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Dementia risk factors

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https://www.readbyqxmd.com/read/29775643/myocardial-infarction-induced-hippocampal-microtubule-damage-by-cardiac-originating-microrna-1-in-mice
#1
Lin-Lin Sun, Ming-Jing Duan, Ji-Chao Ma, Ling Xu, Meng Mao, Das Biddyut, Qin Wang, Chao Yang, Shuai Zhang, Yi Xu, Lin Yang, You Tian, Ying Liu, Sheng-Nan Xia, Ke-Xin Li, Zhuo Jin, Qiaojie Xiong, Jing Ai
Cardiovascular diseases are risk factors for dementia, but the mechanisms remain elusive. Here, we report that myocardial infarction (MI) generated by the ligation of the left coronary artery (LCA) could lead to increased miR-1 levels in the hippocampus and blood with neuronal microtubule damage and decreased TPPP/p25 protein expression in the hippocampus. These changes could be prevented by a knockdown of miR-1 using hippocampal stereotaxic injections of anti-miR-1 oligonucleotide fragments carried by a lentivirus vector (lenti-pre-AMO-miR-1)...
May 15, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29772021/analysis-of-risk-factors-for-mild-cognitive-impairment-based-on-word-list-memory-test-results-and-questionnaire-responses-in-healthy-japanese-individuals-registered-in-an-online-database
#2
Masayo Ogawa, Daichi Sone, Kazushi Maruo, Hiroyuki Shimada, Keisuke Suzuki, Hiroshi Watanabe, Hiroshi Matsuda, Hidehiro Mizusawa
Although the development of effective therapeutic drugs and radical treatment options for dementia and Alzheimer's disease (AD) remains urgent, progress in recent clinical trials of AD drugs has been less than adequate. In order to advance the progress of clinical trials, it is necessary to establish more efficient methods of recruitment. In Japan, there are registration systems stratified by mild cognitive impairment and preclinical and clinical stages of early and advanced stage dementia, but there is no registration system for healthy individuals yet...
2018: PloS One
https://www.readbyqxmd.com/read/29770238/charlson-comorbidity-index-as-a-predictor-of-periodontal-disease-in-elderly-participants
#3
Jae-Hong Lee, Jung-Kyu Choi, Seong-Nyum Jeong, Seong-Ho Choi
Purpose: This study investigated the validity of the Charlson comorbidity index (CCI) as a predictor of periodontal disease (PD) over a 12-year period. Methods: Nationwide representative samples of 149,785 adults aged ≥60 years with PD (International Classification of Disease, 10th revision [ICD-10], K052-K056) were derived from the National Health Insurance Service-Elderly Cohort during 2002-2013. The degree of comorbidity was measured using the CCI (grade 0-6), including 17 diseases weighted on the basis of their association with mortality, and data were analyzed using multivariate Cox proportional-hazards regression in order to investigate the associations of comorbid diseases (CDs) with PD...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29769839/a-novel-association-of-polymorphism-in-the-itga4-gene-encoding-the-vla-4-%C3%AE-4-subunit-with-increased-risk-of-alzheimer-s-disease
#4
Vladimira Durmanova, Zuzana Parnicka, Juraj Javor, Gabriel Minarik, Lubomir Vrazda, Barbora Vaseckova, Karin Gmitterova, Maria Kralova, Jan Pecenak, Peter Filipcik, Ivana Shawkatova
Alzheimer's disease (AD) is the most prevalent cause of dementia in elderly people worldwide. Many studies support the hypothesis that the inflammation of the CNS contributes to the neurodegeneration and disease progression. The integrin molecule α 4 β 1, also known as very late antigen 4 (VLA-4), belongs to adhesion molecules that activate the inflammatory process through the migration of immune cells into the CNS. Therefore, the objective of our study was to analyze the association between two polymorphisms located in the ITGA4 gene encoding the α 4 subunit of VLA-4 and the risk of AD...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29768974/brain-phospholipid-precursors-administered-post-injury-reduce-tissue-damage-and-improve-neurological-outcome-in-experimental-traumatic-brain-injury
#5
Orli Thau-Zuchman, Rita Noutel Gomes, Simon Christopher Dyall, Meirion Davis, John V Priestley, Martine Groenendijk, Martijn DE Wilde, Jordi Lopez-Tremoleda, Adina T Michael-Titus
Traumatic brain injury (TBI) leads to cellular loss, destabilisation of membranes, disruption of synapses and altered brain connectivity, and increased risk of neurodegenerative disease. A significant and long-lasting decrease in phospholipids (PL), essential membrane constituents, has recently been reported in plasma and brain tissue, in human and experimental TBI. We hypothesised that supporting PL synthesis post-injury could improve outcome after TBI. We tested this hypothesis using a multi-nutrient combination designed to support the biosynthesis of phospholipids and available for clinical use...
