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目的制作大鼠溃疡性结肠炎(UC)模型,研究NO的意义,观察中药复方胃肠康的作用.方法SD大鼠随机分健康对照组(13只)、模型组(28只)、模型+胃肠康组(17只)和模型+强的松组(16只).后3组61只大鼠以二硝基氯苯法制作UC模型.动物颈背部剃毛后,以20g/(L·d)的2,4二硝基氯苯丙酮液滴背1次,每次每鼠5滴.连用14d致敏.其后每日向肛内6cm处的结肠肠腔灌10g/L二硝基氯苯乙醇(05L/L)液1次,每次每鼠035ml,连续4d.复方胃肠康为柴胡、艾叶等4味中药的11kg/L水煎剂,每日每鼠灌胃1ml.醋酸强的松为对照药.两种药物均应用临床等效量,连用6d.实验完成后处死动物,肉眼观察大肠粘膜,并取8cm肠段,置2ml蒸馏水浸泡,浸泡液参照Green方法测定NO代谢物(NOP).而后肠段固定,HE染色,作光镜病理检查.结果大鼠14只在造模后因病重或其他原因死亡.8只造模大鼠在造模完成后作病理抽检,发现其结肠都有炎症和典型的溃疡,NOP(μmol/L)为264±086,显著高于健康大鼠的171±114.应用胃肠康及强的松后,两造模+治疗组动物结肠的炎症减轻,溃疡数目及面积均较模型对?
Objective To develop a rat ulcerative colitis (UC) model to study the significance of NO and observe the effect of traditional Chinese medicine compound gastrointestinal health. Methods SD rats were randomly divided into healthy control group (n = 13), model group (n = 28), model + Weizhangkang group (n = 17) and model + prednisone group (n = 16). After the three groups of 61 rats with dinitrochlorobenzene production UC model. After shaving on the back of the neck of the animal, 2,4-dinitrochloropropiophenone 20 g / (L · d) was dripped once, 5 drops at a time. Use 14d sensitized. Thereafter, 10 g / L dinitrochlorphenylethanol (05 L / L) solution was administered to the colon intestine at 6 cm in the anus daily for 0 35 ml per rat for 4 days. Compound gastrointestinal Kang for the Bupleurum, Aiye and other 4 herbs 1 1kg / L decoction daily gavage 1ml. Prednisone acetate is the control drug. The two drugs are clinically equivalent amount, once every 6d. The animals were sacrificed after the experiment was finished, and the large intestine mucosa was observed with the naked eye. The intestinal tract of 8 cm was taken and immersed in 2 ml of distilled water. The soaking solution was used to measure NO metabolites (NOP) according to the Green method. Then fixed intestinal segment, HE staining for light microscopy. Results 14 rats died of serious illness or other reasons after modeling. Eight models of rats were pathologically sampled after the model was established. Inflammation and typical ulcer were found in the colon. NOP (μmol / L) was 264 ± 086, which was significantly higher than that in healthy rats 71 ± 1 14. Application of gastrointestinal Kang and prednisone, the two model + treatment group, the inflammation of the colon to reduce the number and area of ulcers than the model?