Zhen Ci Yan Jiu. 1995 ; 20(2): 28-32.
[Influence of thoracic spinal subarachnoid microinjection of noradrenaline on the effect of electroacupuncture]
Institute of Acupuncture & Moxibustion, China Academy of Traditional Chinese Medicine, Beijing.
Influence of thoracic spinal subarachnoid microinjection of noradrenaline (NA, 40 mg/20 microliters) on the effect of electroacupuncture (EA) at Neiguan (PC6) was observed in 40 rabbits anesthetized with urethan-chloralose. Results showed that: 1) EA of Neiguan (PC6) could significantly accelerate the recovery of ST-segment and T-wave of electrocardiogram induced by acute myocardial ischemia (AMI); 2). Subarachnoid microinjection of NA also could promote the recovery of ST, T and blood pressure of post-AMI; and 3) Subarachnoid microinjection of NA could strengthen the effect of EA of Neiguan (PC6) to promote the recovery of ST and T of Post-AMI. It suggests that alpha-receptors of intra-thoracic spinal cord participate in the action of EA of Neiguan (PC6) ameliorating AMI, and the upper thoracic segement is one of the links for connecting Neiguan and the heart.