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https://www.readbyqxmd.com/read/28813239/how-should-clinicians-counsel-a-woman-with-a-strong-family-history-of-early-onset-alzheimer-s-disease-about-her-pregnancy
#1
Marianna V Mapes, Barbara M O'Brien, Louise P King
Counseling patients regarding the benefits, harms, and dilemmas of genetic testing is one of the greatest ethical challenges facing reproductive medicine today. With or without test results, clinicians grapple with how to communicate potential genetic risks as patients weigh their reproductive options. Here, we consider a case of a woman with a strong family history of early-onset Alzheimer's disease (EOAD). She is early in her pregnancy and unsure about learning her own genetic status. We address the ethical ramifications of each of her options, which include genetic testing, genetic counseling, and termination versus continuation of the pregnancy...
July 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28811618/assessment-of-the-role-of-ageing-and-non-ageing-factors-in-death-from-non-communicable-diseases-based-on-a-cumulative-frequency-model
#2
Liu Hui
To quantify the effects of ageing and non-ageing factors, a characterization of the effects of ageing, genetic, and exogenous variables on 12 major non-communicable diseases was evaluated using a model assessing cumulative frequency of death and survival by age group from dead and surviving populations based on mortality statistics. Indices (0-1) of the roles of ageing (ARD), genetics (GRD) and exogenous (ERD) variables in deaths due to disease were established, and the sum of ARD, GRD and ERD was 1 (value of each indices was <1)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809652/effectiveness-of-interventions-for-caregivers-of-people-with-alzheimer-s-disease-and-related-major-neurocognitive-disorders-a-systematic-review
#3
Catherine Verrier Piersol, Kerry Canton, Susan E Connor, Ilana Giller, Stacy Lipman, Suzanne Sager
OBJECTIVE: The goal of the evidence review was to evaluate the effectiveness of interventions for caregivers of people with Alzheimer's disease and related major neurocognitive disorders that facilitate the ability to maintain participation in the caregiver role. METHOD: Scientific literature published in English between January 2006 and April 2014 was reviewed. Databases included MEDLINE, PsycINFO, CINAHL, OTseeker, and the Cochrane Database of Systematic Reviews...
September 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28806278/ce-original-research-the-experience-of-transitioning-to-a-caregiving-role-for-a-family-member-with-alzheimer-s-disease-or-related-dementia
#4
Kathleen Czekanski
Study findings suggest several areas for further research. ABSTRACT: Background: Alzheimer's disease is a chronic, debilitating disease that currently affects an estimated 5.5 million Americans. The majority are being cared for at home by family caregivers, who are known to have higher levels of burden than any other group of caregivers. PURPOSE: The purpose of this phenomenological study was to explore the lived experiences of people who transition to the role of caregiver for a family member with Alzheimer's disease or a related dementia...
August 10, 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28805100/older-adults-with-a-combination-of-vision-and-hearing-impairment-experience-higher-rates-of-cognitive-impairment-functional-dependence-and-worse-outcomes-across-a-set-of-quality-indicators
#5
Jacob G S Davidson, Dawn M Guthrie
OBJECTIVES: Hearing and vision impairment were examined across several health-related outcomes and across a set of quality indicators (QIs) in home care clients with both vision and hearing loss (or dual sensory impairment [DSI]). METHOD: Data collected using the Resident Assessment Instrument for Home Care (RAI-HC) were analyzed in a sample of older home care clients. The QIs represent the proportion of clients experiencing negative outcomes (e.g., falls, social isolation)...
August 1, 2017: Journal of Aging and Health
https://www.readbyqxmd.com/read/28799796/immune-modulation-by-curcumin-the-role-of-interleukin-10
#6
Hamid Mollazadeh, Arrigo F G Cicero, Christopher N Blesso, Matteo Pirro, Muhammed Majeed, Amirhossein Sahebkar
Cytokines are small secreted proteins released by different types of cells with specific effects on cellular signaling and communication via binding to their receptors on the cell surface. IL-10 is known to be a pleiotropic and potent anti-inflammatory and immunosuppressive cytokine that is produced by both innate and adaptive immunity cells including dendritic cells, macrophages, mast cells, natural killer cells, eosinophils, neutrophils, B cells, CD8(+) T cells, and TH1, TH2, and TH17 and regulatory T cells...
