When comparing protein expression for Glut1 and PKM2, we demonstrated similar findings of elevated levels in keloid tissue compared with normal skin (5.84 vs. 0.31, P < 0.05 for Glut1; 2.92 vs. 0.63, P < 0.01 for PKM2) (Figure 3, C and D). This evidence concerns the gene SLC2A1 and keloid.