Report of a mucopolysaccharidosis occurring in Australian aborigines.

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Abstract
The 1st 2 reported cases of a mucopolysaccharidosis occurring in an Australian aboriginal family are presented. Though these children had the characteristic morphological features of the Hurler syndrome, enzyme assay of cultured fibroblasts showed normal levels of .alpha.-L-iduronidase and decreased activity of arylsulfatase B. They represented the Hurler syndrome clinically, while they had the enzyme defect of the Maroteaux-Lamy syndrome and they may represent a new severe form of the Maroteaux-Lamy syndrome. The parents of these children were 1st cousins. Though the children were not full blood aborigines, examination of the pedigree indicates that the gene originated in the common aboriginal family.

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