Raras
Buscar doenças, sintomas, genes...
Síndrome de ataxia espinocerebelosa-dismorfia
ORPHA:1185CID-10 · G11.8OMIM 271270DOENÇA RARA

A Ataxia Espinocerebelar com Dismorfismo é marcada por características faciais específicas, associadas a dificuldades na fala (disartria), atraso no desenvolvimento psicomotor (das habilidades mentais e motoras), falta de coordenação (ataxia), curvatura da coluna (escoliose) e deformidades nos pés. Três casos foram descritos e a transmissão parece ser autossômica recessiva, o que significa que a criança precisa herdar um gene alterado de cada um dos pais para desenvolver a condição. Os pais, nesse caso, geralmente são apenas portadores e não apresentam a doença.

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Introdução

O que você precisa saber de cara

📋

A Ataxia Espinocerebelar com Dismorfismo é marcada por características faciais específicas, associadas a dificuldades na fala (disartria), atraso no desenvolvimento psicomotor (das habilidades mentais e motoras), falta de coordenação (ataxia), curvatura da coluna (escoliose) e deformidades nos pés. Três casos foram descritos e a transmissão parece ser autossômica recessiva, o que significa que a criança precisa herdar um gene alterado de cada um dos pais para desenvolver a condição. Os pais, nesse caso, geralmente são apenas portadores e não apresentam a doença.

Escala de raridade

CLASSIFICAÇÃO ORPHANET · BRASIL 2024
<1 / 1 000 000
Ultra-rara
<1/50k
Muito rara
1/20k
Rara
1/10k
Pouco freq.
1/5k
Incomum
1/2k
Prevalência
0.0
Worldwide
Casos conhecidos
3
pacientes catalogados
Início
Infancy
🏥
SUS: Cobertura mínimaScore: 15%
CID-10: G11.8
🇧🇷Dados SUS / DATASUS
PROCEDIMENTOS SIGTAP (2)
0202010694
Sequenciamento completo do exoma (WES)genetic_test
0301070040
Atendimento em reabilitação — doenças rarasrehabilitation
Você se identifica com essa condição?
O Raras está aqui pra te apoiar — com ou sem diagnóstico

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Entender a doença

Do básico ao detalhe, leia no seu ritmo

Preparando trilha educativa...

Sinais e sintomas

O que aparece no corpo e com que frequência cada sintoma acontece

Partes do corpo afetadas

🦴
Ossos e articulações
4 sintomas
🧠
Neurológico
4 sintomas
👁️
Olhos
4 sintomas
😀
Face
3 sintomas
🧬
Pele e cabelo
2 sintomas
👂
Ouvidos
1 sintomas

+ 8 sintomas em outras categorias

Características mais comuns

90%prev.
Genu recurvatum
Muito frequente (99-80%)
90%prev.
Epicanto
Muito frequente (99-80%)
90%prev.
Osso longo delgado
Muito frequente (99-80%)
90%prev.
Nariz curto
Muito frequente (99-80%)
90%prev.
Borda do vermelhão espessa
Muito frequente (99-80%)
90%prev.
Atraso global do desenvolvimento
Muito frequente (99-80%)
26sintomas
Muito frequente (21)
Frequente (5)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 26 características clínicas mais associadas, ordenadas por frequência.

Genu recurvatum
Muito frequente (99-80%)90%
EpicantoEpicanthus
Muito frequente (99-80%)90%
Osso longo delgadoSlender long bone
Muito frequente (99-80%)90%
Nariz curtoShort nose
Muito frequente (99-80%)90%
Borda do vermelhão espessaThick vermilion border
Muito frequente (99-80%)90%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Últimos 10 anos200publicações
Pico202562 papers
Linha do tempo
2026Hoje · 2026🧪 2002Primeiro ensaio clínico📈 2025Ano de pico
Publicações por ano (últimos 10 anos)

Encontrou um erro ou informação desatualizada? Sugira uma correção →

Genética e causas

O que está alterado no DNA e como passa nas famílias

🧬

Nenhum gene associado encontrado

Os dados genéticos desta condição ainda estão sendo catalogados.

Diagnóstico

Os sinais que médicos procuram e os exames que confirmam

Carregando...

Tratamento e manejo

Remédios, cuidados de apoio e o que precisa acompanhar

Pipeline de tratamentos
Pipeline regulatório — de medicamentos já aprovados a drogas em pesquisa exploratória.
3Fase 32
2Fase 21
·Pré-clínico2
Medicamentos catalogadosEnsaios clínicos· 0 medicamentos · 5 ensaios
Carregando informações de tratamento...

Onde tratar no SUS

Hospitais de referência no Brasil e o protocolo oficial do SUS (PCDT)

🇧🇷 Atendimento SUS — Síndrome de ataxia espinocerebelosa-dismorfia

🗺️

Selecione um estado ou use sua localização para ver resultados.

Dados de DATASUS/CNES, SBGM, ABNeuro e Ministério da Saúde. Sempre confirme a disponibilidade diretamente com o estabelecimento.

Pesquisa ativa

Ensaios clínicos abertos e novidades científicas recentes

🟢 Recrutando agora

1 pesquisa recrutando participantes. Converse com seu médico sobre a possibilidade de participar.

Outros ensaios clínicos

0 ensaios clínicos encontrados.

Distribuição por fase
Ver todos no ClinicalTrials.gov
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Publicações mais relevantes

🥇Melhor nível de evidência: Revisão sistemática
Timeline de publicações
0 papers (10 anos)
#1

T2-FLAIR hyperintensities in the inferior cerebellar peduncles and their association with clinical symptoms, molecular and MRI markers in male FMR1 premutation carriers.

