls.

Indexed as

Gene Expression RegulationAgedAged, 80 and overalpha-SynucleinBrainCohort StudiesFemaleHumansMaleMiddle AgedMultiple System AtrophyOligodendrogliaRNA, Messengeralpha-SynucleinRNA, Messengerglial cytoplasmic inclusionslaser-capture microdissectionmultiple system atrophyoligodendrocytesα-synuclein

Identifiers

PMID24590631
PMCPMC4238782
OpenAlexW1581206995

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Registered trials

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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.