Our previous ifndings have demonstrated that acupuncture at the Taixi （KI3） acupoint in healthy youths can activate neurons in cognitive-related cerebral cortex. Here, we investigated whether acupuncture at this acu...Our previous ifndings have demonstrated that acupuncture at the Taixi （KI3） acupoint in healthy youths can activate neurons in cognitive-related cerebral cortex. Here, we investigated whether acupuncture at this acupoint in elderly patients with mild cognitive impairment can also activate neurons in these regions. Resting state and task-related functional magnetic resonance imaging showed that the pinprick senstation of acupuncture at the Taixi acupoint differed signiifcantly between elderly patients with mild cognitive impairment and healthy elderly controls. Results showed that 20 brain regions were activated in both groups of participants, including the bi-lateral anterior cingulate gyrus （Brodmann areas [BA] 32, 24）, left medial frontal cortex （BA 9, 10, 11）, left cuneus （BA 19）, left middle frontal gyrus （BA 11）, left lingual gyrus （BA 18）, right medial frontal gyrus （BA 11）, bilateral inferior frontal gyrus （BA 47）, left superior frontal gyrus （BA11）, right cuneus （BA 19, 18）, right superior temporal gyrus （BA 38）, left subcallosal gyrus （BA 47）, bilateral precuneus （BA 19）, right medial frontal gyrus （BA 10）, right superior frontal （BA 11）, left cingulate gyrus （BA 32）, left precentral gyrus （BA 6）, and right fusiform gyrus （BA 19）. These results suggest that acupuncture at the Taixi acupoint in elderly patients with mild cogni-tive impairment can also activate some brain regions.展开更多
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....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 altemations of resting and task phases. After scanning, needle sensation was assessed. The behavioral results revealed that the subjective needle sensation was similar between the Taixiand 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 Taixiand Qiuxu acupoints activated different brain areas.展开更多
Acupuncture can induce changes in the brain.However,the majority of studies to date have focused on a single acupoint at a time.In the present study,we observed activity changes in the brains of healthy volunteers bef...Acupuncture can induce changes in the brain.However,the majority of studies to date have focused on a single acupoint at a time.In the present study,we observed activity changes in the brains of healthy volunteers before and after acupuncture atTaichong(LR3)andTaixi(KI3)using resting-state functional magnetic resonance imaging.Fifteen healthy volunteers underwent resting-state functional magnetic resonance imaging of the brain 15 minutes before acupuncture,then received acupuncture atTaichong andTaixi using the nail-pressing needle insertion method,after which the needle was retained in place for 30 minutes.Fifteen minutes after withdrawal of the needle,the volunteers underwent a further session of resting-state functional magnetic res-onance imaging,which revealed that the amplitude of low-frequency lfuctuation,a measure of spontaneous neuronal activity,increased mainly in the cerebral occipital lobe and middle occipital gyrus(Brodmann area 18/19),inferior occipital gyrus(Brodmann area 18)and cuneus(Brodmann area 18),but decreased mainly in the gyrus rectus of the frontal lobe(Brodmann area 11),inferi-or frontal gyrus(Brodmann area 44)and the center of the posterior lobe of the cerebellum.The present ifndings indicate that acupuncture atTaichong andTaixi speciifcally promote blood lfow and activation in the brain areas related to vision,emotion and cognition,and inhibit brain areas related to emotion,attention,phonological and semantic processing,and memory.展开更多
基金supported by the National Natural Science Foundation of China,No.81173354the Natural Science Foundation of Guangdong Province,No.10451810101005862+1 种基金a grant from Guangdong Administration of Traditional Chinese Medicine,No.20111032,20132019the Science and Technology Plan Project of Baoan District,Shenzhen City,No.200902159
文摘Our previous ifndings have demonstrated that acupuncture at the Taixi （KI3） acupoint in healthy youths can activate neurons in cognitive-related cerebral cortex. Here, we investigated whether acupuncture at this acupoint in elderly patients with mild cognitive impairment can also activate neurons in these regions. Resting state and task-related functional magnetic resonance imaging showed that the pinprick senstation of acupuncture at the Taixi acupoint differed signiifcantly between elderly patients with mild cognitive impairment and healthy elderly controls. Results showed that 20 brain regions were activated in both groups of participants, including the bi-lateral anterior cingulate gyrus （Brodmann areas [BA] 32, 24）, left medial frontal cortex （BA 9, 10, 11）, left cuneus （BA 19）, left middle frontal gyrus （BA 11）, left lingual gyrus （BA 18）, right medial frontal gyrus （BA 11）, bilateral inferior frontal gyrus （BA 47）, left superior frontal gyrus （BA11）, right cuneus （BA 19, 18）, right superior temporal gyrus （BA 38）, left subcallosal gyrus （BA 47）, bilateral precuneus （BA 19）, right medial frontal gyrus （BA 10）, right superior frontal （BA 11）, left cingulate gyrus （BA 32）, left precentral gyrus （BA 6）, and right fusiform gyrus （BA 19）. These results suggest that acupuncture at the Taixi acupoint in elderly patients with mild cogni-tive impairment can also activate some brain regions.
基金a grant from the Major State Basic Research Development Program of China (973 Program),No.2006CB504500China Postdoctoral Science Foundation,No.20090460700the Science and Technology Plan Project of Shenzhen City,No.200902159
文摘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 altemations of resting and task phases. After scanning, needle sensation was assessed. The behavioral results revealed that the subjective needle sensation was similar between the Taixiand 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 Taixiand Qiuxu acupoints activated different brain areas.
基金supported by a grant from the National Key Basic Research and Development Project(973 Program),No.2012CB518504a grant from the National Level Undergraduate Student Innovation Venture Training Project of Local Colleges,No.201212121048a grant from the ThreeStage Key Subject Construction Project of Guangdong Province of China(211 Project),No.(2009)431
文摘Acupuncture can induce changes in the brain.However,the majority of studies to date have focused on a single acupoint at a time.In the present study,we observed activity changes in the brains of healthy volunteers before and after acupuncture atTaichong(LR3)andTaixi(KI3)using resting-state functional magnetic resonance imaging.Fifteen healthy volunteers underwent resting-state functional magnetic resonance imaging of the brain 15 minutes before acupuncture,then received acupuncture atTaichong andTaixi using the nail-pressing needle insertion method,after which the needle was retained in place for 30 minutes.Fifteen minutes after withdrawal of the needle,the volunteers underwent a further session of resting-state functional magnetic res-onance imaging,which revealed that the amplitude of low-frequency lfuctuation,a measure of spontaneous neuronal activity,increased mainly in the cerebral occipital lobe and middle occipital gyrus(Brodmann area 18/19),inferior occipital gyrus(Brodmann area 18)and cuneus(Brodmann area 18),but decreased mainly in the gyrus rectus of the frontal lobe(Brodmann area 11),inferi-or frontal gyrus(Brodmann area 44)and the center of the posterior lobe of the cerebellum.The present ifndings indicate that acupuncture atTaichong andTaixi speciifcally promote blood lfow and activation in the brain areas related to vision,emotion and cognition,and inhibit brain areas related to emotion,attention,phonological and semantic processing,and memory.