Frontiers in molecular neuroscience2026

FMR1 premutation carriers (55-200 CGG repeats) are at risk of developing fragile X-associated tremor/ataxia syndrome (FXTAS), a neurodegenerative disorder associated with motor and cognitive impairment. Bilateral hyperintensities of the middle cerebellar peduncles (MCP sign) are the major radiological hallmarks of FXTAS. The inferior cerebellar peduncles (ICP) contain fibers related to proprioception and vestibular functions (such as the rostral and posterior spinocerebellar tracts and the juxta restiform body), which are clinically associated with cerebellar gait ataxia, a major clinical criterion for FXTAS diagnosis. However, the ICP hyperintensity has yet to be studied in FXTAS. We evaluated 588 MRI scans (mean 2.05 visits/participant) from 202 male premutation carriers (164 with FXTAS and 38 without FXTAS at last visits) and 85 controls. Two radiologists, independently, rated as absent or present the signal of the right and left ICP in T2-Fluid-attenuated inversion recovery (FLAIR) scans. Mixed-effects models were used for statistical analysis adjusting for age. Only carriers with FXTAS revealed ICP hyperintensities at last visits. Furthermore, ICP hyperintensity was associated with brain atrophy, increased white matter disease, the MCP sign, FXTAS stage, abnormal gait, lower cognitive functioning and faster age-related increase in anxiety and depression scores. Finally, carriers with ICP hyperintensities had significantly higher CGG repeat length than carriers without ICP hyperintensities. This study describes ICP hyperintensity as a new potential radiological finding in FXTAS, suggests involvement of the vestibulo-cerebellar, rostral, and posterior spinocerebellar tracts, and the vestibular system in FXTAS physiopathology, and reinforces the association of CGG expansion in the range of brain changes seen in FXTAS.

#2

Incorporating Patient Perspectives into a Composite Score for Measuring Disease Progression in Spinocerebellar Ataxia (SCA).

Neurology and therapy2026 Apr

The spinocerebellar ataxia composite score (SCACOMS) comprises items from the functional Scale for the Assessment and Rating of Ataxia (f-SARA) and the Clinician Global Impression of Change (CGI-C). In the derivation of SCACOMS, weights reflecting 1-year responsiveness were assigned to each item using partial least squares (PLS) regression modeling. The current objective was to incorporate patient-feedback into the SCACOMS item weights, examine corresponding responsiveness of the composite scale, and discuss potential implications for future use. Item weights derived by PLS regression were compared to each item's relative importance as assigned by 16 patients with SCA during semi-structured interviews. SCACOMS item weights were adjusted using the following combinations: (1) 50/50 weighted combination of PLS and patient weights and (2) reducing the weight of CGI-C to 20% and averaging individual item weights obtained from each perspective. The 1-year mean to standard deviation ratios (MSDRs) for the resulting reweighted scales were compared, with larger MSDRs indicating greatest sensitivity to disease progression. The PLS-derived SCACOMS had the highest MSDR (0.99). When item weights were averaged across the two sources, the resulting MSDR was 0.91. When the weight of CGI-C was set to 20%, reflecting patient preferences for higher weights on the discrete symptoms, the MSDR was 0.79. This study took a novel approach to enhance the face validity of SCACOMS by incorporating patient feedback into the statistically optimized item weights. The result is the merging of objectively derived item weightings (reflecting optimal scale responsiveness) with patient-assigned relevance. While this update may increase the patient centricity of a composite measure, this comes at the expense of reduced sensitivity. This potential trade-off in sensitivity to detect change should be evaluated in the context of the composite measure's intended use.

#3

Pearls & Oy-sters: SCA27B as an Elusive Genetic Cause of Episodic Neurologic Symptoms in Later Adulthood.

Neurology2026 Mar 24

Spinocerebellar ataxia type 27B (SCA27B) is a recently identified autosomal dominant form of late-onset cerebellar ataxia (LOCA) caused by a guanine-adenine-adenine (GAA) > 250 intronic repeat expansion in the fibroblast growth factor 14 (FGF14) gene. Recent studies suggest that SCA27B may account for 10%-60% of undiagnosed patients with LOCA. Age at onset ranges from 40s to 70s, and clinical features include slowly progressive pancerebellar syndrome with prominent gait ataxia and cerebellar oculomotor abnormalities. Positive family history may be absent, particularly given the characteristically late onset of this condition. It is important to note that up to half of the patients with SCA27B report episodic symptoms, including imbalance, vertigo, visual disturbances, or dysarthria, which might initially manifest without clear interictal clinical or radiologic features of cerebellar ataxia. These features can result in the misdiagnosis of SCA27B. We present 2 patients with LOCA. Both patients initially received alternative working diagnoses, which were re-examined several years later only after symptoms and imaging findings progressed. First-line genetic testing for both patients was unrevealing because of the deep intronic location of the causative variant. Ultimately, whole-genome-based testing in one case and targeted FGF14 trinucleotide repeat analysis in the other revealed the diagnosis of SCA27B. These cases highlight SCA27B as a cause of episodic neurologic symptoms in an older adult population. Furthermore, these cases demonstrate the potential pitfalls of panel and exome-based genetic testing, given the important role of pathogenic intronic variants in the spectrum of neurogenetic disorders.

#4

Functional and Epigenomic Consequences of DNMT1 Variants in Inherited Neurological Disorders.

International journal of molecular sciences2026 Jan 26

DNMT1 variants are linked to complex neurodegenerative syndromes, yet their variant-specific functional and epigenomic consequences remain poorly defined. DNMT1 variants were identified in eight patients using gene-panel or whole-exome sequencing. Functional effects were assessed by site-directed mutagenesis and transient expression in HEK293T cells. Genome-wide methylation profiling of peripheral blood leukocyte DNA was performed using Nanopore sequencing, enabling direct quantification of 5-methylcytosine (5mC). CpG island-level differential methylation and gene set enrichment analysis (GSEA) were conducted. Variants in the replication foci targeting sequence (RFTS) domain (p.Y511H, p.Y540C, p.H569R) exhibited reduced DNMT1 protein expression, decreased enzymatic activity, and cytosolic aggregation. Variants in the C-terminal catalytic domain (p.A1334V and p.P1546S) showed reduced protein expression with relatively mild enzymatic impairment. Patients carrying the p.Y511H variant demonstrated a significant reduction in global 5mC levels compared with controls. Principal component analysis revealed distinct methylomic profiles separating most patients from controls, with marked intra- and inter-familial heterogeneity. CpG island-level analysis identified a single significantly hypomethylated region in p.Y511H carriers, and GSEA revealed differential enrichment of multiple Gene Ontology biological pathways. This study defines domain-dependent functional effects of DNMT1 variants and provides the first nanopore-based methylome analysis, revealing variant-specific and heterogeneous epigenomic alterations.

