Thermal treatment is an essential aspect of the manufacture process of TCM, such as extraction, concentration, drying and preparation. Part of the effective components may undergo a series of chemical and physical changes, which affect the final preparations “quantity”, “quality”, “efficiency”, with a direct relationship between the stability and safety of TCM. Previous studies showed the anti-inflammatory activity of Andrographis preparations were in a dynamic process, changed with the different stages of technological process. Besides, the activity is not positively correlated with the content of andrographolide, suggesting that there may be a synergistic effect among the efficacy components. This study is based on active components to build a multi-level group between and among “quality” - “quantity” - “efficiency”. Following the principle of tracking the efficacy of the process of Andrographis preparation, the research strategies of bio-capture technology, feedback filter and knock in/out are also be used for reference. From two aspects (the cellular and molecular level), chemical fingerprint will be converted into bio-fingerprint to achieve the identification of the “quality” of the effective components, and then build relationships between the quantity and the efficiency (golden standard) by chemometric methods, for making clear of the critical control points of the heat process (extraction, concentration and drying) of Andrographis preparation, while providing pilot study for dynamic control of the manufacture process of TCM.
中草药的成药过程(提取-浓缩-干燥-制剂),热加工为必备环节,部分药效成分可能发生一系列的物理化学变化,从而影响最终制剂的“量”、“质”、“效”,直接关系中药质量的稳定和临床用药的安全有效。前期研究发现:穿心莲制剂的抗炎活性随生产过程不同而发生动态变化,且并非与穿心莲内酯含量呈正相关,暗示可能存在药效组分群间的协同效应。基于此,本课题立足于构建多层次药效组分群间“质”—“量”—“效”统一,以穿心莲制剂生产过程药效活性追踪为主线原则,借鉴“生物捕集技术”、“反馈筛选”和“敲入/敲出”研究策略,从两个方面(细胞和分子水平)将化学指纹图谱转化为生物指纹图谱,实现药效组分群“质”的识别,并通过化学计量学方法构建药效组分群间量比关系(黄金标准),明确穿心莲制剂热处理环节(提取-浓缩-干燥)关键控制点,实现对穿心莲制剂生产过程质量的动态控制,同时为中成药生产过程链的动态控制提供示范研究。
中草药的成药过程(提取-浓缩-干燥-制剂),热加工为必备环节,部分药效成分可能发生一系列的物理化学变化,从而影响最终制剂的“量”、“质”、“效”,直接关系中药质量的稳定和临床用药的安全有效。前期研究发现:穿心莲制剂的抗炎活性随生产过程不同而发生动态变化,且并非与穿心莲内酯含量呈正相关,暗示可能存在药效组分群间的协同效应。.基于此,本课题立足于构建多层次药效组分群间“质”—“量”—“效”统一,以穿心莲制剂生产过程药效活性追踪为主线原则,借鉴“生物捕集技术”、“反馈筛选”和“敲入/敲出”研究策略,采用RAW264.7、Caco-2细胞、COX-2酶为靶标,从细胞和分子水平两个层面,将化学指纹图谱转化为生物指纹图谱,实现药效组分群“质”的识别。从穿心莲提取液中共筛选鉴定出了15个抗炎活性成分,包括8个内酯类成分、6个黄酮类成分和1个甾醇类化合物。首次证实了穿心莲中黄酮类成分具有免疫活性。其中4个化合物为首次发现的COX-2配体。.指标成分含量不能完全代替药材的整体质量,其药效活性可能存在药效组分群间的协同配伍效应。采用化学计量学方法构建药效组分群间量比关系,交互作用结果显示穿心莲内酯和穿心莲黄酮苷E的浓度对NO抑制率的影响较大。预测7种活性成分发挥最大抗炎作用的最佳配比为9:9:9:2:2:2:2。在最佳浓度配比条件下,NO抑制率的最大理论预测值为81.24%。.穿心莲制剂各制备环节中抗氧化及抗炎活性整体均呈下降趋势,随着浓缩密度的增加,烘干时间的延长,制剂抗炎活性不断下降。提示后期穿心莲制剂二次开发或整体工艺水平提升中应重点关注浓缩、干燥环节,提高中间物料多工序多指标的质量监控。通过明确制剂环节的关键控制点,实现对生产过程质量的动态监测,为中成药生产过程链的动态控制提供示范参考。
{{i.achievement_title}}
数据更新时间:2023-05-31
涡度相关技术及其在陆地生态系统通量研究中的应用
一种光、电驱动的生物炭/硬脂酸复合相变材料的制备及其性能
硬件木马:关键问题研究进展及新动向
宁南山区植被恢复模式对土壤主要酶活性、微生物多样性及土壤养分的影响
转录组与代谢联合解析红花槭叶片中青素苷变化机制
“等效减毒成分群”导向的红曲制剂质量控制新模式研究
基于关键成分群构建“含量-基原-药效”关联的枸杞子质量评价体系研究
银杏叶制剂等效成分群的发现与质量控制新模式研究
基于“血清药效成分群”和“逐项敲除法”的左金丸药效物质基础分析方法研究