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Characterization of Gut Microbiomes in Nonalcoholic

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Presentation on theme: "Characterization of Gut Microbiomes in Nonalcoholic"— Presentation transcript:

1 Characterization of Gut Microbiomes in Nonalcoholic
Steatohepatitis(NASH) Patients:A Connection Between Endogenous Alcohol and NASH HEPATOLOGY 2013;57:

2 背景 1.肠道菌群对于营养物质的消化、吸收有重要作用。 2.肠道菌群对于维持宿主免疫系统的内稳定及免疫系统的 变化具有重要作用。
3.肠道细菌可影响一些肠道激素如高血糖素样肽1的分 泌,因此,可影响宿主的代谢。 4.NASH患者与正常人群及肥胖非脂肪肝患者肠道菌群构 成不同,Escherichia所占比例明显上升,而Escherichia 具有生产乙醇功能 5.有研究发现NASH患者肝脏中乙醇代谢酶活性明显升高

3 3-day diet history and a 24-hour dietary
Genomic DNA Extraction, Sequencing, and Quantitative Analysis of the Microbiome Composition. Serum Alcohol Measurement. Enterotyping Blast Search of the Escherichia OTU Sequence.

4 结论: 1.NASH患者、肥胖患者及正常人群肠道菌群构成比不同,NASH患者肠道中变形菌、肠杆菌及大肠埃希氏菌比例较肥胖及正常人群明显上升。
度上升,而乙醇可造成氧化应激、肝脏的炎症损伤。这提示 产乙醇细菌增加对于NASH 的发生可能起了一定的作用。


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