Two siblings with metachromatic leukodystrophy caused by a novel identified homozygous mutation in the ARSA gene.

Abstract excerpt

Background Metachromatic leukodystrophy (MLD) is an autosomal recessively (AR) inherited disease caused by the deficiency of the enzyme arylsulfatase A (ARSA). Although MLD is the most common form of hereditary leukoencephalopathy, it is still very rare. More than 200 gene mutations have been identified in the ARSA gene. The most frequently identified mutation is the one located on chromosome 22q13.33. In the...

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