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Gorny N, Kelly MP. Alterations in cyclic nucleotide signaling are implicated in healthy aging and age-related pathologies of the brain. VITAMINS AND HORMONES 2021; 115:265-316. [PMID: 33706951 DOI: 10.1016/bs.vh.2020.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
It is not only important to consider how hormones may change with age, but also how downstream signaling pathways that couple to hormone receptors may change. Among these hormone-coupled signaling pathways are the 3',5'-cyclic guanosine monophosphate (cGMP) and 3',5'-cyclic adenosine monophosphate (cAMP) intracellular second messenger cascades. Here, we test the hypothesis that dysfunction of cAMP and/or cGMP synthesis, execution, and/or degradation occurs in the brain during healthy and pathological diseases such as Alzheimer's disease, Parkinson's disease, and Huntington's disease. Although most studies report lower cyclic nucleotide signaling in the aged brain, with further reductions noted in the context of age-related diseases, there are select examples where cAMP signaling may be elevated in select tissues. Thus, therapeutics would need to target cAMP/cGMP in a tissue-specific manner if efficacy for select symptoms is to be achieved without worsening others.
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Affiliation(s)
- Nicole Gorny
- Department of Anatomy & Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Michy P Kelly
- Department of Anatomy & Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States.
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Liu Y, Tang W, Ji C, Gu J, Chen Y, Huang J, Zhao X, Sun Y, Wang C, Guan W, Liu J, Jiang B. The Selective SIK2 Inhibitor ARN-3236 Produces Strong Antidepressant-Like Efficacy in Mice via the Hippocampal CRTC1-CREB-BDNF Pathway. Front Pharmacol 2021; 11:624429. [PMID: 33519490 PMCID: PMC7840484 DOI: 10.3389/fphar.2020.624429] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/04/2020] [Indexed: 12/20/2022] Open
Abstract
Depression is a widespread chronic medical illness affecting thoughts, mood, and physical health. However, the limited and delayed therapeutic efficacy of monoaminergic drugs has led to intensive research efforts to develop novel antidepressants. ARN-3236 is the first potent and selective inhibitor of salt-inducible kinase 2 (SIK2). In this study, a multidisciplinary approach was used to explore the antidepressant-like actions of ARN-3236 in mice. Chronic social defeat stress (CSDS) and chronic unpredictable mild stress (CUMS) models of depression, various behavioral tests, high performance liquid chromatography-tandem mass spectrometry, stereotactic infusion, viral-mediated gene transfer, western blotting, co-immunoprecipitation and immunofluorescence were used together. It was found that ARN-3236 could penetrate the blood-brain barrier. Repeated ARN-3236 administration induced significant antidepressant-like effects in both the CSDS and CUMS models of depression, accompanied with fully preventing the stress-enhanced SIK2 expression and cytoplasmic translocation of cyclic adenosine monophosphate response element binding protein (CREB)-regulated transcription coactivator 1 (CRTC1) in the hippocampus. ARN-3236 treatment also completely reversed the down-regulating effects of CSDS and CUMS on the hippocampal brain-derived neurotrophic factor (BDNF) system and neurogenesis. Moreover, we demonstrated that the hippocampal CRTC1-CREB-BDNF pathway mediated the antidepressant-like efficacy of ARN-3236. Collectively, ARN-3236 possesses strong protecting effects against chronic stress, and could be a novel antidepressant beyond monoaminergic drugs.
