PMID- 25611431 OWN - NLM STAT- MEDLINE DCOM- 20160115 LR - 20200225 IS - 1755-5949 (Electronic) IS - 1755-5930 (Print) IS - 1755-5930 (Linking) VI - 21 IP - 5 DP - 2015 May TI - Surgical stress induces brain-derived neurotrophic factor reduction and postoperative cognitive dysfunction via glucocorticoid receptor phosphorylation in aged mice. PG - 398-409 LID - 10.1111/cns.12368 [doi] AB - AIMS: This study explored whether surgical stress-induced glucocorticoid receptor (GR) phosphorylation is related to postoperative cognitive dysfunction (POCD) in aged individuals. Inhibition of GR activation could be an effective treatment for POCD. METHODS: A laparotomy was given to C57/BL6 mice in POCD group both 20 and 6 months old. Animals in control group were treated in identical manners except for laparotomy. Cognitive function was evaluated by Morris water maze and elevated plus maze. Western blot and Elisa assay were used to detect related molecules. Mifepristone and roscovitine were treated as inhibitions of GR phosphorylation. RESULTS: The cognitive function was impaired, and brain-derived neurotrophic factor (BDNF) was found reduced in aged POCD group. GR translocation into nucleus and elevated GR phosphorylation were found in prefrontal cortex of aged POCD mice. Cyclin-dependent Kinase 5 (CDK5), kinase for GR phosphorylation also elevated in aged POCD mice. With GR antagonist and CDK5 inhibitor, reduction of BDNF and cognitive dysfunction in aged mice were both rescued. CONCLUSION: These results presented a mechanism that surgical stress-induced GR phosphorylation contributes to POCD in aged individuals. Inhibition of GR activation and phosphorylation might be a potential treatment target of POCD. CI - (c) 2015 John Wiley & Sons Ltd. FAU - Tian, Xiao-Sheng AU - Tian XS AD - Neuroscience Research Institute & Department of Neurobiology; Health Science Center, Peking University, Beijing, China; Department of Anesthesiology, Peking University Third Hospital, Beijing, China. FAU - Tong, Ya-Wei AU - Tong YW FAU - Li, Zheng-Qian AU - Li ZQ FAU - Li, Lun-Xu AU - Li LX FAU - Zhang, Tao AU - Zhang T FAU - Ren, Tian-Yun AU - Ren TY FAU - Zhou, Ting AU - Zhou T FAU - Wang, He-Cheng AU - Wang HC FAU - Zhan, Rui AU - Zhan R FAU - Sun, Yang AU - Sun Y FAU - Yan, Zhao AU - Yan Z FAU - Wang, Qiu-Dian AU - Wang QD FAU - Fan, Dong-Sheng AU - Fan DS FAU - Kong, Fan-Jun AU - Kong FJ FAU - Guo, Xiang-Yang AU - Guo XY FAU - Xiao, Wei-Zhong AU - Xiao WZ FAU - Chui, De-Hua AU - Chui DH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150122 PL - England TA - CNS Neurosci Ther JT - CNS neuroscience & therapeutics JID - 101473265 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Receptors, Glucocorticoid) RN - EC 2.7.11.1 (Cyclin-Dependent Kinase 5) RN - EC 2.7.11.22 (Cdk5 protein, mouse) SB - IM MH - Active Transport, Cell Nucleus/physiology MH - Aging/metabolism MH - Animals MH - Brain-Derived Neurotrophic Factor/*deficiency MH - Cognition Disorders/etiology/*metabolism MH - Cyclin-Dependent Kinase 5/antagonists & inhibitors/metabolism MH - Disease Models, Animal MH - Laparotomy/adverse effects MH - Male MH - Maze Learning/drug effects/physiology MH - Mice, Inbred C57BL MH - Phosphorylation/drug effects MH - Postoperative Complications/*metabolism/psychology MH - Prefrontal Cortex/drug effects/*metabolism MH - Receptors, Glucocorticoid/antagonists & inhibitors/*metabolism MH - Stress, Physiological/*physiology PMC - PMC6495659 OTO - NOTNLM OT - Aging OT - Brain-derived neurotrophic factor (BDNF) OT - GR phosphorylation OT - Postoperative cognitive dysfunction (POCD) OT - Surgical stress COIS- The authors declare no conflict of interest. EDAT- 2015/01/23 06:00 MHDA- 2016/01/16 06:00 PMCR- 2015/01/22 CRDT- 2015/01/23 06:00 PHST- 2014/08/01 00:00 [received] PHST- 2014/11/01 00:00 [revised] PHST- 2014/11/02 00:00 [accepted] PHST- 2015/01/23 06:00 [entrez] PHST- 2015/01/23 06:00 [pubmed] PHST- 2016/01/16 06:00 [medline] PHST- 2015/01/22 00:00 [pmc-release] AID - CNS12368 [pii] AID - 10.1111/cns.12368 [doi] PST - ppublish SO - CNS Neurosci Ther. 2015 May;21(5):398-409. doi: 10.1111/cns.12368. Epub 2015 Jan 22.