Evidence map›Paper›PMID 34067663›Full record

ArticleBiomolecules2021

Plasma Extracellular Vesicle α-Synuclein Level in Patients with Parkinson's Disease.

Chen-Chih Chung, Lung Chan, Jia-Hung Chen, Yi-Chieh Hung, Chien-Tai Hong

Open access · goldAbstract read
In one paragraph

Article in Biomolecules, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
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  7. Article
  8. Measurement of α-synuclein as protein cargo in plasma extracellular vesicles.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  19. Extracellular Vesicles in Mental Disorders: A State-of-art Review.International journal of biological sciences · 2023
    Review
  20. 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

5 authors at 2 institutions in 1 country.

Chen-Chih ChungDepartment of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.ORCID 0000-0001-6743-6667
Lung ChanDepartment of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.ORCID 0000-0001-5795-4460
Jia-Hung ChenDepartment of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.ORCID 0000-0002-7982-0612
Yi-Chieh HungDepartment of Neurosurgery, Department of Surgery, Chi-Mei Medical Center, Tainan 71004, Taiwan.
Chien-Tai HongDepartment of Neurology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
Taipei Medical University-Shuang Ho Hospital · TWChi Mei Medical Center · TW

Funding

Chi-Mei Medical Center 110CM-TMU-13Ministry of Science and Technology MOST 107-2314-B-038-043
6 · The paper itself

Abstract

backgroundThe most established pathognomonic protein of Parkinson's disease (PD), α-synuclein, is extensively investigated for disease diagnosis and prognosis; however, investigations into whether the free form of α-synuclein in the blood functions as a PD biomarker have not been fruitful. Extracellular vesicles (EVs) secreted from cells and present in blood transport molecules are novel platforms for biomarker identification. In blood EVs, α-synuclein originates predominantly from the brain without the interference of the blood-brain barrier. The present study investigated the role of plasma EV-borne α-synuclein as a biomarker of PD.

methodsPatients with mild to moderate stages of PD (

resultsCompared with controls, we observed significantly lower plasma EV α-synuclein levels in the patients with PD (PD: 56.0 ± 3.7 fg/mL vs. control: 74.5 ± 4.3 fg/mL,

conclusionPlasma EV α-synuclein was significantly different between the control and PD group and was associated with akinetic-rigidity symptom severity in patients with PD. This study corroborates the possible diagnostic and subtyping roles of plasma EV α-synuclein in patients with PD, and it further provides a basis for this protein's clinical relevance and feasibility as a PD biomarker.

Indexed as

Down-RegulationAgedalpha-SynucleinBiomarkersCase-Control StudiesEarly DiagnosisExtracellular VesiclesFemaleHumansMaleMental Status and Dementia TestsMiddle AgedParkinson DiseasePrognosisalpha-SynucleinBiomarkersSNCA protein, humanakinetic-rigidityextracellular vesiclesParkinson’s diseaseα-synuclein

Identifiers

PMID34067663
PMCPMC8155846
OpenAlexW3160140846

What OpenQuestion holds

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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.