Abstract
Introduction Previous studies have shown that a higher serum interleukin- (IL-) 6 level is associated with a higher risk of acute kidney injury (AKI) development after major nontransplant surgery. Our study investigated the potential association of preoperative serum cytokine profiles with new AKI development in patients who underwent living donor liver transplantation (LDLT). Methods Serum levels of cytokines IL-2, IL-6, IL-10, IL-12, and IL-17, interferon-γ, and tumor necrosis factor- (TNF-) α were measured in 226 LDLT recipients preoperatively and analyzed retrospectively. Recipients with a preoperative functional impairment of the kidney were excluded. AKI was defined according to Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Results In a univariate regression model, IL-6, IL-17, and TNF-α levels showed an association with AKI development after LDLT. Multivariate analysis showed an independent association of the preoperative serum IL-6 level with AKI development after LDLT and a significant relationship between higher serum IL-6 levels and a greater likelihood of developing AKI. Serum IL-6 levels were higher in patients with stage 3 AKI than in patients who did not develop AKI. Conclusions Our results support the need for further investigations of IL-6 as a predictor of AKI development in patients undergoing LDLT.
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