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Dementia prediction

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https://www.readbyqxmd.com/read/29786922/finding-factors-that-predict-treatment-resistant-depression-results-of-a-cohort-study
#1
M Soledad Cepeda, Jenna Reps, Patrick Ryan
BACKGROUND: Treatment for depressive disorders often requires subsequent interventions. Patients who do not respond to antidepressants have treatment-resistant depression (TRD). Predicting who will develop TRD may help healthcare providers make more effective treatment decisions. We sought to identify factors that predict TRD in a real-world setting using claims databases. METHODS: A retrospective cohort study was conducted in a US claims database of adult subjects with newly diagnosed and treated depression with no mania, dementia, and psychosis...
May 22, 2018: Depression and Anxiety
https://www.readbyqxmd.com/read/29782317/dementia-research-populations-progress-problems-and-predictions
#2
Sally Hunter, Nadja Smailagic, Carol Brayne
Alzheimer's disease (AD) is a clinicopathologically defined syndrome leading to cognitive impairment. Following the recent failures of amyloid-based randomized controlled trials to change the course of AD, there are growing calls for a re-evaluation of basic AD research. Epidemiology offers one approach to integrating the available evidence. Here we examine relationships between evidence from population-based, clinicopathological studies of brain aging and a range of hypotheses from all areas of AD research...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29782314/a-retrospective-belgian-multi-center-mri-biomarker-study-in-alzheimer-s-disease-remember
#3
Ellis Niemantsverdriet, Annemie Ribbens, Christine Bastin, Florence Benoit, Bruno Bergmans, Jean-Christophe Bier, Roxanne Bladt, Lene Claes, Peter Paul De Deyn, Olivier Deryck, Bernard Hanseeuw, Adrian Ivanoiu, Jean-Claude Lemper, Eric Mormont, Gaëtane Picard, Eric Salmon, Kurt Segers, Anne Sieben, Dirk Smeets, Hanne Struyfs, Evert Thiery, Jos Tournoy, Eric Triau, Anne-Marie Vanbinst, Jan Versijpt, Maria Bjerke, Sebastiaan Engelborghs
BACKGROUND: Magnetic resonance imaging (MRI) acquisition/processing techniques assess brain volumes to explore neurodegeneration in Alzheimer's disease (AD). OBJECTIVE: We examined the clinical utility of MSmetrix and investigated if automated MRI volumes could discriminate between groups covering the AD continuum and could be used as a predictor for clinical progression. METHODS: The Belgian Dementia Council initiated a retrospective, multi-center study and analyzed whole brain (WB), grey matter (GM), white matter (WM), cerebrospinal fluid (CSF), cortical GM (CGM) volumes, and WM hyperintensities (WMH) using MSmetrix in the AD continuum...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29780874/the-personalized-alzheimer-s-disease-cortical-thickness-index-predicts-likely-pathology-and-clinical-progression-in-mild-cognitive-impairment
#4
Annie M Racine, Michael Brickhouse, David A Wolk, Bradford C Dickerson
Introduction: An Alzheimer's disease (AD) biomarker adjusted for age-related brain changes should improve specificity for AD-related pathological burden. Methods: We calculated a brain-age-adjusted "personalized AD cortical thickness index" (pADi) in mild cognitive impairment patients from the Alzheimer's Disease Neuroimaging Initiative. We performed receiver operating characteristic analysis for discrimination between patients with and without cerebrospinal fluid evidence of AD and logistic regression in an independent sample to determine if a dichotomized pADi predicted conversion to AD dementia...
2018: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/29779682/predicting-alpha-synuclein-pathology-by-rem-sleep-behavior-disorder-diagnosis
#5
David R Shprecher, Charles H Adler, Nan Zhang, Joseph G Hentz, Geidy E Serrano, Brittany N Dugger, Holly A Shill, Rodolfo Savica, John N Caviness, Marwan N Sabbagh, Christine M Belden, Erika Driver-Dunckley, Shyamal H Mehta, Lucia I Sue, Kathryn J Davis, Edward Zamrini, Thomas G Beach
Inability to accurately diagnose Lewy type alpha-synucleinopathy (LTS) pre-mortem has been a major obstacle to clinical care and research. Probable REM sleep behavior disorder (PRBD) diagnosed with support of instruments such as the Mayo Sleep Questionnaire (MSQ) may provide a cost effective means of predicting LTS. Since 2007, 602 subjects in the Arizona Study of Aging and Neurodegenerative Disorders had clinician assessment for PRBD (298 with, 304 without support of the MSQ), completed cognitive and movement examinations, and had neuropathological assessment...