#5

Patient-reported Vision Quality-of-life in Parkinsonian Syndromes and Ataxias and Association with Clinical Oculomotor Findings.

medRxiv : the preprint server for health sciences2026 Feb 05

Oculomotor dysfunction is common in parkinsonian syndromes and ataxias, but its impact on patient-reported vision-related quality of life (VQoL) remains insufficiently understood. To characterize VQoL across parkinsonian syndromes and ataxias and assess the functional significance of specific oculomotor abnormalities in spinocerebellar ataxias. Participants were recruited at Massachusetts General Hospital ( n =231): 104 with Parkinson's disease (PD), 10 with progressive supranuclear palsy (PSP), 56 with genetically defined ataxias (SCA2, SCA3, SCA6, SCA27B, CANVAS), and 61 healthy controls. VQoL was assessed using a 13-item subset of the Visual Activities Questionnaire targeting depth perception, visual acuity/spatial vision, and visual processing speed. Clinical severity was assessed with the Brief Ataxia Rating Scale and Modified International Cooperative Ataxia Rating Scale, and subjective symptoms with PROM-Ataxia. Group comparisons, correlations, and regression analyses were performed. All disease groups reported significantly worse VQoL than controls, with the largest deficits in visual processing speed. PSP showed the greatest impairment across all domains, while PD was less affected. Individuals with SCA3 and SCA6 had significantly lower VQoL across all subcategories. In ataxias, VQoL correlated moderately with PROM-Ataxia and weakly with clinical oculomotor scores. Gaze-evoked nystagmus was the only oculomotor sign independently associated with reduced VQoL. Parkinsonian syndromes and ataxias are associated with substantial VQoL impairment, particularly in visual processing speed. Gaze-evoked nystagmus is a key predictor of reduced VQoL in ataxias, highlighting the functional relevance of fixation instability. Patient-reported outcomes and oculomotor assessments are essential for capturing visual disability in clinical care and trials.

Publicações recentes

Ver todas no PubMed

📚 EuropePMCmostrando 198

2026

Childhood-Onset Huntington's Disease-Like Presentation of SCA17 with Intermediate Repeats, A Case Report.

Cerebellum (London, England)
2026

T2-FLAIR hyperintensities in the inferior cerebellar peduncles and their association with clinical symptoms, molecular and MRI markers in male FMR1 premutation carriers.

Frontiers in molecular neuroscience
2026

Targeting Cognitive Dysfunction in Spinocerebellar Ataxia Type 2 Through Digital Cognitive Training.

Cerebellum (London, England)
2026

Incorporating Patient Perspectives into a Composite Score for Measuring Disease Progression in Spinocerebellar Ataxia (SCA).

Neurology and therapy
2026

Pearls & Oy-sters: SCA27B as an Elusive Genetic Cause of Episodic Neurologic Symptoms in Later Adulthood.

Neurology
2026

Functional and Epigenomic Consequences of DNMT1 Variants in Inherited Neurological Disorders.

International journal of molecular sciences
2026

Patient-reported Vision Quality-of-life in Parkinsonian Syndromes and Ataxias and Association with Clinical Oculomotor Findings.

medRxiv : the preprint server for health sciences
2026

A Novel Gain-of-Function ITPR1 Variant Associated With a Movement Disorder Characterized by Tremor and Dystonia.

American journal of medical genetics. Part A
2026

Expanding the Genetic Landscape of ATXN2 Variants: Insights From a Biallelic Trinucleotide Repeat Expansion in an Acadian Family.

Neurology. Genetics
2026

Non-Huntington's disease chorea: an expanding universe with acquired causes.

Brain : a journal of neurology
2026

Novel Clinical Insights From a Swedish RFC1 Spectrum Disorder Cohort.

European journal of neurology
2026

Hereditary Ataxias: From Pathogenesis and Clinical Features to Neuroimaging, Fluid, and Digital Biomarkers-A Scoping Review.

International journal of molecular sciences
2026

eVGeMdb: a manually curated database for experimentally validated genetic modifiers of neurodegenerative disorders.

NAR molecular medicine
2025

Praja1 E3 ubiquitin ligase and the role it plays in neurodegeneration.

The FEBS journal
2025

Spinocerebellar ataxia, autosomal recessive type 23 (SCAR23) with compound TDP2 variants: clinical, molecular, and quantitative follow-up.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2025

Neurocognition, cerebellar functions and psychiatric features in spinocerebellar ataxia type 34: a case series.

Frontiers in computational neuroscience
2025

Fatigue Limits Motor and Cognitive Improvements after High-intensity Exercise Prior to Balance Training over Telehealth in People with Spinocerebellar Ataxia.

International journal of telerehabilitation
2026

Brain atrophy staging in spinocerebellar ataxia type 3 for clinical prognosis and trial enrichment.

EBioMedicine
2025

Hydrogen Sulfide Signaling in Neurodegenerative Movement Disorders.

Handbook of experimental pharmacology
2025

Two-year decline in performance on the Cerebellar Cognitive Affective Syndrome Scale in spinocerebellar ataxias.

Journal of neurology
2025

A Novel SIL1 Variant (p.E342K) Associated with Marinesco-Sjögren Syndrome Impairs Protein Stability and Function.

International journal of molecular sciences
2025

Systematic Phenotyping and Molecular Analysis of the Woozy Mouse: A Preclinical Model of Cerebellar Ataxia.

Molecular neurobiology
2025

ITPR1 Deletion in a Patient With Sensory Ataxic Neuropathy and Sjögren Syndrome.

