PMID- 25568287 OWN - NLM STAT- MEDLINE DCOM- 20160205 LR - 20231111 IS - 1469-5111 (Electronic) IS - 1461-1457 (Print) IS - 1461-1457 (Linking) VI - 18 IP - 7 DP - 2015 Jan 7 TI - Regional differences in brain-derived neurotrophic factor levels and dendritic spine density confer resilience to inescapable stress. PG - pyu121 LID - pyu121 [pii] LID - 10.1093/ijnp/pyu121 [doi] AB - BACKGROUND: In the learned helplessness (LH) paradigm, approximately 35% of rats are resilient to inescapable stress. METHODS: The roles of brain-derived neurotrophic factor (BDNF) and dendritic spine density in the brain regions of LH (susceptible) and non-LH rats (resilient) were examined. Western blot analysis and Golgi staining were performed. RESULTS: BDNF levels in the medial prefrontal cortex, CA3, and dentate gyrus (DG) were significantly lower in the LH group than in the control and non-LH groups, whereas BDNF levels in the nucleus accumbens (NAc) in the LH group but not the non-LH group were significantly higher than those in the control group. Furthermore, spine density in the prelimbic cortex, CA3, and DG was significantly lower in the LH group than in the control and non-LH groups, although spine density in the NAc was significantly higher in the LH group than in the control and non-LH groups. CONCLUSIONS: The results suggest that regional differences in BDNF levels and spine density in rat brain may contribute to resilience to inescapable stress. CI - (c) The Author 2015. Published by Oxford University Press on behalf of CINP. FAU - Yang, Chun AU - Yang C AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan (Drs Yang, Shirayama, Zhang, Ren, and Hashimoto); Department of Psychiatry, Teikyo University Chiba Medical Center, Ichihara, Japan (Dr Shirayama). FAU - Shirayama, Yukihiko AU - Shirayama Y AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan (Drs Yang, Shirayama, Zhang, Ren, and Hashimoto); Department of Psychiatry, Teikyo University Chiba Medical Center, Ichihara, Japan (Dr Shirayama). FAU - Zhang, Ji-Chun AU - Zhang JC AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan (Drs Yang, Shirayama, Zhang, Ren, and Hashimoto); Department of Psychiatry, Teikyo University Chiba Medical Center, Ichihara, Japan (Dr Shirayama). FAU - Ren, Qian AU - Ren Q AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan (Drs Yang, Shirayama, Zhang, Ren, and Hashimoto); Department of Psychiatry, Teikyo University Chiba Medical Center, Ichihara, Japan (Dr Shirayama). FAU - Hashimoto, Kenji AU - Hashimoto K AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan (Drs Yang, Shirayama, Zhang, Ren, and Hashimoto); Department of Psychiatry, Teikyo University Chiba Medical Center, Ichihara, Japan (Dr Shirayama). hashimoto@faculty.chiba-u.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Retracted Publication DEP - 20150107 PL - England TA - Int J Neuropsychopharmacol JT - The international journal of neuropsychopharmacology JID - 9815893 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM EIN - Int J Neuropsychopharmacol. 2021 May 18;24(5):446-447. PMID: 33942086 RIN - Int J Neuropsychopharmacol. 2023 Sep 25;26(9):654. PMID: 37669778 MH - Animals MH - Behavior, Animal MH - Blotting, Western MH - Brain/*metabolism/pathology MH - Brain-Derived Neurotrophic Factor/*metabolism MH - CA3 Region, Hippocampal/metabolism MH - Dendritic Spines/*pathology MH - Dentate Gyrus/metabolism MH - *Helplessness, Learned MH - Male MH - Nucleus Accumbens/metabolism MH - Prefrontal Cortex/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Silver Staining/methods MH - Stress, Psychological/metabolism/pathology/*psychology PMC - PMC4540100 OTO - NOTNLM OT - BDNF OT - depression OT - learned helplessness OT - resilience OT - spine density EDAT- 2015/01/09 06:00 MHDA- 2016/02/06 06:00 PMCR- 2015/03/04 CRDT- 2015/01/09 06:00 PHST- 2014/11/07 00:00 [received] PHST- 2014/12/20 00:00 [accepted] PHST- 2015/01/09 06:00 [entrez] PHST- 2015/01/09 06:00 [pubmed] PHST- 2016/02/06 06:00 [medline] PHST- 2015/03/04 00:00 [pmc-release] AID - pyu121 [pii] AID - 10.1093/ijnp/pyu121 [doi] PST - epublish SO - Int J Neuropsychopharmacol. 2015 Jan 7;18(7):pyu121. doi: 10.1093/ijnp/pyu121.