Liu W, Xu G
Institute of Acupuncture and Meridian, Anhui College of T C M, Hefei.
Zhen Ci Yan Jiu. 1990;15(3):187-90.
This investigation was performed with thirty adult rabbits which divided auricular vagus, great auricular, cervical sympathetic and all auricular denervation. By gastrointestinal electro-physiologic methods, the changes of gastrointestinal electric activity in corpus, antrum, duodenum and colon were observed with car needing to evaluate the mechanism of function of auricular point.
In intact car innervation, the changes of gastrointestinal electric activity on ear needling were obvious (P less than 0.05-0.01). While the one with ear nerve selected showed that influence of ear acupuncture still remained, but when the whole auricle was denervated the influence of ear needling on gastrointestinal electric activity obviously deceased or disappeared. pro- and post needing the changes on gastrointestinal electric activity were not statistically different (P greater than 0.05). Recordings at the four parts of digestive tract gave similar results in frequency, amplitude, motility index, action area integral. Exerting stimulation on gastric vagus or sympathetic nerves could bring about double phase modulatory (excitatory or inhibitory). The above revealed that the functions of ear point in diagnosis and therapy is not due to one kind of nerves in periphery. The functions of ear point at innervation may be in its entirety. It was reported that function of ear points has something to do with auricular vagus or great auricular or sympathetic nerves, but, this is only one side of the matter. Moreover, since auricular point are associated with various propagation tracts and with modulation of nerve centers, their mechanism is very complicated and needs to be further studies.
本研究对30只成年兔进行了耳迷走神经、耳大神经、颈交感神经切断及全耳去神经支配。采用胃肠电生理方法，观察了针刺耳部时胃体、胃窦、十二指肠和结肠胃肠电活动的变化，以探讨耳穴功能机制。
在耳部神经完整支配时，针刺耳部对胃肠电活动的影响明显（P<0.05-0.01）。选择性切断耳部神经时，针刺耳部的影响仍存在，但全耳去神经支配后，针刺耳部对胃肠电活动的影响明显减弱或消失。针刺前后胃肠电活动变化无统计学差异（P>0.05）。消化道四个部位的记录在频率、幅度、运动指数、动作面积积分方面结果相似。刺激胃迷走神经或交感神经可产生双相调制（兴奋或抑制）。上述结果表明，耳穴的诊断和治疗功能并非源于外周的某一种神经。耳穴在有神经支配时的功能可能是整体性的。有报道称耳穴功能与耳迷走神经、耳大神经或交感神经有关，但这只是问题的一个方面。此外，由于耳穴与各种传导通路及神经中枢调制有关，其机制非常复杂，有待进一步研究。
