OPCML and schizophrenia: The genome-wide associate studies have linked the single nucleotide polymorphism of OPCML gene with schizophrenia (Athanasiu et al., 2010; Ji et al., 2010; Schol-Gelok et al., 2010; Zhang et al., 2019) and later studies using Opcml-deficient mice support this association (Zhang et al., 2019; Sun et al., 2024).