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  • Title: [Action mechanism of electroacupuncture at stomach meridian acupoints for oxidative damage in rats with gastric ulcer].
    Author: Yang Z, Wang Y, Liu Q, Liu M, Chen H, Chang X.
    Journal: Zhongguo Zhen Jiu; 2016 Jun 12; 36(6):617-621. PubMed ID: 29231458.
    Abstract:
    OBJECTIVE: To observe the effects of electroacupuncture (EA) at stomach meridian acupoints on expression of oxidation damage factors in serum and gastric mucosal cells in rats with gastric ulcer, and to explore the mechanism of EA at stomach meridian acupoints for oxidative damage in rats with gastric ulcer. METHODS: Forty clean-grade SD rats were randomly divided into a normal group, a model group, a stomach meridian group and a gallbladder meridian group, ten rats in each one. Except the normal group, rats in the remaining groups were applied the restraint-cold stress method to establish the model of gastric ulcer. Rats in the normal group and model group received no treatment; rats in the stomach meridian group were treated with EA at "Liangmen" (ST 21) and "Zusanli" (ST 36); rats in the gallbladder meridian group were treated with EA at "Riyue" (GB 24) and "Yanglingquan" (GB 34). The EA was given for 30 min, once a day for 7 days totally. The change of gastric mucosal morphology was observed by routine light microscope; enzyme linked immunosorbent assay was used to detect the expressions of malondialdehyde (MDA), glutathione peroxidase (GSH-px) and tumor necrosis factor-α (TNF-α), interleukin-2(IL-2), interleukin-6(IL-6) in serum and gastric mucosal cells of rats. RESULTS: After treatment, compared with the model group, the gastric mucosal damage index was decreased in the stomach meridian group and gallbladder meridian group (both P<0.05), the expressions of MDA, TNF-α, IL-2 and IL-6 in serum and gastric mucosal cells were significantly decreased in the stomach meridian group (all P<0.01), but the contents of GSH-Px in serum and gastric mucosal cells were increased significantly (both P<0.01). Compared with the gallbladder meridian group, the gastric mucosal damage index as well as the expressions of MDA,TNF-α, IL-2 and IL-6 in serum and gastric mucosal cells were significantly decreased in the stomach meridian group rats (P<0.05, P<0.01), and the contents of GSH-px in serum and gastric mucosal cells were increased significantly (both P<0.01). CONCLUSIONS: EA at stomach meridian acupoints is likely to inhibit the expressions of oxidative damage factors to promote the repair of gastric mucosal injury, which indicates the correlation between meridians and zang-fu.
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