Association of Glial Cell-Line Derived Neurotrophic Factor and Nerve Growth Factor with Duration of Untreated Psychosis and Clinical Symptoms in Drug-Naive Schizophrenia.

GDNF and NGF levels seem to be indicators of schizophrenia and its progress; nevertheless, we still do not have sufficient information about these neurotrophic factors. The results of our study indicate that the neurodevelopmental changes occurring at the early stages of the illness prominently affect the progress of disease, highlighting the importance of treatment in the early stages of disease.