NTRK3 and major depressive disorder: TrkC is genetically linked with several different types of neuropsychiatric disorders including panic disorder, OCD, major depression and schizophrenia (Alonso et al, 2008; Armengol et al, 2002; Dierssen et al, 2006; Gratacos et al, 2001; Muinos-Gimeno et al, 2009; Otnaess et al, 2009; Takahashi and Craig, 2013; Um and Ko, 2013; Verma et al, 2008).