FABP4 and colorectal neoplasm: Western blot analysis showed that the protein expression levels of FABP4 and FABP6 in colorectal tumor tissues were higher than those in adjacent tissues (FABP4: 1.103 ± 0.529 vs 0.746 ± 0.296, P < 0.001; FABP6: 0.988 ± 0.225 vs 0.521 ± 0.156, P = 0.002) (Fig. 3).