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胆固醇稳态紊乱与非酒精性脂肪性肝病

Disturbances in Cholesterol Homeostasis and Non-alcoholic Fatty Liver Diseases.

作者信息

Malhotra Pooja, Gill Ravinder K, Saksena Seema, Alrefai Waddah A

机构信息

Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States.

Jesse Brown VA Medical Center, Chicago, IL, United States.

出版信息

Front Med (Lausanne). 2020 Sep 2;7:467. doi: 10.3389/fmed.2020.00467. eCollection 2020.

Abstract

Non-alcoholic fatty liver disease (NAFLD) is a major health problem associated with obesity and other features of the metabolic syndrome including insulin resistance and dyslipidemia. The accumulation of lipids in hepatocytes causes liver damage and triggers inflammation, fibrosis, and cirrhosis. Beside fatty acids and triglycerides, evidence showed an increased accumulation of free cholesterol in the liver with subsequent toxic effects contributing to liver damage. The maintenance of cholesterol homeostasis in the body requires a balance between several pathways responsible for cholesterol synthesis, transport and conversion into bile acids. Intestinal absorption is also one of the major determinants of cholesterol homeostasis. The nature of changes in cholesterol homeostasis associated with NAFLD has been a subject of extensive investigations. In this article, we will attempt to provide a brief overview of the current knowledge about the disturbances in cholesterol metabolism associated with NAFLD and discuss how certain molecular targets of these pathways could be exploited for the treatment of this multifactorial disease.

摘要

非酒精性脂肪性肝病(NAFLD)是一个与肥胖以及代谢综合征的其他特征(包括胰岛素抵抗和血脂异常)相关的主要健康问题。肝细胞中脂质的积累会导致肝损伤,并引发炎症、纤维化和肝硬化。除了脂肪酸和甘油三酯外,有证据表明肝脏中游离胆固醇的积累增加,随后的毒性作用会导致肝损伤。体内胆固醇稳态的维持需要负责胆固醇合成、运输和转化为胆汁酸的几种途径之间的平衡。肠道吸收也是胆固醇稳态的主要决定因素之一。与NAFLD相关的胆固醇稳态变化的性质一直是广泛研究的主题。在本文中,我们将试图简要概述目前关于与NAFLD相关的胆固醇代谢紊乱的知识,并讨论如何利用这些途径的某些分子靶点来治疗这种多因素疾病。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a572/7492531/1d3f8f96ed52/fmed-07-00467-g0001.jpg

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