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https://www.readbyqxmd.com/read/27911311/risk-factors-and-pathological-substrates-associated-with-agitation-aggression-in-alzheimer-s-disease-a-preliminary-study-using-nacc-data
#1
Simrin Sennik, Tom A Schweizer, Corinne E Fischer, David G Munoz
BACKGROUND: Neuropsychiatric symptoms are common manifestations of Alzheimer's disease (AD). A number of studies have targeted psychosis, i.e., hallucinations and delusions in AD, but few have assessed agitation/aggression in AD. OBJECTIVE: To investigate the risk factors and pathological substrates associated with presence [A(+)] and absence [A(-)] of agitation/aggression (A) in autopsy-confirmed AD. METHODS: Data was collected from the UDS data as of 2015 on the NACC database...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27905359/-clinical-and-neuropsychological-features-of-alzheimer-s-disease-in-the-combination-with-cerebrovascular-disease
#2
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/27787891/a-brief-dietary-assessment-predicts-executive-dysfunction-in-an-elderly-cohort-results-from-the-einstein-aging-study
#3
Erin E Sundermann, Mindy J Katz, Richard B Lipton, Alice H Lichtenstein, Carol A Derby
OBJECTIVES: To examine the association between diet and executive function, episodic memory and global verbal cognition in the Einstein Aging Study (EAS) cohort and determine whether race modifies this relationship. DESIGN: Cross-sectional. SETTING: Community. PARTICIPANTS: EAS participants without dementia who completed the Rapid Eating and Activity Assessment for Patients (REAP) (N = 492). MEASUREMENTS: The previously validated REAP is based on the 2000 U...
November 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27723710/-clinical-and-neuropsychological-features-of-alzheimer-s-disease-in-the-combination-with-cerebrovascular-disease
#4
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/27604604/the-gut-brain-axis-including-the-microbiome-leaky-gut-and-bacterial-translocation-mechanisms-and-pathophysiological-role-in-alzheimer-s-disease
#5
Cristiano A Köhler, Michael Maes, Anastasiya Slyepchenko, Michael Berk, Marco Solmi, Krista L Lanctôt, André F Carvalho
Alzheimer's disease (AD), the most common form of dementia, is a progressive disorder manifested by gradual memory loss and subsequent impairment in mental and behavioral functions. Though the primary risk factor for AD is advancing age, other factors such as diabetes mellitus, hyperlipidemia, obesity, vascular factors and depression play a role in its pathogenesis. The human gastrointestinal tract has a diverse commensal microbial population, which has bidirectional interactions with the human host that are symbiotic in health, and in addition to nutrition, digestion, plays major roles in inflammation and immunity...
September 6, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27599208/systematic-evaluation-of-the-associations-between-environmental-risk-factors-and-dementia-an-umbrella-review-of-systematic-reviews-and-meta-analyses
#6
Vanesa Bellou, Lazaros Belbasis, Ioanna Tzoulaki, Lefkos T Middleton, John P A Ioannidis, Evangelos Evangelou
INTRODUCTION: Dementia is a heterogeneous neurodegenerative disease, whose etiology results from a complex interplay between environmental and genetic factors. METHODS: We searched PubMed to identify meta-analyses of observational studies that examined associations between nongenetic factors and dementia. We estimated the summary effect size using random-effects and fixed-effects model, the 95% CI, and the 95% prediction interval. We assessed the between-study heterogeneity (I-square), evidence of small-study effects, and excess significance...
