Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Henneke, M; Combes, P; Diekmann, S; Bertini, E; Brockmann, K; Burlina, AP; Kaiser, J; Ohlenbusch, A; Plecko, B; Rodriguez, D; Boespflug-Tanguy, O; Gärtner, J.
GJA12 mutations are a rare cause of Pelizaeus-Merzbacher-like disease.
Neurology. 2008; 70(10):748-754
Doi: 10.1212/01.wnl.0000284828.84464.35
Web of Science
PubMed
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- Co-Autor*innen der Med Uni Graz
- Plecko Barbara
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- Abstract:
- Pelizaeus-Merzbacher-like disease (PMLD) is a genetically heterogeneous disorder within the group of hypomyelinating leukoencephalopathies. Mutations of the gap junction protein alpha 12 (GJA12) gene are known to cause one autosomal recessive PMLD form. Few patients with GJA12 mutated PMLD have been reported, and to date, the frequency as well as the genotypic and phenotypic spectrum of GJA12 related PMLD is unclear. We report mutation analysis of the GJA12 gene in a clinical and radiologic well-characterized multiethnic cohort of 193 patients with PMLD from 182 families. Only 16 patients (8.3%) from 14 families (7.7%) carry GJA12 mutations including five families where we detected only one mutated allele. Among those, we identified 11 novel alterations. Thus, GJA12 mutations are a rather rare cause for Pelizaeus-Merzbacher-like disease. The clinical phenotype of patients with a GJA12 mutation was evaluated and is overall comparable to the clinical features seen in mild forms of proteolipid protein 1 (PLP1) related disorder but with better cognition and earlier signs of axonal degeneration.
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