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  • Title: [The effects of electroacupuncture at shu and mu points of stomach on gastric motility, the NMDA of vagus nerve dorsal nucleus and serum NO expression in functional dyspepsia rats].
    Author: Wang L, Shen G, Wang H, Hu M, Yao Y, Ye S.
    Journal: Zhongguo Zhen Jiu; 2018 Mar 12; 38(3):285-90. PubMed ID: 29701047.
    Abstract:
    OBJECTIVE: To research the central molecular mechanism of gastric motility in functional dyspepsia (FD) rats treated with electroacupuncture (EA) at shu and mu points of stomach. METHODS: A total of 30 SD rats were randomized into a blank group, a model group, a Zhongwan+Weishu group, a Weishu group and a Zhongwan group, 6 rats in each group. FD rats were established by moderate clipping tail infuriation and irregular feeding except in the blank group. EA was used at "Zhongwan"(CV 12),"Weishu"(BL 21), and"Zhongwan"(CV 12) +"Weishu"(BL 21) in the corresponding groups for 7 days, once a day, and 20 min a time. No intervention was used in the blank and model groups. Grabbing and fixation were applied in the model group. Gastric antrum motion range and frequency were recorded by gastrointestinal pressure transducer. The expression of subunit NR1 of N-methyl-D-aspartate recepter (NMDAR) in dorsal motor nucleus of the vagus (DMV) was determined by Western blotting. The content of serum nitric oxide (NO) was measured by ELISA. RESULTS: Compared with the blank group, the gastric antrum motion range and NR1 in the DMV decreased and the serum NO content increased in the model group (all P<0.05). Compared with the model group, the gastric antrum motion range and NR1 in the DMV increased and the serum NO content decreased in the three EA groups (all P<0.05). Compared with the Zhongwan and Weishu groups, the gastric antrum motion range and NR1 in the DMV increased in the Zhongwan + Weishu group (all P<0.05). Compared with Zhongwan + Weishu and Zhongwan groups, the expression of NO in the Weishu group decreased (both P<0.05). The gastric antrum motion frequency among the 5 groups had no statistical significance (all P>0.05). CONCLUSION: EA at the shu and mu points can regulate the gastric motility in FD rats which may be by modulating the activity of NMDAR in the central DMV region, thus regulating the serum NO content.
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