Brain-Derivedneurotrophic Factor Levels And Psychopathology Scores In Drug-Naive First-Episode Psychosis

ASIA-PACIFIC PSYCHIATRY(2020)

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Abstract
Introduction Brain-derived neurotrophic factor (BDNF) is involved in the regulation of many neuronal processes, including neurogenesis. Therefore, it is thought to be closely associated with many psychopathologies with a neurodevelopmental basis, for example, schizophrenia. Methods The patients admitted to the Psychiatry Department of the Faculty of Medicine with a diagnosis of non-affective drug-naive first-episode psychosis (FEP) were included in the study. The relationship between laboratory and clinical findings and psychometric data (Positive and Negative Syndrome Scale) was examined. Results The study population consisted of 34 FEP and 34 healthy control (HC) volunteers. Mean BNDF levels of FEP and HC groups were 14.95 +/- 6.13 and 17.89 +/- 4.84 pg/ml, respectively. The difference between the groups was statistically significant (t = 2.197;p= .032). There was a negative correlation between mean BDNF levels and PANSS general psychopathology subscale scores (r= .358;p= .038), and total PANSS scores (r= .356;p= .039). Discussion There is a consensus on low serum BDNF levels both in FEP and in schizophrenia. However, it is still not clear which clinical findings are associated with lower serum BDNF levels. The relationship between BDNF levels and psychopathologies in schizophrenia has to be investigated.
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Key words
BDNF, drug-naive, first-episode psychosis, neurogenesis, schizophrenia
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