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https://www.readbyqxmd.com/read/28550265/patient-preferences-may-be-indicative-of%C3%A2-normative-issues-in-dementia-research
#1
Cynthia Forlini
Robillard and Feng highlight incongruence between patient preferences and the procedural aspects of research ethics as they relate to protocols for dementia research. Their findings break ground for a reassessment of how research ethics, researchers, and participants (including patients and caregivers) approach participation in dementia research. However, it is unclear whether patient preferences may also herald a normative gap between how dementia research is being conducted and how it should be done. This response uses one of Robillard and Feng's findings to illustrate how descriptive empirical data might be reinterpreted into normative questions that reframe current practices in the context of dementia research...
May 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550099/viral-delivery-of-c9orf72-hexanucleotide-repeat-expansions-in-mice-lead-to-repeat-length-dependent-neuropathology-and-behavioral-deficits
#2
Saul Herranz-Martin, Jayanth Chandran, Katherine Lewis, Padraig Mulcahy, Adrian Higginbottom, Callum Walker, Isabel Martinez-Pena Y Valenzuela, Ross A Jones, Ian Coldicott, Tommaso Iannitti, Mohammed Akaaboune, Sherif F El-Khamisy, Thomas H Gillingwater, Pamela J Shaw, Mimoun Azzouz
Intronic GGGGCC repeat expansions in C9orf72 are the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Two major pathologies stemming from the hexanucleotide RNA expansions (HREs) have been identified in postmortem tissue: intracellular RNA foci and repeat-associated non-ATG dependent (RAN) dipeptides, though it is unclear how these and other hallmarks of disease contribute to the pathophysiology of neuronal injury. Here we generated two novel lines of mice that overexpress either 10 pure or 102 interrupted G4C2 repeats mediated by adeno-associated virus (AAV) and characterized relevant pathology and disease-related behavioral phenotypes...
May 26, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28545362/insight-into-the-role-of-photoreception-and-light-intervention-for-sleep-and-neuropsychiatric-behaviour-in-the-elderly
#3
Katharina Wulff, Russell G Foster
Light exerts influences on many physiological and behavioural functions in humans. These functions can be described as image-forming (IF) and non-image forming (NIF) visual processes, both originating in the retina of the eye. Image-forming refers to vision; the process of detecting and distinguishing shapes and colour of objects. Non-image forming refers to detecting level of light intensity or brightness of ambient space, which affects basal physiology such as cycles of rest and activity or the endocrine system...
May 22, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28542315/attitudes-of-older-people-with-mild-dementia-and-mild-cognitive-impairment-and-their-relatives-about-falls-risk-and-prevention-a-qualitative-study
#4
Tamsin Peach, Kristian Pollock, Veronika van der Wardt, Roshan das Nair, Pip Logan, Rowan H Harwood
OBJECTIVE: To explore the perceptions of older people with mild dementia and mild cognitive impairment, and their family carers, about falling, falls risk and the acceptability of falls prevention interventions. DESIGN: Qualitative study involving thematic analysis of semi-structured interviews with patient and relative dyads. PARTICIPANTS AND SETTING: 20 patient/ relative dyads recruited from Memory Assessment Services and Falls Prevention Services in the United Kingdom...
2017: PloS One
https://www.readbyqxmd.com/read/28541585/approaches-to-affective-behavioral-and-cognitive-symptoms-of-individuals-with-dementia-a-thorny-issue-and-a-rose-by-another-name
#5
EDITORIAL
Christine R Kovach, Ann Kolanowski, Andrea Gilmore-Bykovskyi
No abstract text is available yet for this article.
May 1, 2017: Research in Gerontological Nursing
https://www.readbyqxmd.com/read/28540771/identifying-therapeutic-targets-for-alzheimer-s-disease-with-big-data
#6
Nilüfer Ertekin-Taner
Nilüfer Ertekin-Taner is a Professor of Neuroscience and Neurology at the Mayo Clinic, Jacksonville, FL, USA. A neurogeneticist and board-certified behavioral neurologist, she received her medical degree from Hacettepe University Medical School in Ankara, Turkey and her doctorate degree in Molecular Neuroscience from Mayo Graduate School. She completed her residency training in the Department of Neurology at Mayo Clinic in Rochester (MN, USA) and fellowship in Behavioral Neurology at Mayo Clinic in Jacksonville...
April 2017: Neurodegenerative Disease Management
https://www.readbyqxmd.com/read/28539121/network-mirroring-for-drug-repositioning
#7
Sunghong Park, Dong-Gi Lee, Hyunjung Shin
BACKGROUND: Although drug discoveries can provide meaningful insights and significant enhancements in pharmaceutical field, the longevity and cost that it takes can be extensive where the success rate is low. In order to circumvent the problem, there has been increased interest in 'Drug Repositioning' where one searches for already approved drugs that have high potential of efficacy when applied to other diseases. To increase the success rate for drug repositioning, one considers stepwise screening and experiments based on biological reactions...
