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Protein zero (P0)–deficient mice show myelin degeneration in peripheral nerves characteristic of inherited human neuropathies

Protein zero (P0)–deficient mice show myelin degeneration in peripheral nerves characteristic of... Mutations in the human gene for the myelin recognition molecule protein zero (P0) give rise to severe and progressive forms of dominantly inherited peripheral neuropathies. We have previously reported that mice homozygous for a null mutation in P0 have severely hypomyelinated nerves ten weeks after birth. Here we show hypomyelination already exists at day four with subsequent demyelination and impaired nerve conduction. Furthermore, heterozygous mutants show normal myelination, but develop progressive demyelination after four months of age. Thus, the pathology of homo– and heterozygous P0 mutants resembles that of the severely affected Déjérine–Sottas and the more mildly affected Charcot–Marie–Tooth type 1B patients, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nature Genetics Springer Journals

Protein zero (P0)–deficient mice show myelin degeneration in peripheral nerves characteristic of inherited human neuropathies

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References (37)

Publisher
Springer Journals
Copyright
Copyright © 1995 by Nature Publishing Group
Subject
Biomedicine; Biomedicine, general; Human Genetics; Cancer Research; Agriculture; Gene Function; Animal Genetics and Genomics
ISSN
1061-4036
eISSN
1546-1718
DOI
10.1038/ng1195-281
Publisher site
See Article on Publisher Site

Abstract

Mutations in the human gene for the myelin recognition molecule protein zero (P0) give rise to severe and progressive forms of dominantly inherited peripheral neuropathies. We have previously reported that mice homozygous for a null mutation in P0 have severely hypomyelinated nerves ten weeks after birth. Here we show hypomyelination already exists at day four with subsequent demyelination and impaired nerve conduction. Furthermore, heterozygous mutants show normal myelination, but develop progressive demyelination after four months of age. Thus, the pathology of homo– and heterozygous P0 mutants resembles that of the severely affected Déjérine–Sottas and the more mildly affected Charcot–Marie–Tooth type 1B patients, respectively.

Journal

Nature GeneticsSpringer Journals

Published: Nov 1, 1995

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