Mucopolysaccharidosis type I (MPS1) is an autosomal recessive lysosomal storage disorder caused by deficient activity of alpha-L-iduronidase in glycosaminoglycan degradation. The enzyme defect results in the accumulation of heparan sulfate and dermatan sulfate in many organs, as well as elevated metabolite levels in urine. Hurler syndrome is characterized by coarse faces, hydrocephalus, dysostosis multiplex, cardiac valve disease, airway obstruction, and mental retardation. Scheie syndrome is a milder form.
Category
Inherited metabolic disorder, Lysosomal disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
05 Endocrine, nutritional or metabolic diseases
Metabolic disorders
Inborn errors of metabolism
5C56 Lysosomal diseases
H00128 Mucopolysaccharidosis type I
Pathway-based classification of diseases [BR:br08402]
Glycan/glycoprotein metabolism
nt06012 Glycosaminoglycan degradation
H00128 Mucopolysaccharidosis type I