August 11, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28798667/the-foxp2-driven-network-in-developmental-disorders-and-neurodegeneration
#7
Franz Oswald, Patricia Klöble, André Ruland, David Rosenkranz, Bastian Hinz, Falk Butter, Sanja Ramljak, Ulrich Zechner, Holger Herlyn
The transcription repressor FOXP2 is a crucial player in nervous system evolution and development of humans and songbirds. In order to provide an additional insight into its functional role we compared target gene expression levels between human neuroblastoma cells (SH-SY5Y) stably overexpressing FOXP2 cDNA of either humans or the common chimpanzee, Rhesus monkey, and marmoset, respectively. RNA-seq led to identification of 27 genes with differential regulation under the control of human FOXP2, which were previously reported to have FOXP2-driven and/or songbird song-related expression regulation...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28762055/gulf-war-illness-gwi-as-a-neuroimmune-disease
#8
Apostolos P Georgopoulos, Lisa M James, Adam F Carpenter, Brian E Engdahl, Arthur C Leuthold, Scott M Lewis
Gulf War illness (GWI) is a chronic disease characterized by the involvement of several organs, including the brain (Christova et al., Exp Brain Res doi: 10.1007/s00221-017-5010-8 , 2017). In a previous study (Georgopoulos et al., J Neural Eng 4:349-355, 2015), we identified six protective alleles from Class II human leukocyte antigen (HLA) genes, and more recently, we investigated the brain correlates of this protection (James et al., EBioMedicine 13:72-79, 2016). Those and other studies (Israeli, Lupus, 21:190-194, 2012) suggested an involvement of the immune system in GWI...
July 31, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28750307/resilient-protein-co-expression-network-in-male-orbitofrontal-cortex-layer-2-3-during-human-aging
#9
Mohan Pabba, Enzo Scifo, Fenika Kapadia, Yuliya S Nikolova, Tianzhou Ma, Naguib Mechawar, George C Tseng, Etienne Sibille
The orbitofrontal cortex (OFC) is vulnerable to normal and pathologic aging. Currently, layer resolution large-scale proteomic studies describing "normal" age-related alterations at OFC are not available. Here, we performed a large-scale exploratory high-throughput mass spectrometry-based protein analysis on OFC layer 2/3 from 15 "young" (15-43 years) and 18 "old" (62-88 years) human male subjects. We detected 4193 proteins and identified 127 differentially expressed (DE) proteins (p-value ≤0.05; effect size >20%), including 65 up- and 62 downregulated proteins (e...
July 5, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28738127/early-onset-alzheimer-disease-and-candidate-risk-genes-involved-in-endolysosomal-transport
#10
Brian W Kunkle, Badri N Vardarajan, Adam C Naj, Patrice L Whitehead, Sophie Rolati, Susan Slifer, Regina M Carney, Michael L Cuccaro, Jeffery M Vance, John R Gilbert, Li-San Wang, Lindsay A Farrer, Christiane Reitz, Jonathan L Haines, Gary W Beecham, Eden R Martin, Gerard D Schellenberg, Richard P Mayeux, Margaret A Pericak-Vance
Importance: Mutations in APP, PSEN1, and PSEN2 lead to early-onset Alzheimer disease (EOAD) but account for only approximately 11% of EOAD overall, leaving most of the genetic risk for the most severe form of Alzheimer disease unexplained. This extreme phenotype likely harbors highly penetrant risk variants, making it primed for discovery of novel risk genes and pathways for AD. Objective: To search for rare variants contributing to the risk for EOAD. Design, Setting, and Participants: In this case-control study, whole-exome sequencing (WES) was performed in 51 non-Hispanic white (NHW) patients with EOAD (age at onset <65 years) and 19 Caribbean Hispanic families previously screened as negative for established APP, PSEN1, and PSEN2 causal variants...
