Moreover, soluble (s) IL-1 receptors (R)2 (sIL-1R2) levels were associated with CRP serum concentration, myocardial infarct size, changes in end-diastolic and end-systolic volumes of the left ventricle, and the decrease in the ejection fraction (EF) after 4 months following STEMI [68]. Here, CRP is linked to myocardial infarction.