Abstract
Spinocerebellar ataxia type 14 (SCA14) is a rare form of autosomal dominant cerebellar ataxias caused by mutations in the protein kinase Cγ gene (PRKCG). We have identified a Japanese patient with SCA14 who carried the Gly128Asp mutation in PRKCG. She first noticed gait unsteadiness at around age 42, and then her gait ataxia worsened very slowly for more than 20 years. At age 62, she was still ambulatory, although cerebellar ataxia was clinically evident. She is the second patient identified with the G128D mutation. Both patients with this mutation showed pure cerebellar ataxia. With only two families with SCA14 found in Japan prior to this study, the clinical features and disease-causing mutations in PRKCG are heterogeneous in the same ethnic background.
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Acknowledgment
The authors are grateful to Doctors S. Yanagawa, Y. Toba and S. Kobayashi (Kobayashi Neurosurgery and Neurology Hospital, Ueda, Japan) for their assistance. This study was supported by a grant from the Research Committee of Ataxic Disease, Research on Specific Disease, the Ministry of Health, Labour, and Welfare, Japan.
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Morita, H., Yoshida, K., Suzuki, K. et al. A Japanese case of SCA14 with the Gly128Asp mutation. J Hum Genet 51, 1118–1121 (2006). https://doi.org/10.1007/s10038-006-0063-8
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DOI: https://doi.org/10.1007/s10038-006-0063-8
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