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Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring

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https://www.readbyqxmd.com/read/28337476/cerebrospinal-fluid-biomarker-examination-as-a-tool-to-discriminate-behavioral-variant-frontotemporal-dementia-from-primary-psychiatric%C3%A2-disorders
#1
Everard G B Vijverberg, Annemiek Dols, Welmoed A Krudop, Marta Del Campo Milan, Cora J Kerssens, Flora Gossink, Niels D Prins, Max L Stek, Philip Scheltens, Charlotte E Teunissen, Yolande A L Pijnenburg
INTRODUCTION: To prospectively determine the diagnostic value of cerebrospinal fluid (CSF) levels total-tau (tau) to amyloid-β1-42 ratio (Aβ1-42) ratio (tau/Aβ1-42 ratio), phosphorylated-tau (p-tau) to tau ratio (p-tau/tau ratio), neurofilament light chain (NfL) and YKL40 in the late-onset frontal lobe syndrome, in particular for the differential diagnosis of behavioral variant frontotemporal dementia (bvFTD) versus primary psychiatric disorders (PSY). METHOD: We included patients with a multidisciplinary 2-year-follow-up diagnosis of probable/definite bvFTD (n = 22) or PSY (n = 25), who underwent a detailed neuropsychiatric clinical examination, neuropsychological test battery, and magnetic resonance imaging at baseline...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28337475/age-at-injury-is-associated-with-the-long-term-cognitive-outcome-of-traumatic-brain-injuries
#2
Wei Li, Shannon L Risacher, Thomas W McAllister, Andrew J Saykin
INTRODUCTION: The association between age at injury (AAI) and long-term cognitive outcome of traumatic brain injuries (TBI) is debatable. METHODS: Eligible participants with a history of TBI from Alzheimer's Disease Neuroimaging Initiative were divided into a childhood TBI (cTBI) group (the AAI ≤ 21 years old) and an adult TBI (aTBI) group (the AAI > 21 years old). RESULTS: The cTBI group has a higher Everyday Cognition total score than the aTBI group...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28317009/development-of-an-instrument-to-assess-social-functioning-in-dementia-the-social-functioning-in-dementia-scale-sf-dem
#3
Andrew Sommerlad, David Singleton, Rebecca Jones, Sube Banerjee, Gill Livingston
INTRODUCTION: Social functioning is a core domain in the life of people with dementia, but there is no accepted instrument to measure it. We aimed to develop the Social Functioning in Dementia (SF-DEM) scale and test its psychometric properties for assessing social function in people with dementia. METHODS: We interviewed people with mild dementia and family caregivers to develop patient and caregiver-rated SF-DEM versions and refined them through interviews with health care professionals...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28289701/identifying-memory-impairment-and-early-dementia-in-primary-care
#4
Ellen Grober, Dorothy Wakefield, Amy R Ehrlich, Peter Mabie, Richard B Lipton
INTRODUCTION: This study examined the operating characteristics of two-stage case finding to identify memory impairment and very mild dementia. METHODS: Primary care patients underwent two-stage testing and a subsequent diagnostic assessment to assess outcomes. Patients who screen positive for subjective cognitive decline on the Informant Questionnaire on Cognitive Decline in the Elderly undergo memory testing with the Free and Cued Selective Reminding Test with Immediate Recall...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28289700/apolipoproteins-and-their-subspecies-in-human-cerebrospinal-fluid-and-plasma
#5
Manja Koch, Jeremy D Furtado, Kim Falk, Frank Leypoldt, Kenneth J Mukamal, Majken K Jensen
INTRODUCTION: Subspecies of apolipoproteins can be defined by fractionating apolipoproteins based on the presence and absence of coexisting apolipoproteins. METHODS: We determined age- and sex-adjusted correlations of enzyme-linked immunosorbent assay-measured plasma and cerebrospinal fluid (CSF) apolipoproteins (apoA-I, apoC-III, apoE, and apoJ) or apolipoprotein subspecies (apoA-I with and without apoC-III, ApoE, or apoJ; apoE with and without apoC-III or apoJ) in 22 dementia-free participants...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28275702/pathophysiologic-relationship-between-alzheimer-s-disease-cerebrovascular-disease-and-cardiovascular-risk-a-review-and-synthesis
#6
REVIEW
