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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.


Mapping value distribution of standard input in different models.
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fig5: Mapping value distribution of standard input in different models.

Mentions: The output distribution is shown in Figure 5(b). To exclude the possibility that these results were lateralized to one side, we defined the original fAR(k), fBR(k), fCR(k) as input, fAL⁡(k), fBL(k), fCL(k) as output, respectively, summarized as . Then the system identification algorithm was carried out with MATLAB software again, and the other 3 models were produced. When the same standard signals were input into the different models, the distribution of output was produced (Figure 5(a)). Mapping value distribution center and signal-noise ratio in different groups were shown in Table 2.


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)

Mapping value distribution of standard input in different models.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

fig5: Mapping value distribution of standard input in different models.
Mentions: The output distribution is shown in Figure 5(b). To exclude the possibility that these results were lateralized to one side, we defined the original fAR(k), fBR(k), fCR(k) as input, fAL⁡(k), fBL(k), fCL(k) as output, respectively, summarized as . Then the system identification algorithm was carried out with MATLAB software again, and the other 3 models were produced. When the same standard signals were input into the different models, the distribution of output was produced (Figure 5(a)). Mapping value distribution center and signal-noise ratio in different groups were shown in Table 2.

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.