α-Glucosidase inhibition and antihyperglycemic activity of flavonoids from Ampelopsis grossedentata and the flavonoid derivatives
作者:Jia Chen、Yuechan Wu、Jianwei Zou、Kun Gao
DOI:10.1016/j.bmc.2016.02.018
日期:2016.4
known major components (1–3) were isolated by recrystallization process and six new derivatives (4–9) were obtained by etherification of the bioactive flavonoid. All compounds were evaluated for their inhibitory activities against α-glucosidase (from Saccharomyces cerevisiae). As a result, compound 9 showed a significant α-glucosidase inhibitory activity with IC50 value of 9.3 μM and acted as a competitive
干燥的叶子和茎藤茶已被用来作为保健茶和草药数百年来,在中国。该研究的目的是在猪牙菌及其衍生物中最丰富的成分中寻找新型的α-葡萄糖苷酶抑制剂。三种已知的主要组分(1 - 3)通过重结晶过程和六个新的衍生物(隔绝4 - 9由生物活性的类黄酮的醚化获得)。评价所有化合物对α-葡糖苷酶(来自酿酒酵母)的抑制活性。结果,化合物9表现出显着的α-葡萄糖苷酶抑制活性,IC 50值为9.3μM,并作为竞争性抑制剂,抑制常数(K i)值为10.3μM。以50mg / kg的剂量口服施用化合物9显着降低正常和链脲佐菌素(STZ)诱导的糖尿病小鼠的餐后血糖水平。此外,化合物9显着降低了STZ诱导的糖尿病小鼠的空腹血糖水平。