乌司他丁干预对水下爆炸致兔急性肺损伤TNF-α表达的影响

摘要

Objective The expression of TNF-α was detected in sera of rabbits treated by ulinastatin with acute lung injury in duced by underwater explosion.Methods Rabbits were randomly divided into two groups such as the injured group and ulinastatin therapy group.Established underwater explosion device was used to cause acute lung injury in rabbits.TNF-α in sera of the rabbits were measured by ELISA at 4,12 and 24 hours after the explosion.The SPSS17.0 software was used to analyze the data and P＜0.05 was considered to be significant.Results There was no significant difference between the concentrations of TNF-α in the sera of rabbits in the injure group (538.20±201.43 ng/L) and that of in the ulinastatin group (386.90± 109.22 ng/L,t=2.088,P=0.051) at 4 hours after burst.However,there was evidently decreased in the level of TNF-α in the ulinastatin group (400.60 ± 78.98 ng/L) compared with the injury group (573.80 ± 178.24 ng/L,t =2.809,P =0.012) at 12 hours after burst.Moreover and TNF-α in the ulinastatin group (356.10 ± 130.99 ng/L) was also decreased compared to the injure group (552.30± 169.64 ng/L,t=2.895,P=0.010) at 24 hours after burst.Conclusion The TNF-α expression in sera of the rabbits in ulinastatin group were dramatically decreased than thai of in injury group at 12 hours after burst,which may be benefit to rabbits with acute lung injury induced by underwater explosion.%目的 探讨乌司他丁干预对水下爆炸致兔急性肺损伤时肿瘤坏死因子(tumor necrosis factor-alpha,TNF-α)的影响.方法 健康新西兰兔随机分为爆炸损伤组与乌司他丁治疗组,以水下爆炸致兔急性肺损伤,用免疫酶联法检测爆炸后4,12和24 h血清中TNF-α浓度.以SPSS17.0统计软件进行分析,P＜0.05为差异具有统计学意义.结果 爆炸后4h乌司他丁组TNF-α浓度为386.90±109.22 ng/L,爆炸损伤组TNF-α浓度为538.20±201.43 ng/L,二者相比无变化(t=2.088,P=0.051);爆炸后12 h乌司他丁组TNF-α浓度为400.60±78.98 ng/L,爆炸损伤组TNF-α浓度为573.80±178.24 ng/L,二者相比差异有统计学意义(t=2.809,P=0.012);24 h乌司他丁组TNF-α浓度为356.10±130.99 ng/L,爆炸损伤组为552.30±169.64 ng/L,二者相比差异也有统计学意义(t=2.895,P=0.010).结论 鸟司他丁干预下实验兔在爆炸12 h后血清TNF-α降低.