Furthermore, umbilical NGAL concentrations in neonates with HLHS and diagnosed AKI were significantly higher in comparison to other newborns with HLHS without AKI (171 ng/dL, 95% CI: 66.1–187 ng/dL versus 29 ng/dL, 95% CI: 23–42 ng/dL; P < 0.001)—Figure 1. The gene discussed is LCN2; the disease is hypoplastic left heart syndrome.