Objective:To find out the potential mechanisms of Si-Jun-Zi(SJZ)decoction in the treatment of gastric precancerous lesions(GPL).Methods:A network pharmacology approach was used to analyze the active compounds,drug tar...Objective:To find out the potential mechanisms of Si-Jun-Zi(SJZ)decoction in the treatment of gastric precancerous lesions(GPL).Methods:A network pharmacology approach was used to analyze the active compounds,drug targets and interacting pathways of SJZ decoction in treating GPL.The compounds and predicted targets of SJZ decoction were screened from TCMSP,and the disease targets were obtained from GeneCards.The therapeutic mechanisms of action of the SJZ decoction were analyzed by gene ontology(GO)enrichment,Kyoto encyclopedia of genes and genomes pathway enrichment analyses.Results:The results show that 111 compounds and 90 targets were obtained in this work.These targets were further mapped to 654 GO biological process terms and 21 remarkably pathways.Active compounds,targets,and pathways were used to construct a compound-target network,a target-pathways network,and an integrated GPL pathway.These results indicated that SJZ decoction may treat the dysfunctions of GPL mainly from intervening in the mucosal inflammation,cell apoptosis process,and cell proliferation.Conclusions:This work provided a novel approach to understand the pathogenesis of GPL and revealed the therapeutic mechanisms of SJZ decoction,which facilitate the modernization of herbal medicine for complex diseases in the future.展开更多
Regarding flowing granular media as weak transverse isotropic media, the phase velocity expressions of wave P, wave SH and wave SV were deduced, the propagation characteristics of waves in flowing granular media were ...Regarding flowing granular media as weak transverse isotropic media, the phase velocity expressions of wave P, wave SH and wave SV were deduced, the propagation characteristics of waves in flowing granular media were analyzed. The experiments show that vibration has great influence on granular fluidity. The wavefront of wave P is elliptic or closely elliptic, the wavefront of wave SH is elliptic, and the wavefront of wave SV is not elliptic. Wave propagation in the granular flowing field attenuates layer after layer. The theory and experiment both substantiate that the density difference is the key factor which leads to the attenuation of vibrating energy. In terms of characteristics of wave propagation one can deduce that vibrating waves have less influence on flowability of granules when the amplitude and frequency are small. However, when the amplitude and frequency increase gradually, the eccentricity of ellipsoid, the viscosity resistance and inner friction among granules, and shear intensity of granules decrease, and the loosening coefficient of granules increases, which shows the granules have better flowability.展开更多
Background:To explore the action mechanism of the classic ancient prescription Si-Jun-Zi decoction in slowing down cataract process by network pharmacology.Methods:In Traditional Chinese Medicines for Systems Pharmaco...Background:To explore the action mechanism of the classic ancient prescription Si-Jun-Zi decoction in slowing down cataract process by network pharmacology.Methods:In Traditional Chinese Medicines for Systems Pharmacology Database and Analysis Platform Database,screening the chemical components and functional targets of the classic ancient prescription Si-Jun-Zi decoction,and the targets of cataract disease were obtainded through GeneCards and the Online Mendelian Inheritance in Man Database.In the STRING database,the protein-protein interaction network was built.And network visualization were created in Cytoscape.The genetic ontology and Kyoto Gene and Genome Encyclopedia pathways of key proteins were enriched via the DAVID data platform.Results:Ninety-six active components and 33 key targets were obtained in this work.The protein-protein interaction network consisted of 33 proteins.There were 33 genetic ontology entries and 72 Kyoto Gene and Genome Encyclopedia pathway enrichment analysis.Conclusion:This work provided a new means to understand the pathogenesis of cataract and revealed the action mechanisms of the classic ancient prescription Si-Jun-Zi decoction.展开更多
