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和胃理气方治疗功能性消化不良作用机制的实验研究

【作者】 刘鸿慧

【导师】 王垂杰;

【作者基本信息】 辽宁中医学院 , 中医诊断学, 2004, 硕士

【摘要】 目的:观察功能性消化不良(FD)胃肠运动的变化及胃窦部P物质(SP)、血管活性肠肽(VIP)的表达。观察和胃理气方对肝胃不和型FD大鼠胃排空及肠道传输的影响,从脑肠肽浓度方面探讨其作用机制。方法:将大鼠随机分为4组,分别为正常组、模型组、中药组和西药组。用“夹尾激怒法”制作肝胃不和型FD大鼠模型。处理7天后,以葡聚糖兰—2000为胃肠内标记物观察大鼠胃肠动力变化,用免疫组化法观察胃窦部SP、VIP的变化。结果:与正常组比较,模型组大鼠胃内色素相对残留率明显增加并且小肠推进度明显下降(P<0.05);胃窦部SP阳性产物含量显著减少(P<0.025),VIP阳性产物含量显著增多(P<0.05)。中药组及西药组大鼠同模型组相比,胃内色素相对残留率均显著降低,且小肠推进度均显著提高(P<0.05);中药组大鼠胃窦部SP阳性产物较模型组明显增多(P<0.025):西药组大鼠胃窦部SP阳性产物较模型组也明显增多(P<0.05);中药组及西药组大鼠胃窦部VIP阳性产物与模型组相比均明显减少(P<0.05),其余各组两两间比较无显著性差异。结论:和胃理气方能促进大鼠胃排空及小肠推进,其机制可能与调整胃窦部SP、VIP的水平有关。 前言 功能性消化不良是消化内科最常见的疾病之一,较严重地影响了患者的工作质量和生活质量,迄今为止FD的发病机制尚未明确,在治疗上现代医学无特效药物及疗法,临床多应用促胃肠动力等药物以对症治疗。实践证明西药作用单一、疗效有限,故研究双向调节药物,促进胃肠平衡,被认为是治疗FD的最佳策略。充分发挥中医药优势,挖掘优秀的中药方剂治疗FD已成为本领域的一个研究热点。和胃理气方经临床实验证明疗效确切,本实验就和胃理气方对FD大鼠脑肠肽的影响进行研究,从神经内分泌角度探讨其治疗机制,为临床筛选有效方剂提供理论依据。 材料与方法 1.实验材料 1.1 实验动物:SD大鼠35只,雄性,7周龄,体重为220±20g,由中国医科大学实验动物中心提供。 1.2 试剂:2%葡聚糖兰-2000(DB-2000),联星生物制药有限公司出品:P物质和血管活性肠肽试剂盒购自武汉博士德生物制品公司。

【Abstract】 Objective: To investigate the movement of stomach and intestine, SP and VIP expression changes in rats with functional dyspepsia (FD)(type of incoordination between the liver and stomach ILAS). To illustrate the possible mechanism of Heweiliqifang’ s effct.Methods: All rats were divided into 4 groups at random. The rat models of incoordination between the liver and stomach in FD were induced by stimulating the tails of the rats. After consecutively treated for 7 days, gstric residue and peristalsis of the small intestines were observed in all rats with a maker of dextran blue-2000 to determine to capacity gastric evacuation and intestinal transit. And distributions of SP and VIP in antrum of rats were observed by immunohistochemistry.Results: Compared with the nomal control, gastric emptying rate and intestinal propulsive function were lowered (P<0.05), SP and VIP in antrum of rats were significantly deffrent (P<0.05). After treated with Heweiliqifang ,the aforesaid data were normalized with insignificant difference in comparing with the normal control (P>0.05).Conclusion: Heweiliqifang can promote gastric emptying rate and intestinal propulsive function by regulating the levels of SP and VIP.

  • 【分类号】R259.7
  • 【被引频次】1
  • 【下载频次】224
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