(A and B) Plasma G-3-P (A) and creatinine (B) levels before (Preop) and immediately after (Postop) cardiac surgery for patients with AKI and control subjects (n = 13 for each group). Data represent the mean ± SEM. *P < 0.05, by 2-way ANOVA followed by Tukey’s multiple comparisons test. (C) Scatter plots of immediate postoperative plasma G-3-P and iFGF23 levels 24 hours after surgery in patients with AKI and control subjects. (D–G) Scatter plots of immediate postoperative PTH (D), phosphate (E), 1,25(OH)2D (F), and creatinine (G) levels and iFGF23 levels 24 hours after surgery for patients with AKI.