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Isolation and Purification of Polysaccharides from cordyceps minlitaris and Its Inhibition on the Proliferation of Rat Glomerular Mesangial Cells

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Chemical Research in Chinese Universities 2008年第5期24卷 584-587页

作者： HOU A-li MENG Qing-fan AN Jin-shuang ZHU Kai FENG Yun TENG Li-rong College of Life Science Jilin University Changchun 130012 P. R. China

The crude polysaccharide was obtained by means of the decolorization of porphyrized cordyceps minlitaris stroma with organic solvent, extraction with hot water, precipitation in 80% ethanol, and protein removal with the Sevag method. After purification with Sephadex G-75, two of its components, CMP-1 and CMP-2, were obtained. Through the assay of gel chromatography and polarimetry, CMP-1 was identified as pure polysaccharide. The results demonstrated that CMP-1 had favorable oxidation resistance activity, which could scavenge not only oxygen-free radicals in the self-oxidation system of pyrogallic acid, but also the hydroxide-free radicals in the Fenton system. The study focused on the effects of low, medium, and high dosages of CMP-1 in rat blood serum on the proliferation of glomerular mesangial cells in vitro. Through MTT Colorimetric analysis, the activities were compared among the blank control group and the Niaoduqing positive control group CMP-1 and CMP-2. The results shows that CMP-1 was able to inhibit the proliferation of rat glomerular mesangial cells effectively. Therefore, CMP-1, one component of polysaccharides of cordyceps minlitaris, was certainly a potential remedy for hyperplastic glomerular nephritis, whose antioxidant activity could slow down the process of chronic renal failure（CRF） to some extent.

关键词： cordyceps minlitaris Polysaccharide Glomerular mesangial cell Oxidation resistance Chronic renal failure

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