Adult polyglucosan body disease: Proton magnetic resonance spectroscopy of the brain and novel mutation in the GBE1 gene

Roberto Massa, Claudio Bruno, Alessandro Martorana, Nicola De Stefano, Otto P. Van Diggelen, Antonio Federico

Research output: Contribution to journalArticle

Abstract

Adult polyglucosan body disease (APBD) is characterized by the accumulation of insoluble glucose polymers within the central and peripheral nervous systems. A common missense mutation in the glycogen branching enzyme (GBE1) gene has been identified in Ashkenazi patients with APBD. We report on a non-Jewish patient with APBD on whom we performed proton magnetic resonance spectroscopic imaging of the brain. GBE activity in fibroblasts was markedly reduced, and a novel heterozygous mutation was identified in the GBE1 gene. Our findings widen the spectrum of APBD genotypes, underline the importance of performing GBE analysis in all APBD patients, and suggest that brain white matter degeneration in APBD may result from tissue damage involving axons and myelin.

Original languageEnglish
Pages (from-to)530-536
Number of pages7
JournalMuscle and Nerve
Volume37
Issue number4
DOIs
Publication statusPublished - Apr 2008

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Keywords

  • Adult polyglucosan body disease
  • GBE1 gene mutation
  • Glycogen branching enzyme
  • Nerve pathology
  • Proton magnetic resonance spectroscopic imaging

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

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