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Dementia

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174 papers 100 to 500 followers
https://www.readbyqxmd.com/read/28642821/late-onset-dementia-a-mosaic-of-prototypical-pathologies-modifiable-by-diet-and-lifestyle
#1
Mark P Mattson
Idiopathic late-onset dementia (ILOD) describes impairments of memory, reasoning and/or social abilities in the elderly that compromise their daily functioning. Dementia occurs in several major prototypical neurodegenerative disorders that are currently defined by neuropathological criteria, most notably Alzheimer's disease (AD), Lewy body dementia, frontotemporal dementia (FTD) and hippocampal sclerosis of aging (HSA). However, people who die with ILOD commonly exhibit mixed pathologies that vary within and between brain regions...
2015: NPJ Aging and Mechanisms of Disease
https://www.readbyqxmd.com/read/28650104/alzheimer-s-disease-and-metabolic-syndrome-a-link-from-oxidative-stress-and-inflammation-to-neurodegeneration
#2
REVIEW
Eduardo Rojas-Gutierrez, Guadalupe Muñoz-Arenas, Samuel Treviño, Blanca Espinosa, Raúl Chavez, Karla Rojas, Gonzalo Flores, Alfonso Díaz, Jorge Guevara
Alzheimer's disease (AD) is the most common cause of dementia and one of the most important causes of morbidity and mortality among the aging population. AD diagnosis is made post-mortem, and the two pathologic hallmarks, particularly evident in the end stages of the illness, are amyloid plaques and neurofibrillary tangles (NFT). Currently, there is no curative treatment for AD. Additionally, there is a strong relation between oxidative stress, metabolic syndrome (MetS) and AD. The high levels of circulating lipids and glucose imbalances amplify lipid peroxidation that gradually diminishes the antioxidant systems, causing high levels of oxidative metabolism that affects cell structure, leading to neuronal damage...
June 26, 2017: Synapse
https://www.readbyqxmd.com/read/28655740/diabetes-in-a-large-dementia-cohort-clinical-characteristics-and-treatment-from-the-swedish-dementia-registry
#3
Juraj Secnik, Pavla Cermakova, Seyed-Mohammad Fereshtehnejad, Pontus Dannberg, Kristina Johnell, Johan Fastbom, Bengt Winblad, Maria Eriksdotter, Dorota Religa
OBJECTIVE: We aimed to investigate the differences in clinical characteristics and pharmacological treatment associated with the presence of diabetes in a large cohort of patients with dementia. RESEARCH DESIGN AND METHODS: A cross-sectional registry-based study was conducted using data from the Swedish Dementia Registry (SveDem). Data on dementia diagnosis, dementia type, and demographic determinants were extracted from SveDem. Data from Swedish Patient Register and Prescribed Drug Register were combined for the diagnosis of diabetes...
June 27, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28585932/plasma-rest-a-novel-candidate-biomarker-of-alzheimer-s-disease-is-modified-by-psychological-intervention-in-an-at-risk-population
#4
N J Ashton, A Hye, C A Leckey, A R Jones, A Gardner, C Elliott, J L Wetherell, E J Lenze, R Killick, N L Marchant
The repressor element 1-silencing transcription (REST) factor is a key regulator of the aging brain's stress response. It is reduced in conditions of stress and Alzheimer's disease (AD), which suggests that increasing REST may be neuroprotective. REST can be measured peripherally in blood plasma. Our study aimed to (1) examine plasma REST levels in relation to clinical and biological markers of neurodegeneration and (2) alter plasma REST levels through a stress-reduction intervention-mindfulness training. In study 1, REST levels were compared across the following four well-characterized groups: healthy elderly (n=65), mild cognitive impairment who remained stable (stable MCI, n=36), MCI who later converted to dementia (converter MCI, n=29) and AD (n=65) from the AddNeuroMed cohort...
June 6, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28579952/brain-network-for-the-core-deficits-of-semantic-dementia-a-neural-network-connectivity-behavior-mapping-study
#5
Yan Chen, Keliang Chen, Junhua Ding, Yumei Zhang, Qing Yang, Yingru Lv, Qihao Guo, Zaizhu Han
Individuals with semantic dementia (SD) typically suffer from selective semantic deficits due to degenerative brain atrophy. Although some brain regions have been found to be correlated with the semantic impairments of SD patients, it is unclear if the damage is actually responsible for SD patients' semantic disorders because these findings were primarily obtained by examining the roles of local individual regions themselves without considering the influence of other regions that are functionally or structurally connected to the local individual regions...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28588063/moderate-alcohol-consumption-as-risk-factor-for-adverse-brain-outcomes-and-cognitive-decline-longitudinal-cohort-study
#6
Anya Topiwala, Charlotte L Allan, Vyara Valkanova, Enikő Zsoldos, Nicola Filippini, Claire Sexton, Abda Mahmood, Peggy Fooks, Archana Singh-Manoux, Clare E Mackay, Mika Kivimäki, Klaus P Ebmeier
Objectives To investigate whether moderate alcohol consumption has a favourable or adverse association or no association with brain structure and function.Design Observational cohort study with weekly alcohol intake and cognitive performance measured repeatedly over 30 years (1985-2015). Multimodal magnetic resonance imaging (MRI) was performed at study endpoint (2012-15).Setting Community dwelling adults enrolled in the Whitehall II cohort based in the UK (the Whitehall II imaging substudy).Participants 550 men and women with mean age 43...
