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Sympathetic-Sensory Coupling as a Potential Mechanism for Acupoints Sensitization
Xiang Cui1, Ziyi Zhang1,2, Hanqing Xi1
1Department of Physiology, Institute of Acupuncture and Moxibustion, Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China.
Acupoint sensitization, linked to visceral disorders, involves sensory changes. Sympathetic nerve sprouting and coupling with sensory neurons may explain these mechanisms and offer therapeutic potential.
Area of Science:
- Neuroscience
- Pain Research
- Acupuncture Studies
Background:
- Acupoint sensitization is observed in visceral disorders, characterized by hypersensitivity and plasticity.
- Mechanisms underlying acupoint sensitization are not fully understood.
- Nociceptors innervating acupoints are implicated in sensitization.
Purpose of the Study:
- To review current knowledge on sympathetic nerve involvement in pain modulation.
- To discuss the role of sympathetic sprouting in acupoint sensitization.
- To highlight the potential of sympathetic-sensory coupling in acupoint plasticity.
Main Methods:
- Literature review of neuroanatomy and pain modulation studies.
- Analysis of research on sympathetic nerve sprouting and sensory neuron interactions.
- Discussion of functional plasticity at acupoints.
Main Results:
- Sympathetic nerves play a key role in modulating sensory transmission.
- Sympathetic nerve sprouting and coupling with sensory neurons form functional sympathetic-sensory couplings.
- Disease-induced sensitized acupoints involve sensory inputs contributing to homeostasis and acupuncture therapy.
Conclusions:
- Sympathetic nerve sprouting is a crucial factor in acupoint sensitization.
- Sympathetic-sensory coupling offers a potential mechanism for acupoint functional plasticity.
- Further attention to sprouted sympathetic nerves in acupoint function is warranted for therapeutic insights.
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