Spinocerebellar ataxia type 6
Last updated 29 Jul 2022
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Spinocerebellar ataxia type 6 (SCA6) is a condition characterised by progressive problems with movement. People with this condition initially experience problems with coordination and balance (ataxia). Other early signs and symptoms of SCA6 include speech difficulties, involuntary eye movements (nystagmus), and double vision. Over time, individuals with SCA6 may develop loss of coordination in their arms, tremors, and uncontrolled muscle tensing (dystonia).
Description
Spinocerebellar ataxia type 6 (SCA6) is a condition characterised by progressive problems with movement. People with this condition initially experience problems with coordination and balance (ataxia). Other early signs and symptoms of SCA6 include speech difficulties, involuntary eye movements (nystagmus), and double vision. Over time, individuals with SCA6 may develop loss of coordination in their arms, tremors, and uncontrolled muscle tensing (dystonia).
Signs and symptoms of SCA6 typically begin in a person's forties or fifties but can appear anytime from childhood to late adulthood. People with this disorder may require walking or mobility assistance later in life.
Inheritance patterns
The source lists the following possible inheritance patterns: Autosomal dominant. More than one pattern can apply in different cases.
Related genes
Other names
SCA6
Type 6 spinocerebellar ataxia
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Further reading and references
- Spinocerebellar ataxia type 6; MedlinePlus, National Library of Medicine.
- Casey HL, Gomez CM. Spinocerebellar Ataxia Type 6. 1998 Oct 23 [updated 2019 Nov 21]. In: Adam MP, Bick S, Mirzaa GM, Wallace SE, Amemiya A, editors. GeneReviews(R) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2026. Available from http://www.ncbi.nlm.nih.gov/books/NBK1140/
- Ishiguro T, Ishikawa K, Takahashi M, Obayashi M, Amino T, Sato N, Sakamoto M, Fujigasaki H, Tsuruta F, Dolmetsch R, Arai T, Sasaki H, Nagashima K, Kato T, Yamada M, Takahashi H, Hashizume Y, Mizusawa H. The carboxy-terminal fragment of alpha(1A) calcium channel preferentially aggregates in the cytoplasm of human spinocerebellar ataxia type 6 Purkinje cells. Acta Neuropathol. 2010 Apr;119(4):447-64. doi: 10.1007/s00401-009-0630-0. Epub 2009 Dec 31.
- Kordasiewicz HB, Gomez CM. Molecular pathogenesis of spinocerebellar ataxia type 6. Neurotherapeutics. 2007 Apr;4(2):285-94. doi: 10.1016/j.nurt.2007.01.003.
- Rajakulendran S, Schorge S, Kullmann DM, Hanna MG. Dysfunction of the Ca(V)2.1 calcium channel in cerebellar ataxias. F1000 Biol Rep. 2010 Jan 18;2:4. doi: 10.3410/B2-4.
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