内部提取电喷射电离质谱学和统计分析的结合,用于高通量分子差异化
Jiaquan Xu1, Zhendong Yu1, Ting Li1
1Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, PR China.
内部提取电喷射电离质谱仪 (iEESI-MS) 快速区分了Rehmannia glutinosa的起源和加工效果. 这种方法有助于传统中医药的质量评估和生化机制研究.
科学领域:
- 药理学是指药理学,即药理学是指药理学.
- 分析化学 分析化学
- 传统中国医药 传统中国医药
背景情况:
- 雷曼尼亚葡萄糖 (Rehmannia glutinosa) 是传统中医药 (TCM) 中的重要草药,具有多样化的药理作用.
- 地理来源显著影响R. glutinosa的化学成分和治疗性质.
- 了解这些变异对于质量控制和疗效至关重要.
研究的目的:
- 开发一种高通量方法,用于R. glutinosa样品的分子分化.
- 根据其原产地来区分R. glutinosa.
- 研究干燥和加工的R. glutinosa之间的分子差异及其药理含义.
主要方法:
- 使用内部提取电喷射电离质谱仪 (iEESI-MS) 进行快速样本分析.
- 采用多变量统计分析,特别是直角局部最小平方-区分分析 (OPLS-DA),用于数据解释.
- 分析了来自四个不同的来源的干燥和加工的R. glutinosa样本,没有先前的样本准备.
主要成果:
- 实现了R. glutinosa.的高通量 (>200峰) 和快速 (<2分钟/样本) 分析.
- 成功建立了OPLS-DA模型,以根据原产地区分样本.
- 确定了31种不同的成分,阐明了与加工和药理作用有关的分子区别.
结论:
- 与OPLS-DA相结合的iEESI-MS提供了一种强大而有效的方法来评估R. glutinosa的质量.
- 这种方法方便研究TCM中加工诱导的生物化学变化.
- 提供了强有力的质量控制和理解传统药物的作用机制的基础.
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