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Dementia and Geriatric Cognitive Disorders

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https://www.readbyqxmd.com/read/29421784/complement-activation-in-capillary-cerebral-amyloid-angiopathy
#1
Ko Matsuo, Akihiro Shindo, Atsushi Niwa, Ken-Ichi Tabei, Hiroyasu Akatsu, Yoshio Hashizume, Haruhiko Akiyama, Takashi Ayaki, Takakuni Maki, Nobukatsu Sawamoto, Ryosuke Takahashi, Shinji Oikawa, Hidekazu Tomimoto
BACKGROUND: Cerebral amyloid angiopathy (CAA) is classified as type 1 with capillary amyloid β (Aβ) or type 2 without capillary Aβ. While it is known that CAA activates complement, an inflammatory mediator, there is no information on the relationship between capillary Aβ and complement activation. METHODS: We evaluated 34 autopsy brains, including 22 with CAA and 12 with other neurodegenerative diseases. We assessed the vascular density of CAA by analyzing the expression of complement (C1q, C3d, C6, C5b-9), macrophage scavenger receptor (MSR), and apolipoprotein E (ApoE)...
February 8, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29414814/apoe-%C3%AE%C2%B54-genotype-and-cognitive-reserve-effects-on-the-cognitive-functioning-of-healthy-elders
#2
María Eugenia López, Agustín Turrero, María Luisa Delgado, Inmaculada Concepción Rodríguez-Rojo, Juan Arrazola, Ana Barabash, Fernando Maestú, Alberto Fernández
AIM: To test the association between cognitive performance and APOE genotype, and to assess potential modifications of this association by sociodemographic and neuroanatomical factors in a sample of 74 healthy elders. METHODS: Firstly, we explored the isolated role of the APOE ɛ4 genotype (i.e., APOE4) in different neuropsychological tests, and then the effects of its interaction with sociodemographic (i.e., age, gender, and educational level) and neuroanatomical (i...
February 7, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29393151/validation-of-the-cuban-version-of-addenbrooke-s-cognitive-examination-revised-for-screening-mild-cognitive-impairment
#3
Yunier Broche-Pérez, Héctor Alejandro López-Pujol
BACKGROUND/AIMS: The diagnostic accuracy of the Cuban version of the revised Addenbrooke's Cognitive Examination (ACE-R) in identifying mild cognitive impairment (MCI) in comparison with the Mini-Mental State Examination (MMSE) was assessed. METHODS: The Cuban ACE-R was administered to a group of 129 elderly subjects (92 cognitively healthy and 37 subjects with MCI). The t tests for independent samples were used to compare scores of different psychometric scales between groups, and effect sizes (Cohen's d) were calculated...
January 30, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29393203/importance-of-proactive-treatment-of-depression-in-lewy-body-dementias-the-impact-on-hippocampal-neurogenesis-and-cognition-in-a-post-mortem-study
#4
Ariana Gatt, Antigoni Ekonomou, Alyma Somani, Sandrine Thuret, David Howlett, Anne Corbett, Mary Johnson, Elaine Perry, Johannes Attems, Paul Francis, Dag Aarsland, Clive Ballard
OBJECTIVE: To examine the impact of selective serotonin reuptake inhibitors (SSRIs) and depression on neurogenesis and cognition in dementia with Lewy bodies (DLB) and Parkinson disease dementia (PDD). METHODS: Late-stage progenitor cells were quantified in the subgranular zone (SGZ) of the hippocampal dentate gyrus of DLB/PDD patients (n = 41) and controls without dementia (n = 15) and compared between treatment groups (unmedicated, SSRIs, acetyl cholinesterase inhibitors [AChEIs], combined SSRIs and AChEIs)...
January 27, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29393258/higher-serum-endocan-level-is-associated-with-alzheimer-disease
#5
Hacer Dogan Varan, Gurkan Guner, Muhammet Cemal Kizilarslanoglu, Fatih Sumer, Rana Tuna Dogrul, Aykut Sagir, Cemile Ozsurekci, Hatice Caliskan, Cafer Balci, Gozde Sengul Aycicek, Filiz Akbiyik, Meltem Halil, Mustafa Cankurtaran, Burcu Balam Yavuz
BACKGROUND: The novel molecule endocan, which is released by endothelium and is regulated by proangiogenic and proinflammatory cytokines, may have a role in the pathophysiology of Alzheimer disease (AD). The aim of this study was to evaluate the relationship between serum endocan levels and AD. METHODS: A total of 134 patients (47 AD, 42 amnestic mild cognitive impairment [aMCI], and 45 control patients) 65 years of age and older were recruited in this study. Cognitive status of the patients was evaluated by performing the Montreal Cognitive Assessment (MOCA) and the Mini-Mental State Examination (MMSE)...
