Using Network Pharmacology to Explore the Mechanism of Capsicum in Treating Type 2 Diabetes Mellitus

[Objectives] The paper was to explore the mechanism of capsicum ( Capsicum annuum L.) in treating type 2 diabetes mellitus (T2DM) and search for new targets. [Methods] The active ingredients of capsicum were queried from TCMSP database to obtain the corresponding target proteins. The related targets of T2DM were screened from GeneCards database, and the target intersection of active ingredients of capsicum and diabetes mellitus was obtained via Venny software. The protein-protein interaction (PPI) network of the compounds was constructed using STRING database, and the GO bio-function and KEGG pathway enrichment were further analyzed using Metascape database. [Results] Through TCMSP database query and conditional screening, 14 candidate active molecules, 93 potential targets and 225 related pathways were obtained. [Conclusions] The results of GO and KEGG enrichment analysis show that the main active ingredients of capsicum play a role in the treatment of T2DM by regulating cancer pathways, chemical carcinogenesis—receptor activation, proteoglycans in cancer, and prostate cancer pathways, which will provide an important theoretical basis for subsequent research.

Component Analysis of Volatile Oil of Garlic from Different Districts and Assay of Allicin Content

[ Objective] The aim was to study the chemical component of volatile oil of garlic in different districts. [ Method] GC-MS was used to an- alyze the composition of the garlic volatile oil in Guiyang, Guizhou Majiang, Shandong, Yunnan and Chongqing and the HPLC method was used to assay the content of gadicin. [ Result]Gadicin in different essential oil had the highest content but varied a lot. The sampling amount of garlicin be- tween 0.562 and 2.810 μg was in a good linear relation （R =0.999 2, n = 5 ） with peak area, the average recovery rate was 99.39, RSD = 1.76%. [ Conclusion] GC-MS can be used to analysis the composition of essential oil quickly and effectively. The liquid chromatographic analysis of garlicin was simple, reliable and reproducible. The study provided the theoretical basis for selecting garlic in gadic flavor oil production and improving quality of gadicin oil.

Effects of Different Compounding of Formulae on Content of Gardenoside in Yin Chen Hao Decoction

In order to observe the effects of the ground and intact Zhi Zi (Fructus Gardeniae) and different combinations of the ingredients and refined single Chinese drug granules in Yin Chen Hao Decoction compound prescription on the contents of gardenoside (an effective component of the prescription), the contents of gardenoside were determined with reversed phase high performance liquid chromatography (HPLC), with acetonitrile-water (15:85) as mobile phase, at wave length 238nm. The results indicated that the gardenoside-decocted-out rates in the decoctions prepared by different combinations of the ingredients with the ground Zhi Zi (Fructus Gardeniae) all were higher significantly than those in the decoction with intact Zhi Zi (Fructus Gardeniae), and generally, different combinations of the ingredients in the decoction had only little effect on the gardenoside-decocted-out rate.

Study on Anti-Rheumatoid Arthritis Effect of Lignum Xanthocerais Sorbifoliae Based on Network Pharmacology

[Objectives]To explore the anti-rheumatoid arthritis effect of Lignum Xanthocerais Sorbifoliae by network pharmacology method.[Methods]The chemical constituents and action targets of Lignum Xanthocerais Sorbifoliae were collected by Traditional Chinese Medicine Systems Pharmacology(TCMSP).Target genes of rheumatoid arthritis(RA)were obtained from TTD database.ClusterProfiler was used for gene ontology(GO)enrichment,and Cytoscape 3.7.2 software was used for Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway enrichment and screening of active component-target core network.[Results]There were 24 intersecting targets between active components and diseases.The analysis of GO enrichment and KEGG pathway enrichment indicated that the therapeutic effect of Lignum Xanthocerais Sorbifoliae on rheumatoid arthritis might be related to AGE-RAGE signaling pathway,IL-17 signaling pathway,rheumatoid arthritis pathway,C-type signaling pathway and Toll-like receptor signaling pathway.13 drug active components[flavanes,dihydroflavonoids,stigmasterol,oleanolic acid,kaempferol,ellagic acid,Terchebulin B,Copaene,(Z)-β-Caryophyllene,Aromadendrene,β-Elemene,emodin]and 12 core targets(TNF,IL6,ALOX5,MAPK14,PPARA,AKR1B1,CCR5,PLA2G1B,ADAM17,MMP1,PTGS1,SYK)constituted a core network.[Conclusions]This study could provide a theoretical basis for the treatment of RA with Lignum Xanthocerais Sorbifoliae preparation.

In Silico Molecular Docking Study of Repensine and Bentysrepinine against HBV DNA Polymerase

Bentysrepinine （Y101 ）, a derivative of repensine, is a novel di-peptide structure isolated from Dichondra repens. In vitro and in vivo tests exhibited that bentysrepinine markedly inhibited DNA-HBV and cccDNA activities. The binding mode of Y101 and repensine with DNA polymerase was driven by hydrophobic interactions. This might provide novel recognition of inhibitory effect of Y1 01 against HBV, though its inhibition mechanism needs to be validated by bio-assay at cellular level and of polymerase activity. Preliminary docking study suggested that Y101 might be able to inhibit HIV inverse transcriptase, also have the potential to interact with DNA polymerase and HCV NS5B polymerase.