A case-control study showed that the OXTR SNPs rs53576 (A > G) and rs237885 (T > G) were significantly associated with a diagnosis indicator of schizophrenia and that OXTR SNPs rs53576 and rs237902 were significantly correlated with general psychopathology and negative symptom scores in schizophrenic patients, respectively (Montag et al., 2013). This evidence concerns the gene OXTR and schizophrenia.