FABP2 and major depressive disorder: Therefore, the aim of the present study was to test the hypotheses that in MDD-R-patients the Thr54-polymorphism in the FABP2-gene would be (I) more prevalent than in sex-and age-matched controls, (II) associated with observed (bimodally distributed) alterations in FA-metabolism, and (III) associated with CVD-risk factor waist circumference.