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[Pathophysiologic aspects of hyperlipoproteinemias]
1Oddĕlení klinické biochemie FN U sv. Anny, Brno.
Insights
High LDL-cholesterol and low HDL-cholesterol are key risks for ischemic heart disease (IHD). Other lipid factors like IDL, VLDL, and lipoprotein(a) also increase IHD risk, alongside non-lipid factors.
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.
Abstract:
Elevated LDL-cholesterol levels and reduced HDL-cholesterol levels are independent risk factors for the development of ischaemic heart disease. Atherosclerosis is promoted also by some particles rich in triacylglycerols, in particular intermediate density lipoproteins (IDL), partly also very low density lipoproteins (VLDL). The risk of IHD is enhanced also by subfractions of LDLIII and protracted postprandial lipaemia, characterized by an increased concentration of remnants of chylomicrons. An independent risk factor is also an increased concentration of lipoprotein(a). When evaluating the cardiovascular risk of an actual patient it is always necessary to consider in addition to blood lipid levels also other non-lipid risk factors.