“…Urine is one of the most amenable fluids in clinical proteomics, because it can be obtained noninvasively, allowing one to identify GKD-related markers [12,13,14,15,16,17,18,19,20,21,22]. Profiling methods are gaining popularity in the quest for new putative biomarkers for glomerular disorders [23,24,25,26,27,28,29,30,31]. …”