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Dementia and Geriatric Cognitive Disorders

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https://www.readbyqxmd.com/read/29886493/fully-automatic-speech-based-analysis-of-the-semantic-verbal-fluency-task
#1
Alexandra König, Nicklas Linz, Johannes Tröger, Maria Wolters, Jan Alexandersson, Phillipe Robert
BACKGROUND: Semantic verbal fluency (SVF) tests are routinely used in screening for mild cognitive impairment (MCI). In this task, participants name as many items as possible of a semantic category under a time constraint. Clinicians measure task performance manually by summing the number of correct words and errors. More fine-grained variables add valuable information to clinical assessment, but are time-consuming. Therefore, the aim of this study is to investigate whether automatic analysis of the SVF could provide these as accurate as manual and thus, support qualitative screening of neurocognitive impairment...
June 8, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29886490/sleep-disturbance-and-the-risk-of-cognitive-decline-or-clinical-conversion-in-the-adni-cohort
#2
Adam P Mecca, Hannah R Michalak, Julia W McDonald, Emily C Kemp, Erika A Pugh, Melinda L Becker, Marcia C Mecca, Christopher H van Dyck
BACKGROUND: We investigated the relationship between sleep disturbance and cognitive decline or clinical conversion in individuals with normal cognition (CN), as well as those with mild cognitive impairment (MCI) and dementia due to Alzheimer disease (AD-dementia). METHODS: Secondary analysis of 1,629 adults between 48 and 91 years of age with up to 24 months of follow-up from the ADNI (Alzheimer's Disease Neuroimaging Initiative), a longitudinal cohort study. RESULTS: Sleep disturbance was not associated with decline in memory, executive function, or global cognition...
June 8, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29886485/the-protective-effect-of-cantonese-mandarin-bilingualism-on-the-onset-of-alzheimer-disease
#3
Yifan Zheng, Qi Wu, Fengjuan Su, Yingying Fang, Jinsheng Zeng, Zhong Pei
BACKGROUND: Several studies have found that bilingualism can delay the age of onset of Alz-heimer disease (AD). The interpretation of these findings is that switching between two languages can enhance cognitive reserve. However, some studies have provided inconsistent results. Diverse language pairs used by the bilinguals in different studies may contribute to the discrepancies. Cantonese and Mandarin are widely used in southern China, and regarded as bilingualism. The present study aims to determine if Cantonese/Mandarin bilingualism can delay the onset of AD...
June 8, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29886477/distinct-clinical-features-and-outcomes-in-motor-neuron-disease-associated-with-behavioural-variant-frontotemporal-dementia
#4
Elena Cortés-Vicente, Janina Turon-Sans, Ellen Gelpi, Jordi Clarimón, Sergi Borrego-Écija, Oriol Dols-Icardo, Ignacio Illán-Gala, Alberto Lleó, Isabel Illa, Rafael Blesa, Ammar Al-Chalabi, Ricard Rojas-García
AIM: To determine the motor phenotype and outcome in a clinically ascertained group of patients with motor neuron disease (MND) and frontotemporal dementia (FTD). METHODS: This is an observational retrospective clinical study of patients fulfilling the clinical criteria for MND-FTD. A contemporary series of patients with amyotrophic lateral sclerosis (ALS) without dementia were included for comparison. Demographic, clinical, genetic, and neuropathological data were collected...
June 8, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29870984/cognitive-reserve-and-social-capital-accrued-in-early-and-midlife-moderate-the-relation-of-psychological-stress-to-cognitive-performance-in-old-age
#5
Andreas Ihle, Michel Oris, Julia Sauter, Ulrike Rimmele, Matthias Kliegel
AIMS: The present study set out to investigate the relation of psychological stress to cognitive performance and its interplay with key life course markers of cognitive reserve and social capital in a large sample of older adults. METHODS: We assessed cognitive performance (verbal abilities and processing speed) and psychological stress in 2,812 older adults. The Participants reported information on education, occupation, leisure activities, family, and close friends...
June 5, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29860257/anxiety-symptoms-in-older-adults-with-depression-are-associated-with-suicidality
#6
Anette Bakkane Bendixen, Knut Engedal, Geir Selbæk, Cecilie Bhandari Hartberg
OBJECTIVE: Anxiety symptoms are common in older adults with depression, but whether severe anxiety is associated with poorer outcomes of depression is unknown. The objective of the present study was to examine the association between severity of anxiety and severity of depression and physical illness, suicidality, and physical and cognitive functioning in older adults with depression. METHODS: We included 218 older adults with diagnoses of a depressive disorder according to the ICD-10 criteria; their mean age (SD) was 75...