May 17, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29779432/performance-validity-in-older-adults-observed-versus-predicted-false-positive-rates-in-relation-to-number-of-tests-administered
#6
Jeremy J Davis
INTRODUCTION: This study examined false positive rates on embedded performance validity tests (PVTs) in older adults grouped by cognitive status. METHOD: The research design involved secondary analysis of data from the National Alzheimer's Coordinating Center database. Participants (N = 22,688) were grouped by cognitive status: normal (n = 10,319), impaired (n = 1,194), amnestic or nonamnestic mild cognitive impairment (MCI; n = 5,414), and dementia (n = 5,761)...
May 20, 2018: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/29779138/cognitive-syndromes-after-the-first-stroke
#7
Denisa Salihović, Dževdet Smajlović, Milija Mijajlović, Emina Zoletić, Omer Ć Ibrahimagić
AIM: The aim of this study is to determine impairments of certain cognitive functions in certain vascular cognitive syndromes and to identify predictors of dementia. PATIENTS AND METHODS: One-year prospective study included 275 patients, who were hospitalized at the Department of Neurology Tuzla and therefore fulfilled certain criteria. Patients were divided into following subgroups of vascular cognitive impairment (VCI): dementia of strategic infarct (DSI), cortical dementia (CD), sub cortical dementia (SCD), hemorrhagic dementia (HD), and patients without dementia...
May 19, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/29779045/clinical-utility-of-fdg-pet-in-parkinson-s-disease-and-atypical-parkinsonism-associated-with-dementia
#8
REVIEW
Zuzana Walker, Federica Gandolfo, Stefania Orini, Valentina Garibotto, Federica Agosta, Javier Arbizu, Femke Bouwman, Alexander Drzezga, Peter Nestor, Marina Boccardi, Daniele Altomare, Cristina Festari, Flavio Nobili
PURPOSE: There are no comprehensive guidelines for the use of FDG PET in the following three clinical scenarios: (1) diagnostic work-up of patients with idiopathic Parkinson's disease (PD) at risk of future cognitive decline, (2) discriminating idiopathic PD from progressive supranuclear palsy, and (3) identifying the underlying neuropathology in corticobasal syndrome. METHODS: We therefore performed three literature searches and evaluated the selected studies for quality of design, risk of bias, inconsistency, imprecision, indirectness and effect size...
May 19, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29771729/self-regulation-and-executive-functioning-as-related-to-survival-in-motor-neuron-disease-preliminary-findings
#9
Natasha E Garcia-Willingham, Abbey R Roach, Edward J Kasarskis, Suzanne C Segerstrom
OBJECTIVE: Disease progression varies widely among patients with motor neuron disease (MND). Patients with MND and coexisting dementia have shorter survival. However, implications of mild cognitive and behavioral difficulties are unclear. The present study examined the relative contribution of executive functioning and self-regulation difficulties on survival over a 6-year period among patients with MND, who scored largely within normal limits on cognitive and behavioral indices. METHODS: Patients with MND (N=37, age=59...
May 16, 2018: Psychosomatic Medicine
https://www.readbyqxmd.com/read/29770802/assessing-social-quality-of-sheltered-independent-housing-challenges-of-scale-and-group-mix
#10
T G M Spierings, P M Ache
Forecasts for many cities and regions in Europe predict a growing share of 'elderly' people in the overall population. In addition to this general ageing process, the number of very old people is of specific importance for the issue under discussion. This article looks at sheltered independent housing and living. In particular, the article presents the results of a quantitative and qualitative multidisciplinary study of those facilities in the Netherlands. The research provides insight into the effect of physical scale and group mix on the social quality of sheltered independent housing...
