SDC1 and chronic kidney disease: Serum markers of glycocalyx damage were highest in the dialysis group (n = 33), followed by CKD patients (n = 32) and kidney transplant recipients (n = 30) compared to controls (n = 30): hyaluronan: 137 (16-1414), 79 (11–257), 57 (14–218) and 23 (8-116) ng/mL, respectively, p < 0.0001; syndecan-1: 81 (40–529), 46 (21–134), 39 (23–72), and 30 (12–138) ng/mL, respectively, p < 0.0001.