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https://www.readbyqxmd.com/read/28655199/proteins-involved-in-endocytosis-are-upregulated-by-ageing-in-the-normal-human-brain-implications-for-the-development-of-alzheimer-s-disease
#1
Mouhamed Alsaqati, Rhian S Thomas, Emma J Kidd
The greatest risk factor for Alzheimer's disease (AD) is advanced age, but the reason for this association remains unclear. Amyloid-beta (Aβ) is produced from amyloid precursor protein (APP) primarily after APP is internalised by clathrin-mediated or clathrin-independent endocytosis. Changes in endocytosis in AD have been identified. We hypothesised that endocytic protein expression is altered during ageing, thus influencing the likelihood of developing AD by increasing Aβ production. We explored how levels of endocytic proteins, APP, its metabolites, secretase enzymes and tau varied with age in cortical brain samples from men of three age ranges (young (20-30), middle-aged (45-55) and old (70-90)) with no symptoms of dementia...
June 26, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28655133/the-effect-of-traumatic-brain-injury-history-with-loss-of-consciousness-on-rate-of-cognitive-decline-among-older-adults-with-normal-cognition-and-alzheimer-s-disease-dementia
#2
Yorghos Tripodis, Michael L Alosco, Nikolaos Zirogiannis, Brandon E Gavett, Christine Chaisson, Brett Martin, Michael D McClean, Jesse Mez, Neil Kowall, Robert A Stern
Traumatic brain injury (TBI) is thought to be a risk factor for dementia, including dementia due to Alzheimer's disease (AD). However, the influence of TBI history on the neuropsychological course of AD is unknown and, more broadly, the effect of TBI history on age-related cognitive change is poorly understood. We examined the relationship between history of TBI with loss of consciousness (LOC) history and cognitive change in participants with normal cognition and probable AD, stratified by APOEɛ4 allele status...
June 22, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28655059/association-of-autonomic-dysfunction-with-disease-progression-and-survival-in-parkinson-disease
#3
Eduardo De Pablo-Fernandez, Carmen Tur, Tamas Revesz, Andrew J Lees, Janice L Holton, Thomas T Warner
Importance: Evidence suggests that development of autonomic dysfunction (AutD) may negatively affect disease course and survival in patients with synucleinopathies. However, the few available studies on Parkinson disease (PD) have conflicting results, comprise a small number of patients, have short follow-up periods, and lack pathologic confirmation of the diagnosis. Objective: To examine the association of time of onset of AutD with disease progression and survival in PD...
June 26, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28653036/assessment-of-amyloid-%C3%AE-in-pathologically-confirmed-frontotemporal-dementia-syndromes
#4
Rachel H Tan, Jillian J Kril, Yue Yang, Nicole Tom, John R Hodges, Victor L Villemagne, Christopher C Rowe, Cristian E Leyton, John B J Kwok, Lars M Ittner, Glenda M Halliday
INTRODUCTION: The diagnostic utility of in vivo amyloid β (Aβ) imaging to aid in the clinical distinction between frontotemporal dementia (FTD) and Alzheimer's disease remains unclear without data on the prevalence and severity of Aβ in pathologically confirmed FTD syndromes. METHODS: Aβ was assessed in 98 autopsy-confirmed FTD and 36 control cases, and the pathological accuracy of (11)C-Pittsburgh compound B (PiB)-positron emission tomography imaging was assessed in a subset of FTD cases (n = 15)...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28653035/a-classification-algorithm-for-predicting-progression-from-normal-cognition-to-mild-cognitive-impairment-across-five-cohorts-the-preclinical-ad-consortium
#5
Alden L Gross, Jason J Hassenstab, Sterling C Johnson, Lindsay R Clark, Susan M Resnick, Melissa Kitner-Triolo, Colin L Masters, Paul Maruff, John C Morris, Anja Soldan, Corinne Pettigrew, Marilyn S Albert
