curr dev nutr。 2020年11月; 4(11):NZAA159。 EPUB 2020年10月15日。PMID: 33215055“> 33215055”> 33215055 D Vieson, Andrew J Steelman, Kelly S Swanson
Article Affiliation:Ching-Yen Lin
Abstract:Background: Yeast products and psyllium husk may provide relief from clinical signs of colitis due to their ability to promote gut integrity, modulate gut microbiota, or positively affect免疫反应,在几种物种中已证明。
Objective: The objective of this study was to investigate the effects of afermentation product (SCFP) and psyllium husk (PH) on cecal and fecal microbiota, colonic gene expression and histopathology, and mesenteric lymph node (MLN) immune cells in a dextran sulfate钠(DSS)诱导的结肠炎模型。
方法: 雄性C57BL/6J小鼠(= 54)被分配给对照,5%SCFP或5%的pH饮食。 2周的饮食适应后,为小鼠提供了蒸馏水或3%(wt:vol)DSS,持续5 d Adbitum。在治疗期间,每天记录体重,食物和水的摄入量以及疾病活动指数(DAI)。在处理微生物分析之前和治疗期间收集新鲜的粪便样品。治疗后,杀死小鼠,然后杀死组织收集。将组织存储在适当的溶液中,直到进一步分析。使用混合模型程序分析数据SAS 9.4(SAS Institute)的E。
结果: SCFP的消耗增加(<0.05)种类的物种(<0.05)物种的丰富度,与对照或ph鼠相比,肠子菌群的丰富度和相对丰度。与对照小鼠相比,pH小鼠具有claudin(),和()的基因表达更大(<0.05)。在DSS小鼠中,SCFP不影响DAI,MLN免疫细胞群,结肠组织病理学和结肠基因表达(> 0.05)。 DSS mice consuming PH had lower (<0.05) DAI compared with control or SCFP mice.
Conclusions: Results suggest that, despite the modest changes it had on cecal and fecal microbiota, SCFP did not attenuate clinical signs associated with DSS-induced colitis in mice, while PH显示保护作用。