期刊
EUROPEAN JOURNAL OF NEUROLOGY
卷 21, 期 6, 页码 935-938出版社
WILEY-BLACKWELL
DOI: 10.1111/ene.12290
关键词
HSP; SLC30A6; spastin; SPG4
资金
- Telethon Italy [GPP10121A]
Background and purposeThe hereditary spastic paraplegias (HSP) are characterized by progressive spasticity of the lower limbs, mostly inherited as an autosomal dominant trait. Analyses of large HSP pedigrees could help to better characterize the phenotype due to a single causative mutation. Patients in a seven-generation kindred carrying a large deletion in SPAST/SPG4 are described. MethodsIndividuals originating from Sardinia were clinically and genetically studied. ResultsSixty-seven subjects carried a heterozygous deletion encompassing exons 2-17 of SPAST. Fifty patients (53.215.4years) presented a pure form of spastic paraparesis characterized by mild impairment and slow progression. Most patients showed spasticity, increased tendon reflexes in the lower limbs and Babinski sign, whilst weakness was rarely detected and urinary disturbances occasionally reported. Amongst the 17 asymptomatic carriers of the mutation, minimal neurological signs were detected in 11 cases. ConclusionsA focus on spasticity, increased tendon reflexes and Babinski sign, more than on weakness, could help clinicians to promote early diagnosis in asymptomatic carriers of SPAST deletions.
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