Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Basic aspects of neurodegeneration
- Part II Neuroimaging in neurodegeneration
- Part III Therapeutic approaches in neurodegeneration
- Normal aging
- Part IV Alzheimer's disease
- Part VI Other Dementias
- Part VII Parkinson's and related movement disorders
- Part VIII Cerebellar degenerations
- Part IX Motor neuron diseases
- Part X Other neurodegenerative diseases
- 57 Huntington's disease
- 58 Dentatorubral-pallidoluysian atrophy (DRPLA): model for Huntington's disease and other polyglutamine diseases
- 59 Neuroacanthocytosis
- 60 Brain iron disorders
- 61 Neurological aspects of Wilson's disease
- 62 Disorders of the mitochondrial respiratory chain
- Index
- References
58 - Dentatorubral-pallidoluysian atrophy (DRPLA): model for Huntington's disease and other polyglutamine diseases
from Part X - Other neurodegenerative diseases
Published online by Cambridge University Press: 04 August 2010
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Basic aspects of neurodegeneration
- Part II Neuroimaging in neurodegeneration
- Part III Therapeutic approaches in neurodegeneration
- Normal aging
- Part IV Alzheimer's disease
- Part VI Other Dementias
- Part VII Parkinson's and related movement disorders
- Part VIII Cerebellar degenerations
- Part IX Motor neuron diseases
- Part X Other neurodegenerative diseases
- 57 Huntington's disease
- 58 Dentatorubral-pallidoluysian atrophy (DRPLA): model for Huntington's disease and other polyglutamine diseases
- 59 Neuroacanthocytosis
- 60 Brain iron disorders
- 61 Neurological aspects of Wilson's disease
- 62 Disorders of the mitochondrial respiratory chain
- Index
- References
Summary
First description and historical review
Dentatorubral-pallidoluysian atrophy (DRPLA) was first reported by J. K. Smith in 1958, in a detailed clinical description of a single case (Smith et al., 1958). The disorder is rare in the western hemisphere, but in Japan is approximately as prevalent as Huntington's disease (HD). Like HD, DRPLA is inherited as an autosomal dominant, and shows a wide range of age of onset, with anticipation caused by instability of the triplet repeat expansion (Naito & Oyanagi, 1982; Takahashi et al., 1988; Iizuka et al., 1984; Goto et al., 1982). The triplet repeat expansion mutation which causes DRPLA was identified as part of a program to find genes with triplet repeats as candidates for neuropsychiatric disorders with anticipation (Li et al., 1993; Ross et al., 1993). Two Japanese groups independently used the primers for amplifying the CAG repeat to determine that it is expanded in DRPLA and identify the gene in which this expanded repeat is located, termed atrophin-1 (Koide et al., 1994; Nagafuchi et al., 1994; Margolis et al., 1996). The availability of a genetic test for DRPLA then made it possible to identify other families with DRPLA, some of whom had previously been diagnosed as having HD.
Morphological pattern of pathology
Among the polyglutamine neurodegenerative diseases, the pathology of DRPLA is most similar to that of HD (Ross, 1995). The areas most severely affected are given in the name of the disease. The dentate nucleus of the cerebellum has the greatest degeneration.
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- Neurodegenerative DiseasesNeurobiology, Pathogenesis and Therapeutics, pp. 861 - 870Publisher: Cambridge University PressPrint publication year: 2005