Journal of the peripheral nervous system : JPNS
2025

Beyond Parkinson's Disease: A Narrative Review of Neuromelanin MRI in Neurodegenerative Diseases.

Journal of neuroimaging : official journal of the American Society of Neuroimaging
2025

H263A and SCAN1/H493R mutant TDP1 block TOP1-induced double-strand break repair during gene transcription in quiescent cells and promote cell death.

Cell death &amp; disease
2025

Psychomotor and non-motor correlates of cognition in spinocerebellar ataxias Types 1, 2, 3, and 6.

Brain communications
2025

[Type 28 spinocerebellar ataxia].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova
2025

Home-based Hybrid Assistive Limb Lumbar Type Telerehabilitation in Spinocerebellar Ataxias: A Nonrandomized Open-label Trial.

Cerebellum (London, England)
2025

From Mutations to Microbes: Investigating the Impact of the Gut Microbiome on Repeat Expansion Disorders.

Journal of neurochemistry
2025

Enhancing Cerebellar Findings with Positional Manoeuvres.

Cerebellum (London, England)
2025

The cerebellum beyond motor control: cognitive dysfunction in spinocerebellar ataxias.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2025

First Report of Co-Occurring FGF14 (SCA27B) and RFC1 (CANVAS) Repeat Expansions in Two of Three Siblings with Late-Onset Cerebellar Ataxia.

Cerebellum (London, England)
2025

Development and validation of a composite digital balance score for spinocerebellar ataxia: a prospective study.

The Lancet. Digital health
2025

Elevated Interleukin-8 in Spinocerebellar Ataxia Type 2: A Distinct Peripheral Immune Signature Unrelated To Disease Severity.

Cerebellum (London, England)
2025

Spinocerebellar ataxias masquerading as movement disorders: clinical and genetic characterization.

Frontiers in neurology
2025

Progress and challenges in sporadic late-onset cerebellar ataxias.

Nature reviews. Neurology
2025

Spatial perspective taking is impaired in spinocerebellar ataxias and Friedreich ataxia.

Scientific reports
2025

Prevalence, Severity, and Progression of Cerebellar Cognitive-Affective Syndrome in Patients With Spinocerebellar Ataxias.

Neurology
2025

Ataxia and oculomotor apraxia caused by a large-scale deletion in the senataxin gene.

Journal of applied genetics
2025

Best Oculomotor Endpoints for Clinical Trials in Hereditary Ataxias: A Systematic Review and Consensus by the Ataxia Global Initiative Working Group on Digital‑Motor Biomarkers.

Cerebellum (London, England)
2025

Non-coding repeat analyses in patients with Parkinson's disease.

Frontiers in neurology
2025

Skeletal Muscle Pathology in Autosomal Recessive Cerebellar Ataxias: Insights from Marinesco-Sjögren Syndrome.

International journal of molecular sciences
2025

Is Contralateral Suppression of Otoacoustic Emission Observable in Unilateral Cochlear Implant Users With Auditory Neuropathy Spectrum Disorder?

American journal of audiology
2025

The Natural History Study and Biomarker Collection of the Clinical Research Consortium for the Study of Cerebellar Ataxia (CRC-SCA).

Cerebellum (London, England)
2025

Spinocerebellar Ataxia Type 27B can be Suspected Based on Clinical Phenotype: The Massachusetts General Hospital Ataxia Center Experience.

Cerebellum (London, England)
2025

Progression of biological markers in spinocerebellar ataxia type 3: longitudinal analysis of prospective data from the ESMI cohort.

The Lancet regional health. Europe
2025

Expanding the Clinical, Pathological, and Molecular Phenotypes of Tetratricopeptide 19 (TTC19) Gene Mutations: A Case Report from India.

Neurology India
2025

Developmental and Epileptic Encephalopathy as a Novel Clinical Hallmark of SCA21.

Neuropediatrics
2025

Neuropathy in GAA-FGF14 Late-Onset Cerebellar Ataxia (SCA27B): Prevalence and Characteristics.

European journal of neurology
2025

The human spinothalamic tract: lessons from cordotomy.

Brain communications
2025

Retinoic Acid-Induced 1 Gene and Neuropsychiatric Diseases: A Systematic Review.

Expert reviews in molecular medicine
2025

Respiratory Evaluation in Spinocerebellar ataxia Type 2.

Cerebellum (London, England)
2025

The Cerebellar Neuropsychiatric Rating Scale in the Spinocerebellar Ataxias.

Cerebellum (London, England)
2025

Nanopore Long-Read Sequencing as a First-Tier Diagnostic Test to Detect Repeat Expansions in Neurological Disorders.

International journal of molecular sciences
2025

Selective activation of antioxidant resources and energy deficiency in Marinesco-Sjögren syndrome fibroblasts as an adaptive biological response to Sil1 loss.

Scientific reports
2025

Incidence and health burden of 20 rare neurological diseases in South China from 2016 to 2022: a hospital-based observational study.

Orphanet journal of rare diseases
2025

Cerebello-Prefrontal Connectivity Underlying Cognitive Dysfunction in Spinocerebellar Ataxia Type 2.

Annals of clinical and translational neurology
2025

Spinocerebellar Ataxia Progression Measured with the Patient-Reported Outcome Measure of Ataxia.

Movement disorders : official journal of the Movement Disorder Society
2025

Cerebellar cognitive affective syndrome in patients with spinocerebellar ataxia type 10.

PloS one
2025

Progression of biological markers in spinocerebellar ataxia type 3: analysis of longitudinal data from the ESMI cohort.

medRxiv : the preprint server for health sciences
2025

Movement Disorders in Hereditary Cerebellar Ataxia.

Movement disorders clinical practice
2025

Oculodentodigital Dysplasia Presenting as Spastic Ataxic Syndrome in an Indian Patient.

Annals of Indian Academy of Neurology
2025

Heterozygous PNPT1 Variants Cause a Sensory Ataxic Neuropathy.

