Raras
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Síndrome de ataxia cerebelar-epilepsia-perturbação do desenvolvimento intelectual autossômica recessiva
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Introdução

O que você precisa saber de cara

📋

Ataxia cerebelar autossômica recessiva descreve um grupo heterogêneo de doenças genéticas raras com um padrão de herança autossômica recessiva e um fenótipo clínico que envolve ataxia cerebelar.

Pesquisas ativas
1 ensaio
1 total registrados no ClinicalTrials.gov
🏥
SUS: Cobertura parcialScore: 50%
PCDT disponívelCentros em: SP, PR, RS, ES, RJ +5
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Sinais e sintomas

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

Partes do corpo afetadas

🧠
Neurológico
15 sintomas
👁️
Olhos
4 sintomas
🦴
Ossos e articulações
4 sintomas
❤️
Coração
1 sintomas
🩸
Sangue
1 sintomas
📏
Crescimento
1 sintomas

+ 13 sintomas em outras categorias

Características mais comuns

Atraso global do desenvolvimento
Ataxia
Nistagmo
Marcha instável
Hiporreflexia de membros superiores
Deficiência intelectual
41sintomas
Sem dados (41)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 41 características clínicas mais associadas, ordenadas por frequência.

Atraso global do desenvolvimentoGlobal developmental delay
Ataxia
NistagmoNystagmus
Marcha instávelUnsteady gait
Hiporreflexia de membros superioresHyporeflexia of upper limbs

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2025
Últimos 10 anos117publicações
Pico202518 papers
Linha do tempo
2025Hoje · 2026🧪 2010Primeiro ensaio clínico
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

Genes associados

3 genes identificados com associação a esta condição.

Autosomal recessive
TDP2Tyrosyl-DNA phosphodiesterase 2Disease-causing germline mutation(s) inTolerante
FUNÇÃO

DNA repair enzyme that can remove a variety of covalent adducts from DNA through hydrolysis of a 5'-phosphodiester bond, giving rise to DNA with a free 5' phosphate. Catalyzes the hydrolysis of dead-end complexes between DNA and the topoisomerase 2 (TOP2) active site tyrosine residue. The 5'-tyrosyl DNA phosphodiesterase activity can enable the repair of TOP2-induced DNA double-strand breaks/DSBs without the need for nuclease activity, creating a 'clean' DSB with 5'-phosphate termini that are re

LOCALIZAÇÃO

NucleusNucleus, PML bodyNucleus, nucleolusCytoplasm

VIAS BIOLÓGICAS (1)
Nonhomologous End-Joining (NHEJ)
MECANISMO DE DOENÇA

Spinocerebellar ataxia, autosomal recessive, 23

A form of spinocerebellar ataxia, a clinically and genetically heterogeneous group of cerebellar disorders due to degeneration of the cerebellum with variable involvement of the brainstem and spinal cord. SCAR23 patients manifest epilepsy, intellectual disability, and gait ataxia.

EXPRESSÃO TECIDUAL(Ubíquo)
Intestino delgado
57.6 TPM
Cérebro - Hemisfério cerebelar
47.5 TPM
Cólon transverso
46.9 TPM
Próstata
44.4 TPM
Linfócitos
41.8 TPM
OUTRAS DOENÇAS (1)
spinocerebellar ataxia, autosomal recessive 23
HGNC:17768UniProt:O95551
WWOXWW domain-containing oxidoreductaseDisease-causing germline mutation(s) inTolerante
FUNÇÃO

Putative oxidoreductase. Acts as a tumor suppressor and plays a role in apoptosis. Required for normal bone development (By similarity). May function synergistically with p53/TP53 to control genotoxic stress-induced cell death. Plays a role in TGFB1 signaling and TGFB1-mediated cell death. May also play a role in tumor necrosis factor (TNF)-mediated cell death. Inhibits Wnt signaling, probably by sequestering DVL2 in the cytoplasm

LOCALIZAÇÃO

CytoplasmNucleusMitochondrionGolgi apparatusLysosome

VIAS BIOLÓGICAS (3)
Nuclear signaling by ERBB4Activation of the TFAP2 (AP-2) family of transcription factorsNegative regulation of activity of TFAP2 (AP-2) family transcription factors
EXPRESSÃO TECIDUAL(Ubíquo)
Tireoide
13.8 TPM
Cérebro - Hemisfério cerebelar
12.1 TPM
Cerebelo
11.2 TPM
Brain Spinal cord cervical c-1
10.5 TPM
Nervo tibial
8.2 TPM
OUTRAS DOENÇAS (5)
autosomal recessive spinocerebellar ataxia 12esophageal cancerdevelopmental and epileptic encephalopathy, 28esophageal squamous cell carcinoma
HGNC:12799UniProt:Q9NZC7
RUBCNRun domain Beclin-1-interacting and cysteine-rich domain-containing proteinDisease-causing germline mutation(s) inTolerante
FUNÇÃO

Inhibits PIK3C3 activity; under basal conditions negatively regulates PI3K complex II (PI3KC3-C2) function in autophagy. Negatively regulates endosome maturation and degradative endocytic trafficking and impairs autophagosome maturation process. Can sequester UVRAG from association with a class C Vps complex (possibly the HOPS complex) and negatively regulates Rab7 activation (PubMed:20974968, PubMed:21062745) Involved in regulation of pathogen-specific host defense of activated macrophages. Fol

LOCALIZAÇÃO

Late endosomeLysosomeEarly endosome

MECANISMO DE DOENÇA

Spinocerebellar ataxia, autosomal recessive, 15

A form of spinocerebellar ataxia, a clinically and genetically heterogeneous group of cerebellar disorders. Patients show progressive incoordination of gait and often poor coordination of hands, speech and eye movements, due to degeneration of the cerebellum with variable involvement of the brainstem and spinal cord. SCAR15 patients manifest cerebellar ataxia in early childhood and delayed motor development with delayed walking. Additional features include dysarthria, upper limb involvement, abnormal eye movements, and hyporeflexia.

