PMID- 28048972 OWN - NLM STAT- MEDLINE DCOM- 20170807 LR - 20191210 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1659 DP - 2017 Mar 15 TI - Astaxanthin improves cognitive performance in mice following mild traumatic brain injury. PG - 88-95 LID - S0006-8993(16)30860-5 [pii] LID - 10.1016/j.brainres.2016.12.031 [doi] AB - BACKGROUND: Traumatic brain injury (TBI) produces lasting neurological deficits that plague patients and physicians. To date, there is no effective method to combat the source of this problem. Here, we utilized a mild, closed head TBI model to determine the modulatory effects of a natural dietary compound, astaxanthin (AST). AST is centrally active following oral administration and is neuroprotective in experimental brain ischemia/stroke and subarachnoid hemorrhage (SAH) models. We examined the effects of oral AST on the long-term neurological functional recovery and histological outcomes following moderate TBI in a mice model. METHODS: Male adult ICR mice were divided into 3 groups: (1) Sham+olive oil vehicle treated, (2) TBI+olive oil vehicle treated, and (3) TBI+AST. The olive oil vehicle or AST were administered via oral gavage at scheduled time points. Closed head brain injury was applied using M.A. Flierl weight-drop method. NSS, Rotarod, ORT, and Y-maze were performed to test the behavioral or neurological outcome. The brain sections from the mice were stained with H&E and cresyl-violet to test the injured lesion volume and neuronal loss. Western blot analysis was performed to investigate the mechanisms of neuronal cell survival and neurological function improvement. RESULTS: AST administration improved the sensorimotor performance on the Neurological Severity Score (NSS) and rotarod test and enhanced cognitive function recovery in the object recognition test (ORT) and Y-maze test. Moreover, AST treatment reduced the lesion size and neuronal loss in the cortex compared with the vehicle-treated TBI group. AST also restored the levels of brain-derived neurotropic factor (BDNF), growth-associated protein-43 (GAP-43), synapsin, and synaptophysin (SYP) in the cerebral cortex, which indicates the promotion of neuronal survival and plasticity. CONCLUSION: To the best of our knowledge, this is the first study to demonstrate the protective role and the underlining mechanism of AST in TBI. Based on these neuroprotective actions and considering its longstanding clinical use, AST should be considered for the clinical treatment of TBI. CI - Copyright A(c) 2017 Elsevier B.V. All rights reserved. FAU - Ji, Xinran AU - Ji X AD - The Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital (301 Hospital), 28 Fuxing Road, Wukesong, Beijing 100000, China. FAU - Peng, Dayong AU - Peng D AD - Department of Orthopedics, Shandong Qianfoshan Hospital, Shandong University, Jing Shi Road, Jinan, Shandong 250014, China. FAU - Zhang, Yiling AU - Zhang Y AD - The Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital (301 Hospital), 28 Fuxing Road, Wukesong, Beijing 100000, China. FAU - Zhang, Jun AU - Zhang J AD - The Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital (301 Hospital), 28 Fuxing Road, Wukesong, Beijing 100000, China. FAU - Wang, Yuning AU - Wang Y AD - The Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital (301 Hospital), 28 Fuxing Road, Wukesong, Beijing 100000, China. FAU - Gao, Yuan AU - Gao Y AD - The Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital (301 Hospital), 28 Fuxing Road, Wukesong, Beijing 100000, China. FAU - Lu, Ning AU - Lu N AD - The Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital (301 Hospital), 28 Fuxing Road, Wukesong, Beijing 100000, China. Electronic address: luning301@126.com. FAU - Tang, Peifu AU - Tang P AD - The Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital (301 Hospital), 28 Fuxing Road, Wukesong, Beijing 100000, China. Electronic address: tangpeifu301@126.com. LA - eng PT - Journal Article DEP - 20161231 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Neuroprotective Agents) RN - 0 (Nootropic Agents) RN - 0 (Xanthophylls) RN - 8XPW32PR7I (astaxanthine) SB - IM MH - Animals MH - Brain Concussion/*drug therapy/metabolism/pathology/*psychology MH - Cerebral Cortex/drug effects/metabolism/pathology MH - Cognition/*drug effects MH - Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Drug Evaluation, Preclinical MH - Male MH - Maze Learning/drug effects MH - Mice, Inbred ICR MH - Neurons/drug effects/metabolism/pathology MH - Neuroprotective Agents/*pharmacology MH - Nootropic Agents/*pharmacology MH - Recognition, Psychology/drug effects MH - Rotarod Performance Test MH - Severity of Illness Index MH - Spatial Memory/drug effects MH - Xanthophylls/pharmacology OTO - NOTNLM OT - Astaxanthin OT - Growth-associated protein OT - NSS OT - Object recognition test OT - Rotarod test OT - Synaptic protein OT - Traumatic brain injury OT - Y-maze EDAT- 2017/01/04 06:00 MHDA- 2017/08/08 06:00 CRDT- 2017/01/04 06:00 PHST- 2016/09/14 00:00 [received] PHST- 2016/12/30 00:00 [accepted] PHST- 2017/01/04 06:00 [pubmed] PHST- 2017/08/08 06:00 [medline] PHST- 2017/01/04 06:00 [entrez] AID - S0006-8993(16)30860-5 [pii] AID - 10.1016/j.brainres.2016.12.031 [doi] PST - ppublish SO - Brain Res. 2017 Mar 15;1659:88-95. doi: 10.1016/j.brainres.2016.12.031. Epub 2016 Dec 31.