September 4, 2016: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/27536962/differences-of-behavioral-and-psychological-symptoms-of-dementia-in-disease-severity-in-four-major-dementias
#7
Hiroaki Kazui, Kenji Yoshiyama, Hideki Kanemoto, Yukiko Suzuki, Shunsuke Sato, Mamoru Hashimoto, Manabu Ikeda, Hibiki Tanaka, Yutaka Hatada, Masateru Matsushita, Yoshiyuki Nishio, Etsuro Mori, Satoshi Tanimukai, Kenjiro Komori, Taku Yoshida, Hideaki Shimizu, Teruhisa Matsumoto, Takaaki Mori, Tetsuo Kashibayashi, Kazumasa Yokoyama, Tatsuo Shimomura, Yasunobu Kabeshita, Hiroyoshi Adachi, Toshihisa Tanaka
BACKGROUND/AIMS: Behavioral and psychological symptoms of dementia (BPSDs) negatively impact the prognosis of dementia patients and increase caregiver distress. The aims of this study were to clarify the differences of trajectories of 12 kinds of BPSDs by disease severity in four major dementias and to develop charts showing the frequency, severity, and associated caregiver distress (ACD) of BPSDs using the data of a Japan multicenter study (J-BIRD). METHODS: We gathered Neuropsychiatric Inventory (NPI) data of patients with Alzheimer's disease (AD; n = 1091), dementia with Lewy bodies (DLB; n = 249), vascular dementia (VaD; n = 156), and frontotemporal lobar degeneration (FTLD; n = 102) collected during a 5-year period up to July 31, 2013 in seven centers for dementia in Japan...
2016: PloS One
https://www.readbyqxmd.com/read/27531211/-late-onset-depression-pathophysiology-diagnostics-and-treatment
#8
S Notzon, J Alferink, V Arolt
Late-onset depression (LOD) is defined as depression manifesting for the first time in later life. Up to now, there has been no exact definition of the lower age limit for LOD. Psychopathological symptoms of LOD do not fundamentally differ from depression in other phases of life; however, cognitive deficits are typically more pronounced. The LOD is associated with an increased risk of developing dementia. Imaging studies show reduction in gray matter volume and white matter lesions caused by vascular diseases...
September 2016: Der Nervenarzt
https://www.readbyqxmd.com/read/27525127/correlation-between-motor-cortex-excitability-changes-and-cognitive-impairment-in-vascular-depression-pathophysiological-insights-from-a-longitudinal-tms-study
#9
Manuela Pennisi, Giuseppe Lanza, Mariagiovanna Cantone, Riccardo Ricceri, Concetto Spampinato, Giovanni Pennisi, Vincenzo Di Lazzaro, Rita Bella
Background. Transcranial magnetic stimulation (TMS) highlighted functional changes in dementia, whereas there are few data in patients with vascular cognitive impairment-no dementia (VCI-ND). Similarly, little is known about the neurophysiological impact of vascular depression (VD) on deterioration of cognitive functions. We test whether depression might affect not only cognition but also specific cortical circuits in subcortical vascular disease. Methods. Sixteen VCI-ND and 11 VD patients, age-matched with 15 controls, underwent a clinical-cognitive, neuroimaging, and TMS assessment...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27503567/carotid-stiffness-is-associated-with-impairment-of-cognitive-performance-in-individuals-with-and-without-type-2-diabetes-the-maastricht-study
#10
Stefan L C Geijselaers, Simone J S Sep, Miranda T Schram, Martin P J van Boxtel, Thomas T van Sloten, Ronald M A Henry, Koen D Reesink, Abraham A Kroon, Annemarie Koster, Nicolaas C Schaper, Pieter C Dagnelie, Carla J H van der Kallen, Geert Jan Biessels, Coen D A Stehouwer
BACKGROUND AND AIMS: There is increasing evidence linking arterial (mainly aortic) stiffness and type 2 diabetes, a risk factor for arterial stiffness, to cognitive impairment and dementia. However, data on carotid stiffness, which may be especially relevant for cognitive performance, are scarce, and few studies have addressed the interplay between arterial stiffness, type 2 diabetes, and cognitive performance. METHODS: We studied individuals with (n = 197) and without (n = 528) type 2 diabetes, who completed a neuropsychological test battery and underwent applanation tonometry and vascular ultrasound to evaluate aortic (i...
