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Beheshti F, Hashemzehi M, Sabeti N, Hashemi Sadr S, Hosseini M. The effects of aminoguanidine on hippocampal cytokines, amyloid beta, brain-derived neurotrophic factor, memory and oxidative stress status in chronically lipopolysaccharide-treated rats. Cytokine 2018; 113:347-355. [PMID: 30327173 DOI: 10.1016/j.cyto.2018.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 09/22/2018] [Accepted: 10/04/2018] [Indexed: 12/20/2022]
Abstract
INTRODUCTION In the present study, the effects of aminoguanidine (AMG) on hippocampal cytokines, amyloid beta (Aβ), brain-derived neurotrophic factor, oxidative stress status and memory in chronically lipopolysaccharide (LPS) treated rats were investigated. METHODS The rats were divided into five groups and were treated: (1) Control (Saline), (2) LPS (1 mg/kg), (3-5) LPS- AMG50, LPS-AMG100, and LPS-AMG150 (AMG 50, 100 and 150 mg/kg 30 min before LPS injection). The treatment started five weeks prior to the behavioral experiments and continued during the behavioral tests (LPS injection two hours before each behavioral evaluation). Finally, the tissue was removed for biochemical measurements. RESULTS The escape latency in Morris water maze test and the latency to enter the dark compartment in passive avoidance test in LPS group were significantly greater than the control group (P < 0.001), while, in LPS-AMG 100 and LPS-AMG150 groups they were less than LPS group (P < 0.001). Malondialdehyde (MDA), NO metabolites of hippocampal and cortical tissues and interleukin-6 (IL-6), Aβ and tumor necrosis factor-α (TNFα) concentration in the hippocampus of LPS group were higher than control group (P < 0.001-P < 0.05). However, in LPS-AMG 100 and LPS-AMG150 group they were lower than LPS group (P < 0.001-P < 0.05). The thiol content and the activities of catalase (CAT) and superoxide dismutase (SOD) in both cortical and hippocampal tissues of LPS group were reduced compared to the control group (P < 0.001-P < 0.05). These factors enhanced in LPS-AMG 100 and LPS-AMG150 groups compared to LPS (P < 0.001-P < 0.05). The hippocampal content of brain-derived neurotrophic factor (BDNF) in LPS group was significantly lower compared to the control group (P < 0.001). All treated groups had higher BDNF content in comparison to LPS group (P < 0.01-P < 0.001). CONCLUSION The findings indicated that the protective effects of AMG against LPS-induced memory were accompanied by decreasing of inflammatory cytokines, Aβ, oxidative stress and increasing of anti-inflammatory mediators and BDNF.
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Affiliation(s)
- Farimah Beheshti
- Department of Basic Sciences and Neuroscience Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Milad Hashemzehi
- Iranshahr University of Medical Sciences, Iranshahr, Iran; Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nona Sabeti
- Neurogenic Inflammation Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Student Research Committee, Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Susan Hashemi Sadr
- Student Research Committee, Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Hosseini
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Kooshki R, Abbasnejad M, Esmaeili-Mahani S, Raoof M. The effect of CA1 administration of orexin-A on hippocampal expression of COX-2 and BDNF in a rat model of orofacial pain. ARQUIVOS DE NEURO-PSIQUIATRIA 2018; 76:603-608. [DOI: 10.1590/0004-282x20180099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 06/12/2018] [Indexed: 11/22/2022]
Abstract
ABSTRACT The neuropeptide orexin-A and its receptors are widely distributed in both hippocampal circuitry and pain transmission pathways. Objective: Involvement of the CA1 orexin 1 receptor (OX1R) on the modulation of orofacial pain and pain-induced changes in hippocampal expression of cyclooxygenase-2 (COX-2) and brain-derived neurotrophic factor (BDNF) was investigated. Methods: Orofacial pain was induced by an intra-lip injection of capsaicin (100 μg). Reverse transcription polymerase chain reaction and immunoblot analysis were used to indicate changes in hippocampal BDNF and COX-2 expression, respectively. Results: Capsaicin induces a significant pain response, which is not affected by either orexin-A or SB-334867-A, an OX1R antagonist. However, an increased expression of COX-2 and decreased expression of BDNF was observed in the hippocampus of animals that received capsaicin or SB-334867-A (80 nM) plus capsaicin. Meanwhile, orexin-A (40 pM) attenuated the effects of capsaicin on the expression of COX-2 and BDNF. Conclusions: CA1 OX1R activation moderates capsaicin-induced neuronal inflammation and neurotrophic deficiency.
