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| 1 | Elucidation of the hepatoprotective effect and mechanism of Melastoma dodecandrum Lour. based on network pharmacology and experimental validation显示文摘Objective:To systematically explore the effect and mechanism of melastomatis dodecandri herba(Melastoma dodecandrum Lour.)in the treatment of hepatitis based on network pharmacology.Method:We evaluated the hepatoprotective effects of M.dodecandrum in concanavalin A(Con A)-induced hepatitis in mice by assessing survival rate,histological analysis,serum transaminases,and related cytokines.Then the mechanism of action was predicted by a network pharmacology-based strategy.Based on the results,we measured the hepatic expression of related genes at mRNA level and proteins related to the phosphoinositide 3-kinase(PI3K)/protein kinase B(Akt)and nuclear factorkappa B(NF-кB)pathways.Results:Our study results clearly demonstrated that M.dodecandrum pretreatment significantly alleviated liver injury.This was demonstrated by an increase in survival rate,decreased severity of liver damage,and reduced serum transaminase levels compared with those in the Con A group.Moreover,M.dodecandrum significantly reduced the serum levels of tumor necrosis factor-a,interleukin-6,and interferon-g and increased the liver levels of superoxide dismutase,which indicated that M.dodecandrum exhibits anti-inflammatory and antioxidant activities.On the basis of network pharmacology,50 nodes were selected as major hubs based on their topological importance.Pathway enrichment analyses indicated that the putative targets of M.dodecandrum mostly participate in various pathways associated with the anti-inflammation response,which implies the underlying mechanism by which M.dodecandrum acts on hepatitis.Real-time fluorescent quantitative PCR analysis showed that M.dodecandrum downregulates the mRNA expression of interleukin-6,Toll-like receptor 7,interleukin-1 receptor-associated kinase-4,NF-кB and tumor necrosis factor-a in liver tissues.Western blotting showed that M.dodecandrum pretreatment protected against inflammation through activating the PI3K-Akt pathway by upregulating phosphorylated Akt(p-Akt)expression and suppressing NF-кB activation by inhibiting the phosphorylation of IKK,IkBa,and p65.Conclusion:The present work demonstrated the hepatoprotective effects of M.dodecandrum by regulating the PI3K/Akt and NF-кB pathways in Con A-induced mice,which provide insights into the treatment of hepatitis using M.dodecandrum. | Jinfeng Wang Linyuan Wang Zhihao Zhang Min Wu Wenting Fei Zhihui Yang Jianjun Zhang | 2022 | Journal of Traditional Chinese Medical Sciences2022，9，1： | 0 |
| 2 | 天麻酒渗漉工艺优化及其对小鼠肝组织的影响显示文摘以天麻为主要原料配以西洋参、枸杞子制备天麻酒。采用天麻素、对羟基苯甲醇、人参皂苷Re、人参皂苷Rb1的溶出率之和为评价指标,在单因素试验的基础上,通过响应面试验设计探讨原料粒径、浸泡时间、料液比对天麻酒渗漉工艺的影响,并采用小鼠模型分析天麻酒对小鼠肝组织的影响。结果表明,天麻酒最佳渗漉工艺为:原料粒径50目、浸泡时间6 h、料液比1∶9(g∶mL)。在此优化条件下,4种功能成分的溶出率之和为3.59 mg/g。动物实验结果显示,天麻酒与普通酒相比能显著降低肝组织中的谷丙转氨酶、谷草转氨酶、丙二醛、白细胞介素-4、白细胞介素-6、肿瘤坏死因子-α和前列腺素E2,提高超氧化物歧化酶的活性(P<0.05),对因酒精摄入导致的肝损伤有减缓作用。 | 李幼娟 李立郎 陈发菊 王丽 葛丽娟 文平 国光梅 杨小生 | 2022 | 中国酿造2022，41，7： | 0 |
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