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  • Title: [Effects of moxibustion on the ultrastructure of synovial cells of knee joint and serum cytokines in adjuvant arthritis rats].
    Author: Liang H, Zhu Y, Zhang M, Bai LK, Wang WJ, Zhao C.
    Journal: Zhongguo Zhen Jiu; 2023 Mar 12; 43(3):317-21. PubMed ID: 36858395.
    Abstract:
    OBJECTIVE: To observe the effects of moxibustion on the ultrastructure of synovial cells of knee joint and serum cytokines in adjuvant arthritis (AA) rats, and to explore the potential mechanism of moxibustion in treatment of rheumatoid arthritis. METHODS: Forty-five Wistar male rats were randomly divided into a normal group, a model group and a moxibustion group, with 15 rats in each group. In the model group and the moxibustion group, the AA model was replicated under wind, cold and humid environment and by injection with complete freund's adjuvant. In the moxibustion group, moxibustion at "Zusanli" (ST 36) and "Shenshu" (BL 23) was used, 20 min each time, once daily, for consecutive 21 days. In the normal group and the model group, no intervention was processed. The scores of the knee joint swelling degree (JSD) and arthritis index (AI) were compared among groups. The ultrastructure of synovial cells of knee joint were observed under transmission electron microscope (TEM). The levels of serum cytokines such as tumor necrosis factor-α (TNF-α), interieukin (IL)-1β, IL-6 and IL-10 were detected using ELISA method. RESULTS: Compared with the normal group, JSD and AI scores, the levels of TNF-α, IL-1β and IL-6 were increased (P<0.01), while IL-10 was reduced (P<0.01) in the model group after intervention. JSD and AI scores, and the levels of TNF-α, IL-1β and IL-6 were lower (P<0.05, P<0.01), while the level of IL-10 was higher (P<0.01) in the moxibustion group compared with the model group. Compared with the normal group, the ultrastructure of synovial cell was obviously damaged in the model group, and the damage was attenuated in the moxibustion group compared with the model group. CONCLUSION: Moxibustion can reduce the symptoms of arthritis in AA rats, which may be related to the improvement of the ultrastructure of synovial cells and the regulation of cytokines. 目的：观察艾灸对佐剂性关节炎（AA）大鼠膝关节滑膜细胞超微结构及血清细胞因子的影响，探讨艾灸治疗类风湿关节炎（RA）的可能机制。方法：将45只雄性Wistar大鼠随机分为正常组、模型组和艾灸组，每组15只。模型组、艾灸组大鼠通过风、寒、湿环境因素结合弗氏完全佐剂的造模方法制备AA模型。艾灸组予艾灸“足三里”“肾俞”，每次20 min，每日1次，连续21 d；正常组和模型组不予干预。比较各组大鼠干预前后足跖肿胀度、关节炎指数（AI）评分；干预后，采用透射电镜观察大鼠膝关节滑膜细胞超微结构，ELISA法检测大鼠血清肿瘤坏死因子-α（TNF-α）、白介素（IL）-1β、IL-6、IL-10水平。结果：干预后，与正常组比较，模型组大鼠足跖肿胀度、AI评分升高（P<0.01），TNF-α、IL-1β、IL-6水平升高（P<0.01），IL-10水平降低（P<0.01）；与模型组比较，艾灸组大鼠足跖肿胀度、AI评分降低（P<0.05），TNF-α、IL-1β、IL-6水平降低（P<0.01），IL-10水平升高（P<0.01）。与正常组比较，模型组大鼠滑膜细胞超微结构损伤明显；与模型组比较，艾灸组大鼠损伤程度减轻。结论：艾灸能减轻AA大鼠关节炎症状，其机制可能与改善膝关节滑膜细胞超微结构、调节细胞因子水平有关。.
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