| Summary: | 碩士 === 中國醫藥學院 === 中國醫學研究所 === 86 === According to the concepts of meridian theory in traditional Chinese medicine, we were noted that each channel had it''s own cutaneous territory. For proving the specificity of the individual channel, lots of scholars have applied kinds of methodology such as observing propagation phenomenon or measuring electrical properties on the associated studies in recent decades, but yet left many unresolved puzzles in this field till now.
The purpose of this study is for discussing the belonging of cutaneous microcirculation to the meridian system and the differences of cutaneous microcirculation between finger pulp and elbow portion in the same meridian system. We selected 16 healthy male medical students; all were volunteers, as our samples. We used Laser Doppler flowmetry to measure the cutaneous microcirculation, and the blood perfusion, concentration of the moving blood cells, velocity as well as the energy index to be the parameters in our study. Everybody accepted the following three groups of tests at first: 1) no stimulation was performed, 2) stimulation on the Hoku acupoint by 2Hz electroacupuncture, 3) stimulation on the point 3cm lateral to Hoku acupoint by 2Hz electroacupuncture. In group 1,2, and 3, we measured the cutaneous microcirculation of collateral acupoints on LI-1 and LI-11 in large-intestine meridian. Then we designed the fourth group: stimulation on the Hoku acupoint by 2Hz electroacupuncture, followed by measuring the cutaneous microcirculation of LI-11 and Lu-5 belonging respectively to different channels on the same side. Each group, at least 3 days apart, was subdivided by 20 minutes interval into 3 periods: pre-acupuncture, acupuncture and post-acupuncture.
Our results revealed that: in the resting state, the perfusion, concentration of moving blood cells and kinetic energy measured in the cutaneous portion of LI-1 were more than those measured in the cutaneous portion of LI-11. Moreover, changes of cutaneous microcirculations in both LI-1 and LI-11 acupoints could be induced by stimulating either Hoku acupoint or non-acupoint nearby, but the patterns of changes between them were not similar. Likewise, the patterns of stimulation-induced microcirculatory effects were different between LI-11 and Lu-5 while stimulating on the same Hoku acupoint.
Our conclusions are: 1) the fact that more perfusion, concentration of moving blood cells and kinetic energy being found in the microcirculations of LI-1 than those of LI-11 in resting state might be the result of the existence of AVAs on the finger pulp. 2) the different patterns of cutaneous microcirculations changes in LI-1 and LI-11 induced by the stimulation on both Hoku acupoint and non-acupoint nearby, and the different ones between LI-11 and LI-1 under the same stimulation both represented the specificity of the effect of acupoint stimulation and the belonging of cutaneous microcirculations to the associated meridian system.
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