Whole-exome sequencing identifies compound heterozygous mutations in ARSA of two siblings presented with atypical onset of metachromatic leukodystrophy from a Chinese pedigree.

Abstract excerpt

BACKGROUND: Metachromatic leukodystrophy (MLD) is a rare inherited lysosomal storage disorder caused mainly by variants in arylsulfatase A (ARSA) gene. MLD can be divided into three major clinical forms according to the age of onset: late infantile, juvenile, and adult. We report two siblings of late infantile MLD presenting with cerebellar ataxia as the only first clinical symptom. METHODS: Because of the...

Topics

• Age of Onset
• Asian People
• Cerebroside-Sulfatase
• DNA Mutational Analysis
• Exome
• Heterozygote
• Humans
• Infant
• Leukodystrophy, Metachromatic
• Mutation