October 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27503360/peripheral-biomarkers-of-stroke-focus-on-circulatory-micrornas
#11
REVIEW
Murali Vijayan, P Hemachandra Reddy
Stroke is the second leading cause of death in the world. Stroke occurs when blood flow stops, and that stoppage results in reduced oxygen supply to neurons in the brain. The occurrence of stroke increases with age, but anyone at any age can suffer from stroke. Recent research has implicated multiple cellular changes in stroke patients, including oxidative stress and mitochondrial dysfunction, inflammatory responses, and changes in mRNA and proteins. Recent research has also revealed that stroke is associated with modifiable and non-modifiable risk factors...
October 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27493900/carotid-stiffness-a-novel-cerebrovascular-disease-risk-factor
#12
REVIEW
Thomas T van Sloten, Coen D A Stehouwer
Carotid stiffening is considered an important element in the pathogenesis of cerebrovascular diseases. These include stroke as well as vascular dementia and depression. However, results of individual studies evaluating the association between carotid stiffening and incident stroke have been inconsistent. Therefore, we have conducted a systematic review and meta-analysis, showing that carotid stiffening is associated with incident stroke independently of cardiovascular risk factors and aortic stiffness. In addition, carotid stiffening improved stroke risk prediction beyond the Framingham stroke risk factors and aortic stiffness...
July 2016: Pulse (Basel, Switzerland)
https://www.readbyqxmd.com/read/27459928/knockdown-of-microrna-195-contributes-to-protein-phosphatase-2a-inactivation-in-rats-with-chronic-brain-hypoperfusion
#13
Cheng-Di Liu, Qin Wang, De-Kang Zong, Shuang-Chao Pei, Yan Yan, Mei-Ling Yan, Lin-Lin Sun, Yang-Yang Hao, Meng Mao, Wen-Jing Xing, Huan Ren, Jing Ai
Reduction of protein phosphatase-2A (PP2A) activity is a common clinical feature of Alzheimer's disease and vascular dementia. In this study, we observed that chronic brain hypoperfusion induced by bilateral common carotid artery occlusion of rats led to PP2A inactivation based on the increase in tyrosine-307 phosphorylation and leucine-309 demethylation of PP2AC and the depression in PP2ABα. Knockdown of miR-195 using overexpression of its antisense molecule oligonucleotide (pre-AMO-miR-195) delivered by a lentivirus (lenti-pre-AMO-miR-195) increased tyrosine-307 phosphorylation and decreased both PP2ABα expression and leucine-309 methylation; these effects were prevented by the overexpression of miR-195 using lenti-pre-miR-195 and controlled by an increase in methylesterase (PME-1) and a decrease in leucine carboxyl methyltransferase-1...
September 2016: Neurobiology of Aging
https://www.readbyqxmd.com/read/27454622/neuropsychiatric-characteristics-of-pib-negative-subcortical-vascular-dementia-versus-behavioral-variant-frontotemporal-dementia
#14
Na-Yeon Jung, Hee Jin Kim, Yeo Jin Kim, Seonwoo Kim, Sang Won Seo, Eun-Joo Kim, Duk L Na
BACKGROUND: Neuropsychiatric symptoms of subcortical vascular dementia (SVaD) are mainly associated with damage to frontal-subcortical circuits and may be similar to symptoms of behavioral variant frontotemporal dementia (bvFTD). The aim of this study was to determine whether the neuropsychiatric manifestations of the Pittsburgh compound B (PiB)-negative SVaD and bvFTD groups differ. METHODS: We compared the Caregiver-Administered Neuropsychiatry Inventory (CGA-NPI) between 48 patients with PiB(-) SVaD and 31 patients with bvFTD...
