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https://www.readbyqxmd.com/read/28107119/olfaction-new-understandings-diagnostic-applications
#1
Gabrielle F Ruggiero, Jeannette Y Wick
Estimates indicate that 14 million Americans have olfactory dysfunction. As with other senses, such as sight and hearing, olfaction frequently declines with age. Impaired olfaction can be a warning sign of Parkinson's disease, sometimes occurring before motor symptoms develop. It's also an initial symptom of Alzheimer's dementia (AD); the amyloid plaques and tangles characterizing AD invade the olfactory bulb and hippocampus early in its course, hampering odor identification. Olfactory dysfunction is associated with some serious problems, including inability to smell warning odors (fire, gas) and impaired ability to taste food...
November 1, 2016: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/28106561/the-modified-frontal-behavioral-inventory-fbi-mod-for-patients-with-frontotemporal-lobar-degeneration-alzheimer-s-disease-and-mild-cognitive-impairment
#2
Noora-Maria Suhonen, Ilona Hallikainen, Tuomo Hänninen, Jari Jokelainen, Johanna Krüger, Anette Hall, Maria Pikkarainen, Hilkka Soininen, Anne M Remes
While behavioral symptoms are both early and prevalent features of behavioral variant frontotemporal dementia (bvFTD), they can be present in other types of dementia as well, including Alzheimer's disease (AD) and even mild cognitive impairment (MCI). The Frontal Behavioral Inventory (FBI) was specifically developed to capture the behavioral and personality changes in bvFTD; it has also been modified into a self-administered caregiver questionnaire (FBI-mod). We examined the utility of the FBI-mod in differentiating bvFTD (n = 26), primary progressive aphasia (PPA) (n = 7), AD (n = 53), and MCI (n = 50) patients, and investigated how the FBI-mod may be associated with neuropsychological measures...
January 20, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28106555/optical-coherence-tomography-reveals-retinal-neuroaxonal-thinning-in-frontotemporal-dementia-as-in-alzheimer-s-disease
#3
Laura Ferrari, Su-Chun Huang, Giuseppe Magnani, Alessandro Ambrosi, Giancarlo Comi, Letizia Leocani
BACKGROUND: Alzheimer's disease (AD) and frontotemporal dementia (FTD) are leading causes of cognitive decline. Optical coherence tomography (OCT) allows the measurement of thickness of retinal neuroaxonal layers. While in AD and mild cognitive impairment (MCI), retinal nerve fiber layer (RNFL) thinning is frequently reported, less information is available on ganglion cell layer-inner plexiform layer (GCL-IPL). Data on FTD are lacking. OBJECTIVE: To obtain cross-sectional information on RNFL and GCL-IPL thickness among MCI, AD, FTD, and healthy controls (HC), and their correlations with dementia severity...
January 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28106548/does-the-female-advantage-in-verbal-memory-contribute-to-underestimating-alzheimer-s-disease-pathology-in-women-versus-men
#4
Erin E Sundermann, Anat Biegon, Leah H Rubin, Richard B Lipton, Susan Landau, Pauline M Maki
There is a growing recognition of sex differences in Alzheimer's disease (AD). Females show an advantage over males on tests of verbal memory, which are used to diagnose AD and its precursor, amnestic mild cognitive impairment (aMCI). Women retain this advantage in aMCI despite reduced hippocampal volume and temporal lobe glucose metabolism. Here we examined whether this female advantage endures despite evidence of AD-specific pathology, cortical amyloid-β (Aβ) deposition measured with [18F]AV45 (florbetapir) positron emission tomography...
January 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28105850/next-generation-tau-models-in-alzheimer-s%C3%A2-disease-research-virus-based-gene-delivery-systems
#5
V Cubinková, B Valachová, V Brezovaková, R Szabó, I Zimová, Z Kostecká, S Jadhav
Alzheimer's disease (AD) the most common form of dementia is characterized by cognitive decline and progressive loss of neurons in the central nervous system. Despite huge scientific progress, there are only few animal models that recapitulate at least majority of the AD pathology and related symptomatology. Therefore, alternative methods to develop animal models for neurodegenerative diseases are constantly explored. Recently, recombinant adeno-associated viruses (AAVs) are widely used viral vectors in development of novel models for neurodegenerative diseases...