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Affiliation(s)
- Yue Liu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
| | - Wenqian Tang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
| | - Chunhui Ji
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
| | - Jianghong Gu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
| | - Yanmei Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
| | - Jie Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
| | - Xinyi Zhao
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Yingfang Sun
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Chengniu Wang
- Basic Medical Research Centre, Medical College, Nantong University, Nantong, China
| | - Wei Guan
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
| | - Jianfeng Liu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Bo Jiang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China.,Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, China
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Wang X, Zheng W. Ca 2+ homeostasis dysregulation in Alzheimer's disease: a focus on plasma membrane and cell organelles. FASEB J 2019; 33:6697-6712. [PMID: 30848934 DOI: 10.1096/fj.201801751r] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Emerging evidence indicates that Ca2+ is a vital factor in modulating the pathogenesis of Alzheimer's disease (AD). In healthy neurons, Ca2+ concentration is balanced to maintain a lower level in the cytosol than in the extracellular space or certain intracellular compartments such as endoplasmic reticulum (ER) and the lysosome, whereas this homeostasis is broken in AD. On the plasma membrane, the AD hallmarks amyloid-β (Aβ) and tau interact with ligand-gated or voltage-gated Ca2+-influx channels and inhibit the Ca2+-efflux ATPase or exchangers, leading to an elevated intracellular Ca2+ level and disrupted Ca2+ signal. In the ER, the disabled presenilin "Ca2+ leak" function and the direct implications of Aβ and presenilin mutants contribute to Ca2+-signal disorder. The enhanced ryanodine receptor (RyR)-mediated and inositol 1,4,5-trisphosphate receptor (IP3R)-mediated Ca2+ release from the ER aggravates cytosolic Ca2+ disorder and triggers apoptosis; the down-regulated ER Ca2+ sensor, stromal interaction molecule (STIM), alleviates store-operated Ca2+ entry in plasma membrane, leading to spine loss. The increased transfer of Ca2+ from ER to mitochondria through mitochondria-associated ER membrane (MAM) causes Ca2+ overload in the mitochondrial matrix and consequently opens the cellular damage-related channel, mitochondrial permeability transition pore (mPTP). In this review, we discuss the effects of Aβ, tau and presenilin on neuronal Ca2+ signal, focusing on the receptors and regulators in plasma membrane and ER; we briefly introduce the involvement of MAM-mediated Ca2+ transfer and mPTP opening in AD pathogenesis.-Wang, X., Zheng, W. Ca2+ homeostasis dysregulation in Alzheimer's disease: a focus on plasma membrane and cell organelles.
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Affiliation(s)
- Xingjian Wang
- Department of Histology and Embryology, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Wei Zheng
- Department of Histology and Embryology, College of Basic Medical Science, China Medical University, Shenyang, China
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Corbett BF, You JC, Zhang X, Pyfer MS, Tosi U, Iascone DM, Petrof I, Hazra A, Fu CH, Stephens GS, Ashok AA, Aschmies S, Zhao L, Nestler EJ, Chin J. ΔFosB Regulates Gene Expression and Cognitive Dysfunction in a Mouse Model of Alzheimer's Disease. Cell Rep 2018; 20:344-355. [PMID: 28700937 DOI: 10.1016/j.celrep.2017.06.040] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 03/15/2017] [Accepted: 06/15/2017] [Indexed: 12/12/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by cognitive decline and 5- to 10-fold increased seizure incidence. How seizures contribute to cognitive decline in AD or other disorders is unclear. We show that spontaneous seizures increase expression of ΔFosB, a highly stable Fos-family transcription factor, in the hippocampus of an AD mouse model. ΔFosB suppressed expression of the immediate early gene c-Fos, which is critical for plasticity and cognition, by binding its promoter and triggering histone deacetylation. Acute histone deacetylase (HDAC) inhibition or inhibition of ΔFosB activity restored c-Fos induction and improved cognition in AD mice. Administration of seizure-inducing agents to nontransgenic mice also resulted in ΔFosB-mediated suppression of c-Fos, suggesting that this mechanism is not confined to AD mice. These results explain observations that c-Fos expression increases after acute neuronal activity but decreases with chronic activity. Moreover, these results indicate a general mechanism by which seizures contribute to persistent cognitive deficits, even during seizure-free periods.
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Affiliation(s)
- Brian F Corbett
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Jason C You
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Xiaohong Zhang
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Mark S Pyfer
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Umberto Tosi
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Daniel M Iascone
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Iraklis Petrof
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Anupam Hazra
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Chia-Hsuan Fu
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA; Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Gabriel S Stephens
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Annie A Ashok
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Suzan Aschmies
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Lijuan Zhao
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Eric J Nestler
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jeannie Chin
- Department of Neuroscience and Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA; Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA.
