The aims of this study are
- To evaluate the natural history of plasma concentrations and renal and peritoneal clearances of small water-soluble uremic retention molecules (URM), 'middle molecules', and protein bound URM in incident peritoneal dialysis (PD) patients.
- To evaluate the natural history and determinants of the generation rate of URM originating from bacterial protein fermentation in PD patients.
- To evaluate the natural history of biochemical parameters of mineral metabolism in incident PD patients.