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桂附地黄丸对移植物抗宿主病小鼠IFN-γ表达影响的研究 被引量:1

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摘要 目的:观察中药桂附地黄丸对移植物抗宿主病小鼠IFN-γ表达的影响,探讨桂附地黄丸对移植物抗宿主病的作用及机理。方法:以SPF级Balb/c雄性小鼠作为供鼠,以SPF级C57BL/6雌性小鼠作为受鼠,移植前进行直线加速器全身照射,剂量为9.0Gy,照射后4小时内尾静脉输注骨髓细胞8×107个/只+脾细胞8×107个/只,建立GVHD模型。然后分为桂附地黄丸组和空白组,每组20只。C57BL/6雌性小鼠在移植前两周饮用含庆大霉素(3.2×105U/L)和红霉索(250mg/L)的灭菌水,无菌饲养。观察期间记录小鼠的一般生存状况、每天的体重以及存活时间,移植后第14天及第30天,分别杀鼠取材,运用ELISA法检测小鼠血清IFN-γ,Western Blot法检测小鼠脾脏IFN-γ蛋白的表达。结果:空白组在移植后14天全部死亡,死亡率100%,平均生存时间是26.95天;桂附地黄丸组死亡5只,存活率75%,平均生存时间是10天,差异显著(P<0.01)。移植后给药第14天,桂附地黄丸组小鼠血清中IFN-γ浓度较空白组降低,说明移植物抗宿主病的发生的严重程度与小鼠IFN-γ的表达呈正相关,具有统计学意义(P<0.01)。给药后第30天,其值继续下降,比值显著低于空白组(P<0.01)。结论:桂附地黄丸可以通过降低血清中的IFN-γ的浓度有效地预防和降低异体移植小鼠移植物抗宿主病的发生和发生后的严重程度。
出处 《内蒙古中医药》 2013年第23期34-36,共3页 Inner Mongolia Journal of Traditional Chinese Medicine
基金 广州中医药大学科研创新基金资助项目(2007C064)
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