机构地区:[1]中国中医科学院中医基础理论研究所方证中心,北京100700
出 处:《中国实验方剂学杂志》2014年第9期152-157,共6页Chinese Journal of Experimental Traditional Medical Formulae
基 金:中国中医科学院自主选题项目(Z02028)
摘 要:目的:采用2,4,6-三硝基苯磺酸(TNBS)诱导的大鼠溃疡性结肠炎(UC)模型,观察连理汤各拆方药组及其配伍对UC大鼠外周血及结肠组织中细胞因子等含量的影响.方法:将连理汤拆分成补脾益肠药(A因素)、清热燥湿药(B因素)、温中散寒药(C因素),以含和不含该因素为1,2水平,采用正交设计表L8(2^7)设试验1~7组和UC组,增设柳氮磺吡啶组(SASP)与正常对照组.采用Sprague Dawley大鼠,前9组按TNBS乙醇灌肠法塑造UC模型,试验1~7组分别灌胃相应的拆方浸膏混悬液,剂量依次为1.02,1.47,0.98,1.24,0.29,0.145,0.087 g·kg^-1,SASP组灌服柳氮磺吡啶(0.4 g·kg^-1),以UC大鼠外周血及结肠组织中细胞因子等含量作为考察指标,观察灌服连理汤拆方14d后各组对其含量的影响.结果:UC组大鼠结肠炎症环氧合酶-2(Cox-2)、白介素-1α(IL-1α)含量较正常对照组有显著升高(P<0.01),金属蛋白酶类组织抑制剂(tissue inhibitor of metalloproteinases 1,TIMP-1)和肿瘤坏死因子-α(tumor necrosis factor alpha,TNF-α)表达也有明显增强.补脾益肠药(A)在抑制结肠Cox-2方面影响显著(P<0.05);各因素对结肠中IL-1α含量的影响均不显著,但全方效果显著(P<0.01);补脾益肠药和清热燥湿药配伍(即A×B交互作用)对降低结肠TNF-α含量影响显著(P<0.05);温中散寒药(C)以及补脾益肠药和温中散寒药配伍(即A×C交互作用)对抑制UC大鼠结肠组织中TIMP-1含量有极显著影响(P<0.01),清热燥湿药(B)以及清热燥湿药和温中散寒药配伍(即B×C交互作用)对该指标也有显著影响(P<0.05).UC大鼠血清中IL-1α,TNF-α明显下降,拆方各因素均无显著作用;UC大鼠血清TIMP-1明显升高,温中散寒药(C)对抑制UC模型大鼠外周血中TIMP含量有显著性影响(P<0.05).结论:补脾益肠药在连理汤的整体疗效中起主导作用,温中散寒Objective:To carry out decomposition study on effects of Lianli Tang on colon and peripheral blood inflammatory factors in TNBS-induced rat model.Method:Lianli Tang were divided into three groups,tonify the spleen drugs (Panax Ginseng,Poria cocos,Atractylodes macrocephala koidz,Glycyrrhizae Radix et Rhizoma; symbol as A),Warming the middle and dissipating cold drugs (Zingiberis Rhizoma; symbol as B),clearing heat and drying dampness drugs (Coptidis Rhizoma; symbol as C),as three factors to design the experiment using orthogonal design table L8 (27),set up 1-7 group and UC group,then add sulfasalazine (SASP) and normal controls group (Control).Sprague Dawley rats were used to duplicate UC model by TNBS/ ethanol solution through enema,1-7 group was administrated respectively by Lianli Tang decompositions through intragastric treatment,which the corresponding doses is 1.02,1.47,0.98,1.24,0.29,0.145,0.087 g ·kg^-1,SASP group rats were fed by sulfasalazine (0.4 g ·kg^-1).Cytokines of peripheral blood and colon were observed after rats were treated for 14 days.Result:Cyclooxygenase-2 (Cox-2),interleukin-1α (IL-1α) of UC rats were increased significantly than control (P < 0.01),tumor necrosis factor-α (TNF-α) expression were also significandy enhanced,A of Liali Tang significantly affect the effect of inhibiting colon Cox-2 (P < 0.05),each factors except the whole formula,have no effect in regulating colonic IL-1α,A × B significantly affected the results (P<0.05) in reducing colonic TNF-α,C,A ×C (P<0.01) and B,B ×C (P<0.05) in inhibiting colon tissue inhibitor of metall oproteimses 1 (TIMP-1) levels.Serum IL-1α,TNF-α of UC rats decreased apparently,each decomposition factor had no effect on the result; serum TIMP-1 was obviously increased,decomposition C show effect on inhibiting TIMP-1 (P < 0.05).Conclusion:Tonify the spleen drugs played a major role in the overall effect of Lianli Tang,Warm the middle and dissipate col
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