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https://www.readbyqxmd.com/read/28208745/astrocytic-pathological-calcium-homeostasis-and-impaired-vesicle-trafficking-in-neurodegeneration
#1
REVIEW
Nina Vardjan, Alexej Verkhratsky, Robert Zorec
Although the central nervous system (CNS) consists of highly heterogeneous populations of neurones and glial cells, clustered into diverse anatomical regions with specific functions, there are some conditions, including alertness, awareness and attention that require simultaneous, coordinated and spatially homogeneous activity within a large area of the brain. During such events, the brain, representing only about two percent of body mass, but consuming one fifth of body glucose at rest, needs additional energy to be produced...
February 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28202700/postmenopausal-hormone-therapy-and-alzheimer-disease-a-prospective-cohort-study
#2
Bushra Imtiaz, Marjo Tuppurainen, Toni Rikkonen, Miia Kivipelto, Hilkka Soininen, Heikki Kröger, Anna-Maija Tolppanen
OBJECTIVE: To explore the association between postmenopausal hormone therapy (HT) and Alzheimer disease (AD). METHODS: Twenty-year follow-up data from the Kuopio Osteoporosis Risk Factor and Prevention study cohort were used. Self-administered questionnaires were sent to all women aged 47-56 years, residing in Kuopio Province starting in 1989 until 2009, every 5th year. Register-based information on HT prescriptions was available since 1995. Probable AD cases, based on DSM-IV and National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association criteria, were identified from the special reimbursement register (1999-2009)...
February 15, 2017: Neurology
https://www.readbyqxmd.com/read/28184302/the-role-of-exosomes-in-the-pathogenesis-of-alzheimer-disease
#3
REVIEW
Tingting Xiao, Weiwei Zhang, Bin Jiao, Chu-Zheng Pan, Xixi Liu, Lu Shen
Exosomes are small vesicles secreted by most cell types including neurons that function in intercellular communication through transfer of their cargo or encapsulate and eliminate unnecessary cellular components and therefore have a broad impact on nerve development, activation and regeneration. In addition, exosomes have been observed to be involved in spreading pathological misfolded proteins, thereby leading to the onset and propagation of disease. Alzheimer disease (AD) is the most common form of dementia and characterized by two types of lesions: amyloid plaques and neurofibrillary tangles...
2017: Translational Neurodegeneration
https://www.readbyqxmd.com/read/28167212/recruitment-of-rna-molecules-by-connexin-rna-binding-motifs-implication-in-rna-and-dna-transport-through-microvesicles-and-exosomes
#4
REVIEW
Marta Varela-Eirin, Adrian Varela-Vazquez, Marina Rodríguez-Candela Mateos, Anton Vila-Sanjurjo, Eduardo Fonseca, José L Mascareñas, M Eugenio Vázquez, Maria D Mayan
Connexins (Cxs) are integral membrane proteins that form high-conductance plasma membrane channels, allowing communication from cell to cell (via gap junctions) and from cells to the extracellular environment (via hemichannels). Initially described for their role in joining excitable cells (nerve and muscle), gap junctions (GJs) are found between virtually all cells in solid tissues and are essential for functional coordination by enabling the direct transfer of small signalling molecules, metabolites, ions, and electrical signals from cell to cell...
February 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28155990/dance-movement-therapy-for-dementia
#5
REVIEW
Vicky Karkou, Bonnie Meekums
BACKGROUND: Dementia is a collective name for different degenerative brain syndromes which, according to Alzheimer's Disease International, affects approximately 35.6 million people worldwide. The latest NICE guideline for dementia highlights the value of diverse treatment options for the different stages and symptoms of dementia including non-pharmacological treatments. Relevant literature also argues for the value of interventions that acknowledge the complexity of the condition and address the person as a whole, including their physical, emotional, social and cognitive processes...
February 3, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28152153/aspects-of-self-and-identity-in-narrations-about-recent-events-communication-with-individuals-with-alzheimer-s-disease-enabled-by-a-digital-photograph-diary
#6
Eva Karlsson, Karin Zingmark, Karin Axelsson, Stefan Sävenstedt
HOW TO OBTAIN CONTACT HOURS BY READING THIS ARTICLE INSTRUCTIONS XX contact hours will be awarded by Villanova University College of Nursing upon successful completion of this activity. A contact hour is a unit of measurement that denotes 60 minutes of an organized learning activity. This is a learner-based activity. Villanova University College of Nursing does not require submission of your answers to the quiz. A contact hour certificate will be awarded once you register, pay the registration fee, and complete the evaluation form online at http://goo...
February 2, 2017: Journal of Gerontological Nursing
https://www.readbyqxmd.com/read/28115436/a-patient-s-experience-in-dementia-care-using-the-lived-experience-to-improve-care
#7
REVIEW
Christopher Frank, Rev Faye Forbes
OBJECTIVE: To give FPs an understanding of the "lived experience" of dementia via the words of a person with dementia (PWD)- Faye Forbes, a 64-year-old Anglican priest with Alzheimer disease who provides her perspectives on living with dementia-and to use these thoughts to improve care and outcomes. SOURCES OF INFORMATION: Ovid MEDLINE was searched from January 2005 to February 2015 using subject headings for dementia, caregiver, perspectives, and quality of health care...
January 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28100644/multicellular-hypothesis-for-the-pathogenesis-of-alzheimer-s-disease
#8
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
#9
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
#10
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...
February 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
#11
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
#12
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...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28054371/review-tau-in-biofluids-relation-to-pathology-imaging-and-clinical-features
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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