EXPRESSÃO TECIDUAL(Ubíquo)
Linfócitos
38.4 TPM
Cérebro - Hemisfério cerebelar
34.0 TPM
Cerebelo
30.9 TPM
Testículo
27.1 TPM
Baço
26.4 TPM
OUTRAS DOENÇAS (1)
autosomal recessive spinocerebellar ataxia 15
HGNC:28991UniProt:Q92622

Medicamentos aprovados (FDA)

1 medicamento encontrado nos registros da FDA americana.

💊 Penicillamine (PENICILLAMINE)
Ver no DailyMed/FDA

Variantes genéticas (ClinVar)

400 variantes patogênicas registradas no ClinVar.

🧬 RUBCN: GRCh37/hg19 3q22.1-29(chr3:132561657-197851986)x3 ()
🧬 RUBCN: NM_014687.4(RUBCN):c.1473+2T>G ()
🧬 RUBCN: GRCh37/hg19 3q29(chr3:194814799-197817520)x3 ()
🧬 RUBCN: Single allele ()
🧬 RUBCN: NM_014687.4(RUBCN):c.607_608del (p.Lys203fs) ()
Ver todas no ClinVar

Diagnóstico

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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.
·Pré-clínico1
Medicamentos catalogadosEnsaios clínicos· 0 medicamentos · 1 ensaio
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Onde tratar no SUS

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

🇧🇷 Atendimento SUS — Síndrome de ataxia cerebelar-epilepsia-perturbação do desenvolvimento intelectual autossômica recessiva

Centros de Referência SUS

13 centros habilitados pelo SUS para Síndrome de ataxia cerebelar-epilepsia-perturbação do desenvolvimento intelectual autossômica recessiva

Centros para Síndrome de ataxia cerebelar-epilepsia-perturbação do desenvolvimento intelectual autossômica recessiva

Detalhes dos centros

Hospital Infantil Albert Sabin

R. Tertuliano Sales, 544 - Vila União, Fortaleza - CE, 60410-794 · CNES 2407876

Serviço de Referência

Rota
Anomalias CongênitasDeficiência Intelectual

Hospital de Apoio de Brasília (HAB)

AENW 3 Lote A Setor Noroeste - Plano Piloto, Brasília - DF, 70684-831 · CNES 0010456

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital Estadual Infantil e Maternidade Alzir Bernardino Alves (HIABA)

Av. Min. Salgado Filho, 918 - Soteco, Vila Velha - ES, 29106-010 · CNES 6631207

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital das Clínicas da UFMG

Av. Prof. Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte - MG, 30130-100 · CNES 2280167

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital Universitário João de Barros Barreto

R. dos Mundurucus, 4487 - Guamá, Belém - PA, 66073-000 · CNES 2337878

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Instituto de Medicina Integral Prof. Fernando Figueira (IMIP)

R. dos Coelhos, 300 - Boa Vista, Recife - PE, 50070-902 · CNES 0000647

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital Pequeno Príncipe

R. Des. Motta, 1070 - Água Verde, Curitiba - PR, 80250-060 · CNES 3143805

Serviço de Referência

Rota
Anomalias CongênitasDeficiência Intelectual

Hospital de Clínicas da UFPR

R. Gen. Carneiro, 181 - Alto da Glória, Curitiba - PR, 80060-900 · CNES 2364980

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira (IFF/Fiocruz)

Av. Rui Barbosa, 716 - Flamengo, Rio de Janeiro - RJ, 22250-020 · CNES 2269988

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital de Clínicas de Porto Alegre (HCPA)

Rua Ramiro Barcelos, 2350 Bloco A - Av. Protásio Alves, 211 - Bloco B e C - Santa Cecília, Porto Alegre - RS, 90035-903 · CNES 2237601

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital das Clínicas da FMUSP

R. Dr. Ovídio Pires de Campos, 225 - Cerqueira César, São Paulo - SP, 05403-010 · CNES 2077485

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital de Clínicas da UNICAMP

R. Vital Brasil, 251 - Cidade Universitária, Campinas - SP, 13083-888 · CNES 2748223

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital de Clínicas de Ribeirão Preto (HCRP-USP)

R. Ten. Catão Roxo, 3900 - Vila Monte Alegre, Ribeirão Preto - SP, 14015-010 · CNES 2082187

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual
Sobre os centros SUS: Estes centros são habilitados pelo Ministério da Saúde como Serviços de Referência em Doenças Raras ou Serviços de Atenção Especializada. O atendimento é pelo SUS, com encaminhamento da rede de atenção básica.

