High-Density Lipoprotein and Low-Density Lipoprotein Subfractions in Patients with Chronic Kidney Disease

Magdalena Rysz-Gorzynska, Anna Gluba-Brzozka, Maciej Banach1

  • 1Department of Hypertension, WAM University Hospital in Lodz, Medical University of Lodz, Zeromskiego 113; 90-549 Lodz, Poland.

Insights

Chronic Kidney Disease (CKD) alters high-density lipoprotein (HDL) and low-density lipoprotein (LDL) subfractions, with larger HDL particles more common in CKD patients. This finding may help identify individuals with increased cardiovascular risk.

Area of Science:

  • Nephrology
  • Cardiology
  • Lipidology

Background:

  • Chronic Kidney Disease (CKD) is a significant independent risk factor for cardiovascular disease (CVD).
  • Atherosclerosis is a primary driver of high cardiovascular mortality across all stages of CKD.
  • Lipoprotein subfractions, specifically high-density lipoprotein (HDL) and low-density lipoprotein (LDL), are implicated in CVD prediction for CKD patients.

Purpose of the Study:

  • To investigate and compare the levels of HDL and LDL subfractions in patients across various stages of CKD.
  • To establish potential correlations between CKD progression and alterations in lipoprotein subfraction profiles.

Main Methods:

  • Inclusion of 115 CKD patients (stages 2-5, including dialysis) and 25 healthy controls.
  • Utilized the Lipoprint System (Quantimetrix®) for precise analysis of HDL and LDL subfractions.
  • Comparative analysis of subfraction distribution between CKD patient groups and the control cohort.

Main Results:

  • Significant differences observed in HDL subfractions: HDL1-HDL5 were elevated in CKD patients (p≤0.013), while HDL7-HDL10 were more prevalent in controls (p≤0.001).
  • LDL subfraction analysis revealed significant variations between CKD stage 5 patients and controls, particularly in IDL-B (p<0.05), IDL-A (p<0.05), and LDL2 (p<0.001).

Conclusions:

  • CKD significantly influences HDL and LDL subfraction profiles.
  • CKD patients exhibit a higher prevalence of large HDL subpopulations compared to small HDL subfractions found in healthy individuals.
  • Identifying elevated large HDL subfractions could aid in pinpointing CKD patients at heightened cardiovascular risk, warranting further large-scale validation studies.
Abstract

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