January 26, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29393172/saccular-impairment-in-alzheimer-s-disease-is-associated-with-driving-difficulty
#6
Eric X Wei, Esther S Oh, Aisha Harun, Matthew Ehrenburg, Yuri Agrawal
BACKGROUND/AIMS: Patients with Alzheimer's disease (AD) experience increased rates of vestibular loss. Recent studies suggest that saccular impairment in mild cognitive impairment (MCI) and AD patients is associated with impaired spatial cognitive function. However, the impact of saccular impairment on everyday behaviors that rely on spatial cognitive function is unknown. METHODS: We recruited 60 patients (21 MCI and 39 AD) from an interdisciplinary Memory Clinic...
January 26, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29393166/a-methodological-perspective-on-the-longitudinal-cognitive-change-after-stroke
#7
Jae-Sung Lim, Maengseok Noh, Beom Joon Kim, Moon-Ku Han, SangYun Kim, Myung Suk Jang, Youngjo Lee, Il Do Ha, Kyung-Ho Yu, Byung-Chul Lee, Yeonwook Kang, Juneyoung Lee, Hee-Joon Bae
BACKGROUND/AIMS: Most studies of poststroke cognitive impairment (PSCI) have analyzed cognitive levels at specific time points rather than their changes over time. Furthermore, they seldom consider correlations between cognitive domains. We aimed to investigate the effects of these methodological considerations on determining significant PSCI predictors in a longitudinal stroke cohort. METHODS: In patients who underwent neuropsychological tests at least twice after stroke, we adopted a multilevel hierarchical mixed-effects model with domain-specific cognitive changes and a multivariate model for multiple outcomes to reflect their correlations...
January 26, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29393207/psychometric-evaluation-of-the-electronic-pain-assessment-tool-an-innovative-instrument-for-individuals-with-moderate-to-severe-dementia
#8
Mustafa Atee, Kreshnik Hoti, Jeffery D Hughes
BACKGROUND/AIMS: Pain is common in aged care residents with dementia; yet it often goes undetected. A novel tool, the electronic Pain Assessment Tool (ePAT), was developed to address this challenging problem. We investigated the psychometric properties of the ePAT. METHODS: In a 10-week prospective observational study, the ePAT was evaluated by comparison against the Abbey Pain Scale (APS). Pain assessments were blindly co-performed by the ePAT rater against the nursing staff of two residential aged care facilities...
January 23, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29353280/microstructure-of-strategic-white-matter-tracts-and-cognition-in-memory-clinic-patients-with-vascular-brain-injury
#9
J Matthijs Biesbroek, Alexander Leemans, Hanna den Bakker, Marco Duering, Benno Gesierich, Huiberdina L Koek, Esther van den Berg, Albert Postma, Geert Jan Biessels
BACKGROUND: White matter injury is an important factor for cognitive impairment in memory clinic patients. We determined the added value of diffusion tensor imaging (DTI) of strategic white matter tracts in explaining variance in cognition in memory clinic patients with vascular brain injury. METHODS: We included 159 patients. Conventional MRI markers (white matter hyperintensity volume, lacunes, nonlacunar infarcts, brain atrophy, and microbleeds), and fractional anisotropy and mean diffusivity (MD) of the whole brain white matter and of 18 white matter tracts were related to cognition using linear regression and Bayesian network analysis...
January 19, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29216633/greater-experience-of-negative-non-target-emotions-by-patients-with-neurodegenerative-diseases-is-related-to-lower-emotional-well-being-in-caregivers
#10
Kuan-Hua Chen, Jenna L Wells, Marcela C Otero, Sandy J Lwi, Claudia M Haase, Robert W Levenson
BACKGROUND: Behavioral symptoms in patients with neurodegenerative diseases can be particularly challenging for caregivers. Previously, we reported that patients with frontotemporal dementia (FTD) and Alzheimer's disease (AD) experienced emotions that were atypical or incongruent with a given situation (i.e., non-target emotions). AIM: We tested the hypothesis that greater experience of non-target emotions by patients is associated with lower caregiver emotional well-being...
