PMID- 31256135 OWN - NLM STAT- MEDLINE DCOM- 20201009 LR - 20201009 IS - 1875-8908 (Electronic) IS - 1387-2877 (Linking) VI - 70 IP - 3 DP - 2019 TI - Exenatide Reverts the High-Fat-Diet-Induced Impairment of BDNF Signaling and Inflammatory Response in an Animal Model of Alzheimer's Disease. PG - 793-810 LID - 10.3233/JAD-190237 [doi] AB - Alzheimer's disease (AD) is a multifactorial condition in which, along with amyloid-beta (Abeta) and tau-related pathology, the synergistic activity of co-morbidity factors promote the onset and progression of the disease. Epidemiological evidence indicates that glucose intolerance, deficits in insulin secretion, or type-2 diabetes mellitus (T2DM) participate in increasing cognitive impairment or dementia risk. Insulin plays a pivotal role in the process as the hormone critically regulates brain functioning. GLP-1, the glucagon-like peptide 1, facilitates insulin signaling, regulates glucose homeostasis, and modulates synaptic plasticity. Exenatide is a synthetic GLP-1 analog employed in T2DM. However, exenatide has also been shown to affect the signaling of the brain-derived neurotrophic factor (BDNF), synaptic plasticity, and cognitive performances in animal models. In this study, we tested whether exenatide exerts neuroprotection in a preclinical AD model set to mimic the clinical complexity of the human disease. We investigated the effects of exenatide treatment in 3xTg-AD mice challenged with a high-fat diet (HFD). Endpoints of the study were variations in systemic metabolism, insulin and neurotrophic signaling, neuroinflammation, Abeta and tau pathology, and cognitive performances. Results of the study indicate that exenatide reverts the adverse changes of BDNF signaling and the neuroinflammation status of 3xTg-AD mice undergoing HFD without affecting systemic metabolism or promoting changes in cognitive performances. FAU - Bomba, Manuela AU - Bomba M AD - Center of Excellence on Aging and Translational Medicine - CeSI-MeT, University G. d'Annunzio of Chieti-Pescara, Italy. AD - Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Italy. FAU - Granzotto, Alberto AU - Granzotto A AD - Center of Excellence on Aging and Translational Medicine - CeSI-MeT, University G. d'Annunzio of Chieti-Pescara, Italy. AD - Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Italy. FAU - Castelli, Vanessa AU - Castelli V AD - Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy. FAU - Onofrj, Marco AU - Onofrj M AD - Center of Excellence on Aging and Translational Medicine - CeSI-MeT, University G. d'Annunzio of Chieti-Pescara, Italy. AD - Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Italy. FAU - Lattanzio, Rossano AU - Lattanzio R AD - Center of Excellence on Aging and Translational Medicine - CeSI-MeT, University G. d'Annunzio of Chieti-Pescara, Italy. AD - Department of Medical, Oral, and Biotechnological Sciences, University G. d'Annunzio of Chieti-Pescara, Italy. FAU - Cimini, Annamaria AU - Cimini A AD - Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy. AD - Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, PA, USA. AD - National Institute for Nuclear Physics (INFN), Gran Sasso National Laboratory (LNGS), Assergi, Italy. FAU - Sensi, Stefano L AU - Sensi SL AD - Center of Excellence on Aging and Translational Medicine - CeSI-MeT, University G. d'Annunzio of Chieti-Pescara, Italy. AD - Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Italy. AD - Departments of Neurology and Pharmacology, Institute for Mind Impairments and Neurological Disorders - iMIND, University of California - Irvine, Irvine, CA, USA. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Alzheimers Dis JT - Journal of Alzheimer's disease : JAD JID - 9814863 RN - 0 (Bdnf protein, mouse) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Hypoglycemic Agents) RN - 0 (Insulin) RN - 0 (Neuroprotective Agents) RN - 89750-14-1 (Glucagon-Like Peptide 1) RN - 9P1872D4OL (Exenatide) SB - IM MH - *Alzheimer Disease/drug therapy/metabolism MH - Animals MH - Brain/*metabolism MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Cognitive Dysfunction/metabolism MH - Disease Models, Animal MH - Exenatide/*pharmacology MH - Female MH - Glucagon-Like Peptide 1/metabolism MH - Glucose Tolerance Test/methods MH - Hypoglycemic Agents/pharmacology MH - Insulin/*metabolism MH - Insulin Resistance MH - Male MH - Mice MH - Neuroimmunomodulation/drug effects MH - *Neuronal Plasticity/drug effects/physiology MH - Neuroprotective Agents/pharmacology MH - Signal Transduction/drug effects OTO - NOTNLM OT - Aging OT - BDNF OT - T2DM OT - dementia OT - diabetes OT - exendin-4 OT - insulin OT - insulin resistance OT - neurotrophic factors EDAT- 2019/07/01 06:00 MHDA- 2020/10/10 06:00 CRDT- 2019/07/01 06:00 PHST- 2019/07/01 06:00 [pubmed] PHST- 2020/10/10 06:00 [medline] PHST- 2019/07/01 06:00 [entrez] AID - JAD190237 [pii] AID - 10.3233/JAD-190237 [doi] PST - ppublish SO - J Alzheimers Dis. 2019;70(3):793-810. doi: 10.3233/JAD-190237.