June 6, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28598844/combustion-derived-nanoparticles-in-key-brain-target-cells-and-organelles-in-young-urbanites-culprit-hidden-in-plain-sight-in-alzheimer-s-disease-development
#7
Angélica González-Maciel, Rafael Reynoso-Robles, Ricardo Torres-Jardón, Partha S Mukherjee, Lilian Calderón-Garcidueñas
Millions of children and young adults are exposed to fine particulate matter (PM2.5) and ozone, associated with Alzheimer's disease (AD) risk. Mexico City (MC) children exhibit systemic and brain inflammation, low cerebrospinal fluid (CSF) Aβ1-42, breakdown of nasal, olfactory, alveolar-capillary, duodenal, and blood-brain barriers, volumetric and metabolic brain changes, attention and short-term memory deficits, and hallmarks of AD and Parkinson's disease. Airborne iron-rich strongly magnetic combustion-derived nanoparticles (CDNPs) are present in young urbanites' brains...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28592453/diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#8
REVIEW
Ian G McKeith, Bradley F Boeve, Dennis W Dickson, Glenda Halliday, John-Paul Taylor, Daniel Weintraub, Dag Aarsland, James Galvin, Johannes Attems, Clive G Ballard, Ashley Bayston, Thomas G Beach, Frédéric Blanc, Nicolaas Bohnen, Laura Bonanni, Jose Bras, Patrik Brundin, David Burn, Alice Chen-Plotkin, John E Duda, Omar El-Agnaf, Howard Feldman, Tanis J Ferman, Dominic Ffytche, Hiroshige Fujishiro, Douglas Galasko, Jennifer G Goldman, Stephen N Gomperts, Neill R Graff-Radford, Lawrence S Honig, Alex Iranzo, Kejal Kantarci, Daniel Kaufer, Walter Kukull, Virginia M Y Lee, James B Leverenz, Simon Lewis, Carol Lippa, Angela Lunde, Mario Masellis, Eliezer Masliah, Pamela McLean, Brit Mollenhauer, Thomas J Montine, Emilio Moreno, Etsuro Mori, Melissa Murray, John T O'Brien, Sotoshi Orimo, Ronald B Postuma, Shankar Ramaswamy, Owen A Ross, David P Salmon, Andrew Singleton, Angela Taylor, Alan Thomas, Pietro Tiraboschi, Jon B Toledo, John Q Trojanowski, Debby Tsuang, Zuzana Walker, Masahito Yamada, Kenji Kosaka
The Dementia with Lewy Bodies (DLB) Consortium has refined its recommendations about the clinical and pathologic diagnosis of DLB, updating the previous report, which has been in widespread use for the last decade. The revised DLB consensus criteria now distinguish clearly between clinical features and diagnostic biomarkers, and give guidance about optimal methods to establish and interpret these. Substantial new information has been incorporated about previously reported aspects of DLB, with increased diagnostic weighting given to REM sleep behavior disorder and (123)iodine-metaiodobenzylguanidine (MIBG) myocardial scintigraphy...
July 4, 2017: Neurology
https://www.readbyqxmd.com/read/28589443/metformin-a-future-therapy-for-neurodegenerative-diseases
#9
REVIEW
Magdalena Markowicz-Piasecka, Joanna Sikora, Aleksandra Szydłowska, Agata Skupień, Elżbieta Mikiciuk-Olasik, Kristiina M Huttunen
Type 2 diabetes mellitus (T2DM) is a complex, chronic and progressive metabolic disease, which is characterized by relative insulin deficiency, insulin resistance, and high glucose levels in blood. Esteemed published articles and epidemiological data exhibit an increased risk of developing Alzheimer's disease (AD) in diabetic pateints. Metformin is the most frequently used oral anti-diabetic drug, which apart from hypoglycaemic activity, improves serum lipid profiles, positively influences the process of haemostasis, and possesses anti-inflammatory properties...