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Affiliation(s)
| | | | | | - Maryam Raoof
- Kerman University of Medical Sciences, Iran; Kerman University of Medical Sciences, Iran
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Lim YY, Hassenstab J, Goate A, Fagan AM, Benzinger TLS, Cruchaga C, McDade E, Chhatwal J, Levin J, Farlow MR, Graff-Radford NR, Laske C, Masters CL, Salloway S, Schofield P, Morris JC, Maruff P, Bateman RJ. Effect of BDNFVal66Met on disease markers in dominantly inherited Alzheimer's disease. Ann Neurol 2018; 84:424-435. [PMID: 30014553 DOI: 10.1002/ana.25299] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Previous studies suggest that the brain-derived neurotrophic factor (BDNF) Val66Met (rs6265) polymorphism may influence symptom onset in Alzheimer's disease (AD). Our recent cross-sectional findings suggest that Met66 may influence clinical expression in dominantly inherited AD (DIAD) through its effects on tau. However, it remains unclear whether carriage of Met66 in DIAD results in faster increases in cerebrospinal fluid (CSF) tau and ptau181 , and whether these increases are associated with accelerated brain volume loss and memory decline. METHODS A total of 211 subjects (101 mutation noncarriers, 110 mutation carriers), who were cognitively normal, as defined by a Clinical Dementia Rating global score of 0, completed assessments of cognitive function, neuroimaging, and CSF sampling over 3.5 years as part of the Dominantly Inherited Alzheimer's Network. RESULTS In mutation carriers, Met66 carriers showed faster memory decline (4×), hippocampal volume loss (16×), and CSF tau and ptau181 increases (6×) than Val66 homozygotes. BDNF did not influence rates of cortical β-amyloid accumulation or change in CSF Aβ42 levels in mutation carriers. In mutation noncarriers, BDNF genotype had no effect on change in cognition, brain volume, cortical β-amyloid accumulation, or change in any CSF measures of tau, ptau181 , and CSF Aβ42 . INTERPRETATION As in sporadic AD, the deleterious effects of β-amyloid on cognitive function, brain volume loss, and CSF tau in DIAD mutation carriers are less in Val66 homozygotes. The BDNF Val66Met polymorphism should be considered as a potential moderator of clinical trial outcomes in current treatment and prevention trials in DIAD and sporadic AD. Ann Neurol 2018;84:424-435.
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Affiliation(s)
- Yen Ying Lim
- The Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia
| | - Jason Hassenstab
- Department of Neurology, Washington University in St Louis, St Louis, MO
| | - Alison Goate
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Anne M Fagan
- Department of Neurology, Washington University in St Louis, St Louis, MO
| | | | - Carlos Cruchaga
- Department of Psychiatry, Washington University in St Louis, St Louis, MO
| | - Eric McDade
- Department of Neurology, Washington University in St Louis, St Louis, MO
| | - Jasmeer Chhatwal
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA.,Center for Alzheimer Research and Treatment, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Johannes Levin
- Department of Neurology, University of Munich, Munich, Germany
| | - Martin R Farlow
- Department of Neurology, Indiana University School of Medicine, Indianapolis, IN
| | | | - Christoph Laske
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany.,Section for Dementia Research, Department of Cellular Neurology, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Colin L Masters
- The Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia
| | - Stephen Salloway
- Department of Neurology, Warren Alpert Medical School of Brown University, Providence, RI
| | - Peter Schofield
- Neuroscience Research Australia, Sydney, NSW, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - John C Morris
- Department of Neurology, Washington University in St Louis, St Louis, MO
| | - Paul Maruff
- The Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia.,Cogstate Ltd, Melbourne, Victoria, Australia
| | - Randall J Bateman
- Department of Neurology, Washington University in St Louis, St Louis, MO
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Velazquez R, Ferreira E, Tran A, Turner EC, Belfiore R, Branca C, Oddo S. Acute tau knockdown in the hippocampus of adult mice causes learning and memory deficits. Aging Cell 2018; 17:e12775. [PMID: 29749079 PMCID: PMC6052471 DOI: 10.1111/acel.12775] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2018] [Indexed: 01/08/2023] Open
Abstract
Misfolded and hyperphosphorylated tau accumulates in several neurodegenerative disorders including Alzheimer's disease, frontotemporal dementia with Parkinsonism, corticobasal degeneration, progressive supranuclear palsy, Down syndrome, and Pick's disease. Tau is a microtubule-binding protein, and its role in microtubule stabilization is well defined. In contrast, while growing evidence suggests that tau is also involved in synaptic physiology, a complete assessment of tau function in the adult brain has been hampered by robust developmental compensation of other microtubule-binding proteins in tau knockout mice. To circumvent these developmental compensations and assess the role of tau in the adult brain, we generated an adeno-associated virus (AAV) expressing a doxycycline-inducible short-hairpin (Sh) RNA targeted to tau, herein referred to as AAV-ShRNATau. We performed bilateral stereotaxic injections in 7-month-old C57Bl6/SJL wild-type mice with either the AAV-ShRNATau or a control AAV. We found that acute knockdown of tau in the adult hippocampus significantly impaired motor coordination and spatial memory. Blocking the expression of the AAV-ShRNATau, thereby allowing tau levels to return to control levels, restored motor coordination and spatial memory. Mechanistically, the reduced tau levels were associated with lower BDNF levels, reduced levels of synaptic proteins associated with learning, and decreased spine density. We provide compelling evidence that tau is necessary for motor and cognitive function in the adult brain, thereby firmly supporting that tau loss-of-function may contribute to the clinical manifestations of many tauopathies. These findings have profound clinical implications given that anti-tau therapies are in clinical trials for Alzheimer's disease.
