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https://www.readbyqxmd.com/read/28442216/trem2-microglia-and-neurodegenerative-diseases
#1
REVIEW
Felix L Yeh, David V Hansen, Morgan Sheng
Alzheimer's disease (AD) is the most common form of dementia and the 6th leading cause of death in the US. The neuropathological hallmarks of the disease are extracellular amyloid-β (Aβ) plaques and intraneuronal hyperphosphorylated tau aggregates. Genetic variants of TREM2 (triggering receptor expressed on myeloid cells 2), a cell-surface receptor expressed selectively in myeloid cells, greatly increase the risk of AD, implicating microglia and the innate immune system as pivotal factors in AD pathogenesis...
April 22, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28441276/augs-consensus-statement-association-of-anticholinergic-medication-use-and-cognition-in-women-with-overactive-bladder
#2
(no author information available yet)
Overactive bladder affects a significant portion of the overall population and has substantial impact on daily activities and quality-of-life. When considering treatment, behavioral therapies should be instituted first, followed by medical therapies. Anticholinergic medications and beta-3 agonists are often used as initial pharmacologic therapy, but caution should be taken in prescribing anticholinergic medications in frail or cognitively impaired patients. Recently, concerns have developed regarding anticholinergic medications and the associated risk of cognitive impairment, dementia, and Alzheimer disease in the general population...
May 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28436185/predictive-factors-for-dementia-and-cognitive-impairment-among-residents-living-in-the-veterans-retirement-communities-in-taiwan-implications-for-cognitive-health-promotion-activities
#3
Liang-Yu Chen, Yi-Hui Wu, Chung-Yu Huang, Li-Kuo Liu, An-Chun Hwang, Li-Ning Peng, Ming-Hsieh Lin, Liang-Kung Chen
AIM: To identify potentially modifiable risk factors for cognitive decline among veterans' home residents in Taiwan METHODS: The present retrospective cohort study was part of the Veteran Affairs-Comprehensive Geriatric Assessment study that retrieved data of the comprehensive geriatric assessment for 946 residents living at four veterans' homes in Taiwan. The study participants were interviewed every 3-6 months from January 2012 and December 2014. Demographic characteristics,multimorbidity by Charlson's Comorbidities Index, physical function by the Barthel Index, cognition by the Mini-Mental State Examination (MMSE), depression by the five-item Geriatric Depression Scale and nutritional status by the Mini-Nutrition Assessment-Short Form were collected for analysis...
April 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28435933/the-c677t-variant-in-mthfr-modulates-associations-between-brain-integrity-mood-and-cognitive-functioning-in-old-age
#4
Florence F Roussotte, Xue Hua, Katherine L Narr, Gary W Small, Paul M Thompson
INTRODUCTION: The C677T functional variant in the methylene-tetrahydrofolate reductase (MTHFR) gene leads to reduced enzymatic activity and elevated blood levels of homocysteine. Hyperhomocysteinemia has been linked with higher rates of cardiovascular diseases, cognitive decline, and late-life depression. METHODS AND MATERIALS: Here, 3D magnetic resonance imaging data was analyzed from 738 individuals (age: 75.5 ± 6.8 years; 438 men/300 women) including 173 Alzheimer's patients, 359 subjects with mild cognitive impairment, and 206 healthy older adults, scanned as part of the Alzheimer's Disease Neuroimaging Initiative (ADNI)...
April 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/28435163/progranulin-lysosomal-regulation-and-neurodegenerative-disease
#5
REVIEW
Aimee W Kao, Andrew McKay, Param Priya Singh, Anne Brunet, Eric J Huang
The discovery that heterozygous and homozygous mutations in the gene encoding progranulin are causally linked to frontotemporal dementia and lysosomal storage disease, respectively, reveals previously unrecognized roles of the progranulin protein in regulating lysosome biogenesis and function. Given the importance of lysosomes in cellular homeostasis, it is not surprising that progranulin deficiency has pleiotropic effects on neural circuit development and maintenance, stress response, innate immunity and ageing...
April 24, 2017: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/28431913/use-of-medications-of-questionable-benefit-during-the-last-year-of-life-of-older-adults-with-dementia
#6
Lucas Morin, Davide L Vetrano, Giulia Grande, Laura Fratiglioni, Johan Fastbom, Kristina Johnell
OBJECTIVES: To investigate the prevalence and factors associated with the use of medications of questionable benefit throughout the final year of life of older adults who died with dementia. DESIGN: Register-based, longitudinal cohort study. SETTING: Entire Sweden. PARTICIPANTS: All older adults (≥75 years) who died with dementia between 2007 and 2013 (n = 120,067). MEASUREMENTS: Exposure to medications of questionable benefit was calculated for each of the last 12 months before death, based on longitudinal data from the Swedish Prescribed Drug Register...