June 6, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28468844/space-and-location-of-cerebral-microbleeds-cognitive-decline-and-dementia-in-the-community
#10
Jie Ding, Sigurður Sigurðsson, Pálmi V Jónsson, Gudny Eiriksdottir, Osorio Meirelles, Olafur Kjartansson, Oscar L Lopez, Mark A van Buchem, Vilmundur Gudnason, Lenore J Launer
OBJECTIVE: To assess the association of the number and anatomic location of cerebral microbleeds (CMBs), visible indicators of microvascular damage on MRI, with incident cognitive disease in the general population of older people. METHODS: In the longitudinal population-based Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study, 2,602 participants 66 to 93 years of age and free of prevalent dementia underwent brain MRI and cognitive testing of verbal memory, processing speed, and executive function at baseline and a mean of 5...
May 30, 2017: Neurology
https://www.readbyqxmd.com/read/28342649/the-prognosis-of-dementia-with-lewy-bodies
#11
REVIEW
Christoph Mueller, Clive Ballard, Anne Corbett, Dag Aarsland
Dementia with Lewy bodies is the second most common form of neurodegenerative dementia, yet scarce evidence is available about its prognosis and natural history, which are crucial to inform clinical practice and research. Patients with dementia with Lewy bodies might have a less favourable prognosis, with accelerated cognitive decline, shorter lifespan, and increased admission to residential care than patients with Alzheimer's disease. Health-care costs and, importantly, caregiver burden, are also reported to be higher in dementia with Lewy bodies than in Alzheimer's disease...
May 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28321840/association-of-proton-pump-inhibitors-usage-with-risk-of-pneumonia-in-dementia-patients
#12
Sai-Wai Ho, Ying-Hock Teng, Shun-Fa Yang, Han-Wei Yeh, Yu-Hsun Wang, Ming-Chih Chou, Chao-Bin Yeh
OBJECTIVES: To determine the association between usages of proton pump inhibitors (PPIs) and subsequent risk of pneumonia in dementia patients. DESIGN: Retrospective cohort study. SETTING: Taiwanese National Health Insurance Research Database. PARTICIPANTS: The study cohort consisted of 786 dementia patients with new PPI usage and 786 matched dementia patients without PPI usage. MEASUREMENTS: The study endpoint was defined as the occurrence of pneumonia...
March 21, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28326534/smell-loss-predicts-mortality-risk-regardless-of-dementia-conversion
#13
Ingrid Ekström, Sara Sjölund, Steven Nordin, Annelie Nordin Adolfsson, Rolf Adolfsson, Lars-Göran Nilsson, Maria Larsson, Jonas K Olofsson
OBJECTIVES: To determine whether dementia could explain the association between poor olfactory performance and mortality risk within a decade-long follow-up period. DESIGN: Prospective cohort study. SETTING: Betula Study, Umeå, Sweden. PARTICIPANTS: A population-based sample of adult participants without dementia at baseline aged 40 to 90 (N = 1,774). MEASUREMENTS: Olfactory performance using the Scandinavian Odor-Identification Test (SOIT) and self-reported olfactory function; several social, cognitive, and medical risk factors at baseline; and incident dementia during the following decade...
March 22, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28378345/difficulty-managing-medications-and-finances-in-older-adults-a-10-year-cohort-study
#14
Nienke Bleijenberg, Alexander K Smith, Sei J Lee, Irena Stijacic Cenzer, John W Boscardin, Kenneth E Covinsky
BACKGROUND: Difficulty managing medicines and finances becomes increasingly common with advanced age, and compromises the ability to live safely and independently. Remarkably little is known how often this occurs. OBJECTIVES: To provide population-based estimates of the risk of developing incident difficulty managing medications and finances in older adults. DESIGN: A prospective cohort study. SETTING: The Health and Retirement Study (HRS), a nationally representative study of older adults...
April 5, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28390178/slow-processing-speed-predicts-falls-in-older-adults-with-a-falls-history-1-year-prospective-cohort-study
#15
Jennifer C Davis, John R Best, Karim M Khan, Larry Dian, Stephen Lord, Kim Delbaere, Chun Liang Hsu, Winnie Cheung, Wency Chan, Teresa Liu-Ambrose
BACKGROUND/OBJECTIVES: A previous fall is a strong predictor of future falls. Recent epidemiologic data suggest that deficits in processing speed predict future injurious falls. Our primary objective was to determine a parsimonious predictive model of future falls among older adults who experienced ≥1 fall in the past 12 months based on the following categories: counts of (1) total, (2) indoor, (3) outdoor or (4) non-injurious falls; (5) one mild or severe injury fall (yes vs no); (6) an injurious instead of a non-injurious fall; and (7) an outdoor instead of an indoor fall...
