PMID- 25462893 OWN - NLM STAT- MEDLINE DCOM- 20150821 LR - 20220310 IS - 1873-3360 (Electronic) IS - 0306-4530 (Linking) VI - 51 DP - 2015 Jan TI - The interplay between BDNF and oxidative stress in chronic schizophrenia. PG - 201-8 LID - S0306-4530(14)00377-1 [pii] LID - 10.1016/j.psyneuen.2014.09.029 [doi] AB - Neurodegenerative processes may be involved in the pathogenesis of schizophrenia. Brain-derived neurotrophic factor (BDNF), the most widely distributed neurotrophin and oxidative stress (OS) may be critical for several pathological manifestations of neurodegenerative disorders. Accumulating evidence suggests that both BDNF and OS may be involved in the pathophysiology of schizophrenia. However, the possible interaction between BDNF and OS has been under-investigated. Serum BDNF, plasma malondialdehyde (MDA) levels and superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) activities were analyzed using established procedures in 164 chronic medicated schizophrenia and 50 healthy controls. Schizophrenic symptoms were assessed by the Positive and Negative Syndrome Scale (PANSS) with cognitive and depressive factors derived from the five factor model of the PANSS. Compared to the control group, the patients exhibited a significant decrease in BDNF levels, in the activities of SOD and GSH-Px but a significant increase in MDA levels. In patients, but not in controls, we observed a significant negative correlation between BDNF and SOD. Furthermore, the interaction between BDNF and CAT was associated with the PANSS cognitive factor, and the interaction between BDNF and GSH-Px with the PANSS depressive factor. Both decreased BDNF levels and OS may be implicated in the pathophysiology of chronic schizophrenia. Their inverse association only in the schizophrenia group may reflect a pathological mechanism involving an interaction of oxidative damage and neurotrophin dysfunction. Moreover, OS may interact with the BDNF system to influence the clinical symptoms and cognitive impairment in schizophrenia, which is line with the neurodevelopmental hypothesis of schizophrenia. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Zhang, Xiang Yang AU - Zhang XY AD - Beijing HuiLongGuan Hospital, Peking University, Beijing, China; Department of Psychiatry and Behavioral Sciences, Harris County Psychiatric Center, The University of Texas Health Science Center at Houston, Houston, TX, USA. Electronic address: xiang.y.zhang@uth.tmc.edu. FAU - Chen, Da-Chun AU - Chen DC AD - Beijing HuiLongGuan Hospital, Peking University, Beijing, China. FAU - Tan, Yun-Long AU - Tan YL AD - Beijing HuiLongGuan Hospital, Peking University, Beijing, China. FAU - Tan, Shu-Ping AU - Tan SP AD - Beijing HuiLongGuan Hospital, Peking University, Beijing, China. FAU - Wang, Zhi-Ren AU - Wang ZR AD - Beijing HuiLongGuan Hospital, Peking University, Beijing, China. FAU - Yang, Fu-De AU - Yang FD AD - Beijing HuiLongGuan Hospital, Peking University, Beijing, China. FAU - Okusaga, Olaoluwa O AU - Okusaga OO AD - Department of Psychiatry and Behavioral Sciences, Harris County Psychiatric Center, The University of Texas Health Science Center at Houston, Houston, TX, USA. FAU - Zunta-Soares, Giovana B AU - Zunta-Soares GB AD - Department of Psychiatry and Behavioral Sciences, Harris County Psychiatric Center, The University of Texas Health Science Center at Houston, Houston, TX, USA. FAU - Soares, Jair C AU - Soares JC AD - Department of Psychiatry and Behavioral Sciences, Harris County Psychiatric Center, The University of Texas Health Science Center at Houston, Houston, TX, USA. Electronic address: jair.c.soares@uth.tmc.edu. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141007 PL - England TA - Psychoneuroendocrinology JT - Psychoneuroendocrinology JID - 7612148 RN - 0 (Antipsychotic Agents) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 4Y8F71G49Q (Malondialdehyde) RN - EC 1.11.1.6 (Catalase) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM CIN - Psychoneuroendocrinology. 2015 May;55:144-5. PMID: 25765755 MH - Adult MH - Aged MH - Antipsychotic Agents/therapeutic use MH - Brain-Derived Neurotrophic Factor/*blood MH - Catalase/blood MH - Female MH - Glutathione Peroxidase/blood MH - Humans MH - Male MH - Malondialdehyde/blood MH - Middle Aged MH - Oxidative Stress/*physiology MH - Psychiatric Status Rating Scales MH - Schizophrenia/*blood/drug therapy MH - Schizophrenic Psychology MH - Superoxide Dismutase/blood OTO - NOTNLM OT - Brain-derived neurotrophic factor OT - Cognition OT - Interaction OT - Oxidative stress OT - Psychopathology OT - Schizophrenia EDAT- 2014/12/03 06:00 MHDA- 2015/08/22 06:00 CRDT- 2014/12/03 06:00 PHST- 2014/07/10 00:00 [received] PHST- 2014/09/06 00:00 [revised] PHST- 2014/09/29 00:00 [accepted] PHST- 2014/12/03 06:00 [entrez] PHST- 2014/12/03 06:00 [pubmed] PHST- 2015/08/22 06:00 [medline] AID - S0306-4530(14)00377-1 [pii] AID - 10.1016/j.psyneuen.2014.09.029 [doi] PST - ppublish SO - Psychoneuroendocrinology. 2015 Jan;51:201-8. doi: 10.1016/j.psyneuen.2014.09.029. Epub 2014 Oct 7.