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Cholesterol metabolism in cardiac sarcoidosis

Piia Simonen1, Jukka Lehtonen1, Helena Gylling2

  • 1University of Helsinki and Helsinki University Central Hospital, Heart and Lung Center, Division of Cardiology, P.O. BOX 340, FI-00029 HUS, Helsinki, Finland.

Atherosclerosis
|April 2, 2016
PubMed

Insights

Patients with cardiac sarcoidosis show increased cholesterol absorption, a potential risk factor for atherosclerosis. This heightened absorption correlates with markers of hemodynamic load, suggesting a link between cholesterol metabolism and inflammation.

Area of Science:

  • Cardiology
  • Metabolic Research
  • Immunology

Background:

  • Cardiac sarcoidosis (CS) involves myocardial inflammation.
  • Atherosclerosis is common in CS patients, but its risk factors are unclear.
  • Cholesterol metabolism in CS remains poorly understood.

Purpose of the Study:

  • To investigate cholesterol metabolism in patients with cardiac sarcoidosis.
  • To assess serum non-cholesterol sterols as biomarkers of cholesterol synthesis and absorption.
  • To explore correlations between cholesterol metabolism and hemodynamic load markers.

Main Methods:

  • Gas-liquid chromatography was used to analyze serum non-cholesterol sterols.
  • 39 patients with verified CS were compared to 124 age-adjusted controls.
  • Cholesterol synthesis and absorption markers were measured.

Main Results:

  • CS patients exhibited higher cholesterol absorption efficiency compared to controls.
  • CS patients showed lower cholesterol synthesis markers than controls.
  • Cholesterol absorption markers correlated with plasma prohormone brain natriuretic peptide (proBNP).

Conclusions:

  • The cholesterol metabolic profile in CS is characterized by high cholesterol absorption efficiency.
  • This suggests a potential atherogenic risk in CS patients.
  • The link between cholesterol absorption, inflammation, and hemodynamic load requires further investigation.
Abstract

Keywords:
AtherosclerosisCampesterolCholesterol absorptionCholesterol synthesisInflammationLathosterolMyocardial disease

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