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Dementia risk factors

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https://www.readbyqxmd.com/read/28429235/regulation-of-human-brain-microvascular-endothelial-cell-adhesion-and-barrier-functions-by-memantine
#1
Fei Wang, Zhirong Zou, Yi Gong, Dong Yuan, Xun Chen, Tao Sun
Vascular risk factors have been linked to cognitive decline and dementia in the elderly. Microvascular inflammation, especially of the endothelium, may contribute to the progression of neurodegenerative events in Alzheimer's disease (AD). Memantine, an uncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist, is a licensed drug used for the treatment of moderate to severe AD. However, little information is available regarding its anti-inflammatory effects on the endothelium. In this study, we investigated the effects of memantine on human brain microvascular endothelial dysfunction induced by the pro-inflammatory cytokine tumor necrosis factor-α (TNF-α)...
April 20, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28428977/19th-workshop-of-the-international-stroke-genetics-consortium-april-28-29-2016-boston-massachusetts-usa-2016-001-mri-defined-cerebrovascular-genomics-the-charge-consortium
#2
S Debette, Y Saba, D Vojinovic, X Jian, H Adams, G Chauhan, M Sargurupremraj, S Kaffashian, J Ding, J C Bis, P Nyquist, K Mather, C Van Duijn, L J Launer, M A Ikram, H Schmidt, W T Longstreth, M Fornage, S Seshadri
The CHARGE consortium is an investigator-initiated collaboration to facilitate meta-analyses of genome-wide association studies (GWAS) and genomic analyses based on next generation sequencing (NGS), among multiple large and well-phenotyped population-based cohort studies around the world (http://www.chargeconsortium.com). Within the neuro-CHARGE working group, we are presenting an update of ongoing genomic studies on MRI-markers of cerebrovascular disease. Large population-based studies have shown that the burden of cerebrovascular disease extends far beyond that of clinical stroke...
March 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28428346/sugar-and-artificially-sweetened-beverages-and-the-risks-of-incident-stroke-and-dementia-a-prospective-cohort-study
#3
Matthew P Pase, Jayandra J Himali, Alexa S Beiser, Hugo J Aparicio, Claudia L Satizabal, Ramachandran S Vasan, Sudha Seshadri, Paul F Jacques
BACKGROUND AND PURPOSE: Sugar- and artificially-sweetened beverage intake have been linked to cardiometabolic risk factors, which increase the risk of cerebrovascular disease and dementia. We examined whether sugar- or artificially sweetened beverage consumption was associated with the prospective risks of incident stroke or dementia in the community-based Framingham Heart Study Offspring cohort. METHODS: We studied 2888 participants aged >45 years for incident stroke (mean age 62 [SD, 9] years; 45% men) and 1484 participants aged >60 years for incident dementia (mean age 69 [SD, 6] years; 46% men)...
April 20, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28427747/percutaneous-endoscopic-gastrostomy-for-aspiration-pneumonia-a-10-year-single-center-experience
#4
Hiromi Tomioka, Shyuji Yamashita, Nobuaki Mamesaya, Masahiro Kaneko
BACKGROUND: The significance of percutaneous endoscopic gastrostomy (PEG) in patients with aspiration pneumonia is unknown. The purpose of this study was to evaluate the clinical characteristics and outcomes of aspiration pneumonia patients who underwent PEG. METHODS: A retrospective cohort study of consecutive patients hospitalized with pneumonia who underwent PEG from 2005 to 2014. RESULTS: Of 2281 cases of pneumonia, 92 patients with aspiration pneumonia underwent PEG during their hospital stay...
May 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/28427492/maternal-lead-exposure-induces-down-regulation-of-hippocampal-insulin-degrading-enzyme-and-nerve-growth-factor-expression-in-mouse-pups
#5
Xing Li, Ning Li, Hua Lei Sun, Jun Yin, Yu Chang Tao, Zhen Xing Mao, Zeng Li Yu, Wen Jie Li, John D Bogden
Lead exposure is a known potential risk factor for neurodegenerative diseases such as Alzheimer's disease (AD). Exposure to lead during the critical phase of brain development has been linked with mental retardation and hypophrenia in later life. This study was aimed to investigate the effects of lead exposure of pregnant mice on the expressions of insulin-degrading enzyme (IDE) and nerve growth factor (NGF) in the hippocampus of their offspring. Blood samples were collected from the tail vein, and after anesthetizing the pups, the brain was excised on postnatal day 21...
