PMID- 25172786 OWN - NLM STAT- MEDLINE DCOM- 20150330 LR - 20140830 IS - 1618-095X (Electronic) IS - 0944-7113 (Linking) VI - 21 IP - 11 DP - 2014 Sep 25 TI - Effect of miroestrol on ovariectomy-induced cognitive impairment and lipid peroxidation in mouse brain. PG - 1249-55 LID - S0944-7113(14)00261-X [pii] LID - 10.1016/j.phymed.2014.06.012 [doi] AB - Miroestrol (MR) is a phytoestrogen isolated from Pueraria candollei var. mirifica (KwaoKrueaKhao), a Thai medicinal plant used for rejuvenation. We examined the effects of MR on cognitive function, oxidative brain damage, and the expression of genes encoding brain-derived neurotrophic factor (BDNF) and cyclic AMP-responsive element-binding protein (CREB), factors implicated in neurogenesis and synaptic plasticity, in ovariectomized (OVX) mice. OVX decreased serum 17beta-estradiol level and uterine weight. OVX also impaired object recognition performance in the novel object recognition test and spatial cognitive performance in the Y-maze test and the water maze test. Daily treatment of MR dose-dependently attenuated OVX-induced cognitive dysfunction. Moreover, OVX mice had a significantly increased level of thiobarbituric acid-reactive substances, and down-regulated expression levels of BDNF and CREB mRNAs in the hippocampus and frontal cortex. MR treatment as well as hormone replacement therapy with 17beta-estradiol significantly reversed these neurochemical alterations caused by OVX. These results suggest that MR ameliorates cognitive deficits in OVX animals via attenuation of OVX-induced oxidative stress and down-regulation of BDNF and CREB mRNA transcription in the brain. Our findings raise the possibility that MR and Pueraria candollei var. mirifica, the plant of origin of MR, may have a beneficial effect on cognitive deficits like AD in which menopause/ovariectomy are implicated as risk factors. CI - Copyright (c) 2014 Elsevier GmbH. All rights reserved. FAU - Monthakantirat, Orawan AU - Monthakantirat O AD - Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand. FAU - Sukano, Wichitsak AU - Sukano W AD - Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand. FAU - Umehara, Kaoru AU - Umehara K AD - Department of Pharmacognosy, School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Shizuoka-shi, Shizuoka 422-8526, Japan. FAU - Noguchi, Hiroshi AU - Noguchi H AD - Department of Pharmacognosy, School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Shizuoka-shi, Shizuoka 422-8526, Japan. FAU - Chulikhit, Yaowared AU - Chulikhit Y AD - Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand; Division of Medicinal Pharmacology, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan. Electronic address: yaosum@kku.ac.th. FAU - Matsumoto, Kinzo AU - Matsumoto K AD - Division of Medicinal Pharmacology, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140725 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 (Steroids) RN - 0 (miroestrol) RN - 4TI98Z838E (Estradiol) SB - IM MH - Animals MH - Brain/drug effects/metabolism MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cognition/*drug effects MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Estradiol/blood MH - Female MH - Lipid Peroxidation/*drug effects MH - Maze Learning/drug effects MH - Mice MH - Ovariectomy MH - Plant Bark/chemistry MH - Pueraria/*chemistry MH - Steroids/*pharmacology MH - Uterus/drug effects OTO - NOTNLM OT - Cognitive dysfunction OT - Miroestrol OT - Ovariectomy OT - Oxidative stress OT - Pueraria candollei var. mirifica EDAT- 2014/08/31 06:00 MHDA- 2015/03/31 06:00 CRDT- 2014/08/31 06:00 PHST- 2014/01/29 00:00 [received] PHST- 2014/04/29 00:00 [revised] PHST- 2014/06/19 00:00 [accepted] PHST- 2014/08/31 06:00 [entrez] PHST- 2014/08/31 06:00 [pubmed] PHST- 2015/03/31 06:00 [medline] AID - S0944-7113(14)00261-X [pii] AID - 10.1016/j.phymed.2014.06.012 [doi] PST - ppublish SO - Phytomedicine. 2014 Sep 25;21(11):1249-55. doi: 10.1016/j.phymed.2014.06.012. Epub 2014 Jul 25.