Resuscitating acupuncture therapy for glucose metabolism in acute cerebral infarction of basal ganglia

BACKGROUND： Acupuncture can improve motor function in patients with cerebral infarction, and activate brain glucose metabolism in relevant brain areas. However, the association between encephalic region activation and acupuncture, as well as the clinical significance of activation remain unclear. OBJECTIVE： Through the use of positron emission tomography-computed tomography （PET-CT）, acute cerebral infarction patients were analyzed for global cerebral metabolism, cerebral infarction focus, peripheral edema, and pyramidal tract pathway changes, which were directly related to clinical symptoms. The influence of resuscitating acupuncture on cerebral glucose metabolism was analyzed in patients with acute cerebral infarction in basal ganglia. DESIGN, TIME AND SETTNG： Randomized, controlled, clinical trials were performed from March 2007 to October 2008 at the PET-CT Center of the General Hospital of Tianjin Medical University, China. PARTICIPANTS： Twelve patients with acute basal ganglia infarction were recruited from the First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, the Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin Chinese Medicine Hospital, and Affiliated Hospital of Medical College of Chinese People＇s Armed Police Force. METHODS： The cerebral infarcted patients were randomly assigned to acupuncture and control groups. In addition to routine treatment, the acupuncture group was treated by acupuncture at the main acupoints for resuscitation [Neiguan （PC 6）, Renzhong （DU 26）, and Sanyinjiao （SP 6）], while the control group received routine treatment. MAIN OUTCOME MEASURES： Before and after treatment, patients with acute cerebral infarction were evaluated for global brain, cerebral infarction focus, and surrounding edema and glucose metabolism in encephalic region of pyramidal tract conduction by 18-labeled fluorodeoxyglucose for PET-CT imaging. RESULTS： The resuscitating acupuncture therapy can significantly activate the metabolism of global brain, infarction center and surrounding edema in patients with cerebral infarction in basal ganglia, also has effects on the activation of glucose metabolism in the encephalic regions of pyramidal tract pathway （P 〈 0.05）. CONCLUSION： Resuscitating acupuncture was superior to routine treatment for significantly activating glucose metabolism in patients with acute cerebral basal ganglia infarction.

Voxel-based statistical analysis of cerebral glucose metabolism in patients with permanent vegetative state after acquired brain injury

Background Permanent vegetative state is defined as the impaired level of consciousness longer than 12 months after traumatic causes and 3 months after non-traumatic causes of brain injury. Although many studies assessed the cerebral metabolism in patients with acute and persistent vegetative state after brain injury, few studies investigated the cerebral metabolism in patients with permanent vegetative state. In this study, we performed the voxel-based analysis of cerebral glucose metabolism and investigated the relationship between regional cerebral glucose metabolism and the severity of impaired consciousness in patients with permanent vegetative state after acquired brain injury.Methods We compared the regional cerebral glucose metabolism as demonstrated by F-18 fluorodeoxyglucose positron emission tomography from 12 patients with permanent vegetative state after acquired brain injury with those from 12 control subjects. Additionally, covariance analysis was performed to identify regions where decreased changes in regional cerebral glucose metabolism significantly correlated with a decrease of level of consciousness measured by JFK-coma recovery scare. Statistical analysis was performed using statistical parametric mapping.Results Compared with controls, patients with permanent vegetative state demonstrated decreased cerebral glucose metabolism in the left precuneus, both posterior cingulate cortices, the left superior parietal lobule （Pcorrected 〈0.001）, and increased cerebral glucose metabolism in the both cerebellum and the right supramarginal cortices （Pcorrected 〈0.001）. In the covariance analysis, a decrease in the level of consciousness was significantly correlated with decreased cerebral glucose metabolism in the both posterior cingulate cortices （Puncorrected 〈0.005）.Conclusion Our findings suggest that the posteromedial parietal cortex, which are part of neural network for consciousness, may be relevant structure for pathophysiological mechanism in patients with permanent vegetative state after acquired brain injury.

EFFECT OF ELECTRO-SCALP ACUPUNCTURE ON GLUCOSE METABOLISM OF THE CEREBRAL REGIONS INVOLVING MENTAL ACTIVITY IN HEALTHY PEOPLE

Objective: To observe the effect of electro-scalp acupuncture on glucose metabolism of cerebral regions involving mental activity in healthy people. Methods: A total of 6 cases of volunteer healthy subjects (3 males and 3 females) ranging in age from 22 to 36 years were subjected to this study. Changes of cerebral glucose metabolism before and after electro-scalp acupuncture were observed by using positron emission tomography (PET) and semi-quantifying analysis method. Electro-scalp acupuncture stimulation (50 Hz, 2 mA) of Middle Line of Vertex (Ding zhongxian,顶中线,MS5), Middle Line of Forehead (Ezhongxian, 额中线,MS1) and bilateral Lateral Line 1 of Forehead (Epangyixian,额旁一线,MS2) was administered for 30 minutes. Then cerebral regions of interest (ROIs) were chosen and their average glucose metabolism levels (radioactivity of 18 fluorine deoxyglucose) were analyzed. Results: After administration of electro-scalp acupuncture, the glucose metabolism levels in bilateral frontal lobes and bilateral caudate nuclei, left cingulate gyrus and right cerebellum increased significantly in comparison with those of pre stimulation (P<0.05). Conclusion: Electro-scalp acupuncture of MSI, MS2 and MS5 can increase the glucose metabolism of certain cerebral regions involving mental activity in healthy subjects.