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  11. Impact Of Linoleic Acid On Apolipoprotein B In Individuals Without Previous Diagnosis Of Cardiovascular Disease: A Mendelian Randomization Study

Impact of Linoleic Acid on Apolipoprotein B in Individuals Without Previous Diagnosis of Cardiovascular Disease: A Mendelian Randomization Study

Gregory S Nacarelli1, Tracy Fasolino1, Puya Yazdi2

  • 1Clemson School of Nursing, Clemson University, 605 Grove Rd., Room 471, Greenville SC 29605, United States.

Clinical Nutrition ESPEN
|June 14, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

This study reveals a causal link between linoleic acid and apolipoprotein B levels. Understanding this relationship is key for cardiovascular disease risk assessment.

Area of Science:

  • Cardiovascular Disease Research
  • Nutritional Epidemiology
  • Genetic Epidemiology

Background:

  • Apolipoprotein B (ApoB) is a critical causal marker for cardiovascular disease (CVD).
  • Investigating the impact of fatty acids, such as linoleic acid, on ApoB levels is crucial for understanding CVD risk.
  • Linoleic acid, an omega-6 polyunsaturated fatty acid, has shown potential effects on CVD outcomes.

Purpose of the Study:

  • To investigate the causal association between plasma linoleic acid concentrations and apolipoprotein B levels using Mendelian Randomization.
  • To identify and analyze potential confounders influencing the linoleic acid-ApoB relationship.

Main Methods:

  • Utilized UK Biobank data for genetic risk scores, linoleic acid, ApoB concentrations, and confounders.
  • Excluded participants with prior CVD or on cholesterol-lowering medication.
Keywords:
apolipoprotein Bcardiovascular diseaselinoleic acid

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  • Employed multivariable regression and two-stage least-squares Mendelian Randomization analysis.

    • Main Results:

    • Multivariable regression confirmed significant associations of ApoB with linoleic acid and various lifestyle/demographic factors.
    • Mendelian Randomization demonstrated a statistically significant causal effect of genetically predicted linoleic acid on ApoB concentration (b = 0.23; p < 0.001).
    • Robust statistical measures (F-statistic, Wald χ², R²) support the validity of the causal inference.

    Conclusions:

    • This research establishes a causal association between linoleic acid and apolipoprotein B concentrations.
    • Further research is warranted to explore this association and its confounding factors in CVD prevention.