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文献信息

Xanthohumol, a Prenylated Chalcone from Beer Hops, Acts as an α-Glucosidase Inhibitor in Vitro

期刊名:J AGR FOOD CHEM.
文献编号:
文献地址: http://pubs.acs.org/doi/abs/10.1021/jf500426z
发表日期:2014 May.26.


Xanthohumol, a Prenylated Chalcone from Beer Hops, Acts as an α-Glucosidase Inhibitor in Vitro

Ming Liu, Hua Yin, Ge Liu, Jianjun Dong, Zhonghua Qian, and Jinlai Miao,

Abstract

Xanthohumol (XN) is a unique prenylated flavonoid in hops (Humulus lupulus L.) and beer. XN alleviates hyperglycemia and has potential usage in the treatment of type 2 diabetes. In the present study, a series of in vitro experiments were performed to investigate whether XN was an effective inhibitor of α-glucosidase. The results showed that XN inhibited α-glucosidase in a reversible and noncompetitive manner, with an IC50 value of 8.8 μM and that XN inhibited the release of glucose from the maltose in the apical side of the Caco-2 cell monolayer. Fluorescence and circular dichroism spectra results indicated that XN directly bound to α-glucosidase and induced minor conformational

 Materials XN (purity >98%) was purchased from Chengdu Biopurify Phytochemicals Ltd. (Chengdu, China).