Studying the skin care efficacy of recombinant humanized collagen based on in vitro level.The stability of the recombinant humanized collagen was first analyzed by treating at different temperatures,then its skincare ...Studying the skin care efficacy of recombinant humanized collagen based on in vitro level.The stability of the recombinant humanized collagen was first analyzed by treating at different temperatures,then its skincare efficacy based on in vitro level was evaluated by detecting the inhibition rate of elastase,the inhibition rate of collagenase,the protein content of type I collagen in human fibroblasts,the inhibition of reactive oxygen species(ROS)with human keratinocytes,and the effects of the recombinant humanized collagen on the expression of hyaluronic acid(HA),filaggrin(FLG)and transglutaminase 1(TGM1)in keratinocytes.The results showed that recombinant humanized collagen was able to maintain stability at temperatures below 70℃.With regard to its skincare efficacy,recombinant humanized collagen could inhibit elastase and collagenase activities and promote the increase of type I collagen content in human fibroblasts.It also showed good inhibition of ROS in keratinocytes in vitro and could increase the expression of HA,FLG,and TGM1 in keratinocytes.In short,the recombinant humanized collagen exhibited a favourable skin care effect in vitro level.This study proved that it has potential firming,anti-wrinkle,moisturizing,and repairing efficacy,and is a valuable cosmetic raw material.展开更多
应用网络药理学方法及分子对接技术探析逍遥散治疗肝郁脾虚型抑郁症、乳腺增生和功能性消化不良的作用机制,为中药"异病同治"科学内涵的诠释提供理论依据。利用中药数据库(traditional Chinese medicine systems pharmacology...应用网络药理学方法及分子对接技术探析逍遥散治疗肝郁脾虚型抑郁症、乳腺增生和功能性消化不良的作用机制,为中药"异病同治"科学内涵的诠释提供理论依据。利用中药数据库(traditional Chinese medicine systems pharmacology database and analysis platform, TCMSP)获取和筛选逍遥散的活性成分,并将其与现有的治疗上述3种疾病的药物进行主成分分析(principal component analysis, PCA)判断其生物活性;结合GeneCards数据库、TTD数据库、CTD数据库和DrugBank数据库获取疾病靶点同时得到逍遥散治疗抑郁症、乳腺增生和功能性消化不良的作用靶点。采用Cytoscape软件绘制逍遥散"异病同治"的"单味药-活性成分-共同靶点"网络图,寻找核心靶点,然后对共有靶点进行Kyoto encyclopedia of genes and genomes(KEGG)通路分析和gene ontology(GO)富集分析。该研究收集得到逍遥散活性成分121个,逍遥散"异病同治"共有靶点38个,关键生物通路包括糖尿病并发症中的advanced glycation and products(AGEs)-receptor for advanced glycation and products(RAGE)信号通路、HIF-1信号通路以及癌症相关通路等。逍遥散"异病同治"抑郁症、乳腺增生和功能性消化不良的关键靶点为IL6、IL4和TNF等,关键活性成分有山柰酚、槲皮素和芦荟大黄素等。最后,分子对接结果表明,关键活性成分与靶点之间具有很强的亲和力,验证了实验结果。逍遥散可能是通过减少炎症反应治疗肝郁脾虚型疾病。研究结果为阐释中药复方"异病同治"科学内涵提供了新的思路与方法,也将为深入了解逍遥散效应机制、探索其新的临床应用提供了理论依据。展开更多
文摘Studying the skin care efficacy of recombinant humanized collagen based on in vitro level.The stability of the recombinant humanized collagen was first analyzed by treating at different temperatures,then its skincare efficacy based on in vitro level was evaluated by detecting the inhibition rate of elastase,the inhibition rate of collagenase,the protein content of type I collagen in human fibroblasts,the inhibition of reactive oxygen species(ROS)with human keratinocytes,and the effects of the recombinant humanized collagen on the expression of hyaluronic acid(HA),filaggrin(FLG)and transglutaminase 1(TGM1)in keratinocytes.The results showed that recombinant humanized collagen was able to maintain stability at temperatures below 70℃.With regard to its skincare efficacy,recombinant humanized collagen could inhibit elastase and collagenase activities and promote the increase of type I collagen content in human fibroblasts.It also showed good inhibition of ROS in keratinocytes in vitro and could increase the expression of HA,FLG,and TGM1 in keratinocytes.In short,the recombinant humanized collagen exhibited a favourable skin care effect in vitro level.This study proved that it has potential firming,anti-wrinkle,moisturizing,and repairing efficacy,and is a valuable cosmetic raw material.
文摘应用网络药理学方法及分子对接技术探析逍遥散治疗肝郁脾虚型抑郁症、乳腺增生和功能性消化不良的作用机制,为中药"异病同治"科学内涵的诠释提供理论依据。利用中药数据库(traditional Chinese medicine systems pharmacology database and analysis platform, TCMSP)获取和筛选逍遥散的活性成分,并将其与现有的治疗上述3种疾病的药物进行主成分分析(principal component analysis, PCA)判断其生物活性;结合GeneCards数据库、TTD数据库、CTD数据库和DrugBank数据库获取疾病靶点同时得到逍遥散治疗抑郁症、乳腺增生和功能性消化不良的作用靶点。采用Cytoscape软件绘制逍遥散"异病同治"的"单味药-活性成分-共同靶点"网络图,寻找核心靶点,然后对共有靶点进行Kyoto encyclopedia of genes and genomes(KEGG)通路分析和gene ontology(GO)富集分析。该研究收集得到逍遥散活性成分121个,逍遥散"异病同治"共有靶点38个,关键生物通路包括糖尿病并发症中的advanced glycation and products(AGEs)-receptor for advanced glycation and products(RAGE)信号通路、HIF-1信号通路以及癌症相关通路等。逍遥散"异病同治"抑郁症、乳腺增生和功能性消化不良的关键靶点为IL6、IL4和TNF等,关键活性成分有山柰酚、槲皮素和芦荟大黄素等。最后,分子对接结果表明,关键活性成分与靶点之间具有很强的亲和力,验证了实验结果。逍遥散可能是通过减少炎症反应治疗肝郁脾虚型疾病。研究结果为阐释中药复方"异病同治"科学内涵提供了新的思路与方法,也将为深入了解逍遥散效应机制、探索其新的临床应用提供了理论依据。