Abstract
Rats treated chronically with the anticancer agent adriamycin (1.5 mg/kg/week × 14 weeks) exhibited cardiac and renal lesions typical of anthracycline toxicity, and had serum hyperlipidemia characterized by 4 to 10 fold elevations in all lipoprotein classes. Heparin-releasable lipoprotein lipase activity measured in perfused heart preparations was decreased 69% in adriamycintreated rats compared to saline-treated controls. Residual (non-heparin-releasable) activity was not significantly different after adriamycin treatment. The decrease in functional cardiac lipoprotein lipase may account, at least in part, for the serum hyperlipidemia observed in adriamycin-treated rats, and might play a role in the development of heart muscle disease.
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