succinic semialdehyde dehydrogenase deficiency lschriml DOID:0060175 disease_ontology MESH:C535803 2011-11-08T02:02:12Z A gamma-amino butyric acid metabolism disorder that is characterized by a deficiency of succinic semialdehyde dehydrogenase resulting in elevated levels of gamma-hydroxybutyric acid. 4-hydroxybutyric aciduria OMIM:271980 SSADH gamma-hydroxybutyric aciduria gamma-amino butyric acid metabolism disorder