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脑功能成像技术在中医脑研究中的应用价值 总被引:5,自引:0,他引:5
1中医理论构建了整体研究脑功能的模型 中医学和西医学以不同的认识方法研究同一对象.中西医的本质区别是方法论的不同.西医强调病理生理机制,注重微观,从形质角度研究人体组织、器官、物质的能量代谢及其联系和控制;中医注重宏观整体,通过"以象测脏、司外揣内",构建了一个基于辩证法、对立统一、整体性等思想在内的理论模型."象"是输出于外的"象变量"或"症状变量",是表现于外的客观实际,而"内部变量",包括脏、经络、气血阴阳、风、火、痰、湿、瘀等,则是在简单解剖的基础上对外在客观表现的总结和抽象.中医学是一个系统的、极其难得的资源,包括丰富的药物知识、证候认识、针刺经验等. 相似文献
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穴位特异性的脑功能影像学研究是目前针刺效应领域的研究热点,然而基于中枢神经系统多靶点激活的响应模式使得穴位效应脑区的寻找显得愈发艰难.本文结合国内外针刺效应脑功能影像学的研究进展,拟就穴脑相关效应的时间及空间分布特点进行初步探讨. 相似文献
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经穴—脑相关假说指导下经穴特异性、针刺得气、配伍规律脑功能界定 总被引:16,自引:0,他引:16
将脑功能成像技术(PET、SPECT、fMRI)运用于经穴特异性研究,提出"经穴-脑相关假说",基于人的活体状态、脑的功能活动、客观的图像和数据分析,以期①建立"经穴脑功能界定模型",以解决经穴的定义问题,即凡是符合该模型的基本要素的"点",即可定义为"经穴",从而区分经穴和非穴;②建立"经穴得气脑功能界定模型",以明确经穴得气的脑功能反应的实质,即凡是符合该模型的基本要素的"得气",即可定义为"得气",从而区分得气和非得气;③研究经穴循经取穴的穴位配伍特点和规律。 相似文献
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分析2000—2011年国内外期刊的相关文献,对腧穴配伍研究的思路进行探讨和展望。结果表明腧穴配伍既有协同作用也有拮抗作用,机制研究有一定进展,但在理论创新、研究设计和技术方法上有待进一步提高。今后腧穴配伍研究应该以提高针灸临床疗效为宗旨,需要进行新理论的凝练,严格进行研究设计,并积极应用现代科技方法,以期为针灸临床提供可资借鉴的理论依据和研究方向。 相似文献
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针刺不同穴位对脑缺血模型大鼠脑血流量的影响 总被引:9,自引:2,他引:9
目的:探讨治疗缺血性脑梗死的有效方法及针刺治疗的穴位特异性.方法:Wistar成年雄性大鼠120只,随机分为正常组、假手术组、模型对照组、非针刺组和针刺组,针刺组又随机分为非穴组和"醒脑开窍"针刺法各主穴组,即水沟组、内关组、尺泽组、三阴交组和委中组.每组12只大鼠.复制大鼠大脑中动脉缺血模型(MCAO),分别对"醒脑开窍"针刺法主穴("水沟""内关""尺泽""三阴交""委中")以及非穴区,施以频率3次/秒、持续时间5 s的针刺干预,以脑血流量为评价效应指标.结果:与模型对照组比较,非针刺组脑血流量有所升高,但差异无统计学意义(P>0.05);与非针刺组比较,针刺后的所有组别均可提高MCAO大鼠脑血流量(均P<0.05);与非穴组比较,所有穴位组的脑血流量均升高,水沟组和内关组升高明显(均P<0.05),而尺泽组、三阴交组、委中组与非穴组比较,差异无统计学意义(均P>0.05).结论:①MCAO大鼠于梗死后72h内在脑血流方面存在自我修复和向愈的趋势;②给予针刺刺激后可促进MCAO大鼠脑血流量的改善,且改善作用明显高于其自身修复能力,是治疗缺血性脑卒中的有效方法;③"醒脑开窍"针刺法各主穴中,"水沟"和"内关"在改善MCAO大鼠脑血流量方面效果显著,有穴位特异性作用. 相似文献
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Neuronal specificity of needling acupoints at same meridian: a control functional magnetic resonance imaging study with electroacupuncture 总被引:1,自引:0,他引:1
Zhang JH Cao XD Lie J Tang WJ Liu HQ Fenga XY 《Acupuncture & electro-therapeutics research》2007,32(3-4):179-193
The purpose of this study was to investigate the neuronal specificity of needling acupoints at same meridian by functional Magnetic Resonance Imaging (fMRI). The selected acupoints GB34 (Yanglinquan) and GB39 (Xuanzhong) were at the same gallbladder meridian based on traditional Chinese medicine. In our study we devise three distinct EA (electroacupuncture) manipulations: real EA (deep needling at acupoints), sham EA (deep needling at no-meridian points) and shallow EA (subcutaneous needling at acupoints). Twelve healthy volunteers with right-handiness were enrolled and received three different EA manipulations in counter-balanced orders. DeQi scores were used to evaluate the degree of needling sensation. We found real EA can induce significant stronger needling sensation than sham EA and shallow EA. Multisubjects group mean analysis showed that pain-related cortex including primary and secondary somatosensory cortex (SI and S II), anterior cingulated cortex (ACC), insula were involved in three EA stimulation. Bilateral activation of prefrontal gyrus and occipital cortex were exclusively found in real EA. Deactivation over the rostral segment of ACC was also shown in real and shallow EA. Further paired two difference analysis indicated that real EA induced higher activation than sham EA over bilateral prefrontal gyrus, right-side occipital gyrus and deactivation over the rostral segment of ACC. In the comparing with real EA versus shallow EA, there was right-side activation over the SI, S II, motor cortex, ACC, insula, thalamus, hippocampus, occipital cortex, and cerebellum; also activation over bilateral prefrontal gyrus, caudate and pons. Although no significant activation was found over periaqueductal gray (PAG), further analysis showed the mean and maximal signal changes were different under three EA manipulations. We concluded that EA at analgesic acupoints of same meridian maybe involved the pain-related neuromatrix especially the hypothalamus-limbic system; deep EA at meridian points could elicit stronger needling sensation and modulate the pain-related neuromatrix more effectively than EA at nonmeridian points or shallow EA at meridian points. 相似文献