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Expression of scavenger receptor CD36 in chronic renal failure patients

Michal Chmielewski1, Ewa Bryl, Lukasz Marzec

  • 1Department of Nephrology, Transplantology and Internal Medicine, Medical University of Gdansk, Gdansk, Poland. chmiel@amg.gda.pl

Artificial Organs
|July 29, 2005
PubMed

Insights

Patients with chronic renal failure (CRF) show higher expression of the scavenger receptor CD36 on monocytes, a potential risk factor for atherosclerosis. Statin therapy was associated with reduced CD36 expression in these patients.

Area of Science:

  • Nephrology
  • Cardiology
  • Immunology

Background:

  • Chronic renal failure (CRF) patients face elevated atherosclerosis risk.
  • Foam cell formation is a key step in atherosclerosis pathogenesis.
  • Scavenger receptor CD36 mediates oxidized low-density lipoprotein uptake, crucial for foam cell formation.

Purpose of the Study:

  • To investigate CD36 scavenger receptor expression on blood monocytes in CRF patients.
  • To assess the relationship between CD36 expression and renal replacement therapy modalities.
  • To evaluate the impact of statin treatment on CD36 expression in CRF.

Main Methods:

  • Flow cytometry was used to measure CD36 expression on monocytes from hemodialysis (HD), peritoneal dialysis (PD), predialysis, and control groups.
  • Lipid peroxidation markers, malondialdehyde (MDA) and 4-hydroxyalkenals (HAE), were quantified.
  • The effect of statin therapy on CD36 expression was analyzed.

Main Results:

  • Monocyte CD36 expression was significantly higher in HD and PD patients compared to controls.
  • Predialysis patients did not show significantly higher CD36 expression than controls.
  • Elevated MDA and HAE levels were found in all CRF subgroups; statin users had lower CD36 expression.

Conclusions:

  • This study is the first to report increased CD36 scavenger receptor expression in CRF patients.
  • Elevated CD36 expression may contribute to accelerated atherogenesis in CRF.
  • Statin therapy may mitigate CD36-related atherosclerosis risk in CRF patients.
Abstract

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