June 1, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29843134/effect-of-emotion-and-type-of-encoding-on-memory-for-actions-verbal-and-subject-performed-tasks
#7
Céline Borg, Zineb Bouazza, Marielle Godeau, Jean-Claude Getenet, Hanna Chainay
BACKGROUND: The present study examines whether the interaction between emotion and the enactment effect (body involvement) improves memory in people with Alzheimer disease (AD). METHODS: Two experiments with drawings of actions were conducted, in which two types of encoding were used: motor and verbal. In experiment 1, with 13 AD patients and 13 older healthy adults, the encoding was incidental. In experiment 2, with 17 mild AD patients and 21 older healthy adults, it was intentional...
May 29, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29788013/cerebrospinal-fluid-bace1-activity-and-sa%C3%AE-pp%C3%AE-as-biomarker-candidates-of-alzheimer-s-disease
#8
Panagiotis Alexopoulos, Nathalie Thierjung, Timo Grimmer, Marion Ortner, Polychronis Economou, Konstantinos Assimakopoulos, Philippos Gourzis, Antonios Politis, Robert Perneczky
BACKGROUND/AIMS: The utility of β-site amyloid-β precursor protein (AβPP) cleaving enzyme 1 (BACE1) activity and soluble AβPP β (sAβPPβ) levels in cerebrospinal fluid (CSF) in detecting Alzheimer's disease (AD) is still elusive. METHODS: BACE1 activity and sAβPPβ concentration were measured in patients with AD dementia (n = 56) and mild cognitive impairment (MCI) due to AD (n = 76) with abnormal routine AD CSF markers, in patients with MCI with normal CSF markers (n = 39), and in controls without preclinical AD (n = 48)...
May 22, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29734182/a-systematic-review-and-meta-analysis-of-the-effectiveness-of-acetylcholinesterase-inhibitors-and-memantine-in-treating-the-cognitive-symptoms-of-dementia
#9
Ruth Knight, Mizanur Khondoker, Nicholas Magill, Robert Stewart, Sabine Landau
BACKGROUND: Acetylcholinesterase inhibitors (AChEIs) and memantine are commonly used in the management of dementia. In routine clinical practice, dementia is often monitored via the Mini-Mental State Examination (MMSE). We conducted a systematic review and meta-analysis of the effects of these drugs on MMSE scores. SUMMARY: Eighty trials were identified. Pooled effect estimates were in favour of both AChEIs and memantine at 6 months. Meta-regression indicated that dementia subtype was a moderator of AChEI treatment effect, with the effect of treatment versus control twice as high for patients with Parkinson disease dementia/ dementia with Lewy bodies (2...
May 7, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29694972/quality-of-life-in-people-with-young-onset-alzheimer-s-dementia-and-frontotemporal-dementia
#10
Lara Hvidsten, Knut Engedal, Geir Selbæk, Torgeir Bruun Wyller, Frøydis Bruvik, Hege Kersten
AIMS: The aims of this study were to compare quality of life (QOL) in people with young-onset Alzheimer's (AD) and frontotemporal (FTD) dementia, explore variables associated with QOL, and compare QOL in young-onset dementia (YOD) and late-onset dementia (LOD). METHODS: Cross-sectional data from a Nordic multicenter study of 50 community-dwelling participants with AD and 38 with FTD were included. A comparison group consisted of 100 people with LOD. QOL was measured using self-reported Euro-QOL 5-Dimension and the proxy version of Quality of Life in Alzheimer's Disease (QOL-AD) questionnaire...
