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Diagnostic value of immune cholesterol as a marker for atherosclerosis

A N Orekhov1, O S Kalenich, V V Tertov

  • 1Institute of Experimental Cardiology, Cardiology Research Center, Moscow, Russia.

Journal of Cardiovascular Risk
|October 1, 1995
PubMed

Insights

A new test measuring immune cholesterol in patients effectively diagnoses atherosclerosis. This immune cholesterol marker shows higher accuracy than traditional tests for both coronary and extracoronary artery disease.

Area of Science:

  • Cardiovascular Medicine
  • Clinical Chemistry
  • Diagnostic Biomarkers

Background:

  • Atherosclerosis involves circulating immune complexes, including low-density lipoproteins (LDLs).
  • A novel method measures LDL content in immune complexes via immune cholesterol determination.
  • This study compares immune cholesterol to established markers for atherosclerosis diagnosis.

Purpose of the Study:

  • To evaluate immune cholesterol as a diagnostic marker for coronary and extracoronary atherosclerosis.
  • To compare the diagnostic accuracy of immune cholesterol with conventional lipid profiles and apolipoproteins.
  • To assess the utility of combining immune cholesterol with other parameters for improved diagnostic accuracy.

Main Methods:

  • Blood samples from 200 patients with documented atherosclerosis were analyzed.
  • Immune cholesterol and standard lipid parameters (total cholesterol, triglycerides, LDL-C, HDL-C, Lp(a), ApoB, ApoA-1) were measured.
  • Coronary atherosclerosis was assessed via angiography; extracoronary atherosclerosis via angiography and ultrasonography.

Main Results:

  • Immune cholesterol and ApoB/ApoA-1 ratio significantly correlated with coronary atherosclerosis severity.
  • Immune cholesterol achieved 78% diagnostic accuracy for coronary atherosclerosis, surpassing other markers.
  • Combining immune cholesterol, LDL cholesterol, and age improved accuracy to 81%.
  • Immune cholesterol demonstrated high sensitivity, specificity, and accuracy for extracoronary atherosclerosis.

Conclusions:

  • Immune cholesterol serves as a novel and effective biomarker for diagnosing advanced atherosclerosis.
  • The marker is valuable for both coronary and extracoronary vascular disease detection.
  • Immune cholesterol offers superior diagnostic performance compared to traditional laboratory parameters.
Abstract

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