Although dGABAAs in dentate GCs (Maguire and Mody, 2008; Maguire et al., 2009) and in hippocampal parvalbumin-positive (PV+) interneurons (Ferando and Mody, 2013) have been implicated in postpartum depression, the brain regions regulating postpartum depression have not been identified directly in conditional δ KO mice. The gene discussed is PVALB; the disease is postpartum depression.