摘要
背景:非酒精性脂肪性肝病(NAFLD)的特征是,在没有酒精摄入的情况下,甘油三酯的肝脏积聚,可能进展为脂肪性肝炎,纤维化和肝硬化,成为慢性肝病的主要原因。本文讨论了有关膳食多酚在体外,体内和临床试验中预防和治疗NAFLD的最新数据 。 方法: 使用国家医学图书馆 - 美国国立卫生研究院的PubMed数据库进行研究检索。 结果: 多酚在NAFLD中发挥有益作用,阳性结果与体重增加,胰岛素抵抗,肝脏脂肪堆积,氧化应激,促炎状态,线粒体功能障碍和ER应激有关。报道的羟基酪醇数据表明,肝PPAR-α-FGF21-AMPK-PGC-1α信号级联反应的激活与脂肪酸氧化增强, 从头 脂肪发生减少和线粒体功能的恢复有关,这一争论得到了几种多酚对该信号通路特定组分的作用的支持。此外,多酚下调NF-κB,抑制NAFLD中形成的促炎状态,上调肝脏Nrf2,增加细胞抗氧化潜力。多酚的后一个特征是由促氧化剂微量元素的螯合,将自由基还原为稳定形式和抑制自由基产生系统来贡献的。 结论: 多酚是NAFLD防治的相关生物活性化合物,其生物利用度低,生物系统不稳定,可能限制其健康影响。这些缺点强化了进一步研究的必要性,以提高多酚制剂对人类干预的功效。
关键词: 非酒精性脂肪性肝病,肝脂肪变性,多酚,生物活性成分,抗氧化剂,氧化 应激。
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