目的建立新生颗粒中马兜铃酸A的限量检查方法,以保证临床用药的安全性。方法采用高效液相色谱法,色谱柱:Phenomenex Luna C18(2)(4.6mm×250mm,5μm);流动相:甲醇-3.3%醋酸(75∶25);流速:1.0mL/min;柱温:室温(25℃);检测波长:320nm...目的建立新生颗粒中马兜铃酸A的限量检查方法,以保证临床用药的安全性。方法采用高效液相色谱法,色谱柱:Phenomenex Luna C18(2)(4.6mm×250mm,5μm);流动相:甲醇-3.3%醋酸(75∶25);流速:1.0mL/min;柱温:室温(25℃);检测波长:320nm。结果马兜铃酸A在0.1092～0.9828μg范围内线性良好(r=0.9999),平均回收率为96.00%,RSD为1.43%,最低检测限为0.819ng,3批新生颗粒中均未检出马兜铃酸A。结论该方法简便,专属性强,灵敏度高,可用于新生颗粒中马兜铃酸A的限量检查。展开更多
文摘Objective:To find out the potential mechanisms of Si-Jun-Zi(SJZ)decoction in the treatment of gastric precancerous lesions(GPL).Methods:A network pharmacology approach was used to analyze the active compounds,drug targets and interacting pathways of SJZ decoction in treating GPL.The compounds and predicted targets of SJZ decoction were screened from TCMSP,and the disease targets were obtained from GeneCards.The therapeutic mechanisms of action of the SJZ decoction were analyzed by gene ontology(GO)enrichment,Kyoto encyclopedia of genes and genomes pathway enrichment analyses.Results:The results show that 111 compounds and 90 targets were obtained in this work.These targets were further mapped to 654 GO biological process terms and 21 remarkably pathways.Active compounds,targets,and pathways were used to construct a compound-target network,a target-pathways network,and an integrated GPL pathway.These results indicated that SJZ decoction may treat the dysfunctions of GPL mainly from intervening in the mucosal inflammation,cell apoptosis process,and cell proliferation.Conclusions:This work provided a novel approach to understand the pathogenesis of GPL and revealed the therapeutic mechanisms of SJZ decoction,which facilitate the modernization of herbal medicine for complex diseases in the future.
基金TheNationalNaturalScienceFoundationofChina (No .5 0 0 740 34 )
文摘Regarding flowing granular media as weak transverse isotropic media, the phase velocity expressions of wave P, wave SH and wave SV were deduced, the propagation characteristics of waves in flowing granular media were analyzed. The experiments show that vibration has great influence on granular fluidity. The wavefront of wave P is elliptic or closely elliptic, the wavefront of wave SH is elliptic, and the wavefront of wave SV is not elliptic. Wave propagation in the granular flowing field attenuates layer after layer. The theory and experiment both substantiate that the density difference is the key factor which leads to the attenuation of vibrating energy. In terms of characteristics of wave propagation one can deduce that vibrating waves have less influence on flowability of granules when the amplitude and frequency are small. However, when the amplitude and frequency increase gradually, the eccentricity of ellipsoid, the viscosity resistance and inner friction among granules, and shear intensity of granules decrease, and the loosening coefficient of granules increases, which shows the granules have better flowability.
文摘Background:To explore the action mechanism of the classic ancient prescription Si-Jun-Zi decoction in slowing down cataract process by network pharmacology.Methods:In Traditional Chinese Medicines for Systems Pharmacology Database and Analysis Platform Database,screening the chemical components and functional targets of the classic ancient prescription Si-Jun-Zi decoction,and the targets of cataract disease were obtainded through GeneCards and the Online Mendelian Inheritance in Man Database.In the STRING database,the protein-protein interaction network was built.And network visualization were created in Cytoscape.The genetic ontology and Kyoto Gene and Genome Encyclopedia pathways of key proteins were enriched via the DAVID data platform.Results:Ninety-six active components and 33 key targets were obtained in this work.The protein-protein interaction network consisted of 33 proteins.There were 33 genetic ontology entries and 72 Kyoto Gene and Genome Encyclopedia pathway enrichment analysis.Conclusion:This work provided a new means to understand the pathogenesis of cataract and revealed the action mechanisms of the classic ancient prescription Si-Jun-Zi decoction.
文摘目的建立新生颗粒中马兜铃酸A的限量检查方法,以保证临床用药的安全性。方法采用高效液相色谱法,色谱柱:Phenomenex Luna C18(2)(4.6mm×250mm,5μm);流动相:甲醇-3.3%醋酸(75∶25);流速:1.0mL/min;柱温:室温(25℃);检测波长:320nm。结果马兜铃酸A在0.1092～0.9828μg范围内线性良好(r=0.9999),平均回收率为96.00%,RSD为1.43%,最低检测限为0.819ng,3批新生颗粒中均未检出马兜铃酸A。结论该方法简便,专属性强,灵敏度高,可用于新生颗粒中马兜铃酸A的限量检查。
