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Dementia-related behaviors

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https://www.readbyqxmd.com/read/28089250/pathology-of-behavior-in-pd-what-is-known-and-what-is-not
#1
REVIEW
Kaylena A Ehgoetz Martens, Simon J G Lewis
Abnormal behavior in Parkinson's disease (PD) stems from a complex orchestration of impaired neural networks that result from PD-related neurodegeneration across multiple levels. Typically, cellular and tissue abnormalities generate neurochemical changes and disrupt specific regions of the brain, in turn creating impaired neural circuits and dysfunctional global networks. The objective of this chapter is to provide an overview of the array of pathological changes that have been linked to different behavioral symptoms of PD such as depression, anxiety, apathy, fatigue, impulse control disorders, psychosis, sleep disorders and dementia...
December 29, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28086964/anti-%C3%AE-synuclein-immunotherapy-reduces-%C3%AE-synuclein-propagation-in-the-axon-and-degeneration-in-a-combined-viral-vector-and-transgenic-model-of-synucleinopathy
#2
Brian Spencer, Elvira Valera, Edward Rockenstein, Cassia Overk, Michael Mante, Anthony Adame, Wagner Zago, Peter Seubert, Robin Barbour, Dale Schenk, Dora Games, Robert A Rissman, Eliezer Masliah
Neurodegenerative disorders such as Parkinson's Disease (PD), PD dementia (PDD) and Dementia with Lewy bodies (DLB) are characterized by progressive accumulation of α-synuclein (α-syn) in neurons. Recent studies have proposed that neuron-to-neuron propagation of α-syn plays a role in the pathogenesis of these disorders. We have previously shown that antibodies against the C-terminus of α-syn reduce the intra-neuronal accumulation of α-syn and related deficits in transgenic models of synucleinopathy, probably by abrogating the axonal transport and accumulation of α-syn in in vivo models...
January 13, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28077020/relationship-between-18-f-flutemetamol-uptake-and-rbans-performance-in-non-demented-community-dwelling-older-adults
#3
Dustin B Hammers, Taylor J Atkinson, Bonnie C A Dalley, Kayla R Suhrie, Britney E Beardmore, Lance D Burrell, Kevin P Horn, Kelli M Rasmussen, Norman L Foster, Kevin Duff, John M Hoffman
OBJECTIVE: The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) has been used extensively for clinical care and in research for patients with mild cognitive impairment and Alzheimer's disease (AD); however, relatively few studies have evaluated the relationship between RBANS performance and AD imaging biomarkers. The purpose of the current study was to evaluate the association between a relatively new amyloid positron emission tomography imaging biomarker and performance on the RBANS...
January 12, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28069458/loganin-enhances-long-term-potentiation-and-recovers-scopolamine-induced-learning-and-memory-impairments
#4
Eun-Sang Hwang, Hyun-Bum Kim, Seok Lee, Min-Ji Kim, Sung-Ok Lee, Seung-Moo Han, Sungho Maeng, Ji-Ho Park
Although the incidence rate of dementia is rapidly growing in the aged population, therapeutic and preventive reagents are still suboptimal. Various model systems are used for the development of such reagents in which scopolamine is one of the favorable pharmacological tools widely applied. Loganin is a major iridoid glycoside obtained from Corni fructus (Cornusofficinaliset Zucc) and demonstrated to have anti-inflammatory, anti-tumor and osteoporosis prevention effects. It has also been found to attenuate Aβ-induced inflammatory reactions and ameliorate memory deficits induced by scopolamine...
January 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28060449/therapeutic-effects-of-drug-switching-between-acetylcholinesterase-inhibitors-in-patients-with-alzheimer-s-disease
#5
Yasuyuki Ohta, Mohamed Darwish, Nozomi Hishikawa, Toru Yamashita, Kota Sato, Mami Takemoto, Koji Abe
AIM: To evaluate the therapeutic effects of switching from one acetylcholinesterase inhibitor (ChEI), donepezil, galantamine or rivastigmine, to another in Alzheimer's disease patients. METHODS: We retrospectively enrolled 171 Alzheimer's disease patients, whose ChEI medication was changed. The patients were evaluated on three major aspects of dementia - cognitive, affective and activities of daily living (ADL) measures - at 6 months (M) before the drug switch, at the time of drug switch (baseline), and at 3 M and 6 M after the drug switch...
January 6, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28060438/alcohol-and-tobacco-consumption-concordance-and-its-correlates-in-older-couples-in-latin-america
#6
Mayra Pires Alves Machado, Davi Camara Opaleye, Tiago Veiga Pereira, Ivan Padilla, Ana Regina Noto, Martin Prince, Cleusa Pinheiro Ferri
AIM: As little is known about alcohol and tobacco consumption concordance between older spouses in low- and middle-income countries, the present study aimed to estimate this in older couples from five Latin American countries. METHODS: This study is a secondary analysis of data collected between 2003 and 2007 by the 10/66 Dementia Research Group, from 1451 couples aged over 65 years from Cuba, the Dominican Republic, Peru, Mexico and Puerto Rico. Kappa statistic was used to assess the agreement of the behavior beyond chance, and logistic regression models with meta-analyses were used to estimate the factors associated with concordance...
