期刊
TOXICOLOGY AND APPLIED PHARMACOLOGY
卷 223, 期 2, 页码 173-179出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.taap.2007.05.013
关键词
statins; hepatotoxicity; transaminitis; ubiquinone; oxidative stress
Lowering of low-density lipoprotein cholesterol is well achieved by 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors (statins). Statins inhibit the conversion of HMG-CoA to mevalonate, a precursor for cholesterol and coenzyme Q10 (CoQ(10)). In HepG2 cells, simvastatin decreased mitochondrial CoQ(10) levels, and at higher concentrations was associated with a moderately higher degree of cell death, increased DNA oxidative damage and a reduction in ATP synthesis. Supplementation of CoQ(10), reduced cell death and DNA oxidative stress, and increased ATP synthesis. It is suggested that CoQ(10) deficiency plays an important role in statin-induced hepatopathy, and that CoQ(10) supplementation protects HepG2 cells from this complication. (C) 2007 Elsevier Inc. All rights reserved.
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