Cláudia Y Santos, Peter J Snyder, Wen-Chih Wu, Mia Zhang, Ana Echeverria, Jessica Alber
As the population ages due to demographic trends and gains in life expectancy, the incidence and prevalence of dementia increases, and the need to understand the etiology and pathogenesis of dementia becomes ever more urgent. Alzheimer's disease (AD), the most common form of dementia, is a complex disease, the mechanisms of which are poorly understood. The more we learn about AD, the more questions are raised about our current conceptual models of disease. In the absence of a cure or the means by which to slow disease progress, it may be prudent to apply our current knowledge of the intersection between AD, cardiovascular disease, and cerebrovascular disease to foster efforts to delay or slow the onset of AD...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28275701/sleep-wake-cycle-disturbances-in-elderly-acute-general-medical-inpatients-longitudinal-relationship-to-delirium-and-dementia
#7
James M FitzGerald, Niamh O'Regan, Dimitrios Adamis, Suzanne Timmons, Colum P Dunne, Paula T Trzepacz, David J Meagher
INTRODUCTION: Sleep disturbances in elderly medical inpatients are common, but their relationship to delirium and dementia has not been studied. METHODS: Sleep and delirium status were assessed daily for a week in 145 consecutive newly admitted elderly acute general hospital patients using the Delirium Rating Scale-Revised-98 (DRS-R98), Diagnostic and Statistical Manual 5, and Richards-Campbell Sleep Quality Scale measures. The longitudinal relationship between DRS-R98 and Richards-Campbell Sleep Quality Scale sleep scores and delirium, also with dementia as a covariate, was evaluated using generalized estimating equation logistic regression...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28275700/peripheral-inflammatory-markers-indicate-microstructural-damage-within-periventricular-white-matter-hyperintensities-in%C3%A2-alzheimer-s-disease-a-preliminary-report
#8
Walter Swardfager, Di Yu, Joel Ramirez, Hugo Cogo-Moreira, Gregory Szilagyi, Melissa F Holmes, Christopher J M Scott, Gustavo Scola, Pak C Chan, Jialun Chen, Parco Chan, Demetrios J Sahlas, Nathan Herrmann, Krista L Lanctôt, Ana C Andreazza, Jacqueline A Pettersen, Sandra E Black
INTRODUCTION: White matter hyperintensities (WMH) presumed to reflect cerebral small vessel disease and increased peripheral inflammatory markers are found commonly in Alzheimer's disease (AD), but their interrelationships remain unclear. METHODS: Inflammatory markers were assayed in 54 elderly participants (n = 16 with AD). Periventricular WMH were delineated from T1, T2/proton density, and fluid-attenuated magnetic resonance imaging using semiautomated fuzzy lesion extraction and coregistered with maps of fractional anisotropy (FA), a measure of microstructural integrity assessed using diffusion tensor imaging...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28275699/a-comparison-of-theoretical-and-statistically-derived-indices-for-predicting-cognitive-decline
#9
Holly Wilhalme, Naira Goukasian, Fransia De Leon, Angie He, Kristy S Hwang, Ellen Woo, David Elashoff, Yan Zhou, John M Ringman, Liana G Apostolova
INTRODUCTION: Both theoretical and statistically derived approaches have been used in research settings for predicting cognitive decline. METHODS: Fifty-eight cognitively normal (NC) and 71 mild cognitive impairment (MCI) subjects completed a comprehensive cognitive battery for up to 5 years of follow-up. Composite indices of cognitive function were derived using a classic theoretical approach and exploratory factor analysis (EFA). Cognitive variables comprising each factor were averaged to form the EFA composite indices...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28275698/retinal-thickness-in-alzheimer-s-disease-a-systematic-review-and%C3%A2-meta-analysis
#10
Jurre den Haan, Frank D Verbraak, Pieter Jelle Visser, Femke H Bouwman
INTRODUCTION: Retinal characteristics are increasingly recognized as biomarkers for neurodegenerative diseases. Retinal thickness measured by optical coherence tomography may reflect the presence of Alzheimer's disease (AD). We performed a meta-analysis on retinal thickness in AD and mild cognitive impairment (MCI) patients and healthy controls (HCs). METHODS: We selected 25 studies with measurements of retinal thickness including 887 AD patients, 216 MCI patients, and 864 HCs that measured retinal thickness...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28275697/a-robust-biomarker-of-large-scale-network-failure-in-alzheimer-s-disease
