Role of ceramides in nonalcoholic fatty liver disease.

Role of ceramides in nonalcoholic fatty liver disease.
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DOI:
10.1016/j.tem.2012.04.005
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发表时间:
2012-08
影响因子:
10.9
通讯作者:
Kirwan, John P.
Kirwan, John P.
中科院分区:
医学1区
文献类型:
--
作者:
Pagadala, Mangesh;Kasumov, Takhar;McCullough, Arthur J.;Zein, Nizar N.;Kirwan, John P.

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非酒精性脂肪性肝病(NAFLD)是一种慢性疾病,其组织学范围从单纯脂肪变性到非酒精性脂肪性肝炎(NASH)。后者与进展为肝硬变的风险增加有关。神经酰胺是一种脂类物质,通过细胞增殖、分化和死亡发挥生物学效应,并与胰岛素抵抗、氧化应激、炎症和细胞凋亡等多种途径相互作用,所有这些途径都与NAFLD有关。在此,我们提出了神经酰胺促进非酒精性脂肪肝的发生和进展为NASH的机制,部分原因是通过肿瘤坏死因子-α的第二信使效应。更好地了解神经酰胺在脂肪性肝炎中的作用对脂肪肝的治疗具有诊断和治疗意义。
Nonalcoholic fatty liver disease (NAFLD) is a chronic disease with a histological spectrum ranging from steatosis alone, to nonalcoholic steatohepatitis (NASH). The latter is associated with an increased risk for progression to cirrhosis. Ceramides are a lipid species that exert biological effects through cellular proliferation, differentiation and cell death, and interact with several pathways involved in insulin resistance, oxidative stress, inflammation, and apoptosis, all of which are linked to NAFLD. Herein, we propose a mechanism through which ceramides contribute to the development of NAFLD and progression to NASH, due in part to second messenger effects via TNF-α. A better understanding of the role of ceramides in steatohepatitis has both diagnostic and therapeutic implications for the treatment of fatty liver disease.
细胞角蛋白-18片段水平为非酒精性脂肪性肝炎的无创生物标志物:一项多中心验证研究。
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