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Communication and Alzheimer's disease

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https://www.readbyqxmd.com/read/28100644/multicellular-hypothesis-for-the-pathogenesis-of-alzheimer-s-disease
#1
Edward J Goetzl, Bruce L Miller
Extensive abnormal interactions among microglia, astrocytes, and neurons of the CNS have been observed in proteinopathic neurodegenerative dementias of the elderly. These multicellular interactions are initiated by insoluble tangles of phosphorylated tau protein and plaques of amyloid peptides. Most research has focused on these neurotoxic proteins, but much less is known about the pathogenic roles of the responding resident and recruited neural cells. Principal interactions among the major 3 sets of CNS cells are herein considered at several levels in relation to cellular phenotypic alterations, mechanisms of cellular communication, and extent of involvement in the pathogenesis of Alzheimer's disease and related proteinopathic dementias...
January 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28095582/enhancing-the-admit-me-tool-for-care-transitions-for-individuals-with-alzheimer-s-disease
#2
Janet R Moore, Meghan M Sullivan
One of the goals of the National Plan to Address Alzheimer's Disease is to ensure safe care transitions. To facilitate safe and effective transitions from home to hospital, the ADMIT (Alzheimer's, Dementia, Memory Impaired Transitions) Me tool was developed and three focus groups were conducted with caregivers (n = 6), emergency department nurses (n = 6), and first responders (n = 14) to determine its usefulness and applicability to practice. Feedback was used to enhance the tool to reflect their needs. Each group expressed that the tool would help promote safety in care transitions...
January 17, 2017: Journal of Gerontological Nursing
https://www.readbyqxmd.com/read/28092661/interactions-between-the-microbiota-immune-and-nervous-systems-in-health-and-disease
#3
REVIEW
Thomas C Fung, Christine A Olson, Elaine Y Hsiao
The diverse collection of microorganisms that inhabit the gastrointestinal tract, collectively called the gut microbiota, profoundly influences many aspects of host physiology, including nutrient metabolism, resistance to infection and immune system development. Studies investigating the gut-brain axis demonstrate a critical role for the gut microbiota in orchestrating brain development and behavior, and the immune system is emerging as an important regulator of these interactions. Intestinal microbes modulate the maturation and function of tissue-resident immune cells in the CNS...
January 16, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28074926/disrupted-global-metastability-and-static-and-dynamic-brain-connectivity-across-individuals-in-the-alzheimer-s-disease-continuum
#4
Aldo Córdova-Palomera, Tobias Kaufmann, Karin Persson, Dag Alnæs, Nhat Trung Doan, Torgeir Moberget, Martina Jonette Lund, Maria Lage Barca, Andreas Engvig, Anne Brækhus, Knut Engedal, Ole A Andreassen, Geir Selbæk, Lars T Westlye
As findings on the neuropathological and behavioral components of Alzheimer's disease (AD) continue to accrue, converging evidence suggests that macroscale brain functional disruptions may mediate their association. Recent developments on theoretical neuroscience indicate that instantaneous patterns of brain connectivity and metastability may be a key mechanism in neural communication underlying cognitive performance. However, the potential significance of these patterns across the AD spectrum remains virtually unexplored...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28071980/metabolic-syndrome-hypertension-and-nervous-system-injury-epidemiological-correlates
#5
Giovanna Ricci, Isabel Pirillo, Daniele Tomassoni, Ascanio Sirignano, Iolanda Grappasonni
: Metabolic syndrome (MetS) is a common and complex disorder combining hypertension, obesity, dyslipidemia, and insulin resistance. MetS represents a risk factor for changes in cognitive functions in older age, and several studies have suggested that MetS may be linked to dementia. This article reviews the main evidences about the relationship between MetS and neurodegenerative disease. Starting from an epidemiological point of view, the article analyzes medico-social aspects related to MetS, considering the reduction of work capacity and the condition of disability that it involves...
January 10, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28054371/review-tau-in-biofluids-relation-to-pathology-imaging-and-clinical-features
#6
Henrik Zetterberg
Tau is a microtubule-binding protein that is important for the stability of neuronal axons. It is normally expressed within neurons and is also secreted into the brain interstitial fluid that communicates freely with cerebrospinal fluid (CSF) and, in a more restricted manner, blood via the glymphatic clearance system of the brain. In Alzheimer's disease (AD), neuroaxonal degeneration results in increased release of tau from neurons. Further, tau is truncated and phosphorylated, which leads to aggregation of tau in neurofibrillary tangles of the proximal axoplasm...