January 19, 2017: Acta Virologica
https://www.readbyqxmd.com/read/28103749/clinical-practice-with-anti-dementia-drugs-a-revised-third-consensus-statement-from-the-british-association-for-psychopharmacology
#6
John T O'Brien, Clive Holmes, Matthew Jones, Roy Jones, Gill Livingston, Ian McKeith, Peter Mittler, Peter Passmore, Craig Ritchie, Louise Robinson, Elizabeth L Sampson, John-Paul Taylor, Alan Thomas, Alistair Burns
The British Association for Psychopharmacology coordinated a meeting of experts to review and revise its previous 2011 guidelines for clinical practice with anti-dementia drugs. As before, levels of evidence were rated using accepted standards which were then translated into grades of recommendation A-D, with A having the strongest evidence base (from randomised controlled trials) and D the weakest (case studies or expert opinion). Current clinical diagnostic criteria for dementia have sufficient accuracy to be applied in clinical practice (B) and both structural (computed tomography and magnetic resonance imaging) and functional (positron emission tomography and single photon emission computerised tomography) brain imaging can improve diagnostic accuracy in particular situations (B)...
December 1, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28103593/executive-dysfunction-and-behavioral-symptoms-are-associated-with-deficits-in-instrumental-activities-of-daily-living-in-frontotemporal-dementia
#7
Negar Moheb, Mario F Mendez, Sarah A Kremen, Edmond Teng
BACKGROUND: Deficits in instrumental activities of daily living (ADLs) may be more prominent in behavioral variant frontotemporal dementia (bvFTD) than in nonfluent/agrammatic variant primary progressive aphasia (nfvPPA) or semantic variant primary progressive aphasia (svPPA). It is uncertain whether frontotemporal dementia (FTD) subgroups exhibit different patterns and/or predictors of functional impairment. METHODS: We examined data from participants diagnosed with bvFTD (n = 607), svPPA (n = 132), and nfvPPA (n = 155) who were included in the National Alzheimer's Coordinating Center (NACC) Uniform Data Set (UDS) and assessed with the Functional Activities Questionnaire (FAQ)...
January 20, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28103467/-investigation-of-genetic-etiology-in-neurodegenerative-dementias-recommendations-from-the-centro-hospitalar-s%C3%A3-o-jo%C3%A3-o-neurogenetics-group
#8
João Massano, Miguel Leão, Carolina Garrett
In the past few years several gene mutations have been identified as causative of the most frequent neurodegenerative dementias (Alzheimer disease and frontotemporal dementia). These advances, along with the complex phenotype-genotype relationships and the costs associated with genetic testing, have often made it difficult for clinicians to decide with regard to a rational plan for the investigation of the genetic etiology of the degenerative dementias. The Centro Hospitalar São João Neurogenetics Group, a multidisciplinary team of Neurologists and Geneticists with special interest in neurogenetic disorders, devised consensus recommendations for the investigation of the genetic etiology of Alzheimer disease and frontotemporal dementia in clinical practice, based on international consensus documents (currently containing partly outdated information) and published scientific evidence on this topic...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28102934/crosstalk-between-angiotensin-and-the-non-amyloidogenic-pathway-of-alzheimer-s-amyloid-precursor-protein
#9
Anna Maria Kanarek, Annika Wagner, Jim Küppers, Michael Gütschow, Rolf Postina, Elzbieta Kojro
The association between hypertension and an increased risk for Alzheimer's disease (AD) and dementia is well established. Many data suggest that modulation of the renin-angiotensin system may be meaningful for the prevention and therapy of neurodegenerative disorders, in particular AD. Proteolytic cleavage of the amyloid precursor protein (APP) by α-secretase precludes formation of neurotoxic Aβ peptides and is expected to counteract the development of AD. An established approach for the up-regulation of α-secretase cleavage is activation of G protein-coupled receptors (GPCRs)...
