Spinocerebellar ataxia (SCA) is neurodegenerative diseases affecting mainly cerebellum and brainstem, and new subtypes and pathologies of SCAs have been continuously discovered in the world. Especially, SCA31 and SCA36 (nicknamed Asidan) were first found in Japanese, and their clinical and pathological features are quite unique compared with other SCAs. Recent discovery of repeat associated non-ATG (RAN) translation in the pathogenesis of hereditary SCAs carrying repeat expansion mutations has tremendously extended our understanding in the pathogenesis of SCA and other neurodegenerative diseases. Furthermore, the development of new therapy for SCAs have been extensively investigated in Japan and the world. The aim of this symposium is to learn and discuss the current clinical, pathological and therapeutic findings of SCAs for Japanese and Asian neurologists and neuroscientists.

Spinocerebellar ataxia (SCA) is neurodegenerative diseases affecting mainly cerebellum and brainstem, and new subtypes and pathologies of SCAs have been continuously discovered in the world. Especially, SCA31 and SCA36 (nicknamed Asidan) were first found in Japanese, and their clinical and pathological features are quite unique compared with other SCAs. Recent discovery of repeat associated non-ATG (RAN) translation in the pathogenesis of hereditary SCAs carrying repeat expansion mutations has tremendously extended our understanding in the pathogenesis of SCA and other neurodegenerative diseases. Furthermore, the development of new therapy for SCAs have been extensively investigated in Japan and the world. The aim of this symposium is to learn and discuss the current clinical, pathological and therapeutic findings of SCAs for Japanese and Asian neurologists and neuroscientists.

Spinocerebellar ataxia (SCA) is neurodegenerative diseases affecting mainly cerebellum and brainstem, and new subtypes and pathologies of SCAs have been continuously discovered in the world. Especially, SCA31 and SCA36 (nicknamed Asidan) were first found in Japanese, and their clinical and pathological features are quite unique compared with other SCAs. Recent discovery of repeat associated non-ATG (RAN) translation in the pathogenesis of hereditary SCAs carrying repeat expansion mutations has tremendously extended our understanding in the pathogenesis of SCA and other neurodegenerative diseases. Furthermore, the development of new therapy for SCAs have been extensively investigated in Japan and the world. The aim of this symposium is to learn and discuss the current clinical, pathological and therapeutic findings of SCAs for Japanese and Asian neurologists and neuroscientists.

Spinocerebellar ataxia (SCA) is neurodegenerative diseases affecting mainly cerebellum and brainstem, and new subtypes and pathologies of SCAs have been continuously discovered in the world. Especially, SCA31 and SCA36 (nicknamed Asidan) were first found in Japanese, and their clinical and pathological features are quite unique compared with other SCAs. Recent discovery of repeat associated non-ATG (RAN) translation in the pathogenesis of hereditary SCAs carrying repeat expansion mutations has tremendously extended our understanding in the pathogenesis of SCA and other neurodegenerative diseases. Furthermore, the development of new therapy for SCAs have been extensively investigated in Japan and the world. The aim of this symposium is to learn and discuss the current clinical, pathological and therapeutic findings of SCAs for Japanese and Asian neurologists and neuroscientists.