当归多糖对小鼠免疫功能的影响

目的　研究当归多糖对小鼠免疫功能的影响。方法　sc环磷酰胺复制免疫抑制模型 ;测定胸腺、脾脏重量并计算脏器系数 ;碳粒廓清法测定单核巨噬细胞吞噬功能 ;比色法测定血清溶血素IgG、IgM含量 ;MTT法测定混合淋巴细胞培养反应。结果　在 1 0～ 1 0 0mg·kg- 1 剂量范围内 ,当归多糖能对抗环磷酰胺引起的小鼠脾萎缩 ,增加正常小鼠脾重 ,而对于正常及免疫抑制小鼠胸腺影响不大 ;促进正常及免疫抑制小鼠碳粒廓清率 ;而对小鼠血清溶血素IgG、IgM的生成有较强的抑制作用 ;在 30～ 30 0mg·L- 1 剂量范围内能促进同种异型抗原激活的小鼠脾细胞的增殖。结论　当归多糖能增强正常及免疫抑制小鼠的非特异性免疫功能 ,而对正常小鼠的体液免疫功能有抑制作用

Immunoloregulation effect of Angelica polysaccharide isolated from Angelica sinensis

AIM To investigate the immunolore gulation effect of Angelica polysaccharide purified from Angelica sinensis(Oliv.)Diels. METHODS Index of immune organs was weighed and caculated. Phagocytosis of mononuclear macrophage (MΦ) was determined with carbon particle clearance test. Spectrophotography was used to estimate levels of serum hemolysis IgG, IgM. Mixed lymphocyte reaction was measured by MTT assay. RESULTS In certain concentrations (10～100 mg·kg -1 ), Angelica polysaccharide significantly in creased phagocytic function and spleen index inboth normal and immunosuppression mice,caused by sc cyclophosphamide, but showed no obviouse influnence on thymus index. It also remarkbly decreased levels of serum hemolysis IgG, IgM. CONCLUSION These results suggest that Angelica polysaccharide has potent enhancement on non specific immunity. However, it could suppress humoral immunity.