January 19, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28102083/development-and-characterization-of-morin-hydrate-loaded-microemulsion-for-the-management-of-alzheimer-s-disease
#10
Dheeraj Sharma, Manpreet Singh, Punnet Kumar, Vir Vikram, Neeraj Mishra
The aim of this study is to prepare and characterize intranasal delivery of morin hydrate loaded microemulsion for the management of Alzheimer's diseases. After intranasal delivery, brain and blood drug concentrations were found to be higher for optimized morin hydrate loaded microemulsion as compared to plain morin hydrate. Significant (P < 0.05) reduction in assessed pharmacodynamic parameters was observed after intranasal administration of morin hydrate loaded microemulsion as compared to sham control group...
January 19, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28101460/captopril-and-valsartan-may-improve-cognitive-function-through-potentiation-of-the-brain-antioxidant-defense-system-and-attenuation-of-oxidative-nitrosative-damage-in-stz-induced-dementia-in-rat
#11
Yasaman Arjmand Abbassi, Mohammad Taghi Mohammadi, Mahsa Sarami Foroshani, Javad Raouf Sarshoori
Purpose: Previous findings have shown the crucial roles of brain renin-angiotensin system (RAS) in pathogenesis of Alzheimer's disease (AD). Since RAS inhibitors may have beneficial effects on dementia and cognitive function in elderly people, the aim of present study was to examine the neuroprotective actions of captopril and valsartan on memory function and neuronal damage in experimental model of AD. Methods: Adult forty male Wistar rats (220-280g) were randomly divided into 5 groups; Control, Vehicle, Alzheimer and treatment groups...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28101102/brain-derived-neurotrophic-factor-serum-levels-and-hippocampal-volume-in-mild-cognitive-impairment-and-dementia-due-to-alzheimer-disease
#12
Ericksen Mielle Borba, Juliana Avila Duarte, Giovana Bristot, Ellen Scotton, Ana Luiza Camozzato, Márcia Lorena Fagundes Chaves
BACKGROUND/AIMS: Hippocampal atrophy is a recognized biomarker of Alzheimer disease (AD) pathology. Serum brain-derived neurotrophic factor (BDNF) reduction has been associated with neurodegeneration. We aimed to evaluate BDNF serum levels and hippocampal volume in clinical AD (dementia and mild cognitive impairment [MCI]). METHODS: Participants were 10 patients with MCI and 13 with dementia due to AD as well as 10 healthy controls. BDNF serum levels were determined by ELISA and volumetric measures with NeuroQuant®...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/28100644/multicellular-hypothesis-for-the-pathogenesis-of-alzheimer-s-disease
#13
Edward J Goetzl, Bruce L Miller
Extensive abnormal interactions among microglia, astrocytes, and neurons of the CNS have been observed in proteinopathic neurodegenerative dementias of the elderly. These multicellular interactions are initiated by insoluble tangles of phosphorylated tau protein and plaques of amyloid peptides. Most research has focused on these neurotoxic proteins, but much less is known about the pathogenic roles of the responding resident and recruited neural cells. Principal interactions among the major 3 sets of CNS cells are herein considered at several levels in relation to cellular phenotypic alterations, mechanisms of cellular communication, and extent of involvement in the pathogenesis of Alzheimer's disease and related proteinopathic dementias...
January 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28100075/urinary-incontinence-in-alzheimer-s-disease
#14
Hsiang-Ying Lee, Ching-Chia Li, Yung-Shun Juan, Yu-Han Chang, Hsin-Chih Yeh, Chia-Chun Tsai, Kuang-Shun Chueh, Wen-Jeng Wu, Yuan-Han Yang
OBJECTIVES: Urinary incontinence (UI) is more prevalent in the elderly populations with dementia than without dementia, and Alzheimer's disease (AD) is the most common cause of dementia. Urinary incontinence may complicate AD morbidity and mortality. Therefore, this study aimed to evaluate the prevalence and annual incidence and determine the risk possibility of UI, which is the main type of incontinence in patients with AD in Taiwan. METHODS: A total of 933 patients with AD were included in the study cohort, and a total of 2799 patients without AD by 1:3 proportion compared to the study cohort were used as a matched cohort...