July 24, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28711405/a-unique-glycan-isoform-of-transferrin-in-cerebrospinal-fluid-a-potential-diagnostic-marker-for-neurological-diseases
#11
REVIEW
Kyoka Hoshi, Hiromi Ito, Yuka Matsumoto, Kiyoshi Saito, Takashi Honda, Yoshiki Yamaguchi, Yasuhiro Hashimoto
BACKGROUND: cerebrospinal fluid (CSF) is sequestered from blood by the blood-brain barrier and directly communicates with brain parenchymal interstitial fluid, leading to contain specific biomarkers of neurological diseases. SCOPE OF REVIEW: CSF contains glycan isoforms of transferrin (Tf): one appears to be derived from the brain and the other from blood. MAJOR CONCLUSIONS: CSF contains two glycan-isoforms; brain-type Tf and serum-type Tf...
July 12, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28703353/inhibition-of-glial-hemichannels-by-boldine-treatment-reduces-neuronal-suffering-in-a-murine-model-of-alzheimer-s-disease
#12
Chenju Yi, Pascal Ezan, Paola Fernández, Julien Schmitt, Juan C Sáez, Christian Giaume, Annette Koulakoff
The contribution of reactive gliosis to the pathological phenotype of Alzheimer's disease (AD) opened the way for therapeutic strategies targeting glial cells instead of neurons. In such context, connexin hemichannels were proposed recently as potential targets since neuronal suffering is alleviated when connexin expression is genetically suppressed in astrocytes of a murine model of AD. Here, we show that boldine, an alkaloid from the boldo tree, inhibited hemichannel activity in astrocytes and microglia without affecting gap junctional communication in culture and acute hippocampal slices...
July 13, 2017: Glia
https://www.readbyqxmd.com/read/28687876/chromosome-21-encoded-micrornas-mrnas-impact-on-down-s-syndrome-and-trisomy-21-linked-disease
#13
P N Alexandrov, M E Percy, Walter J Lukiw
Down's syndrome (DS; also known as trisomy 21; T21) is caused by a triplication of all or part of human chromosome 21 (chr21). DS is the most common genetic cause of intellectual disability attributable to a naturally-occurring imbalance in gene dosage. DS incurs huge medical, healthcare, and socioeconomic costs, and there are as yet no effective treatments for this incapacitating human neurogenetic disorder. There is a remarkably wide variability in the 'phenotypic spectrum' associated with DS; the progression of symptoms and the age of DS onset fluctuate, and there is further variability in the biophysical nature of the chr21 duplication...
July 7, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28665546/astroglial-vesicular-network-evolutionary-trends-physiology-and-pathophysiology
#14
REVIEW
R Zorec, V Parpura, A Verkhratsky
Intracellular organelles, including secretory vesicles, emerged when eukaryotic cells evolved some 3 billion years ago. The primordial organelles that evolved in Archaea were similar to endolysosomes, which developed, arguably, for specific metabolic tasks, including uptake, metabolic processing, storage and disposal of molecules. In comparison with prokaryotes, cell volume of eukaryotes increased by several orders of magnitude and vesicle traffic emerged to allow for communication between distant intracellular locations...
June 30, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28652929/tnf-%C3%AE-and-beyond-rapid-mitochondrial-dysfunction-mediates-tnf-%C3%AE-induced-neurotoxicity
#15
Ashley E Russell, Danielle N Doll, Saumyendra N Sarkar, James W Simpkins
This short communication describes our research which demonstrates that TNF-α causes a rapid decline in mitochondrial function, leading to neuronal cell death. As such, this neurotoxic proinflammatory cytokine may play a role in brain damage from stroke and neurodegeneration in chronic conditions such as Alzheimer's disease (AD) and Parkinson's disease. We have extended this initial observation by demonstrating that TNF-α stimulates a microRNA (miR-34a) which we have shown reduces five key proteins in the mitochondrial electron transport chain through base-pair complementarity...
