Mouse model of chronic and binge ethanol feeding (the NIAAA model).

Mouse model of chronic and binge ethanol feeding (the NIAAA model).
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DOI:
10.1038/nprot.2013.032
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发表时间:
2013-03
期刊:
影响因子:
14.8
通讯作者:
--
中科院分区:
生物学1区
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长期饮酒是全球慢性肝病的主要原因,导致肝硬化和肝细胞癌。目前最广泛使用的酒精性肝损伤的模型是用含有乙醇的Lieber-DeCarli液体饮食随意喂养4-6周;然而,该模型在不添加二次损伤的情况下仅诱导轻度脂肪变性、血清丙氨酸转氨酶(ALT)的轻微升高和很少或没有炎症。在这里,我们描述了一个简单的酒精性肝损伤的小鼠模型,慢性乙醇喂养(10天自由口服饲料与Lieber-DeCarli乙醇液体饮食)加上一个单一的酗酒乙醇喂养。这种慢性加单次酗酒乙醇喂养的方案协同诱导肝损伤、炎症和脂肪肝,其模拟患者中的急性慢性酒精性肝损伤。该喂养方案还可以扩展到长达8周的较长时间段的慢性喂养加上单次或多次暴食。慢性酒精摄入导致血液中酒精水平升高;因此,这种简单的模型对于酒精性肝病(ALD)和其他因饮酒而受损的器官的研究非常有用。
Chronic alcohol consumption is a leading cause of chronic liver disease worldwide, leading to cirrhosis and hepatocellular carcinoma. currently, the most widely used model for alcoholic liver injury is ad libitum feeding with the Lieber-DeCarli liquid diet containing ethanol for 4–6 weeks; however, this model, without the addition of a secondary insult, only induces mild steatosis, slight elevation of serum alanine transaminase (alt) and little or no inflammation. Here we describe a simple mouse model of alcoholic liver injury by chronic ethanol feeding (10-d ad libitum oral feeding with the Lieber-DeCarli ethanol liquid diet) plus a single binge ethanol feeding. this protocol for chronic-plus-single-binge ethanol feeding synergistically induces liver injury, inflammation and fatty liver, which mimics acute-on-chronic alcoholic liver injury in patients. this feeding protocol can also be extended to chronic feeding for longer periods of time up to 8 weeks plus single or multiple binges. chronic-binge ethanol feeding leads to high blood alcohol levels; thus, this simple model will be very useful for the study of alcoholic liver disease (ALD) and of other organs damaged by alcohol consumption.
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