BACKGROUND： The effect of acupuncture treatment on peripheral facial nerve injury is generally accepted. However, the mechanisms of action remain poorly understood. OBJECTIVE： To validate the effect of acupoint elec...BACKGROUND： The effect of acupuncture treatment on peripheral facial nerve injury is generally accepted. However, the mechanisms of action remain poorly understood. OBJECTIVE： To validate the effect of acupoint electro-stimulation on brain-derived neurotrophic factor （BDNF） mRNA expression in the facial nucleus of rabbits with facial nerve injury, with the hypothesis that acupuncture treatment efficacy is related to BDNE DESIGN, TIME AND SETTING： Peripheral facial nerve injury, in situ hybridization, and randomized, controlled, animal trial. The experiment was performed at the Laboratory of Anatomy, Heilongjiang University of Chinese Medicine from March to September 2005. MATERIALS： A total of 120 healthy, adult, Japanese rabbits, with an equal number of males and females were selected. Models of peripheral facial nerve injury were established using the facial nerve pressing method. METHODS： The rabbits were randomly divided into five groups （n = 24）： sham operation, an incision to the left facial skin, followed by suture; model, no treatment following facial nerve model establishment; western medicine, 10 mg vitamin B1, 50 ug vitamin B12, and dexamethasone （2 mg/d, reduced to half every 7 days） intramuscular injection starting with the first day following lesion, once per day; traditional acupuncture, acupuncture at Ytfeng, Quanliao, Dicang, Jiache, Sibai, and Yangbai acupoints using a acupuncture needle with needle twirling every 10 minutes, followed by needle retention for 30 minutes, for successive 5 days; electroacupuncture, similar to the traditional acupuncture group, the Yifeng （negative electrode）, Jiache （positive electrode）, Dicang （negative electrode）, and Sibai （positive electrode） points were connected to an universal pulse electro-therapeutic apparatus for 30 minutes per day, with disperse-dense waves for successive 5 days, and resting for 2 days. MAIN OUTCOME MEASURES： Left hemisphere brain stem tissues were harvested on post-operative days 7, 14, 21, and 28 under a dissecting microscope. Neuronal appearance in the facial nucleus was observed following Nissl staining. BDNF mRNA expression in the facial nucleus was determined using in situ hybridization. RESULTS： A total of 120 rabbits were included in the final analysis. In the model group, the nucleolus was asymmetric with cell body swelling, and the number of Nissl bodies decreased. With increasing time, there were more Nissl bodies in the western medicine, traditional acupuncture, and electroacupuncture groups, in particular the electroacupuncture group. However, the number of Nissl bodies remained less than in the sham operation group. The number of BDNF-positive neurons in the facial nucleus was significantly greater in the western medicine, traditional acupuncture, and electroacupuncture groups, compared with the model group （P 〈 0.01）. The number of BDNF-positive neurons in the facial nucleus of reached a minimum in the electroacupuncture group on post-surgery day 21, and increased by day 28, but remained less than control levels. CONCLUSION： Electroacupuncture at acupoints increased BDNF expression in the facial nucleus, alleviated neuronal injury in the facial nucleus, and promoted facial nerve regeneration. The effect was superior over traditional acupuncture and western medicine.展开更多
目的观察电针上肢穴位对健康受试者初级运动皮层(primary motor cortex,M1)躯干脑区皮质脊髓兴奋性的影响。方法纳入15名健康受试者,采用交叉设计。试验一观察电针上肢穴位对竖脊肌(erector spinae,ES)皮质脊髓兴奋性的影响,受试者随机...目的观察电针上肢穴位对健康受试者初级运动皮层(primary motor cortex,M1)躯干脑区皮质脊髓兴奋性的影响。方法纳入15名健康受试者,采用交叉设计。试验一观察电针上肢穴位对竖脊肌(erector spinae,ES)皮质脊髓兴奋性的影响,受试者随机先后进入3组试验,A组电针合谷穴,B组电针孔最穴,C组假针合谷穴。运用经颅磁刺激,检测干预前后对侧M1第一骨间背侧肌、桡侧腕屈肌及ES的运动诱发电位(motor evoked potentials,MEPs)的波幅和潜伏期,ES的MEPs波幅升高者进入试验二。试验二为抑制背侧前运动皮层(premotor cortex,PMd)后电针上肢穴位对ES的皮质脊髓兴奋性的作用研究,受试者随机先后进入两组试验,D组采用抑制PMd配合电针合谷穴干预,E组采用抑制PMd配合电针孔最穴干预。观察并比较两组对侧M1上肢脑区和躯干脑区MEPs的波幅和潜伏期。结果A组和B组干预后上肢脑区及躯干脑区MEPs总波幅均较同组干预前显著增加(P<0.001,P<0.01)。A组干预后上肢脑区及躯干脑区MEPs总波幅均明显高于C组,B组干预后仅躯干脑区MEPs总波幅明显高于C组,差异均具有统计学意义(P<0.001)。D组干预后上肢脑区最佳刺激点MEPs平均波幅及总波幅较同组干预前均显著增加(P<0.05)。D组和E组干预前后躯干脑区最佳刺激点的MEPs平均波幅及总波幅比较,差异也均无统计学意义(P>0.05)。结论生理状况下,电针合谷、孔最穴均可增强ES的皮质脊髓兴奋性,二者之间无明显差异,PMd可能参与其过程。展开更多
OBJECTIVE:To observe the effects of bloodletting puncture at Jing-Well points in the distal ends of the finger and toe on survival rate,survival time,and brain edema in rats with cerebral ischemia.METHODS:Fifty-four m...OBJECTIVE:To observe the effects of bloodletting puncture at Jing-Well points in the distal ends of the finger and toe on survival rate,survival time,and brain edema in rats with cerebral ischemia.METHODS:Fifty-four male Sprague-Dawley rats were randomly divided into five groups:normal,sham operation,model,bloodletting puncture at Jing-Well points in distal ends of finger and toe,and puncture without bloodletting at these points.Middle cerebral artery occlusion models were established according to Longa's method.The brains were taken 48 h after the model was established.Brain water content,brain density,brain coefficient,survival rate,and survival time in each group were measured.RESULTS:After bloodletting puncture,the survival time of the rats was prolonged,their brain water content and brain coefficient were reduced,and brain density was increased.CONCLUSION:Bloodletting puncture at Jing-Well points in the distal ends of the finger and toe can improve function in ischemic brain edema.展开更多
