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[Effects of eye-acupuncture therapy on serum and colonic SP and VIP contents in rats with irritable bowel syndrome]

Zhen Ci Yan Jiu. 2010 Feb;35(1):8-11, 26

Authors: Wang YJ, Wang DS, Guan HQ, Wang J, Chai JY, Zhao JR, Han XW

OBJECTIVE: To observe the effect of the eye-acupuncture therapy on serum and colonic substance P (SP) and vasoactive intestinal peptide (VIP) contents in rats with irritable bowel syndrome (IBS) so as to explore its underlying mechanism. METHODS: Forty male Wistar rats were equally randomized into control group, IBS model group, eye-acupuncture group and medication (Pinaverium bromide, 7.5 mg/kg, twice daily, intragastric administration) group. IBS model was established by giving the rat with chronic stress stimulation (cold-water swimming, tail clamping, electrical shock, etc.) for 18 days. Eye-acupuncture of Xiajiao (Low Energizer) Area, Pi (Spleen) Area, Gan (Liver) Area and Dachang (Large Intestine) Area was given to the rat 20 min, twice daily for 7 d. Histopathological changes of the colon tissue were displayed by HE staining; and serum and colonic SP and VIP contents were detected by enzyme linked immunosorbent assay (ELISA). RESULTS: No significant difference was found among 4 groups in the histopathological changes of the colon. In comparison with normal control group, both serum and colonic SP and VIP contents in model group increased significantly (P < 0.01), while compared with model group, those in eye-acupuncture and medication groups lowered considerably (P < 0.01). CONCLUSION: Eye-acupuncture can reduce serum and coIonic SP and VIP contents in IBS rats, which may play a role in relieving IBS in eye-acupuncture clinic.

PMID: 20458899 [PubMed - in process]

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