Hydroxybenzoic acid, derived from benzoic acid, possesses a C 6 -C 1 carbon structure, while hydroxycinnamic acids, derived from cinnamic acid, typically occur in plants as simple esters with quinic acid or glucose ( Flavonoids are the most well-known and extensively studied class of polyphenols ( Phenolic acids could donate hydrogen atoms, suggesting their antioxidant properties ( On the other hand, flavonoids contribute to activating defense responses by modulating the production of reactive oxygen species (ROS) under stress conditions ( 2.2 Stilbenes This class of polyphenols represents a distinct group of non-flavonoid phytochemicals characterized by two aromatic rings linked by a methylene bridge ( The abundance of resveratrol in red wine has contributed to hypotheses regarding its potential role in preventing chronic diseases ( 2.3 Lignans Lignans are another class of polyphenols that share structural similarities with phenolic acids ( Lignans are primarily found in vegetables, cereals, and legumes

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Dec 2003;127(12):1603-5
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Z- and S- Score : The Z-score represents the strength of a signal that a monoclonal antibody (MAb) (in combination with a fluorescently-tagged anti-IgG secondary antibody) produces when binding to a particular protein on the HuProtTM array