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|Title:||Reduced mitochondrial coenzyme Q10 levels in HepG2 cells treated with high-dose simvastatin: A possible role in statin-induced hepatotoxicity?||Authors:||Tavintharan, S.
|Issue Date:||2007||Citation:||Tavintharan, S., Lim, S.C., Ong, C.N., Jeyaseelan, K., Sivakumar, M., Sum, C.F. (2007). Reduced mitochondrial coenzyme Q10 levels in HepG2 cells treated with high-dose simvastatin: A possible role in statin-induced hepatotoxicity?. Toxicology and Applied Pharmacology 223 (2) : 173-179. ScholarBank@NUS Repository.||Abstract:||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 (CoQ10). In HepG2 cells, simvastatin decreased mitochondrial CoQ10 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 CoQ10, reduced cell death and DNA oxidative stress, and increased ATP synthesis. It is suggested that CoQ10 deficiency plays an important role in statin-induced hepatopathy, and that CoQ10 supplementation protects HepG2 cells from this complication. © 2007 Elsevier Inc. All rights reserved.||Source Title:||Toxicology and Applied Pharmacology||URI:||http://scholarbank.nus.edu.sg/handle/10635/28907||ISSN:||0041008X
|Appears in Collections:||Staff Publications|
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