May 17, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29768391/prevention-of-late-life-dementia-what-works-and-what-does-not
#6
Philip W Tipton, Neill R Graff-Radford
Advances in the treatment and prevention of disease have contributed to an aging global population. Subsequently, there is an increasing prevalence of age-related conditions such as dementia. There are currently no disease-modifying therapies commercially available. There is a growing emphasis on strategies to prevent dementia from occurring. We have reviewed the relevant literature pertaining to dementia risk and putative prevention factors. We present our findings by summarizing the pertinent items that may play a role in prevention and conclude our recommendations at this time...
May 16, 2018: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29763593/midlife-vascular-risk-factors-and-midlife-cognitive-status-in-relation-to-prevalence-of-mild-cognitive-impairment-and-dementia-in-later-life-the-atherosclerosis-risk-in-communities-study
#7
David S Knopman, Rebecca F Gottesman, A Richey Sharrett, Amanda L Tapia, Sonia DavisThomas, B Gwen Windham, Laura Coker, Andrea L C Schneider, Alvaro Alonso, Josef Coresh, Marilyn S Albert, Thomas H Mosley
INTRODUCTION: The interplay between midlife vascular risk factors and midlife cognitive function with later life mild cognitive impairment (MCI) and dementia (DEM) is not well understood. METHODS: In the Atherosclerosis Risk in Communities Study, cardiovascular risk factors and cognition were assessed in midlife, ages 45-64 years. In 2011-2013, 20-25 years later, all consenting Atherosclerosis Risk in Communities participants underwent a cognitive and neurological evaluation and were given adjudicated diagnoses of cognitively normal, MCI, or DEM...
May 12, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29761589/prevalence-and-effect-factors-of-dementia-among-the-community-elderly-in-chongqing-china
#8
Jing Deng, Cheng Cao, Yi Jiang, Bin Peng, Tingting Wang, Ke Yan, Jingxi Lian, Zengzi Wang
BACKGROUND: China is an ageing society, with around 150 million people aged 60 years or older. The prevalence of dementia will increase by more than 100% in the coming 20 years. This study aimed to investigate the prevalence and effects of dementia among the community elderly in Chongqing, China. METHODS: Cluster sampling was adopted. A sample of elderly individuals aged 60 years and older was extracted as research subjects from three counties within Chongqing, China...
May 14, 2018: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/29761134/mild-cognitive-impairment-in-republic-of-georgia
#9
Marina Janelidze, Nina Mikeladze, Nazibrola Bochorishvili, Ann Dzagnidze, Mariam Kapianidze, Nino Mikava, Irene Khatiashvili, Ekaterina Mirvelashvili, Nino Shiukashvili, John Lynch, Zurab Nadareishvili
Objective: The goal of this study was to estimate the prevalence of mild cognitive impairment (MCI) in Georgia. Method: A population-based study was conducted using Georgian version of the Montreal Cognitive Assessment (MoCA) and its cognitive domain index score. Results: Of the initial cohort of 1,000 subjects, 851 met inclusion criteria. The prevalence of MCI was 13.3%, and it was associated with age >65 years (odds ratio [OR] = 4.51, 95% confidence interval [CI] = [3.00, 6.75]), urban residence (OR = 0...
January 2018: Gerontology & Geriatric Medicine
https://www.readbyqxmd.com/read/29761124/progranulin-levels-in-blood-in-alzheimer-s-disease-and-mild-cognitive-impairment
#10
Yonatan A Cooper, Daniel Nachun, Deepika Dokuru, Zhongan Yang, Anna M Karydas, Ginette Serrero, Binbin Yue, Adam L Boxer, Bruce L Miller, Giovanni Coppola
Objective: Changes in progranulin ( GRN ) expression have been hypothesized to alter risk for Alzheimer's disease (AD). We investigated the relationship between GRN expression in peripheral blood and clinical diagnosis of AD and mild cognitive impairment (MCI). Methods: Peripheral blood progranulin gene expression was measured, using microarrays from Alzheimer's ( n = 186), MCI ( n = 118), and control ( n = 204) subjects from the University of California San Francisco Memory and Aging Center (UCSF-MAC) and two independent published series (AddNeuroMed and ADNI)...
