Sphingolipid Activator Protein B Deficiency: Report of 9 Saudi Patients and Review of the Literature

Mutated PSAP gene resulting in sphingolipid activator protein B deficiency is known to cause metachromatic leukodystrophy variant in which arylsulfatase A is normal. Of 16 patients with metachromatic leukodystrophy that were evaluated in our center, 7 patients were diagnosed with arylsulfatase A—def...

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