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

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Publicações mais relevantes

Timeline de publicações
0 papers (10 anos)
#1

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 Neurophysiology2025 Dec 29

Spinocerebellar ataxia, autosomal recessive type 23 (SCAR23) is an ultra-rare inherited disorder caused by biallelic Loss-of-Function (LoF) variants in TDP2, a nuclear enzyme involved in DNA double-strand breaks repair. To date, only 12 cases with homozygous variants and complex neurological phenotypes have been reported. We describe a 20-year-old male presenting with cerebellar ataxia, drug-resistant epilepsy, mild intellectual disability, and recurring craniofacial traits observed in SCAR23. Additional findings included polycythemia and a pituitary hamartoma. Clinical exome sequencing (CES) identified two novel TDP2 nonsense variants. In silico and structural analyses indicated that both variants affect highly conserved residues in the catalytic domain. Longitudinal video-oculography confirmed downbeat nystagmus (DBN), while static stabilometry captured subtle postural changes over 12 months not detected by routine clinical examination, highlighting the utility of quantitative digital assessments. This case expands the genotypic spectrum of SCAR23 and highlights recurring facial traits that may aid recognition. The coexisting SHOX deletion (i.e., Leri-Weill syndrome) was considered unrelated to the neurological phenotype. Digital assessments provided objective measures of motor function over time. Our findings broaden the clinical and molecular characterization of SCAR23 and illustrate the potential of digital biomarkers for longitudinal monitoring. Despite the lack of functional validation and the inherent limitations of a single-case report, these observations provide valuable insights for future research in this ultra-rare disorder.

#2

Deciphering Spastic Ataxia: Clinical and Genetic Profiles.

Neurology. Genetics2025 Dec

Hereditary cerebellar ataxia (HCA) and hereditary spastic paraplegia (HSP) are rare neurologic disorders that often represent opposite ends of a shared clinical spectrum. Spastic ataxia, defined by the co-occurrence of cerebellar syndrome and overt spasticity, remains comparatively underexplored and is associated with relatively few genetic causes. The aim of this study was to characterize the clinical and genetic features of spastic ataxia in a large HCA cohort and compare them with those of nonspastic HCA. A prospective HCA cohort was initiated in 2017, incorporating annual assessments following a structured and standardized protocol. Spastic ataxia was defined as ataxia occurring in conjunction with spasticity grade ≥2 on the Modified Ashworth Scale. Patients meeting this criterion were identified; their clinical and genetic data were analyzed and compared with those of patients with nonspastic forms of HCA. The Movement Disorder Society's nomenclature for genetic disorders was adopted, using dual-prefix notation for combined phenotypes (e.g., HSP/ATX for spastic ataxia), except for entities such as MJD/SCA3 or ARSACS, which are more readily recognized by their original designations. Of 249 patients assessed (164 families), 56 (22.5%; from 46 families) exhibited a spastic ataxia phenotype. Compared with nonspastic HCA, these patients had earlier onset and longer disease duration. Spastic ataxia was significantly associated with autosomal recessive inheritance and conventional (nonrepeat expansion) variants. Thirty-eight probands (80.8%) had a definite genetic diagnosis, involving 22 causal genes. The most frequent diagnoses were ARSACS (17.4%), ATX-SYNE1 (6.5%), ATX-ANO10, HSP/ATX-KIF1C, HSP/ATX-PGN, HSP-ZFYVE26, MxMD-ATP13A2, and ATX/HSP-KCNA2 (4.3% each). A noncerebellar presentation was observed in 30 patients with spastic ataxia (53.6%) while 26 (46.6%) had cerebellar onset. After adjustment for disease duration, patients with spastic ataxia had significantly higher baseline scores on the Scale for the Assessment and Rating of Ataxia, reflecting a greater disease burden. In addition, falls were more frequent in this group. Spastic ataxia represented a clinically and genetically distinct subgroup within HCA, marked by recessive inheritance, large genetic heterogeneity, and more severe motor impairment. Greater awareness of its heterogeneous presentations and progressive disability over time is crucial for timely diagnosis, genetic counseling, and development of tailored management strategies for these patients.

#3

RAB23 loss-of-function mutation causes context-dependent ciliopathy in Carpenter syndrome.

