Micronutrient special issue: coenzyme Q(10) requirements for DNA damage prevention
- PMID: 21964355
- DOI: 10.1016/j.mrfmmm.2011.09.004
Micronutrient special issue: coenzyme Q(10) requirements for DNA damage prevention
Abstract
Coenzyme Q(10) (CoQ(10)) is an essential component for electron transport in the mitochondrial respiratory chain and serves as cofactor in several biological processes. The reduced form of CoQ(10) (ubiquinol, Q(10)H(2)) is an effective antioxidant in biological membranes. During the last years, particular interest has been grown on molecular effects of CoQ(10) supplementation on mechanisms related to DNA damage prevention. This review describes recent advances in our understanding about the impact of CoQ(10) on genomic stability in cells, animals and humans. With regard to several in vitro and in vivo studies, CoQ(10) provides protective effects on several markers of oxidative DNA damage and genomic stability. In comparison to the number of studies reporting preventive effects of CoQ(10) on oxidative stress biomarkers, CoQ(10) intervention studies in humans with a direct focus on markers of DNA damage are limited. Thus, more well-designed studies in healthy and disease populations with long-term follow up results are needed to substantiate the reported beneficial effects of CoQ(10) on prevention of DNA damage.
Copyright © 2011 Elsevier B.V. All rights reserved.
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