PMID- 24404337 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20140109 LR - 20211021 IS - 1976-9148 (Print) IS - 2005-4483 (Electronic) IS - 1976-9148 (Linking) VI - 21 IP - 6 DP - 2013 Nov TI - Inhibitory Effects of Eucommia ulmoides Oliv. Bark on Scopolamine-Induced Learning and Memory Deficits in Mice. PG - 462-9 LID - 10.4062/biomolther.2013.074 [doi] AB - Eucommia ulmoides Oliv. Bark (EUE) is commonly used for the treatment of hypertension, rheumatoid arthritis, lumbago, and ischialgia as well as to promote longevity. In this study, we tested the effects of EUE aqueous extract in graded doses to protect and enhance cognition in scopolamine-induced learning and memory impairments in mice. EUE significantly improved the impairment of short-term or working memory induced by scopolamine in the Y-maze and significantly reversed learning and memory deficits in mice as measured by the passive avoidance and Morris water maze tests. One day after the last trial session of the Morris water maze test (probe trial session), EUE dramatically increased the latency time in the target quadrant in a dose-dependent manner. Furthermore, EUE significantly inhibited acetylcholinesterase (AChE) and thiobarbituric acid reactive substance (TBARS) activities in the hippocampus and frontal cortex in a dose-dependent manner. EUE also markedly increased brain-derived neurotrophic factor (BDNF) and phosphorylation of cAMP element binding protein (CREB) in the hippocampus of scopolamine-induced mice. Based on these findings, we suggest that EUE may be useful for the treatment of cognitive deficits, and that the beneficial effects of EUE are mediated, in part, by cholinergic signaling enhancement and/or protection. FAU - Kwon, Seung-Hwan AU - Kwon SH AD - Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea. FAU - Ma, Shi-Xun AU - Ma SX AD - Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea. FAU - Joo, Hyun-Joong AU - Joo HJ AD - Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea. FAU - Lee, Seok-Yong AU - Lee SY AD - Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea. FAU - Jang, Choon-Gon AU - Jang CG AD - Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea. LA - eng PT - Journal Article PL - Korea (South) TA - Biomol Ther (Seoul) JT - Biomolecules & therapeutics JID - 101472832 PMC - PMC3879918 OTO - NOTNLM OT - Alzheimer's disease OT - Brain-derived neurotrophic factor OT - Eucommia ulmoides Oliv. Bark OT - Learning and memory OT - Scopolamine OT - cAMP element binding protein EDAT- 2014/01/10 06:00 MHDA- 2014/01/10 06:01 PMCR- 2013/11/01 CRDT- 2014/01/10 06:00 PHST- 2013/09/13 00:00 [received] PHST- 2013/10/30 00:00 [revised] PHST- 2013/11/05 00:00 [accepted] PHST- 2014/01/10 06:00 [entrez] PHST- 2014/01/10 06:00 [pubmed] PHST- 2014/01/10 06:01 [medline] PHST- 2013/11/01 00:00 [pmc-release] AID - ooomb4-21-462 [pii] AID - 10.4062/biomolther.2013.074 [doi] PST - ppublish SO - Biomol Ther (Seoul). 2013 Nov;21(6):462-9. doi: 10.4062/biomolther.2013.074.