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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.


Flow diagram of system identification algorithm.
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fig4: Flow diagram of system identification algorithm.

Mentions: Under the condition of , totally 2400 × 3 pairs of data were acquired and symbolized as fAL⁡(k), fBL(k), fCL(k), fAR(k), fBR(k), fCR(k), k = 1,2,…, 2400, where A represents left acupuncture group; B represents right acupuncture group; C represents control group; L represents left Hegu acupoint; R represents right Hegu acupoint; k = 1,2,…, 2400. Then, we determined fAL⁡(k), fBL(k) and fCL(k), as input and fAR(k), fBR(k), and fCR(k) as output, respectively. System identification algorithm was performed in the Matlab software (Version: 6.5). The flow diagram of system identification algorithm is shown in Figure 4.


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)

Flow diagram of system identification algorithm.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

fig4: Flow diagram of system identification algorithm.
Mentions: Under the condition of , totally 2400 × 3 pairs of data were acquired and symbolized as fAL⁡(k), fBL(k), fCL(k), fAR(k), fBR(k), fCR(k), k = 1,2,…, 2400, where A represents left acupuncture group; B represents right acupuncture group; C represents control group; L represents left Hegu acupoint; R represents right Hegu acupoint; k = 1,2,…, 2400. Then, we determined fAL⁡(k), fBL(k) and fCL(k), as input and fAR(k), fBR(k), and fCR(k) as output, respectively. System identification algorithm was performed in the Matlab software (Version: 6.5). The flow diagram of system identification algorithm is shown in Figure 4.

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.