At day 2 after OLT, serum MIF concentrations did not differ from baseline values in the no/mild AKI group (98 ng/ml, IQR 54–189, P = 0.76 vs. baseline) or in the severe AKI group (169 ng/ml, IQR 109–232, P = 0.28 vs. baseline). Here, MIF is linked to acute kidney injury.