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https://www.readbyqxmd.com/read/28501754/expectant-futures-and-an-early-diagnosis-of-alzheimer-s-disease-knowing-and-its-consequences
#1
Julia Swallow
Efforts to diagnose Alzheimer's disease (AD) at earlier stages as a means to managing the risks of an ageing population, dominate scientific research and healthcare policy in the UK. It is anticipated that early diagnosis will maximise treatment options and enable patients to 'prepare for their future' in terms of care. Drawing on qualitative data gathered across an out-patient memory service and in-patient hospital in the UK, the purpose of this paper is to examine the ways in which the hopeful promissory claims of early diagnosis as it maintains the dominant biomedical model for managing AD, are negotiated by healthcare practitioners...
May 6, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28449556/role-of-sleep-disturbance-in-the-trajectory-of-alzheimer-s-disease
#2
REVIEW
Dong Woo Kang, Chang Uk Lee, Hyun Kook Lim
Sleep disturbances such as insomnia, hypersomnia, and circadian rhythm disturbance are common in normal elderly and Alzheimer's disease (AD) patients. To date, special attention has been paid to sleep disturbance in the clinical course of AD insofar as the interaction of sleep disturbance with the pathogenesis of AD may impact the clinical course and cognitive function of AD patients. This review covers the bidirectional relationship between sleep disturbance and AD pathogenesis; the associations between sleep disturbance and AD-specific neurotransmitters, brain structure, and aspects of sleep disturbance in each phase of AD; and the effects of sleep disturbance on the cognitive functions of patients in each phase of AD...
May 31, 2017: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28418403/assessing-the-presence-of-shared-genetic-architecture-between-alzheimer-s-disease-and-major-depressive-disorder-using-genome-wide-association-data
#3
J Gibson, T C Russ, M J Adams, T-K Clarke, D M Howard, L S Hall, A M Fernandez-Pujals, E M Wigmore, C Hayward, G Davies, A D Murray, B H Smith, D J Porteous, I J Deary, A M McIntosh
Major depressive disorder (MDD) and Alzheimer's disease (AD) are both common in older age and frequently co-occur. Numerous phenotypic studies based on clinical diagnoses suggest that a history of depression increases risk of subsequent AD, although the basis of this relationship is uncertain. Both illnesses are polygenic, and shared genetic risk factors could explain some of the observed association. We used genotype data to test whether MDD and AD have an overlapping polygenic architecture in two large population-based cohorts, Generation Scotland's Scottish Family Health Study (GS:SFHS; N=19 889) and UK Biobank (N=25 118), and whether age of depression onset influences any relationship...
April 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28396254/mutpred-mutational-load-analysis-shows-mildly-deleterious-mitochondrial-dna-variants-are-not-more-prevalent-in-alzheimer-s-patients-but-may-be-under-represented-in-healthy-older-individuals
#4
Ilse S Pienaar, Neil Howell, Joanna L Elson
Mitochondrial DNA (mtDNA) association studies have been conducted for over a decade using the haplogroup (lineage) association method, but this frequently produces conflicting results. Here we analyzed complete mtDNA sequence data of Alzheimer's disease (AD) patients and aged controls, from the United Kingdom (UK) and the United States (US), using a new "mutational load" method. We calculated a pathogenicity score for each of the non-synonymous substitutions of the mtDNA sequences to produce a "total mutational load" for each sequence, and compared the mutational loads of cases and controls...
