PMID- 17306505 OWN - NLM STAT- MEDLINE DCOM- 20070612 LR - 20240312 IS - 0920-9964 (Print) IS - 0920-9964 (Linking) VI - 91 IP - 1-3 DP - 2007 Mar TI - Brain derived neurotropic factor in first-episode psychosis. PG - 1-5 AB - There is much interest, derived from current neurochemical, genetic, and therapeutic research, in the role of brain neurotrophins in schizophrenia. Neurotrophins play key roles in neuronal development and differentiation (i.e., promoting dendritogenesis and synaptogenesis), and in orchestrating the neuronal response to stress/noxious stimuli. Additionally, neurotrophins are modulators across monominergic (dopamine and serotonin), gabaergic and cholinergic systems. These roles focus on important areas of the etiopathophysiology of schizophrenia. Clinical studies show reductions in brain-derived neurotrophic factor (BDNF) and nerve growth factor (NFG) in schizophrenic patients as compared to normal control subjects, as well as differences in patients receiving first-generation antipsychotics (FGAs) or second-generation antipsychotics (SGAs). We now report on BDNF levels in subjects with first-episode psychosis in comparison with normal healthy controls. Compared to normal controls (N=14; 290.5+/-38.81 pg/ml), first-episode psychotic patients showed significant reduction (N=15; 135+/-21.77 pg/ml; P=0.001; f=12.873) in plasma BDNF. Additionally, plasma BDNF levels showed a significant negative correlation (N=13' r=0.584, P=0.0362) only with positive symptom scores at base line and no significant correlations were found with any of the cognitive performance test battery or motor function test scores. Low BDNF levels at the onset of psychosis suggest that it may contribute to the pathogenesis of schizophrenia and/or perhaps could be a helpful neurobiological marker for possible early treatment intervention. FAU - Buckley, Peter F AU - Buckley PF AD - Department of Psychiatry and Health Behavior, School of Medicine, Medical College of Georgia, Augusta, GA 30912, USA. pbuckley@mail.mcg.edu FAU - Pillai, Anilkumar AU - Pillai A FAU - Evans, Denise AU - Evans D FAU - Stirewalt, Edna AU - Stirewalt E FAU - Mahadik, Sahebarao AU - Mahadik S LA - eng GR - R01 AT000147/AT/NCCIH NIH HHS/United States GR - AT000147/AT/NCCIH NIH HHS/United States GR - R01 AT000147-01/AT/NCCIH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20070215 PL - Netherlands TA - Schizophr Res JT - Schizophrenia research JID - 8804207 RN - 0 (Antibodies) RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Adult MH - Antibodies/immunology MH - Brain-Derived Neurotrophic Factor/*blood/immunology MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Humans MH - Male MH - Psychotic Disorders/*blood/immunology/*psychology MH - Schizophrenia/blood/immunology MH - Time Factors PMC - PMC1933504 MID - NIHMS20012 EDAT- 2007/02/20 09:00 MHDA- 2007/06/15 09:00 PMCR- 2008/03/01 CRDT- 2007/02/20 09:00 PHST- 2006/09/29 00:00 [received] PHST- 2006/12/21 00:00 [revised] PHST- 2006/12/27 00:00 [accepted] PHST- 2007/02/20 09:00 [pubmed] PHST- 2007/06/15 09:00 [medline] PHST- 2007/02/20 09:00 [entrez] PHST- 2008/03/01 00:00 [pmc-release] AID - S0920-9964(07)00035-7 [pii] AID - 10.1016/j.schres.2006.12.026 [doi] PST - ppublish SO - Schizophr Res. 2007 Mar;91(1-3):1-5. doi: 10.1016/j.schres.2006.12.026. Epub 2007 Feb 15.