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LDL size: does it matter?

K Berneis1, M Rizzo

  • 1University Hospital Bruderholz, Department of Internal Medicine, Switzerland. kaspar@berneis.ch

Swiss Medical Weekly
|January 7, 2005
PubMed
Summary
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The atherogenic lipoprotein phenotype, common in metabolic syndrome, involves higher triglycerides and smaller, denser LDL cholesterol. This increases cardiovascular event risk and is an emerging risk factor.

Area of Science:

  • Cardiovascular Science
  • Lipid Metabolism
  • Metabolic Disorders

Background:

  • The atherogenic lipoprotein phenotype is a common condition characterized by specific lipid profile changes.
  • It is associated with metabolic syndrome and elevated cardiovascular disease (CVD) risk.
  • This phenotype is partially inheritable and affects approximately 30% of the population.

Purpose of the Study:

  • To define the characteristics of the atherogenic lipoprotein phenotype.
  • To highlight its association with metabolic syndrome and CVD risk.
  • To emphasize the recognition of small dense LDL as a cardiovascular risk factor.

Main Methods:

  • Lipid profile analysis including triglycerides, HDL cholesterol, and LDL particle size.
  • Assessment of phenotype prevalence within the general population.

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  • Review of established cardiovascular risk factors and guidelines.

    • Main Results:

    • The phenotype involves moderate hypertriglyceridemia, decreased high-density lipoprotein cholesterol, and increased small, dense low-density lipoprotein (LDL) particles.
    • Prevalence is approximately 30%.
    • Small dense LDL predominance is recognized as an emerging cardiovascular risk factor by the Adult Treatment Panel (ATP) III.

    Conclusions:

    • The atherogenic lipoprotein phenotype is a significant, partially heritable condition linked to metabolic syndrome.
    • It represents a key contributor to cardiovascular risk.
    • The identification of small dense LDL as a risk factor aids in cardiovascular event prevention strategies.