Effect of Vasomotion on Blood Flow Distribution in Microvessels

Shao, Jia-Cun; Liu, Yang; Su, Zhi

doi:10.1007/978-3-662-48868-3_47

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…The blood perfusion has been demonstrated to be higher at acupoints and on certain parts of meridians [5,23]. Although the physiological role of microvascular vasomotion remains unclear, it has been shown to enhance blood ow and nutrient delivery [9,24]. The synchronous vasomotion suggested that the majority of skin microvessels at acupoints worked as a whole, which would release more energy than an irregular one.…”

Section: Discussionmentioning

confidence: 99%

“…Higher microcirculation blood perfusion has been well characterized in some studies [4][5][6]. Vasomotion is the spontaneous rhythmic oscillation in microvascular diameter, independent of heartbeat, respiration or nerve input [7], which at least regulates local blood ow and material exchanges between the vascular system and surrounding tissues [9,10]. However, as a functional status sign of microcirculation, microvascular vasomotion received little attention.…”

Section: Introductionmentioning

confidence: 99%

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Skin microvascular vasomotion is synchronous at acupoints of beagle dogs

Zhang

et al. 2020

Preprint

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Background/purpose: Skin microvessels at acupoints have been documented to be more abundant and well-organized, and the synchronous microvascular vasomotion was detected at acupoints in our previous human study. This present study aimed to characterize the skin microvascular vasomotion at acupoints on the twelve meridians of beagle dogs. Materials and Methods: Two acupoints were selected on each meridian, and exactly located at the rosy red spots by an electrochemical color-appearing method, where the electrical resistance was measured. The skin blood flow at acupoints was recorded by laser Doppler flowmetry (LDF), and microvascular vasomotion was analyzed according to LDF waveforms. Results: The skin electrical resistance at acupoints was significantly lower than that at control non-acupoints. The LDF waveforms at acupoints was sinusoidal, which showed the synchronization of the microvascular vasomotion. The spectral analysis revealed that the vasomotion frequencies at acupoints on the same meridian were identical but not among different meridians, and the frequencies on the twelve main meridians displayed a constant order. Conclusion: The skin microvascular vasomotion is synchronous at acupoints of beagle dogs and has a specific frequency along the meridian, and the electrochemical color-appearing method is a feasible strategy for the precise and visual location of acupoints. The study provides evidence for the universality of synchronous vasomotion of skin microvessels at acupoints and contributes to clarifying the essence of acupoints and their effect mechanism.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Skin microvascular vasomotion is synchronous at acupoints of beagle dogs

Zhang

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…5,20 Although the physiological role of microvascular vasomotion remains unclear, it has been shown to enhance blood flow and nutrient delivery. 6,21 The synchronous vasomotion suggested that the majority of skin microvessels at acupoints worked as a whole, which would release more energy than an irregular one. More energy and higher blood perfusion should be able to meet the needs of Qi and blood infusion.…”

Section: Discussionmentioning

confidence: 99%

Synchronous vasomotion of skin microvessels at acupoints on the twelve main meridians of beagle dogs

Zhang

et al. 2020

Skin Research and Technology

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Skin microvessels at acupoints and along meridians have been documented to be more abundant and more well-organized. 1-3 The unusual morphology suggests their close relation with acupoints and meridians and that they may have some particular functional characteristics. Higher microcirculation blood perfusion has been well characterized in some studies. 4,5 Vasomotion is the spontaneous rhythmic oscillation in microvascular diameter, independent of heartbeat, respiration, or nerve input, which at least regulates local blood flow and material exchanges between the vascular system and surrounding tissues. 6,7 However, as a functional status sign of microcirculation, microvascular vasomotion received little attention. Microvascular vasomotion is commonly measured using laser Doppler flowmetry (LDF), 8,9 and generally, its LDF waveforms are seemingly irregular. Interestingly, however, the sinusoidal waveforms of skin microvascular vasomotion were recorded at human acupoints in our previous studies. 10 We speculated that the special vasomotion

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Effect of Vasomotion on Blood Flow Distribution in Microvessels

Cited by 2 publications

References 4 publications

Skin microvascular vasomotion is synchronous at acupoints of beagle dogs

Skin microvascular vasomotion is synchronous at acupoints of beagle dogs

Synchronous vasomotion of skin microvessels at acupoints on the twelve main meridians of beagle dogs

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