Rapsyn mutations in hereditary myasthenia: distinct early- and late-onset phenotypes.

Rapsyn mutations in hereditary myasthenia: distinct early- and late-onset phenotypes.

Rapsyn mutations in 16 unrelated patients with a congenital/hereditary myasthenic syndrome were identified, and a mutation (N88K) common to each of them was found. Two distinct phenotypes were noted: early and late onset. The former is frequently associated with arthrogryposis multiplex congenita an...

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Bibliografiske detaljer
Main Authors: Burke, G, Cossins, J, Maxwell, S, Owens, G, Vincent, A, Robb, S, Nicolle, M, Hilton-Jones, D, Newsom-Davis, J, Palace, J, Beeson, D
Format: Journal article
Sprog:English
Udgivet: 2003
Beskrivelse
Summary:Rapsyn mutations in 16 unrelated patients with a congenital/hereditary myasthenic syndrome were identified, and a mutation (N88K) common to each of them was found. Two distinct phenotypes were noted: early and late onset. The former is frequently associated with arthrogryposis multiplex congenita and life-threatening crises. The late-onset phenotype developed in adolescence or adulthood and was initially mistaken for seronegative myasthenia gravis. Recognition of this late-onset phenotype should prevent inappropriate immunotherapy.

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