PLoS genetics2025 Aug

The primary cilium is a signal transduction organelle whose dysfunction clinically causes ciliopathies in humans. RAB23 is a small GTPase known to regulate the Hedgehog signalling pathway and ciliary trafficking. Mutations of RAB23 in humans lead to Carpenter syndrome (CS), an autosomal recessive disorder clinically characterized by craniosynostosis, polysyndactyly, skeletal defects, obesity, and intellectual disability. Although the clinical features of CS bear some resemblance to those of ciliopathies, the exact relationship between the pathological manifestations of CS and the ciliary function of RAB23 remains ambiguous. Besides, the in vivo ciliary functions of RAB23 remain poorly characterised. Here, we demonstrate in vivo and in vitro Rab23 loss-of-function mutants modelling CS, including Rab23 conditional knockout (CKO) mouse mutants, CS patient-derived induced pluripotent stem cells (iPSCs), and zebrafish morphants. The Rab23-CKO mutants exhibit multiple developmental and phenotypical traits recapitulating the clinical features of human ciliopathies and CS, indicating a causal link between the loss of Rab23 and ciliopathy. In line with the ciliopathy-like phenotypes, all three different vertebrate mutant models consistently show a perturbation of primary cilia formation, intriguingly, in a context-dependent manner. Rab23-CKO mutants reveal cell-type specific ciliary abnormalities in chondrocytes, mouse embryonic fibroblasts, neural progenitor cells and neocortical neurons, but not in epithelial cells, cerebellar granule cells and hippocampus neurons. A profound reduction in ciliation frequency was observed specifically in neurons differentiated from CS patient iPSCs, whereas the patients' fibroblasts, iPSCs and neural progenitor cells maintained normal ciliation percentages but shortened cilia length. Furthermore, Rab23-KO neural progenitor cells show perturbed ciliation and desensitized to primary cilium-dependent activation of the Hedgehog signaling pathway. Collectively, these findings indicate that the absence of RAB23 causes dysfunctional primary cilia in a cell-type distinctive manner, which underlies the pathological manifestations of CS. Our findings present the first in vivo evidence validating the unique context-specific function of RAB23 in the primary cilium. Through the use of patient-derived iPSCs differentiated cells, we present direct evidence of primary cilia anomalies in CS, thereby confirming CS as a ciliopathy disorder.

#4

Natural history of SPTBN4-related neurodevelopmental disorder with hypotonia, neuropathy, and deafness.

Orphanet journal of rare diseases2025 Aug 08

Pathogenic variants in SPTBN4 have been linked to autosomal recessive "neurodevelopmental disorder with hypotonia, neuropathy, and deafness" (MIM# 617519) known as NEDHND. The disorder is highlighted with neuropathy, muscle weakness, and infrequent appearance of seizures in the affected individuals. This study aims to investigate the natural history of the disease, present genetic and clinical appearance of the syndrome in a highly consanguineous population, Saudi Arabia, and finally provide an overview of the reported cases, their clinical features, and disease-causing variants. The study started with a search through neurology clinics and local databases and utilized genetic testing records after diagnosing a patient with NEDHND at our hospital (King Faisal Specialist Hospital and Research Centre, KFSHRC). Based on the search we have identified additional patients (in total, n = 10) with the disease and performed genetic testing using whole exome sequencing and confirmatory Sanger sequencing. We performed RT-PCR on RNA extracted from lymphoblastoid cell line from a patient who found to have an aberrant splicing variant. Finally, we comprehensively reviewed current literature and available data related to the disease. We present natural history of SPTBN4-associated neurodevelopmental disorder with hypotonia, neuropathy, and deafness in addition to four Saudi families with ten affected individuals who share clinical features of NEDHND. We report three known mutations and one novel nonsense variant, highlight atypical clinical features related to cerebellar involvement, confirm the pathogenicity of a splicing variant by RT-PCR, and review the findings of previously reported patients. Our study defines the clinical phenotype of a cohort of NEDHND in detail including the evolution of patients' clinical features, compares them to previously reported cases, and utilizes the existing data on the disease to direct development of a better prevention plan by means of genetic and preimplantation counseling. Our study may help and enable future clinical trials focusing on NEDHND in our country.

#5

Natural history of patients with autosomal dominant WFS1 pathogenic variants associated with sensorineural hearing loss and optic atrophy.

medRxiv : the preprint server for health sciences2025 Feb 25

Autosomal dominant pathogenic variants in the WFS1 gene can cause a broad spectrum of WFS1-related disorders. These disorders present with a range of phenotypic manifestations, including isolated low-frequency sensorineural hearing loss, optic nerve atrophy accompanied by low- to mid-frequency sensorineural hearing loss, isolated diabetes mellitus, and early-onset cataracts. In general, WFS1-related disorders represent a milder spectrum of conditions linked to pathogenic WFS1 variants, except for Hattersley-Urano syndrome, which is characterized by early-onset diabetes mellitus, optic nerve atrophy, cataracts, hypotonia, intellectual disability, and developmental delay. By contrast, autosomal recessive WFS1 variants result in Wolfram Syndrome type 1, a rare neurodegenerative disorder characterized by early-onset diabetes mellitus, optic nerve atrophy, arginine vasopressin deficiency, hearing loss, and cerebellar and brainstem atrophy. Although WFS1-related disorders have been increasingly recognized, additional data are needed to understand their clinical progression and long-term outcomes. Our study aims to expand knowledge on the severity and progression of WFS1-related disorders by reviewing clinical data from patients with autosomal dominant pathogenic WFS1 variants. We obtained clinical data from the Washington University International Registry and Clinical Study for Wolfram Syndrome and related disorders and the Endoplasmic Reticulum Disease Patient Registry and Biorepository. We included participants with autosomal dominant WFS1 pathogenic variants who were diagnosed with optic nerve atrophy and sensorineural hearing loss. Eleven participants with autosomal dominant WFS1 variants meeting these criteria were identified. The 11 cases included five distinct autosomal dominant WFS1 variants: c.923C>G (p.Ser308Cys), c.2051C>T (p.Ala684Val), c.2389G>T (p.Asp797Tyr), c.2456A>C (p.Gln819Pro), and c.2590G>A (p.Glu864Lys). Among these, the p.Gln819Pro variant has not been previously reported in the literature. The median age of optic atrophy diagnosis was 10 years (quartiles: 6.0 and 19.0 years). Visual acuity did not significantly differ between the left (OS) and right (OD) eyes (p = 0.8901). The least square best-corrected visual acuity (BCVA) mean for the right eye was 0.2114 ± 0.01903 and for the left eye, 0.2153 ± 0.01903. Age was not significantly related to best eye BCVA (p = 0.9196), with an estimated change of -0.0002 (95% CI [-0.003, 0.003]) per year. Patient age was also not correlated with binocular BCVA (p = 0.5994), with an estimated change of 0.00075 (95% CI [-0.0021, 0.0036]) per year. Mean retinal nerve fiber layer (RNFL) thickness was not significantly related to age (p = 0.1604), with an estimated annual change of 0.1486 (95% CI [-0.659, 0.363]). However, removing an influential outlier resulted in a significant relationship between RNFL thickness and age (p = 0.0160), with an estimated change of 0.2114 (95% CI [0.045, 0.377]) per year. Hearing loss diagnoses occurred at a median age of 2.0 years (quartiles: 1.5 and 2.0 years). All participants used hearing aids (11/11); six (6/11) had cochlear implants, while three (3/11) used external hearing aids. The median time between hearing loss diagnosis and hearing aid use was 4.0 years (quartiles: 2.5 and 8.0 years). This study contributes to the growing understanding of WFS1-related disorders caused by autosomal dominant WFS1 variants. In particular, it highlights two clinical phenotypes of a novel WFS1 variant and provides valuable insights into the progression of optic nerve atrophy and hearing loss management.

