| The Effect of Acupuncture on the Intestinal Smooth Muscle Dysfunction Caused by Enteric Bacterial Infection in Weaning Piglet |
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Tae-wan Kim, Jun-ho La, Tae-sik Sung, Jeong-woo Kang, Tchi-chou Nam, Min-cheol Choi, Yeo-sung Yoon, Il-suk Yang |
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College of Veterinary Medicine, Seoul National University |
| 돼지의 세균성 위장관 질환에 따른 평활근 기능 이상에 대한 침술의 효과 |
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김태완, 나준호, 성태식, 강정우, 남치주, 최민철, 윤여성, 양일석 |
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서울대학교 수의과대학 |
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| Abstract |
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It is now generally accepted that acupuncture is effective in diarrhea caused by bacterial infection. However, its effect on the intestinal smooth muscle dysfunction is not clear. Therefore, we investigated the effect of acupuncture therapy at Jiao-chao (GV-1) on the intestinal muscle dysfunction in weaning piglets orally infected by Escherichia coli. The animals are divided into four groups; 1) E. coli + no-treatment, 2) E. coli + antibiotic, 3) E. coli + acupuncture, 4) normal group. In the three E. coli infected groups, low frequency electrical field stimulation (EFS, 1 Hz) provoked triphasic responses composed of initial relaxation followed by on-contraction and off-contraction. While in the normal group, EFS (1Hz) induced biphasic responses composed of relaxation during the stimulation and off-contraction. At the high frequency (16Hz) EFS, both on-contraction and off-contraction of the E. coli + antibiotic, E. coli + acupuncture and the normal group were larger than those of the E. coli + no-treatment group. In the non-adrenergic non-cholinergic (NANC) condition, only biphasic responses occurred to EFS in all experimental groups and the off-contraction of E. coli + antibiotic, E. coli + acupuncture and the normal group were larger than those of the E. coli + no-treatment group. The response to carbachol of those three groups was also significantly greater than that of the E. coli + no-treatment group. These results suggest that acupuncture is as effective as antibiotic in the dysfunction of colonic circular muscle caused by E. coli infection. The maintenance of contractile neuromuscular transmission seems to be involved in the mechanism of the acupuncture effects on diarrhea. |
| Key Words:
acupuncture, Jiao-chao (GV-1), piglet, E. coli infection, colon |
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