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Alzheimer inflammation

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https://www.readbyqxmd.com/read/29036814/curcumin-ameliorates-neuroinflammation-neurodegeneration-and-memory-deficits-in-p25-transgenic-mouse-model-that-bears-hallmarks-of-alzheimer-s-disease
#1
Jeyapriya Raja Sundaram, Charlene Priscilla Poore, Noor Hazim Bin Sulaimee, Tej Pareek, Wei Fun Cheong, Markus R Wenk, Harish C Pant, Sally A Frautschy, Chian-Ming Low, Sashi Kesavapany
Several studies have indicated that neuroinflammation is indeed associated with neurodegenerative disease pathology. However, failures of recent clinical trials of anti-inflammatory agents in neurodegenerative disorders have emphasized the need to better understand the complexity of the neuroinflammatory process in order to unravel its link with neurodegeneration. Deregulation of Cyclin-dependent kinase 5 (Cdk5) activity by production of its hyperactivator p25 is involved in the formation of tau and amyloid pathology reminiscent of Alzheimer's disease (AD)...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29034183/alzheimer-disease-clues-from-traditional-and-complementary-medicine
#2
REVIEW
Edwin L Cooper, Melissa J Ma
Despite modern medicine's incredible innovation and resulting accumulation of valuable knowledge, many of the world's most problematic diseases such as Alzheimer Disease (AD) still lack effective cures and treatments. Western medicine has revealed many genetic, cellular, and molecular processes that characterize AD such as protein aggregation and inflammation. As the need for novel and effective treatments increases, researchers have turned towards traditional medicine as a resource. Modern, evidence based research examining traditional and complementary remedies for AD has generated promising results within the last decade...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29032150/functional-analysis-of-schizophrenia-genes-using-geneanalytics-program-and-integrated-databases
#3
Tharani Sundararajan, Ann M Manzardo, Merlin G Butler
Schizophrenia (SCZ) is a chronic debilitating neuropsychiatric disorder with multiple risk factors involving numerous complex genetic influences. We examined and updated a master list of clinically relevant and susceptibility genes associated with SCZ reported in the literature and genomic databases dedicated to gene discovery for characterization of SCZ genes. We used the commercially available GeneAnalytics computer-based gene analysis program and integrated genomic databases to create a molecular profile of the updated list of 608 SCZ genes to model their impact in select categories (tissues and cells, diseases, pathways, biological processes, molecular functions, phenotypes and compounds) using specialized GeneAnalytics algorithms...
October 12, 2017: Gene
https://www.readbyqxmd.com/read/29022894/adiponectin-controls-the-apoptosis-and-the-expression-of-tight-junction-proteins-in-brain-endothelial-cells-through-adipor1-under-beta-amyloid-toxicity
#4
Juhyun Song, Seong-Min Choi, Daniel J Whitcomb, Byeong C Kim
Alzheimer's disease (AD) is the most common neurodegenerative disease, characterized by excessive beta amyloid (Aβ) deposition in brain, leading to blood-brain barrier (BBB) disruption. The mechanisms of BBB disruption in AD are still unclear, despite considerable research. The adipokine adiponectin is known to regulate various metabolic functions and reduce inflammation. Though adiponectin receptors have been reported in the brain, its role in the central nervous system has not been fully characterized. In the present study, we investigate whether adiponectin contributes to the tight junction integrity and cell death of brain endothelial cells under Aβ-induced toxicity conditions...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29017893/chronic-inflammation-inflammaging-in-the-ageing-cochlea-a-novel-target-for-future-presbycusis-therapy
#5
Nathan Watson, Bo Ding, Xiaoxia Zhu, Robert D Frisina
Chronic, low-grade inflammation, or inflammaging, is a crucial contributor to various age-related pathologies and natural processes in aging tissue, including the nervous system. Over the past two decades, much effort has been done to understand the mechanisms of inflammaging in disease models such as type II diabetes, cardiovascular disease, Alzheimer's disease, Parkinson's disease, and others. However, despite being the most prevalent neurodegenerative disorder, the number one communication disorder, and one of the top three chronic medical conditions of our aged population; little research has been conducted on the potential role of inflammation in age-related hearing loss (ARHL)...
