When antischizophrenic drugs, e.g., olanzapine and lurasidone, are administered to drug-naive patients, NGF levels along with other neurotrophic factors, e.g., BDNF and NT-3, are increased, which supports the essential role of neurodegenerative disorders in schizophrenia etiopathogenesis (Jena et al. 2019). This evidence concerns the gene NGF and schizophrenia.