Measurement of biochemical markers
After 15 minutes of semi-supine rest, blood samples were obtained from
an antecubital vein into tubes containing ethylenediaminetetraacetic
acid (EDTA) to prevent coagulation. Troponin I concentrations were
measured by chemiluminescent immunoassay using an Immulite 2500 (Siemens
Medical Solutions, Erlangen, Germany). KİM-1 and suPAR were measured by
enzyme-linked immunosorbent assay (Elabscience human ELISA kit, UK).