A Case of Myoclonus Epilepsy and Ragged-red Fiber Syndrome
Journal of the Korean Neurological Association
;
: 595-600, 1996.
Article
Dans Anglais
| WPRIM
| ID: wpr-157619
ABSTRACT
Myoclonus epilepsy and ragged-red fiber (MERRF) syndrome is one of the common etiologies of progressive myoclonus epilepsy. The clinical features of MERRF syndrome are myoclonus, seizure, dementia, ataxia, neuropathy, myopathy, deafness, and lipouta. The patients with MERRF syndrome have a point mutation in mitochondrial DNA at 8344 or 8356 nucleotide. We are reporting a patient who developed myoclonus and seizure at the age of eighteen. He later showed cerebellar ataxia, peripheral neuropathy, and cognitive dysfunction. Skeletal muscle biopsy failed to demonstrate ragged-red fibers. He was diagnosed as MERRF syndrome by the mitochondrial DNA analysis. He had 86% mutant mitochondrial genomes (A-)G(8%) mutation) in leukocytes, and his asymptomatic mother had 66%. The absence of ragged-red fibers does not rule out the possibility of MERRF syndrome. Demonstration of mitochondrial DNA mutation is the most convincing method for establishing the diagnosis of MERRF.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Ataxie
/
Crises épileptiques
/
Biopsie
/
ADN mitochondrial
/
Ataxie cérébelleuse
/
Épilepsies myocloniques
/
Mutation ponctuelle
/
Syndrome MERRF
/
Neuropathies périphériques
/
Muscles squelettiques
Type d'étude:
Etude diagnostique
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Journal of the Korean Neurological Association
Année:
1996
Type:
Article
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