PCDH10 and major depressive disorder: In addition to ASD, several recent studies have implicated human Pcdh10 in other neurological conditions, such as familial amyloidotic polyneuropathy (FAP), obsessive–compulsive disorder (OCD), major depression (MD) and schizophrenia (Fromer et al. 2014; Goncalves et al. 2016; Qin et al. 2016; Bodea et al. 2017; Tang et al. 2019).