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Updated: Feb 3, 2026
07:48
Myocardial Infarction in Neonatal Mice, A Model of Cardiac Regeneration
Published on: May 24, 2016
19.8K
Plasma interleukin 6 levels are associated with cardiac function after ST-elevation myocardial infarction
Hilde E Groot1, Lawien Al Ali1, Iwan C C van der Horst2
1Department of Cardiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands.
Summary
Elevated interleukin-6 (IL-6) and a lower soluble IL-6 receptor (sIL-6R)/IL-6 ratio early after ST-elevation myocardial infarction (STEMI) predict larger infarct size and reduced cardiac function. These biomarkers indicate poorer outcomes at four months post-STEMI.
Area of Science:
- Cardiovascular Medicine
- Immunology
- Biomarker Research
Background:
- Myocardial infarction (MI) initiates an inflammatory response crucial for cardiac repair.
- The interleukin-6 (IL-6) signaling cascade plays a role in this inflammatory process.
- Understanding IL-6's role can inform strategies for managing MI outcomes.
Purpose of the Study:
- To investigate the association between the IL-6 cascade and infarct size.
- To examine the relationship between the IL-6 cascade and cardiac function post-STEMI.
- To identify early biomarkers for predicting long-term cardiac outcomes after STEMI.
Main Methods:
- Measured IL-6, soluble IL-6 receptor (sIL-6R), and soluble glycoprotein 130 (sgp130) in 369 STEMI patients at multiple time points.
- Calculated the sIL-6R/IL-6 ratio.
- Assessed infarct size and left ventricular ejection fraction (LVEF) using cardiac MRI at 4 months.
- Determined diastolic function via echocardiography.
Main Results:
- IL-6 levels peaked 24 hours post-STEMI and returned below baseline by 2 weeks.
- Early IL-6 levels and the sIL-6R/IL-6 ratio were independently associated with infarct size.
- Higher IL-6 levels at 24 hours correlated with lower LVEF.
- sIL-6R and sgp130 levels showed distinct temporal patterns post-STEMI.
Conclusions:
- Elevated IL-6 and a decreased sIL-6R/IL-6 ratio in the early phase of STEMI are linked to larger infarct size.
- These early biomarker profiles predict diminished cardiac function at 4 months post-STEMI.
- The IL-6 cascade serves as a potential prognostic indicator for STEMI patients.
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