Inclusion body myopathy, Paget's disease of the bone and frontotemporal dementia: Recurrence of the VCP R155H mutation in an Italian family and implications for genetic counselling

V. Viassolo, S. C. Previtali, G. Schiatti, G. Magnani, C. Minetti, F. Zara, M. Grasso, F. Dagna-Bricarelli, Emilio Di Maria

Research output: Contribution to journalArticlepeer-review

Abstract

The acronym IBMPFD denotes a syndrome including inclusion body myopathy, Paget's disease of the bone (PDB) and frontotemporal dementia (FTD) as cardinal features, which is caused by missense mutations in the VCP gene. We studied the clinical characteristics and the histopathological features in two siblings and their mother who presented with adult-onset myopathy and presenile, rapidly progressive FTD. One sibling also showed PDB. Light and electron microscopy performed on muscle biopsies demonstrated degenerative changes with inclusion bodies and abnormal aggregates. Mutation analysis of the VCP gene on affected siblings revealed a heterozygous missense mutation (R155H) in a hot spot. This is the first Italian family with multiple individuals diagnosed as having IBMPFD and carrying the recurrent R155H mutation. The implications for genetic counselling were also discussed, with regard to the procedures that may be offered to families suffering from a multisystem disorder with high risk of cognitive decline.

Original languageEnglish
Pages (from-to)54-60
Number of pages7
JournalClinical Genetics
Volume74
Issue number1
DOIs
Publication statusPublished - Jul 2008

Keywords

  • Frontotemporal dementia
  • Genetic counselling
  • IBM
  • IBMPFD
  • VCP

ASJC Scopus subject areas

  • Genetics(clinical)
  • Genetics

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