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Effects of Proanthocyanidins on Growth Performance, Intestinal Inflammation and Barrier Function, and Bile Acid Metabolism-Related Genes in Weaned Piglets Challenged with Lipopolysaccharide

文献类型： 外文期刊

作者： Yu, Aiying 1 ; Wang, Zhenjiang 2 ; Wang, Sutian 3 ; Zhao, Weiguo 4 ; Chen, Lian 2 ; Wang, Dan 2 ; Li, Zhiyi 2 ; Wang, Yuan 2 ; Fang, Zhengfeng 1 ; Lin, Sen 2 ;

作者机构： 1.Sichuan Agr Univ, Anim Nutr Inst, Minist Educ, Key Lab Anim Dis Resistance Nutr, Chengdu 611130, Peoples R China

2.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Urban Agr South China, Guangzhou 510640, Peoples R China

3.Guangdong Acad Agr Sci, Inst Anim Sci, State Key Lab Swine & Poultry Breeding Ind, Guangdong Prov Key Lab Anim Breeding & Nutr, Guangzhou 510640, Peoples R China

4.Jiangsu Univ Sci & Technol, Sch Biotechnol, Jiangsu Key Lab Sericulture Biol & Biotechnol, Zhenjiang 212100, Peoples R China

关键词： proanthocyanidins; weaned piglets; growth performance; intestinal inflammation; barrier function; bile acid

期刊名称：ANIMALS （ 影响因子：2.7； 五年影响因子：3.2 ）

ISSN： 2076-2615

年卷期： 2025 年 15 卷 13 期

页码：

收录情况： SCI

摘要： This study aims to investigate the effects of dietary proanthocyanidins (PACs) on growth performance, intestinal inflammation and barrier function, and bile acid metabolism-related genes in weaned piglets challenged with lipopolysaccharide (LPS). A total of 18 21-day-old castrated piglets (7.16 +/- 1.66 kg) were randomly assigned to three groups: (1) CON (a basal diet), (2) LPS (a basal diet + LPS), (3) LPS + PAC (a basal diet + LPS + 250 mg/kg PAC), with each group consisting of six replicates of 1 piglet per treatment. The study lasted for 21 days. On the 14th and 21st days of the experiment, piglets in the LPS and LPS + PAC groups received an intraperitoneal injection of 100 mu g/kg body weight of LPS, while the piglets in the CON group received an injection of 0.9% normal saline solution. The LPS + PAC group exhibited a significantly higher average daily gain (ADG) than the LPS group (p < 0.05). LPS stimulation resulted in a decreased (p < 0.05) villus height of the jejunum and ileum and an increased number of goblet cells. These effects were alleviated (p < 0.05) in the LPS + PAC group. The LPS + PAC group decreased the level of TNF-alpha and D-lactate in serum and the gene expression of IL-6 and IL-1 beta in the ileal tissue, compared with the LPS group, while increasing the gene expression of Occludin and ZO-1 in the ileal tissue (p < 0.05). LPS stimulation down-regulated the expression of genes regulating bile acid synthesis and transport, including hepatic CYP7A1 and ileum ASBT, whereas dietary PAC had no significant effect on the expression of these genes (p > 0.05). Nevertheless, supplementation with PAC significantly increased the expression levels of GLP-2R, GCG, and TGR5 in the ileum of piglets (p < 0.05). Additionally, piglets in the LPS + PAC group exhibited a significant increase in the level of glucagon-like peptide 2 (GLP-2) compared with the LPS group (p < 0.05). PAC generally improves the ADG, intestinal morphology, and intestinal barrier function of piglets by activating TGR5 to stimulate the intestinal secretion of GLP-2.

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