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  • Title: [Effects of soothing liver and invigorating spleen recipes on the mRNA and protein expression of TLR4 in hepatic tissues of rats with NASH].
    Author: Yang QH, Huang J, Zhang YP, Wang Q, He XM, Feng GF, Wang WJ, Li ZH.
    Journal: Zhong Yao Cai; 2013 Jan; 36(1):78-84. PubMed ID: 23750414.
    Abstract:
    OBJECTIVE: To research the effects of soothing liver and invigorating spleen recipes on expression of TLR4 mRNA and protein expression in hepatic tissue of rats with non-alcoholic steatohepatitis and its mechanism. METHODS: 72 male SD rats were randomly divided into 8 groups: normal group, model group, high-dose soothing liver group (receiving gavage of Chaihu Shugan Powder 9. 6 g/kg), low-dose soothing liver group (receiving gavage of Chaihu Shugan Powder 3.2 g/kg), high-dose invigorating spleen group (receiving gavage of Shen Ling Baizhu Powder 30 g/kg), low-dose invigorating spleen group (receiving gavage of Shen Ling Baizhu Powder 10 g/kg), high-dose integrated Group (receiving gavage of Chaihu Shugan Powder and Shen Ling Baizhu Powder combination recipes 39.6 g/kg), low-dose integrated Group (receiving gavage of Chaihu Shugan Powder and Shen Ling Baizhu Powder combination recipes 13.2 g/kg), 9 rats were in each group. Used high fat diet (10 mL/kg) to establish experiment model of NASH rat. At the end of the sixteenth weeks, the levels of serum lipids, liver lipids and serum aminotransferase were measured by automatic biochemical analyzer; Liver pathology was analyzed by HE and Oil red O staining; TLR4 mRNA was assayed by real-time fluorescent quantitative polymerase chain reaction (RT Q-PCR); TLR4 protein was detected by Western blot. RESULTS: Compared with normal group, the levels of TC, LDL-C in the serum, TC,TG as well as the expression of TLR4 mRNA and protein in the hepatic tissue were dramatically increased in model group (P < 0.01). Compared with the model group, the levels of serum lipids, liver lipids, the expression of TLR4 mRNA and protein in the hepatic tissue were decreased in each treatment group (P < 0.05 or P < 0.01). CONCLUSION: Soothing liver and invigorating spleen recipes can inhibit hepatic TLR4 expression, that may be one of their therapeutic mechanisms. There is much difference between high-does and low-does treatment groups in various testing items, which shows that there is does-effect relationship in intervention NASH.
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