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[Mucopolysaccharidosis type I in Morocco: clinical features and genetic profile]

N Alif1, K Hess, J Straczek

  • 1Hôpital Hassan II, Agadir, Maroc.

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie
|July 27, 2000
PubMed
Abstract

Insights

Mucopolysaccharidoses (MPS) are inherited metabolic disorders. This study characterized MPS I in Moroccan patients, finding the P533R mutation prevalent, aiding genetic screening and counseling.

Area of Science:

  • Biochemistry
  • Genetics
  • Metabolic Disorders

Context:

  • Mucopolysaccharidoses (MPS) are inherited metabolic disorders caused by lysosomal enzyme deficiencies.
  • Glycosaminoglycan accumulation in lysosomes is a hallmark of MPS.
  • Differentiating MPS types, especially MPS I, clinically can be challenging.

Purpose:

  • To characterize Mucopolysaccharidoses (MPS) types in Moroccan patients.
  • To confirm MPS I and II diagnoses using biochemical and molecular analyses.
  • To identify the genetic basis of MPS in the studied population.

Summary:

  • Sixteen Moroccan patients with MPS were investigated, with 12 diagnosed with Hurler syndrome and 3 with Hurler/Scheie's syndrome.
  • Biochemical tests revealed increased urinary glycosaminoglycans (GAGs) and deficient alpha-L-iduronidase activity.
  • Molecular analysis identified the P533R mutation in a significant number of alleles, confirming MPS I.

Impact:

  • Enables MPS I and II screening in Morocco through clinical, radiological, and biological assessments.
  • The identified P533R mutation facilitates screening of healthy carriers and genetic counseling for Moroccan families.
  • Contributes to understanding the genetic landscape of MPS in North Africa.

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