神经炎症
封堵器
肠道菌群
胃肠道
肠-脑轴
势垒函数
炎症
移植
厚壁菌
免疫学
紧密连接
医学
生物
内科学
细胞生物学
细菌
遗传学
16S核糖体RNA
作者
Jingjing Rao,Ruining Xie,Lin Li,Jian Hong Jiang,Lei Du,Xindie Zeng,Gongying Li,Chunmei Wang,Yi Qiao
摘要
Abstract The gut–microbiota–brain axis is the most important complex and bidirectional pathway between the gastrointestinal tract and the central nervous system. This study investigated the potential of microbe‐induced gut‐to‐brain signaling to modulate the effect of stress on depressive‐like behavior, intestinal barrier, and neuroinflammation. Result showed that fecal microbiota transplantation increased the consumption of sucrose solutions and decreased the immobility time in forced swimming test. This treatment also increased Firmicutes and decreased Bacteroidetes and Desulfobacterota at phylum levels; reduced the loss of villi and epithelial cells; suppressed the inflammatory cell infiltration in the ileum; increased the expression of ZO‐1, occludin; protected the mucosal layer function; and suppressed the high levels of inflammasomes ( NLRP3 , ASC , caspase‐1 , and IL‐1β ) in rat brain. In summary, fecal microbiota transplantation improves the depressive‐like behavior, alters the gut microbiota imbalance, and alleviates the intestinal tract inflammation, intestinal mucosa disruption, and neuroinflammation in rats induced by chronic unpredictable mild stress.
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