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Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
Published on: December 18, 2016
[Lafora's disease presenting with progressive myoclonus epilepsy]
Y Béjot1, M Lemesle-Martin, F Contégal
1Service de neurologie, CHU, Dijon. ybejot@yahoo.fr
Revue Neurologique
|November 23, 2007
Summary
Lafora disease, a rare genetic epilepsy, requires early suspicion for myoclonus, occipital seizures, and cognitive decline. Diagnosis was confirmed via sweat gland biopsy in a 14-year-old boy with EPM2A gene mutation.
Area of Science:
- Neurology
- Genetics
- Metabolic Disorders
Background:
- Lafora disease is a rare, fatal, autosomal-recessive neurodegenerative disorder characterized by progressive myoclonus epilepsy.
- It necessitates clinical suspicion when patients present with myoclonus, occipital seizures, and cognitive impairment.
Observation:
- A 14-year-old boy experienced occipital and generalized seizures, followed by myoclonus, pharmacoresistant epilepsy, and cognitive deterioration over six years.
- Diagnosis was confirmed through axillary sweat gland duct biopsy, revealing Lafora bodies.
Findings:
- Genetic analysis identified a mutation in the EPM2A gene, confirming Lafora disease.
- The disease results from mutations in EPM2A or EPM2B genes, affecting malin and laforin proteins involved in glycogen metabolism.
- These mutations lead to the accumulation of pathognomonic intracytoplasmic polyglucosan inclusions (Lafora bodies).
Implications:
- Early diagnosis of Lafora disease is crucial for patient management and genetic counseling.
- Understanding the role of malin and laforin in glycogen metabolism may offer therapeutic targets.
- This case highlights the importance of considering rare genetic epilepsies in the differential diagnosis.
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