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System identification algorithm analysis of acupuncture effect on mean blood flux of contralateral hegu acupoint.

Wang G, Han J, Litscher G, Zhang W - Evid Based Complement Alternat Med (2012)

Bottom Line: Conclusions and Significance.This paper indicates that the Hegu acupoint has lateralized specificity.After stimulating the ipsilateral Hegu acupoint, symmetry breaking will be produced in contrast to contralateral Hegu acupoint stimulation.

View Article: PubMed Central - PubMed

Affiliation: Department of Biomedical Engineering, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China.

ABSTRACT
Background. Acupoints (belonging to 12 meridians) which have the same names are symmetrically distributed on the body. It has been proved that acupoints have certain biological specificities different from the normal parts of the body. However, there is little evidence that acupoints which have the same name and are located bilaterally and symmetrically have lateralized specificity. Thus, researching the lateralized specificity and the relationship between left-side and right-side acupuncture is of special importance. Methodology and Principal Findings. The mean blood flux (MBF) in both Hegu acupoints was measured by Moor full-field laser perfusion imager. With the method of system identification algorithm, the output distribution in different groups was acquired, based on different acupoint stimulation and standard signal input. It is demonstrated that after stimulation of the right Hegu acupoint by needle, the output value of MBF in contralateral Hegu acupoint was strongly amplified, while after acupuncturing the left Hegu acupoint, the output value of MBF in either side Hegu acupoint was amplified moderately. Conclusions and Significance. This paper indicates that the Hegu acupoint has lateralized specificity. After stimulating the ipsilateral Hegu acupoint, symmetry breaking will be produced in contrast to contralateral Hegu acupoint stimulation.

No MeSH data available.


Confirmation of Hegu acupoint. (a) left hand, (b) right hand.
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fig3: Confirmation of Hegu acupoint. (a) left hand, (b) right hand.

Mentions: The Mean Blood Flux (MBF) of LI4 on both hands (left side abbreviated as L, right side abbreviated as R) was measured (Figure 3). In order to exclude the nonspecific effect of acupuncture practice, a total of 10 data from the post-0-minute phase were excluded from the final analysis (Figure 2). We symbolized left acupuncture group, right acupuncture group, and control group as A, B, and C, respectively. So for every person, there are 60 pairs of data acquired. For every group, there are 2400 pairs of data acquired. We denoted the mapping relationship of these data pairs, namely, mapping relationship from {AL⁡} to {AR}, from {BL} to {BR}, from {CL} to {CR} as {AL⁡} → {AR}, {BL} → {BR} and {CL} → {CR}, and summarized as .


System identification algorithm analysis of acupuncture effect on mean blood flux of contralateral hegu acupoint.

Wang G, Han J, Litscher G, Zhang W - Evid Based Complement Alternat Med (2012)

Confirmation of Hegu acupoint. (a) left hand, (b) right hand.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3368203&req=5

fig3: Confirmation of Hegu acupoint. (a) left hand, (b) right hand.
Mentions: The Mean Blood Flux (MBF) of LI4 on both hands (left side abbreviated as L, right side abbreviated as R) was measured (Figure 3). In order to exclude the nonspecific effect of acupuncture practice, a total of 10 data from the post-0-minute phase were excluded from the final analysis (Figure 2). We symbolized left acupuncture group, right acupuncture group, and control group as A, B, and C, respectively. So for every person, there are 60 pairs of data acquired. For every group, there are 2400 pairs of data acquired. We denoted the mapping relationship of these data pairs, namely, mapping relationship from {AL⁡} to {AR}, from {BL} to {BR}, from {CL} to {CR} as {AL⁡} → {AR}, {BL} → {BR} and {CL} → {CR}, and summarized as .

Bottom Line: Conclusions and Significance.This paper indicates that the Hegu acupoint has lateralized specificity.After stimulating the ipsilateral Hegu acupoint, symmetry breaking will be produced in contrast to contralateral Hegu acupoint stimulation.

View Article: PubMed Central - PubMed

Affiliation: Department of Biomedical Engineering, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China.

ABSTRACT
Background. Acupoints (belonging to 12 meridians) which have the same names are symmetrically distributed on the body. It has been proved that acupoints have certain biological specificities different from the normal parts of the body. However, there is little evidence that acupoints which have the same name and are located bilaterally and symmetrically have lateralized specificity. Thus, researching the lateralized specificity and the relationship between left-side and right-side acupuncture is of special importance. Methodology and Principal Findings. The mean blood flux (MBF) in both Hegu acupoints was measured by Moor full-field laser perfusion imager. With the method of system identification algorithm, the output distribution in different groups was acquired, based on different acupoint stimulation and standard signal input. It is demonstrated that after stimulation of the right Hegu acupoint by needle, the output value of MBF in contralateral Hegu acupoint was strongly amplified, while after acupuncturing the left Hegu acupoint, the output value of MBF in either side Hegu acupoint was amplified moderately. Conclusions and Significance. This paper indicates that the Hegu acupoint has lateralized specificity. After stimulating the ipsilateral Hegu acupoint, symmetry breaking will be produced in contrast to contralateral Hegu acupoint stimulation.

No MeSH data available.