肝经、肺经脑内分布区域的fMRI研究

目的:探讨肝经、肺经在脑内的分布情况,为构建脑内经络理论提供影像学依据。方法:将健康大学生60人随机分为肝经组(Ⅰ)和肺经组(Ⅱ),每组按五输穴各分为5小组,分别为大敦(Ⅰ1)、行间(Ⅰ2)、太冲(Ⅰ3)、中封(Ⅰ4)、曲泉(Ⅰ5)和少商(Ⅱ1)、鱼际(Ⅱ2)、太渊(Ⅱ3)、经渠(Ⅱ4)、尺泽(Ⅱ5),每小组6人。采用fMRI技术观察针刺各穴激活脑区的情况。采用SPM2软件包进行数据处理,以P<0·01的像素构成统计参数图,按照Talairach坐标行解剖定位,获得实验任务激活的脑区,以肝经、肺经各自五输穴共同激活的脑区为肝经、肺经在脑内的分布区域。结果:针刺肝经五输穴共同激活的脑区为:同侧BA34、BA47、红核,对侧BA19、BA30、BA39、顶上小叶、小脑斜坡,两侧BA3、小脑顶;针刺肺经五输穴共同激活的脑区为:同侧BA2、BA18、BA35,对侧BA19、黑质。结论:肝经、肺经在脑内有其相对特异性分布区域,提示经脉到脑可能存在特异性联系。

Study on Corresponding areas the Liver and Lung Channels in brain with fMRI

OBJECTIVE: To explore distribution of the Liver and Lung Channels in the brain so as to provide imaging basis for construction of channel theory in the brain. METHODS: Sixty healthy student volunteers were randomly divided into a Liver Channel group (I) and a Lung Channel group (II), and the each group was further divided into five subgroups with 6 volunteers in each subgroup, based on five-shu-point principles which, were Dadun (LR 1, I 1), Xingjian (LR 2, I 2), Taichong (LR 3, I 3), Zhongfeng (LR 4, I 4), Ququan (LR 8, I 5), Shaoshang (LU 11, II 1), Yuji (LU 10, II 2), Taiyuan (LU 9, II 3), Jingqu (LU 8, II 4), and Chize (LU 5, II 5), respectively. In order to observe the brain activating patterns during acupuncture at the different acupoints, functional magnetic resonance imaging (fMRI) technique was adopted. All image data were then analyzed with SPM 2 software. The statistical parameter gram was composed of the pixel P < 0.01, and anatomic location was made according to Talairach coordinate, attaining experimentally activated areas, and the commonly activated area of five-shu-point of each channel was considered as the brain distribution of the Liver and Lung Channels. RESULTS: The common areas activated by the five-shu-points of the Liver Channel were homolateral Brodmann area (BA) 34, BA 47, red nucleus, contralateral BA 19, BA 30, BA 39, the superior parietal lobule, cerebellum decline, and bilateral BA 3 and culmen. The common areas activated by the five-shu-points of the Lung Channels included homolateral BA 2, BA 18, BA 35, and contralateral BA 9 and substania nigra. CONCLUSION: There are relatively specific corresponding brain areas for the Liver and Lung Channels, indicating that there is possible relatively specific connection between channels and the brain.