Mucopolysaccharidosis (MPS) IVA is a lysosomal storage disorder caused by mutations in the gene encoding the galactosamine (N-acetyl)-6-sulfatase (GALNS) enzyme. Children with MPS IVA usually develop pectus carinatum, genu valgum, and multiple skeletal abnormalities.
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Jiang et al. (2024) studied this question.
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