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Molecular lipids identify cardiovascular risk and are efficiently lowered by simvastatin and PCSK9 deficiency

Kirill Tarasov1, Kim Ekroos, Matti Suoniemi

  • 1Zora Biosciences (K.T., K.E., M.S., D.K., T.S., R.H., R.L.), Biologinkuja 1, FI-02150 Espoo, Finland; University Hospital (R.L.), FI-33521 Tampere, Finland; Department of Clinical Pharmacology (K.T., R.L.), University of Helsinki, FI-00290 Helsinki, Finland; Center for Endocrinology, Diabetes, and Preventive Medicine (I.G.-B.), University of Cologne, D-50937 Cologne, Germany; Evangelical Geriatrics Center Berlin (H.K.B.), Charité University Medicine Berlin, D-13347, Berlin, Germany; Medical Clinic V, (M.E.K., W.M.), Medical Faculty Mannheim, University of Heidelberg, 69115 Heidelberg; Synlab Academy (W.M.), Synlab Services GmbH, D-68165 Mannheim, Germany; and Clinical Institute of Medical and Clinical Laboratory Diagnostics (W.M.), Medical University of Graz, 8036 Graz, Austria.

The Journal of Clinical Endocrinology and Metabolism
|November 19, 2013
PubMed

Insights

Specific ceramides link to fatal coronary artery disease (CAD) outcomes. Lipid-lowering drug mechanisms and PCSK9 deficiency impact these ceramides, offering new prevention strategies for CAD patients.

Area of Science:

  • Cardiovascular Research
  • Lipidomics
  • Molecular Medicine

Background:

  • Coronary artery disease (CAD) is a major global health concern, with traditional risk factors explaining only part of the overall cardiovascular risk.
  • Improved early diagnostic strategies and targeted preventive measures are crucial for managing CAD.
  • Identifying novel molecular markers associated with CAD mortality is essential for advancing patient care.

Purpose of the Study:

  • To identify specific molecular lipids, particularly ceramides, associated with fatal outcomes in patients with coronary artery disease (CAD).
  • To evaluate the impact of different lipid-lowering medications (simvastatin, ezetimibe) on these identified risk lipids.
  • To investigate the association between PCSK9 gene variations and ceramide levels in CAD patients.

Main Methods:

  • Serum samples from 445 CAD patients in the Ludwigshafen Risk and Cardiovascular Health (LURIC) study were analyzed.
  • A separate study analyzed samples from patients treated with simvastatin, ezetimibe, or combination therapy.
  • PCSK9 loss-of-function mutation carriers were compared with major allele carriers within the LURIC cohort.

Main Results:

  • Specific ceramide species were significantly associated with fatal CAD outcomes.
  • Simvastatin treatment reduced plasma ceramides by approximately 25%, while ezetimibe showed no significant effect.
  • PCSK9 deficiency correlated with lower LDL cholesterol and a significant 20% reduction in CAD outcome risk-related ceramides.

Conclusions:

  • Distinct ceramides are significantly associated with CAD outcomes, independent of traditional risk factors.
  • The mechanism of lipid-lowering therapy plays a critical role in managing ceramide levels and CAD risk.
  • These findings highlight ceramides as potential therapeutic targets for improving CAD patient outcomes.
Abstract

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