April 18, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28428907/palliative-care-in-huntington-disease-personal-reflections-and-a-review-of-the-literature
#7
REVIEW
Christopher G Tarolli, Amy M Chesire, Kevin M Biglan
BACKGROUND: Huntington disease is a fatal, autosomal dominant, neurodegenerative disorder manifest by the triad of a movement disorder, behavioral disturbances, and dementia. At present, no curative or disease modifying therapies exist for the condition and current treatments are symptomatic. Palliative care is an approach to care that focuses on symptom relief, patient and caregiver support, and end of life care. There is increasing evidence of the benefit of palliative care throughout the course of neurodegenerative conditions including Parkinson disease and amyotrophic lateral sclerosis...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28425906/the-canadian-dementia-challenge-ensuring-optimal-care-and-services-for-those-at-risk-or-with-dementia-throughout-the-country
#8
Howard H Feldman, Carole A Estabrooks
In the next 15 years, Canada is predicted to face a doubling in its population affected by dementia. By 2038, an estimated 1.1 million Canadians will be experiencing dementia, with unprecedented impact on social, economic and health landscapes. In September 2015, the Canadian Academy of Health Sciences convened a Forum, with the specific thematic goals of reviewing progress towards effective dementia treatment and prevention, improved systems of care, advanced living and built environments, and impactful technology developments...
April 20, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/28424797/magnetoencephalography-as-a-tool-in-psychiatric-research-current-status-and-perspective
#9
REVIEW
Peter J Uhlhaas, Peter Liddle, David E J Linden, Anna C Nobre, Krish D Singh, Joachim Gross
The application of neuroimaging to provide mechanistic insights into circuit dysfunctions in major psychiatric conditions and the development of biomarkers are core challenges in current psychiatric research. We propose that recent technological and analytic advances in magnetoencephalography (MEG), a technique that allows measurement of neuronal events directly and noninvasively with millisecond resolution, provides novel opportunities to address these fundamental questions. Because of its potential in delineating normal and abnormal brain dynamics, we propose that MEG provides a crucial tool to advance our understanding of pathophysiological mechanisms of major neuropsychiatric conditions, such as schizophrenia, autism spectrum disorders, and the dementias...
April 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/28424374/mechanisms-of-vascular-disease-in-dementia-what-does-industry-want-to-know
#10
EDITORIAL
Paul B Wren, Derek Hill, Andrew Lockhart
Despite recent advances in basic and clinical science, dementia remains an area of high unmet medical need. The role of cerebrovascular mechanisms in the pathogenesis and progression of cognitive and functional impairment in dementia is being revived. In order to facilitate the development of therapeutic approaches, it is critical that a number of fundamental elements are integrated into research strategies investigating cerebrovascular pathologies as these will maximize the opportunity of bringing medicines to patients in a timely manner...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28414578/the-impact-of-in-home-services-utilization-on-the-institutionalization-of-older-people-in-korea
#11
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/28413748/thiamine-assays-advances-challenges-and-caveats
#12
REVIEW
Katie A Edwards, Nicole Tu-Maung, Krystal Cheng, Binbin Wang, Antje J Baeumner, Clifford E Kraft
Thiamine (vitamin B1) is essential to the health of all living organisms and deficiency has long been associated with diseases in animals such as fish, birds, alligators, and domesticated ruminant mammals. Thiamine is also implicated in several human diseases including Alzheimer's, diabetes, dementia, depression and, most notably, Wernicke-Korsakoff syndrome and Beriberi disease. Yet, highly sensitive and specific detection of thiamine remains an analytical challenge, as pM to nm levels of thiamine need to be detected in environmental and human samples, respectively, various phosphorylated variants need to be discriminated, and rapid on-site detection would be highly desirable...
April 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28413625/hiv-associated-neurocognitive-disorders-recent-advances-in-pathogenesis-biomarkers-and-treatment
#13
REVIEW
Antonia Carroll, Bruce Brew
HIV-associated neurocognitive disorders (HAND) remain prevalent despite plasma viral suppression by antiretroviral agents. In fact, the prevalence of milder subtypes of cognitive impairment is increasing. Neuropsychologic testing remains the "gold standard" of diagnosis; however, this is time consuming and costly in a resource-poor environment. Recently developed screening tools, such as CogState and the revised HIV dementia scale, have very good sensitivity and specificity in the more severe stages of HAND...
2017: F1000Research
https://www.readbyqxmd.com/read/28410660/late-onset-alzheimer-disease
#14
REVIEW
Aimee L Pierce, Szofia S Bullain, Claudia H Kawas
The oldest-old represent the fastest growing segment of society, and the risk of developing dementia continues to increase with advancing age into the 9th and 10th decades of life. The most common form of dementia in the oldest-old is Alzheimer disease (AD), although there are often mixed pathologies contributing to dementia in addition to amyloid plaques and neurofibrillary tangles. Diagnosing AD in the oldest-old is challenging due to cognitive and physical changes associated with aging. Treatment remains supportive, with current approved medications able to provide modest symptomatic benefit but unable to slow the progression of disease...
