## Abstract The authors report a 7‐year follow‐up video study and molecular data on the Irish rapid‐onset dystonia–Parkinsonism kindred. All affected patients tested had a missense mutation in the Na^+^/K^+^ ‐ATPase α3 subunit (ATP1A3), twice previously identified, suggestive of a mutation hotspot.
ATP1A3 mutation in the first asian case of rapid-onset dystonia-parkinsonism
✍ Scribed by Jee-Young Lee; Seema Gollamudi; Laurie J. Ozelius; Ji-Young Kim; Beom S. Jeon
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 50 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0885-3185
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✦ Synopsis
Abstract
We report a 38‐year‐old Korean man with sporadic rapid‐onset dystonia‐parkinsonism (RDP), who had a Thr 618 Met mutation in the Na^+^/K^+^‐ATPase α3 subunit gene (ATP1A3). At the age of 21, he acutely developed severe dystonia and parkinsonism, which rapidly deteriorated into a wheelchair‐bound state within 4 days. He is the first Asian RDP patient confirmed by genetic testing, ascertaining that RDP gene mutation is present in Asians. Pathophysiological considerations are briefly discussed. © 2007 Movement Disorder Society
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## Background: Rapid-onset dystonia-parkinsonism (rdp) is a genetic movement disorder characterized by abrupt onset over hours to days of bradykinesia, postural instability, dysphagia, dysarthria, and severe dystonic spasms with decreased levels of the dopamine metabolite, homovanillic acid (hva),