European journal of neurology
2025

Demystifying the Etiology of ILOCA in the Genomic Era: A Narrative Review.

Cerebellum (London, England)
2025

Longitudinal Changes in Patient- and Clinical-Reported Outcomes in Early Spinocerebellar Ataxia Types 1, 2, 3, and 6 from the IDEA Study.

Movement disorders clinical practice
2024

Hyperintense lesions of the middle cerebellar peduncle and beyond: a pictorial essay.

Radiologia brasileira
2025

Diagnosis of hereditary ataxias: a real-world single center experience.

Journal of neurology
2025

Content Validity of the Friedreich Ataxia Rating Scale in Patients with Spinocerebellar Ataxia.

Neurology and therapy
2025

Measurement Properties of the Friedreich Ataxia Rating Scale in Patients with Spinocerebellar Ataxia.

Neurology and therapy
2025

Trazodone, dibenzoylmethane and tauroursodeoxycholic acid do not prevent motor dysfunction and neurodegeneration in Marinesco-Sjögren syndrome mice.

PloS one
2025

STUB1-Associated Autosomal-Recessive Spinocerebellar Ataxia Type 16 (SCAR16) Presenting with Gordon-Holmes Syndrome Caused by Maternal Uniparental Isodisomy.

Movement disorders clinical practice
2025

The characterization of new de novo CACNA1G variants affecting the intracellular gate of Cav3.1 channel broadens the spectrum of neurodevelopmental phenotypes in SCA42ND.

Genetics in medicine : official journal of the American College of Medical Genetics
2025

De novo missense variants in the PP2A regulatory subunit PPP2R2B in a neurodevelopmental syndrome: potential links to mitochondrial dynamics and spinocerebellar ataxias.

Human molecular genetics
2024

Prevalence and implications of fragile X premutation screening in Thailand.

Scientific reports
2024

Morphological changes of cerebral gray matter in spinocerebellar ataxia type 3 using fractal dimension analysis.

Progress in brain research
2024

Current Overview of Spinocerebellar Ataxia Type 7 in Mexican Population: Challenges in Specialized Care for a Rare Disease.

International journal of molecular sciences
2025

Repeat expansion disorders.

Practical neurology
2024

DRED: A Comprehensive Database of Genes Related to Repeat Expansion Diseases.

Genomics, proteomics &amp; bioinformatics
2025

Ipsilateral Lower Limb Ataxia in a Patient with Lower Lateral Medullary Infarction: A Motion Analysis and the Possible Mechanism of Body Lateropulsion.

Internal medicine (Tokyo, Japan)
2024

CACNA1G Causes Dominantly Inherited Myoclonus-Ataxia with Intellectual Disability: A Case Report.

Cerebellum (London, England)
2024

Patterns of the Health and Economic Burden of 33 Rare Diseases in China: Nationwide Web-Based Study.

JMIR public health and surveillance
2024

Sil1-deficient fibroblasts generate an aberrant extracellular matrix leading to tendon disorganisation in Marinesco-Sjögren syndrome.

Journal of translational medicine
2024

The New Face of Dynamic Mutation-The CAA [CAG]n CAA CAG Motif as a Mutable Unit in the TBP Gene Causative for Spino-Cerebellar Ataxia Type 17.

International journal of molecular sciences
2024

Exome sequencing revealed variants in SGCA and SIL1 genes underlying limb girdle muscular dystrophy and Marinesco-Sjögren syndrome patients.

Molecular biology reports
2025

Dentatorubral-pallidoluysian atrophy: a rare cause of epilepsy, ataxia and chorea.

Practical neurology
2024

Significant improvement in paraneoplastic neurological syndromes without identifiable anti-neural antibodies in patients with breast cancer after breast surgery.

International cancer conference journal
2024

De novo and inherited monoallelic variants in TUBA4A cause ataxia and spasticity.

Brain : a journal of neurology
2024

Psychometric Validation of the Modified Functional Scale for the Assessment and Rating of Ataxia (f-SARA) in Patients With Spinocerebellar Ataxia.

Cerebellum (London, England)
2024

Randomized double-blind placebo-controlled trial of the effects of oral trehalose in spinocerebellar ataxia type 3: An interim analysis.

Parkinsonism &amp; related disorders
2024

Exploring the Pathogenicity of SETX I1942T Variant in Ataxia with Oculomotor Apraxia Type 2 Through Segregation Analysis.

Movement disorders clinical practice
2024

Video-Based Kinematic Analysis of Movement Quality in a Phase 3 Clinical Trial of Troriluzole in Adults with Spinocerebellar Ataxia: A Post Hoc Analysis.

Neurology and therapy
2024

Sleep and circadian rhythm dysfunctions in movement disorders beyond Parkinson's disease and atypical parkinsonisms.

Current opinion in neurology
2024

New Case of Spinocerebellar Ataxia, Autosomal Recessive 4, Due to VPS13D Variants.

International journal of molecular sciences
2024

An Update on the Adult-Onset Hereditary Cerebellar Ataxias: Novel Genetic Causes and New Diagnostic Approaches.

Cerebellum (London, England)
2024

A combination of chlorzoxazone and folic acid improves recognition memory, anxiety and depression in SCA3-84Q mice.

Human molecular genetics
2024

Content Validity of the Modified Functional Scale for the Assessment and Rating of Ataxia (f-SARA) Instrument in Spinocerebellar Ataxia.

Cerebellum (London, England)
2024

ITPR1: The missing gene in miosis-ataxia syndrome?

American journal of medical genetics. Part A
2024

Development and Validation of SCACOMS, a Composite Scale for Assessing Disease Progression and Treatment Effects in Spinocerebellar Ataxia.

Cerebellum (London, England)
2024

I123-FP-CIT (DaTSCAN) SPECT beyond the Most Common Causes of Parkinsonism: A Systematic Review.

Movement disorders clinical practice
2024

Two case reports of a novel missense mutation in the PNPLA6 gene in two siblings with chorioretinal dystrophy, hypogonadotropic hypogonadism, and cerebellar ataxia.

