PELIZAEUS MERZBACHER DISEASE | |
PROTEOLIPID PROTEIN, MYELIN; PELIZAEUS-MERZBACHER SYNDROME | |
312080
OMIM = Online Mendelian Inheritance of Men | |
702 | |
Myelin proteolipid protein | |
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Xp22.2 |
|
E75.2 | |
rare X-linked recessive mutation in the PLP1 gene 2 types: type I: Classical form, less severe with survival into adulthood type II: Connatal form, most severe with death in first decade | |
Laboratory findings | N-Acetylaspartylglutamate inc (urine) |
Symptoms | ataxia chorea or athetosis dysarthria dystonia EMG abnormalities [-] eye movements, abnormal fasciculations hearing defect, deafness hypertonia, spasticity hypotonia mental retardation microcephaly (<2 SD for age) motor retardation MRI, brain, abnormalities [-] nystagmus onset, childhood onset, infancy onset, neonatal optic atrophy progressive neurologic defect psychomotor retardation seizures stridor |