December 8, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28982094/combined-impact-of-telomere-length-and-mitochondrial-dna-copy-number-on-cognitive-function-in-community-dwelling-very-old-adults
#11
Jee-Yon Lee, Jung-Ha Kim, Duk-Chul Lee
BACKGROUND: This study was conducted to investigate the combined impact of telomere length and mitochondrial DNA (mtDNA) copy number on cognitive function in community-dwelling very old adults. METHODS: In total, 186 subjects over 75 years participated in this study. Cognitive function was assessed using the Korean Mini-Mental State Examination, and leukocyte telomere length and mtDNA copy number were measured using real-time polymerase chain reaction methods. RESULTS: Both the fourth quartile of telomere length and mtDNA copy number were associated with cognitive dysfunction with an adjusted odds ratio of 0...
October 6, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28934750/frontotemporal-dementia-caused-by-the-p301l-mutation-in-the-mapt-gene-clinicopathological-features-of-13-cases-from-the-same-geographical-origin-in-barcelona-spain
#12
Sergi Borrego-Écija, Joana Morgado, Leire Palencia-Madrid, Oriol Grau-Rivera, Ramón Reñé, Isabel Hernández, Consuelo Almenar, Mircea Balasa, Anna Antonell, José Luis Molinuevo, Albert Lladó, Marian Martínez de Pancorbo, Ellen Gelpi, Raquel Sánchez-Valle
BACKGROUND/AIMS: We identified and studied 13 patients carrying the P301L mutation in the MAPT gene from the same area (Baix Llobregat County) in Barcelona, Spain. METHODS: The demographic and clinical features were reviewed retrospectively. Detailed neuropathological characterization was obtained in 9 subjects. To investigate the origin of the P301L mutation in these families, 20 single nucleotide polymorphisms (SNPs) in the MAPT gene were analyzed. RESULTS: The mean age at disease onset was 51 years and the mean disease duration was 7 years...
September 22, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28930751/dementia-predicting-cognitive-risk-score-and-its-correlation-with-cortical-thickness-in-parkinson-disease
#13
Byoung Seok Ye, Seun Jeon, Jee Hyun Ham, Jae Jung Lee, Jong Min Lee, Hye Sun Lee, Phil Hyu Lee, Young H Sohn
BACKGROUND: We developed a risk score system to predict risks of developing dementia in individual Parkinson disease (PD) patients using baseline neuropsychological tests. METHODS: A total of 216 nondemented PD patients underwent a baseline neuropsychological evaluation and were followed up for a mean of 2.7 (±1.1) years. Univariate Cox regression models controlled for age, gender, and education selected neuropsychological tests individually predicting dementia risk...
September 21, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28881343/the-edinburgh-feeding-evaluation-in-dementia-scale-a-longitudinal-study-in-nursing-home-residents
#14
Roger Watson, Annamaria Bagnasco, Gianluca Catania, Giuseppe Aleo, Milko Zanini, Loredana Sasso
AIMS/BACKGROUND: The Edinburgh Feeding Evaluation in Dementia (EdFED) scale has been shown to have good psychometric properties using a range of methods including Mokken scaling. We aimed to study the Italian version of the EdFED using Mokken scaling. METHODS: Data were gathered at 7 time points from 401 nursing home residents affected by dementia in the course of a 6-month intervention study using analysis of variance, Mokken scaling, and person-item fit statistics...
September 8, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28869959/screening-of-cognitive-impairment-in-the-dialysis-population-a-scoping-review
#15
Aye San, Balaji Hiremagalur, Wendy Muircroft, Laurie Grealish
BACKGROUND: Cognitive impairment in end-stage kidney disease patients on dialysis is increasingly common. This study aimed to review the practice of screening and to evaluate the evidence on cognitive impairment prevalence in this population. METHODS: This scoping review of studies summarises the evidence on cognitive impairment in dialysis populations. The search included the Medline, CINAHL, Embase, PsycINFO, PubMed, and Cochrane Library databases for English-language articles published between 2000 and 2015...
