FGF14 and schizophrenia: More recently, animal model studies and genome‐wide association studies suggested that FGF14 may be a risk factor for various neuropsychiatric diseases including depression addiction and schizophrenia, as well as neurodegenerative diseases,2, 3FGF14 encodes fibroblast growth factor 14 highly expressed in the brain and especially in Purkinje cells, where it interacts with voltage‐gated Na+ channels to regulate neuronal excitability.