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  • Title: Beneficial Effects of Bushen Formula Combined with Enticavir on Chronic Hepatitis B Patients with Suboptimal Response to Enticavir by Regulating B-Cell Differentiation.
    Author: Li M, Zhou ZH, Bao T, Zhang X, Zhu XJ, Jin SG, Gao YT, Sun XH, Gao YQ.
    Journal: Cell Physiol Biochem; 2018; 48(2):633-643. PubMed ID: 30025397.
    Abstract:
    BACKGROUND/AIMS: To investigate the clinical effects of the combination therapy with Bushen Formula (BSF) plus enticavir (ETV) on chronic hepatitis B (CHB) patients with suboptimal response to ETV and explore the regulatory mechanisms of BSF on B cells-mediated humoral immunity. METHODS: Sixty-four HBeAg-positive CHB patients with suboptimal response to ETV were enrolled, and were randomly assigned into control group (C-Group, placebo combined with ETV for 12 months) or treatment group (T-Group, BSF combined with ETV for 12 months). Serum samples from 57 treatment-naïve CHB patients and 15 healthy controls were collected. Serum HBV DNA levels were evaluated by real-time PCR. Characteristics of peripheral blood B-cell subtypes were analyzed by flow cytometry. Serum HBV markers and B cell-activating factor (BAFF) levels were detected by ELISA. Chinese medicine symptom complex score was evaluated and recorded. RESULTS: After treatment, the rates of patients with a reduction of HBsAg > 0.5 log10 IU/ml or 1.0 log10 IU/ml and the rates of HBeAg clearance in T-Group were all higher than those in C-group, with no significant intergroup difference. Only in T-Group, Chinese medicine symptom complex score and the frequency of total B cells were significantly decreased, and the frequencies of Bm1, CD24+CD27-switched B cells and plasma cells were markedly increased after treatment compared with those before treatment. Compared with healthy controls, serum BAFF levels in treatment-naïve CHB patients were increased, and there was a significant positive correlation between serum BAFF and HBsAg levels. However, serum BAFF levels did not differ after treatment in T-Group and C-Group. CONCLUSIONS: The combination therapy with BSF plus ETV promotes the reduction of HBsAg level and the clearance of HBeAg in CHB patients with partial response to ETV through regulating the differentiation of B-cell subsets.
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