FABP4 and obesity due to melanocortin 4 receptor deficiency: Nevertheless, separate group analyses showed a direct association between TG and SAT-FABP4 expression in the whole population [Ob and non-Ob, F(1, 125) = 8.59, p = 0.004, R2 = 0.066] and in subjects with obesity [F(1, 104) = 7.18, p = 0.008, R2 = 0.063], but not in the group of non-Ob subjects alone [F(1, 21) = 1.4, p = 0.258, R2 = 0.097, Figure 3B].