Chen Ming, Hu Xiang-long, Wu Zu-xing
Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, China.
Zhen Ci Yan Jiu. 2008 Dec;33(6):402-5.
To observe changes of the partial oxygen pressure (PO2) of deep tissues along the Governor Vessel and during acupuncture, so as to probe into the characteristics of energy metabolism in the deep tissues along the meridian track.
Thirty-one healthy volunteers were enrolled in the present study. PO2 values in Zhongshu (GV 7), Zhiyang (GV 9) and Mingmen (GV 4) of the Governor Vessel, and 2 non-acupoints (below the 4th and the 12th vertebrae respectively) were detected by using a three-channels needle-type sensor inserted into the tissues about 1.5 cm deep under the skin. The detection was conducted continuously for 60 minutes before, during and after electroacupuncture (EA, 2 Hz, 20 min) stimulation of Yaoyangguan (GV 3).
At normal state (before EA), PO2 values were (10.98 +/- 5.81) kPa in Governor Vessel (GV 4, GV 7 and GV 9), being significantly higher than those [(5.00 +/- 3.88) kPa, (4.74 +/- 4.23) kPa] of the left and the right control points separately. During acupuncture of GV3, PO2 value [(9.36 +/- 5.99) kPa] in Governor Vessel decreased significantly in comparison with that of pre-EA; while those [(5.83 +/- 4.75) kPa and (5.58 +/- 15.28) kPa] in the left and the right control points had no obvious changes (P>0.05). And after acupuncture, the reading of PO2 was (8.62 +/- 5.11) kPa along the Governor Vessel being comparable to that of EA-period, and those [(5.74 +/- 4.76) kPa and (5.61 +/- 5.45) kPa] in the left and the right control points still had no obvious changes.
PO2 in the deep tissues along the Governor Vessel is significantly higher than those of its bilateral control points, and decreases during and after EA, displaying a more vigorous energy metabolism in the deep tissues along the Governor Vessel in normal state, and up-regulation after EA.
观察督脉深层组织氧分压（PO2）在针刺过程中的变化，以探讨经络线深层组织能量代谢特点。
选取31名健康志愿者。使用三通道针型传感器插入皮肤下约1.5 cm深处的组织，检测督脉的中枢（GV 7）、至阳（GV 9）和命门（GV 4）以及2个非穴位（分别在第4和第12胸椎下方）的PO2值。在电针（EA，2 Hz，20分钟）刺激腰阳关（GV 3）之前、期间和之后连续检测60分钟。
在正常状态（EA前），督脉（GV 4、GV 7和GV 9）的PO2值为（10.98±5.81）kPa，显著高于左侧和右侧对照点的PO2值[分别为（5.00±3.88）kPa、（4.74±4.23）kPa]。在针刺GV3期间，督脉的PO2值[（9.36±5.99）kPa]与EA前相比显著降低；而左侧和右侧对照点的PO2值[（5.83±4.75）kPa和（5.58±15.28）kPa]无明显变化（P>0.05）。针刺后，督脉沿线的PO2读数为（8.62±5.11）kPa，与针刺期间相当，左侧和右侧对照点的PO2值[（5.74±4.76）kPa和（5.61±5.45）kPa]仍无明显变化。
督脉深层组织的PO2显著高于其双侧对照点，在针刺期间及针刺后降低，表明在正常状态下督脉深层组织能量代谢更旺盛，针刺后能量代谢上调。
