电针对兔胸髓背角神经元电活动的影响  

Influence of Electroacupuncture on Electrical Activity of Dorsal Horn Neurons of the Thoracic Spinal Cord in the Rabbit

作　　者：刘俊岭[1] 韩振京[1] 陈淑萍[1] 曹庆淑[1] 

机构地区：[1]中国中医研究院针灸研究所,北京100700

出　　处：《针刺研究》1993年第4期267-270,共4页Acupuncture Research

基　　金：国家自然科学基金

摘　　要：在氯醛糖-乌拉坦麻醉的家兔上,分析了电针对脊髓 T_2-T_3背角神经元电活动的影响。结果为:1)电针“内关”后,31个背角神经元中有11个放电频率显著增加,4个显著减少,16个没明显变化;2)电针“足三里”后,28个神经元中仅有2个放电频率显著增加,14个显著减少,12个没有显著变化;3)在同一神经元上对电针“内关”和“足三里”都产生反应的6个神经元中,5个电针“内关”时呈兴奋性反应,而电针“足三里”呈抑制性反应,另1个对两者均呈抑制性反应;4)检查了18个神经元的感受野及生理学类型。这表明胸髓背角可接受来自“内关”和“足三里”穴区的信息,不同穴区有相对特异性作用。In the present paper,influence of electroacupuncture(EA)on electrical activity of neurons ofdorsal horns of T(?)-T_3 spinal segments was analysed in chloralose-urethane anesthetized rahbits.Re-sults were:1).after EA of“Neiguan”(PC 6),of the 31 dorsal horn neurons,11 increased signifi-cantly in their firing rate,4 decreased obviously and other 16 had no marked change;2).after EA of“Zusanli”(ST 36),of the 28 neurons,only 2 increased significantly in firing rate,14 dereased andother 12 had no clear change;3).of the 6 neurons which all responded to EA of“Neiguan”(PC 6)and“gusanli”(ST 36),5 were excited by“Neiguan”(PC 6)and suppressed by“Zusanli(ST 36);the other one was inhibited by both;4).the receptive field on the body surface and physiologicaltypes of 18 neurons were also examined.The results indicate that information from EA of“Neiguan”and“Zusanli”can converge to the neurons of dorsal horns of T_2-T_3 spinal cord,and different acu-points have a relative specificity.

关 键 词：电针 穴位特异性 胸髓背角 神经元 

分 类 号：R245.97[医药卫生—针灸推拿学]