March 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28426958/elucidating-the-role-of-trem2-in-alzheimer-s-disease
#6
REVIEW
Jason D Ulrich, Tyler K Ulland, Marco Colonna, David M Holtzman
Alzheimer's disease (AD) is the sixth leading cause of death in the United States and the most common cause of dementia in the elderly. Genetic factors, such as rare variants in the microglial-expressed gene TREM2, strongly impact the lifetime risk of developing AD. Several recent studies have described dramatic TREM2-dependent phenotypes in mouse models of amyloidosis that point to an important role for TREM2 in regulating the response of the innate immune system to Aβ pathology. Furthermore, elevations in the CSF levels of soluble TREM2 fragments implicate changes in inflammatory pathways as occurring coincident with markers of neuronal damage and the onset of clinical dementia in AD...
April 19, 2017: Neuron
https://www.readbyqxmd.com/read/28423934/estimating-dementia-and-receipt-of-informal-care-using-behavioral-risk-factor-surveillance-system-data
#7
Mary Adams
INTRODUCTION: Estimates of US adults with dementia differ widely and don't distinguish adults living in the community. METHODS: Behavioral Risk Factor Surveillance System data from 120 485 households in 21 states that used a cognitive decline module in 2011 were used. Data for both respondents and other adults with subjective cognitive decline (SCD) were included through proxy responses. Using responses to questions about the receipt of informal care for their SCD and diagnosed dementia, estimates were made for each state...
May 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28422298/bridging-type-2-diabetes-and-alzheimer-s-disease-assembling-the-puzzle-pieces-in-the-quest-for-the-molecules-with-therapeutic-and-preventive-potential
#8
REVIEW
Ana Marta de Matos, Maria Paula de Macedo, Amélia Pilar Rauter
Type 2 diabetes (T2D) and Alzheimer's disease (AD) are two age-related amyloid diseases that affect millions of people worldwide. Broadly supported by epidemiological data, the higher incidence of AD among type 2 diabetic patients led to the recognition of T2D as a tangible risk factor for the development of AD. Indeed, there is now growing evidence on brain structural and functional abnormalities arising from brain insulin resistance and deficiency, ultimately highlighting the need for new approaches capable of preventing the development of AD in type 2 diabetic patients...
April 19, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/28420838/factors-associated-with-pneumonia-caused-death-in-older-adults-with-autopsy-confirmed-dementia
#9
Toshie Manabe, Katsuyoshi Mizukami, Hiroyasu Akatsu, Yoshio Hashizume, Takayoshi Ohkubo, Koichiro Kudo, Nobuyuki Hizawa
Objective A better understanding of risk factors for pneumonia-caused death may help to improve the clinical management of dementia. Methods A retrospective observational study was conducted by reviewing the medical charts and autopsy reports of 204 patients who were admitted to hospital, underwent a post-mortem examination, and who were neuropathologically diagnosed with dementia. The risk factors for pneumonia-caused death were examined both as underlying and immediate causes of death using logistic regression models...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28420470/-explore-objective-clinical-variables-for-detecting-delirium-in-icu-patients-a-prospective-case-control-study
#10
Xiaojiang Liu, Jie Lyu, Youzhong An
OBJECTIVE: The aim of this case-control study is to explore clinical objective variables for diagnosing delirium of intensive care unit (ICU) patients. METHODS: According to the method of prospective case-control study, critical adult postoperative patients who were transferred to ICU of Peking University People's Hospital from October 2015 to May 2016 and needed mechanical ventilation were included. After evaluating the Richmond agitation sedation scale score (RASS), the patients whose score were -2 or greater were sorted into two groups, delirium and non-delirium, according to the confusion assessment method for the ICU (CAM-ICU)...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28420323/study-protocol-insight-46-a-neuroscience-sub-study-of-the-mrc-national-survey-of-health-and-development
#11
