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九转黄精丹:改善高脂饮食引起的代谢功能障碍相关脂肪肝

2021-09-10 Vivi MedSci原创

体内外实验研究发现,九转黄精丹可以改善非酒精性脂肪性肝病(NAFLD)

      代谢功能障碍相关脂肪肝(MAFLD),以前称为非酒精性脂肪性肝病(NAFLD),全球患病率高达25%,给社会带来了重大的健康和经济负担。MAFLD可发展为炎症性非酒精性脂肪性肝炎、纤维化、肝硬化和肝细胞癌,最终导致肝衰竭。目前临床管理策略主要依靠改变饮食、体力活动和生活方式,以及纠正高血糖、胰岛素抵抗和高脂血症等相关的代谢紊乱。药物治疗效果并不理想,且有一定的副作用。因此,寻找更有效的抗MAFLD治疗药物至关重要

      近年来,中医药治疗MAFLD备受关注。最近在Biomed Pharmacother发表的一项研究表明,九转黄精丹可以通过缓解线粒体功能障碍来减轻高脂饮食引起的MAFLD。九转黄精丹源自《太平惠民和剂局方》,由黄精和当归按1:1的比例组成,按照古法炮制,将黄精(PR)和当归(ASR)加黄酒,经九蒸九晒而成,故曰“九转”。滇黄精Polygonatum kingianum Coll.et Hemsl.(PK)是中国药典收载的黄精(PR)基原植物之一。PK主要由皂甙和多糖组成,具有药理活性,包括免疫促进、抗衰老、血糖调节和脂质调节。此外,该项目组之前的研究表明,PK的皂苷和多糖具有调节血糖和血脂的活性,并且PK提取物通过促进线粒体功能来缓解高脂饮食诱导的MAFLD。

      该研究采用体外和体内两种方法评价了九转黄精丹对MAFLD的作用。采用脂肪乳剂诱导L02脂肪细胞模型,用九转黄精丹处理脂肪细胞24 h。采用高脂喂养法诱导MAFLD大鼠模型,灌胃九转黄精丹12周。研究小鼠脂肪积累、L02细胞损伤、体重、摄食量、组织学参数、脏器指标、生化指标、超微结构、氧化应激、能量代谢、脂肪酸代谢等线粒体指标的变化。

      结果表明九转黄精丹可抑制总胆固醇、甘油三酯、低密度脂蛋白胆固醇、丙氨酸转氨酶和天冬氨酸转氨酶水平的升高,显著提高高密度脂蛋白胆固醇水平。九转黄精丹可上调谷胱甘肽(GSH)和超氧化物歧化酶(SOD)水平,下调丙二醛(MDA)水平。九转黄精丹对肝线粒体超微结构有保护作用,能抑制高脂饮食诱导的肝线粒体MDA升高和SOD、GSH、ATP合酶、复合物I和II的降低。九转黄精丹调节β-氧化基因的表达,包括酰基coa脱氢酶、cyl-CoA脱氢酶长链、肉碱棕榈酰转移酶1A、肉碱棕榈酰转移酶1B、过氧化物酶体增殖物激活的受体- γ共激活物-1α和过氧化物增殖物激活的受体α。

      因此该研究得出结论:九转黄精丹可通过保护线粒体功能缓解高脂饮食诱导的MAFLD,这为临床选择治疗MAFLD的药物提供了新的方向。

参考文献:

[1] Mu JK, Zi L, Li YQ,et al.Jiuzhuan Huangjing Pills relieve mitochondrial dysfunction and attenuate high-fat diet-induced metabolic dysfunction-associated fatty liver disease[J].Biomed Pharmacother,2021,142:112092. doi: 10.1016/j.biopha.2021.112092

[2] Yang XX, Wang X, Shi TT, et al. Mitochondrial dysfunction in high-fat diet-induced nonalcoholic fatty liver disease: The alleviating effect and its mechanism of Polygonatum kingianum. Biomed Pharmacother[J]. 2019,117:109083. doi: 10.1016/j.biopha.2019.109083

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