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AD-Related N-Terminal Truncated Tau Is Sufficient to Recapitulate In Vivo the Early Perturbations of Human Neuropathology: Implications for Immunotherapy. Mol Neurobiol 2018; 55:8124-8153. [PMID: 29508283 DOI: 10.1007/s12035-018-0974-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 02/19/2018] [Indexed: 01/08/2023]
Abstract
The NH2tau 26-44 aa (i.e., NH2htau) is the minimal biologically active moiety of longer 20-22-kDa NH2-truncated form of human tau-a neurotoxic fragment mapping between 26 and 230 amino acids of full-length protein (htau40)-which is detectable in presynaptic terminals and peripheral CSF from patients suffering from AD and other non-AD neurodegenerative diseases. Nevertheless, whether its exogenous administration in healthy nontransgenic mice is able to elicit a neuropathological phenotype resembling human tauopathies has not been yet investigated. We explored the in vivo effects evoked by subchronic intracerebroventricular (i.c.v.) infusion of NH2htau or its reverse counterpart into two lines of young (2-month-old) wild-type mice (C57BL/6 and B6SJL). Six days after its accumulation into hippocampal parenchyma, significant impairment in memory/learning performance was detected in NH2htau-treated group in association with reduced synaptic connectivity and neuroinflammatory response. Compromised short-term plasticity in paired-pulse facilitation paradigm (PPF) was detected in the CA3/CA1 synapses from NH2htau-impaired animals along with downregulation in calcineurin (CaN)-stimulated pCREB/c-Fos pathway(s). Importantly, these behavioral, synaptotoxic, and neuropathological effects were independent from the genetic background, occurred prior to frank neuronal loss, and were specific because no alterations were detected in the control group infused with its reverse counterpart. Finally, a 2.0-kDa peptide which biochemically and immunologically resembles the injected NH2htau was endogenously detected in vivo, being present in hippocampal synaptosomal preparations from AD subjects. Given that the identification of the neurotoxic tau species is mandatory to develop a more effective tau-based immunological approach, our evidence can have important translational implications for cure of human tauopathies.
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Kelly MP. Cyclic nucleotide signaling changes associated with normal aging and age-related diseases of the brain. Cell Signal 2018; 42:281-291. [PMID: 29175000 PMCID: PMC5732030 DOI: 10.1016/j.cellsig.2017.11.004] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/21/2017] [Indexed: 01/23/2023]
Abstract
Deficits in brain function that are associated with aging and age-related diseases benefit very little from currently available therapies, suggesting a better understanding of the underlying molecular mechanisms is needed to develop improved drugs. Here, we review the literature to test the hypothesis that a break down in cyclic nucleotide signaling at the level of synthesis, execution, and/or degradation may contribute to these deficits. A number of findings have been reported in both the human and animal model literature that point to brain region-specific changes in Galphas (a.k.a. Gαs or Gsα), adenylyl cyclase, 3',5'-adenosine monophosphate (cAMP) levels, protein kinase A (PKA), cAMP response element binding protein (CREB), exchange protein activated by cAMP (Epac), hyperpolarization-activated cyclic nucleotide-gated ion channels (HCNs), atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), soluble and particulate guanylyl cyclase, 3',5'-guanosine monophosphate (cGMP), protein kinase G (PKG) and phosphodiesterases (PDEs). Among the most reproducible findings are 1) elevated circulating ANP and BNP levels being associated with cognitive dysfunction or dementia independent of cardiovascular effects, 2) reduced basal and/or NMDA-stimulated cGMP levels in brain with aging or Alzheimer's disease (AD), 3) reduced adenylyl cyclase activity in hippocampus and specific cortical regions with aging or AD, 4) reduced expression/activity of PKA in temporal cortex and hippocampus with AD, 5) reduced phosphorylation of CREB in hippocampus with aging or AD, 6) reduced expression/activity of the PDE4 family in brain with aging, 7) reduced expression of PDE10A in the striatum with Huntington's disease (HD) or Parkinson's disease, and 8) beneficial effects of select PDE inhibitors, particularly PDE10 inhibitors in HD models and PDE4 and PDE5 inhibitors in aging and AD models. Although these findings generally point to a reduction in cyclic nucleotide signaling being associated with aging and age-related diseases, there are exceptions. In particular, there is evidence for increased cAMP signaling specifically in aged prefrontal cortex, AD cerebral vessels, and PD hippocampus. Thus, if cyclic nucleotide signaling is going to be targeted effectively for therapeutic gain, it will have to be manipulated in a brain region-specific manner.
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Affiliation(s)
- Michy P Kelly
- Department of Pharmacology, Physiology & Neuroscience, University of South Carolina School of Medicine, 6439 Garners Ferry Road, VA Bldg 1, 3rd Floor, D-12, Columbia, SC 29209, United States.
