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Effect of ethyl pyruvate on hepatic high mobility group box-1 protein expression and acute liver injury in rats with delayed resuscitation after burn injury
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF EMERGENCY MEDICINE
- Issue:
- 8
- DOI:
- 10.3760/j.issn:1671-0282.2007.08.004
- Key Word:
- 烧伤;肝功能;高迁移率族蛋白B1;丙酮酸乙酯
Abstract： 目的 探讨烫伤大鼠肝组织高迁移率族蛋白B1(HMGB1)表达的变化规律,观察丙酮酸乙酯(EP)对烫伤后肝组织HMGB1表达及肝功能的影响.方法 采用大鼠30%总体表面积Ⅲ度烫伤模型,78只雄性Wistar大鼠随机分为假伤组(n=18)、烫伤组(n=30,烫伤后2 h腹腔给予林格液 3 ml)、丙酮酸乙酯(EP)治疗组(n=30,烫伤后2 h腹腔给予EP3 ml).3组动物分别于伤后第8、24、72 h时点活杀,留取肝组织检测其HMGB1基因/蛋白表达,留取血标本检测肝功能指标.采用逆转录聚合酶链反应及蛋白免疫印记法检测肝组织HMGB1基因/蛋白表达,应用全自动生化分析仪测定血清天冬氨酸转氨酶(AST)和丙氨酸转氨酶(ALT)水平.结果 与假伤组比较,严重烫伤组大鼠肝组织HMGB1 mRNA表达及蛋白水平均显著增高(P＜0.05或P＜0.01),同时血清AST和ALT水平亦显著升高(P＜0.05或P＜0.01).EP治疗组大鼠肝组织HMGB1表达显著下调,血清AST和ALT水平不同程度地明显下降(P＜0.01或P＜0.05).结论 HMGB1参与了烫伤大鼠的炎症反应过程,应用EP治疗可有效抑制烫伤后肝组织HMGB1的表达,并显著减轻烫伤延迟复苏所致肝功能障碍.
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