太溪和丘墟穴捻针时不同脑功能区的激活

A number of previous studies of acupuncture acupoint specificity have used sham acupoints,sham acupuncture or meridian acupoints at a great distance from each other as controls in functional MRI (fMRI) experiments.However,few studies have compared different meridian acupoints within the same segment,which are associated with similarly intense needle sensations.We performed fMRI on 12 healthy young volunteers and observed differences in brain activation elicited by acupuncture of the Taixi (KI 3) and Qiuxu (GB 40) acupoints.Acupuncture was applied at the Taixi and Qiuxu acupoints,using a multiple-block fMRI design with three blocks,involving three alternations of resting and task phases.After scanning,needle sensation was assessed.The behavioral results revealed that the subjective needle sensation was similar between the Taixi and Qiuxu acupoints.The fMRI results revealed that acupuncture at the right Taixi acupoint activated the right superior temporal gyrus (BA 22),left middle frontal gyrus (BA 46) and inferior frontal gyrus (BA 45),bilateral parietal lobe postcentral gyrus (BA 2),right parietal lobe (BA 3),and left parietal lobe (BA 40).Acupuncture at the right Qiuxu acupoint activated the left superior temporal gyrus (BA 42),right parietal lobe postcentral gyrus (BA 40,BA 43),right inferior frontal gyrus (BA 47),bilateral superior temporal gyrus (BA 22),and right insula BA13.These results suggest that the right Taixi and Qiuxu acupoints activated different brain areas.

Activation of various brain areas during acupuncture at Taixi (KI 3) and Qiuxu (GB 40) acupoints

Objective: To analyse the different the brain function evoked by stimulating acupoints of Taixi (K3) and Qiuxu (GB40) in the location of nearby. Methods: Twelve healthy young cases were enrolled in this research. FMRI study of a block design was adapted. In stimulation phase, the needle was twisted manually. Scanned images were analyzed using SPM2. Results: Result of activation area, right superior temporal gyrus (BA22), left medial frontal gyrus (BA46) and left inferior frontal gyrus (BA45), bilateral postcentral gyrus of parietal lobe (BA2), right postcentral gyrus of parietal lobe (BA3), and left inferior parietal lobule (BA40) were evoked by acupuncture at Taixi; Left superior temporal gyrus (BA42), right postcentral gyrus of parietal lobe (BA40, BA43), right inferior frontal gyrus (BA47), bilateral superior temporal gyrus (BA22) and left insular (BA13) were evoked by acupuncture at Qiuxu. Conclusion: The different areas evoked by acupuncture at Taixi and Qiuxu in the location of nearby are closely related with the internal organs as well as the course of the channels and collaterals.