摘要
背景:脂肪肝或脂肪变性是肝脏中脂质过多积累的一种状况,主要是甘油三酸酯(TG)形式,这是非酒精性脂肪肝疾病(NAFLD)的标志。 NAFLD是全世界最常见的肝脏疾病,经常与肥胖,高脂血症和胰岛素抵抗相关。游离脂肪酸(FA)是肝脂肪变性的主要介质。 NAFLD患者的循环FA水平升高,与疾病的严重程度相关。 方法:脂肪变性是一种可逆的疾病,可以通过改变行为来解决,或者可以发展为更严重的肝脏损害,例如脂肪性肝炎(NASH),纤维化和肝硬化。在NAFLD中,外源或内源性FA积累在肝细胞中并引发肝损伤。过量的TG储存在胞质脂质滴(LDs)中,这些脂质是动态细胞器,充当脂质代谢的枢纽。 结果:在本综述的第一部分中,我们简要地假设了FA的主要类别及其化学分类是双键存在和数量,它们的代谢途径以及对人体健康的影响的函数。然后,我们总结了NAFLD的主要遗传和饮食诱导的动物模型,以及NAFLD的细胞模型。 结论:近年来,通过饮食诱导的NAFLD动物模型以及NAFLD的细胞模型在研究NAFLD涉及的机制方面都得到了越来越多的应用,我们谈到了它们的优缺点。
关键词: 脂肪酸,肝脂肪变性,非酒精性脂肪肝疾病(NAFLD),活性氧(ROS),脂肪酸氧化,脂质代谢,氧化应激,脂质滴(LDs)。
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