PMID- 23079232 OWN - NLM STAT- MEDLINE DCOM- 20130426 LR - 20181202 IS - 1618-095X (Electronic) IS - 0944-7113 (Linking) VI - 19 IP - 14 DP - 2012 Nov 15 TI - Cognition-enhancing and neuroprotective activities of the standardized extract of Betula platyphylla bark and its major diarylheptanoids. PG - 1315-20 LID - S0944-7113(12)00322-4 [pii] LID - 10.1016/j.phymed.2012.09.012 [doi] AB - Diarylheptanoids have been the center of the intensive research efforts for Alzheimer's disease and other neurodegenerative diseases. The present study aimed to determine the effect of the standardized extract of B. platyphylla bark and its major diarylheptanoids in scopolamine-induced amnesic mice through cyclic AMP response element-binding protein (CREB) activation. Oral administration of the standardized extract of B. platyphylla bark (100mg/kg body weight), aceroside VIII (1mg/kg body weight) and platyphylloside (1 or 2mg/kg body weight) significantly ameliorated scopolamine-induced amnesia in passive avoidance test. CREB phosphorylation and brain-derived neurotrophic factor (BDNF) expression in the cortex and hippocampus of the scopolamine-treated mice were markedly increased by the treatment of the standardized extract of B. platyphylla bark and platyphylloside. The standardized extract of B. platyphylla bark and its major diarylheptanoids also significantly protected HT22 cells against neurotoxicity induced by glutamate insult. The standardized extract of B. platyphylla bark and platyphylloside may ameliorate memory deficits by activating the CREB-BDNF pathway and prevent a neurodegeneration by inhibiting neuronal cell death. CI - Copyright (c) 2012 Elsevier GmbH. All rights reserved. FAU - Lee, Ki Yong AU - Lee KY AD - College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul, Republic of Korea. FAU - Jeong, Eun Ju AU - Jeong EJ FAU - Huh, Jungmoo AU - Huh J FAU - Cho, Namki AU - Cho N FAU - Kim, Tae Bum AU - Kim TB FAU - Jeon, Byung Ju AU - Jeon BJ FAU - Kim, Seung Hyun AU - Kim SH FAU - Kim, Hong Pyo AU - Kim HP FAU - Sung, Sang Hyun AU - Sung SH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121015 PL - Germany TA - Phytomedicine JT - Phytomedicine : international journal of phytotherapy and phytopharmacology JID - 9438794 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Diarylheptanoids) RN - 0 (Neuroprotective Agents) RN - 0 (Plant Extracts) RN - 3KX376GY7L (Glutamic Acid) RN - DL48G20X8X (Scopolamine) SB - IM MH - Administration, Oral MH - Amnesia/chemically induced/metabolism/*prevention & control MH - Animals MH - Avoidance Learning/drug effects MH - Betula/*chemistry MH - Brain/drug effects/metabolism MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cell Death/drug effects MH - Cognition/*drug effects MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Diarylheptanoids/pharmacology/*therapeutic use MH - Glutamic Acid MH - Male MH - Mice MH - Mice, Inbred ICR MH - Neurodegenerative Diseases/metabolism/prevention & control MH - Neuroprotective Agents/pharmacology/*therapeutic use MH - *Phytotherapy MH - Plant Bark MH - Plant Extracts/pharmacology/*therapeutic use MH - Reference Standards MH - Scopolamine MH - Signal Transduction EDAT- 2012/10/20 06:00 MHDA- 2013/04/27 06:00 CRDT- 2012/10/20 06:00 PHST- 2012/04/18 00:00 [received] PHST- 2012/07/16 00:00 [revised] PHST- 2012/09/06 00:00 [accepted] PHST- 2012/10/20 06:00 [entrez] PHST- 2012/10/20 06:00 [pubmed] PHST- 2013/04/27 06:00 [medline] AID - S0944-7113(12)00322-4 [pii] AID - 10.1016/j.phymed.2012.09.012 [doi] PST - ppublish SO - Phytomedicine. 2012 Nov 15;19(14):1315-20. doi: 10.1016/j.phymed.2012.09.012. Epub 2012 Oct 15.