Effect of Acupuncture (Hapkok, LI-4) Based on Retaining Time on Pain in Rats

침법(鍼法)에 따른 합곡혈(合谷穴) 자극(刺戟)이 동통억제(疼痛抑制)에 미치는 영향(影響)

  • Yun Y.C. (Dept. of Oriental Medicine, Dongshin Univerity) ;
  • Choi K.J. (Dept. of Oriental Medicine, Dongshin Univerity) ;
  • Chae W.S. (Dept. of Oriental Medicine, Dongshin Univerity) ;
  • Na C.S. (Dept. of Oriental Medicine, Dongshin Univerity) ;
  • Song H.K. (Dept. of Dentistry, Chosun University)
  • 윤여충 (동신대학과 한의과대학 한의학과) ;
  • 최관준 (동신대학교 한의과대학 한의학과) ;
  • 채우석 (동신대학교 한의과대학 한의학과) ;
  • 나창수 (동신대학교 한의과대학 한의학과) ;
  • 송형근 (조선대학교 치과대학 치의학과)
  • Published : 1998.12.30

Abstract

The purpose of this study was finding the pain inhibitory effect of acupuncture based on rataining time at LI -4. The pain at dentes incisor was evoked by noxious electric stimulation and digastric electromyogram(dEMG) changes based on time interval were measured. To do this, the opioid antagonist was administered intraperitoneally and four groups were made for convenience. Without naloxone, dEMG was changed by either retaining the needle for 40 minutes (Group I) or by lifting and thrusting the needle (Group II). With naloxone administration, dEMG was changed by either retaining the needle for 40 minutes (Group III) or by lifting and thrusting the needle (Group IV). The results are as following 1. The pain inhibitory effect of acupuncture at LI -4 was expressed best in Group I. 2. The pain inhibitory effect was somewhat expressed in Group II but the effect was smaller than Group I. 3 .In Groups III and IV, the pain inhibitory effect was not expressed. The overall result should be the foundation for the further studies to figure out the underlying mechanism of acupuncture. In addition, it is assumed that the results will be useful for optimal retaining time of acupucture for its maximal effect.

Keywords

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