LIU Xingci,WU Dongsheng,CAO Hui,et al.Effect of Shaoyaotang on Fecal Metabolites in Rats with Ulcerative Colitis Based on Liquid Chromatography-mass Spectrometry[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(09):61-70.
LIU Xingci,WU Dongsheng,CAO Hui,et al.Effect of Shaoyaotang on Fecal Metabolites in Rats with Ulcerative Colitis Based on Liquid Chromatography-mass Spectrometry[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(09):61-70. DOI: 10.13422/j.cnki.syfjx.20230201.
Effect of Shaoyaotang on Fecal Metabolites in Rats with Ulcerative Colitis Based on Liquid Chromatography-mass Spectrometry增强出版
To investigate the effect of Shaoyaotang on fecal metabolites in rats with ulcerative colitis (UC) induced by 2,4,6-trinitrobenzenesulfonic acid (TNBS) based on liquid chromatography-mass spectrometry (LC-MS).
Method
2
Male SPF SD rats were randomly divided into normal group, model group and Shaoyaotang group (11.1 g·kg
-1
). Except for normal group, UC rat model was induced by TNBS, and each group was given normal saline except Shaoyaotang group. All groups were treated for 7 days, and the general condition and disease activity index (DAI) were observed. Hematoxylin-eosin (HE) staining was used to observe the histopathological changes of colon, and the protein expressions of interleukin-8 (IL-8) and interleukin-22 (IL-22) in colon tissue were detected by immunohistochemistry (IHC). Rat fecal samples were detected by LC-MS, and the data were analyzed by principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA). Human Metabolome Database (HMDB) and Kyoto Encyclopedia of Genes and Genomes (KEGG) were searched to screen differential metabolites in combination with literature reference. Then, pathway enrichment analysis was conducted using Metabo Analyst 5.0.
Result
2
Shaoyaotang (
ig
) decreased the DAI of UC rats. Compared with the normal group, the model group had damaged colonic mucosa structure, submucosal inflammatory cell infiltration, increased protein expressions of IL-8 (
P
<
0.01) and IL-22 (
P
<
0.05) in colon tissue. Compared with the conditions in the model group, the colonic damage was alleviated in the Shaoyaotang group, and the protein expressions of IL-8 and IL-22 in colon tissue were decreased (
P
<
0.01). After screening, 15 differential metabolites were identified from the Shaoyaotang group, and the involved pathways mainly included biosynthesis of unsaturated fatty acids, linoleic acid metabolism, terpenoid backbone biosynthesis, porphyrin and chlorophyll metabolism, amino sugar and nucleotide sugar metabolism, pyrimidine metabolism and steroid hormone biosynthesis.
Conclusion
2
Shaoyaotang has a therapeutic effect on UC, and its anti-inflammatory effect may be related to improving lipid metabolism and regulating the metabolism of cofactors and vitamins as well as the abnormal carbohydrate metabolism.
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Related Author
LI Yini
ZHANG Yunan
ZHAO Lu
WANG Lulu
ZHOU Yali
ZHEN Jianhua
WU Dongsheng
CAO Hui
Related Institution
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