【摘要】目的探討細(xì)菌性腹膜炎致多器官功能不全綜合征(MODS)大鼠結(jié)腸運(yùn)動(dòng)的變化和細(xì)胞因子白介素6(IL6)、腫瘤壞死因子α(TNFα)及誘生性一氧化氮合成酶(iNOS)對(duì)結(jié)腸運(yùn)動(dòng)的影響。
方法將Wistar大鼠隨機(jī)分成正常對(duì)照組和MODS組; 分別觀測(cè)2組大鼠排便的糞點(diǎn)數(shù)、結(jié)腸肌條的振幅、結(jié)腸平滑肌細(xì)胞長(zhǎng)度以及血清一氧化氮(NO)的變化; 利用免疫組化和逆轉(zhuǎn)錄聚合酶鏈反應(yīng)(RTPCR)方法檢測(cè)結(jié)腸平滑肌IL6、TNFα和iNOS表達(dá)的變化。
結(jié)果MODS組排便的糞點(diǎn)數(shù)和肌條的振幅均明顯低于正常對(duì)照組(P<0.05); IL6、TNFα和iNOS蛋白表達(dá)在正常對(duì)照組為陰性表達(dá),在MODS組為陽(yáng)性表達(dá); 在正常對(duì)照組未檢出IL6 mRNA、TNFα mRNA和iNOS mRNA的表達(dá),而在MODS組,IL6 mRNA、TNFα mRNA和iNOS mRNA均呈陽(yáng)性表達(dá); MODS組平滑肌細(xì)胞的長(zhǎng)度和血清NO水平均較正常對(duì)照組明顯增高(P<0.01)。
結(jié)論MODS后結(jié)腸運(yùn)動(dòng)功能障礙與iNOS、IL6和TNFα密切相關(guān)。
引用本文: 陳哲宇,齊清會(huì),嚴(yán)律南. 細(xì)菌性腹膜炎誘導(dǎo)大鼠多器官功能不全綜合征后結(jié)腸運(yùn)動(dòng)的變化和機(jī)理. 中國(guó)普外基礎(chǔ)與臨床雜志, 2006, 13(3): 287-290. doi: 復(fù)制
版權(quán)信息: ?四川大學(xué)華西醫(yī)院華西期刊社《中國(guó)普外基礎(chǔ)與臨床雜志》版權(quán)所有,未經(jīng)授權(quán)不得轉(zhuǎn)載、改編
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- 1. Lodato RF, Khan AR, Zembowicz MJ, et al. Roles of IL1 and TNF in the decreased ileal muscle contractility induced by lipopolysaccharide [J]. Am J Physiol, 1999; 276(6 Pt 1)∶G1356.
- 2. 陳哲宇, 齊清會(huì). 多器官功能不全綜合征大鼠結(jié)腸運(yùn)動(dòng)功能變化和機(jī)制的研究 [J]. 中華實(shí)驗(yàn)外科雜志, 2004; 21(3)∶341.
- 3. Hierholzer C, Kalff JC, Chakraborty A, et al. Impaired gut contractility following hemorrhagic shock is accompaied by IL6 and GCSF production and neutrophil infiltration [J]. Dig Dis Sci, 2001; 46(2)∶230.
- 4. Hierholzer C, Kalff JC, Billiar TR, et al. Induced nitric oxide promotes intestinal inflammation following hemorrhagic shock [J]. Am J Physiol Gastrointest Liver Physiol, 2004; 286(2)∶G225.
- 5. De Winter BY. Study of the pathogenesis of paralytic ileus in animal models of experimentally induced postoperative and septic ileus [J]. Verh K Acad Geneeskd Belg, 2003; 65(5)∶293.
- 6. Bani D, Baccari MC, Quattrone S, et al. Relaxin depresses small bowel motility through a nitric oxidemediated mechanism: Studies in mice [J]. Biol Reprod, 2002; 66(3)∶778.