Early onset neuropathy in a compound form of Charcot-Marie-Tooth disease.
A 2-year-old boy presented with early-onset Charcot-Marie-Tooth disease (CMT). His parents had not been diagnosed previously with CMT, but on careful examination they showed clinical signs of CMT and reduced nerve conduction velocities. Genetic analysis identified the boy as a heterozygote for both a peripheral myelin protein 22 (PMP22) duplication and a mutation in the lipopolysaccharide-induced-tumour-necrosis-factor-alpha-factor (LITAF) gene, whereas each parent only had one mutated CMT gene. This suggests that LITAF mutations can severely affect the CMT phenotype caused by a PMP22 duplication.
Meggouh
Farid
F
Neurogenetics Laboratory, Academic Medical Center, Amsterdam, The Netherlands.
de Visser
Marianne
M
Arts
Willem F M
WF
De Coo
Rene I F M
RI
van Schaik
Ivo N
IN
Baas
Frank
F
D015139:Blotting, Southern; D002607:Charcot-Marie-Tooth Disease / Q000235:genetics* / Q000473:pathology; D002675:Child, Preschool; D004252:DNA Mutational Analysis; D005260:Female; D020440:Gene Duplication; D005838:Genotype; D006801:Humans; D008297:Male; D009154:Mutation; D009185:Myelin Proteins / Q000235:genetics*; D009687:Nuclear Proteins / Q000235:genetics*; D010375:Pedigree; D010641:Phenotype; D014157:Transcription Factors / Q000235:genetics*
C118738:LITAF protein, human; D009185:Myelin Proteins; D009687:Nuclear Proteins; C073687:PMP22 protein, human; D014157:Transcription Factors