Electrical acupuncture modifies autonomic balance by resetting the neural arc of arterial baroreflex system.
Contribution of abnormal cardiovascular regulation to the maintenance and progression of heart failure has been repeatedly demonstrated. Besides the current therapeutic modalities, development of an additional therapeutic strategy is needed. We have been developing a bionic system, an artificial device designed for integration into native physiological systems. By communicating with the physiological regulatory system, we tried to not only restore lost function but also correct abnormal function. We have already shown that modification of autonomic balance by direct electrical vagal stimulation has inhibited cardiac remodeling, and improved survival in rats. Because the benefit of the correction of autonomic balance would be greatly enhanced if available by a less invasive method, we examined the possibility of modifying the autonomic balance by electrical acupuncture. The results indicated that electrical acupuncture resets the neural arc of the arterial baroreflex (SNA response range decreases from 144.0+/-35.0 to 112.6+/-9.2, p<0.005) and is able to attenuate sympathetic nerve activity.
Sugimachi
Masaru
M
National Cardiovascular Center Research Institute, Suita, Osaka, Japan. su91mach@ri.ncvc.go.jp
Kawada
Toru
T
Kamiya
Atsunori
A
Li
Meihua
M
Zheng
Can
C
Sunagawa
Kenji
K
D000200:Action Potentials / Q000502:physiology; D000222:Adaptation, Physiological / Q000502:physiology; D000818:Animals; D001341:Autonomic Nervous System / Q000502:physiology*; D017704:Baroreflex / Q000502:physiology*; D001794:Blood Pressure / Q000502:physiology*; D015671:Electroacupuncture / Q000379:methods*; D005246:Feedback / Q000502:physiology; D006706:Homeostasis / Q000502:physiology*; D011817:Rabbits; D014630:Vagus Nerve / Q000502:physiology*