Influence of Neuronal Excitation and Inhibition of Rostral Ventrolateral Medulla on the Effect of Electroacupuncture of“Neiguan”Acupoint[J]. Acupuncture research, 1996, (1): 34-38.
Influence of Neuronal Excitation and Inhibition of Rostral Ventrolateral Medulla on the Effect of Electroacupuncture of“Neiguan”Acupoint[J]. Acupuncture research, 1996, (1): 34-38.DOI:
Experiments were performed on 44 rabbits anesthetized with a mixture of urethane and chloralose. The effects of microinjection of glutamate and glycine in bilateral rostral ventrolateral medulla (rVLM) on the reaction of electroacupuncture (EA) of "Neiguan" acupoint (PC 6) after myocardial ischemia by ligature of the left ventricular branch of coronary artery were observed. ResuIts showed that (1) EA could significanily promote the recovery of ECG ST-segments
mean blood pressure (MBP)
left ventricular pressure (LVP) and the maximum rising rate of LVP (dp/dt max) ;(2) Glutamate could enhance the effects of EA on MBP
LVP and dp/dt max to a certain extent; (3) The effects of EA could be weakened significantly by glycine. It suggests that EA-induced improvement of the cardiovascular function can be strengthened further in some degree when neurons of rVLM are excited and weakened pronouncedly while the neurons are inhibited. Therefore
rVLM participates in the regulatory process of EA on functional activity of the heart