共被期刊论文引用了2次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 基于主成分聚类和PLS回归分析的穿心莲质量等级评价研究显示文摘目的结合性状指标和内在质量指标对穿心莲进行质量等级评价,建立等级评价模型,为穿心莲及其他中药材等级标准的制定提供参考。方法采收不同批次的穿心莲药材样品,测量和描述穿心莲药材的性状,采用数量分类学的方法对其评价指标进行编码,以HPLC法测定药材的4个二萜内酯类成分的含量,将编码后的性状指标和4个内酯的总量及醇溶性浸出物含量做相关性分析,初步筛选出13个评价指标,应用主成分聚类分析法对这13个指标进行分析,划分等级;并以偏最小二乘-判别分析(PLS-DA)对所划分的等级进行判别分析;最后,通过偏最小二乘回归分析(PLS)建立穿心莲药材等级的预测模型。结果根据主成分聚类分析法可以将穿心莲药材划分为3个等级,PLS-DA分析表明该等级划分合理;PLS回归分析所建立的穿心莲质量等级的预测模型为药材等级(Y)=3.761-0.020×叶含量-0.388×穿心莲内酯含量-1.117×新穿心莲内酯含量-0.274×去氧穿心莲内酯含量-0.287×脱水穿心莲内酯含量-0.302×4个内酯总量-0.104×醇溶性浸出物含量-0.015×茎颜色-0.0084×叶颜色-0.003×茎基部直径+0.020×分枝数+0.137×茎上部直径+0.011×株高,若Y在0.7~1.3,则预测穿心莲药材为一等品;若Y在1.7~2.3,则为二等品;若Y在2.7~3.3则为合格品。结论主成分聚类分析法结合PLS回归建立的穿心莲等级快速评价模型评价效果较为理想,可作为穿心莲药材质量等级的快速评价模型,为穿心莲及其他中药材质量等级评价及其等级标准的制定提供新思路。 | 崔丹丹 曾令杰 黄嘉玲 冯晓云 张晓元 冯凯 | 2019 | 中草药2019，50，13： | 15 |
| 2 | Andrographolide as a potent and promising antiviral agent显示文摘Andrographolide is a labdane diterpenoid extracted and purified from the aerial parts of plants belonging to genus Andrographis(Acanthaceae).The research has shown the plant based compound is low cytotoxic,having antimicrobial,anti-cancer,antiviral and anti-parasitic effects.Andrographolide both prevent spread as well as transmission of virus to neighboring cells by interfering with different cell signaling pathways.In addition to its medicinal value,plant has been found having nutritional value.Therefore being cost effective,easy availability and having nutritional value as a natural supplement,can be used to improve the quality of life in countries having low standard of living.Due to the limited number of effective vaccines,the plant-based antiviral drugs have provided considerable hope for fighting against the viral infections.The plant-derived compound when produced in large quantities is cost effective with low cytotoxic effects.However,much deep insight research at the molecular level is needed to develop the molecules against the viral infection.This paper aims to highlight the antiviral role of Andrographolide that can made significant contributions toward the improvement of human health and will also summarize the current status and future strategies concerning the therapeutic applications of Andrographolide to combat different viral disease in humans. | Latif Reshi Wang Chi-Yong | 2020 | Chinese Journal of Natural Medicines2020，18，10： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员