May 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29760643/combining-polygenic-hazard-score-with-volumetric-mri-and-cognitive-measures-improves-prediction-of-progression-from-mild-cognitive-impairment-to-alzheimer-s-disease
#11
Karolina Kauppi, Chun Chieh Fan, Linda K McEvoy, Dominic Holland, Chin Hong Tan, Chi-Hua Chen, Ole A Andreassen, Rahul S Desikan, Anders M Dale
Improved prediction of progression to Alzheimer's Disease (AD) among older individuals with mild cognitive impairment (MCI) is of high clinical and societal importance. We recently developed a polygenic hazard score (PHS) that predicted age of AD onset above and beyond APOE . Here, we used data from the Alzheimer's Disease Neuroimaging Initiative (ADNI) to further explore the potential clinical utility of PHS for predicting AD development in older adults with MCI. We examined the predictive value of PHS alone and in combination with baseline structural magnetic resonance imaging (MRI) data on performance on the Mini-Mental State Exam (MMSE)...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29758945/a-10-year-follow-up-of-adiposity-and-dementia-in-swedish-adults-aged-70-years-and-older
#12
Ilse A C Arnoldussen, Valter Sundh, Kristoffer Bäckman, Silke Kern, Svante Östling, Kaj Blennow, Henrik Zetterberg, Ingmar Skoog, Amanda J Kiliaan, Deborah R Gustafson
BACKGROUND: Adiposity measured in mid- or late-life and estimated using anthropometric measures such as body mass index (BMI) and waist-to-hip ratio (WHR), or metabolic markers such as blood leptin and adiponectin levels, is associated with late-onset dementia risk. However, during later life, this association may reverse and aging- and dementia-related processes may differentially affect adiposity measures. OBJECTIVE: We explored associations of concurrent BMI, WHR, and blood leptin and high molecular weight adiponectin levels with dementia occurrence...
May 11, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29758591/mineralocorticoid-receptor-antagonism-prevents-obesity-induced-cerebral-artery-remodeling-and-reduces-white-matter-injury-in-rats
#13
Paulo Wagner Pires, Jonathon Lee McClain, Sebastian F Hayoz, Anne McLaren Dorrance
Midlife obesity is a risk factor for dementia development. Obesity has also been linked to hyperaldosteronism, and this can be modeled in rats by high fat (HF) feeding from weaning. Aldosterone, or activation of the mineralocorticoid receptor (MR) causes cerebrovascular injury in lean hypertensive rats. We hypothesized that rats fed a HF diet would show inward middle cerebral artery (MCA) remodeling that could be prevented by MR antagonism. We further proposed that the cerebral artery remodeling would be associated with white mater injury...
May 14, 2018: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/29756803/attitude-toward-own-aging-as-a-risk-factor-for-cognitive-disorder-in-old-age-12-year-evidence-from-the-ilse-study
#14
Jelena S Siebert, Hans-Werner Wahl, Christina Degen, Johannes Schröder
Previous research has demonstrated the harmful impact of subjective aging processes (e.g., negative age self-stereotyping) on normal cognitive aging in different domains of cognitive functioning, such as memory, executive function, and fluid abilities. Recently, subjective aging has also been linked to important biomarkers of Alzheimer's disease (AD) and dementia-related outcomes, indicating associations with pathological cognitive aging. With data from the Interdisciplinary Longitudinal Study of Adult Development and Aging (ILSE), the present study extends this research by examining the long-term effect of attitude toward own aging (ATOA) on expert-based clinical diagnosis of mild cognitive impairment (MCI) and AD in old age...
May 2018: Psychology and Aging
https://www.readbyqxmd.com/read/29756003/onset-and-remission-of-psychosis-in-parkinson-s-disease-pharmacologic-and-motoric-markers
#15
Jared Thomas Hinkle, Kate Perepezko, Catherine C Bakker, Martinus P G Broen, Kathleen Chin, Ted M Dawson, Vanessa Johnson, Zoltan Mari, Cherie L Marvel, Kelly A Mills, Alexander Pantelyat, Olga Pletnikova, Liana S Rosenthal, Melissa D Shepard, Daniel A Stevens, Juan C Troncoso, Jiangxia Wang, Gregory M Pontone
Background: Psychosis is among the most disabling complications of Parkinson's disease (PD). The chronicity of PD psychosis remains understudied and the relative importance of dopaminergic therapy versus the disease process itself in engendering psychosis remains unclear. Objectives: To examine pharmacologic and motoric correlates of PD psychosis onset and remission in a longitudinally monitored PD cohort. Methods: We analyzed data from 165 participants enrolled in a longitudinal PD study through the Morris K...