#11
Daniela A Wiepert, Val J Lowe, David S Knopman, Bradley F Boeve, Jonathan Graff-Radford, Ronald C Petersen, Clifford R Jack, David T Jones
INTRODUCTION: Biomarkers for Alzheimer's disease (AD) pathophysiology have been developed that focus on various levels of brain organization. However, no robust biomarker of large-scale network failure has been developed. Using the recently introduced cascading network failure model of AD, we developed the network failure quotient (NFQ) as a biomarker of this process. METHODS: We developed and optimized the NFQ using our recently published analyses of task-free functional magnetic resonance imaging data in clinically normal (n = 43) and AD dementia participants (n = 28) from the Alzheimer's Disease Neuroimaging Initiative...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239641/macrovascular-and-microvascular-cerebral-blood-flow-in-adults-at-risk-for-alzheimer-s-disease
#12
Lindsay R Clark, Sara E Berman, Leonardo A Rivera-Rivera, Siobhan M Hoscheidt, Burcu F Darst, Corinne D Engelman, Howard A Rowley, Cynthia M Carlsson, Sanjay Asthana, Patrick Turski, Oliver Wieben, Sterling C Johnson
INTRODUCTION: Capillary hypoperfusion is reported in asymptomatic adults at-risk for Alzheimer's disease (AD), but the extent that can be explained by reduced flow in intracranial arteries is unknown. METHODS: One hundred fifty-five asymptomatic adults enriched for AD risk (mean age 61 years) completed arterial spin labeling (pcASL) and 4D-flow MRI sequences. Voxel-wise regression models investigated the relationship between mean flow in bilateral cerebral arteries and capillary perfusion, and tested potential moderators of this relationship...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239640/serum-il-8-is-a-marker-of-white-matter-hyperintensities-in-patients-with-alzheimer-s-disease
#13
Yanan Zhu, Yuek Ling Chai, Saima Hilal, M Kamran Ikram, Narayanaswamy Venketasubramanian, Boon-Seng Wong, Christopher P Chen, Mitchell K P Lai
INTRODUCTION: Neuroinflammation and cerebrovascular disease (CeVD) have been implicated in cognitive impairment and Alzheimer's disease (AD). The present study aimed to examine serum inflammatory markers in preclinical stages of dementia and in AD, as well as to investigate their associations with concomitant CeVD. METHODS: We performed a cross-sectional case-control study including 96 AD, 140 cognitively impaired no dementia (CIND), and 79 noncognitively impaired participants...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239639/alzheimer-s-biomarkers-in-daily-practice-abide-project-rationale-and-design
#14
Arno de Wilde, Ingrid S van Maurik, Marleen Kunneman, Femke Bouwman, Marissa Zwan, Eline A J Willemse, Geert Jan Biessels, Mirella Minkman, Ruth Pel, Niki S M Schoonenboom, Ellen M A Smets, Mike P Wattjes, Frederik Barkhof, Andrew Stephens, Erik J van Lier, Richard Batrla-Utermann, Philip Scheltens, Charlotte E Teunissen, Bart N M van Berckel, Wiesje M van der Flier
INTRODUCTION: The Alzheimer's biomarkers in daily practice (ABIDE) project is designed to translate knowledge on diagnostic tests (magnetic resonance imaging [MRI], cerebrospinal fluid [CSF], and amyloid positron emission tomography [PET]) to daily clinical practice with a focus on mild cognitive impairment (MCI). METHODS: ABIDE is a 3-year project with a multifaceted design and is structured into interconnected substudies using both quantitative and qualitative research methods...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239638/brain-amyloid-in-preclinical-alzheimer-s-disease-is-associated-with%C3%A2-increased-driving-risk
#15
Brian R Ott, Richard N Jones, Richard B Noto, Don C Yoo, Peter J Snyder, Justine N Bernier, David B Carr, Catherine M Roe
INTRODUCTION: Postmortem studies suggest that fibrillar brain amyloid places people at higher risk for hazardous driving in the preclinical stage of Alzheimer's disease (AD). METHODS: We administered driving questionnaires to 104 older drivers (19 AD, 24 mild cognitive impairment, and 61 cognitive normal) who had a recent (18)F-florbetapir positron emission tomography scan. We examined associations of amyloid standardized uptake value ratios with driving behaviors: traffic violations or accidents in the past 3 years...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239637/alzheimer-s-disease-the-influence-of-age-on-clinical-heterogeneity-through-the-human-brain-connectome
