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Although research in vitro indicates polyphenols are good antioxidants and probably influence the ORAC value, antioxidant effects in vivo are probably negligible or absent. [3] [10] By non-antioxidant mechanisms still undefined, flavonoids and other polyphenols may reduce the risk of cardiovascular disease and cancer. [11]
High-dose supplements of antioxidants may be linked to health risks in some cases, including higher mortality rates. For example, high doses of beta-carotene and vitamin E was found to increase the risk of lung cancer and overall mortality in smokers. [2] High doses of vitamin E may increase risks of prostate cancer and one type of stroke.
In terms of cancer prevention, a 2019 study found that participants with the highest intake of lutein and zeaxanthin had the lowest risk of colorectal cancer. Vitamin A Salmon is rich in vitamin A ...
On the contrary, research indicates that although polyphenols are antioxidants in vitro, antioxidant effects in vivo are probably negligible or absent. [3] [4] [5] By non-antioxidant mechanisms still undefined, polyphenols may affect mechanisms of cardiovascular disease or cancer. [6]
As part of their adaptation from marine life, terrestrial plants began producing non-marine antioxidants such as ascorbic acid (), polyphenols, and tocopherols.The evolution of angiosperm plants between 50 and 200 million years ago resulted in the development of many antioxidant pigments – particularly during the Jurassic period – as chemical defences against reactive oxygen species that ...
Townsend has authored over 150 peer-reviewed publications including journal articles, book chapters, and co-edited a book titled, Redox and Cancer Part A. In addition, she served as Co-Editor for Biomedicine and Pharmacotherapy from 2014 to 2015, and has been the Editor-in-Chief for this journal since 2015.
The FDA issued a ban on the use of red dye No. 3 in food and beverage products and ingested drugs. The synthetic dye has been linked to cancer in animal studies and was banned more than 30 years ...
Moreover, the UPS regulates the degradation of tumor suppressor gene products such as adenomatous polyposis coli in colorectal cancer, retinoblastoma (Rb). and von Hippel–Lindau tumor suppressor (VHL), as well as a number of proto-oncogenes (Raf, Myc, Myb, Rel, Src, Mos, ABL). The UPS is also involved in the regulation of inflammatory responses.