D/Pcr, Kt/V, Ccr and CA125 are closely related to peritoneal transport function, and Kt/V, D/Pcr and Ccr are relevant indicators to measure the adequacy of peritoneal dialysis, which can indirectly reflect the peritoneal transport function of patients undergoing peritoneal dialysis.19 CA125 is a glycoprotein antigen, which can reflect peritoneal transformation and the number of mesothelial cells, and is often used to measure the peritoneal transport function of patients with DN undergoing peritoneal dialysis.20 This evidence concerns the gene ART4 and liver dysplastic nodule.