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Pentoxifylline suppresses the expression of tumor necrosis factor-α and interleukin-1β in ulcerative colitis in rats

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Author:: No author available

Journal Title:: WORLD CHINESE JOURNAL OF DIGESTOLOGY

Issue:: 36

DOI:: 10.3969/j.issn.1009-3079.2009.36.003

Key Word:: 溃疡性结肠炎;己酮可可碱;肿瘤坏死因子-α;白介素-1β

Abstract：目的:探讨己酮可可碱(PTX)对三硝基苯磺酸(TNBS)诱导的大鼠溃疡性结肠炎(UC)肠黏膜炎性细胞因子TNF-α及IL-1β表达的影响.方法:应用三硝基苯磺酸(TNBS)/乙醇灌肠制备大鼠UC的模型.实验设正常对照组(C组)、TNBS损伤组(T组)、PTX治疗组(D组),从造模后第3天开始给予D组大鼠PTX腹腔注射治疗,C组、T组则注入等量生理盐水,bid,连用5 d.观察疾病活动指数(DAI).处死大鼠,应用RT-PCR(逆转录-聚合酶链反应)方法半定量检测技术,对UC大鼠结肠黏膜中TNF-α、IL-1βmRNA表达进行测定.结果:TNBS损伤组大鼠肠黏膜TNF-α、IL-1β mRNA的表达及DAI评分明显高于正常对照组和PTX治疗组(6.85±2.78 vs 0.45±0.11,1.85±2.01;1.02±0.16 vs 0.61±0.08,0.74±0.16;0.95±0.17 vs 0.57±0.07,0.64±0.13,均P<0.05),而PTX治疗组与对照组相比则无明显差异(均P>0.05).结论:UC的发生过程中炎性细胞因子TNF-α及IL-1β表达升高;己酮可可碱可能通过降低炎性细胞因子TNF-α及IL-1β的表达而发挥其干预作用.

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