特尔皮宁-4-ol 在免疫应激的断奶小猪中改善结肠的肠道屏障功能
Lihuai Yu1, Guangzhi Qiu1, Xiaomu Yu1
1College of Animal Science and Technology, Yangzhou University, Yangzhou 215009, China.
Animals : an open access journal from MDPI
|January 11, 2025
概括
特尔皮宁-4-ol (TER) 补充剂改善了与脂多糖化物 (LPS) 挑战的断奶小猪的肠道屏障功能. TER增加了杯状细胞,MUC2表达和有益的肠道细菌,同时减少了炎症和氧化应激,60 mg/kg是有效的剂量.
科学领域:
- 动物营养和肠道健康
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
背景情况:
- 肠道屏障功能障碍是断奶小猪的一个重要问题,通常会被诸如脂多糖 (LPS) 等挑战所加剧.
- 一种单烯的特尔皮宁-4-ol (TER) 已显示出潜在的生物活性,但它对小猪肠道屏障的特定影响需要进行研究.
研究的目的:
- 评估食特-4- (TER) 补充剂对受脂聚糖 (LPS) 挑战的断奶小猪肠道屏障功能的影响.
- 确定TER的最佳剂量,以改善肠道健康并减轻小猪中LPS引起的损伤.
主要方法:
- 五组28天大的小猪 (n=50/组) 接受了21天的基本饮食,TER水平各不相同 (0,30,60,90毫克/公斤).
- 在养期结束后,小猪接受了腹膜内注射LPS (100μg/kg BW) 或盐液 (对照).
- 肠道屏障功能,氧化应激标志物,炎症性细胞因子和肠道微生物群组成被评估在结肠组织和内容.
主要成果:
- TER补充剂显著改善了LPS诱导的结肠密室深度,杯状细胞数量和MUC2表达的下降.
- 在结肠中,TER降低了甲酸 (MDA) 水平,并增强了抗氧化酶活动 (氨酸过氧化酶,超氧化物转化酶,催化酶).
- TER抑制了LPS诱导的促炎细胞因子 (IL-1β,TNF-α) 和炎症组分 (NLRP3,ASC,caspase-1) 的增加,并调节了肠道微生物群组成,增加了有益的Firmicutes和UCG-005,同时减少了蛋白质细菌.
结论:
- 饮食中的特-4-ol (TER) 有效地增强了LPS挑战的断奶小猪的肠道屏障功能.
- TER减轻氧化压力,减少炎症,并积极调节肠道微生物群,支持整体肠道健康.
- 建议在饮食中使用60mg/kg的TERR剂量,以获得断奶小猪的最佳益处.
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