High-Density Lipoprotein Subfraction Analysis by High-Density Lipoprotein Cholesterol Levels and Gender in Healthy...

Area of Science:

• Cardiovascular Science
• Biochemistry
• Lipid Metabolism

Background:

• Pharmacological attempts to increase high-density lipoprotein cholesterol (HDL-C) have not reduced cardiovascular risk.
• Focus has shifted from HDL quantity to HDL quality and function.
• HDL subfraction analysis is a practical alternative to functional assays for assessing HDL heterogeneity.

Purpose of the Study:

• To establish gender-specific reference distributions for HDL subfractions.
• To investigate HDL subfraction profiles across a wide range of HDL-C levels.
• To compare HDL subfractions in dyslipidemia patients versus healthy controls.

Main Methods:

• 172 healthy adults were classified into gender-specific HDL-C percentile groups.
• HDL subfractions were analyzed using polyacrylamide gel electrophoresis.
• HDL profiles of dyslipidemia patients were compared to healthy controls with similar HDL-C levels.

Main Results:

• In men, higher HDL-C correlated with increased small HDL subfractions.
• In women, higher HDL-C correlated with increased large and decreased intermediate HDL subfractions.
• Dyslipidemia patients showed lower large and higher intermediate HDL subfractions than controls.

Conclusions:

• Gender-specific reference distributions for HDL subfractions were established.
• HDL subfraction analysis provides insights into HDL quality beyond HDL-C levels.
• This method may enhance individualized cardiovascular risk assessment and HDL function research.