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Gastric infusion of short-chain fatty acids can improve intestinal barrier function in weaned piglets.
Genes and Nutrition ( IF 3.3 ) Pub Date : 2019-02-01 , DOI: 10.1186/s12263-019-0626-x
H Diao 1, 2 , A R Jiao 1 , B Yu 1 , X B Mao 1 , D W Chen 1
Affiliation  

Background The present study was conducted to investigate the effects of gastric infusion of short-chain fatty acids (SCFA) on gut barrier function in a pig model. In this study, 21 DLY barrows with an average initial body weight of (8.31 ± 0.72) kg were randomly allotted into three treatments: (1) control, (2) infusing low SCFA, S1, (3) infusing high SCFA, S2. The experimental period lasted for 7 days. Results Gastric infusion of SCFA increased the concentrations of SCFA in serum and digesta, and enhanced the mRNA and protein abundances of SCFA receptors in pig intestine (P < 0.05). Moreover, gastric infusion of SCFA led to alteration of intestinal morphology, elevation of intestinal development-related gene abundances, and decrease of apoptotic cell percentage, as well as reduction of pro-apoptosis gene and protein abundances (P < 0.05). Besides, the jejunal SLC7A1 and ileal DMT1 mRNA abundances in the SCFA infusion groups were higher than those in the control group (P < 0.05). Additionally, gastric infusion of SCFA increased the mRNA abundances of Occludin and Claudin-1 in the duodenum and ileum, enhanced Lactobacillus spp counts in the ileal digesta, decreased the mRNA and protein abundances of IL-1β in the colon, and reduced Escherichia coli count in the ileal digesta (P < 0.05). Conclusions These data indicated that gastric infusion of SCFA, especially high SCFA concentration, may be beneficial to gut development of piglets via improving gut morphology, decreasing apoptotic cell percentage, and maintaining intestinal barrier function.

中文翻译:

短链脂肪酸灌胃可改善断奶仔猪的肠道屏障功能。

背景 本研究旨在调查胃输注短链脂肪酸 (SCFA) 对猪模型肠道屏障功能的影响。在这项研究中,将 21 头平均初始体重为 (8.31 ± 0.72) kg 的 DLY 手推车随机分配到三个处理组:(1) 对照,(2) 注入低 SCFA,S1,(3) 注入高 SCFA,S2。实验期持续7天。结果SCFA灌胃增加了血清和食糜中SCFA的浓度,提高了猪肠道SCFA受体的mRNA和蛋白丰度(P < 0.05)。此外,胃内输注SCFA导致肠道形态改变,肠道发育相关基因丰度升高,凋亡细胞百分比降低,促凋亡基因和蛋白质丰度降低(P < 0.05)。此外,SCFA输注组空肠SLC7A1和回肠DMT1 mRNA丰度高于对照组(P < 0.05)。此外,SCFA 的胃输注增加了十二指肠和回肠中 Occludin 和 Claudin-1 的 mRNA 丰度,增加了回肠食糜中的乳酸杆菌属的数量,降低了结肠中 IL-1β 的 mRNA 和蛋白质丰度,并减少了大肠杆菌的数量在回肠食糜中(P < 0.05)。结论 这些数据表明,胃内输注 SCFA,尤其是高浓度 SCFA,可能通过改善肠道形态、降低凋亡细胞百分比和维持肠道屏障功能,有利于仔猪肠道发育。0.05)。此外,SCFA 的胃输注增加了十二指肠和回肠中 Occludin 和 Claudin-1 的 mRNA 丰度,增加了回肠食糜中的乳酸杆菌属的数量,降低了结肠中 IL-1β 的 mRNA 和蛋白质丰度,并减少了大肠杆菌的数量在回肠食糜中(P < 0.05)。结论 这些数据表明,胃内输注 SCFA,尤其是高浓度 SCFA,可能通过改善肠道形态、降低凋亡细胞百分比和维持肠道屏障功能,有利于仔猪肠道发育。0.05)。此外,SCFA 的胃输注增加了十二指肠和回肠中 Occludin 和 Claudin-1 的 mRNA 丰度,增加了回肠食糜中的乳酸杆菌属的数量,降低了结肠中 IL-1β 的 mRNA 和蛋白质丰度,并减少了大肠杆菌的数量在回肠食糜中(P < 0.05)。结论 这些数据表明,胃内输注 SCFA,尤其是高浓度 SCFA,可能通过改善肠道形态、降低凋亡细胞百分比和维持肠道屏障功能,有利于仔猪肠道发育。回肠食糜中的大肠杆菌数量减少(P < 0.05)。结论 这些数据表明,胃内输注 SCFA,尤其是高浓度 SCFA,可能通过改善肠道形态、降低凋亡细胞百分比和维持肠道屏障功能,有利于仔猪肠道发育。回肠食糜中的大肠杆菌数量减少(P < 0.05)。结论 这些数据表明,胃内输注 SCFA,尤其是高浓度 SCFA,可能通过改善肠道形态、降低凋亡细胞百分比和维持肠道屏障功能,有利于仔猪肠道发育。
更新日期:2020-04-22
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