RÉSUMÉ
Objective To investigate the molecular mechanism of YingZhongXiao Ointment(YZXO)in the treatment of goiter based on network pharmacology and experimental validation.Methods TCMSP,TCMID,BATMAN-TCM,TCM-MESH,were used to screen the effective active ingredients and targets of YZXO.GeneCards,OMIM,Pharm GKB and Drug Bank databases were used to obtain goiter disease targets.After mapping the drug targets to the disease targets,the intersecting targets were screened,and then the intersecting targets were used to construct a PPI network and screen the core targets,which were subjected to GO and KEGG enrichment analysis.Results In this study,227 active ingredients,314 targets and 847 goiter targets were screened,and 78 potential targets for goiter treatment were obtained after mapping.449 biological processes were obtained from GO enrichment analysis,and 118 pathways were identified from KEGG enrichment analysis,including PI3K-Akt,mitogen-activated protein kinase(MAPK),tumor necrosis factor(TNF)and other signalling pathways.The results of animal experiments showed that compared with the model group,the gene expression of PI3K/Akt/m TOR signalling pathway in thyroid tissue of rats in each dose group and LT4 group was decreased(P<0.01 or P<0.05),p-PI3K/PI3K、p-Akt/Akt was decreased(P<0.01),the protein content of VEGF and PCNA was decreased(P<0.01 or P<0.05),and the protein content of Fas and FasL was increased(P<0.05 or P<0.01).Conclusion This study suggests that the mechanism of YZXO treated goiter by Resolving the Fire may be related to downregulation of PI3K/Akt/m TOR signalling pathway,inhibition of abnormal thyroid cell proliferation and promotion of thyroid cell apoptosis.