血必净注射液对烧伤延迟复苏大鼠器官功能及死亡率的影响

目的 观察血必净注射液对烧伤延迟复苏大鼠多器官功能损害和死亡率的影响。方法 采用大鼠30％总体表面积Ⅲ度烫伤模型。130只雄性Wistar大鼠按随机数字表法分为假伤组（n=10）、烫伤组（n=60，伤后6h腹腔内注射40ml／kg生理盐水）和血必净组（n=60，血必净注射液4ml／kg，每日2次）。除假伤组外，各组再根据不同给药时间点分为伤前2h（n=20）、伤后2h（n=20）和伤后12h（n=20）给药组。分别观察不同时间点各组动物7d的死亡率及伤后12h多器官功能改变。结果 与烫伤组相比，伤后12h血必净组动物死亡率显著降低（75．0％比40．0％。P〈0．05）；同时，血必净组伤后12h血清丙氨酸转氨酶（ALT）、天冬氨酸转氨酶（AST）、尿素氮（BUN）、肌酐（Cr）及肌酸激酶（CK）水平均明显降低（P〈0．05或P〈0．01）。结论 血必净注射液能够明显降低严重烧伤延迟复苏大鼠的死亡率，并对重要器官具有保护作用。

Effects of Xuebijing injection (血必净注射液) on multiple organ dysfunction and mortality in rats with delayed resuscitation for scald injury

OBJECTIVE: To investigate the effects of Xuebijing injection on multiple organ dysfunction and mortality in rats with delayed resuscitation after scald injury. METHODS: Wistar rats were subjected to a 30% total body surface area (TBSA) full-thickness scald injury in the experimental groups. One hundred and thirty male Wistar rats were randomly divided into sham scald group (n=10), thermal injury group (n=60, 40 ml/kg normal saline was infused peritoneally 6 hours postburn), and Xuebijing treatment group (n=60, 4 ml/kg Xuebijing injection was injected twice a day in addition to delayed resuscitation). Animals of the thermal injury group and Xuebijing treatment group were redivided into three subgroups according to the different time points of treatment: 2 hours before scald (n=20), 2 hours after scald (n=20), and 12 hours after scald (n=20). Multiple organ function parameters and 7-day mortality were determined in all the groups. RESULTS: The mortality of animals with Xuebijing treatment at 12 hours postburn was significantly lower than that of scald controls (75.0% vs. 40.0%, P<0.05). In comparison with scald group, the animals in Xuebijing treatment group were found to have significantly decreased values of organ functional parameters at 12 hours postburn, including serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), creatinine (Cr) and creatine kinase (CK, P<0.05 or P<0.01). CONCLUSION: These findings indicate that Xuebijing injection could obviously lower the mortality of rats with delayed resuscitation after burn injury, and it markedly protects against multiple organ dysfunction secondary to severe burns.