Enhanced oxidizability of ubiquinol and alpha-tocopherol during lovastatin treatment

FEBS Lett. 1997 Jun 30;410(2-3):254-8. doi: 10.1016/s0014-5793(97)00609-1.

Abstract

A double-blinded, placebo-controlled cross-over trial was carried out with 27 hypercholesterolemic men with coronary heart disease. During the 6-week treatment period lovastatin (60 mg/day) decreased fasting serum LDL cholesterol by 45%, LDL phosphorus by 38% and apoB by 33%. Ubiquinol content diminished by 13% as measured per LDL phosphorus. When LDL was oxidized ex vivo with AMVN both LDL ubiquinol and alpha-tocopherol were exhausted faster after lovastatin treatment compared to placebo, by 24% (P < 0.005) and 36% (P < 0.0001), respectively. Lag time in copper-induced oxidation of LDL decreased by 7% (P < 0.01). This suggests diminished antioxidant-dependent resistance of LDL to the early phase of oxidative stress.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Anticholesteremic Agents / therapeutic use*
  • Antioxidants / administration & dosage*
  • Apolipoproteins A / blood
  • Apolipoproteins B / blood
  • Cholesterol / blood
  • Cholesterol, LDL / blood
  • Copper
  • Coronary Disease / complications*
  • Coronary Disease / metabolism
  • Cross-Over Studies
  • Double-Blind Method
  • Humans
  • Hypercholesterolemia / blood
  • Hypercholesterolemia / complications
  • Hypercholesterolemia / drug therapy*
  • Lovastatin / therapeutic use*
  • Male
  • Middle Aged
  • Oxidation-Reduction
  • Triglycerides / blood
  • Ubiquinone / analogs & derivatives*
  • Ubiquinone / blood
  • Ubiquinone / chemistry
  • Vitamin E / blood*
  • Vitamin E / chemistry

Substances

  • Anticholesteremic Agents
  • Antioxidants
  • Apolipoproteins A
  • Apolipoproteins B
  • Cholesterol, LDL
  • Triglycerides
  • Ubiquinone
  • Vitamin E
  • Copper
  • Cholesterol
  • Lovastatin
  • ubiquinol