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  • Title: Carnitine palmitoyltransferase II deficiency with normal carnitine palmitoyltransferase I in skeletal muscle and leucocytes.
    Author: Scholte HR, Jennekens FG, Bouvy JJ.
    Journal: J Neurol Sci; 1979 Jan; 40(1):39-51. PubMed ID: 762593.
    Abstract:
    Deficiency of carnitine palmitoyltransferase II (CPT II), was found to be the cause of the syndrome of muscle pain and myoglobinuria following strenuous exercise in an otherwise healthy young man. During fasting, serum creatine kinase remained low and ketogenesis was normal. The clearance of a fat emulsion and the activity of extrahepatic lipoprotein lipase was lowered, while the hepatic lipoprotein lipase was normal. A skeletal muscle biopsy did not show abnormal lipid storage. CPT II was deficient in skeletal muscle and leucocytes, while CPT I activity was normal and exhibited normal kinetic properties. CPT I has a higher affinity for palmitoylcarnitine than CPT II, and is more inhibited at increasing palmitoylcarnitine concentrations. In erythrocytes only CPT I is present.
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