April 25, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29486463/genetic-variation-in-genes-underlying-diverse-dementias-may-explain-a-small-proportion-of-cases-in-the-alzheimer-s-disease-sequencing-project
#11
Elizabeth E Blue, Joshua C Bis, Michael O Dorschner, Debby W Tsuang, Sandra M Barral, Gary Beecham, Jennifer E Below, William S Bush, Mariusz Butkiewicz, Carlos Cruchaga, Anita DeStefano, Lindsay A Farrer, Alison Goate, Jonathan Haines, Jim Jaworski, Gyungah Jun, Brian Kunkle, Amanda Kuzma, Jenny J Lee, Kathryn L Lunetta, Yiyi Ma, Eden Martin, Adam Naj, Alejandro Q Nato, Patrick Navas, Hiep Nguyen, Christiane Reitz, Dolly Reyes, William Salerno, Gerard D Schellenberg, Sudha Seshadri, Harkirat Sohi, Timothy A Thornton, Otto Valadares, Cornelia van Duijn, Badri N Vardarajan, Li-San Wang, Eric Boerwinkle, Josée Dupuis, Margaret A Pericak-Vance, Richard Mayeux, Ellen M Wijsman
BACKGROUND/AIMS: The Alzheimer's Disease Sequencing Project (ADSP) aims to identify novel genes influencing Alzheimer's disease (AD). Variants within genes known to cause dementias other than AD have previously been associated with AD risk. We describe evidence of co-segregation and associations between variants in dementia genes and clinically diagnosed AD within the ADSP. METHODS: We summarize the properties of known pathogenic variants within dementia genes, describe the co-segregation of variants annotated as "pathogenic" in ClinVar and new candidates observed in ADSP families, and test for associations between rare variants in dementia genes in the ADSP case-control study...
February 27, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29723870/functional-disconnectivity-during-inter-task-resting-state-in-dementia-with-lewy-bodies
#12
Eléna Chabran, Daniel Roquet, Daniel Gounot, Marion Sourty, Jean-Paul Armspach, Frédéric Blanc
AIMS: Limited research has been done on the functional connectivity in visuoperceptual regions in dementia with Lewy bodies (DLB) patients. This study aimed to investigate the functional connectivity differences between a task condition and an inter-task resting state condition within a visuoperceptual paradigm, in DLB patients compared with Alzheimer disease (AD) patients and healthy elderly control subjects. METHODS: Twenty-six DLB, 29 AD, and 22 healthy subjects underwent a detailed clinical and neuropsychological examination along with a functional MRI during the different conditions of a visuoperceptual paradigm...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29723848/risk-factors-and-outcomes-of-delirium-in-older-patients-admitted-to-postacute-care-with-and-without-dementia
#13
Neus Gual, Alessandro Morandi, Laura Monica Pérez, Laura Brítez, Pamela Burbano, Flor Man, Marco Inzitari
BACKGROUND: Delirium research is poorly studied in postacute care, a growing setting due to aging populations, as well as in dementia, a critical risk factor for delirium and particularly prevalent in postacute care. We investigated risk factors for delirium and its outcomes in older adults with and without dementia admitted to a subacute care unit (SCU) after exacerbated chronic conditions. METHODS: This is a prospective cohort study including patients ≥65 years old admitted to an SCU for 12 months...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29694971/scores-obtained-from-a-simple-cognitive-test-of-visuospatial-episodic-memory-performed-decades-before-death-are-associated-with-the-ultimate-presence-of-alzheimer-disease-pathology
#14
Andrew C Robinson, Roseanne McNamee, Yvonne S Davidson, Michael A Horan, Julie S Snowden, Lynn McInnes, Neil Pendleton, David M A Mann
BACKGROUND: Community- or population-based longitudinal studies of cognitive ability with a brain donation end point offer an opportunity to examine relationships between pathology and cognitive state prior to death. Discriminating the earliest signs of dementing disorders, such as Alzheimer disease (AD), is necessary to undertake early interventions and treatments. METHODS: The neuropathological profile of brains donated from The University of Manchester Longitudinal Study of Cognition in Normal Healthy Old Age, including CERAD (Consortium to Establish a Registry for Alzheimer's Disease) and Braak stage, was assessed by immunohistochemistry...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29694964/associations-of-pulse-and-blood-pressure-with-hippocampal-volume-by-apoe-and-cognitive-phenotype-the-alzheimer-s-disease-neuroimaging-initiative-adni
#15
Julius S Ngwa, Thomas V Fungwe, Oyonumo Ntekim, Joanne S Allard, Sheree M Johnson, Chimene Castor, Lennox Graham, Sheeba Nadarajah, Richard F Gillum, Thomas O Obisesan