Molecular biology reports
2024

Efficacy and safety of N-acetyl-L-leucine in patients with ataxia telangiectasia: A randomized, double-blind, placebo-controlled, crossover clinical trial.

European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society
2024

Myoclonus and Dystonia as Recurrent Presenting Features in Patients with the SCA21-Associated TMEM240 p.Pro170Leu Variant.

Tremor and other hyperkinetic movements (New York, N.Y.)
2024

Spinocerebellar ataxia 27B (SCA27B), a frequent late-onset cerebellar ataxia.

Revue neurologique
2024

Molecular Imaging in CANVAS: A Contribution for Differential Diagnosis?

Movement disorders clinical practice
2024

GAA-FGF14 disease: defining its frequency, molecular basis, and 4-aminopyridine response in a large downbeat nystagmus cohort.

EBioMedicine
2024

Preimplantation genetic testing for monogenic disorders (PGT-M) offers an alternative strategy to prevent children from being born with hereditary neurological diseases or metabolic diseases dominated by nervous system phenotypes: a retrospective study.

Journal of assisted reproduction and genetics
2024

Novel genotype-phenotype correlations, differential cerebellar allele-specific methylation, and a common origin of the (ATTTC)n insertion in spinocerebellar ataxia type 37.

Human genetics
2024

Comprehensive Analysis of a Japanese Pedigree with Biallelic ACAGG Expansions in RFC1 Manifesting Motor Neuronopathy with Painful Muscle Cramps.

Cerebellum (London, England)
2024

Spinocerebellar ataxia 27B: A novel, frequent and potentially treatable ataxia.

Clinical and translational medicine
2024

Cognitive, Emotional, and Other Non-motor Symptoms of Spinocerebellar Ataxias.

Current neurology and neuroscience reports
2024

Cerebellar Neurostimulation for Boosting Social and Affective Functions: Implications for the Rehabilitation of Hereditary Ataxia Patients.

Cerebellum (London, England)
2024

The Cerebellar Cognitive Affective/Schmahmann Syndrome Scale in Spinocerebellar Ataxias.

Cerebellum (London, England)
2024

Cognitive-affective manifestations since premanifest phases of Spinocerebellar Ataxia Type 3/Machado-Joseph Disease.

Cortex; a journal devoted to the study of the nervous system and behavior
2023

Deep brain stimulation in Bassen-Kornzweig syndrome: Still effective after 22 years.

Brain &amp; spine
2023

A New Case of Autosomal-Dominant POLR3B-Related Disorder: Widening Genotypic and Phenotypic Spectrum.

Brain sciences
2023

A novel mutation in RNF216 gene in an Indian case with Gordon Holmes syndrome.

BMJ case reports
2024

Detailed Analysis of ITPR1 Missense Variants Guides Diagnostics and Therapeutic Design.

Movement disorders : official journal of the Movement Disorder Society
2023

Amantadine withdrawal in a patient with spinocerebellar ataxia.

BMJ case reports
2023

Generalized myokymia, or neuromyotonia, or both in dogs with or without spinocerebellar ataxia.

Journal of veterinary internal medicine
2024

Progressive ataxia, ophthalmoparesis, and hypogonadotropic hypogonadism in a family with a novel variant in the KIFBP gene.

Clinical genetics
2024

Memory decline, anxiety and depression in the mouse model of spinocerebellar ataxia type 3.

Human molecular genetics
2023

ITPR1-associated spinocerebellar ataxia with craniofacial features-additional evidence for germline mosaicism.

Cold Spring Harbor molecular case studies
2023

Parainfectious Brown-Séquard syndrome associated with COVID-19.

BMJ case reports
2024

A Case of Coexistent Spinocerebellar Ataxia Type 2 and Primary Progressive Multiple Sclerosis-Coincidental or Associated?

Cerebellum (London, England)
2023

A Case Report of Cardiofaciocutaneous Syndrome with MAP2K1 Pathogenic Variant.

Pharmacogenomics and personalized medicine
2023

Two unrelated fetuses with ITPR1 missense variants and fetal hydrops.

Prenatal diagnosis
2024

Assessment and tailored physical rehabilitation approaches in persons with cerebellar impairments targeting mobility and walking according to the International Classification of Functioning: a systematic review of case-reports and case-series.

Disability and rehabilitation
2023

Case report: A Chinese patient with spinocerebellar ataxia finally confirmed as Gerstmann-Sträussler-Scheinker syndrome with P102L mutation.

Frontiers in neurology
2023

A boy with a progressive neurologic decline harboring two coexisting mutations in KMT2D and VPS13D.

Brain &amp; development
2023

PPAR-gamma agonist pioglitazone recovers mitochondrial quality control in fibroblasts from PITRM1-deficient patients.

Frontiers in pharmacology
2023

Inactivating TDP2 missense mutation in siblings with congenital abnormalities reminiscent of fanconi anemia.

Human genetics
2023

A chlorzoxazone-folic acid combination improves cognitive affective decline in SCA2-58Q mice.

Scientific reports
2024

Computational identification and molecular dynamics simulation of potential circularRNA derived peptide from gene expression profile of Rheumatoid arthritis, Alzheimer's disease, and Atrial fibrillation.

Journal of biomolecular structure &amp; dynamics
2023

Homozygous deep intronic variant in SNX14 cause autosomal recessive Spinocerebellar ataxia 20: a case report.

Frontiers in genetics
2023

Disability in cerebellar ataxia syndromes is linked to cortical degeneration.

Journal of neurology
2023

Stertor, vestibular ataxia, Horner's syndrome and oral pain in a 6-year-old male intact Weimaraner.

Journal of the American Veterinary Medical Association
2023

Epilepsy as the symptom of a spinocerebellar ataxia 13 in a patient presenting with a mutation in the KCNC3 gene.

BMC neurology
2023

Phenotypic and genetic aspects of hereditary ataxia in dogs.

