In children, uNGAL’s ability to predict AKI is enhanced when it is used in combination with other biomarkers for renal injury or function such as interleukin-18 (IL-18), Kidney Injury Molecule-1 (KIM-1), and tissue inhibitor of metalloproteinases 1 (TIMP-1) [29,31]. This evidence concerns the gene IL18 and acute kidney injury.