#16
Bradford C Dickerson, Michael Brickhouse, Scott McGinnis, David A Wolk
INTRODUCTION: One major factor that influences the heterogeneity of Alzheimer's disease (AD) is age: younger AD patients more frequently exhibit atypical forms of AD. We propose that this age-related heterogeneity can be understood better by considering age-related differences in atrophy in the context of large-scale brain networks subserving cognitive functions that contribute to memory. METHODS: We examined data from 75 patients with mild AD dementia from Alzheimer's Disease Neuroimaging Initiative...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28239636/cognitive-impairment-and-decline-in-cognitively-normal-older-adults-with-high-amyloid-%C3%AE-a-meta-analysis
#17
REVIEW
Jenalle E Baker, Yen Ying Lim, Robert H Pietrzak, Jason Hassenstab, Peter J Snyder, Colin L Masters, Paul Maruff
INTRODUCTION: This meta-analysis aimed to characterize the nature and magnitude of amyloid (Aβ)-related cognitive impairment and decline in cognitively normal (CN) older individuals. METHOD: MEDLINE Ovid was searched from 2012 to June 2016 for studies reporting relationships between cerebrospinal fluid or positron emission tomography (PET) Aβ levels and cognitive impairment (cross-sectional) and decline (longitudinal) in CN older adults. Neuropsychological data were classified into domains of episodic memory, executive function, working memory, processing speed, visuospatial function, semantic memory, and global cognition...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28229128/repetitive-head-impact-exposure-and-later-life-plasma-total-tau-in-former-national-football-league-players
#18
Michael L Alosco, Yorghos Tripodis, Johnny Jarnagin, Christine M Baugh, Brett Martin, Christine E Chaisson, Nate Estochen, Linan Song, Robert C Cantu, Andreas Jeromin, Robert A Stern
INTRODUCTION: Blood protein analysis of total tau (t-tau) may be a practical screening biomarker for chronic traumatic encephalopathy (CTE), a neurodegenerative tauopathy associated with repetitive head impact (RHI) exposure. We examined plasma t-tau in symptomatic former National Football League (NFL) players compared with controls and the relationship between RHI exposure and later-life plasma t-tau. METHODS: Ninety-six former NFL players (age 40-69) and 25 same-age controls underwent blood draw to determine plasma t-tau levels...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28229127/the-application-of-retinal-fundus-camera-imaging-in-dementia-a-systematic-review
#19
REVIEW
Sarah McGrory, James R Cameron, Enrico Pellegrini, Claire Warren, Fergus N Doubal, Ian J Deary, Baljean Dhillon, Joanna M Wardlaw, Emanuele Trucco, Thomas J MacGillivray
INTRODUCTION: The ease of imaging the retinal vasculature, and the evolving evidence suggesting this microvascular bed might reflect the cerebral microvasculature, presents an opportunity to investigate cerebrovascular disease and the contribution of microvascular disease to dementia with fundus camera imaging. METHODS: A systematic review and meta-analysis was carried out to assess the measurement of retinal properties in dementia using fundus imaging. RESULTS: Ten studies assessing retinal properties in dementia were included...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28229126/assessing-quality-of-life-in-alzheimer-s-disease-implications-for-clinical%C3%A2-trials
#20
Kristin Kahle-Wrobleski, Wenyu Ye, David Henley, Ann Marie Hake, Eric Siemers, Yun-Fei Chen, Hong Liu-Seifert
INTRODUCTION: Characterization of the quality of life (QOL) in Alzheimer's disease (AD) scale within the context of a clinical trial may inform its applicability in future trials. METHODS: Using data from 1322 patients enrolled in two phase-III studies (EXPEDITION 1 [NCT00905372] and 2 [NCT00904683]) of intravenous solanezumab in outpatients with mild AD dementia, correlations between patient- and caregiver-assessed QOL and between QOL and clinical outcome measures were examined...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
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