【作者】 干晓瑜；

【导师】 刘建秋；

【作者基本信息】 黑龙江中医药大学 ， 中医学， 2010， 硕士

【摘要】 目的：观察通腑汤对ALI大鼠肺、肠组织中SP的影响。探讨通腑汤对ALI的作用机制,为“肺与大肠相表里”理论提供实验依据。方法：180只大鼠随机分正常对照组、模型组、地塞米松组、中药低剂量组、中药中剂量组和中药高剂量组,30只/组。尾静脉注射LPS复制ALI模型,半小时后中药各剂量组予高、中、低剂量中药灌胃、地塞米松组予腹腔注射地塞米松治疗。于治疗后第1、2、6小时,处死大鼠,每组每次各10只。光镜下观察肺、肠组织的形态学变化；ELISA法同步检测肺、肠组织中SP的含量。结果：1肉眼见模型组肺、肠组织颜色暗红、肿胀、出血,各治疗组较模型组减轻。2光镜下见模型组肺、肠组织炎性细胞浸润、水肿、充血、结构破坏,各治疗组较模型组程度减轻。3模型组肺组织中SP含量在前6小时内随时间的延长而增长,肠组织中SP含量随时间的延长而降低。4模型组和正常对照组相比,肺组织中SP显著升高,肠组织中SP显著降低,有统计学意义(P<0.05)。治疗各组和模型组比,肺组织中SP下降明显,肠组织中SP升高明显,有统计学意义(P<0.05)。中药低剂量组肺组织中SP含量高于地塞米松组,肠组织中SP含量低于地塞米松组,有统计学意义(P<0.05)：中药中剂量组、中药高剂量组肺、肠组织中SP含量与地塞米松组无显著差异,无统计学意义(P>0.05)；中药中剂量组、中药高剂量组肺组织中SP含量均低于中药低剂量组,肠组织中SP含量均高于中药低剂量组,有统计学意义(P<0.05)；中药高剂量组肺、肠组织中SP含量与中药中剂量组无显著差异,无统计学意义(P>0.05)。结论：1通腑汤可降低ALI大鼠肺组织中SP的含量,高、中剂量组效果较好。2通腑汤可增高ALI大鼠肠组织中SP的含量,高、中剂量组效果较好。更多还原

【Abstract】 Objective:To observe the effect on substance P(SP) in lung and intestine tissue of ALI rat model treated by Tongfu decoction, and explore the mechanisms of Tongfu decoction anti-ALI, so to provide experimental base on the lung and the large intestine being interior-exteriorly related theory.Methods:180 Wistar rats were divided into 6 groups randomly:the normal control group, the model group, hexadecadrol group, Chinese herbal medicine low-dose group, medium-dose group, and high-dose group,30 rats each group. Copying ALI model by caudal vein injecting LPS, giving respectively the Chinese herbal medicine intragastric administration and Dexamethasone intraperitoneal injection half an hour later, and executing rats in 1,2,6 hour after treatment respectively,10 rats each time in each group. We observed lung and intestine histomorphology changes, detected SP content in lung and intestine by ELISA method synchronously.Result:1 Lung and intestine tissue in the model group showed dark red, turgent, bleeding by naked eye, but other treatment groups showed lighter than it.2 Lung and intestine tissue in the model group showed inflammatory cell infiltrating, edema, hyperemia, disorganization in light microscope, but other treatment groups showed lighter.3 SP content increased in lung tissue of the model group, while it decreased in intestine tissue as time extending in first 6 hours.4 Compared with normal control group, There was higher SP expression in lung tissue and lower SP expression in intestine tissue in model group (P<0.05). SP decreased in lung tissue and increased in intestine tissue significantly in treatment groups Compared with model group (P<0.05). Compared with dexamethasone group,SP level is higher in lung tissue and lower in intestine tissue in low-dose group (P<0.05).In high-dose group、medium-dose group and dexamethasone group,SP level in lung and intestine tissue was similar, which showed no significant deviation (P>0.05). SP in low-dose group is higher in lung tissue and lower in intestine than high-dose and medium-dose group (P<0.05). In high-dose group、medium-dose group,SP level in lung and intestine tissue was similar, which showed no significant deviation (P>0.05).Conclusion:1 Tongfu Decoction could decrease SP in lung tissue of ALI rats model, the high-dose and medium-dose group showed better effects.2 Tongfu Decoction could increase SP in intestine tissue of ALI rats model, the high-dose and medium-dose group showed better effects.更多还原