October 7, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28993728/age-drives-distortion-of-brain-metabolic-vascular-and-cognitive-functions-and-the-gut-microbiome
#6
Jared D Hoffman, Ishita Parikh, Stefan J Green, George Chlipala, Robert P Mohney, Mignon Keaton, Bjoern Bauer, Anika M S Hartz, Ai-Ling Lin
Advancing age is the top risk factor for the development of neurodegenerative disorders, including Alzheimer's disease (AD). However, the contribution of aging processes to AD etiology remains unclear. Emerging evidence shows that reduced brain metabolic and vascular functions occur decades before the onset of cognitive impairments, and these reductions are highly associated with low-grade, chronic inflammation developed in the brain over time. Interestingly, recent findings suggest that the gut microbiota may also play a critical role in modulating immune responses in the brain via the brain-gut axis...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28991528/protosappanin-a-exerts-anti-neuroinflammatory-effect-by-inhibiting-jak2-stat3-pathway-in-lipopolysaccharide-induced-bv2-microglia
#7
Li-Chao Wang, Li-Xi Liao, Ming-Bo Zhao, Xin Dong, Ke-Wu Zeng, Peng-Fei Tu
Microglial activation and resultant neuroinflammatory response are implicated in various brain diseases including Alzheimer's disease and Parkinson's disease. Treatment with anti-neuroinflammatory agents could provide therapeutic benefits for such disorders. Protosappanin A (PTA) is a major bioactive ingredient isolated from Caesalpinia sappan L.. In this work, the anti-neuroinflammatory effects of PTA on LPS-stimulated BV2 cells were investigated and the underlying mechanisms were explored. Results showed that PTA significantly inhibited the production of TNF-α and IL-1β in LPS-activated BV2 microglia...
September 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28989083/resveratrol-activation-of-ampk-dependent-pathways-is-neuroprotective-in-human-neural-stem-cells-against-amyloid-beta-induced-inflammation-and-oxidative-stress
#8
Ming-Chang Chiang, Christopher J Nicol, Yi-Chuan Cheng
Alzheimer's disease (AD) is a neurodegenerative disorder with progressive memory loss resulting in dementia. Amyloid-beta (Aβ) peptides play a critical role in the pathogenesis of this disease, and are thought to promote inflammation and oxidative stress leading to neurodegeneration in the neocortex and hippocampus of the AD brains. AMP-activated protein kinase (AMPK) is a master regulator of cellular energy homeostasis, and cell survival in response to inflammation and oxidative stress. However, the neuroprotective mechanisms by which AMPK achieves these beneficial effects in human neural stem cells (hNSCs) exposed to Aβ is still not well understood...
October 5, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28985759/role-of-microglial-amylin-receptors-in-mediating-beta-amyloid-a%C3%AE-induced-inflammation
#9
Wen Fu, Vlatka Vukojevic, Aarti Patel, Rania Soudy, David MacTavish, David Westaway, Kamaljit Kaur, Valeri Goncharuk, Jack Jhamandas
BACKGROUND: Neuroinflammation in the brain consequent to activation of microglia is viewed as an important component of Alzheimer's disease (AD) pathology. Amyloid beta (Aβ) protein is known to activate microglia and unleash an inflammatory cascade that eventually results in neuronal dysfunction and death. In this study, we sought to identify the presence of amylin receptors on human fetal and murine microglia and determine whether Aβ activation of the inflammasome complex and subsequent release of cytokines is mediated through these receptors...
