Effects of dietary supplementation with Lactobacillus acidophilus on the performance, intestinal physical barrier function, and the expression of NOD-like receptors in weaned piglets
文献类型： 外文期刊
作者： Wang, Shiqiong 1 ; Li, Haihua 2 ; Du, Chenhong 1 ; Liu, Qian 1 ; Yang, Dongji 1 ; Chen, Longbin 3 ; Zhu, Qi 3 ; Wang, Zhi 1 ;
作者机构： 1.Henan Agr Univ, Coll Anim Sci & Vet Med, Zhengzhou, Henan, Peoples R China
2.Tianjin Agr Univ, Coll Anim Sci & Vet Med, Tianjin, Peoples R China
3.Tianjin Acad Agr Sci, Tianjin Inst Anim Husb & Vet Med, Tianjin, Peoples R China
关键词： Lactobacillus acidophilus; Intestinal physical barrier; Weaned piglet; NLRs
期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）
ISSN： 2167-8359
年卷期： 2018 年 6 卷
页码：
收录情况： SCI
摘要： Lactobacillus supplementation is beneficial to the barrier function of the intestinal physical barrier in piglets. However, the mechanisms underlying this beneficial function remain largely unknown. Here, we investigated the effects of dietary supplementation with Lactobacillus acidophilus on the performance, intestinal physical barrier functioning, and NOD-like receptors (NLRs) expression in weaned piglets. Sixteen weaned piglets were randomly allocated to two groups. The control group received a cornsoybean basal diet, while the treatment group received the same diet adding 0.1% L. acidophilus, for 14 days. As a result, dietary L. acidophilus supplementation was found to increase the average daily gain (ADG) (P <0.05), reduced serum diamine oxidase (DAO) activity (P < 0.05), increased the mRNA expression and protein abundance of occludin in the jejunum and ileum (P <0.01), reduced the mRNA levels of NOD1 (P <0.01), receptor interacting serine/threonine kinase 2 (RIPK2) (P <0.05), nuclear factor kappa B (NF-kappa B) (P <0.01), NLR family pyrin domain containing 3 (NLRP3) (P < 0.01), caspase-1 (P <0.01), interleukin 1 beta (IL-1 beta) (P <0.05) and IL-18 (P <0.01) in the jejunum tissues of the weaned pigs. The expression of NLRP3 (P <0.05), caspase-1 (P < 0.01), IL-1 beta (P < 0.05) and IL-18 (P < 0.05) was also reduced in the ileum tissues of the weaned pigs. These results showed that L. acidophilus supplementation improves the growth performance, enhances the intestinal physical barrier function, and inhibits the expression of NOD1 and NLRP3 signaling-pathway-related genes in jejunum and ileum tissues. They also suggest that L. acidophilus enhances the intestinal physical barrier functioning by inhibiting IL-1 beta and IL-18 pro-inflammatory cytokines via the NOD1/NLRP3 signaling pathway in weaned piglets.
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