Publicações recentes

Ver todas no PubMed

📚 EuropePMCmostrando 117

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

Deciphering Spastic Ataxia: Clinical and Genetic Profiles.

Neurology. Genetics
2025

VPS13D-Related Disorders: Description of New Variant and Phenotypic Spectrum Based on Age of Onset.

Cerebellum (London, England)
2025

WDR81 Mutation in Two Siblings: A Case Report and Review of Literature.

Molecular syndromology
2025

Identification of two novel pathogenic mutations in the SKOR2 gene linked to cerebellar hypoplasia and a broad spectrum of neurodevelopmental delay in two Iranian families.

Journal of human genetics
2025

RAB23 loss-of-function mutation causes context-dependent ciliopathy in Carpenter syndrome.

PLoS genetics
2025

Natural history of SPTBN4-related neurodevelopmental disorder with hypotonia, neuropathy, and deafness.

Orphanet journal of rare diseases
2025

Prenatal and postnatal findings in cerebellofaciodental syndrome: a rare genetic disorder.

Clinical dysmorphology
2025

Functional Assessment of the Subjects with Unertan Syndrome: 10 Years Follow-Up Study.

Cerebellum (London, England)
2025

French guidelines for the diagnosis and management of pure hereditary spastic paraplegia.

Revue neurologique
2025

A case series of joubert syndrome evaluated with whole exome sequencing and the utility of optical genome mapping in the diagnosis.

Neurogenetics
2025

Phenotypic Spectrum of KATNIP-Associated Joubert Syndrome: Possible Association with Esophageal Atresia and Review of the Literature.

Genes
2025

Expanding the spectrum of ATP8A2 mutations: a new splicing variant and systematic review of CAMRQ4 syndrome.

Molecular biology reports
2025

Natural history of patients with autosomal dominant WFS1 pathogenic variants associated with sensorineural hearing loss and optic atrophy.

medRxiv : the preprint server for health sciences
2025

Movement Disorders in Hereditary Cerebellar Ataxia.

Movement disorders clinical practice
2025

Poretti-Boltshauser Syndrome: A Report of Two Cases From Bahrain With a Novel Mutation and Literature Review.

Cureus
2025

Phenotypic variability in two siblings with Poretti-Boltshauser syndrome.

Global medical genetics
2025

Biallelic variants in GTF3C3 result in an autosomal recessive disorder with intellectual disability.

Genetics in medicine : official journal of the American College of Medical Genetics
2024

PHARC syndrome: an overview.

Orphanet journal of rare diseases
2024

Clinical and Molecular Spectrum of Autosomal Recessive CA8-Related Cerebellar Ataxia.

Movement disorders : official journal of the Movement Disorder Society
2023

Compound Heterozygosity in Cerebellar Ataxia, Mental Retardation, and Disequilibrium Syndrome Type 4.

Prilozi (Makedonska akademija na naukite i umetnostite. Oddelenie za medicinski nauki)
2024

Panoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function variants in TMEM141, DDHD2, and LHFPL5.

Frontiers of medicine
2023

Clinical, biochemical, and molecular characterization of mucopolysaccharidosis type III in 34 Egyptian patients.

American journal of medical genetics. Part A
2023

Characterization of Vps13b-mutant mice reveals neuroanatomical and behavioral phenotypes with females less affected.

Neurobiology of disease
2023

Biallelic MED27 variants lead to variable ponto-cerebello-lental degeneration with movement disorders.

Brain : a journal of neurology
2023

Novel LSS variants in alopecia and intellectual disability syndrome: New case report and clinical spectrum of LSS-related rare disease traits.

