Newborn Screening for Lysosomal Storage Disorders in Belgium

Lysosomal storage disorders (LSDs) are a group of metabolic disorders with various clinical presentations, which complicate diagnosis. A pilot study was performed to test the appropriateness and effectiveness of the newborn screening method for Pompe disease, Fabry disease and mucopolysaccharidosis (MPS) I in dried blood spots using liquid chromatography–tandem mass spectrometry. Around 20 000 newborn samples were analyzed for 3 lysosomal enzyme activities: α-glucosidase (deficient in Pompe disease), α-galactosidase (deficient in Fabry disease) and α-iduronidase (IDUA, deficient in MPS I). Dat... Mehr ...