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[Xinfeng Capsule reduces hypercoagulative state in patients with Sjogren's syndrome by inhibiting miR-155/SOCS1/NF-κB signaling pathway].

Objective To explore the relationship between Xinfeng Capsule (XFC) improving the hypercoagulative state in patients with Sjogren's syndrome (SS) and miR-155/suppressor of cytokine signaling 1 (SOCS1)/nuclear factor κB (NF-κB) signaling pathway. Methods Sixty-six SS patients were randomly divided into XFC-treated group and hydroxychloroquine (HCQ)-treated control group (n=33 per group), which were respectively treated with XFC and HCQ. In addition, 20 healthy volunteers were enrolled as a normal control group. The levels of prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (FIG), thrombin time (TT) and D-dimer (D-D) were detected using automatic coagulation analyzer. Interleukin-1β (IL-1β), IL-4, IL-10, tumor necrosis factor-α (TNF-α), P50, P65, inhibitor of NF-κB α (IκBα) were tested using ELISA. Meanwhile, the mRNA expressions of p50, p65 and IκBα were determined using quantitative real-time PCR, and the level of microRNA-155 (miR-155) was examined by one-step fluorescence quantitative PCR. The protein levels of P50, P65 and SOCS1 were detected using Western blotting. Erythrocyte sedimentation rate (ESR) was evaluated by Westergren method. Hypersensitive C-reactive protein (hs-CRP) was detected using automatic biochemical analyzer. Results Compared with the normal control group, the levels of D-D and FIB significantly increased in SS group; simultaneously, the serum levels of miR-155, IL-1β, TNF-α, P50, P65, IκBα, hs-CRP, ESR were significantly elevated in SS patients, while IL-4 and IL-10 were significantly reduced. Spearman correlation analysis showed that the coagulation parameters were remarkably correlated with cytokines, NF-κB and activity indexes. In the two treated groups, coagulation parameters and related indexes were demonstrated having some improvement, especially in the XFC group, which had a much higher efficiency, and better outcomes in reducing the levels of FIB, D-D, miR-155, TNF-α, IL-1β, P50, P65, ESR and hs-CRP, as well as increasing the expressions of SOCS1, IL-4 and IL-10. Conclusion XFC can significantly alleviate the hypercoagulative state of patients with SS, and the mechanisms may be related to the inhibition of miR-155/SOCS1/NF-κB signaling pathway.