December 2016: Journal of Clinical & Cellular Immunology
https://www.readbyqxmd.com/read/28643167/microbiome-probiotics-and-neurodegenerative-diseases-deciphering-the-gut-brain-axis
#16
REVIEW
Susan Westfall, Nikita Lomis, Imen Kahouli, Si Yuan Dia, Surya Pratap Singh, Satya Prakash
The gut microbiota is essential to health and has recently become a target for live bacterial cell biotherapies for various chronic diseases including metabolic syndrome, diabetes, obesity and neurodegenerative disease. Probiotic biotherapies are known to create a healthy gut environment by balancing bacterial populations and promoting their favorable metabolic action. The microbiota and its respective metabolites communicate to the host through a series of biochemical and functional links thereby affecting host homeostasis and health...
June 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28640632/gut-microbiota-nitric-oxide-and-microglia-as-prerequisites-for-neurodegenerative-disorders
#17
Joyce K Y Tse
Regulating fluctuating endogenous nitric oxide (NO) levels is necessary for proper physiological functions. Aberrant NO pathways are implicated in a number of neurological disorders, including Alzheimer's disease (AD) and Parkinson's disease. The mechanism of NO in oxidative and nitrosative stress with pathological consequences involves reactions with reactive oxygen species (e.g., superoxide) to form the highly reactive peroxynitrite, hydrogen peroxide, hypochloride ions and hydroxyl radical. NO levels are typically regulated by endogenous nitric oxide synthases (NOS), and inflammatory iNOS is implicated in the pathogenesis of neurodegenerative diseases, in which elevated NO mediates axonal degeneration and activates cyclooxygenases to provoke neuroinflammation...
July 19, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28628736/-it-s-definitely-not-alzheimer-s-perceived-benefits-and-drawbacks-of-a-mild-cognitive-impairment-diagnosis
#18
Tim Gomersall, Sarah Kate Smith, Charlotte Blewett, Arlene Astell
OBJECTIVES: To understand the perceived benefits and drawbacks of a mild cognitive impairment (MCI) diagnosis from the perspective of those living with the label. METHODS: Participants were included if they had recently (within 6 months) received a MCI diagnosis. We also recruited close family members to gain their perspectives. Each was interviewed separately with a semi-structured topic guide covering three areas: (1) experience of cognitive impairments and changes in the individual; (2) impact of cognitive impairment(s) on daily activities and social relationships; and (3) experience of the diagnosis process and living with the label...
June 19, 2017: British Journal of Health Psychology
https://www.readbyqxmd.com/read/28625939/promoting-the-maintenance-of-satisfactory-communication-strategies-used-by-caregivers-and-medical-staff-with-people-suffering-from-alzheimer-s-disease
#19
Marie Vachon, Marie-Christine Veilleux, Joël Macoir
The goal of this literature review was to determine communication strategies that foster interactions between individuals with Alzheimer's disease (AD) and caregivers or medical staff. A search of PubMed and PsycINFO databases was conducted using combinations of the following terms: Alzheimer, family, caregiver, communication, language, treatment, intervention, therapy, communication strategies, functional communication and daily living activities. Studies were chosen based on the original language of the text, year of publication, peer-review status and specificity of the results regarding communication strategies in AD...
June 1, 2017: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/28604627/the-role-of-affect-and-cognition-in-processing-messages-about-early-diagnosis-for-alzheimer-s-disease-by-older-people
#20
Patrick De Pelsmacker, Martine Lewi, Veroline Cauberghe
Through early diagnosis of symptoms, the Alzheimer's disease process can be decelerated. The main concern is to encourage the population at risk to take responsible actions at the earliest stage of the onset of the disease. Persuasive communication is essential to achieve this. In an experimental study, the evaluation of awareness messages for early diagnosis containing weak and strong arguments and negative and positive images was performed on a sample of older Belgians. The mediating role of affective responses and message thoughts was explored...
June 12, 2017: Healthcare (Basel, Switzerland)
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