October 6, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28985333/nonhuman-primate-models-of-neurodegenerative-disorders
#10
Marina E Emborg
Alzheimer's (AD), Huntington's (HD), and Parkinson's (PD) disease are age-related neurodegenerative disorders characterized by progressive neuronal cell death. Although each disease has particular pathologies and symptoms, accumulated evidence points to similar mechanisms of neurodegeneration, including inflammation, oxidative stress, and protein aggregation. A significant body of research is ongoing to understand how these pathways affect each other and what ultimately triggers the onset of the disease. Experiments in nonhuman primates (NHPs) account for only 5% of all research in animals...
August 10, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28982335/reduced-serotonin-transporter-levels-and-inflammation-in-the-midbrain-raphe-of-12-month-old-appswe-psen1de9-mice
#11
Athanasios Metaxas, Ramanan Vaitheeswaran, Katrine T Jensen, Camilla Thygesen, Laura Ilkjaer, Sultan Darvesh, Bente Finsen
Background Although mood and sleep disturbances are nearly universal among patients with Alzheimer's disease (AD), brain structures involved in non-cognitive processing remain under characterized in terms of AD pathology. Objectives This study was designed to evaluate hallmarks of AD pathology in the brainstem of the APPswe/PS1dE9 mouse model of familial AD. Methods Fresh-frozen sections from female, 12 month old, transgenic and control B6C3 mice (n=6/genotype) were examined for amyloid burden and neurofibrillary alterations, by using 6E10 immunohistochemistry and the Gallyas silver stain, respectively...
October 4, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28981597/effects-of-cannabidiol-interactions-with-wnt-%C3%AE-catenin-pathway-and-ppar%C3%AE-on-oxidative-stress-and-neuroinflammation-in-alzheimer-s-disease
#12
Alexandre Vallée, Yves Lecarpentier, Rémy Guillevin, Jean-Noël Vallée
Alzheimer's disease (AD) is a neurodegenerative disease, in which the primary etiology remains unknown. AD presents amyloid beta (Aβ) protein aggregation and neurofibrillary plaque deposits. AD shows oxidative stress and chronic inflammation. In AD, canonical Wingless-Int (Wnt)/β-catenin pathway is downregulated, whereas peroxisome proliferator-activated receptor γ (PPARγ) is increased. Downregulation of Wnt/β-catenin, through activation of glycogen synthase kinase-3β (GSK-3β) by Aβ, and inactivation of phosphatidylinositol 3-kinase/Akt signaling involve oxidative stress in AD...
October 1, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28981461/reductive-stress-in-inflammation-associated-diseases-and-the-pro-oxidant-effect-of-antioxidant-agents
#13
REVIEW
Israel Pérez-Torres, Verónica Guarner-Lans, María Esther Rubio-Ruiz
Abstract: Reductive stress (RS) is the counterpart oxidative stress (OS), and can occur in response to conditions that shift the redox balance of important biological redox couples, such as the NAD⁺/NADH, NADP⁺/NADPH, and GSH/GSSG, to a more reducing state. Overexpression of antioxidant enzymatic systems leads to excess reducing equivalents that can deplete reactive oxidative species, driving the cells to RS. A feedback regulation is established in which chronic RS induces OS, which in turn, stimulates again RS...
October 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28978145/krict-9-inhibits-neuroinflammation-amyloidogenesis-and-memory-loss-in-alzheimer-s-disease-models
#14
Do Yeon Lee, Chul Ju Hwang, Ji Yeon Choi, Mi Hee Park, Min Ji Song, Ki Wan Oh, Sang Bae Han, Woo Kyu Park, Hee Yeong Cho, Sung Yun Cho, Hye Byn Park, Min Jong Song, Jin Tae Hong
Alzheimer's disease (AD) is one of the most common forms of dementia and is characterized by neuroinflammation and amyloidogenesis. Here we investigated the effects of KRICT-9 on neuroinflammation and amyloidogenesis in in vitro and in vivo AD models. We found that KRICT-9 decreased lipopolysaccharide (LPS)-induced inflammation in microglial BV-2 cells and astrocytes while reducing nitric oxide generation and expression of inflammatory marker proteins (iNOS and COX-2) as well as APP, BACE1, C99, Iba-1, and GFAP...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28977551/aagmarker-1-0-a-resource-of-serological-autoantigen-biomarkers-for-clinical-diagnosis-and-prognosis-of-various-human-diseases
#15
Jianbo Pan, Sheng Liu, Heng Zhu, Jiang Qian
Autoantibodies are produced to target an individual's own antigens (e.g. proteins). They can trigger autoimmune responses and inflammation, and thus, cause many types of diseases. Many high-throughput autoantibody profiling projects have been reported for unbiased identification of serological autoantigen-based biomarkers. However, a lack of centralized data portal for these published assays has been a major obstacle to further data mining and cross-evaluate the quality of these datasets generated from different diseases...
