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Comparison of the Analgesic Effects Between Electro-acupuncture and Moxibustion with Visceral Hypersensitivity Rats in Irritable Bowel Syndrome

Overview
Specialty Gastroenterology
Date 2017 May 20
PMID 28522910
Citations 14
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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 2.73 ± 0.65, < 0.001; 3 mA: 1.91 ± 1.48 6.44 ± 1.26, < 0.001) and Mox at 43 °C and 46 °C groups (43 °C: 1.76 ± 0.81 4.14 ± 1.83, = 0.001; 46 °C: 5.19 ± 2.03 7.91 ± 2.27, = 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 0.28 ± 0.78, < 0.001; 5-HT: 1.42 ± 0.65 7.38 ± 1.12, < 0.001; 5-HT3R: 6.62 ± 0.77 2.86 ± 0.88, < 0.001; 5-HT4R: 4.62 ± 0.65 2.22 ± 0.97, < 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.

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