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https://www.readbyqxmd.com/read/27911306/cortical-thickness-and-microstructural-white-matter-changes-detect-amnestic-mild-cognitive-impairment
#1
Zan Wang, Zhengjia Dai, Hao Shu, Duan Liu, Qihao Guo, Yong He, Zhijun Zhang
Both the apolipoprotein E (APOE) ɛ4 allele and amnestic mild cognitive impairment (aMCI) are considered to be risk factors for Alzheimer's disease (AD). The primary aim of this study was to determine whether the aMCI-related abnormality in gray matter (GM) cortical thickness and white matter (WM) tracts integrity would be modified by the APOE genotype. A total of 146 older adults, including 64 aMCI patients (28 ɛ4 carriers and 36 non-carriers) and 82 healthy controls (39 ɛ4 carriers and 43 non-carriers), underwent a standardized clinical interview, neuropsychological battery assessment, and multi-modal brain magnetic resonance imaging scans...
November 29, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911299/chronotropic-response-and-cognitive-function-in-a-cohort-at-risk-for%C3%A2-alzheimer-s-disease
#2
Lena L Law, Stephanie A Schultz, Elizabeth A Boots, Jean A Einerson, Ryan J Dougherty, Jennifer M Oh, Claudia E Korcarz, Dorothy F Edwards, Rebecca L Koscik, N Maritza Dowling, Catherine L Gallagher, Barbara B Bendlin, Cynthia M Carlsson, Sanjay Asthana, Bruce P Hermann, Mark A Sager, Sterling C Johnson, Dane B Cook, James H Stein, Ozioma C Okonkwo
The objective of this study was to examine the association of chronotropic response (CR) and heart rate (HR) recovery- two indices of cardiovascular function within the context of a graded exercise test- with cognitive performance in a cognitively healthy, late-middle-aged cohort at risk for Alzheimer's disease (AD). Ninety participants (age = 63.52±5.86 years; 65.6% female) from the Wisconsin Registry for Alzheimer's Prevention participated in this study. They underwent graded exercise testing and a comprehensive neuropsychological assessment that assessed the following four cognitive domains: Immediate Memory, Verbal & Learning Memory, Working Memory, and Speed & Flexibility...
December 1, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911004/a-comparison-of-the-neuropsychological-profiles-of-people-living-in-squalor-without-hoarding-to-those-living-in-squalor-associated-with-hoarding
#3
Sook Meng Lee, Matthew Lewis, Deborah Leighton, Ben Harris, Brian Long, Stephen Macfarlane
OBJECTIVE: Squalor affects 1 in 1000 older people and is regarded as a secondary condition to other primary disorders such as dementia, intellectual impairment and alcohol abuse. Squalor frequently is associated with hoarding behaviour. We compared the neuropsychological profile of people living in squalor associated with hoarding to those presenting with squalor only. METHODS: This study is a retrospective case series of hospital inpatient and community healthcare services of 69 people living in squalor (49 from aged care, 16 from aged psychiatry, 3 from acute medical and 1 from a memory clinic)...
December 2, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27910252/memory-performance-on-the-story-recall-test-and-prediction-of-cognitive-dysfunction-progression-in-mild-cognitive-impairment-and-alzheimer-s-dementia
#4
Jong-Hwan Park, Hyuntae Park, Sang Wuk Sohn, Sungjae Kim, Kyung Won Park
AIM: To determine the factors that influence diagnosis and differentiation of patients with mild cognitive impairment (MCI) and Alzheimer's dementia (AD) by comparing memory test results at baseline with those at 1-2-year follow up. METHODS: We consecutively recruited 23 healthy participants, 44 MCI patients and 27 patients with very mild AD according to the National Institute of Neurological and Communicative Diseases and Stroke/Alzheimer's Disease and Related Disorder Association criteria for probable Alzheimer's disease and Petersen's clinical diagnostic criteria...
