摘要
Antarctic krill oil is functional oil and has a complex phospholipids composition that poses difficulties in elucidating its effect mechanism on ulcerative colitis(UC).The mechanism of UC action was studied by bioinformatics,and the therapeutic effect of Antarctic krill phospholipids(APL)on dextran sulfate sodium(DSS)-induced colitis mice was verified.GO functional enrichment analysis uncovered an enrichment of these genes in the regulation of cell-cell adhesion,membrane region,signaling receptor activator activity,and cytokine activity.Meanwhile,the KEGG results revealed the genes were enriched in the TNF signaling pathway,pathogenic Escherichia coli infection,inflammatory bowel disease and tight junction.Animal experiments showed that APL treatment alleviated the UC symptoms and reduced inflammatory damage.Meanwhile,the expressions of the tight junction(TJ)proteins,ZO-1 and occludin,were restored,and the levels of IL-6 and TNF-αwere reduced.Moreover,Firmicutes/Bacteroidetes ratio in the intestinal microbiota was regulated,and the contents of short-chain fatty acids metabolites were raised.These findings would provide an insight for the beneficial effects of APL and dietary therapy strategies for UC.
基金
the National Natural Science Foundation of China(3150152,21502239)
the Fundamental Research Funds for the Central Universities,South-Central MinZu University(CZY19032,CZQ21017).
作者简介
Rong Huang,equally contributed to this work;Jiaxu Yao,equally contributed to this work;Correspondence:Li Zhou zhou2018@scuec.edu.cn;Correspondence:Jikai Liu liujikai@mail.scuec.edu.cn。
