NPY and post-traumatic stress disorder: In the last decades, NPY has gained much attention as a potential anxiolytic, screened in different behavioral tests, such as the Montgomery’s maze, elevated plus maze, and Vogel conflict test (Heilig et al., 1989), having been proposed to both attenuate (Serova et al., 2013) and reverse (Serova et al., 2014) the behavioral alterations induced by a model of PTSD.