Clinical genetics
2023

The epilepsy phenotype of ST3GAL3-related developmental and epileptic encephalopathy.

Epilepsia open
2023

A Biallelic Truncating Variant in the TPR Domain of GEMIN5 Associated with Intellectual Disability and Cerebral Atrophy.

Genes
2022

Joubert syndrome: Molecular basis and treatment.

Journal of mother and child
2024

Suspected Autosomal Recessive Polycystic Kidney Disease but Cerebellar Vermis Hypoplasia, Oligophrenia Ataxia, Coloboma, and Hepatic Fibrosis (COACH) Syndrome in Retrospect, A Delayed Diagnosis Aided by Genotyping and Reverse Phenotyping: A Case Report and A Review of the Literature.

Nephron
2023

Phenotypic spectrum of patients with Poretti-Boltshauser syndrome: Patient report of antenatal ventriculomegaly and esophageal atresia.

European journal of medical genetics
2023

First case of desmosterolosis diagnosed by prenatal whole exome sequencing.

American journal of medical genetics. Part A
2022

A Case of Gillespie Syndrome With Atypical Presentation.

Cureus
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

Radiological Findings of Woodhouse-Sakati Syndrome: Cases Reported From Saudi Arabia.

Cureus
2022

Expanding the pre- and postnatal phenotype of WASHC5 and CCDC22 -related Ritscher-Schinzel syndromes.

European journal of medical genetics
2022

Expression Analyses of Polo-Like Kinase 4, a Gene Product Responsible for Autosomal Recessive Microcephaly and Seckel Syndrome, during Mouse Brain Development.

Developmental neuroscience
2022

Adult Presentation of Joubert Syndrome Presenting With Dysphagia: A Case Report.

Cureus
2022

Molecular Characterization of Portuguese Patients with Hereditary Cerebellar Ataxia.

Cells
2022

Expression Analyses of Cep152, a Responsible Gene Product for Autosomal Recessive Primary Microcephaly, during Mouse Brain Development.

Developmental neuroscience
2022

Biallelic TERT variant leads to Hoyeraal-Hreidarsson syndrome with additional dyskeratosis congenita findings.

American journal of medical genetics. Part A
2022

Antenatal presentation and supratentorial brain abnormalities in a child with Poretti-Boltshauser syndrome.

Brain & development
2021

Progressive bilateral nuclear cataracts associated with cerebellar-facial-dental syndrome: case report, literature review, and identification of a new genetic variant.

Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus
2021

Spastic paraplegia type 46: novel and recurrent GBA2 gene variants in a compound heterozygous Italian patient with spastic ataxia phenotype.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2021

A case report of Joubert syndrome with renal involvement and seizures in a neonate.

Radiology case reports
2021

Cerebellofaciodental syndrome in an adult patient: Expanding the phenotypic and natural history characteristics.

American journal of medical genetics. Part A
2021

Treatment of dental caries in a patient with Joubert syndrome without the use of sedatives: A case study.

Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry
2023

Knobloch Syndrome in Siblings with Posterior Fossa Malformations Along with Cerebellar Midline Cleft Abnormality Caused by Biallelic COL18A1 Mutation: Case-Based Review.

Journal of pediatric genetics
2021

A novel PNPLA6 mutation in a Turkish family with intractable Holmes tremor and spastic ataxia.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2020

Two Compound Heterozygous Variants in SNX14 Cause Stereotypies and Dystonia in Autosomal Recessive Spinocerebellar Ataxia 20.

Frontiers in genetics
2020

Identification of a novel mutation in ATP13A2 associated with a complicated form of hereditary spastic paraplegia.

Neurology. Genetics
2021

Chudley-McCullough Syndrome: A Recognizable Clinical Entity Characterized by Deafness and Typical Brain Malformations.

Journal of child neurology
2021

Whole exome sequencing identified a novel missense alteration in CC2D2A causing Joubert syndrome 9 in a Pakhtun family.

The journal of gene medicine
2020

PPP1R21-related syndromic intellectual disability: Report of an adult patient and review.

American journal of medical genetics. Part A
2020

The Phenotypic Spectrum of PNKP-Associated Disease and the Absence of Immunodeficiency and Cancer Predisposition in a Dutch Cohort.

Pediatric neurology
2020

Expanding the phenotype of cerebellar-facial-dental syndrome: Two siblings with a novel variant in BRF1.

American journal of medical genetics. Part A
2020

Novel homozygous variant of carbonic anhydrase 8 gene expanding the phenotype of cerebellar ataxia, mental retardation, and disequilibrium syndrome subtype 3.

American journal of medical genetics. Part A
2020

Leukoencephalopathy in Al-Raqad syndrome: Expanding the clinical and neuroimaging features caused by a biallelic novel missense variant in DCPS.

American journal of medical genetics. Part A
2019

Patients with Lately Diagnosed Cerebrotendinous Xanthomatosis.

Neuro-degenerative diseases
2020

Homozygous variants in AMPD2 and COL11A1 lead to a complex phenotype of pontocerebellar hypoplasia type 9 and Stickler syndrome type 2.

American journal of medical genetics. Part A
2019

Long-term follow-up until early adulthood in autosomal dominant, complex SPG30 with a novel KIF1A variant: a case report.

