Figure 2. Depicted are reverse transcriptase-polymerase chain reaction products of the eight verified genes and glyceraldehydes 3-phosphate dehydrogenase (GAPDH) as a housekeeping gene. Bone morphogenetic protein 4 (BMP4; A), JAW1-related protein (MRVI1; B), and cofilin 1 (CFL1; C) were significantly increased, while actin, alpha 2 (ACTA2; D), gene rich cluster, and C 10 gene (GRCC10; E), tissue inhibitor of metalloproteinase 3 (TIMP 3; F), tissue inhibitor of metalloproteinase 1 (TIMP1; G), and somatostatin receptor 1 (SSTR1; H) were significantly decreased in keratoconus (colummn 2) compared with normal cornea (column 1).