January 6, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28059047/the-elusive-nature-of-apoe-%C3%AE%C2%B54-in-mid-adulthood-understanding-the-cognitive-profile
#7
Claire Lancaster, Naji Tabet, Jennifer Rusted
OBJECTIVES: The apolipoprotein E (APOE) ε4 allele is an established risk factor for dementia, yet this genetic variant is associated with a mixed cognitive profile across the lifespan. This study undertakes both a systematic and meta-analytic review of research investigating APOE-related differences in cognition in mid-adulthood, when detrimental effects of the allele may first be detectable. METHODS: Thirty-six papers investigating the behavioral effects of APOE ε4 in mid-adulthood (defined as a mean sample age between 35 and 60 years) were reviewed...
January 6, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28054821/multimodal-emotion-processing-deficits-are-present-in-amyotrophic-lateral-sclerosis
#8
Sophie C Andrews, Mathew Staios, Jim Howe, Katrina Reardon, Fiona Fisher
OBJECTIVE: Emotion processing abilities might be reduced in amyotrophic lateral sclerosis (ALS). Previous studies of emotion processing in ALS have inconsistent results, and are limited by variations in task difficulty, modalities examined, and participants' cognitive status. The current study used a battery of emotion processing tasks at differing levels of difficulty and across different modalities (facial affect and voice prosody) to assess the extent of emotion processing deficits in nondemented ALS...
January 5, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28035933/frontal-lobe-function-correlates-with%C3%A2-one-year-incidence-of-urinary-incontinence-in-elderly-with-alzheimer-disease
#9
Taiki Sugimoto, Masaki Yoshida, Rei Ono, Shunsuke Murata, Naoki Saji, Shumpei Niida, Kenji Toba, Takashi Sakurai
BACKGROUND: Urinary incontinence (UI) is frequently observed in patients with Alzheimer's disease (AD). Although previous works highlight the association between frontal lobe-related function and UI, causal relationship is unclear. OBJECTS: To clarify the longitudinal association between frontal lobe function and the incidence of UI at 1 year in patients with AD. METHODS: The subjects were 215 continent AD patients who attended the Memory Clinic of the National Center for Geriatrics and Gerontology of Japan during the period from March 2011 to December 2014...
December 30, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28012089/orexin-and-alzheimer-s-disease
#10
Claudio Liguori
Alzheimer's disease (AD) is the most frequent age-related dementia. It prevalently causes cognitive decline, although it is frequently associated with secondary behavioral disturbances. AD neurodegeneration characteristically produces a remarkable destruction of the sleep-wake cycle, with diurnal napping, nighttime arousals, sleep fragmentation, and REM sleep impairment. It was recently hypothesized that the orexinergic system was involved in AD pathology. Accordingly, recent papers showed the association between orexinergic neurotransmission dysfunction, sleep impairment, and cognitive decline in AD...
December 24, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28009676/effectiveness-of-meaningful-occupation-interventions-for-people-living-with-dementia-in-residential-aged-care-a-systematic-review
#11
Catherine Travers, Deborah Brooks, Sonia Hines, Maria O'Reilly, Mitchell McMaster, Wei He, Margaret MacAndrew, Elaine Fielding, Lina Karlsson, Elizabeth Beattie
BACKGROUND: The ability to participate in valued activities, whether for work, leisure or family, is an important aspect of personal identity. In dementia, progressive memory loss means that abilities developed over a lifetime begin to be lost as well, contributing to the loss of self and identity. Some studies have reported that activities or interventions tailored to be meaningful to the person with dementia (defined as any activity important to the individual) are more effective in addressing behavioral and psychological symptoms of dementia (BPSD) and improving quality of life (QoL) than those that are not so tailored...
December 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27986794/characteristics-of-activities-for-persons-with-dementia-at-the-mild-moderate-and-severe-stages
#12
Natalie G Regier, Nancy A Hodgson, Laura N Gitlin
PURPOSE: To understand activity in dementia care, we examine relationships of disease stage with types and characteristics of meaningful activities (cueing needs, help with initiation, and recommended engagement time) provided in a home-based intervention trial designed to reduce behavioral symptoms. DESIGN AND METHODS: Data involved 158 activity prescriptions or written documents detailing prescribed activities, cueing needs, and engagement goals designed by occupational therapists for 56 families...
December 16, 2016: Gerontologist
https://www.readbyqxmd.com/read/27983551/benefits-of-occupational-therapy-in-dementia-patients-findings-from-a-real-world-observational-study
#13
Clément Pimouguet, Mléanie Le Goff, Jérôme Wittwer, Jean-François Dartigues, Catherine Helmer
BACKGROUND: There is a growing interest in developing non-pharmacological approaches in dementia. Clinical efficacy occupational therapy (OT) under routine care conditions has not been investigated yet. OBJECTIVE: To analyze the short-term effects of OT in patients with dementia; and to identify factors related to greater benefit. METHODS: Patients referred to OT were evaluated before starting a 3-month intervention and at 3 and 6 months later...
