Objective:To investigate the effects of polysacharide MD 1 on eliminating free radical O -· 2,·OH and anti peroxidation on human erythrocyte membrane. Methods:testing the effect of eliminating O -· 2?...Objective:To investigate the effects of polysacharide MD 1 on eliminating free radical O -· 2,·OH and anti peroxidation on human erythrocyte membrane. Methods:testing the effect of eliminating O -· 2?·OH of MD 1 at different concentrations in vitro;testing the influence of MD 1 on peroxidation of free radical of human erythrocyte membrane by fluorescence. Results:Polyssacharide MD 1 could eliminate O -· 2 and·OH(<250 mg/L).compared with the control group( P <0.01). The result also showed that MD 1 could inhibit lipid peroxidation of human erythrocyte membrane,compared with the control group( P <0.01).展开更多
The seasonal and source variations of flavonoid contents in Scutellariae Radix were investigated by using the materials collected at the same place in Liaoning Province, China, during three years, 1990~1992, and in s...The seasonal and source variations of flavonoid contents in Scutellariae Radix were investigated by using the materials collected at the same place in Liaoning Province, China, during three years, 1990~1992, and in seven other provinces in China. Four principal flavonoids in the plant roots, i.e., baicalin, baicalein, wogonin 7 O glucuronide and wogonin were analyzed by using a reversed phase chromatographic system with a chemically bonded ODS silica gel column and phosphate buffer methanol (68:32 and 1:1) as mobile phase. The contents of the four compounds combined in the herb collected at Chengde, Hebei Province are the highest. The results show that the best time for harvesting the roots in Liaoning Province is the end of August.展开更多
文摘Objective:To investigate the effects of polysacharide MD 1 on eliminating free radical O -· 2,·OH and anti peroxidation on human erythrocyte membrane. Methods:testing the effect of eliminating O -· 2?·OH of MD 1 at different concentrations in vitro;testing the influence of MD 1 on peroxidation of free radical of human erythrocyte membrane by fluorescence. Results:Polyssacharide MD 1 could eliminate O -· 2 and·OH(<250 mg/L).compared with the control group( P <0.01). The result also showed that MD 1 could inhibit lipid peroxidation of human erythrocyte membrane,compared with the control group( P <0.01).
文摘The seasonal and source variations of flavonoid contents in Scutellariae Radix were investigated by using the materials collected at the same place in Liaoning Province, China, during three years, 1990~1992, and in seven other provinces in China. Four principal flavonoids in the plant roots, i.e., baicalin, baicalein, wogonin 7 O glucuronide and wogonin were analyzed by using a reversed phase chromatographic system with a chemically bonded ODS silica gel column and phosphate buffer methanol (68:32 and 1:1) as mobile phase. The contents of the four compounds combined in the herb collected at Chengde, Hebei Province are the highest. The results show that the best time for harvesting the roots in Liaoning Province is the end of August.