Merel A Post, Isis de Wit, Fokje S M Zijlstra, Udo F H Engelke, Arno van Rooij, John Christodoulou, Tiong Yang Tan, Anna Le Fevre, Danqun Jin, Joy Yaplito-Lee, Beom Hee Lee, Karen J Low, Andrew A Mallick, Katrin Õunap, James Pitt, William Reardon, Mari-Anne Vals, Saskia B Wortmann, Hans J C T Wessels, Melissa Bärenfänger, Clara D M van Karnebeek, Dirk J Lefeber
Congenital disorders of glycosylation (CDG) are a clinically and biochemically heterogenous subgroup of inherited metabolic disorders. Most CDG with abnormal N-glycosylation can be detected by transferrin screening, however, MOGS-CDG escapes this routine screening. Combined with the clinical heterogeneity of reported cases, diagnosing MOGS-CDG can be challenging. Here, we clinically characterize ten MOGS-CDG cases, six previously unreported individuals, showing a phenotype characterized by dysmorphic features, global developmental delay, muscular hypotonia, and seizures in all patients and in a minority vision problems and hypogammaglobulinemia...
January 18, 2023: Journal of Inherited Metabolic Disease