January 5, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28039950/ageing-causes-prominent-neurovascular-dysfunction-associated-with-loss-of-astrocytic-contacts-and-gliosis
#7
Jessica Duncombe, Ross J Lennen, Maurits A Jansen, Ian Marshall, Joanna M Wardlaw, Karen Horsburgh
AIMS: Normal neurovascular coupling, mediated by the fine interplay and communication of cells within the neurovascular unit, is critical for maintaining normal brain activity and cognitive function. This study investigated whether, with advancing age there is disruption of neurovascular coupling and specific cellular components of the neurovascular unit, and whether the effects of increasing amyloid (a key feature of Alzheimer's disease) would exacerbate these changes. METHODS: Wild-type mice, in which amyloid deposition is absent, were compared to transgenic APP littermates (TgSwDI) which develop age-dependent increases in amyloid...
December 31, 2016: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28012682/disclosing-genetic-risk-of-alzheimer-s-disease-to-cognitively-impaired-patients-and-visit-companions-findings-from-the-reveal-study
#8
Yue Guan, Debra L Roter, Lori H Erby, Jennifer L Wolff, Laura N Gitlin, J Scott Roberts, Robert C Green, Kurt D Christensen
OBJECTIVE: To describe the impact of genetic information on Alzheimer's disease (AD) risk communication to patients with mild cognitive impairment (MCI) and their visit companions. METHODS: Participants of the fourth REVEAL Study trial were randomized to receive AD risk assessments with or without genotype results. We coded 79 audio recorded risk disclosure sessions with the Roter Interaction Analysis System. Multilevel analyses explored differences in communication when disclosed risks were based on age and MCI diagnosis alone or in addition to APOE genotype status...
December 14, 2016: Patient Education and Counseling
https://www.readbyqxmd.com/read/27999295/special-issue-molecules-against-alzheimer
#9
EDITORIAL
Michael Decker, Diego Muñoz-Torrero
This Special Issue, entitled "Molecules against Alzheimer", gathers a number of original articles, short communications, and review articles on recent research efforts toward the development of novel drug candidates, diagnostic agents and therapeutic approaches for Alzheimer's disease (AD), the most prevalent neurodegenerative disorder and a leading cause of death worldwide. This Special Issue contains many interesting examples describing the design, synthesis, and pharmacological profiling of novel compounds that hit one or several key biological targets, such as cholinesterases, β-amyloid formation or aggregation, monoamine oxidase B, oxidative stress, biometal dyshomeostasis, mitochondrial dysfunction, serotonin and/or melatonin systems, the Wnt/β-catenin pathway, sigma receptors, nicotinamide phosphoribosyltransferase, or nuclear erythroid 2-related factor...
December 16, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27973581/the-role-of-dna-methylation-and-histone-modifications-in-neurodegenerative-diseases-a-systematic-review
#10
Ke-Xin Wen, Jelena Miliç, Bassem El-Khodor, Klodian Dhana, Jana Nano, Tammy Pulido, Bledar Kraja, Asija Zaciragic, Wichor M Bramer, John Troup, Rajiv Chowdhury, M Arfam Ikram, Abbas Dehghan, Taulant Muka, Oscar H Franco
IMPORTANCE: Epigenetic modifications of the genome, such as DNA methylation and histone modifications, have been reported to play a role in neurodegenerative diseases (ND) such as Alzheimer's disease (AD) and Parkinson's disease (PD). OBJECTIVE: To systematically review studies investigating epigenetic marks in AD or PD. METHODS: Eleven bibliographic databases (Embase.com, Medline (Ovid), Web-of-Science, Scopus, PubMed, Cinahl (EBSCOhost), Cochrane Central, ProQuest, Lilacs, Scielo and Google Scholar) were searched until July 11th 2016 to identify relevant articles...
2016: PloS One
https://www.readbyqxmd.com/read/27910252/memory-performance-on-the-story-recall-test-and-prediction-of-cognitive-dysfunction-progression-in-mild-cognitive-impairment-and-alzheimer-s-dementia
#11
Jong-Hwan Park, Hyuntae Park, Sang Wuk Sohn, Sungjae Kim, Kyung Won Park
AIM: To determine the factors that influence diagnosis and differentiation of patients with mild cognitive impairment (MCI) and Alzheimer's dementia (AD) by comparing memory test results at baseline with those at 1-2-year follow up. METHODS: We consecutively recruited 23 healthy participants, 44 MCI patients and 27 patients with very mild AD according to the National Institute of Neurological and Communicative Diseases and Stroke/Alzheimer's Disease and Related Disorder Association criteria for probable Alzheimer's disease and Petersen's clinical diagnostic criteria...
