文献类型： 外文期刊
作者： He, Liuqin 1 ; Liu, Yonghui 1 ; Liu, Di 3 ; Feng, Yanzhong 3 ; Yin, Jie 4 ; Zhou, Xihong 1 ;
作者机构： 1.Hunan Normal Univ, Coll Life Sci, Hunan Prov Key Lab Anim Intestinal Funct & Regula, Lab Anim Nutr & Human Hlth, Changsha 410081, Peoples R China
2.Chinese Acad Sci, Inst Subtrop Agr, Hunan Prov Key Lab Anim Nutr Physiol & Metab Proc, Changsha 410125, Peoples R China
3.Heilongjiang Acad Agr Sci, Inst Anim Husb, Harbin 150086, Peoples R China
4.Hunan Agr Univ, Coll Anim Sci & Technol, Changsha 410128, Peoples R China
期刊名称：OXIDATIVE MEDICINE AND CELLULAR LONGEVITY （ 影响因子：7.31； 五年影响因子：8.427 ）
ISSN： 1942-0900
年卷期： 2021 年 2021 卷
页码：
收录情况： SCI
摘要： Serine is involved in the regulation of hepatic lipid metabolism. However, whether exogenous or endogenous serine deficiency affects lipid accumulation in the liver and related mechanisms is unclear. Here, we investigated the effects of serine deficiency on hepatic fat accumulation in mice fed a serine-deficient diet or in mice supplemented with the D-3-phosphoglycerate dehydrogenase (PHGDH) inhibitor NCT-503. Both treatments produced an increase in body weight and liver weight and higher triglyceride content in the liver. Both treatments also exacerbated hepatic inflammatory responses and oxidative stress. Importantly, NCT-503 supplementation significantly inhibited PHGDH activity and decreased the serine content in the liver. Dietary serine deficiency significantly aflected the colonic microbiota, characterized by a decreased ratio of Firmicutes/Bacteroidetes and decreased proportion of Bifidobacterium. Dietary serine deficiency additionally resulted in significantly decreased colonic and serum acetate and butyrate levels. The collective results indicate that NCT-503 supplementation may contribute to overaccumulation of hepatic lipid, by causing hepatic serine deficiency, while dietary serine deficiency may produce similar outcomes by affecting the gut-microbiota-liver axis.
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