Generating-sensation and propagating-myoelectrical

The meridian phenomena are closely associated with the neuro-muscular function. Our experiments show that meridian phenomenon, acupoint stimulation-induced generating-sensations along meridians (GSM), does exist in some volunteers, and the subjects can describe the characteristics of the feelings and the route of GSM. Simultaneously, GSM is often accompanied with progressive myoelectric activity along the meridian which is able to be recorded objectively. Bra-chial plexus anesthesia and regional neuro-muscular block may arrest these responses while the neuro-muscular blocking agent may stop neuromuscular transmission at the motor end-plate rather than check GSM. The facts reveal that GSM probably depends on muscular activity and is involved in the secondary neuro-muscular excitation propagating along the longitudinal axis of muscles. These findings suggest that the myoelectric activities constitute the foundation of secondarily generating-sensation propagating along the longitudinal orientation of limbs     

Generating-sensation and propagating-myoelectrical responses along the meridian

The meridian phenomena are closely associated with the neuro-muscular function. Our experiments show that meridian phenomenon, acupoint stimulation-induced generating-sensations along meridians (GSM), does exist in some volunteers, and the subjects can describe the characteristics of the feelings and the route of GSM. Simultaneously, GSM is often accompanied with progressive myoelectric activity along the meridian which is able to be recorded objectively. Brachial plexus anesthesia and regional neuro-muscular block may arrest these responses while the neuro-muscular blocking agent may stop neuromuscular transmission at the motor end-plate rather than check GSM. The facts reveal that GSM probably depends on muscular activity and is involved in the secondary neuro-muscular excitation propagating along the longitudinal axis of muscles. These findings suggest that the myoelectric activities constitute the foundation of secondarily generating-sensation propagating along the longitudinal orientation of limbs (muscles), or along the meridian.     

经穴注射BMSCs联合中药对大鼠血清VEGF、G-CSF、SDF-1 浓度的影响

目的：前期基础实验发现经穴注射骨髓间充质干细胞联合益气活血中药对大鼠缺血后肢骨骼肌血管密度以及后肢血流恢 复具有明显促进作用,为进一步明确其机制,本研究着重经穴注射骨髓间充质干细胞（BMSCs）联合益气活血方对大鼠血清中血 管内皮细胞生长因子（VGEF）,粒细胞集落刺激因子（G-CSF）,基质细胞衍生因子-1（SDF-1）浓度的影响,从而为临床中医血管外 科防治后肢动脉缺血性疾病提供新的思路和方法。方法：25只大鼠随机分为空白对照组（CG）、下肢缺血模型组（IG）、益气活血方 缺血组（HG）、经穴注射BMSCs 缺血组（BG）,经穴注射BMSCs+ 益气活血方缺血组（BHG）,每组5 只,在给予相应干预措施后, 于7 天后取血清,用酶联免疫吸附法（ELISA）测定大鼠血清中VEGF、G-CSF、SDF-1 质量浓度。结果：①与CG比较,IG、HG、BG、 BHG 大鼠血清中VEGF、SDF-1、G-CSF浓度显著升高（P＜0.01）;②与IG 比较,HG、BG、BHG 组大鼠血清中VEGF,G-CSF浓度 显著升高（P＜0.01）,BG、BHG 大鼠血清中SDF-1 浓度显著升高（P＜0.01）;③与HG 比较,BG、BHG 大鼠血清中VEGF,SDF-1, G-CSF 浓度显著升高（P＜0.01）;④与BG比较,BHG大鼠血清中VEGF,SDF-1,G-CSF浓度显著升高（P＜0.01）,以上差异均有统 计学意义。结论：经穴注射BMSCs联合益气活血中药可大幅提升下肢缺血模型大鼠血清中VEGF、G-CSF、SDF-1 质量浓度,为 临床中医血管外科防治后肢动脉缺血性疾病提供了新的思路和方法。     

循经感传和循经肌电反应

应用电生理技术证明针刺引起循经感传现象的同时伴发有循经肌电发放, 循经感传速度和循经肌电步进速度在厘米每秒范围. 停止刺激后, 循经感传现象首先在远端消失, 并逐渐向近端推移, 与此相应, 肌电信号亦是首先在远端停止. 分别采用臂丛神经阻滞和不影响感觉系统的区域性肌肉非动化阻滞法, 循经感传和循经肌电信号一同消失, 表明这些现象有赖于感觉-运动反射活动的相互作用.     