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Palomino-Alonso M, Lachén-Montes M, González-Morales A, Ausín K, Pérez-Mediavilla A, Fernández-Irigoyen J, Santamaría E. Network-Driven Proteogenomics Unveils an Aging-Related Imbalance in the Olfactory IκBα-NFκB p65 Complex Functionality in Tg2576 Alzheimer's Disease Mouse Model. Int J Mol Sci 2017; 18:ijms18112260. [PMID: 29077059 PMCID: PMC5713230 DOI: 10.3390/ijms18112260] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/23/2017] [Accepted: 10/25/2017] [Indexed: 01/12/2023] Open
Abstract
Olfaction is often deregulated in Alzheimer’s disease (AD) patients, and is also impaired in transgenic Tg2576 AD mice, which overexpress the Swedish mutated form of human amyloid precursor protein (APP). However, little is known about the molecular mechanisms that accompany the neurodegeneration of olfactory structures in aged Tg2576 mice. For that, we have applied proteome- and transcriptome-wide approaches to probe molecular disturbances in the olfactory bulb (OB) dissected from aged Tg2576 mice (18 months of age) as compared to those of age matched wild-type (WT) littermates. Some over-represented biological functions were directly relevant to neuronal homeostasis and processes of learning, cognition, and behavior. In addition to the modulation of CAMP responsive element binding protein 1 (CREB1) and APP interactomes, an imbalance in the functionality of the IκBα-NFκB p65 complex was observed during the aging process in the OB of Tg2576 mice. At two months of age, the phosphorylated isoforms of olfactory IκBα and NFκB p65 were inversely regulated in transgenic mice. However, both phosphorylated proteins were increased at 6 months of age, while a specific drop in IκBα levels was detected in 18-month-old Tg2576 mice, suggesting a transient activation of NFκB in the OB of Tg2576 mice. Taken together, our data provide a metabolic map of olfactory alterations in aged Tg2576 mice, reflecting the progressive effect of APP overproduction and β-amyloid (Aβ) accumulation on the OB homeostasis in aged stages.
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Affiliation(s)
- Maialen Palomino-Alonso
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
| | - Mercedes Lachén-Montes
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), Navarra Institute for Health Research, 31008 Pamplona, Spain.
| | - Andrea González-Morales
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), Navarra Institute for Health Research, 31008 Pamplona, Spain.
| | - Karina Ausín
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), Navarra Institute for Health Research, 31008 Pamplona, Spain.
| | - Alberto Pérez-Mediavilla
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), Navarra Institute for Health Research, 31008 Pamplona, Spain.
- Neurobiology of Alzheimer's Disease, Neurosciences Division, Center for Applied Medical Research (CIMA), Department of Biochemistry, University of Navarra, 31008 Pamplona, Spain.
| | - Joaquín Fernández-Irigoyen
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), Navarra Institute for Health Research, 31008 Pamplona, Spain.
| | - Enrique Santamaría
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, 31008 Pamplona, Spain.
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), Navarra Institute for Health Research, 31008 Pamplona, Spain.
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Yan D, Jin C, Cao Y, Wang L, Lu X, Yang J, Wu S, Cai Y. Effects of Aluminium on Long-Term Memory in Rats and on SIRT1 Mediating the Transcription of CREB-Dependent Gene in Hippocampus. Basic Clin Pharmacol Toxicol 2017; 121:342-352. [PMID: 28429887 DOI: 10.1111/bcpt.12798] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 04/08/2017] [Indexed: 12/22/2022]
Abstract
Epidemiological investigations have shown that aluminium (Al) is an important neurotoxicant which can be absorbed by organisms via various routes. Previous studies have confirmed that exposure to Al could cause neurodegenerative diseases, decline CREB phosphorylation and then down-regulate the transcription and protein expression of its target genes including BDNF. However, recent studies revealed that CREB activation alone was far from enough to activate the expression of long-term memory (LTM)-related genes; there might be other regulatory factors involved in this process. Several studies showed that TORC1 might be involved in regulating the transcription of downstream target genes as well. Also, TORC1 could be mediated by SIRT1 during the formation of LTM. However, the role of CREB regulating system in Al-induced LTM impairment was still not utterly elucidated till now. This study was designed to establish the rat model of subchronic Al exposure to observe the neuroethology, regulatory factor levels and molecular biological alterations in hippocampal cells. The results showed that, with the increasing AlCl3 dose, blood Al content increased gradually; morphology of the hippocampus and neuronal ultrastructure were aberrant; in the Morris water maze test, the escape latency and distance travelled became longer, swimming traces turned more complicated in the place navigation test; intracellular Ca2+ , cAMP levels declined significantly in AlCl3 -treated rats, followed by abated nuclear translocation of TORC1 and decreased SIRT1, TORC1 and pCREB levels. These results indicate that SIRT1 and TORC1 might play an important mediating role in Al-induced LTM impairment.
