【摘要】 用神经内微记录（ＩＮＭＲ）方法，观察了糖尿病性神经病患者桡神经浅支中Ａβ机械感受性单位、Ａδ单位的机械阈值和传导速度（ＣＶ）的变化及交感传出对它们的影响。与对照组相比，发现患者的Ａβ机械感受性单位和Ａδ单位的ＣＶ显著减慢，Ａδ单位的机械阈值明显降低。用心算的方法兴奋支配皮肤的交感神经后，能使少数Ａδ单位由静息状态进入活动状态，或机械阈值降低。更多还原

【Abstract】 By means of intraneural microrecording (INMR), changes of mechanical threshold and conduction velocity (CV) of Aβ mechanical receptive units and Aδ units of the superficial branch of the radial nerve and their response to sympathetic efferent were studied in 8 diabetic neuropathic patients. The results showed that the CV of these units was significantly decreased, and so was the mechanical threshold of Aδ units. During the aftermath of excitation of the skin sympathetic nerve by mental arithmetics, 3/1 2 Aδ units were turned to the active state with decreased mechanical threshold.更多还原