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Related Experiment Video

Updated: May 14, 2026

Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis
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Methods for oxysterol analysis: past, present and future.

William J Griffiths1, Peter J Crick, Yuqin Wang

  • 1Institute of Mass Spectrometry, College of Medicine, Grove Building, Swansea University, Singleton Park, Swansea SA2 8PP, UK. w.j.griffiths@swansea.ac.uk

Biochemical Pharmacology
|February 12, 2013
PubMed
Summary
This summary is machine-generated.

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Oxysterols, oxidized cholesterol, play roles in health and disease. Accurate analysis is crucial, as many current oxysterol measurements are flawed due to autoxidation.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Pathology

Background:

  • Oxysterols are oxidized forms of cholesterol and its precursors, originating from endogenous enzymes or reactive oxygen species.
  • These compounds possess biological activity, influencing cholesterol homeostasis, neurogenesis, protein prenylation, and immune responses.
  • Oxysterols are implicated in diseases such as atherosclerosis, neurodegeneration, and inflammation.

Purpose of the Study:

  • To critically assess the technical challenges in oxysterol analysis.
  • To highlight best-practice methodologies for accurate oxysterol quantification.
  • To discuss emerging analytical procedures for oxysterols.

Main Methods:

  • Critical review of existing oxysterol analytical techniques.

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Free Radicals in Chemical Biology: from Chemical Behavior to Biomarker Development
14:22

Free Radicals in Chemical Biology: from Chemical Behavior to Biomarker Development

Published on: April 15, 2013

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Last Updated: May 14, 2026

Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis
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Published on: November 17, 2011

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
07:29

Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein

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  • Evaluation of methodologies to mitigate autoxidation artifacts.
  • Discussion of advanced analytical procedures.

    • Main Results:

    • Many reported oxysterol levels in biological samples are inaccurate due to unaddressed autoxidation.
    • Proper analytical strategies are essential to distinguish biologically formed oxysterols from artifacts.
    • Newer procedures offer improved accuracy and reliability in oxysterol detection.

    Conclusions:

    • Accurate oxysterol analysis is vital for understanding their biological roles and disease implications.
    • Awareness and control of autoxidation are paramount for reliable oxysterol measurements.
    • Adoption of best practices and newer methodologies will advance oxysterol research.