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Long-Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiency

Abstract

ABSTRACT: We describe the clinical features and biochemical findings of two patients with long-chain 3-hy-droxyacyl-CoA dehydrogenase deficiency. Both children presented with an acute metabolic crisis. Both had hypo-glycemia and excreted even-chain unsubstituted dicarbox-ylic 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-hy-droxyacyl-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.

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Jackson, S., Bartlett, K., Land, J. et al. Long-Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiency. Pediatr Res 29, 406–411 (1991). https://doi.org/10.1203/00006450-199104000-00016

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