December 9, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27940352/gray-matter-network-differences-between-behavioral-variant-frontotemporal-dementia-and-alzheimer-s-disease
#14
E G B Vijverberg, B M Tijms, J Dopp, Y J Hong, C E Teunissen, F Barkhof, P Scheltens, Y A L Pijnenburg
We set out to study whether single-subject gray matter (GM) networks show disturbances that are specific for Alzheimer's disease (AD; n = 90) or behavioral variant frontotemporal dementia (bvFTD; n = 59), and whether such disturbances would be related to cognitive deficits measured with mini-mental state examination and a neuropsychological battery, using subjective cognitive decline subjects as reference. AD and bvFTD patients had a lower degree, connectivity density, clustering, path length, betweenness centrality, and small world values compared with subjective cognitive decline...
February 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/27932977/human-neural-stem-cell-transplantation-rescues-cognitive-defects-in-app-ps1-model-of-alzheimer-s-disease-by-enhancing-neuronal-connectivity-and-metabolic-activity
#15
Xueyuan Li, Hua Zhu, Xicai Sun, Fuxing Zuo, Jianfeng Lei, Zhanjing Wang, Xinjie Bao, Renzhi Wang
Alzheimer's disease (AD), the most frequent type of dementia, is featured by Aβ pathology, neural degeneration and cognitive decline. To date, there is no cure for this disease. Neural stem cell (NSC) transplantation provides new promise for treating AD. Many studies report that intra-hippocampal transplantation of murine NSCs improved cognition in rodents with AD by alleviating neurodegeneration via neuronal complement or replacement. However, few reports examined the potential of human NSC transplantation for AD...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27931245/brain-activation-in-frontotemporal-and-alzheimer-s-dementia-a-functional-near-infrared-spectroscopy-study
#16
Florian G Metzger, Betti Schopp, Florian B Haeussinger, Katja Dehnen, Matthis Synofzik, Andreas J Fallgatter, Ann-Christine Ehlis
BACKGROUND: Frontotemporal dementia is an increasingly studied disease, the underlying functional impairments on a neurobiological level of which have not been fully understood. Patients with the behavioral-subtype frontotemporal dementia (bvFTD) are particularly challenging for clinical measurements such as functional imaging due to their behavioral symptoms. Here, an alternative imaging method, functional near-infrared spectroscopy (fNIRS), is introduced to measure task-related cortical brain activation based on blood oxygenation...
December 8, 2016: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/27927937/brain-activation-in-high-functioning-older-adults-and-falls-prospective-cohort-study
#17
Joe Verghese, Cuiling Wang, Emmeline Ayers, Meltem Izzetoglu, Roee Holtzer
OBJECTIVE: To determine whether brain activity over the prefrontal cortex measured in real time during walking predicts falls in high-functioning older adults. METHOD: We examined166 older persons (mean age 75 years, 51% women) enrolled in a prospective aging study. High-functioning status defined as the absence of dementia or disability with normal gait diagnosed by study clinicians. The magnitude of task-related changes in oxygenated hemoglobin levels over the prefrontal cortex was measured with functional near-infrared spectroscopy during motor (walking at normal pace) and cognitive (reciting alternate letters of the alphabet) single tasks and a dual-task condition (walking while reciting alternate letters of the alphabet)...
January 10, 2017: Neurology
https://www.readbyqxmd.com/read/27927732/trauma-informed-hospice-and-palliative-care
#18
Barbara L Ganzel
This review highlights the need to integrate trauma-informed practices into hospice and palliative care. The pervasiveness of psychological trauma exposure has been established in the general population and among the elderly adults. Moreover, there is emerging evidence for multiple additional opportunities for exposure to psychological trauma at or near the end of life. For example, many people experience intensive medical interventions prior to their admission to hospice and/or palliative care, and there is increasing recognition that these interventions may be traumatic...
December 7, 2016: Gerontologist
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
#19
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...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27904027/retinal-vascular-changes-and-prospective-risk-of-disabling-dementia-the-circulatory-risk-in-communities-study-circs
#20
Hiroshige Jinnouchi, Akihiko Kitamura, Kazumasa Yamagishi, Masahiko Kiyama, Hironori Imano, Takeo Okada, Renzhe Cui, Mitsumasa Umesawa, Isao Muraki, Mina Hayama-Terada, Ryo Kawasaki, Tomoko Sankai, Tetsuya Ohira, Hiroyasu Iso
AIM: To investigate the association of retinal vascular changes with a risk of dementia in longitudinal population-based study. METHODS: We performed a nested case-control study of 3,718 persons, aged 40-89 years, enrolled between 1983 and 2004. Retinal vascular changes were observed in 351 cases with disabling dementia (average period before the onset, 11.2 years) and in 702 controls matched for sex, age, and baseline year. Incidence of disabling dementia was defined as individuals who received cares for disabilities including dementia-related symptoms and/or behavioral disturbance...
December 1, 2016: Journal of Atherosclerosis and Thrombosis
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