May 18, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28536518/mri-visual-ratings-of-brain-atrophy-and-white-matter-hyperintensities-across-the-spectrum-of-cognitive-decline-are-differently-affected-by-age-and-diagnosis
#8
Hanneke F M Rhodius-Meester, Marije R Benedictus, Mike P Wattjes, Frederik Barkhof, Philip Scheltens, Majon Muller, Wiesje M van der Flier
Aim: To assess the associations of age and diagnosis with visual ratings of medial temporal lobe atrophy (MTA), parietal atrophy (PA), global cortical atrophy (GCA), and white matter hyperintensities (WMH) and to investigate their clinical value in a large memory clinic cohort. Methods: We included 2,934 patients (age 67 ± 9 years; 1,391 [47%] female; MMSE 24 ± 5) from the Amsterdam Dementia Cohort (1,347 dementia due to Alzheimer's disease [AD]; 681 mild cognitive impairment [MCI]; 906 controls with subjective cognitive decline)...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28532896/healing-of-fracture-nonunions-treated-with-low-intensity-pulsed-ultrasound-lipus-a-systematic-review-and-meta-analysis
#9
Ross Leighton, J Tracy Watson, Peter Giannoudis, Costas Papakostidis, Andrew Harrison, R Grant Steen
INTRODUCTION: Bone fractures fail to heal and form nonunions in roughly 5% of cases, with little expectation of spontaneous healing thereafter. We present a systematic review and meta-analysis of published papers that describe nonunions treated with low-intensity pulsed ultrasound (LIPUS). METHODS: Articles in PubMed, Ovid MEDLINE, CINAHL, AMED, EMBASE, Cochrane Library, and Scopus databases were searched, using an approach recommended by the Methodological Index for Non-Randomized Studies (MINORS), with a Level of Evidence rating by two reviewers independently...
May 15, 2017: Injury
https://www.readbyqxmd.com/read/28531379/the-association-between-an-inflammatory-diet-and-global-cognitive-function-and-incident-dementia-in-older-women-the-women-s-health-initiative-memory-study
#10
Kathleen M Hayden, Daniel P Beavers, Susan E Steck, James R Hebert, Fred K Tabung, Nitin Shivappa, Ramon Casanova, JoAnn E Manson, Claudia B Padula, Elena Salmoirago-Blotcher, Linda G Snetselaar, Oleg Zaslavsky, Stephen R Rapp
INTRODUCTION: The Mediterranean and Dietary Approaches to Stop Hypertension diets have been associated with lower dementia risk. We evaluated dietary inflammatory potential in relation to mild cognitive impairment (MCI)/dementia risk. METHODS: Baseline food frequency questionnaires from n = 7085 women (aged 65-79 years) were used to calculate Dietary Inflammatory Index (DII) scores that were categorized into four groups. Cognitive function was evaluated annually, and MCI and all-cause dementia cases were adjudicated centrally...
May 19, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28531240/public-knowledge-and-understanding-of-dementia-evidence-from-a-national-survey-in-ireland
#11
Ronan W Glynn, Emer Shelley, Brian A Lawlor
Background: there is growing consensus around the importance of population level approaches which seek to improve public knowledge and awareness of dementia. Aim: to assess knowledge of the relationship between dementia and ageing, and of the risk and protective factors associated with it, among the general public in Ireland. Design: cross-sectional survey. Participants selected using quota sampling based on Census data. Methods: the final sample of 1,217 respondents provided estimates of dementia knowledge in the Irish population...
May 22, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28530016/assessment-of-caregiving-constructs-toward-a-personal-familial-group-and-cultural-construction-of-dementia-care-through-the-eyes-of-personal-construct-psychology
#12
Eradah O Hamad, Ahmad N AlHadi, Christopher J Lee, Marie Y Savundranayagam, Jeffrey D Holmes, Elizabeth Anne Kinsella, Andrew M Johnson
Conditions that cause cognitive impairment and behavioural and personality changes, such as Alzheimer's disease (AD) and related dementia, have global impact across cultures. However, the experience of dementia care can vary between individuals, families, formal caregivers, and social groups from various cultures. Self-reported measures, caregiving stress models, and conceptual theories have been developed to address the physical, financial, psychological, and social factors associated with the experience of dementia care...
