Coptis chinensis Franch, a widely used Traditional Chinese Medicine, shows various kinds of bioactivity. The major active components of the herb are considered to be alkaloids. Thus, preparative separation of these al...Coptis chinensis Franch, a widely used Traditional Chinese Medicine, shows various kinds of bioactivity. The major active components of the herb are considered to be alkaloids. Thus, preparative separation of these alkaloids is critical important for further pharmacology and mechanism studies. In the paper, five alkaloids from C. chinensis were purified by HSCCC using the solvent system composed of chloro-form-metha- nol-water (2:1:1, v/v/v) single prepared. The content of each solvent in solvent system were determined by gas chromatography (GC), then according the ratios of solvents in each phase to prepare the mobile and stationary phase respectively. And a comparative study was carried out between together preparation and single preparation of the solvent system. The purities and recoveries of all the products were over 98.5% and 92%. However, 134 mL chloroform, 336 mL methanol and 452 mL water were saved when the two phase were singled by GC. Our research showed an economical method for separating alkaloids from C. chinensis by HSCCC using the solvent system single prepared by GC.展开更多
Objective:To investigate the effect of decocted Coptis chinensis Franch.(Huanglian Jianji,黄连煎剂,HLJJ) and berbenne on the gut microbiota of the rats with metabolic syndrome (MS) induced by high-fat diet (HFD).Metho...Objective:To investigate the effect of decocted Coptis chinensis Franch.(Huanglian Jianji,黄连煎剂,HLJJ) and berbenne on the gut microbiota of the rats with metabolic syndrome (MS) induced by high-fat diet (HFD).Methods:Sixty Sprague Dawley rats were randomly divided into normal diet (ND) group (n =15)and HFD group (n =45).After 8 weeks of feeding,the HFD group was further divided into three groups:a group provided with a combination of HLJJ and HFD for 4 weeks,a group provided with a combination of berberine and HFD for 4 weeks,and a group supplied only with HFD for 4 consecutive weeks.Epididymal fat weight,serum high-density lipoproteincholesterohC (HDL-C),lowdensity lipoproteincholesterol-C (LDL-C) and irisin levels were measured.In addition,the V3-V4 region of the cecum microbiota 16S rRNA gene amplicon was sequenced on the Illumina MiSeq platform.Results:MS was successfully induced in the rats with HFD for 8 weeks.After 12 weeks,serum irisin levels in the HFD + berberine group were significantly increased compared with those in the HFD group (P <.05).The high-quality tags were delineated into 1149 operational taxonomic units at a 97% similarity level.Furthermore,at the genus level,Akkermansia muciniphila (A.muciniphila),Bacteroides,and Ruminococcus were markedly increased,whereas Candidatus arthromitus,Prevotella,Phascolarctobacterium