心经经脉、心因性牵涉痛与心脏相关联系的机制

采用神经示踪剂荧光素三标记法研究了上肢内侧面(心经经脉循行线)、外侧面(肺经经脉循行线)与心脏的神经联系.结果表明,脊神经节的小量细胞的外周轴突有双分支现象,其一支分布于心脏,另一支分布于上肢;心经循行线与心脏之间的脊神经节细胞外周轴突分支支配现象更明显.与肺经穴位相比,刺激心经穴位引起更大的心交感神经兴奋,心经穴位通过心交感神经对心功能起调节作用.心交感神经刺激可引起心经穴位的最大反射性肌电反应,表明心脏功能异常的传入活动可能在心经循行线出现肌紧张反应.结果提示,心经与心脏特异性联系的基础是神经节段的相同性和神经纤维分布相对密集性;心脏传入神经与心经穴位神经支配的重叠性及反射的循经性是心因性牵涉痛的基础.     

Mechanism of relation among heart meridian,referred cardiac pain and heart

It has been demonstrated that an important clinical phenomenon often associated with visceral diseases is the referred pain to somatic structures, especially to the body area of homo-segmental innervation. It is interesting that the somatic foci of cardiac referred pain were often and mainly distributed along the heart meridian (HM), whereas the acupoints of HM have been applied to treat cardiac disease since ancient times. The purpose of this study was to investigate the neural relationship between the cardiac referred pain and the heart meridian. Fluorescent triple-labeling was injected into the pericardium, some acupoints of HM and lung meridian (LM, for control). The responses of the left cardiac sympathetic nerve and of the EMG in left HM and LM were electrophysiologically studied, when the electrical stimuli were applied to the acupoints of left HM and to the left cardiac sympathetic nerve. More double-labeled neurons in HM-heart, not in LM-heart, were observed in the ipsilateral dorsal root ganglia of the spinal segments C8-T3. Electric stimulation of the acupoints of left HM was able to elicit more responses of left cardiac sympathetic nerve than that of the LM-acupoints. Electric stimulation of the left cardiac sympathetic nerve resulted in stronger activities of EMG-response in the acupoints of left HM than in LM-acupoints. We conclude that double-labeling study has provided direct evidence for the existence of dichotomizing afferent fibers that supply both the pericardium and HM. Electrophysiological results show that HM is more closely related functionally to heart. These findings provide a possible morphological and physiological explanation for the referred cardiac pain and HM-heart interrelation.     

Mechanism of relation among heart meridian, referred cardiac pain and heart

It has been demonstrated that an important clinical phenomenon often associated with visceral diseases is the referred pain to somatic structures, especially to the body area of homo-segmental innervation. It is interesting that the somatic foci of cardiac referred pain were often and mainly distributed along the heart meridian (HM), whereas the acupoints of HM have been applied to treat cardiac disease since ancient times. The purpose of this study was to investigate the neural relationship between the cardiac referred pain and the heart meridian. Fluorescent triple-labeling was injected into the pericardium, some acupoints of HM and lung meridian (LM, for control). The responses of the left cardiac sympathetic nerve and of the EMG in left HM and LM were electrophysiologically studied, when the electrical stimuli were applied to the acupoints of left HM and to the left cardiac sympathetic nerve. More double-labeled neurons in HM-heart, not in LM-heart, were observed in the ipsilateral dorsal root gangli