藏藥陸額對黃嘌呤氧化酶活性的影響及其化學(xué)成分研究
[Abstract]:Land (Corydalis pallida) is the whole grass of Corydalis davidifolia and (Codonopsis nervosa) is the whole grass or the aboveground part of Codonopsis pilosula. Luzhang and Tibetan Codonopsis pilosula are the main components of Tibetan medicine Luoduoji granule, which is mainly used in the treatment of gout. No report has been reported on the effect of land and Tibetan Codonopsis pilosula on xanthine oxidase activity. Therefore, in this paper, the effects on xanthine oxidase activity and the identification of the chemical constituents of Xanthine oxidase were studied, which laid a foundation for further exploring the material basis and mechanism of Tibetan medicine in treating gout. The effects of Tibetan Codonopsis pilosula on xanthine oxidase activity objective: to study the effects of extracts and monomers of Tibetan Codonopsis pilosula on xanthine oxidase activity. Methods: the methanol extract of Codonopsis pilosula was prepared, steamed and dried. The extracts and monomers of Codonopsis pilosula were diluted to different concentrations in buffer solution, and the effect on xanthine oxidase activity was determined by ultraviolet spectrophotometry. Results: the methanol extract of Codonopsis pilosula and the monomers isolated and purified from Codonopsis pilosula had inhibitory effect on xanthine oxidase and showed a good dose-effect relationship. Effect of Luoduoji granule and its ingredients on xanthine oxidase activity objective: to study the effect of Luoduoji granule on xanthine oxidase activity at different concentrations. Methods: the methanol extract and the surface methanol, acetone and water extracts of Luopidoji granules were prepared, and then diluted into different concentrations with buffer solution, and the lychee grass was used as positive control. The effect of various extracts on xanthine oxidase activity was determined by UV spectrophotometry. Results: the methanol extract of Luopidoogi granules and the solvent extracts of the land surface had obvious inhibitory effects on xanthine oxidase. 3. Objective: to study the chemical constituents of the land surface. Methods: 20 kg dry medicinal materials were extracted by reflux extraction to get dry extract. The dry extract was extracted with different solvents to obtain the extract with different polarity. Different compounds were obtained by TLC and silica gel column chromatography. The structure of the compound was identified by spectral analysis. Results: 13 constituents were isolated from ethyl acetate and dichloromethane. Conclusion: all 13 compounds were obtained from this plant for the first time.
【學(xué)位授予單位】:西藏大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:R29
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