April 7, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28372334/dementia-screening-accuracy-is-robust-to-premorbid-iq-variation-evidence-from-the-addenbrooke-s-cognitive-examination-iii-and-the-test-of-premorbid-function
#5
Joshua Stott, Katrina Scior, William Mandy, Georgina Charlesworth
BACKGROUND: Scores on cognitive screening tools for dementia are associated with premorbid IQ. It has been suggested that screening scores should be adjusted accordingly. However, no study has examined whether premorbid IQ variation affects screening accuracy. OBJECTIVE: To investigate whether the screening accuracy of a widely used cognitive screening tool for dementia, the Addenbrooke's cognitive examination-III (ACE-III), is improved by adjusting for premorbid IQ...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28349199/amyloid-%C3%AE-accumulation-in-the-cns-in-human-growth-hormone-recipients-in-the-uk
#6
Diane L Ritchie, Peter Adlard, Alexander H Peden, Suzanne Lowrie, Margaret Le Grice, Kimberley Burns, Rosemary J Jackson, Helen Yull, Michael J Keogh, Wei Wei, Patrick F Chinnery, Mark W Head, James W Ironside
Human-to-human transmission of Creutzfeldt-Jakob disease (CJD) has occurred through medical procedures resulting in iatrogenic CJD (iCJD). One of the commonest causes of iCJD was the use of human pituitary-derived growth hormone (hGH) to treat primary or secondary growth hormone deficiency. As part of a comprehensive tissue-based analysis of the largest cohort yet collected (35 cases) of UK hGH-iCJD cases, we describe the clinicopathological phenotype of hGH-iCJD in the UK. In the 33/35 hGH-iCJD cases with sufficient paraffin-embedded tissue for full pathological examination, we report the accumulation of the amyloid beta (Aβ) protein associated with Alzheimer's disease (AD) in the brains and cerebral blood vessels in 18/33 hGH-iCJD patients and for the first time in 5/12 hGH recipients who died from causes other than CJD...
March 27, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28336296/serotonin-and-dopamine-transporter-pet-changes-in-the-premotor-phase-of-lrrk2-parkinsonism-cross-sectional-studies
#7
Daryl J Wile, Pankaj A Agarwal, Michael Schulzer, Edwin Mak, Katherine Dinelle, Elham Shahinfard, Nasim Vafai, Kazuko Hasegawa, Jing Zhang, Jessamyn McKenzie, Nicole Neilson, Audrey Strongosky, Ryan J Uitti, Mark Guttman, Cyrus P Zabetian, Yu-Shin Ding, Mike Adam, Jan Aasly, Zbigniew K Wszolek, Matthew Farrer, Vesna Sossi, A Jon Stoessl
BACKGROUND: People with Parkinson's disease can show premotor neurochemical changes in the dopaminergic and non-dopaminergic systems. Using PET, we assessed whether dopaminergic and serotonin transporter changes are similar in LRRK2 mutation carriers with Parkinson's disease and individuals with sporadic Parkinson's disease, and whether LRRK2 mutation carriers without motor symptoms show PET changes. METHODS: We did two cross-sectional PET studies at the Pacific Parkinson's Research Centre in Vancouver, BC, Canada...
May 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28304285/what-drives-country-differences-in-cost-of-alzheimer-s-disease-an-explanation-from-resource-use-in-the-geras-study
#8
Catherine Reed, Michael Happich, Josep Maria Argimon, Josep Maria Haro, Anders Wimo, Giuseppe Bruno, Richard Dodel, Roy W Jones, Bruno Vellas, Mark Belger
BACKGROUND: Country differences in resource use and costs of Alzheimer's disease (AD) may be driven by differences in health care systems and resource availability. OBJECTIVE: To compare country resource utilization drivers of societal costs for AD dementia over 18 months. METHODS: GERAS is an observational study in France (n = 419), Germany (n = 550), and the UK (n = 526). Resource use of AD patients and caregivers contributing to >1% of total societal costs (year 2010) was assessed for country differences, adjusting for participant characteristics...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28249989/associations-between-specific-autoimmune-diseases-and-subsequent-dementia-retrospective-record-linkage-cohort-study-uk
#9
Clare J Wotton, Michael J Goldacre
OBJECTIVE: To determine whether hospital admission for autoimmune disease is associated with an elevated risk of future admission for dementia. METHODS: Retrospective, record-linkage cohort study using national hospital care and mortality administrative data, 1999-2012. Cohorts of people admitted to hospital with a range of autoimmune diseases were constructed, along with a control cohort, and followed forward in time to see if they developed dementia. 1 833 827 people were admitted to hospital with an autoimmune disease; the number of people in cohorts for each autoimmune disease ranged from 1019 people in the Goodpasture's syndrome cohort, to 316 043 people in the rheumatoid arthritis cohort...
