zogenes are differentiated cells capable of the biosynthesis of secondary metabolites. Hairy roots also have a high rate of proliferation. They are therefore expected to become widely used culture systems for the production of useful secondary metabolites and for studies on the production of biologically active compounds and transformation of organic substrates. We reported the production of a ...

produces the cardiac slowing, because cardiac glycosides can produce bradycardia even after bilateral severance of vagus nerves or under the effect of atropine (3, 4). Gold et al. (5, 6) suggested a direct bradycardiac action of cardiac glycosides on the heart muscle. However, the results on the effect of cardiac glycosides on the heart rate are still con troversial in the experiments with isol...

The present study deals with the cytotoxic activity of cardiac glycosides of Calotropis gigantea (L.) W.T.Aiton; on breast cancer cell line MCF-7. Qualitative screening of methenaloic extract of leaves of Calotropis gigantea for secondary metabolites showed the presence of phenolics, alkaloids, coumarins, saponins, tannins and glycosides. Glycosides were selected for detailed chemical analysis,...

High performance liquid chromatography (HPLC) with diode array detection (DAD) and electrospray ionization tandem mass spectrometry (ESI/MS/MS) was used to analyze the main components in the methanol extract of Fructus Aurantii (FA) and the metabolites in rat biological samples after oral administration of the methanol extract of FA. There were 31 constituents identified in the extract of FA in...

BACKGROUND The isoflavones daidzein and genistein occur naturally in most soyfoods, conjugated almost exclusively to sugars. Controversy exists regarding the extent of bioavailability of isoflavone glycosides, and the mechanism of intestinal absorption of isoflavones in humans is unclear. Evidence from intestinal perfusion and in vitro cell culture studies indicates that isoflavone glycosides a...

Five new triterpene glycosides, liouvillosides A1 (1), A2 (2), A3 (3), B1 (4), and B2 (5), have been isolated from the Antarctic sea cucumber Staurocucumis liouviellei along with the known liouvilloside A(6), isolated earlier from the same species, and hemoiedemosides A (7) and B (8), isolated earlier from the Patagonian sea cucumber Hemioedema spectabilis. The isolation was carried out using a...

Lotus plumule, the embryo of seed sacred lotus (Nelumbo nucifera), contains a high accumulation secondary metabolites including flavonoids and possesses important pharmaceutical value. Flavonoid C-glycosides, which accumulate exclusively in have attracted considerable attention recent decades due to their unique chemical structure special bioactivities. As well as mono-C-glycosides, plumule als...