PMID- 22829961 OWN - NLM STAT- MEDLINE DCOM- 20121106 LR - 20230429 IS - 1942-0994 (Electronic) IS - 1942-0900 (Print) IS - 1942-0994 (Linking) VI - 2012 DP - 2012 TI - Schizandrin, an antioxidant lignan from Schisandra chinensis, ameliorates Abeta1-42-induced memory impairment in mice. PG - 721721 LID - 10.1155/2012/721721 [doi] LID - 721721 AB - In the present study, we examined the effect of schisandrin (SCH) of Schisandra chinensis on the amyloid-beta(1-42)- (Abeta(1-42)-) induced memory impairment in mice and elucidated the possible antioxidative mechanism. Mice were intracerebroventricular (i.c.v.) injected with the aggregated Abeta(1-42) and then treated with SCH (4, 12, and 36 mg/kg body weight) or donepezil (DPZ), a reference drug (0.65 mg/kg) by intragastric infusion for 14 days. Noncognitive disturbances and cognitive performance were evaluated by locomotor activity test, Y-maze test, and water maze test. Antioxidative enzyme activities including superoxide dismutase (SOD) and glutathione peroxidase (GSH-px) and levels of malondialdehyde (MDA), glutathione (GSH), and oxidized glutathione (GSSG) within the cerebral cortex and hippocampus of mice were measured to elucidate the mechanism. Our results showed that SCH significantly improved Abeta(1-42)-induced short-term and spatial reference memory impairments in Y-maze test and water maze test. Furthermore, in the cerebral cortex and hippocampus of mice, SOD and GSH-px activities, GSH level, and GSH/GSSG ratio were increased, and levels of MDA and GSSG were decreased by the treatment of SCH. These results suggest that SCH is a potential cognitive enhancer against Alzheimer's disease through antioxidative action. FAU - Hu, Di AU - Hu D AD - Department of Pharmacognosy, Shenyang Pharmaceutical University, China. FAU - Cao, Yunfeng AU - Cao Y FAU - He, Rongrong AU - He R FAU - Han, Na AU - Han N FAU - Liu, Zhihui AU - Liu Z FAU - Miao, Lijing AU - Miao L FAU - Yin, Jun AU - Yin J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120704 PL - United States TA - Oxid Med Cell Longev JT - Oxidative medicine and cellular longevity JID - 101479826 RN - 0 (Amyloid beta-Peptides) RN - 0 (Antioxidants) RN - 0 (Cyclooctanes) RN - 0 (Lignans) RN - 0 (Peptide Fragments) RN - 0 (Polycyclic Compounds) RN - 0 (amyloid beta-protein (1-42)) RN - G01BQC0879 (schizandrin) SB - IM MH - Amyloid beta-Peptides/*toxicity MH - Animals MH - Antioxidants/chemistry/metabolism/pharmacology/*therapeutic use MH - Biological Assay MH - Cerebral Cortex/drug effects/enzymology/pathology/physiopathology MH - Cyclooctanes/chemistry/pharmacology/*therapeutic use MH - Hippocampus/drug effects/enzymology/pathology/physiopathology MH - Lignans/chemistry/pharmacology/*therapeutic use MH - Male MH - Maze Learning/drug effects MH - Memory Disorders/*drug therapy/physiopathology MH - Mice MH - Motor Activity/drug effects MH - Peptide Fragments/*toxicity MH - Polycyclic Compounds/chemistry/pharmacology/*therapeutic use MH - Reaction Time/drug effects MH - Schisandra/*chemistry PMC - PMC3399599 EDAT- 2012/07/26 06:00 MHDA- 2012/11/07 06:00 PMCR- 2012/07/04 CRDT- 2012/07/26 06:00 PHST- 2012/03/07 00:00 [received] PHST- 2012/05/14 00:00 [revised] PHST- 2012/05/14 00:00 [accepted] PHST- 2012/07/26 06:00 [entrez] PHST- 2012/07/26 06:00 [pubmed] PHST- 2012/11/07 06:00 [medline] PHST- 2012/07/04 00:00 [pmc-release] AID - 10.1155/2012/721721 [doi] PST - ppublish SO - Oxid Med Cell Longev. 2012;2012:721721. doi: 10.1155/2012/721721. Epub 2012 Jul 4.