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Affiliation(s)
- Dongying Yan
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
- Jinzhou Medical University, Section III, Linghe District, Jinzhou, China
| | - Cuihong Jin
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Yang Cao
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Lulu Wang
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Xiaobo Lu
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Jinghua Yang
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Shengwen Wu
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
| | - Yuan Cai
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
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9
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Lachen-Montes M, Zelaya MV, Segura V, Fernández-Irigoyen J, Santamaría E. Progressive modulation of the human olfactory bulb transcriptome during Alzheimer´s disease evolution: novel insights into the olfactory signaling across proteinopathies. Oncotarget 2017; 8:69663-69679. [PMID: 29050232 PMCID: PMC5642507 DOI: 10.18632/oncotarget.18193] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 05/07/2017] [Indexed: 01/01/2023] Open
Abstract
Alzheimer´s disease (AD) is characterized by progressive dementia, initially presenting olfactory dysfunction. Despite the olfactory bulb (OB) is the first central structure of the olfactory pathway, we lack a complete molecular characterization of the transcriptional events that occurs in this olfactory area during AD progression. To address this gap in knowledge, we have assessed the genome-wide expression in postmortem OBs from subjects with varying degree of AD pathology. A stage-dependent deregulation of specific pathways was observed, revealing transmembrane transport, and neuroinflammation as part of the functional modules that are disrupted across AD grading. Potential drivers of neurodegeneration predicted by network-driven transcriptomics were monitored across different types of dementia, including progressive supranuclear palsy (PSP), mixed dementia, and frontotemporal lobar degeneration (FTLD). Epidermal growth factor receptor (EGFR) expression was significantly increased in the OB of AD and mixed dementia subjects. Moreover, a significant increment in the activation of signal transducer and activator of transcription 3 (STAT3) was exclusively detected in advanced AD stages, whereas total STAT3 levels were specifically overexpressed in mixed dementia. Furthermore, transcription factors deregulated in the OB of mixed dementia subjects such as cAMP Responsive Element Binding Protein 1 (CREB1) and AP-1 Transcription Factor Subunit (c-Jun) were not differentially modulated at olfactory level across AD grading. On the other hand, olfactory expression of this signal transducer panel was unchanged in PSP and FTLD subjects. Taken together, this study unveils cross-disease similarities and differences for specific signal transducers, providing mechanistic clues to the intriguing divergence of AD pathology across proteinopathies.
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Affiliation(s)
- Mercedes Lachen-Montes
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, Pamplona, Spain.,IDISNA, Navarra Institute for Health Research, Pamplona, Spain
| | - María Victoria Zelaya
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, Pamplona, Spain.,IDISNA, Navarra Institute for Health Research, Pamplona, Spain.,Pathological Anatomy Department, Navarra Hospital Complex, Pamplona, Spain
| | - Víctor Segura
- IDISNA, Navarra Institute for Health Research, Pamplona, Spain.,Bioinformatics Unit, Center for Applied Medical Research, University of Navarra, Pamplona, Spain
| | - Joaquín Fernández-Irigoyen
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, Pamplona, Spain.,IDISNA, Navarra Institute for Health Research, Pamplona, Spain.,Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, Pamplona, Spain
| | - Enrique Santamaría
- Clinical Neuroproteomics Group, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, Pamplona, Spain.,IDISNA, Navarra Institute for Health Research, Pamplona, Spain.,Proteored-ISCIII, Proteomics Unit, Navarrabiomed, Departamento de Salud, Universidad Pública de Navarra, Pamplona, Spain
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10
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Mendioroz M, Celarain N, Altuna M, Sánchez-Ruiz de Gordoa J, Zelaya MV, Roldán M, Rubio I, Larumbe R, Erro ME, Méndez I, Echávarri C. CRTC1 gene is differentially methylated in the human hippocampus in Alzheimer's disease. ALZHEIMERS RESEARCH & THERAPY 2016; 8:15. [PMID: 27094739 PMCID: PMC4837517 DOI: 10.1186/s13195-016-0183-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 04/01/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND CRTC1 (CREB regulated transcription coactivator 1) gene plays a role in synaptic plasticity, learning and long-term memory formation in the hippocampus. Recently, CRTC1 has been shown to be downregulated in Alzheimer's disease (AD). Nevertheless, the mechanisms underlying CRTC1 dysregulation in AD remain unclear. METHODS To understand better the epigenetic mechanisms regulating CRTC1 expression that may be altered in AD, we profiled DNA methylation at CpG site resolution by bisulfite cloning sequencing in two promoter regions (referred to as Prom1 and Prom2) of the CRTC1 gene in human hippocampus from controls and AD cases. Next, we correlated DNA methylation levels with AD-related pathology, i.e., β-amyloid and phosphorylated-tau (p-tau) burden and also measured CRTC1 mRNA levels by RT-qPCR. RESULTS Methylation levels were lower in AD cases as compared to controls within both promoter regions (Prom1: 0.95% vs. 5%, p-value < 0.01 and Prom2: 2.80% vs. 17.80%, p-value < 0.001). Interestingly, CRTC1 methylation levels inversely correlated with AD-related neuropathological changes, particularly with p-tau deposition (rSpearman = -0.903, p < 0.001). Moreover, a 1.54-fold decrease in CRTC1 mRNA levels was observed in hippocampus of AD cases compared to controls (p < 0.05) supporting the notion that CRTC1 is downregulated in the AD hippocampus. CONCLUSIONS DNA methylation levels within two distinct promoter regions of the CRTC1 gene were decreased in human hippocampus affected by AD compared with controls and methylation within Prom1 showed a strong inverse correlation with p-tau deposition. Further studies are guaranteed to elucidate the precise role that CRTC1 methylation plays in AD pathophysiology.