BACKGROUND: It is increasingly evident that high blood pressure can promote reduction in global and regional brain volumes. While these effects may preferentially affect the hippocampus, reports are inconsistent. METHODS: Using data from the Alzheimer's Disease Neuroimaging Initiative (ADNI), we examined the relationships of hippocampal volume to pulse pressure (PPR) and systolic (SBP) and diastolic (DBP) blood pressure according to apolipoprotein (APOE) ɛ4 positivity and cognitive status...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29684916/predictors-of-rapid-cognitive-decline-in-patients-with-mild-to-moderate-alzheimer-disease-a-prospective-cohort-study-with-12-month-follow-up-performed-in-memory-clinics
#16
Achille E Tchalla, Jean-Pierre Clément, Isabelle Saulnier, Betty Beaumatin, Florent Lachal, Caroline Gayot, Anaïs Bosetti, Iléana Desormais, Anaïck Perrochon, Pierre-Marie Preux, Philippe Couratier, Thierry Dantoine
BACKGROUND/AIMS: Alzheimer disease (AD) is particularly devastating, with no cure, no means of prevention, and no proven way to slow progression. AD is associated with the worsening of cognitive function attributable to a variety of factors of which little is known. Our main objective was to determine factors associated with rapid cognitive decline (RCD) in older AD patients. METHODS: We conducted a 12-month, prospective, multi-centre cohort study. Community-living individuals aged ≥65 years with mild-to-moderate AD were included...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29642074/incremental-validity-of-montreal-cognitive-assessment-index-scores-in-mild-cognitive-impairment-and-alzheimer-disease
#17
Felicia C Goldstein, Aaron Milloy, David W Loring
BACKGROUND/AIMS: The aim of this paper was to evaluate the incremental validity of the Montreal Cognitive Assessment (MoCA) index scores and the MoCA total score in differentiating individuals with normal cognition versus mild cognitive impairment (MCI) or Alzheimer disease (AD). METHODS: Effect sizes were calculated for Alzheimer's Disease Neuroimaging Initiative research participants with normal cognition (n = 295), MCI (n = 471), or AD (n = 150). RESULTS: Effect sizes for the total score were large (> 0...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29617684/characteristics-of-mild-cognitive-impairment-using-the-thai-version-of-the-consortium-to-establish-a-registry-for-alzheimer-s-disease-tests-a-multivariate-and-machine-learning-study
#18
Chavit Tunvirachaisakul, Thitiporn Supasitthumrong, Sookjareon Tangwongchai, Solaphat Hemrunroj, Phenphichcha Chuchuen, Itthipol Tawankanjanachot, Yuthachai Likitchareon, Kamman Phanthumchinda, Sira Sriswasdi, Michael Maes
BACKGROUND: The Consortium to Establish a Registry for Alzheimer's Disease (CERAD) developed a neuropsychological battery (CERAD-NP) to screen patients with Alzheimer's dementia. Mild cognitive impairment (MCI) has received attention as a pre-dementia stage. OBJECTIVES: To delineate the CERAD-NP features of MCI and their clinical utility to externally validate MCI diagnosis. METHODS: The study included 60 patients with MCI, diagnosed using the Clinical Dementia Rating, and 63 normal controls...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29566372/prevalence-recognition-and-treatment-of-dementia-in-assisted-living-facilities
#19
Stanislav Sutovsky, Maria Kralova, Pavol Siarnik, Peter Turcani
BACKGROUND/AIMS: Dementia and psychiatric disorders are common in assisted living facilities (ALFs) and have suboptimal rates of recognition and treatment. Therefore, we aimed to obtain a direct estimate of the prevalence of cognitive impairment and especially dementia among residents of ALFs in western Slovakia and their rates of primary recognition and adequate treatment. METHODS: We conducted two cross-sectional studies. Ten ALFs within the city of Bratislava were chosen for the study in 2004, and again in 2011...
2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29486479/use-of-vitamin-k-antagonists-and-brain-morphological-changes-in-older-adults-an-exposed-unexposed-voxel-based-morphometric-study
#20
Antoine Brangier, Sébastien Celle, Frédéric Roche, Olivier Beauchet, Guylaine Ferland, Cédric Annweiler
BACKGROUND: Vitamin K antagonists (VKAs) are commonly used for their role in haemostasis by interfering with the vitamin K cycle. Since vitamin K also participates in brain physiology, this voxel-based morphometric study aimed to determine whether the duration of exposure to VKAs correlated with focal brain volume reduction in older adults. METHODS: In this exposed/unexposed (1: 2) study nested within the GAIT (Gait and Alzheimer Interactions Tracking) cohort, 18 participants exposed to VKA (mean age 75 ± 5 years; 33...
2018: Dementia and Geriatric Cognitive Disorders
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