Early-life galacto-oligosaccharides supplementation alleviates the small intestinal oxidative stress and dysfunction of lipopolysaccharide-challenged suckling piglets  

作　　者：Shiyi Tian Jue Wang Ren Gao Jing Wang Weiyun Zhu 

机构地区：[1]Laboratory of Gastrointestinal Microbiology,Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health,National Center for International Research on Animal Gut Nutrition,National Experimental Teaching Demonstration Center of Animal Science,College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China

出　　处：《Journal of Animal Science and Biotechnology》2022年第5期1543-1556,共14页畜牧与生物技术杂志（英文版）

基　　金：supported by the National Key R&D Program of China 2017YFE0135200.

摘　　要：Background:Galacto-oligosaccharides(GOS)are non-digestible food ingredients that promote the growth of beneficial bacteria in the gut.This study investigated the protective effect of the early-life GOS supplement on the piglets’gut function against the oxidative stress induced by lipopolysaccharide(LPS)-challenge.Methods:Eighteen neonatal piglets were assigned to three groups including CON,LPS and LPS+GOS groups.The piglets in CON group and LPS group received physiological saline,while those in LPS+GOS group received GOS solution for 13 d after birth.On d 14,the piglets in LPS group and LPS+GOS group were injected with LPS solutions,while the piglets in CON group were injected with the same volume of physiological saline.Results:The results showed that the early-life GOS supplement blocked the LPS-induced reactive oxygen species(ROS)secretion,malondialdehyde(MDA)production and the increase of pro-apoptotic factor expression.Meanwhile,the early-life GOS supplement improved the activities of antioxidant enzymes,disaccharidase enzymes activities,and digestive enzymes activities,and increased the mRNA abundance of the gene related to nutrient digestion and absorption and the relative protein expression of tight junction.The study also showed that the early-life GOS supplement improved the expression of Hemeoxygenase-1(HO-1)and NAD(P)H/quinone acceptor oxidoreductase-1(NQO-1),and activated the AMP-activated protein kinase(AMPK).Conclusions:These results suggested that GOS enhanced the gut function,reduced the ROS production and proapoptotic factors gene expression,and activated the AMPK signaling pathway in LPS-challenged piglets.

关 键 词：Early-life GALACTO-OLIGOSACCHARIDES LIPOPOLYSACCHARIDE Oxidative stress Suckling piglets 

分 类 号：S828.5[农业科学—畜牧学]