1. Comparison of the analgesic effects between electro-acupuncture and moxibustion with visceral hypersensitivity rats in irritable bowel syndrome
- Author
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Ji-Meng Zhao, Huangan Wu, Shang Haixia, Liu Chen, Yin Shi, Luyi Wu, Chunhui Bao, Liang Li, Yu-Wei Li, and Zhi-Jun Weng
- Subjects
Male ,Abdominal pain ,Serotonin ,genetic structures ,Electroacupuncture ,Colon ,Moxibustion ,medicine.medical_treatment ,Analgesic ,Irritable Bowel Syndrome ,Rats, Sprague-Dawley ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Animals ,Pain Management ,Electro-acupuncture ,Mast Cells ,Irritable bowel syndrome ,Analgesic effect ,Pain Measurement ,Visceral hypersensitivity ,business.industry ,Gastroenterology ,Temperature ,Visceral pain ,General Medicine ,Visceral Pain ,Basic Study ,medicine.disease ,eye diseases ,Abdominal Pain ,Rats ,Posterior Horn Cells ,Disease Models, Animal ,Hyperalgesia ,030220 oncology & carcinogenesis ,Anesthesia ,030211 gastroenterology & hepatology ,sense organs ,Receptors, Serotonin, 5-HT4 ,medicine.symptom ,Receptors, Serotonin, 5-HT3 ,business - Abstract
AIM To observe whether there are differences in the effects of electro-acupuncture (EA) and moxibustion (Mox) in rats with visceral hypersensitivity. METHODS EA at 1 mA and 3 mA and Mox at 43 °C and 46 °C were applied to the Shangjuxu (ST37, bilateral) acupoints in model rats with visceral hypersensitivity. Responses of wide dynamic range neurons in dorsal horns of the spinal cord were observed through the extracellular recordings. Mast cells (MC) activity in the colons of rats were assessed, and 5-hydroxytryptamine (5-HT), 5-hydroxytryptamine 3 receptor (5-HT3R) and 5-HT4R expressions in the colons were measured. RESULTS Compared with normal control group, responses of wide dynamic range neurons in the dorsal horn of the spinal cord were increased in the EA at 1 mA and 3 mA groups (1 mA: 0.84 ± 0.74 vs 2.73 ± 0.65, P < 0.001; 3 mA: 1.91 ± 1.48 vs 6.44 ± 1.26, P < 0.001) and Mox at 43 °C and 46 °C groups (43 °C: 1.76 ± 0.81 vs 4.14 ± 1.83, P = 0.001; 46 °C: 5.19 ± 2.03 vs 7.91 ± 2.27, P = 0.01). MC degranulation rates and the expression of 5-HT, 5-HT3R and 5-HT4R in the colon of Mox 46 °C group were decreased compared with model group (MC degranulation rates: 0.47 ± 0.56 vs 0.28 ± 0.78, P < 0.001; 5-HT: 1.42 ± 0.65 vs 7.38 ± 1.12, P < 0.001; 5-HT3R: 6.62 ± 0.77 vs 2.86 ± 0.88, P < 0.001; 5-HT4R: 4.62 ± 0.65 vs 2.22 ± 0.97, P < 0.001). CONCLUSION The analgesic effects of Mox at 46 °C are greater than those of Mox at 43 °C, EA 1 mA and EA 3 mA.
- Published
- 2016