摘要
目的 探讨梗阻性黄疸大鼠脂多糖结合蛋白在不同梗阻时间的变化及其增敏机理。方法 将 80只雄性Wistar大鼠随机分为梗阻性黄疸组 (OJ组 ,n =4 0 )和假手术组 (SO组 ,n =4 0 ) ,分别于胆总管结扎手术前及手术后 5d、10d、15d、2 0d检测两组大鼠血清中脂多糖结合蛋白及血浆中内毒素、TNF α和IL 6水平 ,每组每一时相点各取 8只大鼠。结果 OJ组大鼠在胆总管结扎术后 10d ,其血清中脂多糖结合蛋白值为 ( 11.2 5± 2 .4 1)mg/L ,较SO组〔( 5 .32± 1.35 )mg/L〕明显升高 (P<0 .0 5 ) ,且随着梗阻时间的延长而进一步升高。相关分析显示 ,血清脂多糖结合蛋白与血浆内毒素、TNF α和IL 6在大部分时相呈明显正相关。结论 梗阻性黄疸时血清脂多糖结合蛋白水平升高 ,其增敏作用在梗阻性黄疸多器官损害中可能具有重要的作用。由此提示 ,通过降低血清中脂多糖结合蛋白 ,阻断其增敏作用 。
Objective To study the changes of lipopolysaccharide binding protein (LBP) in the serum of Wistar rats with obstructive jaundice and to investigate its potential mechanism.Methods Eighty male Wistar rats were randomly divided into obstructive jaundice group (OJ group, n =40) and sham operation group (SO group, n =40). Before operation and the 5th, 10th, 15th, 20th day after common bile duct ligation, the levels of LBP, endotoxin, tumor necrosis factor alpha (TNF α) and interleukin 6 (IL 6) in plasma were detected in all the rats. Results LBP levels in serum increased significantly in OJ group on the 10th day after operation compared with those of SO group. Moreover, LBP levels gradually increased in OJ group with the prolongation of obstructive time. A positive correlation existed between serum LBP and plasma endotoxin, TNF α and IL 6.Conclusion The study demonstrates that LBP in serum is high and plays an important role in the pathogenesis of multiple organ injury secondary to obstructive jaundice. It may be an appropriate way to treat patients with obstructive jaundice by decreasing LBP levels in serum.
出处
《中国普外基础与临床杂志》
CAS
2004年第4期328-330,共3页
Chinese Journal of Bases and Clinics In General Surgery
