RETRACTED: Quercetin: A flavonol with multifaceted therapeutic applications? (Retracted article. See vol. 180, 2025)

被引:588
作者
D'Andrea, Gabriele [1 ]
机构
[1] Univ Aquila, Dept Biotechnol & Appl Clin Sci, I-67100 Laquila, Italy
关键词
Quercetin; Dietary sources; Metabolism; Therapeutic applications; Toxicity; Drug interactions; INDUCED OXIDATIVE STRESS; POTENTIALLY ANTICARCINOGENIC FLAVONOIDS; ENZYMATICALLY MODIFIED ISOQUERCITRIN; TOPOISOMERASE-II INHIBITION; RANDOMIZED DOUBLE-BLIND; CORONARY-HEART-DISEASE; LIPID-PEROXIDATION; IN-VITRO; DIETARY FLAVONOIDS; CONJUGATED DERIVATIVES;
D O I
10.1016/j.fitote.2015.09.018
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Great interest is currently centered on the biologic activities of quercetin a polyphenol belonging to the class of flavonoids, natural products well known for their beneficial effects on health, long before their biochemical characterization. In particular, quercetin is categorized as a flavonol, one of the five subclasses of flavonoid compounds. Although flavonoids occur as either glycosides (with attached glycosyl groups) or as aglycones, most altogether of the dietary intake concerning quercetin is in the glycoside form. Following chewing, digestion, and absorption sugar moieties can be released from quercetin glycosides. Several organs contribute to quercetin metabolism, including the small intestine, the kidneys, the large intestine, and the liver, giving rise to glucuronidated, methylated, and sulfated forms of quercetin; moreover, free quercetin (such as aglycone) is also found in plasma. Quercetin is now largely utilized as a nutritional supplement and as a phytochemical remedy for a variety of diseases like diabetes/obesity and circulatory dysfunction, including inflammation as well as mood disorders. Owing to its basic chemical structure the most obvious feature of quercetin is its strong antioxidant activity which potentially enables it to quench free radicals from forming resonance-stabilized phenoxyl radicals. In this review the molecular, cellular, and functional bases of therapy will be emphasized taking strictly into account data appearing in the peer-reviewed literature and summarizing the main therapeutic applications of quercetin; furthermore, the drug metabolism and the main drug interaction as well as the potential toxicity will be also spotlighted. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:256 / 271
页数:16
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