摘要
针刺家兔足三里(S36)10min,辐射热测痛法测定痛阈值,针后每5min或7min测定一次,连续观察130min或70min,可见痛阈升高呈周期性波动,其周期为28min,与传统的经气循行周期一致,在此模型上于足三里上下之经线上持续注射微量的酚妥拉明、阿托品或异丙肾上腺素,皆阻断痛阈的升高,而经线注射则无明显影响,表明经络上有兴奋性的α。
Pain threshold was observed by radiation heat dolorimeter once per 5 or 7 min for 130 or 70 min after acupuncting Zu San Li (S36) of rabbits for 10 min.The results showed pain threshold cyclic waving with a cycle of 28 min. It is consistent with traditional channel qi circulation along channels of whole body for 50 weeks (28.8min/w).With the animal model, continuous microinjection of phentolamine,atropine and isoprenaline over and under S36 on stomach meridian the groups, and all blocked the increase in pain threshold. However the microinjection of any of them on the side of S36 showed no effect,suggesting exciting receptor α, M and inhibitory receptor β on channels.
关键词
针刺麻醉
Α受体
Β受体
M受体
acupuncture analgesia
phentolamine
atropine
isoprenaline
receptor α
receptor β
receptor M