were in great decrease in the HLJJ group and the berberine group,compared with the HFD group.The abundance of A.muciniphila,Ruminococcus gnavus and Bacteroides was significantly higher in the berberine group,whereas,the abundance of Oscillospira was lower in the berberine group,compared with the HLJJ group.Conclusion:HLJJ and berberine changed the gut microbiota in rats with MS.The mechanism underlying the treatments of berberine and HLJJ on HFD-induced MS is partly different.展开更多
目的 基于网络药理学和分子对接探讨“寒凉”中药黄连、黄芩、黄柏(三黄)治疗痴呆的作用机制。方法 通过数据挖掘《宣明论方》,筛选出符合“寒凉”属性并且是治疗“痴呆症”的常见中药黄芩、黄连、黄柏。通过中药系统药理学数据库与分...目的 基于网络药理学和分子对接探讨“寒凉”中药黄连、黄芩、黄柏(三黄)治疗痴呆的作用机制。方法 通过数据挖掘《宣明论方》,筛选出符合“寒凉”属性并且是治疗“痴呆症”的常见中药黄芩、黄连、黄柏。通过中药系统药理学数据库与分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform, TCMSP)数据库检索“三黄”的有效成分和作用靶点,在GeneCards、DrugBank等数据库检索痴呆症(dementia)靶点。利用Cytoscape3.7.2构建“药物-成分-靶点”网络,用VENNY2.1获得“三黄”和痴呆症的交集靶点后,构建蛋白质互作网络(protein-protein interaction networks, PPI),利用Metascape库对核心靶点进行GO、KEGG富集分析,并构建“三黄”药物-成分-靶点-通路-疾病网络,最后利用分子对接,以反向验证“三黄”活性成分与核心靶点之间的关系。结果 筛选出“三黄”治疗痴呆症的重要活性成分有槲皮素、β-谷甾醇、小檗碱、黄连碱等,关键核心靶点有TP53、AKT1、IL6、JUN、MAPK14、TNF等。KEGG通路分析有129条,主要有AGE-RAGE信号介导的糖尿病并发症通路、PI3K-Akt信号通路、钙信号通路等;GO功能中,分子功能117条,细胞组成61条,生物过程1 366条,主要涉及配体激活转录因子活性、DNA结合转录因子结合等分子功能,膜微区、突触后膜等细胞组成,活性氧代谢过程、对脂多糖的反应、炎症反应等生物过程。分子对接结果可以看出重要活性成分与核心靶点全部对接成功。结论 本研究结果表明,“三黄”特有的药性优势,可以通过多成分、多靶点、多通路的方式治疗痴呆症,为“三黄”治疗痴呆症临床应用和机制研究提供了依据。展开更多
以华重楼[Paris polyphylla Smith var.chinensis(Franch.)Hara]植物多种器官为外植体,经不同消毒处理和培养基诱导培养后,观察其愈伤组织的诱导生长情况;并以TTC法检测诱导产生的愈伤组织中的薯蓣皂苷含量。结果表明,华重楼的隐芽、内...以华重楼[Paris polyphylla Smith var.chinensis(Franch.)Hara]植物多种器官为外植体,经不同消毒处理和培养基诱导培养后,观察其愈伤组织的诱导生长情况;并以TTC法检测诱导产生的愈伤组织中的薯蓣皂苷含量。结果表明,华重楼的隐芽、内层芽鞘、根茎、预处理后根茎和子房外植体经诱导培养后,均可不同程度地产生愈伤组织;其中以预处理后根茎外植体产生的愈伤组织生长速度最快,诱导率也最高,为33.5%。经检测结果显示,多次继代培养的华重楼愈伤组织中含有与华重楼对照药材和薯蓣皂苷对照品相同的薯蓣皂苷或其类似物。展开更多
文摘Coptis chinensis Franch, a widely used Traditional Chinese Medicine, shows various kinds of bioactivity. The major active components of the herb are considered to be alkaloids. Thus, preparative separation of these alkaloids is critical important for further pharmacology and mechanism studies. In the paper, five alkaloids from C. chinensis were purified by HSCCC using the solvent system composed of chloro-form-metha- nol-water (2:1:1, v/v/v) single prepared. The content of each solvent in solvent system were determined by gas chromatography (GC), then according the ratios of solvents in each phase to prepare the mobile and stationary phase respectively. And a comparative study was carried out between together preparation and single preparation of the solvent system. The purities and recoveries of all the products were over 98.5% and 92%. However, 134 mL chloroform, 336 mL methanol and 452 mL water were saved when the two phase were singled by GC. Our research showed an economical method for separating alkaloids from C. chinensis by HSCCC using the solvent system single prepared by GC.
