The expression of ELOVL4 substantially decreased by 76.2 ± 9.6% in FAg-induced dermatitis compared with that in control mouse skin, and the expression of the other ELOVL isozymes except for ELOVL3 also significantly decreased, with the highest inhibition in ELOVL6 (Figure 3(a) and Supplemental Table 4a). Here, ELOVL4 is linked to dermatitis.