November 2016: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/27413577/influence-of-medication-on-fatigue-six-months-after-stroke
#15
Amélie Ponchel, Julien Labreuche, Stéphanie Bombois, Christine Delmaire, Régis Bordet, Hilde Hénon
Poststroke fatigue (PSF) is frequent and affects patients' quality of life. Medication use was hypothesized as being responsible for PSF. Our objective was to evaluate potential relationships between 6-month PSF and medication use at discharge and 6 months after an ischemic stroke. This study is part of STROKDEM, an ongoing longitudinal cohort study, whose main aim is to determine predictors of poststroke dementia. Patients were included within 72 hours after an ischemic stroke and followed up with standardized evaluations...
2016: Stroke Research and Treatment
https://www.readbyqxmd.com/read/27411501/neuropsychiatric-symptoms-in-dementia-may-predict-caregiver-burden-a-sicilian-exploratory-study
#16
Michele Torrisi, Maria C De Cola, Angela Marra, Rosaria De Luca, Placido Bramanti, Rocco S Calabrò
BACKGROUND: Behavioural and psychological symptoms of dementia are very common. They represent a main cause of burden and distress in caregivers and can lead to early institutionalization of patients. We aimed to find the most specific behavioural and psychological symptoms of dementia that can strongly affect the caregivers' burden. METHODS: Twenty-seven patients and their caregivers were enrolled in this study. All of the patients were affected by Alzheimer's, vascular, or frontotemporal dementia and were evaluated with the Neuropsychiatric Inventory and Mini-Mental State Examination...
July 13, 2016: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/27395460/-depression-and-bipolar-disorder-risk-factors-and-potential-prevention-of-developing-dementia
#17
Hajime Baba
Epidemiological studies have demonstrated that suffering from depression and bipolar disorder may be risk factors for developing dementia. A mechanism of interactions of several factors, such as vascular disease and glucocorticoid, has been speculated to play a role in the development of dementia. It is suggested that the onset of dementia can be prevented or delayed by preventing the onset and recurrence of depression and bipolar disorder. In the prevent of depression, the management of daily life, such as diet and exercise, is important...
July 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27395459/-post-stroke-dementia
#18
Masafumi Ihara
Post-stroke dementia (PSD) is a clinical entity that encompasses all types of dementia following an index stroke. Current evidence suggests that 25-30% of ischemic stroke survivors develop immediate or delayed vascular cognitive impairment or vascular dementia. The type of stroke can be either ischemic, hemorrhagic or hypoperfusive. There are multiple risk factors for PSD including older age, family history, genetic variants, low educational status, vascular comorbidities, prior transient ischemic attack or recurrent stroke and depressive illness...
July 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27383825/cognitive-training-for-patients-with-dementia-living-in-a-sicilian-nursing-home-a-novel-web-based-approach
#19
Rosaria De Luca, Alessia Bramanti, Maria Cristina De Cola, Simona Leonardi, Michele Torrisi, Bianca Aragona, Antonino Trifiletti, Maria Danilo Ferrara, Piero Amante, Carmela Casella, Placido Bramanti, Rocco Salvatore Calabrò
Dementia is an increasing challenge for health care and social system in developed countries. Interventions with a cognitive focus, also using assistive technology, are leading to promising results in improving cognitive and behavior symptoms in individuals with dementia. Aim of our study was to evaluate the combined effects of the standard cognitive training in addition to web-based rehabilitation in dementia people living in a nursing home. We have studied twenty dementia people (10 females and 10 males) with a mild to moderate cognitive decline (MMSE 25 ± 3...
October 2016: Neurological Sciences
https://www.readbyqxmd.com/read/27382914/diagnosing-young-onset-dementia-can-be-challenging
#20
Samrah Ahmed, Ian Baker, Christopher R Butler
Although the risk of developing dementia increases with age, onset can be as early as the third or fourth decade of life. Genetic influences play a more important role in younger than in older people with dementia, so young onset dementia may cluster in families. Diagnosing young onset dementia is challenging. The range of possible presenting features is broad, encompassing behavioural, cognitive, psychiatric and neurological domains, and symptoms are often subtle initially. Frequently the complaints are misattributed to stress or depression, and the patient is falsely reassured that they are too young to have dementia...
May 2016: Practitioner
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