December 1, 2016: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/27905359/-clinical-and-neuropsychological-features-of-alzheimer-s-disease-in-the-combination-with-cerebrovascular-disease
#5
N A Trusova, O S Levin, A V Arablinsky
AIM: To study clinical/neuropsychological and neuroimaging characteristics of Alzheimer's disease in the combination with cerebrovascular disease (CVD). MATERIAL AND METHODS: Ninety patients with dementia, including 35 patients with AD, 35 patients with mixed dementia (MD) and 20 patients with vascular dementia, were examined. The character of dementia was established according to NINCDS-ADRDA and NINDS-AIREN criteria. The neuropsychological battery included Addenbrooke's Cognitive Examination (ACE-R), Montreal Cognitive Assessment scale (MoCA), fluency test and the visual memory test (SCT)...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27905355/-cerebral-microbleeds-in-cerebrovascular-and-neurodegenerative-diseases-with-cognitive-impairment
#6
T A Polyakova, O S Levin
AIM: To study a role of cerebral microbleeds (CMB) in the diagnosis of main cerebrovascular and neurodegenerative diseases with cognitive impairment. MATERIAL AND METHODS: CMB were studied in 120 patients with Alzheimer's disease (AD), dementia with Lewy bodies (DLB) and vascular dementia using 1.5T MRI in T2 * gradient echo. An impact of CMB on cognitive functions and the relationship with signs of vascular and neurodegenerative lesions of the brain were studied as well...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27903335/patterns-of-cortical-and-subcortical-amyloid-burden-across-stages-of-preclinical-alzheimer-s-disease
#7
Emily C Edmonds, Katherine J Bangen, Lisa Delano-Wood, Daniel A Nation, Ansgar J Furst, David P Salmon, Mark W Bondi
OBJECTIVES: We examined florbetapir positron emission tomography (PET) amyloid scans across stages of preclinical Alzheimer's disease (AD) in cortical, allocortical, and subcortical regions. Stages were characterized using empirically defined methods. METHODS: A total of 312 cognitively normal Alzheimer's Disease Neuroimaging Initiative participants completed a neuropsychological assessment and florbetapir PET scan. Participants were classified into stages of preclinical AD using (1) a novel approach based on the number of abnormal biomarkers/cognitive markers each individual possessed, and (2) National Institute on Aging and the Alzheimer's Association (NIA-AA) criteria...
November 2016: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/27886629/transient-epileptic-amnesia-over-twenty-years-long-term-follow-up-of-a-case-series-with-three-detailed-reports
#8
Sharon A Savage, Christopher R Butler, John R Hodges, Adam Z Zeman
PURPOSE: Transient Epileptic Amnesia (TEA) is a form of adult onset temporal lobe epilepsy characterised by ictal amnesia. The amnesic seizures are often accompanied by interical memory disturbance, involving autobiographical amnesia and accelerated long-term forgetting. Short-term follow-up studies suggest a relatively stable cognitive profile once treated, but recent case reports raise concerns regarding the risk of developing Alzheimer's disease (AD). The current study reports clinical and cognitive outcome in TEA patients over a 20-year period...
November 14, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27886012/histogram-based-feature-extraction-from-individual-gray-matter-similarity-matrix-for-alzheimer-s-disease-classification
#9
Iman Beheshti, Norihide Maikusa, Hiroshi Matsuda, Hasan Demirel, Gholamreza Anbarjafari
Automatic computer-aided diagnosis (CAD) systems have been widely used in classification of patients who suffer from Alzheimer's disease (AD). This paper presents an automatic CAD system based on histogram feature extraction from single-subject gray matter similarity-matrix for classifying the AD patients from healthy controls (HC) using structural magnetic resonance imaging (MRI) data. The proposed CAD system is composed of five stages. In the first stage, segmentation is employed to perform pre-processing on the MRI images, and segment into gray matter, white matter, and cerebrospinal fluid using the voxel-based morphometric toolbox procedure...
November 19, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27884130/a-profile-of-the-clinical-course-of-cognition-and-comorbidity-in-mild-cognitive-impairment-and-dementia-study-the-4c-study-two-complementary-longitudinal-clinical-cohorts-in-the-netherlands
#10
Weiqi Liao, Renske E G Hamel, Marcel G M Olde Rikkert, Saskia M Oosterveld, Pauline Aalten, Frans R J Verhey, Philip Scheltens, Nicole Sistermans, Yolande A L Pijnenburg, Wiesje M van der Flier, Inez H G B Ramakers, René J F Melis
BACKGROUND: Heterogeneous disease trajectories of mild cognitive impairment (MCI) and dementia are frequently encountered in clinical practice, but there is still insufficient knowledge to understand the reasons and mechanisms causing this heterogeneity. In addition to correlates of the disorder, patient characteristics such as their health status, social environment, comorbidities and frailty may contribute to variability in trajectories over time. The current paper outlines the study design and the study population of and provides an overview of the data collected in the Clinical Course of Cognition and Comorbidity in Mild Cognitive Impairment (4C-MCI cohort, n = 315) and Dementia (4C-Dementia cohort, n = 331) Study...