Italian journal of pediatrics
2020

The RNA Exosome and Human Disease.

Methods in molecular biology (Clifton, N.J.)
2019

The molecular genetics of Joubert syndrome and related ciliopathies: The challenges of genetic and phenotypic heterogeneity.

Translational science of rare diseases
2019

Expanding the Clinical Spectrum of LONP1-Related Mitochondrial Cytopathy.

Frontiers in neurology
2020

Just Expect It: Compound Heterozygous Variants of POMT1 in a Consanguineous Family-The Role of Next Generation Sequencing in Neuromuscular Disorders.

Neuropediatrics
2019

A novel truncating variant p.(Arg297*) in the GRM1 gene causing autosomal-recessive cerebellar ataxia with juvenile-onset.

European journal of medical genetics
2019

Homozygosity mapping and whole exome sequencing reveal a novel ERCC8 mutation in a Chinese consanguineous family with unique cerebellar ataxia.

Clinica chimica acta; international journal of clinical chemistry
2019

The novel de novo mutation of KIF1A gene as the cause for Spastic paraplegia 30 in a Japanese case.

eNeurologicalSci
2019

GPR126: A novel candidate gene implicated in autosomal recessive intellectual disability.

American journal of medical genetics. Part A
2019

MAB21L1 loss of function causes a syndromic neurodevelopmental disorder with distinctive cerebellar, ocular, craniofacial and genital features (COFG syndrome).

Journal of medical genetics
2018

Exome Sequencing Identifies a Novel Sorting Nexin 14 Gene Mutation Causing Cerebellar Atrophy and Intellectual Disability.

Case reports in genetics
2018

Nystagmus And Beyond: A Rare Ocular Motility Disorder.

Journal of Ayub Medical College, Abbottabad : JAMC
2018

Biochemical Characterization of the GBA2 c.1780G>C Missense Mutation in Lymphoblastoid Cells from Patients with Spastic Ataxia.

International journal of molecular sciences
2018

Mutations in the Neuroblastoma Amplified Sequence gene in a family affected by Acrofrontofacionasal Dysostosis type 1.

Bone
2018

De novo mutation screening in childhood-onset cerebellar atrophy identifies gain-of-function mutations in the CACNA1G calcium channel gene.

Brain : a journal of neurology
2018

A novel splice site variant in ITPR1 gene underlying recessive Gillespie syndrome.

American journal of medical genetics. Part A
2018

Cerebellar cognitive affective syndrome: insights from Joubert syndrome.

Cerebellum & ataxias
2018

Further Delineation of the Clinical Phenotype of Cerebellar Ataxia, Mental Retardation, and Disequilibrium Syndrome Type 4.

Journal of central nervous system disease
2018

Biallelic CHP1 mutation causes human autosomal recessive ataxia by impairing NHE1 function.

Neurology. Genetics
2018

Clinical, Biomarker, and Molecular Delineations and Genotype-Phenotype Correlations of Ataxia With Oculomotor Apraxia Type 1.

JAMA neurology
2017

Homozygous GRID2 missense mutation predicts a shift in the D-serine binding domain of GluD2 in a case with generalized brain atrophy and unusual clinical features.

BMC medical genetics
2018

Congenital Disorders of Autophagy: What a Pediatric Neurologist Should Know.

Neuropediatrics
2017

Missense mutation in the ITPR1 gene presenting with ataxic cerebral palsy: Description of an affected family and literature review.

Neurologia i neurochirurgia polska
2017

Biallelic COL3A1 mutations result in a clinical spectrum of specific structural brain anomalies and connective tissue abnormalities.

American journal of medical genetics. Part A
2017

Cerebellar hypoplasia with endosteal sclerosis is a POLR3-related disorder.

European journal of human genetics : EJHG
2017

Hypomorphic mutations in POLR3A are a frequent cause of sporadic and recessive spastic ataxia.

Brain : a journal of neurology
2017

Variants in CPLX1 in two families with autosomal-recessive severe infantile myoclonic epilepsy and ID.

European journal of human genetics : EJHG
2017

Behavioral and neuroanatomical analyses in a genetic mouse model of 2q13 duplication.

Genes to cells : devoted to molecular & cellular mechanisms
2017

SLC30A9 mutation affecting intracellular zinc homeostasis causes a novel cerebro-renal syndrome.

Brain : a journal of neurology
2017

A novel mutation in the proteolytic domain of LONP1 causes atypical CODAS syndrome.

Journal of human genetics
2016

Orocraniofacial findings of a Pediatric Patient with Joubert Syndrome.

International journal of clinical pediatric dentistry
2017

New diagnosis of atypical ataxia-telangiectasia in a 17-year-old boy with T-cell acute lymphoblastic leukemia and a novel ATM mutation.

Journal of human genetics
2017

WDR73 missense mutation causes infantile onset intellectual disability and cerebellar hypoplasia in a consanguineous family.

Clinica chimica acta; international journal of clinical chemistry
2017

Novel CC2D2A compound heterozygous mutations cause Joubert syndrome.

Molecular medicine reports
2017

Diagnosis of Joubert syndrome via ultrasonography.

Journal of medical ultrasonics (2001)
2016

Homozygous KCNMA1 mutation as a cause of cerebellar atrophy, developmental delay and seizures.

