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Machado-Joseph disease

Disease Summary
Associated Targets (2)
Tchem

1

Tbio

1


GARD Rare
Mondo Description Spinocerebellar ataxia type 3 (SCA3), also known as Machado-Joseph disease, is the most common subtype of type 1 autosomal dominant cerebellar ataxia (ADCA type 1), a neurodegenerative disorder, and is characterized by ataxia, external progressive ophthalmoplegia, and other neurological manifestations.
Uniprot Description 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 cerebellum degeneration with variable involvement of the brainstem and spinal cord. SCA3 belongs to the autosomal dominant cerebellar ataxias type I (ADCA I) which are characterized by cerebellar ataxia in combination with additional clinical features like optic atrophy, ophthalmoplegia, bulbar and extrapyramidal signs, peripheral neuropathy and dementia. The molecular defect in SCA3 is the a CAG repeat expansion in ATX3 coding region. Longer expansions result in earlier onset and more severe clinical manifestations of the disease.
Disease Ontology Description An autosomal dominant cerebellar ataxia that is characterized by slow degeneration of the hindbrain and has_material_basis_in expansion of CAG triplet repeats (glutamine) in the ATXN3 gene.
Mondo Term and Equivalent IDs
MONDO:0007182:  Machado-Joseph disease
GARD:0006801: 
MESH:D017827: 
NCIT:C84830: 
Orphanet:98757: 
SCTID:91952008: 
UMLS:C0024408: