Telomere Biology and Cardiovascular Disease Vascular Cell Senescence: Contribution to Atherosclerosis Stem Cells and the Regeneration of the Aging Cardiovascular System Mechanisms of Cardiovascular Disease in Accelerated Aging Syndromes Mechanisms Underlying Caloric Restriction and Lifespan Regulation: Implications for Vascular Aging
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چکیده
This review focuses on the emerging evidence that attenuation of the production of reactive oxygen species and inhibition of inflammatory pathways play a central role in the antiaging cardiovascular effects of caloric restriction. Particular emphasis is placed on the potential role of the plasma membrane redox system in caloric restriction–induced pathways responsible for sensing oxidative stress and increasing cellular oxidative stress resistance. We propose that caloric restriction increases bioavailability of NO, decreases vascular reactive oxygen species generation, activates the Nrf2/antioxidant response element pathway, inducing reactive oxygen species detoxification systems, exerts antiinflammatory effects, and, thereby, suppresses initiation/progression of vascular disease that accompany aging. (Circ Res. 2008;102:519-528.)
منابع مشابه
Telomere Biology and Cardiovascular Disease Vascular Cell Senescence: Contribution to Atherosclerosis Stem Cells and the Regeneration of the Aging Cardiovascular System Mechanisms of Cardiovascular Disease in Accelerated Aging Syndromes Mechanisms Underlying Caloric Restriction, Lipid Metabolism, and Life Span Regulation
It is well established that cardiovascular repair mechanisms become progressively impaired with age and that advanced age is itself a significant risk factor for cardiovascular disease. Although therapeutic developments have improved the prognosis for those with cardiovascular disease, mortality rates have nevertheless remained virtually unchanged in the last twenty years. Clearly, there is a n...
متن کاملVascular Cell Senescence: Contribution to Atherosclerosis Telomere Biology and Cardiovascular Disease Mechanisms of Cardiovascular Disease in Accelerated Aging Syndromes Progenitor Cell Senescence Mechanisms Underlying Caloric Restriction, Lipid Metabolism, and Life Span Regulation
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Accumulation of cellular damage with advancing age leads to atherothrombosis and associated cardiovascular disease. Ageing is also characterized by shortening of the DNA component of telomeres, the specialized genetic segments located at the end of eukaryotic chromosomes that protect them from end-to-end fusions. By inducing genomic instability, replicative senescence and apoptosis, shortening ...
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