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Dysmyelinating and demyelinating Charcot-Marie-Tooth disease associated with two myelin protein zero gene mutations

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Drac H., Kabzinska D., Moszynska I., Strugalska-Cynowska H., Hausmanowa-Petrusewicz I., Kochanski A.

Journal of Applied Genetics

2011

tom 52

nr 2

Mutations in the myelin protein zero (MPZ) gene are the third most frequent cause of hereditary motor and sensory neuropathies (HMSN), also called Charcot–Marie–Tooth disorders (CMT). Only in case of recurrent mutations occurring in the MPZ gene is it possible to draw phenotype–genotype correlations essential for establishing the prognosis and outcomes of CMT1. We have surveyed a cohort of 67 Polish patients from CMT families with demyelinating neuropathy for mutations in the MPZ gene. In this study, we report two CMT families in which the Ile135Thr and Pro132Leu mutations have been identified for the MPZ gene. These MPZ gene mutations had not been identified hitherto in the Polish population. The Pro132Leu mutation segregates with a severe early-onset dysmyelinating–hypomyelinating neuropathy, whereas the Ile135Thr substitution is associated with the classical phenotype of CMT1. To the best of our knowledge, we present here, for the first time, morphological data obtained in two sural nerve biopsies pointing to a hypomyelination–dysmyelination process in a family harboring the Pro132Leu mutation in the MPZ gene.

Ograniczanie wyników

1 Journal of Applied Genetics

1 Drac H.

1 Hausmanowa-Petrusewicz I.

1 Kabzinska D.

1 Kochanski A.

1 Moszynska I.

1 Strugalska-Cynowska H.

1 2011

Wyniki wyszukiwania

Dysmyelinating and demyelinating Charcot-Marie-Tooth disease associated with two myelin protein zero gene mutations