May 22, 2017: Journal of Cross-cultural Gerontology
https://www.readbyqxmd.com/read/28529871/subtle-alterations-in-cerebrovascular-reactivity-in-mild-cognitive-impairment-detected-by-graph-theoretical-analysis-and-not-by-the-standard-approach
#13
Carlos A Sánchez-Catasús, Gretel Sanabria-Diaz, Antoon Willemsen, Eduardo Martinez-Montes, Juan Samper-Noa, Angel Aguila-Ruiz, Ronald Boellaard, Peter De Deyn, Rudi A J O Dierckx, Lester Melie-Garcia
There is growing support that cerebrovascular reactivity (CVR) in response to a vasodilatory challenge, also defined as the cerebrovascular reserve, is reduced in Alzheimer's disease dementia. However, this is less clear in patients with mild cognitive impairment (MCI). The current standard analysis may not reflect subtle abnormalities in CVR. In this study, we aimed to investigate vasodilatory-induced changes in the topology of the cerebral blood flow correlation (CBFcorr) network to study possible network-related CVR abnormalities in MCI...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28528321/omega-3-fatty-acids-lipids-and-apoe-lipidation-in-alzheimer-s-disease-a-rationale-for-multi-nutrient-dementia-prevention
#14
Marcus O Grimm, Daniel Michaelson, Tobias Hartmann
In the last decade it has become obvious that Alzheimer's disease (AD) is closely linked to changes in lipids or lipid metabolism. One of the main pathological hallmarks of AD is amyloid-β (Aβ) deposition. Aβ is derived from sequential proteolytic processing of the amyloid precursor protein (APP). Interestingly, both, the APP and all APP secretases are transmembrane proteins which cleave APP close to and in the lipid bilayer. Moreover, apolipoprotein E4 (apoE4) has been identified as the most prevalent genetic risk factor for AD...
May 20, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28526550/impact-of-first-eye-versus-second-eye-cataract-surgery-on-visual-function-and-quality-of-life
#15
Nakul S Shekhawat, Michael V Stock, Elizabeth F Baze, Mary K Daly, David E Vollman, Mary G Lawrence, Amy S Chomsky
PURPOSE: To compare the impact of first eye versus second eye cataract surgery on visual function and quality of life. DESIGN: Cohort study. PARTICIPANTS: A total of 328 patients undergoing separate first eye and second eye phacoemulsification cataract surgeries at 5 veterans affairs centers in the United States. Patients with previous ocular surgery, postoperative endophthalmitis, postoperative retinal detachment, reoperation within 30 days, dementia, anxiety disorder, hearing difficulty, or history of drug abuse were excluded...
May 16, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28523966/relationship-centered-dementia-care-insights-from-a-community-based-culture-change-coalition
#16
Lorna de Witt, Darla Fortune
This article reports on the work of a community-based culture change coalition affiliated with the Partnerships in Dementia Care Alliance, a research network committed to strengthening dementia care through supporting relationship-centered care approaches. Research to date emphasizes negative aspects of dementia care relationships. Drawing on data the culture change coalition collected as part of their culture change work using participatory action research guided by appreciative inquiry, this article examines what relationship qualities contributed to positive dementia care experiences and how positive relationships were created...
January 1, 2017: Dementia
https://www.readbyqxmd.com/read/28522892/enhancing-communication-in-adults-with-dementia-and-age-related-hearing-loss
#17
REVIEW
Sara K Mamo, Esther Oh, Frank R Lin
For many adults with dementia, age-related hearing loss is undiagnosed and/or untreated. Untreated hearing loss can exacerbate common dementia-related behavioral symptoms, such as depression, apathy, agitation. Despite the potential benefits to the individual and the family, pursuing and adopting hearing aids for persons with dementia presents with many challenges. As such, this group of vulnerable older adults is well suited for alternative approaches that adopt an interventional audiology framework. This article reviews alternative hearing care models that we have tested when working with older adults with cognitive impairments...
May 2017: Seminars in Hearing
https://www.readbyqxmd.com/read/28521264/resisting-decay-on-disposal-valuation-and-care-in-a-dementia-nursing-home-in-denmark
#18
Iben M Gjødsbøl, Lene Koch, Mette N Svendsen
This paper approaches institutionalized dementia care as a site of societal disposal, valuation, and care for human life. Drawing upon six weeks of ethnographic fieldwork and ten qualitative interviews carried out in a Danish dementia nursing home in 2014, we analyze how nursing home staff, through everyday care, uphold the value of life for residents in severe mental and physical decline. We argue that life's worth is established when residents gain qualities of personhood and agency through substitution processes carried out by staff...
May 10, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28520598/imaging-plus-x-multimodal-models-of-neurodegenerative-disease
#19
Neil P Oxtoby, Daniel C Alexander
PURPOSE OF REVIEW: This article argues that the time is approaching for data-driven disease modelling to take centre stage in the study and management of neurodegenerative disease. The snowstorm of data now available to the clinician defies qualitative evaluation; the heterogeneity of data types complicates integration through traditional statistical methods; and the large datasets becoming available remain far from the big-data sizes necessary for fully data-driven machine-learning approaches...
May 16, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28514961/how-many-people-will-need-palliative-care-in-2040-past-trends-future-projections-and-implications-for-services
#20
S N Etkind, A E Bone, B Gomes, N Lovell, C J Evans, I J Higginson, F E M Murtagh
BACKGROUND: Current estimates suggest that approximately 75% of people approaching the end-of-life may benefit from palliative care. The growing numbers of older people and increasing prevalence of chronic illness in many countries mean that more people may benefit from palliative care in the future, but this has not been quantified. The present study aims to estimate future population palliative care need in two high-income countries. METHODS: We used mortality statistics for England and Wales from 2006 to 2014...
May 18, 2017: BMC Medicine
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