【摘要】 丘脑后核(PO)和丘脑腹后外侧核(VPL)的神经元按其对伤害性刺激的不同反应型式可分为以下三种类型:痛兴奋神经元、痛抑制神经元和痛无关神经元。电针“足三里”可抑制痛兴奋神经元的自发及(或)痛诱发放电活动,减弱或消除痛抑制神经元的痛抑制反应,而对痛无关神经元的电活动无明显影响。此工作可能有助于阐明PO和VPL在痛觉传递和整合中的地位以及针刺镇痛的机理。更多还原

【Abstract】 There are three types of neurons in the posterior nucleus of thalamus (PO) and nucleus ventralis posterior lateralis (VPL) according to the reaction of these neurons to noxious stimulation: pain-excited neurons, pain-inhibited neurons and pain-nonrelated neurons. Electro-acupuncture could block their reactions to these noxious stimuli.The significance of the results in pain physiology and acupuncture analgesia was discussed.更多还原