August 31, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28977138/innate-immunity-and-inflammation-in-alzheimer%C3%A2-s-disease-pathogenesis
#16
EDITORIAL
Leonel Tadao Takada
No abstract text is available yet for this article.
September 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28976776/search-for-alzheimer-s-disease-biomarkers-in-blood-cells-hypotheses-driven-approach
#17
Joanna Wojsiat, Katarzyna Laskowska-Kaszub, Anna Mietelska-Porowska, Urszula Wojda
Current Alzheimer's disease (AD) diagnostics is based on cognitive testing, and detecting amyloid Aβ and τ pathology by brain imaging and assays of cerebrospinal fluid. However, biomarkers identifying complex pathways contributing to pathology are lacking, especially for early AD. Preferably, such biomarkers should be more cost-effective and present in easily available diagnostic tissues, such as blood. Here, we summarize the recent findings of potential early AD molecular diagnostic biomarkers in blood platelets, lymphocytes and erythrocytes...
October 4, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28973950/ripk1-promotes-inflammation-and-%C3%AE-amyloid-accumulation-in-alzheimer-s-disease
#18
David C Rubinsztein
No abstract text is available yet for this article.
October 2, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28971348/cerebral-hypoperfusion-and-other-shared-brain-pathologies-in-ischemic-stroke-and-alzheimer-s-disease
#19
Shuying Dong, Shelly Maniar, Mioara D Manole, Dandan Sun
Newly emerged evidence reveals that ischemic stroke and Alzheimer's disease (AD) share pathophysiological changes in brain tissue including hypoperfusion, oxidative stress, immune exhaustion, and inflammation. A mechanistic link between hypoperfusion and amyloid β accumulation can lead to cell damage as well as to motor and cognitive deficits. This review will discuss decreased cerebral perfusion and other related pathophysiological changes common to both ischemic stroke and AD, such as vascular damages, cerebral blood flow alteration, abnormal expression of amyloid β and tau proteins, as well as behavioral and cognitive deficits...
October 2, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28968497/from-structure-activity-relationships-on-thiazole-derivatives-to-the-in-vivo-evaluation-of-a-new-radiotracer-for-cannabinoid-subtype-2-pet-imaging
#20
Fabien Caillé, Fanny Cacheux, Marie-Anne Peyronneau, Benoît Jego, Emilie Jaumain, Géraldine Pottier, Christoph Ullmer, Uwe Grether, Alexandra Winkeler, Frédéric Dollé, Annelaure Damont, Bertrand Kuhnast
Upregulation of the cannabinoid type 2 receptors (CB2R) unveils inflammation processes of pathological disorders such as cancer, pain or neurodegenerative diseases. Among others, CB2R agonist A-836339 has been labeled with carbon-11 for PET imaging of the CB2R and displayed promising results in a mouse model of Alzheimer's disease. The aim of the present work was to develop fluorinated analogs of A-836339 for labeling with fluorine-18 to design a new PET tracer for CB2R imaging. Seven fluorinated analogs of A-836339 were synthesized in two to three steps and their binding affinities and selectivities for both the human and the mouse CB2R were measured as well as their early ADME profiles...
October 2, 2017: Molecular Pharmaceutics
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