相关实验视频

Updated: Jan 10, 2026

Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis

Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis

Published on: November 17, 2011

一种针对性广泛的氧利平的分析方法,包括使用奇拉液体染色学 (tandem mass spectrometry) 测量氧利平的反体

Yutaka Umakoshi¹, Yoshihiro Izumi², Tomomi Hashidate-Yoshida³

¹Department of Systems Life Sciences, Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, Japan; Division of Analytical and Measuring Instruments, Shimadzu Corporation, Kyoto, Japan.

Journal of chromatography. A

|November 25, 2025

概括

现在,一种新的分析方法可以分离氧利平酶体,这对于理解炎症和疾病至关重要. 这一突破使得在生物样本中精确测量这些重要的脂质信号分子.

科学领域:

利皮多米克 (Lipidomics) 是一种消化剂.
分析化学分析化学
生物化学生物化学

背景情况:

来自多不和脂肪酸的氧利平,调节关键的生理过程,如炎症.
传统的氧利平测量方法缺乏区分反体的能力,限制了详细的途径分析.
氧利平的反体差异可以显著影响其生物活性和疾病中的作用.

研究的目的:

开发一种新的,广泛针对的分析方法,能够分离氧利烯反体.
建立一个全面的分析方法,同时量化许多氧利平异构体和异构体.
应用开发的方法来分析生物样本中的氧利平蛋白样本,包括小鼠血和组织.

主要方法:

选七个多糖化合物衍生的奇拉列,以确定最佳的反体分离.
选择CHIRALPAK的IG列,因为它具有较高的eicosanoid异构体分辨率.
开发和验证一种用于染色学分离和分析151个氧利平的方法,包括40个反体对.

主要成果:

开发的方法成功地分离了59个测试的同位素对中的55个,包括enantiomers.
对小鼠血和组织的分析揭示了明显的氧利平蛋白概况,每样检测到大约100种化合物.
对于氧伊可沙特氨酸 (HETE) 观察到的选择性差异,其中12-HETE,9-HETE和11-HETE的特定类表现出组织特异的丰度.

结论:

已建立的分析方法使得广泛向的氧利平分析,包括反体分离.
这种方法对于生物标志物发现和更准确地了解氧利平的形成途径是有价值的.
这些发现凸显了在生物和病理学上考虑氧利平酶体的重要性.

关键词:

基拉尔分离方式基拉尔分离在 LC/MS 中使用.利皮多米克 (Lipidomics) 是一种消化剂.氧利平素是一种氧化素.广泛针对性的分析.

更多相关视频

Quantitative Analysis of the Cellular Lipidome of Saccharomyces Cerevisiae Using Liquid Chromatography Coupled with Tandem Mass Spectrometry

Quantitative Analysis of the Cellular Lipidome of Saccharomyces Cerevisiae Using Liquid Chromatography Coupled with Tandem Mass Spectrometry

Published on: March 8, 2020

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

相关概念视频

Mass Spectrometry: Complex Analysis

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...

High-Performance Liquid Chromatography: Types of Detectors

High-Performance Liquid Chromatography: Types of Detectors

The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...