基金the Natural Science Foundation of Heilongjiang Province in 2004,No.D0343
文摘BACKGROUND： The effect of acupuncture treatment on peripheral facial nerve injury is generally accepted. However, the mechanisms of action remain poorly understood. OBJECTIVE： To validate the effect of acupoint electro-stimulation on brain-derived neurotrophic factor （BDNF） mRNA expression in the facial nucleus of rabbits with facial nerve injury, with the hypothesis that acupuncture treatment efficacy is related to BDNE DESIGN, TIME AND SETTING： Peripheral facial nerve injury, in situ hybridization, and randomized, controlled, animal trial. The experiment was performed at the Laboratory of Anatomy, Heilongjiang University of Chinese Medicine from March to September 2005. MATERIALS： A total of 120 healthy, adult, Japanese rabbits, with an equal number of males and females were selected. Models of peripheral facial nerve injury were established using the facial nerve pressing method. METHODS： The rabbits were randomly divided into five groups （n = 24）： sham operation, an incision to the left facial skin, followed by suture; model, no treatment following facial nerve model establishment; western medicine, 10 mg vitamin B1, 50 ug vitamin B12, and dexamethasone （2 mg/d, reduced to half every 7 days） intramuscular injection starting with the first day following lesion, once per day; traditional acupuncture, acupuncture at Ytfeng, Quanliao, Dicang, Jiache, Sibai, and Yangbai acupoints using a acupuncture needle with needle twirling every 10 minutes, followed by needle retention for 30 minutes, for successive 5 days; electroacupuncture, similar to the traditional acupuncture group, the Yifeng （negative electrode）, Jiache （positive electrode）, Dicang （negative electrode）, and Sibai （positive electrode） points were connected to an universal pulse electro-therapeutic apparatus for 30 minutes per day, with disperse-dense waves for successive 5 days, and resting for 2 days. MAIN OUTCOME MEASURES： Left hemisphere brain stem tissues were harvested on post-operative days 7, 14, 21, and 28 under a dissecting microscope. Neuronal appearance in the facial nucleus was observed following Nissl staining. BDNF mRNA expression in the facial nucleus was determined using in situ hybridization. RESULTS： A total of 120 rabbits were included in the final analysis. In the model group, the nucleolus was asymmetric with cell body swelling, and the number of Nissl bodies decreased. With increasing time, there were more Nissl bodies in the western medicine, traditional acupuncture, and electroacupuncture groups, in particular the electroacupuncture group. However, the number of Nissl bodies remained less than in the sham operation group. The number of BDNF-positive neurons in the facial nucleus was significantly greater in the western medicine, traditional acupuncture, and electroacupuncture groups, compared with the model group （P 〈 0.01）. The number of BDNF-positive neurons in the facial nucleus of reached a minimum in the electroacupuncture group on post-surgery day 21, and increased by day 28, but remained less than control levels. CONCLUSION： Electroacupuncture at acupoints increased BDNF expression in the facial nucleus, alleviated neuronal injury in the facial nucleus, and promoted facial nerve regeneration. The effect was superior over traditional acupuncture and western medicine.
基金Supported by High Technology Fund of Japanese Ministry of Education,Culture,Sports,Science and Technology:Clinical and Experimental Research on the Influence of Acupuncture and Chinese Medicine Herb on Recovery of Nerve Ending Damage(No.343) Open Fund Key Projects of Zhejiang Provincial Top Key Discipline of Acupuncture and Massage(No.ZTK2010A07)
文摘OBJECTIVE:To observe the effects of bloodletting puncture at Jing-Well points in the distal ends of the finger and toe on survival rate,survival time,and brain edema in rats with cerebral ischemia.METHODS:Fifty-four male Sprague-Dawley rats were randomly divided into five groups:normal,sham operation,model,bloodletting puncture at Jing-Well points in distal ends of finger and toe,and puncture without bloodletting at these points.Middle cerebral artery occlusion models were established according to Longa's method.The brains were taken 48 h after the model was established.Brain water content,brain density,brain coefficient,survival rate,and survival time in each group were measured.RESULTS:After bloodletting puncture,the survival time of the rats was prolonged,their brain water content and brain coefficient were reduced,and brain density was increased.CONCLUSION:Bloodletting puncture at Jing-Well points in the distal ends of the finger and toe can improve function in ischemic brain edema.
