Neurogenetics

, Volume 8, Issue 1, pp 57–60

A novel deletion in the GJA12 gene causes Pelizaeus–Merzbacher-like disease

Authors

    • Clinical Genetics, Department of PediatricsUniversity of Padova
  • Eva Trevisson
    • Clinical Genetics, Department of PediatricsUniversity of Padova
  • Maria Cristina Baldoin
    • Clinical Genetics, Department of PediatricsUniversity of Padova
  • Irene Toldo
    • Department of PediatricsUniversity of Padova
  • Stefano Sartori
    • Department of PediatricsUniversity of Padova
  • Milena Calderone
    • Neuroradiology UnitAzienda Ospedaliera Padova
  • Romano Tenconi
    • Clinical Genetics, Department of PediatricsUniversity of Padova
  • AnnaMaria Laverda
    • Department of PediatricsUniversity of Padova
Short Communication

DOI: 10.1007/s10048-006-0065-x

Cite this article as:
Salviati, L., Trevisson, E., Baldoin, M.C. et al. Neurogenetics (2007) 8: 57. doi:10.1007/s10048-006-0065-x

Abstract

Pelizaeus–Merzbacher disease (PMD) and Pelizaeus–Merzbacher-like disease (PMLD) are hypomyelinating disorders of the central nervous system with a very similar phenotype. PMD is an X-linked disorder caused by mutations in PLP1. PMLD is an autosomal recessive condition caused by mutations in GJA12. We report a 5-year-old girl with a complex neurological syndrome and severe hypomyelination on brain magnetic resonance imaging. She harbored a homozygous 34-bp deletion in the coding region of GJA12. There are no distinctive features for the differential diagnosis of PMD/PMLD. GJA12 should be analyzed in all patients without PLP1 mutations but should also be considered the initial genetic test in women and in patients with consanguineous parents.

Keywords

Connexin 46.6Pelizaeus–Merzbacher diseaseAutosomal recessivePLP1Differential diagnosis

Copyright information

© Springer-Verlag 2006