PMID- 28315374 OWN - NLM STAT- MEDLINE DCOM- 20180307 LR - 20180322 IS - 1872-7549 (Electronic) IS - 0166-4328 (Linking) VI - 326 DP - 2017 May 30 TI - GLP-1 analogue CJC-1131 prevents amyloid beta protein-induced impirments of spatial memory and synaptic plasticity in rats. PG - 237-243 LID - S0166-4328(16)31123-8 [pii] LID - 10.1016/j.bbr.2017.03.018 [doi] AB - Although amyloid beta protein (Abeta) has been recognized as one of the main pathological characteristics in the brain of Alzheimer's disease (AD), the effective strategies against Abeta neurotoxicity are still deficient up to now. Glucagon-like peptide 1 (GLP-1), a natural gut hormone, was found to be effective in modulating insulin signaling and neural protection, but short half-life limited its clinical application in AD treatment. CJC-1131, a newly designed GLP-1 analogue with very longer half-life, has shown good effectiveness in the treatment of type 2 diabetes mellitus (T2DM). However, it is unclear whether CJC-1131 could alleviate Abeta-induced neurotoxicity in cognitive behavior and electrophysiological property. The present study investigated the effects of CJC-1131 on the Abeta-induced impairments in spatial memory and synaptic plasticity of rats by using Morris water maze test and in vivo field potential recording. The results showed that Abeta1-42-induced increase in the escape latency of rats in hidden platform test and decrease in swimming time percent in target quadrant were effectively reversed by CJC-1131 pretreatment. Further, CJC-1131 prevented against Abeta1-42-induced suppression of hippocampal long term potentiation (LTP). In addition, Abeta1-42 injection resulted in a significant decrease of p-PKA in the hippocampus, which was effectively prevented by CJC-1131 treatment. These results indicated that CJC-1131 protected the cognitive function and synaptic plasticity of rats against Abeta-induced impairments, suggesting that GLP-1 analogue CJC-1131 might be potentially beneficial to the prevention and treatment of AD, especially those with T2DM or blood glucose abnormality. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Zhang, Sheng-Xiao AU - Zhang SX AD - Department of Rheumatology, The Second Hospital of Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. FAU - Cai, Hong-Yan AU - Cai HY AD - Department of Microbiology and Immunology, Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. FAU - Ma, Xiao-Wen AU - Ma XW AD - Department of Rheumatology, The Second Hospital of Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. FAU - Yuan, Li AU - Yuan L AD - Department of Physiology and National Key Discipline of Physiology, Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. FAU - Zhang, Jun AU - Zhang J AD - Department of Physiology and National Key Discipline of Physiology, Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. FAU - Wang, Zhao-Jun AU - Wang ZJ AD - Department of Physiology and National Key Discipline of Physiology, Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. FAU - Li, Yu-Feng AU - Li YF AD - Department of Rheumatology, The Second Hospital of Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. FAU - Qi, Jin-Shun AU - Qi JS AD - Department of Physiology and National Key Discipline of Physiology, Shanxi Medical University, 56 Xinjian South Road, Taiyuan, Shanxi 030001, China. Electronic address: jinshunqi2009@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170315 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Amyloid beta-Peptides) RN - 0 (CJC 1131) RN - 0 (Maleimides) RN - 0 (Neuroprotective Agents) RN - 0 (Peptides) RN - 89750-14-1 (Glucagon-Like Peptide 1) SB - IM MH - Amyloid beta-Peptides/*adverse effects MH - Animals MH - Electrophysiological Phenomena MH - Glucagon-Like Peptide 1/*analysis MH - Hippocampus/*drug effects/physiopathology MH - Long-Term Potentiation/*drug effects MH - Male MH - Maleimides/administration & dosage/*pharmacology MH - Memory Disorders/chemically induced/*prevention & control MH - Neuronal Plasticity/*drug effects MH - Neuroprotective Agents/administration & dosage/*pharmacology MH - Peptides/administration & dosage/*pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Spatial Memory/*drug effects OTO - NOTNLM OT - Amyloid beta protein OT - CJC-1131 OT - Long-term potentiation OT - Morris water maze OT - Spatial memory OT - Synaptic plasticity EDAT- 2017/03/21 06:00 MHDA- 2018/03/08 06:00 CRDT- 2017/03/19 06:00 PHST- 2016/11/21 00:00 [received] PHST- 2017/03/04 00:00 [revised] PHST- 2017/03/08 00:00 [accepted] PHST- 2017/03/21 06:00 [pubmed] PHST- 2018/03/08 06:00 [medline] PHST- 2017/03/19 06:00 [entrez] AID - S0166-4328(16)31123-8 [pii] AID - 10.1016/j.bbr.2017.03.018 [doi] PST - ppublish SO - Behav Brain Res. 2017 May 30;326:237-243. doi: 10.1016/j.bbr.2017.03.018. Epub 2017 Mar 15.