PMID- 23811071 OWN - NLM STAT- MEDLINE DCOM- 20131231 LR - 20211021 IS - 1873-7544 (Electronic) IS - 0306-4522 (Print) IS - 0306-4522 (Linking) VI - 248 DP - 2013 Sep 17 TI - Exercise facilitates the action of dietary DHA on functional recovery after brain trauma. PG - 655-63 LID - S0306-4522(13)00547-2 [pii] LID - 10.1016/j.neuroscience.2013.06.041 [doi] AB - The abilities of docosahexaenoic acid (DHA) and exercise to counteract cognitive decay after traumatic brain injury (TBI) is getting increasing recognition; however, the possibility that these actions can be complementary remains just as an intriguing possibility. Here we have examined the likelihood that the combination of diet and exercise has the added potential to facilitate functional recovery following TBI. Rats received mild fluid percussion injury (mFPI) or sham injury and then were maintained on a diet high in DHA (1.2% DHA) with or without voluntary exercise for 12days. We found that FPI reduced DHA content in the brain, which was accompanied by increased levels of lipid peroxidation assessed using 4-hydroxy-2-hexenal (4-HHE). FPI reduced the enzymes acyl-CoA oxidase 1 (Acox1) and 17beta-hydroxysteroid dehydrogenase type 4 (17beta-HSD4), and the calcium-independent phospholipases A2 (iPLA2), which are involved in metabolism of membrane phospholipids. FPI reduced levels of syntaxin-3 (STX-3), involved in the action of membrane DHA on synaptic membrane expansion, and also reduced brain-derived neurotrophic factor (BDNF) signaling through its tyrosine kinase B (TrkB) receptor. These effects of FPI were optimally counteracted by the combination of DHA and exercise. Our results support the possibility that the complementary action of exercise is exerted on restoring membrane homeostasis after TBI, which is necessary for supporting synaptic plasticity and cognition. It is our contention that strategies that take advantage of the combined applications of diet and exercise may have additional effects to the injured brain. CI - Copyright (c) 2013 IBRO. Published by Elsevier Ltd. All rights reserved. FAU - Wu, A AU - Wu A AD - Department of Integrative Biology and Physiology, University of California at Los Angeles, 621 Charles E. Young Drive, Los Angeles, CA 90095, USA. agwu@ucla.edu FAU - Ying, Z AU - Ying Z FAU - Gomez-Pinilla, F AU - Gomez-Pinilla F LA - eng GR - R01 NS050465/NS/NINDS NIH HHS/United States GR - NS50465/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20130628 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 RN - 0 (Qa-SNARE Proteins) RN - 25167-62-8 (Docosahexaenoic Acids) RN - EC 1.3.3.6 (Acyl-CoA Oxidase) RN - EC 3.1.1.4 (Phospholipases A2, Calcium-Independent) RN - EC 4.2.1.107 (Peroxisomal Multifunctional Protein-2) SB - IM MH - Acyl-CoA Oxidase/*metabolism MH - Animals MH - Brain Injuries/diet therapy/physiopathology/*therapy MH - Cognition/drug effects MH - Combined Modality Therapy MH - Docosahexaenoic Acids/*administration & dosage/metabolism/therapeutic use MH - *Exercise Therapy MH - Maze Learning/drug effects MH - Neuronal Plasticity/drug effects MH - Oxidative Stress/physiology MH - Peroxisomal Multifunctional Protein-2/*metabolism MH - Phospholipases A2, Calcium-Independent/*metabolism MH - Qa-SNARE Proteins/*metabolism MH - Rats MH - Rats, Sprague-Dawley MH - *Recovery of Function MH - Synapses/drug effects PMC - PMC3951948 MID - NIHMS510007 OTO - NOTNLM OT - 17beta-HSD4 OT - 17beta-hydroxysteroid dehydrogenase type 4 OT - ANOVA OT - Acox1 OT - BDNF OT - CTL OT - DHA OT - Exc OT - FAME OT - FPI OT - GC OT - MWZ OT - Morris water maze OT - RGD OT - STX-3 OT - Sed OT - TBI OT - acyl-CoA oxidase 1 OT - analysis of variance OT - calcium-independent phospholipase A2 OT - cognition OT - control OT - docosahexaenoic acid OT - exercise OT - fatty acid methyl esters OT - fluid percussion injury OT - gas chromatography OT - iPLA2 OT - omega-3 fatty acids OT - regular diet OT - sedentary OT - syntaxin 3 OT - traumatic brain injury EDAT- 2013/07/03 06:00 MHDA- 2014/01/01 06:00 PMCR- 2014/09/17 CRDT- 2013/07/02 06:00 PHST- 2013/05/07 00:00 [received] PHST- 2013/06/11 00:00 [revised] PHST- 2013/06/19 00:00 [accepted] PHST- 2013/07/02 06:00 [entrez] PHST- 2013/07/03 06:00 [pubmed] PHST- 2014/01/01 06:00 [medline] PHST- 2014/09/17 00:00 [pmc-release] AID - S0306-4522(13)00547-2 [pii] AID - 10.1016/j.neuroscience.2013.06.041 [doi] PST - ppublish SO - Neuroscience. 2013 Sep 17;248:655-63. doi: 10.1016/j.neuroscience.2013.06.041. Epub 2013 Jun 28.