March 1, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28124971/people-with-alzheimer-s-disease-and-their-spouse-caregivers-differences-in-perceptions-of-sexual-satisfaction
#10
Briony Dow, Sue Malta
Older informal caregivers aged 65+ years account for 34% of all carers in the USA (Family Caregivers Alliance, 2016), 22% in England and Wales (Carers UK, 2015), and 24% in Australia (Deloitte Access Economics, 2015). For many older carers, this means looking after their spouse or intimate partner who in many cases has dementia (Donnellan et al., 2015). As the incidence of dementia increases, the need to understand the impact of caring on these intimate relationships becomes more vital, so the experiences of spousal caregivers can be anticipated, validated, and supported...
February 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28096673/apathy-and-intrinsic-functional-connectivity-networks-in-amnestic-mild-cognitive-impairment
#11
Soo Hyun Joo, Chang Uk Lee, Hyun Kook Lim
BACKGROUND: Although several prior works reported that apathy is associated with conversion to Alzheimer's disease in individuals with amnestic mild cognitive impairment (aMCI), effects of apathy on the functional connectivity (FC) of the brain remain unclear. In this study, we assessed the pattern of association between apathy and default mode network (DMN), salience network and central executive network (CEN) in aMCI subjects. METHODS: Fifty subjects with aMCI and 50 controls (CONs) participated in this study...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28092683/case-control-association-mapping-by-proxy-using-family-history-of-disease
#12
Jimmy Z Liu, Yaniv Erlich, Joseph K Pickrell
Collecting cases for case-control genetic association studies can be time-consuming and expensive. In some situations (such as studies of late-onset or rapidly lethal diseases), it may be more practical to identify family members of cases. In randomly ascertained cohorts, replacing cases with their first-degree relatives enables studies of diseases that are absent (or nearly absent) in the cohort. We refer to this approach as genome-wide association study by proxy (GWAX) and apply it to 12 common diseases in 116,196 individuals from the UK Biobank...
March 2017: Nature Genetics
https://www.readbyqxmd.com/read/28088881/an-industry-update-the-latest-developments-in-therapeutic-delivery
#13
Iain Simpson
This Industry Update covers the period from 1 October through to 31 October 2016, and is based on information sourced from company press releases, scientific literature, patents and various news websites. The month saw several news items covering drug-delivery devices, including a new sensor to monitor and support the use of inhalers; launch in the UK of a new autoinjector for Cimzia(®), UCB's rheumatoid arthritis drug; and approval of Roche's Lucentis(®) in a prefilled syringe. Research was also published to show the value of continuous blood pressure monitoring in dementia management...
February 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28076975/book-reviews-boltz-marie-and-galvin-james-e-eds-dementia-care-an-evidence-based-approach-springer-international-publishing-switzerland-2016-325-pp-ibsn-978-3-319-18376-3-129-00-sbk-beard-ren%C3%A3-e-l-living-with-alzheimer-s-managing-memory-loss-identity-and-illness
#14
https://www.readbyqxmd.com/read/28041964/association-between-dna-methyltransferase-gene-polymorphism-and-parkinson-s-disease
#15
Julio Carlos Pezzi, Cintia Monique Boschmann Ens de Bem, Tatiane Jacobsen da Rocha, Artur F Schumacher-Schuh, Marcia Lorena Fagundes Chaves, Carlos Roberto Rieder, Mara H Hutz, Marilu Fiegenbaum, Ana Luiza Camozzato
Parkinson's disease (PD) is a common and complex neurodegenerative disorder, the second most prevalent, only behind Alzheimer's disease. Recent studies suggest that environmental factors may contribute for neurodegeneration through induction of epigenetic modifications, such as DNA methylation, that is carried out by enzymes, such as DNMT1 and DNMT3B. This present study targeted to investigate the association among DNMT1 and DNMT3B polymorphisms with PD. Five hundred and twenty-two participants (214 PD patients following UK Brain Bank criteria and 308 healthy individuals) were evaluated...
