异丙酚对重症急性胰腺炎大鼠早期肺损伤的干预作用

目的：探讨异丙酚对重症急性胰腺炎（SAP）大鼠早期肺组织损伤的干预作用。方法：健康成年雄性SD大鼠72只，按随机化原则分成9组，每组8只。即假手术组，重症急性胰腺炎30、60、120、360min组（SAP组：胰胆管逆行注入质量分数为5％牛磺胆酸钠溶液）和异丙酚30、60、120、360min组（造模后立即给予异丙酚150μg·kg^-1·min^-1尾静脉持续注射）。剖杀各组大鼠，分别检测血清淀粉酶（AMY）、脂肪酶（LIP）的含量，计算肺、胰腺组织湿／干重比，并观察胰腺组织和肺组织的病理学改变。结果：异丙酚组大鼠360min时肺组织含水量明显减轻、病理积分明显降低（P均〈0．01），但大鼠胰腺组织含水量及病理积分无明显改变（P均〉0．05）。结论：异丙酚可减轻重症急性胰腺炎大鼠早期肺组织的损伤程度，但不能减轻重症急性胰腺炎大鼠早期胰腺组织的损伤程度。

Effect of propofol on pulmonary injury induced by early-stage severe acute pancreatitis in rats

AIM:To investigate whether propofol can alter the pulmonary inflammation induced by severe acute pancreatitis(SAP)in rats during its early period.METHODS:Seventy-two adult male Sprague-Dawley (SD)rats were randomly divided into nine groups with 8 animals in each group:sham group,SAP 30,60,120,360 min groups and propofol treatment 30,60,120,360 min groups.The preparation of SAP were induced by retrograde injection of 5% sodium taurocholate into the pancreatic duct of rats.And the treatment groups received propofol with doses of 150 μg·g~(-1)·min~(-1) injected continually immediately in vena caudalis after the preparation of ASP were made.Rats were sacrificed at different time points,and the level of AMY and LIP,the wet dry weight ratio(W/D)of pulmonary and pancreatic tissue,the pathological change of pulmonary and pancreatic tissue were examined.RESULTS:Water content and pathological score of pulmonary tissue were decreased significantly within 360 minutes after reproduction of SAP were received propofol(both P＜0.01).But no obvious change was observed in water content and pathological score of pancreatitis tissue(both P＞0.05).CONCLUSION:propofol can alleviate pulmonary inflammation induced by severe acute pancreatitis in its early period.But propofol can not alleviate the injury of pancreatitis tissue.