Definition
Polyphenols are plant substances possessing more than one aromatic ring bearing one or more hydroxyl groups, including their functional derivatives, and may occur as unconjugated aglycones or as conjugated with sugars, organic acids, amino acids, or lipids. Examples of polyphenols are epigallocatechin gallate, genistein, resveratrol, quercetin, and rutin. Common dietary sources rich in polyphenols include tea, soybean, berries, chocolate, wine, apple and orange juices, black beans, tomato, sweet peppers, broccoli, and onion.
Characteristics
Polyphenols consist of a family of diverse compounds, which comprises chalcones (butein), dihydrochalcones (tephropurpurin), flavanones (naringenin), flavones (apigenin), dihydroflavonols (engeletin), flavonols (quercetin), flavanols (catechins), isoflavones(genistein), proanthocyanidins (propelargonidins), and anthocyanidins (delphinidin). Their main physiological function is as antioxidants. Therefore, a long-term consumption of a...
Keywords
- Cell Signaling Pathway
- Epigallocatechin Gallate
- Dietary Polyphenol
- Inhibit Tumor Invasion
- Modulate Cell Signaling
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References
Fresco P, Borges F, Diniz C et al (2006) New insights on the anticancer properties of dietary polyphenols. Med Res Rev 26:747–766
Gardner EJ, Ruxton CH, Leeds AR (2007) Black tea – helpful or harmful? A review of the evidence. Eur J Clin Nutr 61:3–18
Thomasset SC, Berry DP, Garcea G et al (2007) Dietary polyphenolic phytochemicals – promising cancer chemopreventive agents in humans? A review of their clinical properties. Int J Cancer 120(3):451–458
World Cancer Research Fund, American Institute for Cancer Research (2007) Food, nutrition, physical activity, and the prevention of cancer: a global perspective. AICR, Washington, DC
See Also
(2012) Antioxidant Capacity. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 216. doi: 10.1007/978-3-642-16483-5_329
(2012) Carcinogen. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 644. doi: 10.1007/978-3-642-16483-5_839
(2012) Leukoplakia. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2028. doi: 10.1007/978-3-642-16483-5_3332
(2012) MAPK. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2167. doi: 10.1007/978-3-642-16483-5_3532
(2012) Mitogen-Activated Protein Kinase. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 2336. doi: 10.1007/978-3-642-16483-5_3770
(2012) Scavenge Free Radicals. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 3340. doi: 10.1007/978-3-642-16483-5_5166
(2012) Xanthine Oxidase. In: Schwab M (ed) Encyclopedia of Cancer, 3rd edn. Springer Berlin Heidelberg, p 3963. doi: 10.1007/978-3-642-16483-5_6270
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de Mejia, E. (2015). Polyphenols. In: Schwab, M. (eds) Encyclopedia of Cancer. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27841-9_4677-2
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DOI: https://doi.org/10.1007/978-3-642-27841-9_4677-2
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Publisher Name: Springer, Berlin, Heidelberg
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