Using silica gel column chromatography and recrystallization,a light yellow needle crystal with a purity of 97.21% was obtained from ethyl acetate fraction of ethanol extract from dry root of Glehnia littoralis Fr.Sch...Using silica gel column chromatography and recrystallization,a light yellow needle crystal with a purity of 97.21% was obtained from ethyl acetate fraction of ethanol extract from dry root of Glehnia littoralis Fr.Schmidt ex Miq.,and was identified as bergapten by means of NMR.The experimental result of antitumor activity in vitro shows that 0.01-100.00 mg·L-1 bergapten have inhibitory effect to liver cancer cell line HEP-G2,in which inhibition of 100.00 mg·L-1 bergapten is the highest with an inhibitory rate of 95.0%.In concentrations of 0.01-100.00 mg·L-1,only 100.00 mg·L-1 bergapten has an inhibitory effect to stomach cancer cell line SGC-7901 with an inhibitory rate of 79.6%.展开更多
文摘Using silica gel column chromatography and recrystallization,a light yellow needle crystal with a purity of 97.21% was obtained from ethyl acetate fraction of ethanol extract from dry root of Glehnia littoralis Fr.Schmidt ex Miq.,and was identified as bergapten by means of NMR.The experimental result of antitumor activity in vitro shows that 0.01-100.00 mg·L-1 bergapten have inhibitory effect to liver cancer cell line HEP-G2,in which inhibition of 100.00 mg·L-1 bergapten is the highest with an inhibitory rate of 95.0%.In concentrations of 0.01-100.00 mg·L-1,only 100.00 mg·L-1 bergapten has an inhibitory effect to stomach cancer cell line SGC-7901 with an inhibitory rate of 79.6%.
文摘目的 基于生物合成途径及网络药理学理念,从“化学成分-靶点”角度对羌活具有抗炎作用的质量标志物(qualitymarker,Q-Marker)进行预测,建立基于Q-Marker的羌活药材质量评价方法。方法 首先通过生物合成途径筛选可能的Q-Marker;其次采用中药系统药理学数据库与分析平台(traditional Chinese medicine systems pharmacology,TCMSP)预测和筛选羌活的化学成分及潜在作用靶点,然后在人类基因数据库Genecards及OMIM中检索抗炎相关靶基因,利用Cytoscape软件构建“成分-靶点”网络模型,筛选出羌活抗炎作用的Q-Marker;再次采用分子对接技术对筛选出的化合物与靶点(PTGS2)进行对接;最后采用UHPLC同时测定来自不同基原和不同产地的羌活的Q-Marker以评价其资源品质;结果 紫花前胡苷、香叶木苷、佛手柑内酯、羌活醇、异欧前胡素等化合物是羌活抗炎作用的主要活性物质,可作为Q-Marker的主要选择。分子对接结果证实紫花前胡苷、香叶木苷、佛手柑内酯、羌活醇、异欧前胡素等Q-Marker与PTGS2水解酶的结合能低,构象稳定。建立了基于UHPLC-DAD测定羌活Q-Marker的方法,15批不同基原和产地的样品,紫花前胡苷质量分数为0.05~14.84 mg/g,香叶木苷质量分数0.04~3.88 mg/g,佛手柑内酯质量分数为0.07~0.32 mg/g,羌活醇质量分数为0.10~16.76 mg/g,异欧前胡素质量分数为0.20~7.99 mg/g。结论 基于生物合成途径、网络药理、分子对接和UHPLC预测并分析羌活抗炎Q-Marker的方法科学、可行,为羌活的质量标准提升和资源品质评价提供新思路。
