has material basis in germline mutation in GYS2 disorder of glycogen metabolism glycogen storage disorder due to hepatic glycogen synthase deficiency https://github.com/monarch-initiative/mondo/issues/4985 https://www.malacards.org/card/glycogen_storage_disease_0_liver https://www.malacards.org/card/glycogen_storage_disorder_due_to_hepatic_glycogen_synthase_deficiency glycogen storage disease type 0, liver NANDO:1200824 glycogen storage disease type 0a hypoglycemia with deficiency of glycogen synthetase in the liver GARD:0002513 GSD type 0a hepatic glycogen synthase deficiency NANDO:2200537 liver glycogen storage disease due to glycogen synthase deficiency glycogen storage disease 0, liver glycogen storage disease due to liver glycogen synthase deficiency Glycogen synthetase deficiency, or glycogen storage disease (GSD) type 0, is a genetically inherited anomaly of glycogen metabolism and a form of GSD characterized by fasting hypoglycemia. This is not a glycogenosis, strictly speaking, as the enzyme deficiency decreases glycogen reserves. Orphanet:2089 NANDO:2201151 UMLS:C1855861 MESH:C565485 NANDO:1200838 SCTID:237964009 MONDO:0009414 GSD0A liver GSD 0 OMIM:240600 glycogenosis type 0a GSD due to hepatic glycogen synthase deficiency glycogen storage disease due to glycogen synthase deficiency of liver glycogen synthase deficiency MEDGEN:343430 glycogen storage disease due to hepatic glycogen synthase deficiency