针刺镇痛机制的探讨

Study on mechanisms of acupuncture analgesia

针刺镇痛涉及整个神经系统各部的功能,脊髓是初步对针刺镇痛处理、译释的第一站;脑干是针刺镇痛信息整理、辨析、激发、综合、承上启下的中继站,对针刺镇痛起到重要作用;丘脑部分对各种信息的复杂分析,综合调整,有多种神经体液参与,是加强针刺镇痛和控制镇痛的协调中枢;边缘系统及其核团和多种神经介质参与,对针刺镇痛起到协调作用;大脑皮层是最高中枢,对针刺镇痛不单是兴奋和抑制过程,而且是一个复杂的调整、指挥中枢,既能加强镇痛,又能抑制其太过,起到保持动态平衡的作用。

Acupuncture analgesia is involved in various functions of the whole nervous system. The spinal cord is the first station for processing and translating the acupuncture analgesia; the brain stem is the relay station for systematization, differentiation and analysis, excitation, synthesis of acupuncture analgesic message, playing an important role in acupuncture analgesia; the thalamus functions complicated analysis and comprehensive regulation on various messages with many kinds of neurohumoral factors involVed and it is a coordinate center for strengthening and controlling acupuncture analgesia; the limbic system and its nuclear groups with many neurotransmitters involved, play coordinate action on acupuncture analgesia; the cerebral cortex is the high center and functions not only excita tion and inhibition processes, but also is a center for complicated regulation and command, strengthening acupuncture analgesia and inhibiting the excess, so as to exerts interaction of dynamic balance.