Christopher A Lane, Thomas D Parker, Dave M Cash, Kirsty Macpherson, Elizabeth Donnachie, Heidi Murray-Smith, Anna Barnes, Suzie Barker, Daniel G Beasley, Jose Bras, David Brown, Ninon Burgos, Michelle Byford, M Jorge Cardoso, Ana Carvalho, Jessica Collins, Enrico De Vita, John C Dickson, Norah Epie, Miklos Espak, Susie M D Henley, Chandrashekar Hoskote, Michael Hutel, Jana Klimova, Ian B Malone, Pawel Markiewicz, Andrew Melbourne, Marc Modat, Anette Schrag, Sachit Shah, Nikhil Sharma, Carole H Sudre, David L Thomas, Andrew Wong, Hui Zhang, John Hardy, Henrik Zetterberg, Sebastien Ourselin, Sebastian J Crutch, Diana Kuh, Marcus Richards, Nick C Fox, Jonathan M Schott
BACKGROUND: Increasing age is the biggest risk factor for dementia, of which Alzheimer's disease is the commonest cause. The pathological changes underpinning Alzheimer's disease are thought to develop at least a decade prior to the onset of symptoms. Molecular positron emission tomography and multi-modal magnetic resonance imaging allow key pathological processes underpinning cognitive impairment - including β-amyloid depostion, vascular disease, network breakdown and atrophy - to be assessed repeatedly and non-invasively...
April 18, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28417674/international-summit-consensus-statement-intellectual-disability-inclusion-in-national-dementia-plans
#12
Karen Watchman, Matthew P Janicki, Michael Splaine, Frode K Larsen, Tiziano Gomiero, Ronald Lucchino
The World Health Organization (WHO) has called for the development and adoption of national plans or strategies to guide public policy and set goals for services, supports, and research related to dementia. It called for distinct populations to be included within national plans, including adults with intellectual disability (ID). Inclusion of this group is important as having Down's syndrome is a significant risk factor for early-onset dementia. Adults with other ID may have specific needs for dementia-related care that, if unmet, can lead to diminished quality of old age...
January 1, 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28417454/prevalence-and-predictors-of-anxiety-in-an-african-sample-of-recent-stroke-survivors
#13
A Ojagbemi, M Owolabi, R Akinyemi, O Arulogun, J Akinyemi, O Akpa, F S Sarfo, E Uvere, R Saulson, S Hurst, B Ovbiagele
OBJECTIVES: Studies considering emotional disturbances in the setting of stroke have primarily focused on depression and been conducted in high-income countries. Anxiety in stroke survivors, which may be associated with its own unique sets of risk factors and clinical parameters, has been rarely investigated in sub-Saharan Africa (SSA). We assess the characteristics of anxiety and anxiety-depression comorbidity in a SSA sample of recent stroke survivors. MATERIALS AND METHODS: We assessed baseline data being collected as part of an intervention to improve one-year blood pressure control among recent (≤1 month) stroke survivors in SSA...
April 17, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28414760/real-benefit-of-a-protective-factor-against-dementia-importance-of-controlling-for-death-example-of-sport-practice
#14
Leslie Grasset, Pierre Joly, Hélène Jacqmin-Gadda, Luc Letenneur, Jérôme Wittwer, Hélène Amieva, Catherine Helmer, Jean François Dartigues
OBJECTIVES: To analyse the impact of a risk factor on several epidemiological indicators of death and dementia; the example of sport practice is presented. METHODS: A population of 3670 non-demented subjects living at home and aged 65 and older from the PAQUID study were followed for 22 years. Sport practice was documented at baseline. Dementia (according to DSM-III-R criteria) and death were assessed at each visit. Analyses were performed with an Illness-Death model, providing results on the risks of dementia and death, probabilities and life expectancies...
2017: PloS One
https://www.readbyqxmd.com/read/28414578/the-impact-of-in-home-services-utilization-on-the-institutionalization-of-older-people-in-korea
#15
Jung-Kyu Choi, Minjin Kang, Euasin Joung
As a result of aging populations, institutionalization of older people is creating an increasing financial burden in many countries. The purpose of the present study was to explore the impact of in-home services utilization on institutionalization. The subjects were newly certified as eligible for long-term care insurance between January and February 2009 in Korea. The follow-up period was 40 months to April 2012. We used logistic regression models to identify factors influencing the transition to institutional service, adjusting for gender, age, living status, income level, ADLs, and chronic disease...
