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Eur J Hum Genet. 2006 Feb;14(2):249-52.

Autosomal recessive mutilating sensory neuropathy with spastic paraplegia maps to chromosome 5p15.31-14.1.

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Service de Neurologie et de Neurogénétique, Hôpital des Spécialités, Rabat, Morocco.


Autosomal recessive ulcero-mutilating neuropathy with spastic paraplegia is a very rare disease since only few cases were described up to date. We report in this study a consanguineous Moroccan family with four affected males with this syndrome. The disease onset was in early infancy, with spastic paraplegia and sensory loss leading to mutilating acropathy. Electrophysiological studies revealed a severe axonal sensory neuropathy, magnetic resonance imaging ruled out compression of spinal cord and biological investigations showed decreased levels of Apo B, total cholesterol and triglycerides. A genomewide search was conducted in this family and linkage was found to chromosome 5p. Analysis of recombination events and LOD score calculation map the responsible gene in a 25 cM genetic interval between markers D5S2054 and D5S648. A maximum LOD score value of 3.92 was obtained for all markers located in this candidate interval. This study establishes the presence of a locus for autosomal recessive mutilating sensory neuropathy with spastic paraplegia on chromosome 5p15.31-14.1.

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