title: Clinicogenetical features of a Japanese patient with giant axonal neuropathy.
abstract: Giant axonal neuropathy (GAN) is a rare autosomal recessive disorder that affects both the peripheral nerves and central nervous system. Since the discovery in 2000 of the gigaxonin gene on chromosome 16q24.1 to be causative, more than 40 GAN mutations have been reported from different racial backgrounds. We report the clinicogenetic findings of a 24-year-old Japanese man with GAN. He had consanguineous parents and showed the phenotype of classical severe GAN. We found a novel homozygous nonsense mutation (p.R162X) in the GAN gene. This is the first genetically-determined Japanese case of GAN, with a follow-up period of more than 15 years. In addition, this mutation is novel. We also reviewed previous reports of GAN to see whether there is any genotype-phenotype correlation.
authors.affiliation: Department of Developmental Medicine (Pediatrics), Osaka University Graduate School of Medicine, Suita City, Osaka, Japan. akagi@ped.med.osaka-u.ac.jp
authors.forename: Motohiro
authors.initials: M
authors.lastname: Akagi
authors.forename: Ikuko
authors.initials: I
authors.lastname: Mohri
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Iwatani
authors.forename: Kuriko
authors.initials: K
authors.lastname: Kagitani-Shimono
authors.forename: Takeshi
authors.initials: T
authors.lastname: Okinaga
authors.forename: Norio
authors.initials: N
authors.lastname: Sakai
authors.forename: Keiichi
authors.initials: K
authors.lastname: Ozono
authors.forename: Masako
authors.initials: M
authors.lastname: Taniike
mesh_terms: D002675:Child, Preschool; D003598:Cytoskeletal Proteins / Q000235:genetics*; D004252:DNA Mutational Analysis; D005192:Family Health; D056768:Giant Axonal Neuropathy / Q000235:genetics* / Q000473:pathology*; D006801:Humans; D007564:Japan; D008279:Magnetic Resonance Imaging; D008297:Male; D009154:Mutation / Q000235:genetics*; D014057:Tomography, X-Ray Computed
chemical_list: D003598:Cytoskeletal Proteins; C416508:GAN protein, human