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Lookup NU author(s): Paul Gallagher, Dr Neil Archibald, Dr Paul Goldsmith, Professor David BurnORCiD
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Dopa responsive dystonia results from abnormalities in the dopamine synthesis pathway which produces an array of phenotypic presentations with equally numerous genotypes. First documented in children in 1971, the 'classic' phenotype is childhood onset, predominantly lower limb dystonia which gradually progresses to generalised dystonia. Other hallmarks of 'classical' dopa responsive dystonia include marked diurnal variation in symptom severity (worse in the evening), subsequent development of parkinsonism and an excellent, sustained response to levodopa. More recently, adult onset variants have been reported. Here we discuss two siblings with dopa responsive dystonia caused by a mutation in the GTP cyclohydrolase 1 gene. Both presented in adulthood with tremor rather than the 'classic' phenotype. A video is presented (available online) followed by a brief discussion of the literature.
Author(s): Gallagher P, Archibald N, Goldsmith P, Burn D
Publication type: Article
Publication status: Published
Journal: Practical Neurology
Year: 2010
Volume: 10
Issue: 3
Pages: 160-163
Print publication date: 01/01/2010
ISSN (print): 1474-7758
ISSN (electronic): 1474-7766
Publisher: BMJ Publishing Group
URL: http://dx.doi.org/10.1136/jnnp.2010.211847
DOI: 10.1136/jnnp.2010.211847
PubMed id: 20498189
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