The effect of a water-soluble β-glucan on intestinal immunity and microbiota in LPS-challenged piglets.

IF 2.6 2区 农林科学 Q1 VETERINARY SCIENCES
Frontiers in Veterinary Science Pub Date : 2025-03-10 eCollection Date: 2025-01-01 DOI:10.3389/fvets.2025.1533872
Yuliang Wu, Yuxin Li, Mengli Chen, Juan Zhao, Xia Xiong, Chen Guang Olnood, Yundi Gao, Fei Wang, Can Peng, Miao Liu, Chunxia Huang, Jianzhong Li, Liuqin He, Huansheng Yang, Yulong Yin
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Abstract

The intestine is the largest immune and barrier organ in the body, and diarrhea and even death during piglet development are related to dysfunction caused by intestinal barrier damage and inflammation. A water-soluble β-glucan produced by Agrobacterium ZX09 has been shown to have a beneficial effect on gastrointestinal health. The main objective of this study was to investigate whether pre-feeding β-glucan has a protective effect on LPS-induced immune stress in piglets. In this study, 24 weaned piglets (21-day-old; 6.64 ± 0.16 kg) were assigned to 4 treatments in a two × two factorial design with diet (with or without β-glucan) and immunological challenge (saline or LPS). Piglets were challenged with saline or LPS after 39 days of feeding 0 or 200 mg/kg β-glucan. The results demonstrated that β-glucan supplementation increased the average daily weight gain and daily feed intake, and decreased diarrhea rate of piglets. Intestinal inflammation symptoms and histological changes in LPS-challenged piglets were alleviated by pre-feeding of β-glucan. β-glucan supplementation reduced serum IL-1β (interleukin-1β) and NO (nitric oxide) secretion in piglets after LPS challenge (0.01 < p < 0.05). Supplementation with β-glucan downregulated the mRNA expression of IL-6 in piglets after LPS challenge (0.01 < p < 0.05). β-glucan supplementation enriched the short-chain fatty acid-producing bacteria, such as Agathobacter and Subdoligranulum (0.01 < p < 0.05), and increased the concentrations of propionate and butyrate (0.01 < p < 0.05). In conclusion, pre-feeding β-glucan can enhance piglet immunity and promote piglet growth by influencing gut microbiota composition and metabolism, and alleviate intestinal damage after LPS challenge.

水溶性β-葡聚糖对lps攻击仔猪肠道免疫和微生物群的影响。
肠道是人体最大的免疫和屏障器官,仔猪发育过程中腹泻甚至死亡与肠道屏障损伤和炎症引起的功能障碍有关。由农杆菌ZX09产生的水溶性β-葡聚糖已被证明对胃肠道健康有有益的影响。本研究的主要目的是探讨预饲β-葡聚糖是否对lps诱导的仔猪免疫应激具有保护作用。在本研究中,24头断奶仔猪(21日龄;体重为6.64 ± 0.16 kg的患者,按2 × 两因子设计分为4个处理,分别采用饮食(含或不含β-葡聚糖)和免疫刺激(生理盐水或LPS)。饲喂0或200 mg/kg β-葡聚糖39 d后,分别饲喂生理盐水或LPS。结果表明,饲粮中添加β-葡聚糖提高了仔猪平均日增重和日采食量,降低了仔猪腹泻率。预喂β-葡聚糖可减轻lps攻击仔猪肠道炎症症状和组织学变化。添加β-葡聚糖降低了LPS刺激后仔猪血清IL-1β(白细胞介素-1β)和NO(一氧化氮)的分泌(0.01 p p Agathobacter和doligranulum)(0.01 p p
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来源期刊
Frontiers in Veterinary Science
Frontiers in Veterinary Science Veterinary-General Veterinary
CiteScore
4.80
自引率
9.40%
发文量
1870
审稿时长
14 weeks
期刊介绍: Frontiers in Veterinary Science is a global, peer-reviewed, Open Access journal that bridges animal and human health, brings a comparative approach to medical and surgical challenges, and advances innovative biotechnology and therapy. Veterinary research today is interdisciplinary, collaborative, and socially relevant, transforming how we understand and investigate animal health and disease. Fundamental research in emerging infectious diseases, predictive genomics, stem cell therapy, and translational modelling is grounded within the integrative social context of public and environmental health, wildlife conservation, novel biomarkers, societal well-being, and cutting-edge clinical practice and specialization. Frontiers in Veterinary Science brings a 21st-century approach—networked, collaborative, and Open Access—to communicate this progress and innovation to both the specialist and to the wider audience of readers in the field. Frontiers in Veterinary Science publishes articles on outstanding discoveries across a wide spectrum of translational, foundational, and clinical research. The journal''s mission is to bring all relevant veterinary sciences together on a single platform with the goal of improving animal and human health.
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