The research group investigates inborn errors of metabolism, in particular hepatic glycogen storage disorders. Special interest concerns their pathophysiology, e.g. with modern methods of metabolome analysis. Furthermore, the influence of the type and quality of therapy on the metabolic changes and the development or course of typical long-term complications is being examined. The research group maintains the Swiss registry for hepatic glycogen storage diseases as a basis for obtaining a more precise understanding of the course of the disease, with the aim to improve the quality of patient care.