Hereditary motor and sensory neuropathy type 2C is genetically distinct from types 2B and 2D

Masaaki Nagamatsu, Robert Brian Jenkins, Daniel J Schaid, Diane M. Klein, Peter J Dyck

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Background: Linkage analysis studies have identified 3 genetically different varieties of hereditary motor and sensory neuropathy type 2 (HMSN 2, also called Charcot-Marie-Tooth disease type 2, or CMT 2): HMSN 2A (linked to Ip35-p36), 2B (to 3q13-q22), and 2D (to 7p14). Hereditary motor and sensory neuropathy type 2C is characterized by diaphragmatic and vocal cord paresis; its disease locus has not been mapped. Objective: To determine whether the HMSN 2C phenotype, previously shown not to be linked to the HMSN 2A locus, is linked to the HMSN 2B or HMSN 2D loci. Design: Linkage analysis. Setting and Patients: Thirty-three subjects, including 12 affected individuals and 11 individuals at risk, in a large family with HMSN 2C. Results: Evidence was found against linkage of HMSN 2C phenotype to either the HMSN 2B or the 2D loci. Conclusions: HMSN 2C is genetically distinct from HMSN 2A, 2B, and 2D. We think that at least 4 genetically distinct varieties of autosomal dominant HMSN 2 exist.

Original languageEnglish (US)
Pages (from-to)669-672
Number of pages4
JournalArchives of Neurology
Volume57
Issue number5
StatePublished - May 2000

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Hereditary Sensory and Motor Neuropathy
Charcot-Marie-Tooth Disease
Locus
Linkage
Phenotype
Vocal Cord Paralysis

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Hereditary motor and sensory neuropathy type 2C is genetically distinct from types 2B and 2D. / Nagamatsu, Masaaki; Jenkins, Robert Brian; Schaid, Daniel J; Klein, Diane M.; Dyck, Peter J.

In: Archives of Neurology, Vol. 57, No. 5, 05.2000, p. 669-672.

Research output: Contribution to journalArticle

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