The Study of Molecular Mechanisms of Xuanbai Chengqi Decoction(宣白承气汤)in the Treatment of Coronavirus Disease 2019 Based on Network Pharmacology and Molecular Docking Method

Objective:To explore the molecular mechanism of Xuanbai Chengqi Decoction(宣白承气汤)in the treatment of Coronavirus Disease 2019(COVID-19)based on network pharmacology,and to verify by molecular docking technology.Methods:The components and targets of Xuanbai Chengqi Decoction(宣白承气汤)were obtained by TCMSP,targets’information was corrected based on the databases such as UniP rot and DrugBank,and the software Cytoscape3.7.1 was adopted to construct TCM-Component-Target and Component-Target network.The main targets were mapped to the KEGG pathway and the GO biological process with the help of DAVID to further elucidate the potential relationship between the main targets and Xuanbai Chengqi Decoction(宣白承气汤)therapy for COVID-19.In the end,the Swiss Dock platform was adopted for the molecular docking verification of key components and targets.Results:The Component-Target network consists of 35 components and 106 corresponding targets,the main targets include COX-2,NCOA2,PTGS1,HSP90 AB1,PRKACA and PGR,etc.There are 561 GO entries of target mapping(P 0.05),including 155 entries for Biological Processes(BP),147 entries for Cell Composition(CC),and 259 entries for Molecular Function(MF).There are 38 KEGG mapping pathways(P 0.05),including many aspects of infectious disease,immune system and endocrine system,as well as Calcium signaling pathway,VEGF signaling pathway,PI3K-Akt signaling pathway and other processes.Conclusion:The result of molecular docking shows that the affinity of the key components such as beta-sitosterol and stigmasterol are similar to recommended medications for COVID-19.Its effect in the treatment of middle stage of COVID-19 may be related to the blocking of the binding of COVID-19 virus and ACE2,antivirus,and relieving inflammatory storm.

Xuanbai Chengqi decoction(宣白承气汤) plus Western Medicine in treatment of severe pneumonia with symptom pattern of phlegm-heat obstructing lung:a Meta-analysis

OBJECTIVE: To evaluate the effectiveness and safety of Xuanbai Chengqi decoction(宣白承气汤, XBCQD) plus Western Medicine(WM) in treatment of severe pneumonia with symptom pattern of phlegm-heat obstructing lung.METHODS: Randomized controlled trials(RCTs) investigating the effect of XBCQD on severe pneumonia with symptom pattern of phlegm-heat obstructing lung, were included in this study. Seven electronic databases were searched up to March 2019.Meta-analysis was conducted by Review Manager5.3 software. Risk ratio(RR) and mean difference(MD) with 95% confidence interval(CI) were used as effect estimation.RESULTS: Eleven RCTs were included, involving992 participants. Meta-analysis showed that XBCQD combined with WM achieved better effectiveness than WM alone in terms of total effective rate[RR = 1.23, 95%CI(1.16, 1.30)], clinical pulmonary infection score [CPIS, MD =-2.02, 95%CI(-2.42,-1.63)], acute physiology and chronic health evaluation Ⅱ [APACHE Ⅱ, MD =-6.81, 95% CI(-8.26,5.37)], mechanical ventilation time [MD =-101.41,95%CI(-140.47,-62.34)], and lactic acid content in arterial blood [MD =-2.41, 95%CI(-2.64,-2.18)].CONCLUSION: XBCQD combined with WM had better benefit than WM alone to the patients of severe pneumonia with the symptom pattern of phlegm-heat obstructing lung. However, due to low quality of the included studies, more rigorously designed studies were required to further evaluate the effectiveness and safety of XBCQD in the treatment of severe pneumonia with symptom pattern of phlegm-heat obstructing lung.