Charcot-Marie-Tooth disease: molecular characterization of patients from central and southern Italy.

Abstract:

:The syndrome of peroneal muscular atrophy, or Charcot-Marie-Tooth (CMT), disease represents the most common inherited peripheral neuropathy, with a prevalence of about 1 per 2500. The disease is usually transmitted in an autosomal dominant fashion, although it can display all the mendelian patterns of inheritance. The chromosome 17-linked form (CMT1a) appears to be the most common form of the disease in all the ethnic groups studied so far, Italians included, and is due to a tandem duplication in 17p11.2. In order to study the distribution of CMT types and to establish a genotype-phenotype correlation in patients from Central and Southern Italy, we collected 19 CMT pedigrees diagnosed in the years 1992-1993. Simple tandem repeats (STR) polymorphism analysis with the marker RM11-GT and Southern blotting with the probes pVAW409R3 and pVAW412 were performed, demonstrating a high prevalence (about 60%) of 17p duplication in the families studied. No clinical or electrophysiological differences were noted between CMT1 patients with or without 17p duplication, respectively. Two families affected by CMT2 showed no evidence of rearrangement at the D17S122 locus. These data are consistent with the hypothesis of a different molecular basis for CMT2.

journal_name

Clin Genet

journal_title

Clinical genetics

authors

Guzzetta V,Santoro L,Gasparo-Rippa P,Ragno M,Vita G,Caruso G,Andria G

doi

10.1111/j.1399-0004.1995.tb03917.x

subject

Has Abstract

pub_date

1995-01-01 00:00:00

pages

27-32

issue

1

eissn

0009-9163

issn

1399-0004

journal_volume

47

pub_type

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