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The factors precipitating central nervous system (CNS) demyelination, including optic neuritis, remain largely unknown but are likely to represent a complex interplay between the patient's environment and their genetic background. We report the development of sequential demyelinating optic neuritis in a patient with genetically confirmed Charcot-Marie-Tooth disease type 1A, a hereditary neuropathy. This neuropathy is characterized by duplication of peripheral myelin protein 22 (PMP22), which results in structurally abnormal peripheral myelin. By characterizing peripheral T-cell responses in this patient to a panel of myelin epitopes expressed in the CNS we describe an immunological process which indicates that overexpression of PMP22 may be causative and account for this association.

Original publication




Journal article


J Clin Neurosci

Publication Date





1422 - 1423


Charcot-Marie-Tooth Disease, Humans, Male, Middle Aged, Optic Neuritis, Recurrence