May 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28424901/driving-with-a-neurodegenerative-disorder-an-overview-of-the-current-literature
#16
REVIEW
Milou Jacobs, Ellen P Hart, Raymund A C Roos
Driving is important for employment, social activities, and for the feeling of independence. The decision to cease driving affects the quality of life and has been associated with reduced mobility, social isolation, and sadness. Patients with neurodegenerative disorders can experience difficulties while driving due to their cognitive, motor, and behavioral impairments. The aim of this review is to summarize the available literature on changes in driving competence and behavior in patients with neurodegenerative disorders, with a particular focus on Huntington's (HD), Parkinson's (PD), and Alzheimer's disease (AD)...
April 19, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28478596/deciphering-the-causes-of-sporadic-late-onset-cerebellar-ataxias-a-prospective-study-with-implications-for-diagnostic-work
#17
O Gebus, S Montaut, B Monga, T Wirth, C Cheraud, C Alves Do Rego, I Zinchenko, G Carré, M Hamdaoui, G Hautecloque, L Nguyen-Them, B Lannes, J B Chanson, O Lagha-Boukbiza, M C Fleury, D Devys, G Nicolas, G Rudolf, M Bereau, M Mallaret, M Renaud, C Acquaviva, M Koenig, M Koob, S Kremer, I J Namer, C Cazeneuve, A Echaniz-Laguna, C Tranchant, Mathieu Anheim
The management of sporadic late-onset cerebellar ataxias represents a very heterogeneous group of patients and remains a challenge for neurologist in clinical practice. We aimed at describing the different causes of sporadic late-onset cerebellar ataxias that were diagnosed following standardized, exhaustive investigations and the population characteristics according to the aetiologies as well as at evaluating the relevance of these investigations. All patients consecutively referred to our centre due to sporadic, progressive cerebellar ataxia occurring after 40 years of age were included in the prospective, observational study...
June 2017: Journal of Neurology
https://www.readbyqxmd.com/read/26088035/clinico-pathological-correlations-of-the-frontal-lobe-syndrome-results-of-a-large-brain-bank-study
#18
Welmoed A Krudop, Sjanne Bosman, Jeroen J G Geurts, Sietske A M Sikkes, Nicolaas A Verwey, Max L Stek, Philip Scheltens, Annemieke J M Rozemuller, Yolande A L Pijnenburg
AIMS: A clinical frontal lobe syndrome (FLS) is generally attributed to functional or structural disturbances within frontal-subcortical circuits. We studied the distribution of pathological brain changes in FLS. Additionally, the prevalence of FLS among various disorders was studied. METHODS: We systematically screened clinical files of donors to the Netherlands Brain Bank (n = 2,814) for FLS. A total of 262 FLS cases were identified, and the distribution of postmortem pathological changes within the frontal-subcortical circuits was extracted from their neuropathological reports...
2015: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/26426392/behavioral-evolution-of-progressive-semantic-aphasia-in-comparison-with-nonfluent-aphasia
#19
COMPARATIVE STUDY
Estrella Gómez-Tortosa, Ricardo Rigual, Cristina Prieto-Jurczynska, Ignacio Mahillo-Fernández, Rosa Guerrero-López, Julián Pérez-Pérez, M José Sainz
BACKGROUND: Patients with primary progressive aphasia (PPA) usually develop significant behavioral disturbances with progression of the disease. We tested our clinical observation that development of disruptive agitation is more likely in semantic than in nonfluent PPA and examined which clinical variables could be associated with this behavior. METHODS: We retrospectively analyzed neuropsychiatric scores and the need for behavioral treatments in semantic PPA (n = 41) and nonfluent PPA (n = 39) cases and compared first (1-3 years since the onset of symptoms) and last (5-13 years since the onset) evaluations...
2016: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/26854827/survival-in-frontotemporal-dementia-phenotypes-a-meta-analysis
#20
REVIEW
Kalyani Kansal, Manisha Mareddy, Kelly L Sloane, Alexa A Minc, Peter V Rabins, John B McGready, Chiadi U Onyike
BACKGROUND: Survival in frontotemporal dementia (FTD) is not well understood. We conducted a mixed effects meta-analysis of survival in FTD to examine phenotype differences and contributory factors. METHODS: The PubMed, Medline, EMBASE, CINAHL, PsycINFO and Cochrane databases were searched for studies describing survival or natural history of behavioral variant FTD (bvFTD), progressive non-fluent aphasia (PNFA), semantic dementia (SD), FTD with amyotrophic lateral sclerosis (FTD-ALS), progressive supranuclear palsy and corticobasal degeneration...
2016: Dementia and Geriatric Cognitive Disorders
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