2018: Journal of housing and the built environment: HBE
https://www.readbyqxmd.com/read/29763917/relevance-of-dementia-in-atrial-fibrillation-patients-within-a-specific-european-health-care-area
#11
Moisés Rodríguez-Mañero, Estrella López-Pardo, Alberto Cordero, Omar Kreidieh, José Novo Platas, Luis Valdés, Adrian Cid-Menendez, Javier García-Seara, María Pereira-Vázquez, Jose-Luis Martínez-Sande, Alberto Ruano, Carlos Peña-Gil, Pilar Mazón, Jose María García-Acuña, José Ramón González-Juanatey
INTRODUCTION: Atrial fibrillation might increase the risk of dementia. We aim to test the hypothesis that dementia could reclassify the actual risk of stroke and death predicted by the CHA2DS2-VASc in patients with atrial fibrillation (AF). METHODS: A prospective study performed in a specific health care area. RESULTS: From our health care area (n = 348,985), throughout 2013, AF was codified in 7,990 (2.08%). Mean age was 76.83 ± 10.5, mean CHA2DS2-VASc = 3...
May 15, 2018: Neuroepidemiology
https://www.readbyqxmd.com/read/29761569/cognitive-and-functional-progression-in-alzheimer-disease-a-prediction-model-of-latent-classes
#12
Miriam L Haaksma, Amaia Calderón-Larrañaga, Marcel G M Olde Rikkert, René J F Melis, Jeannie-Marie S Leoutsakos
OBJECTIVE: We sought to replicate a previously published prediction model for progression, developed in the Cache County Dementia Progression Study, using a clinical cohort from the National Alzheimer's Coordinating Center. METHODS: We included 1120 incident Alzheimer disease (AD) cases with at least one assessment after diagnosis, originating from 31 AD centres from the United States. Trajectories of the Mini-Mental State Examination (MMSE) and Clinical Dementia Rating sum of boxes (CDR-sb) were modelled jointly over time using parallel-process growth mixture models in order to identify latent classes of trajectories...
May 15, 2018: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/29761124/progranulin-levels-in-blood-in-alzheimer-s-disease-and-mild-cognitive-impairment
#13
Yonatan A Cooper, Daniel Nachun, Deepika Dokuru, Zhongan Yang, Anna M Karydas, Ginette Serrero, Binbin Yue, Adam L Boxer, Bruce L Miller, Giovanni Coppola
Objective: Changes in progranulin ( GRN ) expression have been hypothesized to alter risk for Alzheimer's disease (AD). We investigated the relationship between GRN expression in peripheral blood and clinical diagnosis of AD and mild cognitive impairment (MCI). Methods: Peripheral blood progranulin gene expression was measured, using microarrays from Alzheimer's ( n = 186), MCI ( n = 118), and control ( n = 204) subjects from the University of California San Francisco Memory and Aging Center (UCSF-MAC) and two independent published series (AddNeuroMed and ADNI)...
May 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29760644/an-algorithm-for-preclinical-diagnosis-of-alzheimer-s-disease
#14
REVIEW
Tapan K Khan
Almost all Alzheimer's disease (AD) therapeutic trials have failed in recent years. One of the main reasons for failure is due to designing the disease-modifying clinical trials at the advanced stage of the disease when irreversible brain damage has already occurred. Diagnosis of the preclinical stage of AD and therapeutic intervention at this phase, with a perfect target, are key points to slowing the progression of the disease. Various AD biomarkers hold enormous promise for identifying individuals with preclinical AD and predicting the development of AD dementia in the future, but no single AD biomarker has the capability to distinguish the AD preclinical stage...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760643/combining-polygenic-hazard-score-with-volumetric-mri-and-cognitive-measures-improves-prediction-of-progression-from-mild-cognitive-impairment-to-alzheimer-s-disease
#15
Karolina Kauppi, Chun Chieh Fan, Linda K McEvoy, Dominic Holland, Chin Hong Tan, Chi-Hua Chen, Ole A Andreassen, Rahul S Desikan, Anders M Dale
Improved prediction of progression to Alzheimer's Disease (AD) among older individuals with mild cognitive impairment (MCI) is of high clinical and societal importance. We recently developed a polygenic hazard score (PHS) that predicted age of AD onset above and beyond APOE . Here, we used data from the Alzheimer's Disease Neuroimaging Initiative (ADNI) to further explore the potential clinical utility of PHS for predicting AD development in older adults with MCI. We examined the predictive value of PHS alone and in combination with baseline structural magnetic resonance imaging (MRI) data on performance on the Mini-Mental State Exam (MMSE)...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760023/improving-prediction-of-dementia-in-primary-care
#16
Susan Jongstra, Willem A van Gool, Eric P Moll van Charante, Jan-Willem van Dalen, Lisa S M Eurelings, Edo Richard, Suzanne A Ligthart
PURPOSE: The Mini-Mental State Examination (MMSE) is one of the most widely used instruments to screen for cognitive deficits; however, this instrument alone is not sensitive enough to detect early symptoms of dementia. We aimed to investigate whether additionally using the Visual Association Test (VAT) improves the predictive value of the MMSE score for development of dementia. METHODS: Analyses were based on data from 2,690 primary care patients aged 70 to 78 years who participated in the Prevention of Dementia by Intensive Vascular Care (preDIVA) trial...
