They discovered that patients who developed AKI had greater urine and serum KIM-1 and NGAL levels than patients who did not, (AUC for prediction of AKI occurrence 0.607, 0.754, 0.768 and 0.658 respectively), while the predictive value for severe AKI (KDIGO grade ≥ 2) was lower (AUC was 0.581, 0.555, 0.727 and 0.652 respectively) and the AUC for prediction of mortality was 0.510, 0.568, 0.619 and 0.640 respectively. The gene discussed is LCN2; the disease is acute kidney injury.