3 resultaten
OBJECTIVE
To investigates the mechanism of hypooglycemic effect of conduritol A of stems of Gymnema sylvestre.
METHODS
Fourteen days later after administration, observation is taken on the change of these mice and rats weight, the FBG, TG, CHO, SOD, MDA, INS, TNF in serum were also detected with
OBJECTIVE
To study on the chemical constituents from the stem of Gymnema sylvestre.
METHODS
The constituents were extracted by percolation with ethanol. Then the extract was separated by systemic solvent separation methods. The part of n-butanol extract was isolated and purified by macroporous
OBJECTIVE
To study the chemical constituents of stems of Gymnema sylvestre (Retz.) Schult.
METHODS
Chromatographic techniques using silica gel, C18 reversed phase silica gel, and prep-HPLC were used. The structures were elucidated on the basis of MS and spectroscopic analysis (1D and 2D NMR), as