氟脲嘧啶预防重症急性胰腺炎早期肾损伤的免疫机制研究
胰腺炎,急性坏死性·氟脲嘧啶·奥曲肽·肾·免疫,,胰腺炎,急性坏死性·氟脲嘧啶·奥曲肽·肾·免疫,1材料与方法,2结果,3讨论,参考文献
【摘要】目的:探讨5氟脲嘧啶(5Fu)和奥曲肽(Oct)防治重症急性胰腺炎(SAP)肾损伤的免疫机制。方法:逆行胰胆管注射牛黄胆酸建立大鼠SAP模型,随机分成生理盐水组(n=17),成模后静滴生理盐水;5Fu组(n=20),5Fu 2mg/h持续静滴12h;奥曲肽组(n=18),Oct首剂2μg/100g,继以0.2μg/(100g·h)持续静滴12h,另设假手术组(n=10)。ELISA法检测4组大鼠成模后6h和12h血清TNFα等系列细胞因子表达变化,TUNEL法检测大鼠肾组织凋亡率,RTPCR法测定肾组织TNFα mRNA表达。体外培养大鼠正常肾NRK细胞,用上述4组SAP大鼠血清分别置换培养液中小牛血清,流式细胞术检测处理后细胞凋亡率。结果:5Fu组和奥曲肽组血清TNFα、IL1和TXB2较生理盐水组均明显降低(P均<0.05),奥曲肽组PGE2水平明显升高(P<0.05)。5Fu组和奥曲肽组肾组织凋亡率分别为(5.8±3.1)%和(4.6±3.1)%,显著低于生理盐水组(12.3±5.6)%(P<0.05),且两组TNFα mRNA表达明显下降。生理盐水组、奥曲肽组、5Fu组和假手术组大鼠血清处理后NRK细胞凋亡指数分别为(38.67±11.4)%、(20.4±18.4)%、(10.5±11.0)%和(1.7±2.2)%。生理盐水组与奥曲肽和5Fu组差异有统计学意义(P<0.05)。结论:5Fu可通过降低血清炎性介质和细胞因子,减少肾细胞凋亡防治SAP急性肾损伤。【关键词】胰腺炎,急性坏死性·氟脲嘧啶·奥曲肽·肾·免疫
The immune mechanism of 5fluorouracil in the protection of kidney from injury of severe acute pancreatitis
CHENG Baoquan,ZHONG Ning,LIU Chuntao,FAN Wei,HAO Hongsheng,ZHANG Shangzhong
Department of Gastroenterology,Qilu Hospital of Shandong University(Jinan 250012,China)
【ABSTRACT】Objective:To investigate the immune mechanism of 5fluorouracil(5Fu) and Octerotide(Oct)in the treatment of severe acute pancreatitis(SAP)and it’s kidney injury.Methods:55 male SAP rats induced by retrograde infusion of 5% sodium taurocholate into bilopancreatic duct were randomly divided into 3 groups:Normal saline group(n=17)were treatmented with normal saline infusion ......
您现在查看是摘要页,全文长 11814 字符。