Human genetics
2016

Genome sequencing reveals a splice donor site mutation in the SNX14 gene associated with a novel cerebellar cortical degeneration in the Hungarian Vizsla dog breed.

BMC genetics
2016

Huppke-Brendel syndrome in a seven months old boy with a novel 2-bp deletion in SLC33A1.

Metabolic brain disease
2016

Expanding the spectrum of PEX10-related peroxisomal biogenesis disorders: slowly progressive recessive ataxia.

Journal of neurology
2016

[Autosomal recessive spinocerebellar ataxias in Japan].

Rinsho shinkeigaku = Clinical neurology
2016

Whole exome sequencing is necessary to clarify ID/DD cases with de novo copy number variants of uncertain significance: Two proof-of-concept examples.

American journal of medical genetics. Part A
2017

Autosomal recessive truncating MAB21L1 mutation associated with a syndromic scrotal agenesis.

Clinical genetics
2016

Microcephaly, dysmorphic features, corneal dystrophy, hairy nipples, underdeveloped labioscrotal folds, and small cerebellum in four patients.

American journal of medical genetics. Part A
2017

Putative digenic inheritance of heterozygous RP1L1 and C2orf71 null mutations in syndromic retinal dystrophy.

Ophthalmic genetics
2016

Pyridoxine-Dependent Epilepsy: An Expanding Clinical Spectrum.

Pediatric neurology
2016

Nystagmus in a newborn: a manifestation of Joubert syndrome in the neonatal period.

BMJ case reports
2016

Congenital disorders of autophagy: an emerging novel class of inborn errors of neuro-metabolism.

Brain : a journal of neurology
2015

Autosomal-Recessive Intellectual Disability with Cerebellar Atrophy Syndrome Caused by Mutation of the Manganese and Zinc Transporter Gene SLC39A8.

American journal of human genetics
2016

Orofacial manifestations and dental considerations in association with Varadi-Papp syndrome: report of a rare case.

European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry
2016

A homozygous mutation of VWA3B causes cerebellar ataxia with intellectual disability.

Journal of neurology, neurosurgery, and psychiatry
2016

A nonsense variant in HERC1 is associated with intellectual disability, megalencephaly, thick corpus callosum and cerebellar atrophy.

European journal of human genetics : EJHG
2015

WDR73 Mutations Cause Infantile Neurodegeneration and Variable Glomerular Kidney Disease.

Human mutation
2016

Mutations in FLVCR2 associated with Fowler syndrome and survival beyond infancy.

Clinical genetics
2015

Inferior cerebellar hypoplasia resembling a Dandy-Walker-like malformation in purebred Eurasier dogs with familial non-progressive ataxia: a retrospective and prospective clinical cohort study.

PloS one
2015

A deletion in the VLDLR gene in Eurasier dogs with cerebellar hypoplasia resembling a Dandy-Walker-like malformation (DWLM).

PloS one
2015

A novel X-linked trichothiodystrophy associated with a nonsense mutation in RNF113A.

Journal of medical genetics
2015

BRF1 mutations alter RNA polymerase III-dependent transcription and cause neurodevelopmental anomalies.

Genome research

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Ordenadas pelo número de sintomas em comum.

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. 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· PMID 41457191mais citado
  2. Deciphering Spastic Ataxia: Clinical and Genetic Profiles.
    Neurology. Genetics· 2025· PMID 41357347mais citado
  3. RAB23 loss-of-function mutation causes context-dependent ciliopathy in Carpenter syndrome.
    PLoS genetics· 2025· PMID 40825043mais citado
  4. Natural history of SPTBN4-related neurodevelopmental disorder with hypotonia, neuropathy, and deafness.
    Orphanet journal of rare diseases· 2025· PMID 40781329mais citado
  5. Natural history of patients with autosomal dominant WFS1 pathogenic variants associated with sensorineural hearing loss and optic atrophy.
    medRxiv : the preprint server for health sciences· 2025· PMID 40061310mais citado
  6. Novel LSS variants in alopecia and intellectual disability syndrome: New case report and clinical spectrum of LSS-related rare disease traits.
    Clin Genet· 2023· PMID 37157980recente
  7. Expanding the pre- and postnatal phenotype of WASHC5 and CCDC22 -related Ritscher-Schinzel syndromes.
    Eur J Med Genet· 2022· PMID 36130690recente
  8. Antenatal presentation and supratentorial brain abnormalities in a child with Poretti-Boltshauser syndrome.
    Brain Dev· 2022· PMID 34666927recente
  9. PPP1R21-related syndromic intellectual disability: Report of an adult patient and review.
    Am J Med Genet A· 2020· PMID 32985083recente
  10. MAB21L1 loss of function causes a syndromic neurodevelopmental disorder with distinctive cerebellar, ocular, craniofacial and genital features (COFG syndrome).
    J Med Genet· 2019· PMID 30487245recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:404481(Orphanet)
  2. MONDO:0018446(MONDO)
  3. Epilepsia(PCDT · Ministério da Saúde)
  4. GARD:21719(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)
  7. Q55346047(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.

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Síndrome de ataxia cerebelar-epilepsia-perturbação do desenvolvimento intelectual autossômica recessiva

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