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Chlorogenic Acid Enhances the Intestinal Health of Weaned Piglets by Inhibiting the TLR4/NF-κB Pathway and Activating the Nrf2 Pathway

文献类型： 外文期刊

作者： Zhang, Beibei 1 ; Tian, Min 1 ; Wu, Jing 1 ; Qiu, Yueqin 1 ; Xu, Xiaoming 1 ; Tian, Chaoyang 1 ; Hou, Jing 1 ; Wang, Li 1 ; Gao, Kaiguo 1 ; Yang, Xuefen 1 ; Jiang, Zongyong 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou 510640, Peoples R China

2.State Key Lab Swine & Poultry Breeding Ind, Guangzhou 510640, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab Anim Nutr & Feed Sci South China, Guangzhou 510640, Peoples R China

4.Guangdong Prov Key Lab Anim Breeding & Nutr, Guangzhou 510640, Peoples R China

关键词： weaned piglets; chlorogenic acid; intestinal health; inflammation; oxidative stress

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2024 年 25 卷 18 期

页码：

收录情况： SCI

摘要： Chlorogenic acid (CGA) is a natural polyphenol with potent antioxidant and anti-inflammatory activities. However, the exact role of it in regulating intestinal health under oxidative stress is not fully understood. This study aims to investigate the effects of dietary CGA supplementation on the intestinal health of weaned piglets under oxidative stress, and to explore its regulatory mechanism. Twenty-four piglets were randomly divided into two groups and fed either a basal diet (CON) or a basal diet supplemented with 200 mg/kg CGA (CGA). CGA reduced the diarrhea rate, increased the villus height in the jejunum, and decreased the crypt depth in the duodenum, jejunum, and ileum of the weaned piglets (p < 0.05). Moreover, CGA increased the protein abundance of Claudin-1, Occludin, and zonula occludens (ZO)-1 in the jejunum and ileum (p < 0.05). In addition, CGA increased the mRNA expression of pBD2 in the jejunum, and pBD1 and pBD2 in the ileum (p < 0.05). The results of 16S rRNA sequencing showed that CGA altered the ileal microbiota composition and increased the relative abundance of Lactobacillus reuteri and Lactobacillus pontis (p < 0.05). Consistently, the findings suggested that the enhancement of the intestinal barrier in piglets was associated with increased concentrations of T-AOC, IL-22, and sIgA in the serum and T-AOC, T-SOD, and sIgA in the jejunum, as well as T-AOC and CAT in the ileum caused by CGA (p < 0.05). Meanwhile, CGA decreased the concentrations of MDA, IL-1 beta, IL-6, and TNF-alpha in the serum and jejunum and IL-1 beta and IL-6 in the ileum (p < 0.05). Importantly, this study found that CGA alleviated intestinal inflammation and oxidative stress in the piglets by inhibiting the TLR4/NF-kappa B signaling pathway and activating the Nrf2 signaling pathway. These findings showed that CGA enhances the intestinal health of weaned piglets by inhibiting the TLR4/NF-kappa B pathway and activating the Nrf2 pathway.

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