Effect of atorvastatin on high-density lipoprotein apolipoprotein A-I production and clearance in the New Zealand white rabbit

  • Rashid S
  • Uffelman K
  • Barrett P
 et al. 
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Abstract

BACKGROUND: HMG-CoA reductase inhibitors reduce the incidence of cardiovascular disease predominantly by their LDL-lowering effect. Recently, there has been great interest in the pleiotropic effects of statins, which appear to differ among the various agents in this class. Unlike other statins, atorvastatin exhibits a decline in its HDL-raising effect at higher doses in humans. Whether atorvastatin-mediated alterations in HDL turnover in vivo contribute to this effect has not previously been investigated. We therefore studied the effect of atorvastatin on HDL apolipoprotein (apo) A-I production and clearance in normolipidemic male New Zealand White rabbits. METHODS AND RESULTS: Kinetic studies of HDL-apoA-I radiolabeled with 131I were performed in chow-fed rabbits after 3 weeks of atorvastatin treatment of 5 mg x kg(-1) x d(-1) (n=7) versus placebo-treated rabbits (n=7). Our results showed a significantly (P

Author-supplied keywords

  • Apolipoproteins
  • Atorvastatin
  • Hypercholesterolemia
  • Lipoproteins

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Authors

  • Shirya Rashid

  • Kristine D. Uffelman

  • P. H R Barrett

  • Gary F. Lewis

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