April 17, 2017: Journal of Aging & Social Policy
https://www.readbyqxmd.com/read/28413999/improving-sensitivity-to-detect-mild-cognitive-impairment-cognitive-load-dual-task-gait-speed-assessment
#16
Rebecca K MacAulay, Mark T Wagner, Dana Szeles, Nicholas J Milano
OBJECTIVES: Longitudinal research indicates that cognitive load dual-task gait assessment is predictive of cognitive decline and thus might provide a sensitive measure to screen for mild cognitive impairment (MCI). However, research among older adults being clinically evaluated for cognitive concerns, a defining feature of MCI, is lacking. The present study investigated the effect of performing a cognitive task on normal walking speed in patients presenting to a memory clinic with cognitive complaints...
April 17, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28413412/subjective-cognitive-impairment-is-a-predominantly-benign-condition-in-memory-clinic-patients-followed-for-6-years-the-gothenburg-oslo-mci-study
#17
Erik Hessen, Marie Eckerström, Arto Nordlund, Ina Selseth Almdahl, Jacob Stålhammar, Maria Bjerke, Carl Eckerström, Mattias Göthlin, Tormod Fladby, Ivar Reinvang, Anders Wallin
BACKGROUND/AIMS: In the quest for prevention or treatment, there is a need to find early markers for preclinical dementia. This study observed memory clinic patients with subjective cognitive impairment (SCI) and normal cognitive function at baseline. The primary aim was to address SCI as a potential risk factor for cognitive decline. The secondary aim was to address a potential relation between (1) baseline cerebrospinal fluid biomarkers and (2) a decline in memory performance over the first 2 years of follow-up, with a possible cognitive decline after 6 years...
January 2017: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/28412926/acute-symptomatic-seizures-in-geriatric-patients-with-multiple-risk-factors-a-diagnostic-challenge
#18
Ralf Landwehr, Robert Liszka
Acute symptomatic seizures and epileptic disorders are frequent health problems of elderly patients. An early and reliable distinction of the seizure etiology is important to ensure adequate treatment, and to prevent unwarranted diagnostic and therapeutic procedures. The most common causes of acute symptomatic seizures - acute cerebrovascular disorders, metabolic disorders, traumatic brain injury, meningo-encephalitis, cerebral tumors, and withdrawal of alcohol and other central agents - are well-defined and seem to permit straightforward diagnostic and therapeutic strategies...
April 13, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28412481/environmental-and-clinical-risk-factors-for-delirium-in-a-neurosurgical-center-a-prospective-study
#19
Fumihiro Matano, Takayuki Mizunari, Keiko Yamada, Shiro Kobayashi, Yasuo Murai, Akio Morita
INTRODUCTION: Few reports of delirium-related risk factors have focused on environmental risk factors and clinical risk factors, such as white matter signal abnormalities on magnetic resonance imaging (MRI) FLAIR images. MATERIAL & METHODS: We prospectively enrolled 253 patients admitted to our neurosurgical center between December 2014 and June 2015 and analyzed a total of 220 patients (100 males; mean age, 64.1 years; age range, 17-92 years). The upper 4 points of the Intensive Care Delirium Screening Checklist (ICDSC) indicated delirium...
April 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28410661/vascular-contributions-to-cognitive-impairment-in-late-life
#20
REVIEW
Helena C Chui, Liliana Ramirez Gomez
Cerebrovascular disease (CVD) is the second leading cause of cognitive impairment in late life. Structural neuroimaging offers the most sensitive and specific biomarkers for hemorrhages and infarcts, but there are significant limitations in its ability to detect microvascular disease, microinfarcts, dynamic changes in the blood-brain barrier, and preclinical cerebrovascular disease. Autopsy studies disclose the common co-occurrence of vascular and neurodegenerative conditions, suggesting that in late life, a multifactorial approach to cognitive impairment may be more appropriate than traditional dichotomous classifications...
May 2017: Neurologic Clinics
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