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Glyceride metabolism in the myopathic hamster

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Lipids

Abstract

Analysis of plasma lipids of 30- and 185-day-old BIO 82.62 myopathic hamsters and age-matched normal controls revealed a decrease in only the concentration of cholesteryl esters of 185-day-old diseased animals. Measurement of lipoprotein lipase (LPL) activity in heart, muscle, and adipose tissue showed no difference between the activity of the enzyme in the heart and muscle of the cardiomyopathic hamsters and that of the age-matched controls. In adipose tissue, however, LPL activity was depressed in the diseased animals in both age groups. No difference was found in the activity of hormone sensitive lipase. Incorporation of sn[U-14C] glycerol-3-phosphate into total lipids was found to be depressed in homogenates of heart, muscle, and adipose tissue but unchanged in liver homogenates of diseased animals. It was concluded that the decrease in the capacity to synthesize glycerides, rather than limiting substrate concentrations, could be the cause of the decrease in the lipid content in some tissues of the cardiomyopathic hamster.

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Authors and Affiliations

  1. Biochemistry Department, School of Medicine, East Carolina University, 27834, Greenville, NC

    Hisham A. Barakat, Edward B. Tapscott & Carlton Smith

Authors
  1. Hisham A. Barakat
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  2. Edward B. Tapscott
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  3. Carlton Smith
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Barakat, H.A., Tapscott, E.B. & Smith, C. Glyceride metabolism in the myopathic hamster. Lipids 12, 550–555 (1977). https://doi.org/10.1007/BF02533380

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  • DOI: https://doi.org/10.1007/BF02533380

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