Jinlida granules ameliorate the high-fat-diet induced liver injury in mice by antagonising hepatocytes pyroptosis

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Abstract

Context: Jinlida (JLD) as a traditional Chinese medicine formula has been used to treat type 2 diabetes mellitus (T2DM) and studies have shown its anti-obesity effect. Objective: To investigate the therapeutic effects of JLD in a mouse model of non-alcoholic fatty liver (NAFL). Materials and methods: C57BL/6J mice were divided into three groups and fed a low-diet diet (LFD), high-fat diet (HFD), or HFD + JLD (3.8 g/kg) for 16 weeks, respectively. The free fatty acids-induced lipotoxicity in HepG2 cells were used to evaluate the anti-pyroptotic effects of JLD. The pharmacological effects of JLD on NAFL were investigated by pathological examination, intraperitoneal glucose and insulin tolerance tests, western blotting, and quantitative real-time PCR. Results: In vivo studies showed that JLD ameliorated HFD-induced liver injury, significantly decreased body weight and enhanced insulin sensitivity and improved glucose tolerance. Furthermore, JLD suppressed both the mRNA expression of caspase-1 (1.58 vs. 2.90), IL-1β (0.93 vs. 3.44) and IL-18 (1.34 vs. 1.60) and protein expression of NLRP3 (2.04 vs. 5.71), pro-caspase-1 (2.68 vs. 4.92) and IL-1β (1.61 vs. 2.60). In vitro, JLD inhibited the formation of lipid droplets induced by 2 mM FFA (IC50 = 2.727 mM), reduced the protein expression of NLRP3 (0.74 vs. 2.27), caspase-1 (0.57 vs. 2.68), p20 (1.67 vs. 3.33), and IL-1β (1.44 vs. 2.41), and lowered the ratio of p-IKB-α/IKB-α (0.47 vs. 2.19). Conclusion: JLD has a protective effect against NAFLD, which may be related to its anti-pyroptosis, suggesting that JLD has the potential as a novel agent in the treatment of NAFLD.

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Hao, Y. yuan, Cui, W. wen, Gao, H. lin, Wang, M. ye, Liu, Y., Li, C. ru, … Jia, Z. hua. (2022). Jinlida granules ameliorate the high-fat-diet induced liver injury in mice by antagonising hepatocytes pyroptosis. Pharmaceutical Biology, 60(1), 274–281. https://doi.org/10.1080/13880209.2022.2029501

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