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Successful treatment of carbohydrate deficient glycoprotein syndrome type 1b with oral mannose


An Asian girl presented with failure to thrive, congenital hepatic fibrosis, protein losing enteropathy, and hypoglycaemia. Phosphomannose isomerase activity in skin fibroblasts was reduced. She is homozygous for a mutation, D131N, in the phosphomannose isomerase gene (PM1), consistent with the diagnosis of carbohydrate deficient glycoprotein syndrome type 1b. She responded to oral mannose treatment.

  • carbohydrate deficient glycoprotein syndrome
  • enteropathy
  • hepatic fibrosis
  • hyperinsulinism
  • hypoglycaemia
  • mannose

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