AIM: To investigate the cytotoxicity, anti-inflammatory activity, and action mechanism of root bark extracts of Acanthopanax henryi. METHOD: The hot methanol extract of the root bark of A. henryi was subjected to XAD-...AIM: To investigate the cytotoxicity, anti-inflammatory activity, and action mechanism of root bark extracts of Acanthopanax henryi. METHOD: The hot methanol extract of the root bark of A. henryi was subjected to XAD-4 column chromatography eluting with a gradient of methanol in water. The cytotoxicity and anti-inflammatory effects of the MeOH fractions were evaluated on the inhibition on lipopolysaccharide(LPS)-induced nitric oxide, prostaglandin E2, interleukin-1β, and interleukin-6 production in RAW 264.7 macrophages. RESULTS: The 80% MeOH fraction was a better inhibitor of LPS-induced NO, PGE2, IL-1β, and IL-6 production, and expression of inducible nitric oxide synthase(iNOS) at the protein levels in a concentration-dependent manner. CONCLUSION: The 80% MeOH fraction of A. henryi root bark has significant anti-inflammatory activity. This provides a pharmacological basis for clinical application for the treatment of inflammation.展开更多
目的研究优化糙叶五加叶总黄酮的大孔吸附树脂纯化工艺。方法以处理后的总黄酮的质量分数和总黄酮得率为考察指标,采用单因素实验结合响应曲面设计法进行纯化工艺优化研究。结果 D101型大孔吸附树脂对糙叶五加叶总黄酮有较好的吸附和洗...目的研究优化糙叶五加叶总黄酮的大孔吸附树脂纯化工艺。方法以处理后的总黄酮的质量分数和总黄酮得率为考察指标,采用单因素实验结合响应曲面设计法进行纯化工艺优化研究。结果 D101型大孔吸附树脂对糙叶五加叶总黄酮有较好的吸附和洗脱效果,其最佳的纯化工艺条件为色谱柱的径高比为1∶10,25.0 g D101大孔树脂的上样量为750 mg,溶剂体系为50%乙醇,洗脱体积流量为5 m L/min,洗脱体积为130 m L。在此最佳优化条件下,糙叶五加叶总黄酮的理论质量分数为75.69%,实际质量分数达到75.87%;总黄酮得率为30.13%。结论 D101型大孔吸附树脂宜于纯化糙叶五加叶中的总黄酮,且响应面法能有效地优化其纯化工艺。展开更多
基金Hunan provincial Natural Science Foundation(11JJ2042)Innovation Platform and Open Foundation Project o Higher Colleges of Hunan Province,China(11K048)Changsha City Science and Technology Bureau Key Projects(K1207010-21)
基金supported by the PhD Program Open Foundation of the Food and Drug Administration of KoreaHunan Provincial Natural Science Foundation(No.11JJ2042)+1 种基金the Science of Pharmaceutical Analysis of Twelfth Five-Year Key Discipline Projects of Hunan University of Chinese MedicineScience of Chinese Materia Medica of Twelfth Five-Year Key Discipline Projects of Hunan Province
文摘AIM: To investigate the cytotoxicity, anti-inflammatory activity, and action mechanism of root bark extracts of Acanthopanax henryi. METHOD: The hot methanol extract of the root bark of A. henryi was subjected to XAD-4 column chromatography eluting with a gradient of methanol in water. The cytotoxicity and anti-inflammatory effects of the MeOH fractions were evaluated on the inhibition on lipopolysaccharide(LPS)-induced nitric oxide, prostaglandin E2, interleukin-1β, and interleukin-6 production in RAW 264.7 macrophages. RESULTS: The 80% MeOH fraction was a better inhibitor of LPS-induced NO, PGE2, IL-1β, and IL-6 production, and expression of inducible nitric oxide synthase(iNOS) at the protein levels in a concentration-dependent manner. CONCLUSION: The 80% MeOH fraction of A. henryi root bark has significant anti-inflammatory activity. This provides a pharmacological basis for clinical application for the treatment of inflammation.
文摘目的研究优化糙叶五加叶总黄酮的大孔吸附树脂纯化工艺。方法以处理后的总黄酮的质量分数和总黄酮得率为考察指标,采用单因素实验结合响应曲面设计法进行纯化工艺优化研究。结果 D101型大孔吸附树脂对糙叶五加叶总黄酮有较好的吸附和洗脱效果,其最佳的纯化工艺条件为色谱柱的径高比为1∶10,25.0 g D101大孔树脂的上样量为750 mg,溶剂体系为50%乙醇,洗脱体积流量为5 m L/min,洗脱体积为130 m L。在此最佳优化条件下,糙叶五加叶总黄酮的理论质量分数为75.69%,实际质量分数达到75.87%;总黄酮得率为30.13%。结论 D101型大孔吸附树脂宜于纯化糙叶五加叶中的总黄酮,且响应面法能有效地优化其纯化工艺。
