ISSUES Polyphenolic compounds, especially flavonoids, are known as the most common chemical class of phytochemicals, which possess a multiple range of health-promoting effects. Flavonoids are ubiquitous in nature. They are also present in food, providing an essential link between diet and prevention of several diseases. APPROACH Chrysin (CH), a natural flavonoid, was commonly found in propoli...

We assessed the effects of 24 flavonoid derivatives, reported as anti-inflammatory, on lysosomal enzyme secretion and arachidonic acid release in rat neutrophils. Amentoflavone, quercetagetin-7-O-glucoside, apigenin, fisetin, kaempferol, luteolin and quercetin were the most potent inhibitors of beta-glucuronidase and lysozyme release. The first compound was also able to inhibit basal release. T...

Three flavonoidal aglycones viz; F1 (Chrysin), F2 (Kampferol) and novel F3( 3,7dimethylether quercetin), were isolated from acetone wash of fresh leaves of Datura stramomium L. Isolated compounds were identified on the basis of their physico-chemical properties, Co-TLC, H-NMR, C-NMR and CIMS specrtum. Significant cytotoxic activity against three tumor cell lines (liver, cervix & breast), was re...