PMID- 22447151 OWN - NLM STAT- MEDLINE DCOM- 20120918 LR - 20211021 IS - 1432-1912 (Electronic) IS - 0028-1298 (Linking) VI - 385 IP - 6 DP - 2012 Jun TI - FLZ, synthetic squamosamide cyclic derivative, attenuates memory deficit and pathological changes in mice with experimentally induced aging. PG - 579-85 LID - 10.1007/s00210-012-0745-z [doi] AB - The aim of this study was to investigate the protective effects of N-[2-(4-hydroxy-phenyl)-ethyl]-2-(2,5-dimethoxy-phenyl)-3-(3-methoxy-4-hydroxy-phenyl)-acrylamide (FLZ), a synthetic squamosamide cyclic derivative, on senescent mice induced by D: -galactose/NaNO(2) (120/90 mg/kg, i.p.) once daily for 60 days. FLZ (75 and 150 mg/kg) was orally administered once daily for 30 days after D: -galactose/NaNO(2) treatment for 30 days. The cognitive function of mice was evaluated with step-down task. The brain biomarkers including monoamine oxidase B (MAO-B), glutathione peroxidase (GSH-px), and malondialdehyde (MDA) were determined according to the manufacturer's instructions. The expression of acetylcholinesterase (ACh-E) and choline acetyltransferase (ChAT) protein in the CA1 region of hippocampus were counted by immunohistochemical staining. The results showed that the cognitive function, GSH-px activity in the brain, and the expression of ACh-E and ChAT in the CA1 region of hippocampus were significantly decreased, while MAO-B activity and MDA level in the brain were increased in senescent mice compared with the control mice. FLZ treatment prolonged the step-down latency and decreased the number of step-down errors in the senescent mice. In addition, FLZ treatment increased the GSH-px activity and the expression of ACh-E and ChAT in the hippocampus and decreased the MDA level and MAO-B activity compared with the senescent mice without drug administration. These findings suggested that FLZ improves the performance in the step-down task and the pathological alternations in senescent mice. FAU - Fang, Fang AU - Fang F AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. fangf@bucm.edu.cn FAU - Wang, Qing-li AU - Wang QL FAU - Liu, Geng-tao AU - Liu GT LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120324 PL - Germany TA - Naunyn Schmiedebergs Arch Pharmacol JT - Naunyn-Schmiedeberg's archives of pharmacology JID - 0326264 RN - 0 (Benzeneacetamides) RN - 0 (Neuroprotective Agents) RN - 0 (Phenols) RN - 142750-35-4 (squamosamide) RN - 4Y8F71G49Q (Malondialdehyde) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - EC 1.4.3.4 (Monoamine Oxidase) RN - M0KG633D4F (Sodium Nitrite) RN - X2RN3Q8DNE (Galactose) SB - IM MH - Aging/*physiology MH - Animals MH - Avoidance Learning/drug effects MH - Benzeneacetamides/pharmacology/*therapeutic use MH - Brain/drug effects/pathology/physiopathology MH - Disease Models, Animal MH - Galactose MH - Glutathione Peroxidase/metabolism MH - Male MH - Malondialdehyde/metabolism MH - Memory Disorders/chemically induced/*drug therapy/physiopathology MH - Mice MH - Mice, Inbred ICR MH - Monoamine Oxidase/metabolism MH - Neurons/drug effects/pathology MH - Neuroprotective Agents/pharmacology/*therapeutic use MH - Phenols/pharmacology/*therapeutic use MH - Sodium Nitrite EDAT- 2012/03/27 06:00 MHDA- 2012/09/19 06:00 CRDT- 2012/03/27 06:00 PHST- 2011/10/24 00:00 [received] PHST- 2012/02/29 00:00 [accepted] PHST- 2012/03/27 06:00 [entrez] PHST- 2012/03/27 06:00 [pubmed] PHST- 2012/09/19 06:00 [medline] AID - 10.1007/s00210-012-0745-z [doi] PST - ppublish SO - Naunyn Schmiedebergs Arch Pharmacol. 2012 Jun;385(6):579-85. doi: 10.1007/s00210-012-0745-z. Epub 2012 Mar 24.