FABP5 and polycystic ovary syndrome: Furthermore, FABP5 expression in the ovarian tissues of PCOS mice was significantly greater than that in the ovarian tissues of normal mice (Fig. 2C, D, E, F) (C: Normal vs. PCOS = 1.104 ± 0.500 vs. 2.351 ± 0.376, P < 0.01; E: Normal vs. PCOS = 0.530 ± 0.148 vs. 1.007 ± 0.062, P < 0.05).