[Pathophysiologic aspects of hyperlipoproteinemias]

Area of Science:

• Cardiovascular Medicine
• Lipidology
• Atherosclerosis Research

Context:

• Ischemic heart disease (IHD) is a leading cause of mortality.
• Understanding the multifaceted lipid profiles contributing to IHD is crucial for effective prevention and treatment strategies.
• Current research highlights the complex interplay of various lipoprotein particles and their role in cardiovascular risk.

Purpose:

• To elucidate the independent contributions of specific lipoprotein subfractions and lipid parameters to the risk of developing ischemic heart disease.
• To emphasize the importance of considering a comprehensive lipid profile, including triglycerides-rich lipoproteins and lipoprotein(a), in cardiovascular risk assessment.
• To highlight the necessity of integrating non-lipid risk factors with lipid levels for a holistic patient evaluation.

Summary:

• Elevated low-density lipoprotein (LDL) cholesterol and reduced high-density lipoprotein (HDL) cholesterol are established independent risk factors for IHD.
• Atherogenesis is further promoted by triacylglycerol-rich lipoproteins, including intermediate-density lipoproteins (IDL) and very-low-density lipoproteins (VLDL).
• Increased concentrations of LDL subfractions (LDLIII), protracted postprandial lipemia (chylomicron remnants), and lipoprotein(a) independently elevate IHD risk.

Impact:

• Provides a detailed overview of lipid-related risk factors for ischemic heart disease.
• Informs clinical practice by underscoring the need for comprehensive cardiovascular risk assessment beyond basic lipid panels.
• Contributes to the ongoing research into the pathophysiology of atherosclerosis and the development of targeted therapies.