Evidence map›Paper›PMID 33527742›Full record

ArticleAnnals of clinical and translational neurology2021

Peripheral synucleinopathy in Parkinson disease with LRRK2 G2385R variants.

Jing Yang, Hao Wang, Yanpeng Yuan, Shiheng Fan, Lanjun Li, Chenyang Jiang, Chengyuan Mao, Changhe Shi, Yuming Xu

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Cutaneous Phosphorylated Alpha-Synuclein in Lewy Body Dementia.Annals of clinical and translational neurology · 2026
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  11. A comprehensive study of clinicopathological and genetic features of neuronal intranuclear inclusion disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Article
  12. Review
  13. Fluid and Biopsy Based Biomarkers in Parkinson's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  14. Review
  15. Review
  16. Article
  17. Review
  18. α-Synuclein Deposition in Sympathetic Nerve Fibers in Genetic Forms of Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2021
    Observational
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

9 authors at 2 institutions in 1 country.

Jing YangDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.ORCID 0000-0002-7356-5083
Hao WangDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
Yanpeng YuanDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
Shiheng FanKey Laboratory of Cerebrovascular Disease of Henan Province, Zhengzhou, Henan, 450052, China.
Lanjun LiDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
Chenyang JiangDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
Chengyuan MaoDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
Changhe ShiDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
Yuming XuDepartment of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.ORCID 0000-0003-2689-9897
First Affiliated Hospital of Zhengzhou University · CNFirst Affiliated Hospital of Henan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveRecent studies demonstrated cutaneous phosphorylated α synuclein (p-syn) deposition in idiopathic and some monogenetic Parkinson disease (PD) patients, suggesting synucleinopathy identical to that in the brain. Although the LRRK2 Gly2385Arg (G2385R) variant is a common PD risk factor in the Chinese population, the pathogenesis of PD with G2385R variant has not been reported. We investigated whether synucleinopathy and small fiber neuropathy (SFN) are associated with the G2385R variant.

methodsWe performed genotyping in 59 PD patients and 30 healthy controls from the skin biopsy database. The scale of SFN was assessed, as well as bright-field immunohistochemistry against antiprotein gene product 9.5 (PGP9.5) and double-labeling immunofluorescence with anti-PGP9.5 and anti-p-syn.

results(1) p-syn deposited in the skin nerve fibers of G2385R carrier PD patients, which was a different pattern from noncarriers, without no difference observed between proximal and distal regions; (2) decreased distal intraepidermal nerve fiber density was found in both the G2385R carrier and the noncarrier PD group, and was negatively correlated with composite autonomic symptom score-31 item (COMPASS-31) scores; (3) PD patients with the G2385R variant showed a more peculiar clinical profile than noncarriers with a higher nonmotor symptoms scale, COMPASS-31 score, and levodopa equivalent dose, in addition to an increased prevalence of certain autonomic symptoms or rapid eye movement sleep behavior disorders.

interpretationSynucleinopathy is related to the LRRK2 G2385R genotype and implies a different pathogenesis in G2385R variant carriers and noncarriers. This study also extended the clinical profiles of PD patients with the G2385R variant.

Indexed as

Small Fiber NeuropathySynucleinopathiesAgedalpha-SynucleinFemaleHumansLeucine-Rich Repeat Serine-Threonine Protein Kinase-2MaleMiddle AgedParkinson DiseasePhenotypePhosphorylationSkinalpha-SynucleinLeucine-Rich Repeat Serine-Threonine Protein Kinase-2LRRK2 protein, humanSNCA protein, human

Identifiers

PMID33527742
PMCPMC7951097
OpenAlexW3127681157

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.