杜仲总多糖对环磷酰胺致免疫低下小鼠的影响

Effect of Immunoregulatory Activity of Eucommia Ulmoides Oliv Polysaccharides on Immunodepressive Mice

目的研究杜仲总多糖对环磷酰胺致免疫低下小鼠的影响。方法应用环磷酰胺建立免疫低下小鼠模型,给予不同剂量杜仲总多糖后,测定小鼠体重、胸腺指数、脾指数、腹腔巨噬细胞吞噬率、吞噬指数等指标。结果300g杜仲原药材经提取分离得9.3g多糖干品。应用环磷酰胺后,小鼠体重、胸腺指数、腹腔巨噬细胞吞噬率、吞噬指数均降低。杜仲总多糖能减轻环磷酰胺致小鼠体重的下降,升高免疫低下小鼠胸腺指数,明显增加小鼠腹腔巨噬细胞吞噬率、吞噬指数(P<0.01)。与空白组比较,杜仲总多糖还能提高正常小鼠的脾指数(P<0.05)。结论杜仲总多糖能够较好地增强小鼠免疫功能。

Objective To study the immunoregulatory activity of eucommia ulmoides oliv polysaccharides （EOP） on immunodepressive mice. Method The immunodepressive mice model was established with cyclophosphamide （CY） treated. EOP was given with different doses, and mouse weight, thymus index, spleen index, abdominal cavity macrophage engulfing rates, engulfing index were measured. Result 300 grams Eucommia ulmoides Oliv crude drugs after withdraw separate gained 9.3 grams polysaccharides. After CY injection, the mouse weight, chest gland index, abdominal cavity macrophage swallowing rate, phagocytic count reduced. EOP could resist the mouse body weight drop induced by CY, elevate the thymus index of immunity low mouse, obviously increase mouse abdominal cavity macrophage engulfing rates and engulfing index （P〈0.01）. And compared with the blank group, Fop could promote the spleen weight of immunity low mouse （P〈0.05）. Conclusion EOP could enhance immunofunction of immunodepressive mice.