Novel mutations in the arylsulfatase A gene in eight Italian families with metachromatic leukodystrophy

被引:8
作者
Bertelli, M [1 ]
Gallo, S [1 ]
Buda, A [1 ]
Cecchin, S [1 ]
Fabbri, A [1 ]
Lapucci, C [1 ]
Andrighetto, G [1 ]
Sidoti, V [1 ]
Lorusso, L [1 ]
Pandolfo, M [1 ]
机构
[1] Ist Malattie Rare Mauro Baschirotto BIRD Fdn Onlu, Med Genet Lab, I-36023 Costozza, Italy
关键词
metachromatic leukodystrophy; novel mutations; arylsulfatase A deficiency;
D O I
10.1016/j.jocn.2005.03.039
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Metachromatic leukodystrophy (MLD) is an autosomal recessive lysosomal storage disease caused by arylsulfatase A (ARSA) deficiency. We analysed the ARSA gene in eight unrelated Italian families with different clinical variants of MLD and identified three novel mutations: two Ser406Gly, (Glu329Ter) associated with late infantile MLD and one (Leu52Pro) with juvenile MLD. Only one family carried a pseudo deficiency allele (Asn350Ser). The IVS2 + 1G > A mutation occurred in four families. We also identified three polymorphisms, all in heterozygosis: Thr391Ser was present in five families, Trp193Cys in four families, and Ala210Ala in one family. We could identify 100% of the alleles causing MLD in the families, involving 12 different mutations, resulting in improved prognosis and genetic counselling. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:443 / 448
页数:6
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