A few other molecules were investigated as potential kidney biomarkers of CKD in children: clusterin, osteopontin, N-Acetyl-β-d-amino Glycosidase (NAG), symmetric and asymmetric dimethylarginine (SDMA, ADMA), or Trefoil Factor3 (TFF3) and results of recent studies were presented in Table 1. Here, TFF3 is linked to chronic kidney disease.