Auricularia auricula Melanin Protects against Alcoholic Liver Injury and Modulates Intestinal Microbiota Composition in Mice Exposed to Alcohol Intake
文献类型： 外文期刊
作者： Lin, Yichen 1 ; Chen, Hua 3 ; Cao, Yingjia 1 ; Zhang, Yuanhui 2 ; Li, Wenfeng 4 ; Guo, Weiling 1 ; Lv, Xucong 2 ; Rao, Pingfan 2 ; Ni, Li 2 ; Liu, Penghu 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Natl Engn Res Ctr JUNCAO Technol, Fuzhou 350002, Peoples R China
2.Fuzhou Univ, Coll Biol Sci & Technol, Inst Food Sci & Technol, Fuzhou 350108, Peoples R China
3.Fujian Acad Agr Sci, Agr Ecol Inst, Fujian Prov Key Lab Agroecol Proc Hilly Red Soil, Fuzhou 350003, Peoples R China
4.Fujian Med Univ, Sch Publ Hlth, Dept Nutr & Food Safety, Fuzhou 350122, Peoples R China
5.Jiangnan Univ, Sch Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China
关键词： Auricularia auricula melanin; alcoholic liver injury; intestinal microbiota; liver metabolome; mRNA expressions
期刊名称：FOODS （ 影响因子：5.561； 五年影响因子：5.94 ）
ISSN：
年卷期： 2021 年 10 卷 10 期
页码：
收录情况： SCI
摘要： The potential effects of Auricularia auricula melanin (AAM) on the intestinal flora and liver metabolome in mice exposed to alcohol intake were investigated for the first time. The results showed that oral administration of AAM significantly reduced the abnormal elevation of serum total triglyceride (TG), cholesterol (TC), low density lipoprotein cholesterol (LDL-C), aspartate aminotransferase (AST) and alanine aminotransferase (ALT), and significantly inhibited hepatic lipid accumulation and steatosis in mice exposed to alcohol intake. Besides, the abnormally high levels of bile acids (BAs) and lactate dehydrogenase (LDH) in the liver of mice with alcohol intake were significantly decreased by AAM intervention, while the hepatic levels of glutathione (GSH) and superoxide dismutase (SOD) were appreciably increased. Compared with the model group, AAM supplementation significantly changed the composition of intestinal flora and up-regulated the levels of Akkermansia, Bifidobacterium, Romboutsia, Muribaculaceae, Lachnospiraceae_NK4A136_group, etc. Furthermore, liver metabolomics demonstrated that AAM had a significant regulatory effect on the composition of liver metabolites in mice with alcohol intake, especially the metabolites involved in phosphatidylinositol signaling system, ascorbate and aldarate metabolism, starch and sucrose metabolism, galactose metabolism, alpha-linolenic acid metabolism, glycolysis/gluconeogenesis, and biosynthesis of unsaturated fatty acids. At the gene level, AAM treatment regulated the mRNA levels of lipid metabolism and inflammatory response related genes in liver, including ACC-1, FASn, CPT-1, CD36, IFN-gamma, , LDLr and TNF-alpha. Conclusively, these findings suggest that AAM has potential beneficial effects on alleviating alcohol-induced liver injury and is expected to become a new functional food ingredient.
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