December 1, 2016: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/27904818/the-government-s-role-in-regulating-coordinating-and-standardizing-the-response-to-alzheimer-s-disease-anticipated-international-cooperation-in-the-area-of-intractable-and-rare-diseases
#12
REVIEW
Qi Tang, Peipei Song, Lingzhong Xu
The World Health Organization (WHO) has emphasized that aging of the population is inextricably linked to many other global public health issues, such as universal health coverage, non-communicable diseases, and disability. However, Alzheimer's Disease International (ADI) estimates that 46.8 million elderly people worldwide were living with dementia in 2015. Alzheimer's disease (AD), the most common form of dementia, is one of the most common neurodegenerative diseases and is the main cause of cognitive impairment...
November 2016: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/27903226/protective-effects-of-caffeic-acid-and-the-alzheimer-s-brain-an-update
#13
Solomon Habtemariam
Caffeic acid (CA) and related phenylpropanoic acids are ubiquitous natural products of the shikimic acid pathway origin. Due to the presence of diorthohydroxyl aromatic (catecholic) moiety, CA is not only one of the most potent antioxidant phenyl propanoids but also display numerous other pharmacological effects ranging from antiinflammatory to anticancer effects. Recent studies also demonstrated that CA both in its free form or conjugated with other groups such as quinic acid and sugars display profound effects in the brain including protection from toxicity induced by a variety of agents and/or experimental models of Alzheimer's disease (AD)...
November 29, 2016: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/27846918/neurology-health-advocacy-curriculum-needs-assessment-curricular-content-and-underlying-components
#14
Ahmad Rida Abuzinadah, Lara Cooke
BACKGROUND: Lack of a health advocacy curriculum and clarity are obstacles for effectively teaching neurology health advocacy (NHA) to neurology residents. Our purpose is to assess the need and develop content for a NHA curriculum and to describe its underlying components. METHODS: This is a cross-sectional study with two steps. In step one, neurologists and neurology residents at University of Calgary were surveyed about their perception of teaching NHA and asked to rank 56 neurological diseases on a Likert scale based on how well they lend themselves to teaching health advocacy...
November 16, 2016: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/27845490/cognitive-disability-in-alzheimer-s-disease-and-its-management
#15
M Corsi, T Di Raimo, C Di Lorenzo, M Rapp-Ricciardi, T Archer, S Ricci, R Businaro
Cognitive disability linked to neurodegenerative diseases and in particular to Alzheimer's disease, remains an increasing cause for concern through a dramatic prevalence increment and associated socio-economic burdens. Initially Alzheimer's disease develops asymptomatically with primary clinical signs, such as memory impairment, decline of spatial and perceptual abilities, occurring at a later stage. This delay implies the possibility of promoting early interventions during the pre-symptomatic stage of the disease...
September 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/27802513/assessment-of-the-incremental-diagnostic-value-of-florbetapir-f-18-imaging-in-patients-with-cognitive-impairment-the-incremental-diagnostic-value-of-amyloid-pet-with-18f-florbetapir-india-fbp-study
#16
Marina Boccardi, Daniele Altomare, Clarissa Ferrari, Cristina Festari, Ugo Paolo Guerra, Barbara Paghera, Claudio Pizzocaro, Giulia Lussignoli, Cristina Geroldi, Orazio Zanetti, Maria Sofia Cotelli, Marinella Turla, Barbara Borroni, Luca Rozzini, Dario Mirabile, Carlo Defanti, Michele Gennuso, Alessandro Prelle, Simona Gentile, Alessandro Morandi, Stefano Vollaro, Giorgio Dalla Volta, Angelo Bianchetti, Marta Zaffira Conti, Melania Cappuccio, Pasqualina Carbone, Daniele Bellandi, Luciano Abruzzi, Luigi Bettoni, Daniele Villani, Maria Clara Raimondi, Alessia Lanari, Alfonso Ciccone, Emanuela Facchi, Ignazio Di Fazio, Renzo Rozzini, Stefano Boffelli, Laura Manzoni, Giovanni Pietro Salvi, Sabina Cavaliere, Gloria Belotti, Stefano Avanzi, Patrizio Pasqualetti, Cristina Muscio, Alessandro Padovani, Giovanni B Frisoni
Importance: Cerebral amyloidosis is a key abnormality in Alzheimer disease (AD) and can be detected in vivo with positron emission tomography (PET) ligands. Although amyloid PET has clearly demonstrated analytical validity, its clinical utility is debated. Objective: To evaluate the incremental diagnostic value of amyloid PET with florbetapir F 18 in addition to the routine clinical diagnostic assessment of patients evaluated for cognitive impairment. Design, Setting, and Participants: The Incremental Diagnostic Value of Amyloid PET With [18F]-Florbetapir (INDIA-FBP) Study is a multicenter study involving 18 AD evaluation units from eastern Lombardy, Northern Italy, 228 consecutive adults with cognitive impairment were evaluated for AD and other causes of cognitive decline, with a prescan diagnostic confidence of AD between 15% and 85%...
