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Editorial |
Unilabs, Unilabs Clinical Pathology, Bewlay House, 32 Jamestown Rd., London NW1 7BY, UK
Subnormal activity of creatine kinase (CK, ATP: creatine N-phosphotransferase, EC 2.7.3.2) in serum has been observed in a variety of clinical conditions. Subnormal activity may be found as a consequence of diminished efflux of the muscle enzyme into serum from reduced physical activity caused by illness or advanced age or may result from reduced muscle mass accompanying muscle wasting or cachectic states. Low serum CK values reported in acute viral hepatitis have been explained on the basis of reduced physical activity because these patients have been confined to bed for therapeutic reasons or because of the severity of the illness (1). Low CK activities in patients with alcoholic liver disease (2) have been considered to reflect the reduced muscle mass commonly observed in alcoholics.
Reduced serum CK activity has also been observed in patients with
connective tissue
References
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