November 25, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27878761/genome-wide-association-analysis-of-the-sense-of-smell-in-u-s-older-adults-identification-of-novel-risk-loci-in-african-americans-and-european-americans
#11
Jing Dong, Annah Wyss, Jingyun Yang, T Ryan Price, Aude Nicolas, Michael Nalls, Greg Tranah, Nora Franceschini, Zongli Xu, Claudia Schulte, Alvaro Alonso, Steven R Cummings, Myriam Fornage, Dmitri Zaykin, Leping Li, Xuemei Huang, Stephen Kritchevsky, Yongmei Liu, Thomas Gasser, Robert S Wilson, Philip L De Jager, Andrew B Singleton, Jayant M Pinto, Tamara Harris, Thomas H Mosley, David A Bennett, Stephanie London, Lei Yu, Honglei Chen
The human sense of smell decreases with age, and a poor sense of smell are among the most important prodromal symptoms of several neurodegenerative diseases. Recent evidence further suggests a racial difference in the sense of smell among U.S. older adults. However, no genome-wide association study (GWAS) on the sense of smell has been conducted in African-Americans (AAs). We performed the first genome-wide meta-analysis of the sense of smell among 1979 AAs and 6582 European-Americans (EAs) from three U.S. aging cohorts...
November 23, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27878426/the-differential-effects-of-alzheimer-s-disease-and-lewy-body-pathology-on-cognitive-performance-a-meta-analysis
#12
REVIEW
Ashita S Gurnani, Brandon E Gavett
Differential diagnosis of Alzheimer's disease (AD) from normal aging and other dementia etiologies is imperative for disease specific treatment options and long-term care planning. Neuropathological confirmation is the gold standard for neurodegenerative disease diagnosis, yet most published studies examining the use of neuropsychological tests in the differential diagnosis of dementia rely upon clinical diagnostic outcomes. The present study undertook a meta-analytic review of the literature to identify cognitive tests and domains that allow for the differentiation of individuals with AD pathology from individuals with dementia with Lewy Bodies (DLB) pathology and pathology-free individuals...
November 22, 2016: Neuropsychology Review
https://www.readbyqxmd.com/read/27875364/attenuation-of-choroidal-thickness-in-patients-with-alzheimer-disease-evidence-from-an-italian-prospective-study
#13
Alessandro Trebbastoni, Michela Marcelli, Fabiana Mallone, Fabrizia D'Antonio, Letizia Imbriano, Alessandra Campanelli, Carlo de Lena, Magda Gharbiya
INTRODUCTION: To compare the 12-month choroidal thickness (CT) change between Alzheimer disease (AD) patients and normal subjects. METHODS: In this prospective, observational study, 39 patients with a diagnosis of mild to moderate AD and 39 age-matched control subjects were included. All the subjects underwent neuropsychological (Mini Mental State Examination, Alzheimer disease Assessment Scale-Cognitive Subscale, and the Clinical Dementia Rating Scale) and ophthalmological evaluation, including spectral domain optical coherence tomography, at baseline and after 12 months...
November 21, 2016: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/27861589/role-of-plasma-clusterin-in-alzheimer-s-disease-a-pilot-study-in-a-tertiary-hospital-in-northern-india
#14
Venugopalan Y Vishnu, Manish Modi, Sandeep Sharma, Manju Mohanty, Manoj Kumar Goyal, Vivek Lal, Niranjan Khandelwal, Bhagwant Rai Mittal, Sudesh Prabhakar
OBJECTIVE: To evaluate the role of plasma clusterin in Alzheimer's disease (AD). BACKGROUND: Plasma clusterin is a promising biomarker as various studies have shown it to be associated with AD. But other studies have shown that plasma clusterin levels were not related to Alzheimer's disease or presymptomatic AD. Hence the diagnostic value of plasma clusterin is still not conclusive. METHODS: Neuropsychological assessment, MRI brain, FDG-PET brain and CSF biomarkers of AD were used for establishing the diagnosis of MCI, AD or Vascular dementia...
2016: PloS One
https://www.readbyqxmd.com/read/27859650/profile-of-cognitive-impairment-and-underlying-pathology-in-multiple-system-atrophy
#15
Shunsuke Koga, Adam Parks, Ryan J Uitti, Jay A van Gerpen, William P Cheshire, Zbigniew K Wszolek, Dennis W Dickson
BACKGROUND: The objectives of this study were to elucidate any potential association between α-synuclein pathology and cognitive impairment and to determine the profile of cognitive impairment in multiple system atrophy (MSA) patients. To do this, we analyzed the clinical and pathologic features in autopsy-confirmed MSA patients. METHODS: We retrospectively reviewed medical records, including neuropsychological test data, in 102 patients with autopsy-confirmed MSA in the Mayo Clinic brain bank...