INTRODUCTION: We established a method for diagnostic harmonization across multiple studies of preclinical Alzheimer's disease and validated the method by examining its relationship with clinical status and cognition. METHODS: Cognitive and clinical data were used from five studies (N = 1746). Consensus diagnoses established in each study used criteria to identify progressors from normal cognition to mild cognitive impairment. Correspondence was evaluated between these consensus diagnoses and three algorithmic classifications based on (1) objective cognitive impairment in 2+ tests only; (2) a Clinical Dementia Rating (CDR) of ≥0...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28653034/nutrients-required-for-phospholipid-synthesis-are-lower-in-blood-and-cerebrospinal-fluid-in-mild-cognitive-impairment-and-alzheimer-s-disease-dementia
#6
Nick van Wijk, Rosalinde E R Slot, Flora H Duits, Marieke Strik, Egbert Biesheuvel, John W C Sijben, Marinus A Blankenstein, Jörgen Bierau, Wiesje M van der Flier, Philip Scheltens, Charlotte E Teunissen
INTRODUCTION: Synaptic membrane formation depends on nutrients that fuel metabolic pathways for the synthesis of constituent phospholipids. Consequently, insufficient availability of such nutrients may restrict membrane formation and contribute to synaptic dysfunction in Alzheimer's disease (AD). We assessed whether blood and cerebrospinal fluid (CSF) concentrations of nutrients related to phospholipid synthesis differ among patients with AD, mild cognitive impairment (MCI), and control subjects...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28652965/a-protocol-for-manual-segmentation-of-medial-temporal-lobe-subregions-in-7%C3%A2-tesla-mri
#7
D Berron, P Vieweg, A Hochkeppler, J B Pluta, S-L Ding, A Maass, A Luther, L Xie, S R Das, D A Wolk, T Wolbers, P A Yushkevich, E Düzel, L E M Wisse
Recent advances in MRI and increasing knowledge on the characterization and anatomical variability of medial temporal lobe (MTL) anatomy have paved the way for more specific subdivisions of the MTL in humans. In addition, recent studies suggest that early changes in many neurodegenerative and neuropsychiatric diseases are better detected in smaller subregions of the MTL rather than with whole structure analyses. Here, we developed a new protocol using 7 Tesla (T) MRI incorporating novel anatomical findings for the manual segmentation of entorhinal cortex (ErC), perirhinal cortex (PrC; divided into area 35 and 36), parahippocampal cortex (PhC), and hippocampus; which includes the subfields subiculum (Sub), CA1, CA2, as well as CA3 and dentate gyrus (DG) which are separated by the endfolial pathway covering most of the long axis of the hippocampus...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28652634/-a-pilot-study-on-pain-assessment-among-elderly-with-severe-dementia-br-in-residential-aged-care-facilities-of-reggio-emilia-district
#8
Annalisa Bargellini, Stefano Mastrangelo, Monica Cervi, Michele Bagnasco, Jlenia Reghizzi, Sandra Coriani
. A pilot study on pain assessment among elderly with severe dementia in residential aged care facilities of Reggio Emilia district. INTRODUCTION: Despite the availability of pain assessment tools and best practice recommendations for the assessment and management of pain in people with severe dementia, pain in residential aged care facilities is still undetected or misinterpreted. OBJECTIVE: To assess pain prevalence and analgesic load medication in people with severe cognitive impairment admitted to residential aged care facilities of Reggio Emilia (Italy) province...
April 2017: Assistenza Infermieristica e Ricerca: AIR
https://www.readbyqxmd.com/read/28652376/protein-homeostasis-of-a-metastable-subproteome-associated-with-alzheimer-s-disease
#9
Rishika Kundra, Prajwal Ciryam, Richard I Morimoto, Christopher M Dobson, Michele Vendruscolo
Alzheimer's disease is the most common cause of dementia. A hallmark of this disease is the presence of aberrant deposits containing by the Aβ peptide (amyloid plaques) and the tau protein (neurofibrillary tangles) in the brains of affected individuals. Increasing evidence suggests that the formation of these deposits is closely associated with the age-related dysregulation of a large set of highly expressed and aggregation-prone proteins, which make up a metastable subproteome. To understand in more detail the origins of such dysregulation, we identify specific components of the protein homeostasis system associated with these metastable proteins by using a gene coexpression analysis...
