HDL cholesterol: physiology, pathophysiology, and management

Jeffrey J Link1, Anand Rohatgi, James A de Lemos

  • 1Department of Internal Medicine, Parkland Memorial Hospital affiliated with the University of Texas, Southwestern Medical Center, Dallas, Texas 75390-9047, USA.

Insights

High-density lipoprotein cholesterol (HDL) is a key factor in coronary heart disease (CHD) risk. While HDL is a promising therapeutic target, effective treatments for low HDL remain limited, with emerging therapies showing potential.

Area of Science:

  • Cardiovascular Medicine
  • Lipid Metabolism
  • Pharmacology

Background:

  • Epidemiological studies consistently identify high-density lipoprotein cholesterol (HDL) as an independent risk factor for coronary heart disease (CHD).
  • HDL is recognized as a significant emerging therapeutic target for cardiovascular risk reduction, potentially comparable to statins.
  • The anti-atherogenic effects of HDL are complex, influenced by metabolism, kinetics, subclasses, and genetic factors, which standard plasma measurements may not fully represent.

Purpose of the Study:

  • To review the role of HDL cholesterol in cardiovascular disease.
  • To explore HDL as a therapeutic target for coronary heart disease.
  • To discuss current limitations and future directions in pharmacologic therapy for low HDL levels.

Main Methods:

  • Literature review of epidemiological studies on HDL and CHD.
  • Analysis of HDL metabolism, kinetics, and functionality.
  • Evaluation of current and emerging pharmacologic therapies for HDL modulation.

Main Results:

  • Low HDL levels are a significant risk factor for CHD.
  • Existing therapies offer modest improvements in serum HDL levels.
  • Emerging therapeutic strategies hold promise for more substantial impacts on HDL and CHD risk.

Conclusions:

  • HDL cholesterol remains a critical target for cardiovascular disease prevention.
  • Further research and clinical evidence are needed to establish formal HDL treatment guidelines.
  • Novel pharmacologic interventions are anticipated to play a greater role in managing HDL levels and reducing CHD risk.

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