Evidence map›Paper›PMID 37193796›Full record

ArticleJournal of neurology2023

The longitudinal progression of MRI changes in pre-ataxic carriers of SCA3/MJD.

Camila Maria de Oliveira, Vanessa Bielefeldt Leotti, Sandra Polita, Mauricio Anes, Amanda Henz Cappelli, Anastacia Guimarães Rocha, Gabriela Ecco, Gabriela Bolzan, Nathalia Kersting, Juliana Avila Duarte and 4 more

Abstract read
In one paragraph

Article in Journal of neurology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. A Severity-Agnostic Atrophy Pattern in Spinocerebellar Ataxia Type 3: Volumetrics from ENIGMA-Ataxia.Movement disorders : official journal of the Movement Disorder Society · 2026
    Article
  2. Review
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  5. Review
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  8. Sensitivity of Advanced Magnetic Resonance Imaging to Progression over Six Months in Early Spinocerebellar Ataxia.Movement disorders : official journal of the Movement Disorder Society · 2024
    Article
  9. 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

14 authors.

Camila Maria de OliveiraPrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Vanessa Bielefeldt LeottiDepartamento de Estatística, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Sandra PolitaServiço de Radiologia, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Mauricio AnesServiço de Física Médica e Radioproteção, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Amanda Henz CappelliFaculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Anastacia Guimarães RochaFaculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Gabriela EccoFaculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Gabriela BolzanCentros de Pesquisa Clínica e Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Nathalia KerstingPrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Juliana Avila DuartePrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Maria-Luiza Saraiva-PereiraCentros de Pesquisa Clínica e Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Marcondes Cavalcante França JuniorDepartamento de Neurologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil.
Thiago Junqueira Ribeiro RezendeDepartamento de Neurologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil. thiago.jrezende@gmail.com.
Laura Bannach JardimPrograma de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. ljardim@hcpa.edu.br.ORCID http://orcid.org/0000-0001-6907-5068

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 99999.008137/2015-03Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul 17/2551-0001 035-3Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul 17/2551-0001 1463-4Hospital de Clínicas de Porto Alegre 17-0014Hospital de Clínicas de Porto Alegre 17-0015Hospital de Clínicas de Porto Alegre 17-0201
6 · The paper itself

Abstract

backgroundThe natural history of magnetic resonance imaging (MRI) in pre-ataxic stages of spinocerebellar ataxia type 3/Machado-Joseph disease (SCA3/MJD) is not well known. We report cross-sectional and longitudinal data obtained at this stage.

methodsBaseline (follow-up) observations included 32 (17) pre-ataxic carriers (SARA < 3) and 20 (12) related controls. The mutation length was used to estimate the time to onset (TimeTo) of gait ataxia. Clinical scales and MRIs were performed at baseline and after a median (IQR) of 30 (7) months. Cerebellar volumetries (ACAPULCO), deep gray-matter (T1-Multiatlas), cortical thickness (FreeSurfer), cervical spinal cord area (SCT) and white matter (DTI-Multiatlas) were assessed. Baseline differences between groups were described; variables that presented a p < 0.1 after Bonferroni correction were assessed longitudinally, using TimeTo and study time. For TimeTo strategy, corrections for age, sex and intracranial volume were done with Z-score progression. A significance level of 5% was adopted.

resultsSCT at C1 level distinguished pre-ataxic carriers from controls. DTI measures of the right inferior cerebellar peduncle (ICP), bilateral middle cerebellar peduncles (MCP) and bilateral medial lemniscus (ML), also distinguished pre-ataxic carriers from controls, and progressed over TimeTo, with effect sizes varying from 0.11 to 0.20, larger than those of the clinical scales. No MRI variable showed progression over study time. DISCUSSION: DTI parameters of the right ICP, left MCP and right ML were the best biomarkers for the pre-ataxic stage of SCA3/MJD. TimeTo is an interesting timescale, since it captured the longitudinal worsening of these structures.

Indexed as

Machado-Joseph DiseaseSpinocerebellar AtaxiasAtaxiaCross-Sectional StudiesHumansMagnetic Resonance ImagingBiomarkersDTIMRIPre-ataxic periodSpinocerebellar ataxia type 3

Identifiers

PMID37193796
PMCPMC10187509

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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.