A Novel Insulin-releasing Substance, Phanoside, from the Plant Gynostemma pentaphyllum

Authors: Åke Norberg, Nguyen Khanh Hoa, Edvards Liepinsh, Dao Van Phan, Nguyen Duy Thuan, Hans Jörnvall, Rannar Sillard and Claes-Göran Östenson Source: THE JOURNAL OF BIOLOGICAL CHEMISTRY  Vol. 279, No. 40, Issue of October 1, pp. 41361–41367, 2004 Abstract: Extracts from Gynostemma pentaphyllum Makino (Cucurbitaceae), a Southeast Asian herb, has been reported to affect numerous activities resulting in antitumor, cholesterol-lowering, immunopotentiating, antioxidant, and hypoglycemic effects. We have isolated one active compound by ethanol extraction, distribution in n-butyl alcohol/water, solid phase extraction/separation, and several rounds of reverse phase high pressure liquid chromatography. We…

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