Source:http://linkedlifedata.com/resource/pubmed/id/19595623
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2010-2-3
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pubmed:abstractText |
The autosomal dominant spinocerebellar ataxias, commonly referred to as SCAs, are clinically and genetically heterogeneous neurodegenerative disorders. Twenty-eight genetic subtypes have been identified, of which 7 are caused by expansion of a CAG trinucleotide repeat that encodes a polyglutamine tract in the respective proteins. SCA17 is caused by a CAG/CAA repeat expansion in the TATA box-binding protein-gene (TBP). In some cases the clinical phenotype of SCA17 overlaps that of Huntington's disease (HD), hence the use of the term Huntington's disease-like. We screened 89 patients with a Huntington's disease-like phenotype without the HD-gene mutation and 178 patients with genetically unclassified cerebellar ataxia for the mutation in TBP. A 33-year old woman presenting with an HD like phenotype with a de novo 54 CAG/CAA repeat expansion was identified. Her normal allele included 38 repeats. The patient's mother and father both carried normal range repeats, 38/38 and 33/39 respectively. Analysis of the repeat structures revealed that the expansion had occurred upon expansion of the longer paternal allele. We conclude that, however rare, SCA17 must be considered as a cause of Huntington's disease-like phenotypes and ataxia syndromes, also in isolated cases.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
1873-5126
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
16
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
12-5
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pubmed:dateRevised |
2010-6-1
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pubmed:meshHeading |
pubmed-meshheading:19595623-Adult,
pubmed-meshheading:19595623-Ataxia,
pubmed-meshheading:19595623-Cognition Disorders,
pubmed-meshheading:19595623-Electroencephalography,
pubmed-meshheading:19595623-Family Health,
pubmed-meshheading:19595623-Female,
pubmed-meshheading:19595623-Fluorodeoxyglucose F18,
pubmed-meshheading:19595623-Humans,
pubmed-meshheading:19595623-Huntington Disease,
pubmed-meshheading:19595623-Magnetic Resonance Imaging,
pubmed-meshheading:19595623-Male,
pubmed-meshheading:19595623-Positron-Emission Tomography,
pubmed-meshheading:19595623-TATA-Box Binding Protein,
pubmed-meshheading:19595623-Temporal Lobe,
pubmed-meshheading:19595623-Trinucleotide Repeat Expansion
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pubmed:year |
2010
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pubmed:articleTitle |
Huntington's disease-like and ataxia syndromes: identification of a family with a de novo SCA17/TBP mutation.
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pubmed:affiliation |
Department of Cellular and Molecular Medicine, Section of Neurogenetics, The Panum Institute, University of Copenhagen, Denmark. sarabw@sund.ku.dk <sarabw@sund.ku.dk>
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pubmed:publicationType |
Journal Article,
Case Reports
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