Advances in research on bioactivities and structure-activity relationships of the flavonoids

Flavonoids are a class of polyphenolic compounds that can be found ubiquitously in plants and exhibit a wide range of bioactivities,such as anti-tumor,anti-inflammatory,anti-bacterial,anti-viral activities,and flavonoids can also be used in Alzheimer’s disease therapy and blood lipid regulation.Currently,more and more researches are focused on the flavonoids.In this article,progress in research on bioactivities and structure-activity relationships of the flavonoids are reviewed briefly and preliminary discussions are made on some issues.