February 3, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28039094/petpve12-an-spm-toolbox-for-partial-volume-effects-correction-in-brain-pet-application-to-amyloid-imaging-with-av45-pet
#16
Gabriel Gonzalez-Escamilla, Catharina Lange, Stefan Teipel, Ralph Buchert, Michel J Grothe
Positron emission tomography (PET) allows detecting molecular brain changes in vivo. However, the accuracy of PET is limited by partial volume effects (PVE) that affects quantitative analysis and visual interpretation of the images. Although PVE-correction methods have been shown to effectively increase the correspondence of the measured signal with the true regional tracer uptake, these procedures are still not commonly applied, neither in clinical nor in research settings. Here, we present an implementation of well validated PVE-correction procedures as a SPM toolbox, PETPVE12, for automated processing...
February 15, 2017: NeuroImage
https://www.readbyqxmd.com/read/28003435/genetic-compendium-of-1511-human-brains-available-through-the-uk-medical-research-council-brain-banks-network-resource
#17
Michael J Keogh, Wei Wei, Ian Wilson, Jon Coxhead, Sarah Ryan, Sara Rollinson, Helen Griffin, Marzena Kurzawa-Akanbi, Mauro Santibanez-Koref, Kevin Talbot, Martin R Turner, Chris-Anne McKenzie, Claire Troakes, Johannes Attems, Colin Smith, Safa Al Sarraj, Chris M Morris, Olaf Ansorge, Stuart Pickering-Brown, James W Ironside, Patrick F Chinnery
Given the central role of genetic factors in the pathogenesis of common neurodegenerative disorders, it is critical that mechanistic studies in human tissue are interpreted in a genetically enlightened context. To address this, we performed exome sequencing and copy number variant analysis on 1511 frozen human brains with a diagnosis of Alzheimer's disease (AD, n = 289), frontotemporal dementia/amyotrophic lateral sclerosis (FTD/ALS, n = 252), Creutzfeldt-Jakob disease (CJD, n = 239), Parkinson's disease (PD, n = 39), dementia with Lewy bodies (DLB, n = 58), other neurodegenerative, vascular, or neurogenetic disorders (n = 266), and controls with no significant neuropathology (n = 368)...
January 2017: Genome Research
https://www.readbyqxmd.com/read/27965247/can-commonly-prescribed-drugs-be-repurposed-for-the-prevention-or-treatment-of-alzheimer-s-and-other-neurodegenerative-diseases-protocol-for-an-observational-cohort-study-in-the-uk-clinical-practice-research-datalink
#18
Venexia M Walker, Neil M Davies, Tim Jones, Patrick G Kehoe, Richard M Martin
INTRODUCTION: Current treatments for Alzheimer's and other neurodegenerative diseases have only limited effectiveness meaning that there is an urgent need for new medications that could influence disease incidence and progression. We will investigate the potential of a selection of commonly prescribed drugs, as a more efficient and cost-effective method of identifying new drugs for the prevention or treatment of Alzheimer's disease, non-Alzheimer's disease dementias, Parkinson's disease and amyotrophic lateral sclerosis...
December 13, 2016: BMJ Open
https://www.readbyqxmd.com/read/27925545/sea-hero-quest
#19
REVIEW
(no author information available yet)
Sea Hero Quest has been developed to help fight dementia. The mobile game is a collaboration between Alzheimer's Research UK and scientists from University College London and the University of East Anglia.
December 7, 2016: Nursing Standard
https://www.readbyqxmd.com/read/27887645/resource-utilisation-costs-and-clinical-outcomes-in-non-institutionalised-patients-with-alzheimer-s-disease-18-month-uk-results-from-the-geras-observational-study
#20
Alan Lenox-Smith, Catherine Reed, Jeremie Lebrec, Mark Belger, Roy W Jones
BACKGROUND: Alzheimer's disease (AD), the commonest cause of dementia, represents a significant cost to UK society. This analysis describes resource utilisation, costs and clinical outcomes in non-institutionalised patients with AD in the UK. METHODS: The GERAS prospective observational study assessed societal costs associated with AD for patients and caregivers over 18 months, stratified according to baseline disease severity (mild, moderate, or moderately severe/severe [MS/S])...
November 25, 2016: BMC Geriatrics
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