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Affiliation(s)
- Maite Mendioroz
- NeuroEpigenetics Laboratory, Navarrabiomed- IdiSNA (Navarra Institute for Health Research), c/ Irunlarrea, 3, Pamplona, Navarra, 31008, Spain. .,Department of Neurology, Complejo Hospitalario de Navarra- IdiSNA (Navarra Institute for Health Research), Pamplona, Navarra, 31008, Spain.
| | - Naiara Celarain
- NeuroEpigenetics Laboratory, Navarrabiomed- IdiSNA (Navarra Institute for Health Research), c/ Irunlarrea, 3, Pamplona, Navarra, 31008, Spain
| | - Miren Altuna
- Department of Neurology, Complejo Hospitalario de Navarra- IdiSNA (Navarra Institute for Health Research), Pamplona, Navarra, 31008, Spain
| | - Javier Sánchez-Ruiz de Gordoa
- NeuroEpigenetics Laboratory, Navarrabiomed- IdiSNA (Navarra Institute for Health Research), c/ Irunlarrea, 3, Pamplona, Navarra, 31008, Spain.,Department of Neurology, Complejo Hospitalario de Navarra- IdiSNA (Navarra Institute for Health Research), Pamplona, Navarra, 31008, Spain
| | - María Victoria Zelaya
- Department of Pathology, Complejo Hospitalario de Navarra- IdiSNA (Navarra Institute for Health Research), Pamplona, Navarra, 31008, Spain
| | - Miren Roldán
- NeuroEpigenetics Laboratory, Navarrabiomed- IdiSNA (Navarra Institute for Health Research), c/ Irunlarrea, 3, Pamplona, Navarra, 31008, Spain
| | - Idoya Rubio
- Department of Neurology, Complejo Hospitalario de Navarra- IdiSNA (Navarra Institute for Health Research), Pamplona, Navarra, 31008, Spain
| | - Rosa Larumbe
- NeuroEpigenetics Laboratory, Navarrabiomed- IdiSNA (Navarra Institute for Health Research), c/ Irunlarrea, 3, Pamplona, Navarra, 31008, Spain.,Department of Neurology, Complejo Hospitalario de Navarra- IdiSNA (Navarra Institute for Health Research), Pamplona, Navarra, 31008, Spain
| | - María Elena Erro
- Department of Neurology, Complejo Hospitalario de Navarra- IdiSNA (Navarra Institute for Health Research), Pamplona, Navarra, 31008, Spain
| | - Iván Méndez
- NeuroEpigenetics Laboratory, Navarrabiomed- IdiSNA (Navarra Institute for Health Research), c/ Irunlarrea, 3, Pamplona, Navarra, 31008, Spain.,Hospital García-Orcoyen, Estella, Navarra, 31200, Spain
| | - Carmen Echávarri
- NeuroEpigenetics Laboratory, Navarrabiomed- IdiSNA (Navarra Institute for Health Research), c/ Irunlarrea, 3, Pamplona, Navarra, 31008, Spain.,Hospital Psicogeriátrico Josefina Arregui, Alsasua, Navarra, 31800, Spain
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11
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Fermented Sipjeondaebo-tang Alleviates Memory Deficits and Loss of Hippocampal Neurogenesis in Scopolamine-induced Amnesia in Mice. Sci Rep 2016; 6:22405. [PMID: 26939918 PMCID: PMC4778044 DOI: 10.1038/srep22405] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 02/12/2016] [Indexed: 12/15/2022] Open
Abstract
We investigated the anti-amnesic effects of SJ and fermented SJ (FSJ) on scopolamine (SCO)-induced amnesia mouse model. Mice were orally co-treated with SJ or FSJ (125, 250, and 500 mg/kg) and SCO (1 mg/kg), which was injected intraperitoneally for 14 days. SCO decreased the step-through latency and prolonged latency time to find the hidden platform in the passive avoidance test and Morris water maze test, respectively, and both SCO effects were ameliorated by FSJ treatment. FSJ was discovered to promote hippocampal neurogenesis during SCO treatment by increasing proliferation and survival of BrdU-positive cells, immature/mature neurons. In the hippocampus of SCO, oxidative stress and the activity of acetylcholinesterase were elevated, whereas the levels of acetylcholine and choline acetyltransferase were diminished; however, all of these alterations were attenuated by FSJ-treatment. The alterations in brain-derived neurotrophic factor, phosphorylated cAMP response element-binding protein, and phosphorylated Akt that occurred following SCO treatment were protected by FSJ administration. Therefore, our findings are the first to suggest that FSJ may be a promising therapeutic drug for the treatment of amnesia and aging-related or neurodegenerative disease-related memory impairment. Furthermore, the molecular mechanism by which FSJ exerts its effects may involve modulation of the cholinergic system and BDNF/CREB/Akt pathway.
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12