文摘Objective:To investigate the effect of decocted Coptis chinensis Franch.(Huanglian Jianji,黄连煎剂,HLJJ) and berbenne on the gut microbiota of the rats with metabolic syndrome (MS) induced by high-fat diet (HFD).Methods:Sixty Sprague Dawley rats were randomly divided into normal diet (ND) group (n =15)and HFD group (n =45).After 8 weeks of feeding,the HFD group was further divided into three groups:a group provided with a combination of HLJJ and HFD for 4 weeks,a group provided with a combination of berberine and HFD for 4 weeks,and a group supplied only with HFD for 4 consecutive weeks.Epididymal fat weight,serum high-density lipoproteincholesterohC (HDL-C),lowdensity lipoproteincholesterol-C (LDL-C) and irisin levels were measured.In addition,the V3-V4 region of the cecum microbiota 16S rRNA gene amplicon was sequenced on the Illumina MiSeq platform.Results:MS was successfully induced in the rats with HFD for 8 weeks.After 12 weeks,serum irisin levels in the HFD + berberine group were significantly increased compared with those in the HFD group (P <.05).The high-quality tags were delineated into 1149 operational taxonomic units at a 97% similarity level.Furthermore,at the genus level,Akkermansia muciniphila (A.muciniphila),Bacteroides,and Ruminococcus were markedly increased,whereas Candidatus arthromitus,Prevotella,Phascolarctobacterium were in great decrease in the HLJJ group and the berberine group,compared with the HFD group.The abundance of A.muciniphila,Ruminococcus gnavus and Bacteroides was significantly higher in the berberine group,whereas,the abundance of Oscillospira was lower in the berberine group,compared with the HLJJ group.Conclusion:HLJJ and berberine changed the gut microbiota in rats with MS.The mechanism underlying the treatments of berberine and HLJJ on HFD-induced MS is partly different.
文摘目的 基于网络药理学和分子对接探讨“寒凉”中药黄连、黄芩、黄柏(三黄)治疗痴呆的作用机制。方法 通过数据挖掘《宣明论方》,筛选出符合“寒凉”属性并且是治疗“痴呆症”的常见中药黄芩、黄连、黄柏。通过中药系统药理学数据库与分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform, TCMSP)数据库检索“三黄”的有效成分和作用靶点,在GeneCards、DrugBank等数据库检索痴呆症(dementia)靶点。利用Cytoscape3.7.2构建“药物-成分-靶点”网络,用VENNY2.1获得“三黄”和痴呆症的交集靶点后,构建蛋白质互作网络(protein-protein interaction networks, PPI),利用Metascape库对核心靶点进行GO、KEGG富集分析,并构建“三黄”药物-成分-靶点-通路-疾病网络,最后利用分子对接,以反向验证“三黄”活性成分与核心靶点之间的关系。结果 筛选出“三黄”治疗痴呆症的重要活性成分有槲皮素、β-谷甾醇、小檗碱、黄连碱等,关键核心靶点有TP53、AKT1、IL6、JUN、MAPK14、TNF等。KEGG通路分析有129条,主要有AGE-RAGE信号介导的糖尿病并发症通路、PI3K-Akt信号通路、钙信号通路等;GO功能中,分子功能117条,细胞组成61条,生物过程1 366条,主要涉及配体激活转录因子活性、DNA结合转录因子结合等分子功能,膜微区、突触后膜等细胞组成,活性氧代谢过程、对脂多糖的反应、炎症反应等生物过程。分子对接结果可以看出重要活性成分与核心靶点全部对接成功。结论 本研究结果表明,“三黄”特有的药性优势,可以通过多成分、多靶点、多通路的方式治疗痴呆症,为“三黄”治疗痴呆症临床应用和机制研究提供了依据。
文摘以华重楼[Paris polyphylla Smith var.chinensis(Franch.)Hara]植物多种器官为外植体,经不同消毒处理和培养基诱导培养后,观察其愈伤组织的诱导生长情况;并以TTC法检测诱导产生的愈伤组织中的薯蓣皂苷含量。结果表明,华重楼的隐芽、内层芽鞘、根茎、预处理后根茎和子房外植体经诱导培养后,均可不同程度地产生愈伤组织;其中以预处理后根茎外植体产生的愈伤组织生长速度最快,诱导率也最高,为33.5%。经检测结果显示,多次继代培养的华重楼愈伤组织中含有与华重楼对照药材和薯蓣皂苷对照品相同的薯蓣皂苷或其类似物。