Journal of veterinary internal medicine
2023

EGR2 gene-linked hereditary neuropathies present with a bimodal age distribution at symptoms onset.

Journal of the peripheral nervous system : JPNS
2023

Clinical availability of eye movement during reading.

Neuroscience research
2023

Reactive Bergmann glia play a central role in spinocerebellar ataxia inflammation via the JNK pathway.

Journal of neuroinflammation
2023

The Therapeutic Potential of Non-Invasive and Invasive Cerebellar Stimulation Techniques in Hereditary Ataxias.

Cells
2023

The Y831C Mutation of the POLG Gene in Dementia.

Biomedicines
2023

GAA-FGF14 ataxia (SCA27B): phenotypic profile, natural history progression and 4-aminopyridine treatment response.

Brain : a journal of neurology
2023

Expansion of clinical and variant spectrum of EEF2-related neurodevelopmental disorder: Report of two additional cases.

American journal of medical genetics. Part A
2023

A novel de novo variant in CASK causes a severe neurodevelopmental disorder that masks the phenotype of a novel de novo variant in EEF2.

Journal of human genetics
2023

[Non-cerebellar ataxias: posterior column-like ataxia and cerebellar-like ataxia].

Rinsho shinkeigaku = Clinical neurology
2023

Synthesis and cloning of long repeat sequences using single-stranded circular DNA.

Frontiers in bioengineering and biotechnology
2023

[Multiple system atrophy].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova
2023

The Homogeneous Azorean Machado-Joseph Disease Cohort: Characterization and Contributions to Advances in Research.

Biomedicines
2023

Case report: Variants in the ERCC4 gene as a rare cause of cerebellar ataxia with chorea.

Frontiers in genetics
2023

Between Order and Chaos: Understanding the Mechanism and Pathology of RAN Translation.

Biological &amp; pharmaceutical bulletin
2023

Electrophysiological and neuropsychological assessment of cognition in spinocerebellar ataxia type 1 patients: a pilot study.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2023

Spinocerebellar ataxia type 31: A clinical and radiological literature review.

Journal of the neurological sciences
2023

Screening for the FMR1 premutation in Greek patients with late-onset movement disorders.

Parkinsonism &amp; related disorders
2023

A de novo hexokinase 1 (HK1) variant presenting as Boucher-Neuhäuser syndrome.

American journal of medical genetics. Part A
2023

Coexistence of spinocerebellar ataxia autosomal recessive type 21 and Ehlers-Danlos syndrome spondylodysplastic type 3 in a patient.

Clinical dysmorphology
2022

Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay due to Novel Mutations in the SACS Gene.

Journal of investigative medicine high impact case reports
2022

Episodic ataxias in children and adolescents: Clinical findings and suggested diagnostic criteria.

Frontiers in neurology
2023

The frequency of non-motor symptoms in SCA3 and their association with disease severity and lifestyle factors.

Journal of neurology
2022

Accidental Falls in Patients with Hyperkinetic Movement Disorders: A Systematic Review.

Tremor and other hyperkinetic movements (New York, N.Y.)
2022

Isolated axial lateropulsion caused by an acute lateral medullary infarction involving the dorsal spinocerebellar tract: A case report.

Brain circulation
2022

Pharmacotherapy for the management of the symptoms of Machado-Joseph Disease.

Expert opinion on pharmacotherapy
2022

Mutation analysis of the TATA box-binding protein (TBP) gene in Russian patients with spinocerebellar ataxia and Huntington disease-like phenotype.

Clinical neurology and neurosurgery
2022

Moyamoya associated with Turner syndrome in a patient with type 2 spinocerebellar ataxia-Occam's razor or Hickam's dictum: a case report.

BMC neurology
2023

The inherited cerebellar ataxias: an update.

Journal of neurology
2022

Pearls & Oy-sters: Deep Phenotyping of Abnormal Eye Movements Advances the Detection of Gerstmann-Sträussler-Scheinker Syndrome.

Neurology
2022

Pearls & Oy-sters: SCA21 Due to TMEM240 Variation Presenting as Myoclonus Dystonia Syndrome.

Neurology
2022

CIC missense variants contribute to susceptibility for spina bifida.

Human mutation
2022

The Emerging Key Role of the mGluR1-PKCγ Signaling Pathway in the Pathogenesis of Spinocerebellar Ataxias: A Neurodevelopmental Viewpoint.

International journal of molecular sciences
2023

The S-Factor, a New Measure of Disease Severity in Spinocerebellar Ataxia: Findings and Implications.

Cerebellum (London, England)
2022

A PNPLA8 frameshift variant in Australian shepherd dogs with hereditary ataxia.

Animal genetics
2022

Potpourri of retinopathies in rare eye disease - A case series.

Indian journal of ophthalmology
2022

Superior Cerebellar Atrophy: An Imaging Clue to Diagnose ITPR1-Related Disorders.

International journal of molecular sciences
2022

On Spinocerebellar Ataxia 21 as a Mimicker of Cerebral Palsy.

Neurology. Genetics
2022

Cerebellar transcranial direct current stimulation modulates timing but not acquisition of conditioned eyeblink responses in SCA3 patients.

Brain stimulation
2022

Autosomal recessive spinocerebellar ataxia SCAR8/ARCA1: first families detected in Spain.

Neurologia
2022

Genetic and Epigenetic Interplay Define Disease Onset and Severity in Repeat Diseases.

Frontiers in aging neuroscience
2022

Sleep disorders among Aboriginal Australians with Machado-Joseph Disease: Quantitative results from a multiple methods study to assess the experience of people living with the disease and their caregivers.

Neurobiology of sleep and circadian rhythms
2022

Cerebellar Transcranial Direct Current Stimulation in Spinocerebellar Ataxia Type 3: a Randomized, Double-Blind, Sham-Controlled Trial.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2022

A Severe Dementia Syndrome Caused by Intron Retention and Cryptic Splice Site Activation in STUB1 and Exacerbated by TBP Repeat Expansions.