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Lee B, Sur B, Cho SG, Yeom M, Shim I, Lee H, Hahm DH. Effect of Beta-Asarone on Impairment of Spatial Working Memory and Apoptosis in the Hippocampus of Rats Exposed to Chronic Corticosterone Administration. Biomol Ther (Seoul) 2015; 23:571-81. [PMID: 26535083 PMCID: PMC4624074 DOI: 10.4062/biomolther.2015.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 08/11/2015] [Accepted: 08/12/2015] [Indexed: 02/02/2023] Open
Abstract
β-asarone (BAS) is an active component of Acori graminei rhizoma, a traditional medicine used clinically in treating dementia and chronic stress in Korea. However, the cognitive effects of BAS and its mechanism of action have remained elusive. The purpose of this study was to examine whether BAS improved spatial cognitive impairment induced in rats following chronic corticosterone (CORT) administration. CORT administration (40 mg/kg, i.p., 21 days) resulted in cognitive impairment in the avoidance conditioning test (AAT) and the Morris water maze (MWM) test that was reversed by BAS (200 mg/kg, i.p). Additionally, as assessed by immunohistochemistry and RT-PCR analysis, the administration of BAS significantly alleviated memory-associated decreases in the expression levels of brain-derived neurotrophic factor (BDNF) and cAMP-response element-binding protein (CREB) proteins and mRNAs in the hippocampus. Also, BAS administration significantly restored the expression of Bax and Bcl-2 mRNAs in the hippocampus. Thus, BAS may be an effective therapeutic for learning and memory disturbances, and its neuroprotective effect was mediated, in part, by normalizing the CORT response, resulting in regulation of BDNF and CREB functions and anti-apoptosis in rats.
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Affiliation(s)
- Bombi Lee
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
| | - Bongjun Sur
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
| | - Seong-Guk Cho
- The Graduate School of Basic Science of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
| | - Mijung Yeom
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
| | - Insop Shim
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
- The Graduate School of Basic Science of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
| | - Hyejung Lee
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
- The Graduate School of Basic Science of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
| | - Dae-Hyun Hahm
- Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
- The Graduate School of Basic Science of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447,
Republic of Korea
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13
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Ch'ng TH, DeSalvo M, Lin P, Vashisht A, Wohlschlegel JA, Martin KC. Cell biological mechanisms of activity-dependent synapse to nucleus translocation of CRTC1 in neurons. Front Mol Neurosci 2015; 8:48. [PMID: 26388727 PMCID: PMC4560099 DOI: 10.3389/fnmol.2015.00048] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 08/18/2015] [Indexed: 12/27/2022] Open
Abstract
Previous studies have revealed a critical role for CREB-regulated transcriptional coactivator (CRTC1) in regulating neuronal gene expression during learning and memory. CRTC1 localizes to synapses but undergoes activity-dependent nuclear translocation to regulate the transcription of CREB target genes. Here we investigate the long-distance retrograde transport of CRTC1 in hippocampal neurons. We show that local elevations in calcium, triggered by activation of glutamate receptors and L-type voltage-gated calcium channels, initiate active, dynein-mediated retrograde transport of CRTC1 along microtubules. We identify a nuclear localization signal within CRTC1, and characterize three conserved serine residues whose dephosphorylation is required for nuclear import. Domain analysis reveals that the amino-terminal third of CRTC1 contains all of the signals required for regulated nucleocytoplasmic trafficking. We fuse this region to Dendra2 to generate a reporter construct and perform live-cell imaging coupled with local uncaging of glutamate and photoconversion to characterize the dynamics of stimulus-induced retrograde transport and nuclear accumulation.
