Is IL-33 useful to detect early stage of renal failure?

Abstract IL-33 is a proinflammatory cytokine that is a member of IL-1 family. Previously the effect of IL-33 on kidney injury is showed in animal models. In this study, we searched if we can use IL-33 to show the early stage of kidney injury in diabetic patients. Three groups are identified: 26 patients in Group 1: Healthy group, that do not have any chronic diseases and not taking any medication; 42 patients in Group 2: DM (diabetes mellitus) group without any known kidney disease and with normal kidney functions; 32 patients in Group 3: DM + MA (microalbuminuria) group that are assumed to have nephropathy. IL-33 level of DM patient group is greater than healthy group; also IL-33 level of DM + MA patient group is greater than healthy group; but there is not any difference between DM and DM + MA group. The increase in IL-33 levels in diabetic nephropathy is not associated with kidney injury but the increase could be resulting because of diabetes. So IL-33 cannot be used in early recognition of diabetic nephropathy.

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