Evidence map›Paper›PMID 34833115›Full record

ReviewLife (Basel, Switzerland)2021

Alpha-Synuclein and Cognitive Decline in Parkinson Disease.

Tian-Sin Fan, Sam Chi-Hao Liu, Ruey-Meei Wu

Open access · goldAbstract readReview
In one paragraph

Review in Life (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.5field-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

27 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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  4. Review
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  6. Association between α-synuclein in plasma neuron-derived exosomes and clinical symptoms in Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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  9. Review
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  14. Review
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  16. Impact of 6-OHDA injection and microtrauma in the ratHistology and histopathology · 2025
    Article
  17. Review
  18. Article
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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

3 authors at 1 institution in 1 country.

Tian-Sin FanDepartment of Neurology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu City 300, Taiwan.
Sam Chi-Hao LiuDepartment of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei City 100, Taiwan.
Ruey-Meei WuDepartment of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei City 100, Taiwan.ORCID 0000-0002-4947-5467
National Taiwan University Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson disease (PD) is the second most common neurodegenerative disorder in elderly people. It is characterized by the aggregation of misfolded alpha-synuclein throughout the nervous system. Aside from cardinal motor symptoms, cognitive impairment is one of the most disabling non-motor symptoms that occurs during the progression of the disease. The accumulation and spreading of alpha-synuclein pathology from the brainstem to limbic and neocortical structures is correlated with emerging cognitive decline in PD. This review summarizes the genetic and pathophysiologic relationship between alpha-synuclein and cognitive impairment in PD, together with potential areas of biomarker advancement.

Indexed as

alpha-synucleinbiomarkercognitiondementiageneticLewy bodyneurodegenerationnon-motor symptomParkinson diseaseSNCA

Identifiers

PMID34833115
PMCPMC8625417
OpenAlexW3212421951

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.