Objective:To investigate the therapeutic effect of Rebi formula on mice with gouty arthritis(GA)and the inhibition effects on inflammation factors interleukin-1β(IL-1 β),interleukin-6(IL-6)and tumor necrosis factor-α(TNF-α).Methods:Thirty C57BL/6 mice were randomly divided into control group,model group,low-dose Rebi formula group,high-dose Rebi formula group and colchicine group.Except for the control group,mice in the other four groups were injected with 3%monosodium urate crystal suspension near the plantar joint to generate mouse model of GA.Six hours after modeling,mice in the control group and the model group were given distilled water by intragastric administration.The mice in the low-dose and high-dose Rebi formula groups were given Rebi formula extracts(17.82 g/kg,35.64 g/kg)by gavage,and mice in the colchicine group were given colchicine solution intraperitoneally(0.5 mg/kg).The changes in body weight,foot swelling and thermal pain threshold were observed before and after the treatment.Hematoxylin-eosin staining was used to evaluate the changes of inflammation in foot tissue,liver and kidney.The con-tents of IL-1 β,IL-6 and TNF-α in foot tissue were determined by ELISA.Gene expression levels of IL-1 β,IL-6 and TNF-α in foot tissues were detected by qRT-PCR.Results:Compared with model group,high-dose Rebi formula or colchicine treatment signifi-cantly reduced the swelling degree of the hind paw of GA mice(P<0.01),improved the heat pain tolerance(P<0.001),and re-duced the inflammatory cell infiltration of joint tissue.The protein and mRNA expression levels of inflammatory factors IL-1 β,IL-6 and TNF-α were significantly decreased in joint tissue(P<0.001).In addition,there was no significant difference in the therapeu-tic effect between high-dose Rebi formula group and colchicine group(P>0.05).Conclusion:Rebi formula can effectively allevi-ate the symptoms and inhibit joint inflammation in mice with GA,with no significant effect on liver and kidney function.
关键词
中医药/热痹方/痛风性关节炎/小鼠/炎症介质/白细胞介素-1β/白细胞介素-6/肿瘤坏死因子-α
Key words
Traditional Chinese medicine/Rebi formula/Gouty arthritis/Mouse/Inflammatory cytokines/Interleukin-1 β/Inter-leukin-6/Tumor necrosis factor-α