June 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28652082/medical-care-activities-among-spouses-of-older-adults-with-functional-disability-implications-for-caregiving-difficulties-and-gains
#10
Courtney A Polenick, Amanda N Leggett, Helen C Kales
OBJECTIVES: Spouses of older adults with functional disability often provide help with their partner's medical care. Yet little is known about the implications of these activities for spouses' caregiving experiences. We examined how spouses' medical care activities are linked to both positive and negative aspects of caregiving (difficulties and gains), and whether these associations vary by their age, gender, or education. DESIGN: Retrospective analysis of data from the 2011 National Health and Aging Trends Study and National Study of Caregiving cross-sectional studies...
May 4, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28652059/burden-and-predictors-of-poststroke-cognitive-impairment-in-a-sample-of-ghanaian-stroke-survivors
#11
Fred Stephen Sarfo, John Akassi, Sheila Adamu, Vida Obese, Bruce Ovbiagele
BACKGROUND AND OBJECTIVE: There are limited data on vascular cognitive impairment (VCI) from low- and middle-income countries where the stroke burden is burgeoning. The aim of this study was to characterize the burden, determinants, and effects of VCI on health-related quality of life in sub-Saharan Africa (SSA). METHODS: From January 2015 to February 2016, we collected information on 147 consecutive stroke survivors (>45 years) seen at a tertiary hospital in Ghana and 49 demographically matched stroke-free controls...
June 23, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28651700/erythrocyte-omega-3-fatty-acids-are-inversely-associated-with-incident-dementia-secondary-analyses-of-longitudinal-data-from-the-women-s-health-initiative-memory-study-whims
#12
Eric M Ammann, James V Pottala, Jennifer G Robinson, Mark A Espeland, William S Harris
OBJECTIVE: To assess whether red blood cell (RBC) docosahexaenoic acid and eicosapentaenoic acid (DHA+EPA) levels have a protective association with the risk of dementia in older women. METHODS: RBC DHA+EPA levels were assessed at baseline, and cognitive status was evaluated annually in a cohort of 6706 women aged ≥65 years who participated in the Women's Health Initiative Memory Study (WHIMS). Cox regression was used to quantify the association between RBC DHA+EPA and the risk of probable dementia, independent of major dementia risk factors...
June 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28650972/contribution-of-cognitive-performance-and-cognitive-decline-to-associations-between-socioeconomic-factors-and-dementia-a-cohort-study
#13
Jennifer Rusmaully, Aline Dugravot, Jean-Paul Moatti, Michael G Marmot, Alexis Elbaz, Mika Kivimaki, Séverine Sabia, Archana Singh-Manoux
BACKGROUND: Socioeconomic disadvantage is a risk factor for dementia, but longitudinal studies suggest that it does not affect the rate of cognitive decline. Our objective is to understand the manner in which socioeconomic disadvantage shapes dementia risk by examining its associations with midlife cognitive performance and cognitive decline from midlife to old age, including cognitive decline trajectories in those with dementia. METHODS AND FINDINGS: Data are drawn from the Whitehall II study (N = 10,308 at study recruitment in 1985), with cognitive function assessed at 4 waves (1997, 2002, 2007, and 2012)...
June 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28650892/the-2017-hormone-therapy-position-statement-of-the-north-american-menopause-society
#14
(no author information available yet)
The 2017 Hormone Therapy Position Statement of The North American Menopause Society (NAMS) updates the 2012 Hormone Therapy Position Statement of The North American Menopause Society and identifies future research needs. An Advisory Panel of clinicians and researchers expert in the field of women's health and menopause was recruited by NAMS to review the 2012 Position Statement, evaluate new literature, assess the evidence, and reach consensus on recommendations, using the level of evidence to identify the strength of recommendations and the quality of the evidence...
