Evidence map›Paper›PMID 32250060›Full record

ArticleAnnals of clinical and translational neurology2020

Repeat expansion scanning of the NOTCH2NLC gene in patients with multiple system atrophy.

Pu Fang, Yanyan Yu, Sheng Yao, Shuyun Chen, Min Zhu, Yunqing Chen, Keji Zou, Lulu Wang, Huan Wang, Ling Xin and 2 more

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
7.0field-weighted citation impact, top 2% 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Adult-onset neuronal intranuclear inclusion disease (NIID) combined with acute ischaemic stroke: a case report.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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  11. Prevalence and Characterization ofNeurology. Genetics · 2024
    Article
  12. Article
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  14. 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
  15. Article
  16. Autonomic dysfunction-dominant phenotype in a Chinese family with biallelic GGC repeat expansions in NOTCH2NLC.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Article
  17. Article
  18. Article
  19. The genetic basis of multiple system atrophy.Journal of translational medicine · 2023
    Review
  20. Article
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

12 authors at 4 institutions in 2 countries.

Pu Fang *Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Yanyan Yu *Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Sheng YaoDepartment of Neurology, The Sixth Medical Center of PLA General Hospital, Beijing, China.
Shuyun ChenDepartment of Neurology, Affiliated Hospital of Guiyang Medical University, Guiyang, China.
Min ZhuDepartment of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Yunqing ChenDepartment of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Keji ZouDepartment of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Lulu WangDepartment of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Huan WangDepartment of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Ling XinDepartment of Health, Exercise Science, and Recreation Management, University of Mississippi, University, Mississippi, USA.
Tao HongDepartment of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, China.ORCID 0000-0002-2693-8991
Daojun HongDepartment of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China.ORCID 0000-0003-1380-3534
Nanchang University · CNChinese PLA General Hospital · CNGuiyang Medical University · CNUniversity of Mississippi · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTrinucleotide GGC repeat expansion in the 5'UTR of the NOTCH2NLC gene has been recognized as the pathogenesis of neuronal intranuclear inclusion disease (NIID). Previous studies have described that some NIID patients showed clinical and pathological similarities with multiple system atrophy (MSA). This study aimed to address the possibility that GGC repeat expansion in NOTCH2NLC might be associated with some cases diagnosed as MSA.

methodsA total of 189 patients with probable or possible MSA were recruited to screen for GGC repeat expansion in NOTCH2NLC by repeat-primed PCR (RP-PCR). In addition, long-read sequencing (LRS) was performed for all patients with RP-PCR-positive expansion, five patients with RP-PCR-negative expansion, and five controls on the Nanopore platform. Skin biopsies were performed on two patients with GGC expansion.

resultsFive of 189 patients (2.6%) were found to have GGC expansion in NOTCH2NLC. LRS results identified that the five patients had GGC expansion between 101 and 266, but five patients with RP-PCR-negative expansion and five controls had GGC expansion between 8 and 29. Besides the typical symptoms and signs of MSA, patients with GGC expansion might have longer disease duration, severe urinary retention, and prominent cognitive impairment. In the skin samples from the patients with GGC expansion, typical p62-postive but alpha-synuclein-negative intranuclear inclusions were found in fibroblasts, adipocyte and ductal epithelial cells of sweat glands.

conclusionTrinucleotide GGC repeat expansion in NOTCH2NLC could be observed in patients with clinically diagnosed MSA. Adult-onset NIID should be considered as a differential diagnosis of MSA.

Indexed as

AgedFemaleHumansMaleMiddle AgedMultiple System AtrophyReceptor, Notch2Trinucleotide Repeat ExpansionNOTCH2 protein, humanReceptor, Notch2

Identifiers

PMID32250060
PMCPMC7187708
OpenAlexW3015087222

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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.