Frontiers in molecular neuroscience
2022

Cognitive Dysfunction in Repeat Expansion Diseases: A Review.

Frontiers in aging neuroscience
2022

Spinocerebellar ataxia in a cohort of patients from Rio de Janeiro.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2022

Ramsay Hunt syndrome: New impressions in the era of molecular genetics.

Parkinsonism &amp; related disorders
2022

Clinical and Genetic Characterization of Brazilian Patients with Ataxia and Oculomotor Apraxia.

Movement disorders : official journal of the Movement Disorder Society
2022

The CCAS-scale in hereditary ataxias: helpful on the group level, particularly in SCA3, but limited in individual patients.

Journal of neurology
2022

Molecular Characterization of Portuguese Patients with Hereditary Cerebellar Ataxia.

Cells
2022

The Clinical Concept of LTDpathy: Is Dysregulated LTD Responsible for Prodromal Cerebellar Symptoms?

Brain sciences
2022

A study on non-invasive prenatal screening for the detection of aneuploidy.

Ginekologia polska
2022

Effectiveness of functional trunk training on trunk control and upper limb functions in patients with autosomal recessive hereditary ataxia.

NeuroRehabilitation
2023

Translation, Cross-Cultural Adaptation, and Validation to Brazilian Portuguese of the Cerebellar Cognitive Affective/Schmahmann Syndrome Scale.

Cerebellum (London, England)
2022

Case Report: Late-Onset Autosomal Recessive Cerebellar Ataxia Associated With SYNE1 Mutation in a Chinese Family.

Frontiers in genetics
2022

Epilepsia Partialis Continua a Clinical Feature of a Missense Variant in the ADCK3 Gene and Poor Response to Therapy.

Journal of molecular neuroscience : MN
2022

Spinocerebellar ataxia type 3: response to levodopa infusion in two cases.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2022

Retrocollis as the cardinal feature in a de novo ITRP1 variant.

Brain &amp; development
2022

Early-onset Parkinson's disease with atypical molecular imaging abnormalities in a patient carrying the de novo PRKCG mutation.

Parkinsonism &amp; related disorders
2023

Thymidine Kinase 2 and Mitochondrial Protein COX I in the Cerebellum of Patients with Spinocerebellar Ataxia Type 31 Caused by Penta-nucleotide Repeats (TTCCA)n.

Cerebellum (London, England)
2021

Multifaceted and Age-Dependent Phenotypes Associated With Biallelic PNPLA6 Gene Variants: Eight Novel Cases and Review of the Literature.

Frontiers in neurology

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Doenças relacionadas

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Referências e fontes

Bases de dados externas citadas neste artigo

Publicações científicas

Artigos indexados no PubMed ligados a esta doença no grafo RarasNet — título, periódico e PMID direto da fonte, sem intermediação de IA.

  1. T2-FLAIR hyperintensities in the inferior cerebellar peduncles and their association with clinical symptoms, molecular and MRI markers in male FMR1 premutation carriers.
    Frontiers in molecular neuroscience· 2026· PMID 41777701mais citado
  2. Incorporating Patient Perspectives into a Composite Score for Measuring Disease Progression in Spinocerebellar Ataxia (SCA).
    Neurology and therapy· 2026· PMID 41706362mais citado
  3. Pearls &amp; Oy-sters: SCA27B as an Elusive Genetic Cause of Episodic Neurologic Symptoms in Later Adulthood.
    Neurology· 2026· PMID 41698164mais citado
  4. Functional and Epigenomic Consequences of DNMT1 Variants in Inherited Neurological Disorders.
    International journal of molecular sciences· 2026· PMID 41683660mais citado
  5. Patient-reported Vision Quality-of-life in Parkinsonian Syndromes and Ataxias and Association with Clinical Oculomotor Findings.
    medRxiv : the preprint server for health sciences· 2026· PMID 41674594mais citado
  6. Systematic literature review of the somatic comorbidities experienced by adults with phenylketonuria.
    Orphanet J Rare Dis· 2024· PMID 39135125recente
  7. Advancing Transthyretin Amyloidosis Drug Development in an Evolving Treatment Landscape: Amyloidosis Forum Meeting Proceedings.
    Adv Ther· 2024· PMID 38833142recente
  8. Targeted-Capture Next-Generation Sequencing in Diagnosis Approach of Pediatric Cholestasis.
    Diagnostics (Basel)· 2022· PMID 35626323recente
  9. Genotype-phenotype correlation and natural history analyses in a Chinese cohort with pelizaeus-merzbacher disease.
    Orphanet J Rare Dis· 2022· PMID 35346287recente
  10. Cost-effectiveness analysis of using the TBX6-associated congenital scoliosis risk score (TACScore) in genetic diagnosis of congenital scoliosis.
    Orphanet J Rare Dis· 2020· PMID 32933559recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:1185(Orphanet)
  2. OMIM OMIM:271270(OMIM)
  3. MONDO:0010062(MONDO)
  4. GARD:4958(GARD (NIH))
  5. Busca completa no PubMed(PubMed)
  6. Q55782323(Wikidata)

Dados compilados pelo RarasNet a partir de fontes abertas (Orphanet, OMIM, MONDO, PubMed/EuropePMC, ClinicalTrials.gov, DATASUS, PCDT/MS). Este conteúdo é informativo e não substitui avaliação médica.

Conteúdo mantido por Agente Raras · Médicos e pesquisadores podem colaborar

Síndrome de ataxia espinocerebelosa-dismorfia
Compêndio · Raras BR

Síndrome de ataxia espinocerebelosa-dismorfia

ORPHA:1185 · MONDO:0010062
Prevalência
<1 / 1 000 000
Casos
3 casos conhecidos
Herança
Autosomal recessive
CID-10
G11.8 · Outras ataxias hereditárias
Início
Infancy
Prevalência
0.0 (Worldwide)
MedGen
UMLS
C0796166
Repurposing
1 candidato
taltirelinthyrotropin releasing hormone receptor agonist
Wikidata
Evidência
🥇 Rev. sistemática
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