Lysine Restriction Affects Feed Intake and Amino Acid Metabolism via Gut Microbiome in Piglets
文献类型: 外文期刊
第一作者: Yin, Jie
作者: Yin, Jie;Han, Hui;Li, Yuying;Ren, Wenkai;Wu, Fei;Liu, Gang;Wu, Xin;Li, Chunyong;Li, Tiejun;Yin, Yulong;Yin, Jie;Han, Hui;Li, Yuying;Ren, Wenkai;Wu, Fei;Liu, Zhaojin;Zhao, Yurong;Fang, Rejun;Huang, Xingguo;Zheng, Jie;Zhao, Yurong;Fang, Rejun;Huang, Xingguo;Liu, Gang;Wu, Xin;Li, Tiejun;Yin, Yulong;Wang, Kai;Sun, Liping
作者机构:
关键词: Lysine restriction;Microbiome;Feed intake;Piglet
期刊名称:CELLULAR PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:5.5; 五年影响因子:4.354 )
ISSN: 1015-8987
年卷期: 2017 年 44 卷 5 期
页码:
收录情况: SCI
摘要: Background/Aims: Our previous reports suggested that dietary supplementation with lysine influenced intestinal absorption and metabolism of amino acids. In this study, we further investigated the effect of lysine restriction (30%) on feed intake and we also tested the hypothesis that gut microbiome contributed to the potential mechanism of lysine restrictionmediated feeding behavior. Here, we profiled gut microbial communities by sequencing 16S ribosomal ribonucleic acid (rRNA) genes from gut samples as well as growth performance, serum hormones, and intestinal lysine transport in a piglet model. Results: Piglets preferred to the lysine restricted diet when giving three diets and the feed intake was markedly higher in the lysine-restricted group than that in the control group. Altered hormones (leptin, CCK, and ghrelin) might contribute to the feeding behavior caused by lysine restriction. Meanwhile, lysine transporting ability (SLC7A1 and SLC7A2 expression, intestinal electrophysiological changes, and amino acid pool in mesenteric vein) was decreased in response to lysine restriction. Through deep sequencing of bacterial rRNA markers, we observed that bacterial diversity was enhanced in the lysine-restricted group (Shannon H, PD, and Chao1). At the phylum level, lysine restriction enhanced gut Actinobacteria, Saccharibacteria, and Synergistetes abundances. At the family level, Moraxellaceae, Halomonadaceae, Shewanellaceae, Corynebacteriaceae, Bacillaceae, Comamonadaceae, Microbacteriaceae, Caulobacteraceae, and Synergistaceae abundances were increased in response to lysine restriction. Predictive functional profiling of microbial communities by PICRUSt also confirmed that dietary lysine restriction affected gut microbiome, which might further mediate amino acid metabolism, membrane transport, and endocrine system. Conclusion: Our results indicated that lysine restriction inhibited intestinal lysine transport and promoted feed intake, which might be associated with gut microbiome. (c) 2017 The Author(s) Published by S. Karger AG, Basel
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