Ekbom's syndrome: Lipomas, ataxia, and neuropathy with MERRF
β Scribed by Dr. Peter A. Calabresi; Dr. Gabriella Silvestri; Dr. Salvatore DiMauro; Dr. Robert C. Griggs
- Book ID
- 102536659
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 279 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0148-639X
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β¦ Synopsis
Abstract
A 66βyearβold woman with hereditary deafness and multiple symmetric lipomas presented with ataxia, slight myopathy, and neuropathy. Molecular genetic analysis of mitochondrial DNA revealed the adenine to guanine transition at position 8344 in the tRNA gene for lysine that has been associated with the myoclonic epilepsy and ragged red fiber (MERRF) syndrome. The deafness was transmitted by the patien's father and may have been an unrelated autosomal defect rather than a paternally transmitted mitochondrial point mutation. Β© 1994 John Wiley & Sons, Inc.
π SIMILAR VOLUMES
Myoclonus epilepsy and ragged-red fibers syndrome (MERRF) is caused by a heteroplasmic mutation at nucleotide 8344 (A8344G) of the tRNA(Lys) gene of mitochondrial DNA (mtDNA). This mutation impairs mitochondrial protein synthesis and causes a respiratory chain dysfunction. The risk for transmission