Application of gypenoside B in antagonizing side effects of chemoradiotherapy and glucocorticoid hormone drugs, and preparation method of gypenoside B
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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0022] A preparation of Gypenoside B in antagonizing side effects of radiotherapy and chemotherapy and glucocorticoids, comprising the following steps:
[0023] Take 15kg-30kg of total saponins of Gynostemma pentaphyllum, dissolve it in methanol, mix it with 30kg-50kg of silica gel, evaporate the solvent, put it on a 90-110kg dry-process silica gel chromatography column, elute with chloroform-methanol gradient, and check with thin layer chromatography (Take the upper layer of n-butanol-acetic acid-water (4:1:5) as developing agent, developer: 10% sulfuric acid ethanol solution), collect and combine the eluate containing gypenoside B, and get 5kg of gynostemma after re...
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