In order to study the effects of Ampelopsis grossedentata on endogenous cholesterol biosynthesis and the effects of reducing blood lipid in hyperlipidemia rats,extraction of flavonoids from Ampelopsis grossedentata by...In order to study the effects of Ampelopsis grossedentata on endogenous cholesterol biosynthesis and the effects of reducing blood lipid in hyperlipidemia rats,extraction of flavonoids from Ampelopsis grossedentata by using ethanol(TFAG),and the effects of TFAG on intracellular cholesterol synthesis were detected by amphotericin B-cell model;SD hyperlipidemia rat model was established by feeding high fat diet.A formulated medicine called Xuezhikang was used as a positive control,and TFAG of different doses were administered to the stomach for 30 d continuously to measure the indexes of heart,liver tissue homogenate and serum;part of the liver was taken for pathological observation.The results showed that TFAG could significantly inhibit the synthesis of cholesterol in cells.TFAG of different doses could significantly reduce the content of TC and TG in serum of hyperlipidemia rats,and increase the content of HDL;TC and TG in heart and liver were also decreased;besides,it could increase the content of SOD,CAT and GSH in the liver of hyperlipidemia rats,and reduce the content of MDA.The results of pathological section showed that TFAG could improve the damage degree of hepatocytes in hyperlipidemia rats,and the effect of high dose group was similar to that of Xuezhikang group.In general,TFAG has good antioxidant and reducing blood lipid effects,and can effectively inhibit liver steatosis.展开更多
目的采用HPLC法测定傣药雅解沙把中巴马汀、小檗碱的含量。方法色谱柱为TSK gel ODS-100V(250 mm×4.6mm,5μm),流动相为乙腈-0.4%磷酸溶液(32∶68),检测波长345 nm,流速l m L·min-1,柱温40℃。结果巴马汀、小檗碱的线性...目的采用HPLC法测定傣药雅解沙把中巴马汀、小檗碱的含量。方法色谱柱为TSK gel ODS-100V(250 mm×4.6mm,5μm),流动相为乙腈-0.4%磷酸溶液(32∶68),检测波长345 nm,流速l m L·min-1,柱温40℃。结果巴马汀、小檗碱的线性范围分别为5.160~82.60、2.260~36.20μg·m L-1,平均回收率分别为99.37%、97.15%,RSD分别为1.12%、2.51%;雅解沙把中巴马汀、小檗碱的含量分别约为1.49、0.50 mg·g-1。结论所用方法简便、灵敏、重复性好,可用于测定雅解沙把中的两种生物碱。展开更多
文摘In order to study the effects of Ampelopsis grossedentata on endogenous cholesterol biosynthesis and the effects of reducing blood lipid in hyperlipidemia rats,extraction of flavonoids from Ampelopsis grossedentata by using ethanol(TFAG),and the effects of TFAG on intracellular cholesterol synthesis were detected by amphotericin B-cell model;SD hyperlipidemia rat model was established by feeding high fat diet.A formulated medicine called Xuezhikang was used as a positive control,and TFAG of different doses were administered to the stomach for 30 d continuously to measure the indexes of heart,liver tissue homogenate and serum;part of the liver was taken for pathological observation.The results showed that TFAG could significantly inhibit the synthesis of cholesterol in cells.TFAG of different doses could significantly reduce the content of TC and TG in serum of hyperlipidemia rats,and increase the content of HDL;TC and TG in heart and liver were also decreased;besides,it could increase the content of SOD,CAT and GSH in the liver of hyperlipidemia rats,and reduce the content of MDA.The results of pathological section showed that TFAG could improve the damage degree of hepatocytes in hyperlipidemia rats,and the effect of high dose group was similar to that of Xuezhikang group.In general,TFAG has good antioxidant and reducing blood lipid effects,and can effectively inhibit liver steatosis.
文摘目的采用HPLC法测定傣药雅解沙把中巴马汀、小檗碱的含量。方法色谱柱为TSK gel ODS-100V(250 mm×4.6mm,5μm),流动相为乙腈-0.4%磷酸溶液(32∶68),检测波长345 nm,流速l m L·min-1,柱温40℃。结果巴马汀、小檗碱的线性范围分别为5.160~82.60、2.260~36.20μg·m L-1,平均回收率分别为99.37%、97.15%,RSD分别为1.12%、2.51%;雅解沙把中巴马汀、小檗碱的含量分别约为1.49、0.50 mg·g-1。结论所用方法简便、灵敏、重复性好,可用于测定雅解沙把中的两种生物碱。