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The effect of Xue Bijing to level of serum endotoxin and specific immunological function of spleen in rats with sepsis. Zhang Shuwen, Sun Chendong Department of infection, Beijing Friendship Hospital affiliate of Capital University of Medical Sciences , Beijing,100050, [abstract] Object To study the characteristic change of serum esotoxin、HLA-DR、lymphopoiesis and expression of Caspase3 of spleen in different sepsis rats . Methed we produce sepsis model by cecal ligation puncture. ;to divide into four groups and sampling blood in 3,24.72h after built modol,, Compared the change between groups. we employed matrix manifest to examine the level of serum endotoxin, examined the fluorescent strength expression level of spleen lymphocyte HLA-DR by FACS flow cytometer, employed the immuno- histochemistry to examine the positive expression of Caspase [key words] sepsis; Xue bingjing; endotoxin; HLA-DR; Caspase3; lymphopoiesis
目前,脓毒症(sepsis)仍是重症加强治疗病房(icu)中患者死亡的主要原因。随着对脓毒症致病机制和宿主对脓毒症反应基因学基础的研究,人们逐渐认识到机体免疫状态紊乱在脓毒症发生发展中起着重要的作用。血必净注射液在临床应用中己取得了良好的效果,本实验主要观察血必净注射液对脓毒症大鼠特异性免疫功能的影响。 1试验材料与实验方法 1.1试验材料:体重270~ 1.2试验方法: 实验室室温24~26℃。实验动物饲养3d以上,术前称重,大鼠采用0.1%戊巴比妥钠按照0.4ml/ 术前半小时给药一次,后每日同时间给药,假手术组、模型组給予等容量的生理盐水,各组按照1ml/ 处死取动物后取血清应用改良的基质显色法检测血清中的内毒素水平,处死动物无菌取动物脾脏,应用流式细胞仪监测HLA-DR水平。脾细胞制备及增殖测定:MTS-PMS 法。用完全RPMI-1640 培养液调整细胞密度为2×106/ml。于96孔细胞培养板中加入脾细胞悬浮液。除阴性对照孔外,其余各孔均加入终浓度5g/ml的ConA。脾细胞加ConA的孔为阳性对照孔,试验孔在此基础上再加入10l已稀释的酪蛋白酶解产物。阴性对照孔、阳性对照孔和试验孔各设3个重复孔。混匀后,将96孔细胞培养板放入 1.3统计学处理 实验数据用SPSSl1.0软件包进行统计处理。统计学方法:所有数据(x±s)表示,方差齐、数据成正态分布者,计量资料采用方差分析,组间比较采用q检验,计数资料采用卡方检验;如果数据分布不正态,或方差不齐,采用秩和检验。以p<0.05为差异具有显著性。 2.结果 2.1不同组别各时间段内毒素含量的比较 3小时时模型组与各组比较内毒素明显上升,利复星比血必净组有所升高,但无统计学意义(p=0.068),与正常组比较各组均明显升高。24小时模型组仍然明显升高,与利复星组比较血必净组与正常组明显下降(p=0.012),正常组与血必净组比较无显著意义(p=0.809)。72小时模型组内毒素仍然保持高水平(p=0.000),较其他组明显升高,与利复星比较正常组与血必净组明显降低(p=0.000),正常组与血必净比较无显著意义(p=0.395)。 表1 不同组别各时间段内毒素含量的比较
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