IL6 and chronic kidney disease: The indicator of increased oxidative stress (8-OHdG), was positively correlated with pentosidine in most of the groups (PD, CKD stage 3–4 and CKD5-ND) and associations with biomarkers of inflammation was seen among CKD5-ND (IL-6 and hsCRP), HD (IL-6) and PD (IL-6) patients.