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Lookup NU author(s): Professor Thomas von Zglinicki, Professor Alexander Burkle, Emeritus Professor Thomas Kirkwood
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Ageing is highly complex, involving multiple mechanisms at different levels. Nevertheless, recent evidence suggests that several of the most important mechanisms are linked via endogenous stress-induced DNA damage caused by reactive oxygen species (ROS). Understanding how such damage contributes to age-related changes requires that we explain how these different mechanisms relate to each other and potentially interact. In this article, we review the contributions of stress-induced damage to cellular DNA through (i) the role of damage to nuclear DNA and its repair mediated via the actions of poly(ADP-ribose) polymerase-1, (ii) the role of damage to telomeric DNA and its contribution to telomere-driven cell senescence, and (iii) the role of damage to and the accumulation of mutations in mitochondrial DNA. We describe how an integrative approach to studying these mechanisms, coupled with computational modelling, may be of considerable importance in resolving some of the complexity of cellular ageing. Copyright © 2001 Elsevier Science Inc.
Author(s): Von Zglinicki T, Burkle A, Kirkwood TBL
Publication type: Review
Publication status: Published
Journal: Experimental Gerontology
Year: 2001
Volume: 36
Issue: 7
Pages: 1049-1062
Print publication date: 01/01/2001
ISSN (print): 0531-5565
ISSN (electronic): 1873-6815
URL: http://dx.doi.org/10.1016/S0531-5565(01)00111-5
DOI: 10.1016/S0531-5565(01)00111-5
PubMed id: 11404050