In our work other determinants of FT3 levels were those related to the severity of DKA and to the severity of dehydration causing in turn RTD, AKI and in the most severe cases ATN such as triglycerides and creatinine levels among serum factors, and NGAL and UCa/Cr levels among urinary ones. The gene discussed is LCN2; the disease is renal tubular dysgenesis of genetic origin.