血必净注射液对脓毒症大鼠血清炎症介质及Th1/2的影响

Effect of treatment with Xuebijing injection (血必净注射液) on serum inflammatory mediators and Th1/2 of spleen in rats with sepsis

目的观察血必净注射液对脓毒症时促炎/抗炎免疫功能及免疫器官组织病理改变的影响。方法按随机数字表法将动物分为假手术组、模型组、左氧氟沙星组和血必净组4组,每组18只;采用盲肠结扎穿孔术制备脓毒症模型。制模后3、24和72h经腹腔静脉取血,采用酶联免疫吸附法(ELISA)测定血中白细胞介素10(IL10)和肿瘤坏死因子α(TNFα)水平;采用流式细胞仪(FACS)检测全血细胞中辅助性T细胞1/2(Th1/Th2)比值;观察肝、脾组织病理改变。结果脓毒症大鼠早期Th1/Th2明显升高,后期明显下降;24hTNFα、IL10水平均明显升高,后期明显下降。血必净组Th1/Th2仅在72h才明显升高,且表现为血必净能明显降低TNFα和IL10的水平,使促炎与抗炎达到平衡。结论脓毒症大鼠的免疫功能处于紊乱状态,特异性免疫功能受到抑制,而非特异性免疫功能亢进;血必净能改善脓毒症的免疫功能状态。

Objective To study the effect of treatment with Xuebijing injection （血必净注射液） on pro- or anti-inflammatory response and pathologic changes in immune organs in rats with sepsis. Methods Sepsis was reproduced in rats by cecal ligation and puncture. Rats were divided into four groups i.e. sham operation, sepsis, sepsis with levofloxacin treatment, and Xuebijing treatment groups. Blood samples were collected at 3, 24 and 72 hours after model was reproduced. Enzyme linked immunoadsordent assay （ELISA） was used to determine the levels of serum tumor necrosis factor -α （TNF -α） and interleukin - 10 （IL- 10）, expression level of spleen Thl/Th2 was assessed by FACS flow cytometer, and the pathological changes in immunological organs were examined. Results The results showed that the levels of Thl/Th2 and TNF -α, IL- 10 were elevated in early period of sepsis, but lowered in late period of sepsis. Xuebijing could decrease the level of Th1/Th2, which showed an increase at 72 hours. Xuebijing could lower the levels of TNF -α and IL - 10, rendering a balance of pro-and anti-inflammatory response. Conclusion There is a dissonance in immunological function in sepsis, showing a depression in specific immunological function, but an exaggeration in non-specific immunological function. Xuebijing can obviously ameliorate the immunological disturbance in sepsis of rat.