May 2018: Annals of Family Medicine
https://www.readbyqxmd.com/read/29758945/a-10-year-follow-up-of-adiposity-and-dementia-in-swedish-adults-aged-70-years-and-older
#17
Ilse A C Arnoldussen, Valter Sundh, Kristoffer Bäckman, Silke Kern, Svante Östling, Kaj Blennow, Henrik Zetterberg, Ingmar Skoog, Amanda J Kiliaan, Deborah R Gustafson
BACKGROUND: Adiposity measured in mid- or late-life and estimated using anthropometric measures such as body mass index (BMI) and waist-to-hip ratio (WHR), or metabolic markers such as blood leptin and adiponectin levels, is associated with late-onset dementia risk. However, during later life, this association may reverse and aging- and dementia-related processes may differentially affect adiposity measures. OBJECTIVE: We explored associations of concurrent BMI, WHR, and blood leptin and high molecular weight adiponectin levels with dementia occurrence...
May 11, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29756803/attitude-toward-own-aging-as-a-risk-factor-for-cognitive-disorder-in-old-age-12-year-evidence-from-the-ilse-study
#18
Jelena S Siebert, Hans-Werner Wahl, Christina Degen, Johannes Schröder
Previous research has demonstrated the harmful impact of subjective aging processes (e.g., negative age self-stereotyping) on normal cognitive aging in different domains of cognitive functioning, such as memory, executive function, and fluid abilities. Recently, subjective aging has also been linked to important biomarkers of Alzheimer's disease (AD) and dementia-related outcomes, indicating associations with pathological cognitive aging. With data from the Interdisciplinary Longitudinal Study of Adult Development and Aging (ILSE), the present study extends this research by examining the long-term effect of attitude toward own aging (ATOA) on expert-based clinical diagnosis of mild cognitive impairment (MCI) and AD in old age...
May 2018: Psychology and Aging
https://www.readbyqxmd.com/read/29752159/predictors-of-falls-and-fractures-leading-to-hospitalization-in-people-with-dementia-a-representative-cohort-study
#19
Shalini Sharma, Christoph Mueller, Robert Stewart, Nicola Veronese, Davy Vancampfort, Ai Koyanagi, Sarah E Lamb, Gayan Perera, Brendon Stubbs
OBJECTIVES: Investigate predictors of falls and fractures leading to hospitalization in a large cohort of people with dementia. DESIGN: A retrospective cohort study. SETTING AND PARTICIPANTS: People with diagnosed dementia between January 2007 and March 2013, aged >65 years, were assembled using data from the Maudsley Biomedical Research Centre Case Register, from 4 boroughs in London serving a population of 1.3 million people. MEASURES: Falls and/or fractures leading to hospitalization were ascertained from linked national records...
May 2, 2018: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/29752034/validity-of-a-computerized-population-registry-of-dementia-based-on-clinical-databases
#20
J Mar, A Arrospide, M Soto-Gordoa, M Machón, Á Iruin, P Martinez-Lage, A Gabilondo, F Moreno-Izco, A Gabilondo, L Arriola
INTRODUCTION: The handling of information through digital media allows innovative approaches for identifying cases of dementia through computerized searches within the clinical databases that include systems for coding diagnoses. The aim of this study was to analyze the validity of a dementia registry in Gipuzkoa based on the administrative and clinical databases existing in the Basque Health Service. METHODS: This is a descriptive study based on the evaluation of available data sources...
May 8, 2018: Neurología: Publicación Oficial de la Sociedad Española de Neurología
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