FGFR1 and Hyperglycemia: The decrease in FGFR1 and FGFR2 expression in podocytes that was caused by hyperglycemia was also confirmed at the protein level, which decreased by 32% and 15%, respectively, compared with SG conditions (normalized to actin, HG vs. SG: FGFR1: 0.28 ± 0.03 vs. 0.41 ± 0.02, respectively; FGFR2: 0.29 ± 0.01 vs. 0.34 ± 0.02, respectively; Figure 4B).