Mucopolysaccharidosis type I: genetic variants and enzyme replacement therapy experience in Saint-Petersburg

In this article we describe a 5th years experience of enzyme replacement therapy (ERT) of mucopolysaccharidosis (MPS) type I, an autosomal recessive disease caused by deficienty of α-L- iduronidase. ERT by Aldurazyme (BioMarin, Genzyme, USA) used for patients with proved MPS I. The drug was intravenously administered in a dose 100 U/kg or 0,58 mg/kg per week. Also we evaluate the prevalence of genetic variants and first symptoms of the disease on a base of results of clinical examination and therapy children with MPS I in 2007—2012 years in 3rd pediatric department of State Pediatric Medical University. Composed recommendations for early diagnostic MPS I for specialists and parents