Data GSE75214 and GSE48959 that contained ulcerative colitis(UC) in the active stage was download from GEO database. Differential genes of UC in the active phase were obtained by using adjusted P<0.05 and |log_2 FC|≥1.5, which was the screening criteria. PPI analysis was performed in the STRING database, and GO and KEGG pathway analysis was performed in DAVID database. Cytoscape was used to visualize differential genes, and calculate key genes in the active phase. Coremine Medical was used to analyze and systematically evaluate traditional Chinese medicines for treating key genes. Finally, 139 differentially expressed genes in the active phase were screened out, which included the 109 up-regulated genes and 30 down-regulated genes. DAVID analyzed that the biology and pathways of these differential genes were mainly concentrated in inflammatory response, immune response, chemokine activity, TNF pathway, NF-κB pathway, and Toll-like receptor pathway. Cytoscape software calculated that IL-6, CXCL8, IL-1β, MMP9, CXCL1, ICAM1, CXCL10, TIMP1, PTGS2 and CXCL9 were the key genes of UC in the active phase. According to Coremine Medical analysis, traditional Chinese medicines for UC in the active stage included Curcumae Longae Rhizoma, Scutellariae Radix, Curcumae Radix had clearing heat clearing damp, reducing fire and detoxifying effects, which was in line with the pathogenesis of UC active stage, and was often used in clinical treatment of dampness-heat diarrhea. Therefore, Huangqin Decoction, which Scutellariae Radix was the principal drug, was selected for systematic evaluation. The evaluation showed that Scutellariae Radix was superior to Western medicine in terms of improving clinical efficiency, reducing inflammatory factors and immunoglobulin levels, with statistically significant differences and fewer adverse reactions. This study provided a new idea for further research on the pathogenesis of UC in the active phase by analyzing the genes and their mechanism of action, and the systematic evaluation of Chinese medicine for the treatment of UC active stage provided a basis for the clinical prevention and treatment of UC by Chinese medicine.

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   |texte=   [Bioinformatics analysis and systematic review of key genes and therapeutic traditional Chinese medicine of ulcerative colitis active stage].
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