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Ortho-thioquinones and mediterranean diet: The sulfur connection

✍ Scribed by Stefano Menichetti; Chiara Pagliuca; Caterina Viglianisi

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
392 KB
Volume
18
Category
Article
ISSN
1042-7163

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✦ Synopsis

Abstract

The antioxidant activity of several hydroxy‐4‐thiaflavanes was determined either by using the 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) bleaching method or by measuring their ability to inhibit the autooxidation of styrene or cumene. Based on this, the role played by the number and position of hydroxy groups and by the oxidation state of sulfur was rationalized and quantified, providing good indications for optimizing the structural features required to make these “double‐faced” antioxidants perform at their best. The ability of selected 4‐thiaflavanes to protect DNA by oxidative damage in vitro is also discussed. © 2007 Wiley Periodicals, Inc. 18:489–499, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20338

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