Author: Wang L, Huang T, Zhang W, Litscher G.
Affiliation: Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine and TCM Research Center Graz, Medical University of Graz, Graz, Austria.
Conference/Journal: J Acupunct Meridian Stud.
Date published: 2011 Mar
Other: Volume ID: 4 , Issue ID: 1 , Pages: 24-8 , Word Count: 151
Laser Doppler flowmetry for microcirculation monitoring was performed in 10 healthy volunteers (mean age ± SD: 24.9 ± 3.3 years; 5 females, 5 males) prior to, during, and after stimulation using a noninvasive violet (405 nm) laser needle at the Dazhui (GV14) acupoint. The results of this controlled study (control point at the shoulder) showed significant (p < 0.05) increases in Flux (product of concentration and velocity of erythrocytes) at a distance of 3 cm from the acupoint. At the same time, no changes were found at the control point. Furthermore, 5 minutes after stimulation the microcirculation still flowed at a higher level than baseline values at the beginning of the investigation. In a single individual it was demonstrated that needle acupuncture enhanced this effect and placebo (deactivated laser) did not have a significant effect. The results suggest that violet laser acupuncture at the acupoint Dazhui can increase vascular effects on microcirculation.
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