FABP4 and gestational diabetes: FABP4 and adiponectin levels were negatively correlated in controls (r = −0.61, p = 0.0009), while I-FABP correlated positively with adiponectin (r = 0.58, p = 0.04) and resistin (r = 0.67, p = 0.04) levels in the GDM group.