PMID- 25301235 OWN - NLM STAT- MEDLINE DCOM- 20150728 LR - 20191210 IS - 1873-6351 (Electronic) IS - 0278-6915 (Linking) VI - 74 DP - 2014 Dec TI - The effects of Betula platyphylla bark on amyloid beta-induced learning and memory impairment in mice. PG - 156-63 LID - S0278-6915(14)00420-7 [pii] LID - 10.1016/j.fct.2014.09.019 [doi] AB - Alzheimer's disease (AD) is closely associated with amyloid beta (Abeta)-induced neurotoxicity and oxidative stress in the brain. Betula platyphylla, which has been used to treat various oxidative-stressed related diseases, has recently received attention for its preventive activity on age-related neurodegenerative diseases. In this study, we attempted to investigate the effects of B. platyphylla bark (BPB-316) on Abeta(1-42)-induced neurotoxicity and memory impairment. Oral treatment using BPB-316 significantly attenuated Abeta-induced memory impairment which was evaluated by behavioral tests including the passive avoidance, Y-maze and Morris water maze test. BPB-316 also inhibited the elevation of beta-secretase activity accompanying the reduced Abeta(1-42) levels in the hippocampus of the brain. Furthermore, BPB-316 significantly decreased the acetylcholinesterase activity and increased the glutathione content in the hippocampus. In addition, we confirmed that the expression of both cAMP responsive element-binding protein (CREB) and brain-derived neurotrophic factor (BDNF) in the hippocampus of Abeta(1-42)-injected mice were markedly upregulated by the treatment of BPB-316. Our data suggest that the extracts of B. platyphylla bark might be a potential therapeutic agent against AD. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Cho, Namki AU - Cho N AD - College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul 151-742, Republic of Korea. FAU - Lee, Hee Kyoung AU - Lee HK AD - Institute for Life Science, Elcom Science Co. Ltd., Seoul, Republic of Korea. FAU - Jeon, Byung Ju AU - Jeon BJ AD - Institute for Life Science, Elcom Science Co. Ltd., Seoul, Republic of Korea. FAU - Kim, Hyeon Woo AU - Kim HW AD - College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul 151-742, Republic of Korea. FAU - Kim, Hong Pyo AU - Kim HP AD - College of Pharmacy, Ajou University, Suwon 443-749, Republic of Korea. FAU - Lee, Jong-Hwan AU - Lee JH AD - Department of Veterinary Anatomy, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea. FAU - Kim, Young Choong AU - Kim YC AD - College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul 151-742, Republic of Korea. FAU - Sung, Sang Hyun AU - Sung SH AD - College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul 151-742, Republic of Korea. Electronic address: shsung@snu.ac.kr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141006 PL - England TA - Food Chem Toxicol JT - Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association JID - 8207483 RN - 0 (Amyloid beta-Peptides) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Peptide Fragments) RN - 0 (Plant Extracts) RN - 0 (amyloid beta-protein (1-42)) RN - EC 3.1.1.7 (Acetylcholinesterase) RN - EC 3.4.- (Amyloid Precursor Protein Secretases) RN - EC 3.4.23.- (Aspartic Acid Endopeptidases) RN - EC 3.4.23.46 (Bace1 protein, mouse) RN - GAN16C9B8O (Glutathione) SB - IM MH - Acetylcholinesterase/metabolism MH - Amyloid Precursor Protein Secretases/biosynthesis/genetics MH - Amyloid beta-Peptides/*antagonists & inhibitors/*toxicity MH - Animals MH - Aspartic Acid Endopeptidases/biosynthesis/genetics MH - Avoidance Learning/drug effects MH - Betula/*chemistry MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Glutathione/metabolism MH - Hippocampus/drug effects/metabolism MH - Learning Disabilities/*chemically induced/*prevention & control/psychology MH - Male MH - Maze Learning/drug effects MH - Memory Disorders/*chemically induced/*prevention & control/psychology MH - Mice MH - Mice, Inbred ICR MH - Peptide Fragments/*antagonists & inhibitors/*toxicity MH - Plant Bark/chemistry MH - Plant Extracts/*pharmacology OTO - NOTNLM OT - Alzheimer's disease OT - Amyloid beta OT - Behavioral test OT - Betula platyphylla bark OT - CREB-BDNF pathway EDAT- 2014/10/11 06:00 MHDA- 2015/07/29 06:00 CRDT- 2014/10/11 06:00 PHST- 2014/04/21 00:00 [received] PHST- 2014/08/28 00:00 [revised] PHST- 2014/09/29 00:00 [accepted] PHST- 2014/10/11 06:00 [entrez] PHST- 2014/10/11 06:00 [pubmed] PHST- 2015/07/29 06:00 [medline] AID - S0278-6915(14)00420-7 [pii] AID - 10.1016/j.fct.2014.09.019 [doi] PST - ppublish SO - Food Chem Toxicol. 2014 Dec;74:156-63. doi: 10.1016/j.fct.2014.09.019. Epub 2014 Oct 6.