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biological

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Pelizaeus–Merzbacher disease

Pelizaeus–Merzbacher disease Pelizaeus–Merzbacher disease is a rare disorder in which myelin does not form normally and the condition gradually worsens over time.

Pelizaeus–Merzbacher disease is a rare disorder in which myelin does not form normally and the condition gradually worsens over time. It has classic, congenital, transitional, and adult forms, with symptoms that can include abnormal eye movements, tremor, poor coordination, and muscle stiffness; earlier-onset forms are generally more severe.