1. A family with autosomal dominant mutilating neuropathy not linked to either Charcot-Marie-Tooth disease type 2B (CMT2B) or hereditary sensory neuropathy type I (HSN I) loci
- Author
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Emilia Bellone, Emilio Di Maria, Antonio Pizzuti, Anna Mazzeo, Denise Cassandrini, Simona Pigullo, Antonio Toscano, Carmelo Rodolico, Franco Ajmar, V. Macaione, Paolo Girlanda, Giuseppe Vita, and Paola Mandich
- Subjects
Charcot-Marie-Tooth disease type 2B ,Adult ,Male ,Hereditary sensory neuropathy type I ,Ulcero-mutilating neuropathy ,Adolescent ,Genetic Linkage ,DNA Mutational Analysis ,Locus (genetics) ,Disease ,Hereditary motor and sensory neuropathy type IIB ,Genetic linkage ,Charcot-Marie-Tooth Disease ,Skin Ulcer ,medicine ,Humans ,Hereditary Sensory Neuropathy Type I ,Hereditary Sensory and Autonomic Neuropathies ,Child ,Genetics (clinical) ,Aged ,Genes, Dominant ,Genetics ,Genetic heterogeneity ,business.industry ,General Neuroscience ,Chromosome ,Sensory loss ,medicine.disease ,Pedigree ,Peripheral neuropathy ,Neurology ,Italy ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Sensation Disorders ,Female ,Neurology (clinical) ,Hereditary motor and sensory neuropathy ,business - Abstract
Sensory loss and ulcero-mutilating features have been observed in hereditary sensory neuropathy type I and in hereditary motor and sensory neuropathy type IIB, also referred as Charcot–Marie–Tooth disease type 2B. To date two loci associated with ulcero-mutilating neuropathy have been described: CMT2B at 3q13–q22 and HSN I at 9q22.1–q22.3. We performed linkage analysis with chromosomal markers representing the hereditary sensory neuropathy type I and Charcot–Marie–Tooth disease type 2B loci on an Italian family with a severe distal sensory loss leading to an ulcero-mutilating peripheral neuropathy. Negative likelihood-of-odds scores excluded any evidence of linkage to both chromosome 3q13 and chromosome 9q22 markers, confirming the genetic heterogeneity of this clinical entity and the presence of a third locus responsible for ulcero-mutilating neuropathies.
- Published
- 2002