title: Glycogen storage disease diagnosed in adults.
abstract: Glycogen storage diseases are usually identified in childhood. We present the clinical, biochemical and histological features of 10 patients first diagnosed in adult life. Five had glycogen storage disease type 1a, one type 1c, two type IX, and in two patients there were previously unreported abnormalities of hepatic glucose-6-phosphatase system activity. Of the latter, one patient had an inhibitor of liver glucose-6-phosphatase (pseudo-1b glycogen storage disease) the other having abnormal glucose-6-phosphatase activity and microsomal pyrophosphate transport. A glucagon test is suggested as a useful screening procedure. Glycogen storage disease should be considered in adults with symptoms suggesting hypoglycaemia.
authors.affiliation: Department of Medicine, Ninewells Hospital and Medical School, University of Dundee.
authors.forename: J S
authors.initials: JS
authors.lastname: Pears
authors.forename: R T
authors.initials: RT
authors.lastname: Jung
authors.forename: D
authors.initials: D
authors.lastname: Hopwood
authors.forename: I D
authors.initials: ID
authors.lastname: Waddell
authors.forename: A
authors.initials: A
authors.lastname: Burchell
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D005934:Glucagon; D005951:Glucose Tolerance Test; D005952:Glucose-6-Phosphatase / Q000378:metabolism; D006003:Glycogen / Q000378:metabolism; D006008:Glycogen Storage Disease / Q000175:diagnosis* / Q000378:metabolism; D006801:Humans; D008099:Liver / Q000378:metabolism / Q000648:ultrastructure; D008854:Microscopy, Electron; D008862:Microsomes, Liver / Q000378:metabolism; D008875:Middle Aged; D009132:Muscles / Q000201:enzymology; D010764:Phosphorylase Kinase / Q000378:metabolism
chemical_list: D006003:Glycogen; D005934:Glucagon; D010764:Phosphorylase Kinase; D005952:Glucose-6-Phosphatase