Background:The complex etiology of Ischemia-Reperfusion Injury (IRI) induced by liver transplantation (LT) and the “one-target-focused” method limit the development of effective therapeutic interventions. We aimed to reveal the specific active ingredients and mechanisms involved in the Chinese herb Scutellaria baicalensis Georgi (SBG) in alleviating IRI in LT.Methods:The active ingredients and potential macromolecular targets of SBG were screened through related databases. The differentially expressed genes of LT were obtained from GSE151648. The protein-protein interaction network was constructed by the STRING database, and Cytoscape 3.7.1 was used to construct a compound-target-disease network. GO and KEGG enrichment analyses were performed on the DAVID database. Finally, the main active components of SBG and the corresponding mechanisms were verified in a donation after circulatory death (DCD) rat LT model.Results:Thirty-two active ingredients of SBG and their targets were identified, and a total of 38 intersection targets were obtained. GO function and KEGG pathway enrichment analyses demonstrated that the plasma membrane and its components play an important role. Molecular docking showed baicalein, the core component of SBG, had a strong binding ability to all hub targets. Next, in DCD rats, baicalein was proven to improve liver function, alleviate pathological injury and apoptosis, and increase the survival rate. Baicalein also significantly affected the expression of 7 hub genes. Furthermore, baicalein could inhibit ferroptosis by inhibiting phospholipid peroxidation.Conclusion:Baicalein, the main component of SBG, could alleviate IRI, affect the expression of hub genes, and inhibit ferroptosis in LT.

2021-05-20·Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology

[Protective effect of baicalein on high fat-induced hepatocytes oxidative damage].

Article

作者: Zhang, L Y ; Yao, C J ; Jiang, P ; Zhu, X H

目的： 探讨氧化损伤在黄芩素改善高脂诱导的小鼠非酒精性脂肪性肝病中的作用。 方法： 将体质量18～20 g雄性C57BL/6J小鼠随机分为4组：正常对照组（C，10%脂肪供能）、高脂组（H，60%脂肪供能）、高脂+黄芩素组（H+B，黄芩素：400 mg/kg体质量）、黄芩素对照组（B，黄芩素：400 mg/kg体质量）。12周后处死小鼠并收集组织样本，HE染色观察肝脏病理改变，超微病理检查线粒体形态，采用试剂盒测定肝脏中丙二醛（MDA）、超氧化物歧化酶（SOD）、谷胱甘肽（GSH）水平及线粒体膜电位（MMP）改变，采用蛋白质印迹法检测Sestrin2及蛋白质羰基化（PCOs）水平，小干扰RNA（siRNA）干扰技术敲低HepG2细胞内Sestrin2蛋白表达，荧光染料BODIPY493/503测定HepG2细胞内脂质改变。采用单因素方差分析中LSD两两比较检验统计学差异。 结果： 与正常对照组相比，高脂喂养导致小鼠肝脏出现明显的脂肪变性及GSH、SOD水平降低（P值均< 0.05），MDA及蛋白质羰基化水平升高，Sestrin2表达增高（P值均< 0.05）；线粒体形状改变、肿胀、缺少嵴，MMP下降33.3%（t = 13.456，P < 0.001）；黄芩素干预有效的抑制高脂喂养导致的小鼠肝脏脂肪变性与氧化损伤，进一步上调Sestrin2的表达，增高MMP（t = 10.104，P < 0.001），肝脏损伤明显缓解。敲低Hep2细胞内Sestrin2的表达，细胞内脂质沉积进一步增加，PCOs表达上升（P值均<0.05），黄芩素拮抗脂质沉积及抗氧化能力降低。 结论： 黄芩素可能通过调控Sestrin2表达，缓解高脂喂养导致的肝脏氧化损伤，从而减轻非酒精脂肪肝损伤。.

2018-06-01·Journal of Natural Medicines4区 · 医学

Scutellaria baicalensis regulates FFA metabolism to ameliorate NAFLD through the AMPK-mediated SREBP signaling pathway

4区 · 医学

Article

作者: Wang, Tao ; Wang, Sijian ; Qiu, Feng ; Zhang, Yi ; Liu, Mengyang ; Chen, Qian ; Yu, Haiyang ; Li, Jian

Scutellaria baicalensis has been reported to improve the lipid metabolism of high-fat diet-induced liver dysfunction, but direct evidence is rare. This study aimed to explore the effects and mechanisms of S. baicalensis and its major constituent baicalin on hepatic lipotoxicity. KK-A^y mice and orotic acid (OA)-induced nonalcoholic fatty liver disease (NAFLD) rats were used to evaluate lipid metabolism regulatory effects. Sodium oleate-induced triglyceride-accumulated HepG2 cells were used for the mechanism study, pretreated with or without compound C or STO-609 or transfected with liver kinase B1 (LKB1) siRNA. In KK-A^y mice, S. baicalensis extract showed a decreased effect on serum and hepatic triglycerides, total cholesterols, and free fatty acid (FFA) levels after 8 weeks of treatment. In OA-induced NAFLD rats, 18 days of treatment with baicalin significantly inhibited hepatic lipid accumulation, attenuating hepatocyte hypertrophy, vacuolization and necrosis. S. baicalensis and baicalin treatment significantly suppressed the sterol regulatory element binding protein-1c (SREBP-1c) transcriptional program with downregulation of gene and protein expression of SREBP-1c (both precursor and mature fraction) and acetyl-CoA carboxylase, fatty acid synthase and stearoyl-CoA desaturase, and upregulation of AMP-activated protein kinase (AMPK), carnitine palmitoyl transferase 1 and nuclear respiratory factor 2 in the liver. Furthermore, activation of AMPK by baicalin was observed to be relative to the increase in phosphorylation of calmodulin-dependent protein kinase kinase. Taken together, S. baicalensis conferred preventive effects against FFA-induced lipotoxicity through the AMPK-mediated SREBP signaling pathway.

100 项与 Scutellaria baicalensis 相关的药物交易

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