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Affiliation(s)
- Toh Hean Ch'ng
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore ; School of Biological Sciences, Nanyang Technological University Singapore, Singapore
| | - Martina DeSalvo
- Department of Biological Chemistry, University of California, Los Angeles Los Angeles, CA, USA
| | - Peter Lin
- Department of Neurology and Neuroscience, Stanford University Palo Alto, CA, USA
| | - Ajay Vashisht
- Department of Biological Chemistry, University of California, Los Angeles Los Angeles, CA, USA
| | - James A Wohlschlegel
- Department of Biological Chemistry, University of California, Los Angeles Los Angeles, CA, USA
| | - Kelsey C Martin
- Department of Biological Chemistry, University of California, Los Angeles Los Angeles, CA, USA ; Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles Los Angeles, CA, USA
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14
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Chaalal A, Poirier R, Blum D, Gillet B, Le Blanc P, Basquin M, Buée L, Laroche S, Enderlin V. PTU-induced hypothyroidism in rats leads to several early neuropathological signs of Alzheimer's disease in the hippocampus and spatial memory impairments. Hippocampus 2014; 24:1381-93. [DOI: 10.1002/hipo.22319] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2014] [Indexed: 12/18/2022]
Affiliation(s)
- Amina Chaalal
- Centre de Neurosciences Paris-Sud; CNRS; UMR 8195 F-91405 Orsay France
- Université Paris-Sud; UMR 8195 F-91405 Orsay France
| | - Roseline Poirier
- Centre de Neurosciences Paris-Sud; CNRS; UMR 8195 F-91405 Orsay France
- Université Paris-Sud; UMR 8195 F-91405 Orsay France
| | - David Blum
- Université Lille-Nord de France; UDSL; F-59000 Lille France
- Inserm U837, Centre de recherche Jean-Pierre Aubert; IMPRT; F-59000 Lille France
- CHRU-Lille; F-59000 Lille France
| | - Brigitte Gillet
- Université Paris-Sud; UMR 8195 F-91405 Orsay France
- Imagerie par Résonance Magnétique Médicale et MultiModalité; CNRS-UMR8081 F-91405 Orsay France
| | - Pascale Le Blanc
- Centre de Neurosciences Paris-Sud; CNRS; UMR 8195 F-91405 Orsay France
- Université Paris-Sud; UMR 8195 F-91405 Orsay France
| | - Marie Basquin
- Université Lille-Nord de France; UDSL; F-59000 Lille France
- Inserm U837, Centre de recherche Jean-Pierre Aubert; IMPRT; F-59000 Lille France
| | - Luc Buée
- Université Lille-Nord de France; UDSL; F-59000 Lille France
- Inserm U837, Centre de recherche Jean-Pierre Aubert; IMPRT; F-59000 Lille France
- CHRU-Lille; F-59000 Lille France
| | - Serge Laroche
- Centre de Neurosciences Paris-Sud; CNRS; UMR 8195 F-91405 Orsay France
- Université Paris-Sud; UMR 8195 F-91405 Orsay France
| | - Valérie Enderlin
- Centre de Neurosciences Paris-Sud; CNRS; UMR 8195 F-91405 Orsay France
- Université Paris-Sud; UMR 8195 F-91405 Orsay France
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15
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Lee B, Sur B, Shim I, Lee H, Hahm DH. Baicalin improves chronic corticosterone-induced learning and memory deficits via the enhancement of impaired hippocampal brain-derived neurotrophic factor and cAMP response element-binding protein expression in the rat. J Nat Med 2013; 68:132-43. [DOI: 10.1007/s11418-013-0782-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 05/16/2013] [Indexed: 11/29/2022]
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