Abstract Title:

Effects of CoQ10 supplementation on plasma lipoprotein lipid, CoQ10 and liver and muscle enzyme levels in hypercholesterolemic patients treated with atorvastatin: a randomized double-blind study.

Abstract Source:

Atherosclerosis. 2007 Dec;195(2):e182-9. Epub 2007 Aug 6. PMID: 17681347

Abstract Author(s):

Hiroshi Mabuchi, Atsushi Nohara, Junji Kobayashi, Masa-aki Kawashiri, Shoji Katsuda, Akihiro Inazu, Junji Koizumi,

Article Affiliation:

Department of Lipidology, Kanazawa University Graduate School of Medical Science, Takara-machi 13-1, Kanazawa 920-8641, Japan. mabuchi@med.kanazawa-u.ac.jp

Abstract:

The long-term efficacy and safety of HMG-CoA reductase inhibitors (statins) have been established in large multicenter trials. Inhibition of this enzyme, however, results in decreased synthesis of cholesterol and other products downstream of mevalonate, such as CoQ10 or dolichol. This was a randomized double-blind, placebo-controlled study that examined the effects of CoQ10 and placebo in hypercholesterolemic patients treated by atorvastatin. Eligible patients were given 10mg/day of atorvastatin for 16 weeks. Half of the patients (n=24) were supplemented with 100mg/day of CoQ10, while the other half (n=25) were given the placebo. Serum LDL-C levels in the CoQ10 group decreased by 43%, while in the placebo group by 49%. The HDL-C increment was more striking in the CoQ10 group than in the placebo group. All patients showed definite reductions of plasma CoQ10 levels in the placebo group, by 42%. All patients supplemented with CoQ10 showed striking increases in plasma CoQ10 by 127%. In conclusion atorvastatin definitely decreased plasma CoQ10 levels and supplementation with CoQ10 increased their levels. These changes in plasma CoQ10 levels showed no relation to the changes in serum AST, ALT and CK levels. Further studies are needed, however, for the evaluation of CoQ10 supplementation in statin therapy.

Study Type : Human Study

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