November 15, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27856335/examining-the-impact-of-grape-consumption-on-brain-metabolism-and-cognitive-function-in-patients-with-mild-decline-in-cognition-adouble-blinded-placebo-controlled-pilot-study
#16
Jooyeon Lee, Nare Torosyan, Daniel H Silverman
BACKGROUND: Natural compounds in grapes such as resveratrol are known for their antioxidant and anti-inflammatory properties. Some studies have shown a potential role for grapes or wine in slowing cognitive decline and other effects of aging. However, well-controlled experimental data obtained in human subjects are still in need of further development. Here we aimed to systemically assess effects of grapes on regional cerebral metabolism. METHODS: Ten subjects with mild decline in cognition (mean, 72...
November 14, 2016: Experimental Gerontology
https://www.readbyqxmd.com/read/27844089/-biomarkers-for-dementia-and-other-neurodegenerative-diseases-current-developments
#17
J Wiltfang, P Lewczuk, M Otto
Cerebrospinal fluid-based neurochemical dementia diagnostics (CSF-NDD) support the early and differential diagnosis of dementia, most importantly the diagnosis of early or preclinical Alzheimer's dementia (AD). Meanwhile CSF-NDD are now recommended for improved exclusion and positive diagnostics of AD by the German national neuropsychiatry S3 dementia guidelines ( www.DGPPN.de ). Meta-analyses of independent international multicenter studies have shown that a combined CSF analysis of amyloid-beta 1-42 (Aβ 1-42, decreased), total tau proteins (increased) and phospho-tau proteins (increased) offers a sensitivity and specificity of 80-90 % for the early and differential diagnosis of AD (AD versus all other)...
November 14, 2016: Der Nervenarzt
https://www.readbyqxmd.com/read/27843319/effects-of-multiple-training-modalities-in-patients-with-alzheimer-s-disease-a-pilot-study
#18
Shu-Yu Tai, Chia-Ling Hsu, Shu-Wan Huang, Tzu-Chiao Ma, Wen-Chien Hsieh, Yuan-Han Yang
OBJECTIVE: This pilot study investigated the effects of multiple training modalities on cognition, neuropsychiatric symptoms, caregivers' burden, and quality of life in patients with Alzheimer's disease (AD). PATIENTS AND METHODS: This intervention study was conducted in 24 patients with AD aged ≥65 years with a Clinical Dementia Rating (CDR) score of 0.5-1. The patients were assigned to receive multiple training modalities (1 hour for each training: Tai Chi, calligraphy, and drawing) over a 6-week period in either the experimental group (n=14) or the comparison group (n=10)...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27828583/stress-and-cognitive-reserve-as-independent-factors-of-neuropsychological-performance-in-healthy-elderly
#19
João Carlos Centurion Cabral, Gessyka Wanglon Veleda, Martina Mazzoleni, Elton Pinto Colares, Lucas Neiva-Silva, Vera Torres das Neves
Exposure to high levels of cortisol and self-reported stress, as well as cognitive reserve, have been linked to Alzheimer's disease pathology. However, there are no studies on the interaction of these variables. The present study aims to assess the associations of measures of cortisol, self-reported stress, and cognitive reserve with neuropsychological performance in healthy elderly people; besides, to test the interactions between these variables. Cross-sectional analyzes were conducted using data on stress, cognitive reserve and clinical conditions in 145 healthy elderly adults...
November 2016: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/27823981/repetitive-transcranial-magnetic-stimulation-improves-cognitive-function-of-alzheimer-s-disease-patients
#20
Junwu Zhao, Zhenguang Li, Yannan Cong, Jinbiao Zhang, Ming Tan, Haixia Zhang, Na Geng, Mengfan Li, Wenwen Yu, Peiyan Shan
Repetitive transcranial magnetic stimulation (rTMS) acts as a kind of widely-applied and non-invasive method in the intervention of some neurological disorders. This prospective, randomized, double-blind, placebo-controlled trial investigates the effect of rTMS on 30 cases of Alzheimer's disease (AD) participants, who were classified into mild and moderate groups. Neuropsychological tests were carried out using the AD Assessment Scale-cognitive subscale (ADAS-cog), Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), and World Health Organization University of California-Los Angeles, Auditory Verbal Learning Test (WHO-UCLA AVLT) before, immediately after, and 6 weeks after the intervention...
November 3, 2016: Oncotarget
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