February 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28099631/associations-of-cerebrovascular-metabolism-genotypes-with-neuropsychiatric-symptoms-and-age-at-onset-of-alzheimer-s-disease-dementia
#15
Fabricio F de Oliveira, Elizabeth S Chen, Marilia C Smith, Paulo H Bertolucci
Objective: To study associations of cerebrovascular metabolism genotypes and haplotypes with age at Alzheimer's disease dementia (AD) onset and with neuropsychiatric symptoms according to each dementia stage. Methods: Consecutive outpatients with late-onset AD were assessed for age at dementia onset and Neuropsychiatric Inventory scores according to Clinical Dementia Rating scores, apolipoprotein E gene (APOE) haplotypes, angiotensin-converting enzyme gene (ACE) variants rs1800764 and rs4291, low-density lipoprotein cholesterol receptor gene (LDLR) variants rs11669576 and rs5930, cholesteryl ester transfer protein gene (CETP) variants I422V and TaqIB, and liver X receptor beta gene (NR1H2) polymorphism rs2695121...
January 12, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28099561/macarthur-competence-assessment-tool-for-treatment-in-alzheimer-disease-cross-cultural-adaptation
#16
Raquel Luiza Santos, Maria Fernanda Barroso de Sousa, José Pedro Simões, Elodie Bertrand, Daniel C Mograbi, Jesus Landeira-Fernandez, Jerson Laks, Marcia Cristina Nascimento Dourado
Objective: We adapted the MacArthur Competence Assessment Tool for Treatment (MacCAT-T) to Brazilian Portuguese, pilot testing it on mild and moderate patients with Alzheimer's disease (AD). Methods: The cross-cultural process required six steps. Sixty-six patients with AD were assessed for competence to consent to treatment, global cognition, working memory, awareness of disease, functionality, depressive symptoms and dementia severity. Results: The items had semantic, idiomatic, conceptual and experiential equivalence...
January 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28099102/interaction-of-vascular-damage-and-alzheimer-dementia-focal-damage-and-disconnection
#17
Sven Haller, Frederik Barkhof
No abstract text is available yet for this article.
February 2017: Radiology
https://www.readbyqxmd.com/read/28099083/update-on-alzheimer-s-disease-therapy-and-prevention-strategies
#18
W Vallen Graham, Alessandra Bonito-Oliva, Thomas P Sakmar
Alzheimer's disease (AD) is the primary cause of age-related dementia. Effective strategies to prevent and treat AD remain elusive despite major efforts to understand its basic biology and clinical pathophysiology. Significant investments in therapeutic drug discovery programs over the past two decades have yielded some important insights but no blockbuster drugs to alter the course of disease. Because significant memory loss and cognitive decline are associated with neuron death and loss of gray matter, especially in the frontal cortex and hippocampus, some focus in drug development has shifted to early prevention of cellular pathology...
January 14, 2017: Annual Review of Medicine
https://www.readbyqxmd.com/read/28098514/edible-and-medicinal-mushrooms-emerging-brain-food-for-the-mitigation-of-neurodegenerative-diseases
#19
Chia-Wei Phan, Pamela David, Vikineswary Sabaratnam
There is an exponential increase in dementia in old age at a global level because of increasing life expectancy. The prevalence of neurodegenerative diseases such as dementia and Alzheimer's disease (AD) will continue to rise steadily, and is expected to reach 42 million cases worldwide in 2020. Despite the advancement of medication, the management of these diseases remains largely ineffective. Therefore, it is vital to explore novel nature-based nutraceuticals to mitigate AD and other age-related neurodegenerative disorders...
January 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28098452/a-perspective-on-crocus-sativus-l-saffron-constituent-corcin-a-potent-water-soluble-antioxidant-and-potential-therapy-for-alzheimer-s-disease
#20
John W Finley, Song Gao
Alzheimer's Disease (AD) is the most common form of dementia in which the death of brain cells causes memory loss and cognitive decline. Several factors are thought to play roles in the development and course of AD. Existing medical therapies only alleviate and delay cognitive symptoms. Current research has been focused on developing antibodies to remove the targets of β-amyloid (Aβ) and tau protein. This approach has achieved removal of A, however, no long term success to AD patients reported. The biological properties of saffron, the dry stigma of the plant Crocus sativus L...
January 18, 2017: Journal of Agricultural and Food Chemistry
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