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Neurology. 2004 Nov 23;63(10):1968-70.

Early-onset encephalopathy and cortical myoclonus in a boy with MECP2 gene mutation.

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  • 1Department of Child Neurology and Psychiatry, University of Rome La Sapienza, Via dei Sabelli 108, 00185 Rome, Italy. vincenzo.leuzzi@uniroma1.it

Abstract

The authors report the unusual clinical and neurophysiologic features of a sporadic case of a boy carrying an 806delG mutation on the MECP2 gene. A 28-month-old boy was examined for severe developmental delay, seizures, microcephaly, breathing dysfunction, and spontaneous and evoked myoclonic jerks of upper limbs. Neurophysiologic study proved the cortical origin of myoclonus; however, it was not associated with signs of cortical hyperexcitability. 3-Methoxy-4-hydroxy-phenylethylene glycol and valine concentrations were low in CSF.

PMID:
15557528
[PubMed - indexed for MEDLINE]

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