January 2018: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/29755512/proton-pump-inhibitors-and-dementia-physiopathological-mechanisms-and-clinical-consequences
#16
REVIEW
Gloria Ortiz-Guerrero, Diana Amador-Muñoz, Carlos Alberto Calderón-Ospina, Daniel López-Fuentes, Mauricio Orlando Nava Mesa
Alzheimer's disease (AD) is the most common type of dementia, mainly encompassing cognitive decline in subjects aged ≥65 years. Further, AD is characterized by selective synaptic and neuronal degeneration, vascular dysfunction, and two histopathological features: extracellular amyloid plaques composed of amyloid beta peptide (A β ) and neurofibrillary tangles formed by hyperphosphorylated tau protein. Dementia and AD are chronic neurodegenerative conditions with a complex physiopathology involving both genetic and environmental factors...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29752657/increased-adiponectin-is-associated-with-cerebral-white-matter-lesions-in-the-elderly-with-cognitive-impairment
#17
Youshi Fujita, Takashi Toyomoto, Tomomi Sakoh-Goshima, Yutaka Kohno, Masafumi Okada, Tadanori Hamano, Yasunari Nakamoto
Adiponectin is an adipocyte-derived peptide that increases with age and is thought to protect against atherosclerotic vascular changes and organ damage. However, paradoxically, higher adiponectin levels are associated with increased risk for cardiovascular events and mortality. We investigated whether this adiponectin paradox occurs in elderly people with cognitive impairment. Fifty-two elderly participants with mild cognitive impairment or dementia (20 male and 32 female, aged 60-93 years, mean 80.0) were recruited...
May 11, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29752159/predictors-of-falls-and-fractures-leading-to-hospitalization-in-people-with-dementia-a-representative-cohort-study
#18
Shalini Sharma, Christoph Mueller, Robert Stewart, Nicola Veronese, Davy Vancampfort, Ai Koyanagi, Sarah E Lamb, Gayan Perera, Brendon Stubbs
OBJECTIVES: Investigate predictors of falls and fractures leading to hospitalization in a large cohort of people with dementia. DESIGN: A retrospective cohort study. SETTING AND PARTICIPANTS: People with diagnosed dementia between January 2007 and March 2013, aged >65 years, were assembled using data from the Maudsley Biomedical Research Centre Case Register, from 4 boroughs in London serving a population of 1.3 million people. MEASURES: Falls and/or fractures leading to hospitalization were ascertained from linked national records...
May 2, 2018: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/29752032/knowledge-and-beliefs-about-dementia-among-the-general-public-a-preliminary-report-on-the-cuban-population
#19
Y Broche-Pérez, Z Fernández-Fleites, B González, M A Hernández Pérez, Y I Salazar-Guerra
BACKGROUND: The number of people diagnosed with dementia globally has dramatically increased in recent years. The objective of this study was to explore beliefs and knowledge among the Cuban population with regard to the risk factors that may lead to dementia and the actions that may be taken to prevent it. METHOD: In an exploratory cross-sectional study, we surveyed a total of 391 people aged between 18 and 96 years. The results were stratified by sex, age range, level of education, and contact with dementia...
May 8, 2018: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/29750252/whole-exome-sequencing-of-an-exceptional-longevity-cohort
#20
Haakon B Nygaard, E Zeynep Erson-Omay, Xiujuan Wu, Brianne A Kent, Cecily Q Bernales, Daniel M Evans, Matthew J Farrer, Carles Vilariño-Güell, Stephen M Strittmatter
Centenarians represent a unique cohort to study the genetic basis for longevity and factors determining the risk of neurodegenerative disorders, including Alzheimer's disease (AD). The estimated genetic contribution to longevity is highest in centenarians and supercententenarians, but few genetic variants have been shown to clearly impact this phenotype. While the genetic risk for AD and other dementias is now well understood, the frequency of known dementia risk variants in centenarians is not fully characterized...
May 10, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
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