December 1, 2016: JAMA Neurology
https://www.readbyqxmd.com/read/27790089/proteomic-substrate-identification-for-membrane-proteases-in-the-brain
#17
REVIEW
Stephan A Müller, Simone D Scilabra, Stefan F Lichtenthaler
Cell-cell communication in the brain is controlled by multiple mechanisms, including proteolysis. Membrane-bound proteases generate signaling molecules from membrane-bound precursor proteins and control the length and function of cell surface membrane proteins. These proteases belong to different families, including members of the "a disintegrin and metalloprotease" (ADAM), the beta-site amyloid precursor protein cleaving enzymes (BACE), membrane-type matrix metalloproteases (MT-MMP) and rhomboids. Some of these proteases, in particular ADAM10 and BACE1 have been shown to be essential not only for the correct development of the mammalian brain, but also for myelination and maintaining neuronal connections in the adult nervous system...
2016: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/27757204/the-effect-of-green-tea-consumption-on-oxidative-stress-markers-and-cognitive-function-in-patients-with-alzheimer-s-disease-a-prospective-intervention-study
#18
Horrolein Arab, Soleiman Mahjoub, Karimollah Hajian-Tilaki, Mehdi Moghadasi
BACKGROUND: Alzheimer's disease (AD) is the most prevalent degenerative disorder of the brain among elderly individuals. Many studies indicate that oxidative stress is an important pathogenic factor which involves oxidizing macromolecules such as DNA, lipids, and proteins in AD. Green tea is a rich source of antioxidant compounds that can remove radical oxygen species. The purpose of this study was to investigate the influence of green tea consumption on markers of oxidative stress in AD...
2016: Caspian Journal of Internal Medicine
https://www.readbyqxmd.com/read/27733281/global-regional-and-national-life-expectancy-all-cause-mortality-and-cause-specific-mortality-for-249-causes-of-death-1980-2015-a-systematic-analysis-for-the-global-burden-of-disease-study-2015
#19
COMMENT
(no author information available yet)
BACKGROUND: Improving survival and extending the longevity of life for all populations requires timely, robust evidence on local mortality levels and trends. The Global Burden of Disease 2015 Study (GBD 2015) provides a comprehensive assessment of all-cause and cause-specific mortality for 249 causes in 195 countries and territories from 1980 to 2015. These results informed an in-depth investigation of observed and expected mortality patterns based on sociodemographic measures. METHODS: We estimated all-cause mortality by age, sex, geography, and year using an improved analytical approach originally developed for GBD 2013 and GBD 2010...
October 8, 2016: Lancet
https://www.readbyqxmd.com/read/27725817/bacteroides-fragilis-lipopolysaccharide-and-inflammatory-signaling-in-alzheimer-s-disease
#20
Walter J Lukiw
The human microbiome consists of ~3.8 × 10(13) symbiotic microorganisms that form a highly complex and dynamic ecosystem: the gastrointestinal (GI) tract constitutes the largest repository of the human microbiome by far, and its impact on human neurological health and disease is becoming increasingly appreciated. Bacteroidetes, the largest phylum of Gram-negative bacteria in the GI tract microbiome, while generally beneficial to the host when confined to the GI tract, have potential to secrete a remarkably complex array of pro-inflammatory neurotoxins that include surface lipopolysaccharides (LPSs) and toxic proteolytic peptides...
2016: Frontiers in Microbiology
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