The Selenylation Modification of Epimedium Polysaccharide and Isatis Root Polysaccharide and the Immune-enhancing Activity Comparison of Their Modifiers

文献类型： 外文期刊

第一作者： Li, Xiuping

作者： Li, Xiuping;Hou, Ranran;Yue, Chanjuan;Liu, Jie;Gao, Zhenzhen;Wang, Deyun;Liu, Cui;Hu, Yuanliang;Li, Xiuping;Chen, Jin;Lu, Yu

作者机构：

关键词： Epimedium polysaccharide;Isatis root polysaccharide;Selenylation modification;Lymphocyte proliferation;Antibody titer

期刊名称：BIOLOGICAL TRACE ELEMENT RESEARCH （ 影响因子：3.738； 五年影响因子：3.44 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Epimedium polysaccharide (EPS) and isatis root polysaccharide (IRPS) were extracted, purified, and selenizingly modified by nitric acid-sodium selenite method to obtain nine selenizing EPSs (sEPSs), sEPS(1)-sEPS(9) and nine selenizing IRPSs (sIRPSs), sIRPS(1)-sIRPS(9), respectively. Their effects on chicken peripheral lymphocyte proliferation in vitro were compared by MTT assay. The results showed that selenium polysaccharides at appropriate concentration could promote lymphocyte proliferation more significantly than unmodified polysaccharides, sEPS(5) and sIRPS(5) with stronger actions were picked out and injected into the chickens vaccinated with Newcastle disease vaccine in vivo tests. The peripheral lymphocyte proliferation and serum antibody titer were determined. The results showed that sEPS(5) and sIRPS(5) could elevate serum antibody titer and promote lymphocyte proliferation more significantly than unmodified polysaccharides, sEPS(5) possessed the strongest efficacy. These results indicate that selenylation modification can significantly enhance the immune-enhancing activity of EPS and IRPS, and sEPS(5) can be as a new-type immunopotentiator of chickens.

分类号： Q5

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