September 5, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28869957/diagnostic-value-of-time-constrained-naming-test-in-mild-cognitive-impairment
#16
Yun Kyung Hwang, Eosu Kim, Yong Bum Kim, Yong Wook Kim, Chung Mo Nam, Seung-Hun Cho, HyangHee Kim
BACKGROUND: Naming difficulties have recently garnered more interest in elderly individuals with mild cognitive impairment (MCI). We anticipate that naming tests with the consideration of response time can provide more informative and distinct neuropsychological profiles of individuals with MCI. METHODS: Naming tests were administered to 76 elderly individuals with MCI and 149 healthy elderly (HE). We analyzed the impact of MCI on naming performance and occurrence of "delayed" response...
September 5, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28869952/risk-factors-for-delirium-in-older-medical-inpatients-in-tanzania
#17
Emma Grace Lewis, Jessica Banks, Stella-Maria Paddick, Ashanti Duinmaijer, Laura Tucker, Aloyce Kisoli, Jane Cletus, Carolyn Lissu, Kajiru Kilonzo, Glynis Cosker, Elizabeta Blagoja Mukaetova-Ladinska, Catherine Dotchin, William Gray, Richard Walker, Sarah Urasa
BACKGROUND: The risk factors for prevalent delirium in older hospitalised adults in Sub-Saharan Africa (SSA) remain poorly characterised. METHODS: A total of 510 consecutive admissions of adults aged ≥60 years to acute medical wards of Kilimanjaro Christian Medical Centre in northern Tanzania were recruited. Patients were assessed within 24 h of admission with a risk factor questionnaire, physiological observations, neurocognitive assessment, and informant interview...
September 5, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28848214/cortical-functional-connections-and-fluid-intelligence-in-adolescent-apoe-%C3%AE%C2%B54-carriers
#18
Minjung Woo, Yujin Kim
AIMS: This study examined differences in corticocortical communication between adolescent ε4 carriers (ε4+) and noncarriers (ε4-) during a fluid intelligence task (Comprehensive Test of Nonverbal Intelligence [CTONI]). METHODS: Sixteen ε4+ and 20 ε4- individuals aged 13-15 years performed the CTONI while real-time EEG signals were acquired. Inter- and intrahemispheric coherences were analyzed. RESULTS: The ε4+ subjects exhibited lower inter- and intrahemispheric coherences than the ε4- individuals...
August 24, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28848086/cerebrospinal-fluid-tar-dna-binding-protein-43-combined-with-tau-proteins-as-a-candidate-biomarker-for-amyotrophic-lateral-sclerosis-and-frontotemporal-dementia-spectrum-disorders
#19
Mara Bourbouli, Michael Rentzos, Anastasia Bougea, Vasiliki Zouvelou, Vasilios C Constantinides, Ioannis Zaganas, Ioannis Evdokimidis, Elisabeth Kapaki, George P Paraskevas
BACKGROUND: Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are nowadays recognized as spectrum disorders with a molecular link, the TAR DNA-binding protein 43 (TDP-43), rendering it a surrogate biomarker for these disorders. METHODS: We measured cerebrospinal fluid (CSF) levels of TDP-43, beta-amyloid peptide with 42 amino acids (Aβ42), total tau protein (τT), and tau protein phosphorylated at threonine 181 (τP-181) in 32 patients with ALS, 51 patients with FTD, and 17 healthy controls...
August 23, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28787730/characterisation-of-positive-behaviours-in-primary-progressive-aphasias
#20
Akira Midorikawa, Fiona Kumfor, Cristian E Leyton, David Foxe, Ramon Landin-Romero, John R Hodges, Olivier Piguet
BACKGROUND/AIMS: Although some patients with primary progressive aphasia (PPA) exhibit novel or improved skills after the onset of dementia, these changes have yet to be quantified. Therefore, this study systematically explored and identified the emergence of positive behaviours after dementia onset. METHODS: This study included 48 carers of patients with PPA: 12 nonfluent/agrammatic PPA (nfvPPA), 22 semantic variant PPA (svPPA), and 14 logopenic variant PPA (lvPPA)...
August 5, 2017: Dementia and Geriatric Cognitive Disorders
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