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Affiliation(s)
- Ramon Velazquez
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Eric Ferreira
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - An Tran
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Emily C. Turner
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Ramona Belfiore
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Caterina Branca
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Salvatore Oddo
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
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Kapadia M, Mian MF, Michalski B, Azam AB, Ma D, Salwierz P, Christopher A, Rosa E, Zovkic IB, Forsythe P, Fahnestock M, Sakic B. Sex-Dependent Differences in Spontaneous Autoimmunity in Adult 3xTg-AD Mice. J Alzheimers Dis 2018; 63:1191-1205. [DOI: 10.3233/jad-170779] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Minesh Kapadia
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
| | - M. Firoz Mian
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Bernadeta Michalski
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Amber B. Azam
- Department of Psychology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Donglai Ma
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Patrick Salwierz
- Biochemistry and Bachelor of Health Sciences Undergraduate programs, McMaster University, Hamilton, ON, Canada
| | - Adam Christopher
- Biochemistry and Bachelor of Health Sciences Undergraduate programs, McMaster University, Hamilton, ON, Canada
| | - Elyse Rosa
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Iva B. Zovkic
- Department of Psychology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Paul Forsythe
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Margaret Fahnestock
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Boris Sakic
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
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GPR30 activation improves memory and facilitates DHPG-induced LTD in the hippocampal CA3 of middle-aged mice. Neurobiol Learn Mem 2018; 149:10-19. [DOI: 10.1016/j.nlm.2018.02.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/05/2018] [Accepted: 02/04/2018] [Indexed: 11/30/2022]
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Zhang J, Liu Z, Pei Y, Yang W, Xie C, Long S. RETRACTED ARTICLE: MicroRNA-322 Cluster Promotes Tau Phosphorylation via Targeting Brain-Derived Neurotrophic Factor. Neurochem Res 2018; 43:736-744. [DOI: 10.1007/s11064-018-2475-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 01/09/2018] [Accepted: 01/15/2018] [Indexed: 12/21/2022]
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Postu PA, Noumedem JAK, Cioanca O, Hancianu M, Mihasan M, Ciorpac M, Gorgan DL, Petre BA, Hritcu L. Lactuca capensis reverses memory deficits in Aβ1-42-induced an animal model of Alzheimer's disease. J Cell Mol Med 2017; 22:111-122. [PMID: 28816008 PMCID: PMC5742732 DOI: 10.1111/jcmm.13299] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/03/2017] [Indexed: 11/29/2022] Open
Abstract
We investigated the neuropharmacological effects of the methanolic extract from Lactuca capensis Thunb. leaves (100 and 200 mg/kg) for 21 days on memory impairment in an Alzheimer's disease (AD) rat model produced by direct intraventricular delivery of amyloid‐β1‐42 (Aβ1‐42). Behavioural assays such as Y‐maze and radial arm maze test were used for assessing memory performance. Aβ1‐42 decreased cognitive performance in the behavioural tests which were ameliorated by pre‐treatment with the methanolic extract. Acetylcholinesterase activity and oxidant–antioxidant balance in the rat hippocampus were abnormally altered by Aβ1‐42 treatment while these deficits were recovered by pre‐treatment with the methanolic extract. In addition, rats were given Aβ1‐42 exhibited in the hippocampus decreased brain‐derived neurotrophic factor (BDNF) mRNA copy number and increased IL‐1β mRNA copy number which was reversed by the methanolic extract administration. These findings suggest that the methanolic extract could be a potent neuropharmacological agent against dementia via modulating cholinergic activity, increasing of BDNF levels and promoting antioxidant action in the rat hippocampus.
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Affiliation(s)
| | - Jaures A K Noumedem
- Pôle Recherche Innovation et Entrepreneuriat (PRIE), Institut Universitaire de la Côte, Douala, Cameroon
| | - Oana Cioanca
- Faculty of Pharmacy, University of Medicine and Pharmacy 'Gr. T. Popa', Iasi, Romania
| | - Monica Hancianu
- Faculty of Pharmacy, University of Medicine and Pharmacy 'Gr. T. Popa', Iasi, Romania
| | - Marius Mihasan
- Department of Biology, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
| | - Mitica Ciorpac
- Department of Biology, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
| | | | | | - Lucian Hritcu
- Department of Biology, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
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