May 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/28410658/the-role-of-neuroimaging-in-the-assessment-of-the-cognitively-impaired-elderly
#15
REVIEW
Sara Kollack-Walker, Collin Y Liu, Adam S Fleisher
This article reviews the current diagnostic tools that are available for structural, functional, and molecular imaging of the brain, summarizing some of the key findings that have been reported in individuals diagnosed with Alzheimer disease, mild cognitive impairment, prodromal AD, or other prevalent dementias. Given recent advances in the development of amyloid PET tracers, current guidelines for the use of amyloid PET imaging in patients with cognitive complaints are reviewed. In addition, data addressing the potential value of amyloid PET imaging in the clinical setting are highlighted...
May 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/28410657/assessment-of-the-hispanic-cognitively-impaired-elderly-patient
#16
REVIEW
Liliana Ramirez Gomez, Felipe A Jain, Lina M D'Orazio
Hispanics are the largest minority group in the United States, approximately 7% of the population older than 65. They often encounter challenges related to health care access and quality of care. The prevalence of dementia among Hispanics is higher than that of non-Hispanic whites and they frequently present at a more advanced stage of illness. Cognitive evaluation should take into account sociodemographic information and cultural factors to avoid misdiagnosis and guide management. A provider who has knowledge of Hispanic culture should conduct the neuropsychological assessment, and tests used to measure cognitive functioning should be developed for Hispanics in the United States...
May 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/28407800/advance-directives-and-power-of-attorney-for-health-care-in-the-oldest-old-results-of-the-agequalide-study
#17
Tobias Luck, Francisca S Rodriguez, Birgitt Wiese, Carolin van der Leeden, Kathrin Heser, Horst Bickel, Jürgen In der Schmitten, Hans-Helmut Koenig, Siegfried Weyerer, Silke Mamone, Tina Mallon, Michael Wagner, Dagmar Weeg, Angela Fuchs, Christian Brettschneider, Jochen Werle, Martin Scherer, Wolfgang Maier, Steffi G Riedel-Heller
BACKGROUND: Completion of advance directives (ADs) and power of attorney (POA) documents may protect a person's autonomy in future health care situations when the individual lacks decisional capacity. As such situations become naturally much more common in old age, we specifically aimed at providing information on (i) the frequency of ADs/POA in oldest-old individuals and (ii) factors associated with having completed ADs/POA. METHODS: We analyzed data of oldest-old primary care patients (85+ years; including community-dwelling and institutionalized individuals) within the German AgeQualiDe study...
April 13, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28404480/2d-and-3d-fish-of-expanded-repeat-rnas-in-human-lymphoblasts
#18
Martyna O Urbanek, Michał Michalak, Wlodzimierz J Krzyzosiak
The first methods for visualizing RNAs within cells were designed for simple imaging of specific transcripts in cells or tissues and since then significant technical advances have been made in this field. Today, high-resolution images can be obtained, enabling visualization of single transcript molecules, quantitative analyses of images, and precise localization of RNAs within cells as well as co-localization of transcripts with specific proteins or other molecules. In addition, tracking of RNA dynamics within single cell has become possible...
April 9, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28398367/-implantable-cardioverter-defibrillator-deactivation-at-the-end-of-life-ethical-clinical-and-communication-issues
#19
Massimo Romanò, Maria Antonella Piga, Roberta Bertona, Roberto Negro, Chiara Ruggeri, Federica Zorzoli, Rosvaldo Villani
The number of cardioverter-defibrillator implants is increasing worldwide, with the main indication being primary prevention of sudden cardiac death. During the follow-up, patients may die from progression of their underlying heart disease or from nonarrhythmic causes, such as malignancies, dementia and lung disease, without receiving appropriate shocks until the last few days or weeks of their life. These events occur roughly in 30% of patients, mainly in the last 24 hours before death. In this case, inappropriate and even appropriate shock deliveries can no longer prolong life and may simply lead to pain and reduced quality of life...
February 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28397097/blood-brain-barriers-in-obesity
#20
Elizabeth M Rhea, Therese S Salameh, Aric F Logsdon, Angela J Hanson, Michelle A Erickson, William A Banks
After decades of rapid increase, the rate of obesity in adults in the USA is beginning to slow and the rate of childhood obesity is stabilizing. Despite these improvements, the obesity epidemic continues to be a major health and financial burden. Obesity is associated with serious negative health outcomes such as cardiovascular disease, type II diabetes, and, more recently, cognitive decline and various neurodegenerative dementias such as Alzheimer's disease. In the past decade, major advancements have contributed to the understanding of the role of the central nervous system (CNS) in the development of obesity and how peripheral hormonal signals modulate CNS regulation of energy homeostasis...
April 10, 2017: AAPS Journal
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