PMID- 29309801 OWN - NLM STAT- MEDLINE DCOM- 20190118 LR - 20211204 IS - 1873-5169 (Electronic) IS - 0196-9781 (Linking) VI - 102 DP - 2018 Apr TI - Moderate treadmill exercise ameliorates amyloid-beta-induced learning and memory impairment, possibly via increasing AMPK activity and up-regulation of the PGC-1alpha/FNDC5/BDNF pathway. PG - 78-88 LID - S0196-9781(17)30406-0 [pii] LID - 10.1016/j.peptides.2017.12.027 [doi] AB - Alzheimer's disease (AD) is a neurodegenerative disorder associated with loss of memory and cognitive abilities. Previous evidence suggested that exercise ameliorates learning and memory deficits by increasing brain derived neurotrophic factor (BDNF) and activating downstream pathways in AD animal models. However, upstream pathways related to increase BDNF induced by exercise in AD animal models are not well known. We investigated the effects of moderate treadmill exercise on Abeta-induced learning and memory impairment as well as the upstream pathway responsible for increasing hippocampal BDNF in an animal model of AD. Animals were divided into five groups: Intact, Sham, Abeta(1-42), Sham-exercise (Sham-exe) and Abeta(1-42)-exercise (Abeta-exe). Abeta was microinjected into the CA1 area of the hippocampus and then animals in the exercise groups were subjected to moderate treadmill exercise (for 4 weeks with 5 sessions per week) 7 days after microinjection. In the present study the Morris water maze (MWM) test was used to assess spatial learning and memory. Hippocampal mRNA levels of BDNF, peroxisome proliferator-activated receptor gamma co-activator 1 alpha (PGC-1alpha), fibronectin type III domain-containing 5 (FNDC5) as well as protein levels of AMPK-activated protein kinase (AMPK), PGC-1alpha, BDNF, phosphorylation of AMPK were measured. Our results showed that intra-hippocampal injection of Abeta(1-42) impaired spatial learning and memory which was accompanied by reduced AMPK activity (p-AMPK/total-AMPK ratio) and suppression of the PGC-1alpha/FNDC5/BDNF pathway in the hippocampus of rats. In contrast, moderate treadmill exercise ameliorated the Abeta(1-42)-induced spatial learning and memory deficit, which was accompanied by restored AMPK activity and PGC-1alpha/FNDC5/BDNF levels. Our results suggest that the increased AMPK activity and up-regulation of the PGC-1alpha/FNDC5/BDNF pathway by exercise are likely involved in mediating the beneficial effects of exercise on Abeta-induced learning and memory impairment. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Azimi, Mohammad AU - Azimi M AD - Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran. FAU - Gharakhanlou, Reza AU - Gharakhanlou R AD - Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran. Electronic address: ghara_re@modares.ac.ir. FAU - Naghdi, Nasser AU - Naghdi N AD - Department of Physiology and Pharmacology, Pasteur Institute of Iran, 13164, Tehran, Iran. FAU - Khodadadi, Davar AU - Khodadadi D AD - Department of Physical Education and Sport Sciences, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran. FAU - Heysieattalab, Soomaayeh AU - Heysieattalab S AD - Cognitive Neuroscience Division, Faculty of Education and Psychology, University of Tabriz, Tabriz, Iran. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180105 PL - United States TA - Peptides JT - Peptides JID - 8008690 RN - 0 (Amyloid beta-Peptides) RN - 0 (Bdnf protein, rat) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (FNDC5 protein, rat) RN - 0 (Fibronectins) RN - 0 (Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha) RN - 0 (Ppargc1a protein, rat) RN - EC 2.7.- (Protein Kinases) RN - EC 2.7.11.3 (AMP-Activated Protein Kinase Kinases) SB - IM CIN - Peptides. 2018 Apr;102:75-77. PMID: 29524561 MH - AMP-Activated Protein Kinase Kinases MH - Alzheimer Disease/genetics/physiopathology/*therapy MH - Amyloid beta-Peptides/toxicity MH - Animals MH - Brain-Derived Neurotrophic Factor/genetics MH - Disease Models, Animal MH - Exercise Test MH - Fibronectins/genetics MH - Hippocampus/metabolism MH - Humans MH - Learning Disabilities/chemically induced/genetics/physiopathology/*therapy MH - Memory Disorders/chemically induced/genetics/physiopathology/*therapy MH - Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/genetics MH - *Physical Conditioning, Animal MH - Protein Kinases/genetics MH - Rats MH - Signal Transduction OTO - NOTNLM OT - AMPK OT - Alzheimer's disease OT - BDNF OT - FNDC5 OT - Moderate treadmill exercise OT - PGC-1alpha EDAT- 2018/01/09 06:00 MHDA- 2019/01/19 06:00 CRDT- 2018/01/09 06:00 PHST- 2017/09/19 00:00 [received] PHST- 2017/12/27 00:00 [revised] PHST- 2017/12/29 00:00 [accepted] PHST- 2018/01/09 06:00 [pubmed] PHST- 2019/01/19 06:00 [medline] PHST- 2018/01/09 06:00 [entrez] AID - S0196-9781(17)30406-0 [pii] AID - 10.1016/j.peptides.2017.12.027 [doi] PST - ppublish SO - Peptides. 2018 Apr;102:78-88. doi: 10.1016/j.peptides.2017.12.027. Epub 2018 Jan 5.