Please use this identifier to cite or link to this item: https://doi.org/10.1002/mds.21699
Title: Genetic analysis of SCA 2 and 3 repeat expansions in essential tremor and atypical Parkinsonism
Authors: Tan E.-K. 
Tong J.
Pavanni R. 
Wong M.-C. 
Zhao Y.
Issue Date: 2007
Publisher: Wiley
Citation: Tan E.-K., Tong J., Pavanni R., Wong M.-C., Zhao Y. (2007). Genetic analysis of SCA 2 and 3 repeat expansions in essential tremor and atypical Parkinsonism. Movement Disorders 22 (13) : 1971-1974. ScholarBank@NUS Repository. https://doi.org/10.1002/mds.21699
Abstract: Anecdotal reports suggest that patients with spinocerebellar ataxia (SCA 2) patients can present with postural tremor with ataxia. We determined the prevalence of SCA2 and SCA3 mutations in a cohort of ET and atypical Parkinsonism patients. A total of 277 subjects comprising of 177 ET and 100 atypical Parkinsonism were examined. We identified one positive case of SCA3 among those who were diagnosed with ET, yielding a prevalence of 0.5%, but a zero prevalence among our atypical Parkinsonism patients. No study subjects carried an abnormal SCA2 repeat expansion. Our study highlights that SCA3 can present initially with ET symptoms, expanding the spectrum of genetic diseases that can be associated with ET-like phenotype. Routine screening for SCA2 and SCA3 in ET and atypical Parkinsonism patients may not be cost effective. However, in the long-term follow-up of patients who present with an ET phenotype, clinicians should be vigilant for other neurological signs, which may be point to an alternate diagnosis. 2007 Movement Disorder Society.
Source Title: Movement Disorders
URI: http://scholarbank.nus.edu.sg/handle/10635/149201
ISSN: 08853185
DOI: 10.1002/mds.21699
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