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Related Experiment Videos

An enzymatic triglyceride method that is suitable for long-term population studies.

D F Koehler, B W Steele, M M Azar

    Clinical Chemistry
    |February 1, 1978
    PubMed
    Summary

    A new enzymatic triglyceride method offers a reliable alternative for population studies, showing high correlation with established lipid measurement techniques. Methodological issues, like NADH degradation, were identified and resolved for accurate long-term use.

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    Area of Science:

    • Clinical Chemistry
    • Biochemistry
    • Analytical Chemistry

    Background:

    • The Lipid Research Clinics (LRC) method is a standard for triglyceride measurement.
    • Long-term population studies require reliable and reproducible analytical methods.
    • Evaluating alternative methods is crucial for improving efficiency and accuracy.

    Purpose of the Study:

    • To assess the suitability of an enzymatic triglyceride method as an alternative to the LRC method.
    • To standardize and validate the enzymatic method for long-term population studies.
    • To identify and address any methodological challenges during the standardization process.

    Main Methods:

    • Comparison of an enzymatic triglyceride assay with the established LRC extraction/fluorometry method.

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  • Standardization period involving two laboratories over nine weeks.
  • Statistical analysis including correlation, slope, and intercept calculations.

    • Main Results:

    • The enzymatic method demonstrated a strong correlation (r=0.996) with the LRC method.
    • The regression analysis showed a slope of 1.019 and an intercept of -72 mg/liter.
    • Methodological issues, such as NADH background degradation, were identified and corrected.

    Conclusions:

    • The enzymatic triglyceride method is a viable and accurate alternative to the LRC method for population studies.
    • The observed correlation and corrected methodological issues support its use in long-term research.
    • This enzymatic approach offers a reliable tool for triglyceride quantification in large cohorts.