PMID- 24326685 OWN - NLM STAT- MEDLINE DCOM- 20140829 LR - 20131219 IS - 2042-650X (Electronic) IS - 2042-6496 (Linking) VI - 5 IP - 1 DP - 2014 Jan TI - Astaxanthin alleviates brain aging in rats by attenuating oxidative stress and increasing BDNF levels. PG - 158-66 LID - 10.1039/c3fo60400d [doi] AB - Astaxanthin (AST) is a carotenoid pigment which possesses potent antioxidative, anti-inflammatory, and neuroprotective properties. The aim of this study was to investigate whether administration of AST had protective effects on D-galactose-induced brain aging in rats, and further examined its protective mechanisms. The results showed that AST treatment significantly restored the activities of glutathione peroxidase (GSH-PX) and superoxide dismutase (SOD), and increased glutathione (GSH) contents and total antioxidant capacity (T-AOC), but decreased malondialdehyde (MDA), protein carbonylation and 8-hydroxy-2- deoxyguanosine (8-OHdG) levels in the brains of aging rats. Furthermore, AST increased the ratio of Bcl-2/Bax, but decreased the expression of Cyclooxygenase-2 (COX-2) in the brains of aging rats. Additionally, AST ameliorated histopathological changes in the hippocampus and restored brain derived neurotrophic factor (BDNF) levels in both the brains and hippocampus of aging rats. These results suggested that AST could alleviate brain aging, which may be due to attenuating oxidative stress, ameliorating hippocampus damage, and upregulating BDNF expression. FAU - Wu, Wanqiang AU - Wu W AD - College of Food Science and Engineering, Northwest A&F University, 28. Xi-nong Road, Yangling 712100, China. xueboliu@yahoo.com.cn. FAU - Wang, Xin AU - Wang X FAU - Xiang, Qisen AU - Xiang Q FAU - Meng, Xu AU - Meng X FAU - Peng, Ye AU - Peng Y FAU - Du, Na AU - Du N FAU - Liu, Zhigang AU - Liu Z FAU - Sun, Quancai AU - Sun Q FAU - Wang, Chan AU - Wang C FAU - Liu, Xuebo AU - Liu X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Food Funct JT - Food & function JID - 101549033 RN - 0 (Antioxidants) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Protective Agents) RN - 0 (Xanthophylls) RN - 4Y8F71G49Q (Malondialdehyde) RN - 8XPW32PR7I (astaxanthine) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - EC 3.4.22.- (Caspase 3) SB - IM MH - Aging/*drug effects/metabolism MH - Animals MH - Antioxidants/pharmacology MH - Brain/*drug effects/enzymology/growth & development/*metabolism MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Caspase 3/metabolism MH - Glutathione Peroxidase/metabolism MH - Humans MH - Male MH - Malondialdehyde/metabolism MH - Oxidative Stress/*drug effects MH - Protective Agents/*pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Superoxide Dismutase/metabolism MH - Xanthophylls/pharmacology EDAT- 2013/12/12 06:00 MHDA- 2014/08/30 06:00 CRDT- 2013/12/12 06:00 PHST- 2013/12/12 06:00 [entrez] PHST- 2013/12/12 06:00 [pubmed] PHST- 2014/08/30 06:00 [medline] AID - 10.1039/c3fo60400d [doi] PST - ppublish SO - Food Funct. 2014 Jan;5(1):158-66. doi: 10.1039/c3fo60400d.