title: Long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency.
abstract: We describe the clinical features and biochemical findings of two patients with long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency. Both children presented with an acute metabolic crisis. Both had hypoglycemia and excreted even-chain unsubstituted dicarboxylic and 3-hydroxy-dicarboxylic acids in the urine. Measurement of the enzymes of fatty acid oxidation in cultured skin fibroblasts showed low activity of long-chain 3-hydroxyacyl-CoA dehydrogenase, but normal activity of short-chain 3-hydroxyacyl-CoA dehydrogenase. The defect was further characterized by immunoprecipitating the short-chain enzyme using monospecific antibodies. It is probably inherited as an autosomal recessive trait, inasmuch as intermediate enzyme activity was found in the fibroblasts from the parents of one child.
authors.affiliation: Department of Clinical Neuroscience, University of Newcastle upon Tyne, United Kingdom.
authors.forename: S
authors.initials: S
authors.lastname: Jackson
authors.forename: K
authors.initials: K
authors.lastname: Bartlett
authors.forename: J
authors.initials: J
authors.lastname: Land
authors.forename: E R
authors.initials: ER
authors.lastname: Moxon
authors.forename: R J
authors.initials: RJ
authors.lastname: Pollitt
authors.forename: J V
authors.initials: JV
authors.lastname: Leonard
authors.forename: D M
authors.initials: DM
authors.lastname: Turnbull
mesh_terms: D015094:3-Hydroxyacyl CoA Dehydrogenases / Q000172:deficiency* / Q000235:genetics; D000138:Acidosis / Q000209:etiology; D006332:Cardiomegaly / Q000209:etiology; D004032:Diet; D005234:Fatty Liver / Q000209:etiology; D005260:Female; D005808:Genes, Recessive; D006801:Humans; D007003:Hypoglycemia / Q000209:etiology; D007223:Infant; D050356:Lipid Metabolism
chemical_list: D015094:3-Hydroxyacyl CoA Dehydrogenases