The anxiety index was significantly correlated with ORX-A expressions in the PVN (r = −51, p < 0.056) and LH (r = −0.48, p < 0.05) and ORX-B expressions in the PVN (r = −0.57, p < 0.05) and LH (r = −0.54, p < 0.05). This evidence concerns the gene PLOD1 and Anxiety.