June 22, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28650869/the-2017-hormone-therapy-position-statement-of-the-north-american-menopause-society
#15
(no author information available yet)
The 2017 Hormone Therapy Position Statement of The North American Menopause Society (NAMS) updates the 2012 Hormone Therapy Position Statement of The North American Menopause Society and identifies future research needs. An Advisory Panel of clinicians and researchers expert in the field of women's health and menopause was recruited by NAMS to review the 2012 Position Statement, evaluate new literature, assess the evidence, and reach consensus on recommendations, using the level of evidence to identify the strength of recommendations and the quality of the evidence...
July 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28650104/alzheimer-s-disease-and-metabolic-syndrome-a-link-from-oxidative-stress-and-inflammation-to-neurodegeneration
#16
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/28649609/insomnia-and-somnolence-in-idiopathic-rbd-a-prospective-cohort-study
#17
Ronald B Postuma, Jean-François Gagnon, Amelie Pelletier, Jacques Y Montplaisir
Although some sleep disorders are markers of prodromal Parkinson's disease and dementia with Lewy bodies, it is unclear whether insomnia and somnolence can predict disease. We assessed a large cohort of patients with idiopathic rapid eye movement sleep behavior disorder and age/sex matched controls, comparing the Epworth sleepiness scale, the Insomnia Severity Index, the Pittsburgh Sleep Quality Index, and polysomnographic variables. In those with repeated scales, we assessed change over time. Finally, we assessed whether sleep abnormalities predicted defined neurodegenerative disease...
2017: NPJ Parkinson's Disease
https://www.readbyqxmd.com/read/28649596/phenoconversion-from-probable-rapid-eye-movement-sleep-behavior-disorder-to-mild-cognitive-impairment-to-dementia-in-a-population-based-sample
#18
Youngsin Jung, Brendon P Boot, Michelle M Mielke, Tanis J Ferman, Yonas E Geda, Eric McDade, Teresa J H Christianson, David S Knopman, Erik K St Louis, Michael H Silber, Ronald C Petersen, Bradley F Boeve
INTRODUCTION: Rapid eye movement sleep behavior disorder (RBD) is strongly associated with synucleinopathies. In 2012, we reported an increased risk of mild cognitive impairment (MCI) and Parkinson disease (PD) in cognitively normal Olmsted County, Minnesota, residents, aged 70 to 89 years with probable RBD. Here, we examine their progression to dementia and other neurodegenerative phenotypes. METHODS: Fifteen participants with RBD who were diagnosed with either MCI or PD were longitudinally followed, and their subsequent clinical courses were reviewed...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28649100/-aging-and-homeostasis-sex-hormones-and-aging
#19
Keizo Ohnaka
The decline in sex hormones along with aging is suggested to be involved in age-associated diseases such as cardiovascular diseases, osteoporosis, and dementia. The decrease of estrogen level after menopause is related to osteoporosis in addition to climacteric disturbance in women, while that of testosterone to sarcopenia, osteoporosis and late-onset hypogonadism in men. New treatment strategy is expected for targeting age-associated diseases against the decreased level of sex hormones.
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28648971/persistence-with-antiepileptic-drugs-in-epilepsy-patients-treated-in-neurological-practices-in-germany
#20
Louis Jacob, Hajo M Hamer, Karel Kostev
OBJECTIVE: The goal of this study was to analyze the persistence with antiepileptic drugs (AED) and associated factors in patients followed in neurological practices in Germany. METHODS: This study included patients aged 18years or over who received two initial diagnoses of epilepsy and a first prescription of AED between 2007 and 2015 in a neurological practice (index date). The main outcome measure was the rate of AED persistence within five years of the index date...
June 22, 2017: Epilepsy & Behavior: E&B
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