Abstract
A large Italian pedigree from southern Italy with autosomal dominant uncomplicated spastic paraplegia is reported. The clinical picture was uniform and characterized by insidiously progressive lower extremity weakness and spasticity. The mean age at onset of symptoms was 8.3 years. Significant linkage to the SPG3 locus on chromosome 14 was detected. The authors also report their search for mutations in a gene located in the region and its exclusion as a candidate for SPG3.
MeSH terms
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Adult
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Age of Onset
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Child
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Child, Preschool
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Chromosome Mapping*
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Chromosomes, Human, Pair 14 / genetics*
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Female
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GTP Phosphohydrolases / genetics*
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GTP-Binding Proteins
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Genes, Dominant*
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Genetic Linkage
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Haplotypes
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Humans
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Italy
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Lod Score
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Male
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Membrane Proteins
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Middle Aged
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Pedigree
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Spastic Paraplegia, Hereditary / genetics*
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Spastic Paraplegia, Hereditary / physiopathology
Substances
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Membrane Proteins
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ATL1 protein, human
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GTP Phosphohydrolases
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GTP-Binding Proteins