is an autosomal recessive disorder which results in the loss of motor function and the degradation of mental ability, with an average onset age of 1-year-old, however some cases have appeared between the ages of 3 and 10. It is a direct result of the deficiency of the enzyme arylsulfatase A, leading to the myelin coating neurons.
METACHROMATIC LEUKODYSTROPHY: “The autosomal recessive disorder metachromatic leukodystrophy arises due to the lack of the enzyme arylsulfatase.”