A ataxia cerebelar autossômica dominante (ACDA) tipo III é um grupo de doenças neurodegenerativas caracterizadas principalmente por sintomas que afetam o cerebelo (a parte do cérebro que controla o equilíbrio e a coordenação), mas que ocasionalmente podem incluir outros sinais não cerebelares, como: sinais piramidais (problemas que afetam os movimentos), neuropatia periférica (problemas nos nervos das extremidades) e cãibra do escrivão (dificuldade e dor para escrever). Ela abrange tipos como a ataxia espinocerebelar (SCA) tipo 5 (SCA5), SCA6, SCA11, SCA26, SCA30 e SCA31.
Introdução
O que você precisa saber de cara
A ataxia cerebelar autossômica dominante (ACDA) tipo III é um grupo de doenças neurodegenerativas caracterizadas principalmente por sintomas que afetam o cerebelo (a parte do cérebro que controla o equilíbrio e a coordenação), mas que ocasionalmente podem incluir outros sinais não cerebelares, como: sinais piramidais (problemas que afetam os movimentos), neuropatia periférica (problemas nos nervos das extremidades) e cãibra do escrivão (dificuldade e dor para escrever). Ela abrange tipos como a ataxia espinocerebelar (SCA) tipo 5 (SCA5), SCA6, SCA11, SCA26, SCA30 e SCA31.
Escala de raridade
<1/50kMuito rara
1/20kRara
1/10kPouco freq.
1/5kIncomum
1/2k
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Sinais e sintomas
O que aparece no corpo e com que frequência cada sintoma acontece
Partes do corpo afetadas
+ 49 sintomas em outras categorias
Características mais comuns
Os sintomas variam de pessoa para pessoa. Abaixo estão as 123 características clínicas mais associadas, ordenadas por frequência.
Linha do tempo da pesquisa
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Genética e causas
O que está alterado no DNA e como passa nas famílias
Genes associados
9 genes identificados com associação a esta condição. Padrão de herança: Autosomal dominant.
Forms a receptor-activated non-selective calcium permeant cation channel (PubMed:29726814, PubMed:30139744, PubMed:35051376, PubMed:9417057, PubMed:9930701, PubMed:10611319) Forms a receptor-activated non-selective calcium permeant cation channel. May be operated by a phosphatidylinositol second messenger system activated by receptor tyrosine kinases or G-protein coupled receptors
Cell membrane
Spinocerebellar ataxia 41
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.
Probably plays an important role in neuronal membrane skeleton
Cytoplasm, cytoskeletonCytoplasm, cell cortex
Spinocerebellar ataxia 5
Spinocerebellar ataxia is 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. SCA5 is an autosomal dominant cerebellar ataxia (ADCA). It is a slowly progressive disorder with variable age at onset, ranging between 10 and 50 years.
Serine/threonine kinase that acts as a key regulator of ciliogenesis: controls the initiation of ciliogenesis by binding to the distal end of the basal body and promoting the removal of CCP110, which caps the mother centriole, leading to the recruitment of IFT proteins, which build the ciliary axoneme. Has some substrate preference for proteins that are already phosphorylated on a Tyr residue at the +2 position relative to the phosphorylation site. Able to phosphorylate tau on serines in vitro (
Cell projection, ciliumCytoplasm, cytoskeleton, cilium basal bodyCytoplasm, cytoskeleton, microtubule organizing center, centrosome, centrioleCytoplasm, cytosolNucleus
Spinocerebellar ataxia 11
Spinocerebellar ataxia is 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. SCA11 is an autosomal dominant cerebellar ataxia (ADCA). It is a relatively benign, late-onset, slowly progressive neurologic disorder.
Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1G gives rise to T-type calcium currents. T-type calcium channels belong to the 'low-voltage activated (LVA)' group and are strongly blocked by mibefradil. A particularity of this type of c
Cell membraneCytoplasm
Spinocerebellar ataxia 42
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. SCA42 is a slowly progressive, autosomal dominant form with variable severity.
Catalyzes the GTP-dependent ribosomal translocation step during translation elongation (PubMed:26593721). During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively (PubMed:26593721). Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome (PubMed:26593721)
CytoplasmNucleus
Spinocerebellar ataxia 26
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.
Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1A gives rise to P and/or Q-type calcium currents. P/Q-type calcium channels belong to the 'high-voltage activated' (HVA) group and are specifically blocked by the spider omega-agatoxin-IVA
Cell membrane
Spinocerebellar ataxia 6
Spinocerebellar ataxia is 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. SCA6 is an autosomal dominant cerebellar ataxia (ADCA), mainly caused by expansion of a CAG repeat in the coding region of CACNA1A. There seems to be a correlation between the repeat number and earlier onset of the disorder.
Involved in the regulation of cell migration (PubMed:18534823). May be involved in mediating the organization of the parallel fibers of granule cells during cerebellar development (By similarity)
Cell membraneCell junctionGolgi apparatus, trans-Golgi network
Spinocerebellar ataxia 45
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. SCA45 is a slowly progressive, autosomal dominant form with onset in adulthood.
Membrane
Spinocerebellar ataxia 31
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. SCA31 belongs to the autosomal dominant cerebellar ataxias type III (ADCA III) which are characterized by pure cerebellar ataxia without additional signs.
Catalyzes the first and rate-limiting reaction of the four reactions that constitute the long-chain fatty acids elongation cycle. This endoplasmic reticulum-bound enzymatic process allows the addition of 2 carbons to the chain of long- and very long-chain fatty acids (VLCFAs) per cycle. Condensing enzyme that acts specifically toward polyunsaturated acyl-CoA with the higher activity toward C18:3(n-6) acyl-CoA. May participate in the production of monounsaturated and of polyunsaturated VLCFAs of
Endoplasmic reticulum membraneCell projection, dendrite
Spinocerebellar ataxia 38
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. SCA38 is an autosomal dominant form characterized by adult-onset of slowly progressive gait ataxia accompanied by nystagmus. Brain MRI shows cerebellar atrophy.
Medicamentos aprovados (FDA)
1 medicamento encontrado nos registros da FDA americana.
Variantes genéticas (ClinVar)
373 variantes patogênicas registradas no ClinVar.
Classificação de variantes (ClinVar)
Distribuição de 454 variantes classificadas pelo ClinVar.
Vias biológicas (Reactome)
24 vias biológicas associadas aos genes desta condição.
Diagnóstico
Os sinais que médicos procuram e os exames que confirmam
Tratamento e manejo
Remédios, cuidados de apoio e o que precisa acompanhar
Onde tratar no SUS
Hospitais de referência no Brasil e o protocolo oficial do SUS (PCDT)
🇧🇷 Atendimento SUS — Ataxia cerebelosa autossômica dominante tipo III
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
Ensaios em destaque
🟢 Recrutando agora
1 pesquisa recrutando participantes. Converse com seu médico sobre a possibilidade de participar.
Outros ensaios clínicos
Publicações mais relevantes
Mostrando amostra de 5 publicações de um total de 85
Publicações recentes
Autosomal dominant cerebellar ataxia type III: a review of the phenotypic and genotypic characteristics.
Trace eyeblink conditioning in patients with cerebellar degeneration: comparison of short and long trace intervals.
Degree of cerebellar ataxia correlates with three-dimensional mri-based cerebellar volume in pure cerebellar degeneration.
Fine mapping of 16q-linked autosomal dominant cerebellar ataxia type III in Japanese families.
A linkage disequilibrium at the candidate gene locus for 16q-linked autosomal dominant cerebellar ataxia type III in Japan.
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Organizações que acompanham esta doença — pra ter apoio e orientação
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Comunidades
Grupos ativos de quem convive com esta doença aqui no Raras
Ainda não existe comunidade no Raras para Ataxia cerebelosa autossômica dominante tipo III
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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.
- Autosomal dominant cerebellar ataxia type III: a review of the phenotypic and genotypic characteristics.
- Trace eyeblink conditioning in patients with cerebellar degeneration: comparison of short and long trace intervals.
- Degree of cerebellar ataxia correlates with three-dimensional mri-based cerebellar volume in pure cerebellar degeneration.
- Fine mapping of 16q-linked autosomal dominant cerebellar ataxia type III in Japanese families.
- A linkage disequilibrium at the candidate gene locus for 16q-linked autosomal dominant cerebellar ataxia type III in Japan.
Bases de dados e fontes oficiais
Identificadores e referências canônicas usadas para montar este verbete.
- ORPHA:94148(Orphanet)
- MONDO:0019793(MONDO)
- GARD:19253(GARD (NIH))
- Variantes catalogadas(ClinVar)
- Busca completa no PubMed(PubMed)
- Q55346088(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
