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Antidiabetic effect of an active fraction extracted from dragon's blood (Dracaena Cochinchinensis)
Hui-Juan Gu1, Jing-Ci Lv, Ke-Lan Yong
1School of Life Sciences, Shanghai University, Shanghai, China.
Abstract:
The active fraction extracted from dragon's blood displayed an inhibitory effect on alpha-glucosidase activity with an IC50 of 0.152 microg/mL, which is nearly half of the crude material. Its inhibition on alpha-glucosidase was noncompetitive. In addition, when this fraction was orally administered to mice dosed with Acarbose (20 mg/kg), the active fraction (100, 300, 500 mg/kg) significantly suppressed increase of blood glucose levels after sucrose loading in a dose-dependent manner. These results suggest that this extract from dragon's blood exerts an anti-diabetic effect by suppressing intestinal carbohydrate absorption and thereby reducing the postprandial increase of blood glucose.
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