Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0036572 (seizures)
 80,221 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 15-year-old girl evidenced a slowly progressive central nervous system degenerative disorder. The illness had begun and progressed between ages 1 and 12 years, with ataxia, spasticity, choreoathetosis, early-onset seizures (which later ceased), and mild retardation. At age 13 she had developed rapidly progressive generalized weakness and atrophy, indicating peripheral nervous system involvement. Laboratory investigation revealed the presence of sea-blue histiocytes in the bone marrow without evidence of a disorder of sphingolipid metabolism or neuronal ceroid lipofuscinosis. Muscle biopsy showed large- and small-group atrophy, and sural nerve biopsy demonstrated axonal degeneration. This patient's illness appears to be a hitherto undescribed form of "sea-blue histiocytosis" associated with neurological dysfunction in children.
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PMID:A new form of sea-blue histiocytosis associated with progressive anterior horn cell and axonal degeneration. 608 45

We studied the clinical features, laboratory investigation, management and natural history of a cohort of patients with Juvenile Parkinsonism (JP), seen at a tertiary referral centre. JP was defined as Parkinsonism with onset at age 20 years or less. Six patients (five male, one female) entered the study. The mean age at onset of Parkinsonism was 12.5 years (range 7-19) and the mean follow-up time was 49.3 months (range 40-57). Bradykinesia, rigidity, and postural instability were observed in all patients and five subjects had tremor. Dystonia was present in four subjects. Other clinical features were dementia (five subjects), supranuclear ophthalmoparesis (five subjects), seizures (three subjects), multifocal myoclonus (one subject), decreased deep reflexes (one subject), pyramidal signs (one subject). Family history of Parkinson's disease (PD) was positive in one subject. Work-up for Wilson's disease was negative in all patients. Neuroimaging studies showed cortical atrophy in two subjects and mild brainstem atrophy in two others. Sea-blue histiocytes were found in one subject. L-dopa improved the Parkinsonism in all subjects but four rapidly developed fluctuations and dyskinesias, requiring, in one, stereotaxic surgery. After a mean disease duration of 6.5 years, five subjects require assistance for performance of all daily activities. JP is a heterogeneous clinical entity. In the majority of patients, no underlying cause is identified. The unusual clinical features suggest most subjects have a CNS degenerative disease distinct from PD. There is, however, evidence suggesting that PD may rarely cause JP. Gangliosidosis is another cause of L-dopa-responsive JP. Regardless of the cause, in the present study JP displays an aggressive and rapidly progressive course in most patients.
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PMID:Juvenile parkinsonism: a heterogeneous entity. 1105 29