填精补髓、活血化痰开窍法对血管性痴呆大鼠海马组织单胺类神经递质的影响
2016-07-16徐云龙李肖赵建军
徐云龙李 肖赵建军
填精补髓、活血化痰开窍法对血管性痴呆大鼠海马组织单胺类神经递质的影响
徐云龙1李 肖2赵建军1
【摘要】目的 观察填精补髓、活血化痰开窍法对VD大鼠海马组织单胺类神经递质含量的影响。方法 建立双血管阻塞(2VO)改良法复制VD大鼠模型;采用酶联免疫法(ELISA)检测海马组织内去甲肾上腺素(NE)、多巴胺(DA)、5-羟色胺(5-HT)含量。结果 与假手术组比较,模型组大鼠海马组织NE、DA、5-HT含量减少(P<0.05);与模型组比较,阳性对照组,中药高剂量组、中药中剂量组海马组织DA、5-HT含量均增加(P<0.05),阳性对照组,中药高剂量组海马组织NE含量增加(P<0.05)。结论 填精补髓、活血化痰开窍法改善大鼠学习记忆功能障碍,其作用机制可能与提高海马组织内NE、DA、5-HT含量相关。
【关键词】填精补髓;活血化痰开窍法;血管性痴呆;单胺类神经递质
Objective To observe the effect of tianjingbusui huoxuehuatankaiqiaofa (TJBSHXHTKQF) on the contents of monoamine neurotransmitter in hippocampus of vascular dementia(VD)rats. Methods The vessel occlusion(2VO)was modified to establish the VD model. The contents of NE,DA and 5-HT in hippocampus were determined with Enzyme-linked immunosorbent assay(ELISE). Results Compared with sham group,the contents of NE,DA and 5-HT were decreased(P<0.05) in model group. Compared with model group,the contents of DA and 5-HT were clearly increased(P<0.05)in the high,middle dose of traditional Chinese medicine groups and the donepezil group,the contents of NE were increased(P<0.05) in the high dose of TCM groups and the donepezil group. Conclusion The TJBSHXHTKQF could improve the learning and memory capability of VD rats,the mechanism may be closely related with increasing the contents of NE,DA and 5-HT in hippocampus.
【Key words】Tianjingbusui,Huoxuehuatankaiqiaofa,Vascular dementia,Monoamine neurotransmitter
血管性痴呆(vascular dementia,VaD)是指由各种脑血管病引起的获得性智能损害及认知障碍综合征,在痴呆常见病因中仅次于阿尔茨海默病,位居第二[1]。研究显示,我国65岁及以上老年人中痴呆患病率约为7.8%,而VD患病率为1.1%,目前针对血管性痴呆的预防及治疗已成为医学基础研究和临床研究的迫切的任务。本文通过观察填精补髓、活血化痰开窍法对VD大鼠海马组织单胺类神经递质含量的影响,进一步验证填精补髓、活血化痰开窍法对VD可能的作用机制。
1 材料与方法
1.1 血管性痴呆大鼠模型制备
选用健康Wistar大鼠75只,体重为(250±30)g,雌雄各半,由长春中医药大学实验动物中心提供及喂养。随机分为假手术组(正常对照组)、模型组、阳性对照药组、中药高、中、低剂量组,经饲养及筛选后各组选取10只大鼠。……
