Abstract
Reactive oxygen species (ROS) generated in the presence of O2 by mitochondria, phagocytic cells, peroxisomes, and cytochrome P450 enzymes under physiological conditions, may play a dual function in the human organism. On the one hand, they participate in cell signal transduction cascades, leading to the activation of some transcription factors responsible for regulating of the expression of genes relevant for cell growth and differentiation. On the other hand, they cause oxidative damage of cellular DNA, protein and lipids, resulting in the initiation or development of numerous diseases such as cancer, cardiovascular diseases, type 2 diabetes mellitus, cataract, rheumatoid arthritis, or different neurodegenerative diseases. Both endogenous compounds (glutathione, ubiquinol, urate, bilirubin) and enzymes (superoxide dismutase, catalase, glutathione peroxidase) are engaged in the detoxification of ROS. In addition, numerous dietary components such as vitamin C, vitamin E, carotenoids, and polyphenols are thought to be involved in the antioxidant defense system. The present review article is focused on the summary and the assessment of research on the impact of dietary antioxidants in the prevention of chronic diseases, particularly cancer and cardiovascular diseases.
Keywords: Carotenoids, polyphenols, reactive oxygen species, vitamin C, vitamin E
Current Medicinal Chemistry
Title: A Review of Natural and Synthetic Antioxidants Important for Health and Longevity
Volume: 17 Issue: 28
Author(s): M. Wojcik, I. Burzynska-Pedziwiatr and L. A. Wozniak
Affiliation:
Keywords: Carotenoids, polyphenols, reactive oxygen species, vitamin C, vitamin E
Abstract: Reactive oxygen species (ROS) generated in the presence of O2 by mitochondria, phagocytic cells, peroxisomes, and cytochrome P450 enzymes under physiological conditions, may play a dual function in the human organism. On the one hand, they participate in cell signal transduction cascades, leading to the activation of some transcription factors responsible for regulating of the expression of genes relevant for cell growth and differentiation. On the other hand, they cause oxidative damage of cellular DNA, protein and lipids, resulting in the initiation or development of numerous diseases such as cancer, cardiovascular diseases, type 2 diabetes mellitus, cataract, rheumatoid arthritis, or different neurodegenerative diseases. Both endogenous compounds (glutathione, ubiquinol, urate, bilirubin) and enzymes (superoxide dismutase, catalase, glutathione peroxidase) are engaged in the detoxification of ROS. In addition, numerous dietary components such as vitamin C, vitamin E, carotenoids, and polyphenols are thought to be involved in the antioxidant defense system. The present review article is focused on the summary and the assessment of research on the impact of dietary antioxidants in the prevention of chronic diseases, particularly cancer and cardiovascular diseases.
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Wojcik M., Burzynska-Pedziwiatr I. and Wozniak A. L., A Review of Natural and Synthetic Antioxidants Important for Health and Longevity, Current Medicinal Chemistry 2010; 17 (28) . https://dx.doi.org/10.2174/092986710792231950
DOI https://dx.doi.org/10.2174/092986710792231950 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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