精氨酸加压素对脓毒症大鼠的肝肾保护作用

目的探讨精氨酸加压素(AVP)对毒症大鼠的肝、肾的保护作用。方法雄性SD大鼠通过盲肠结扎穿刺术(CLP)制作脓毒症大鼠模型,以假手术组(n=4)为对照,部分CLP大鼠(n=18)术后4h、8h、12h测肝、肾功能生化指标,部分大鼠CLP术后8h通过侧脑室注射AVP的方式中枢补充AVP(n=6)或人工脑脊液(aCSF,n=4),另一部分大鼠CLP术后6h通过静脉持续泵入AVP(n=6)或生理盐水(n=4)2h,分别在给药后1h测肝、肾功能生化指标变化;结果CLP术后4 h后大鼠血浆ALT、AST、ALP、BUN及Cr开始升高,CLP术后8h有统计学意义,后ALT、AST、ALP、BUN及Cr逐渐升高,CLP术后6h静脉持续泵入AVP2ng/(kg.h)]2h与静脉泵入生理盐水2h组相比大鼠血浆ALT、AST、ALP、BUN及Cr明显降低;但CLP术后8 h侧脑室给予AVP后大鼠血浆ALT、AST、ALP、BUN及Cr与对照组比较明显升高。结论脓毒症大鼠肝肾功能受损可能与血浆AVP水平有关,早期静脉给予AVP可改善肝肾功能,具有器官保护作用。

The Protection Effect of Arginine Vasopressin on the Function of Organ in the Septic Rat

Objective To explore the protecting effects of arginine vasopressin(AVP) on organic function in septic rat.Methods Sepsis rat model was induced in 18 rats by cecal ligation and puncture-induced(CLP).Levels of ALT,AST,ALP,BUN and Cr were detected in 4 sham rats and in CLP rats after 4~12h.In another 20 CLP rats,AVP was supplemented by continuous intravenous infusion or intracerebroventricular injection before these parameters were detected.Results Sepsis produced a gradual increase in ALT,AST,ALP,BUN and Cr ...