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https://www.readbyqxmd.com/read/28632523/frontotemporal-dementia-presenting-as-gambling-disorder-when-a-psychiatric-condition-is-the-clue-to-a-neurodegenerative-disease
#1
Giacomo Tondo, Fabiola De Marchi, Emanuela Terazzi, Marta Sacchetti, Roberto Cantello
Behavioral variant frontotemporal dementia, the most common form of frontotemporal dementia, is characterized by executive dysfunction and changes in personality and behavior, sometimes with associated psychiatric disorders. We report a man who suddenly developed a gambling disorder when he was 55 years old. A year later he developed personality changes of agitation, euphoria, and disinhibition, along with binge eating and dysthymia. He did not improve on paroxetine 40 mg/day. Two years after the onset of his symptoms, he came to our clinic for evaluation...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28632037/construct-and-concurrent-validity-of-the-cambridge-neuropsychological-automated-tests-in-portuguese-older-adults-without-neuropsychiatric-diagnoses-and-with-alzheimer-s-disease-dementia
#2
Marta Matos Gonçalves, Maria Salomé Pinho, Mário R Simões
We aimed to analyze the construct and concurrent validity of the Rapid Visual Information Processing (RVP), Paired Associates Learning (PAL), Reaction Time (RTI), and Spatial Working Memory (SWM) tests from the Cambridge Neuropsychological Test Automated Battery (CANTAB®). Inclusion criteria were checked in a first session. The CANTAB and additional pencil-and-paper tests were administered within 1 week. The participants (aged 69-96 years) were 137 Portuguese adults without neuropsychiatric diagnoses and 37 adults with mild-to-moderate Alzheimer's disease dementia...
February 28, 2017: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/28631992/validity-of-a-verbal-incidental-learning-measure-from-the-wais-iv-in-older-adults
#3
Dustin B Hammers, Amanda M Kucera, Stephanie J Card, Kathryn A Tolle, Taylor J Atkinson, Kevin Duff, Robert J Spencer
Incidental memory may reflect a form of learning in everyday life, although it is not consistently evaluated during standard neuropsychological evaluations. Further validation of a recently created measure of verbal Incidental Learning (IL) from the Wechsler Adult Intelligence Scale-IV is necessary to understand the utility of such a measure in clinical settings. Sixty-eight adults aged 50 to 89 were recruited from a Cognitive Disorders Clinic while receiving a standard neuropsychological assessment, along with two additional measures of IL...
March 2, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28631988/evidence-of-practice-effect-in-cantab-spatial-working-memory-test-in-a-cohort-of-patients-with-mild-cognitive-impairment
#4
Federica Cacciamani, Nicola Salvadori, Paolo Eusebi, Viviana Lisetti, Elisa Luchetti, Paolo Calabresi, Lucilla Parnetti
The Cambridge Neuropsychological Test Automated Battery (CANTAB) is a system of neuropsychological tests frequently used to track the progression of cognitive deficits in mild cognitive impairment (MCI) and Alzheimer's disease (AD). We investigated test-retest reliability in seven CANTAB tests. Twenty-five MCI patients, with either AD-like or conflicting/normal cerebrospinal fluid profiles underwent three testing sessions at 6-month intervals, including the following tests: Reaction Time and Rapid Visual Information Processing (assessing attention and reaction times); Delayed Matching-to-Sample, Paired Associates Learning, Spatial Recognition Memory and Pattern Recognition Memory (assessing memory); Spatial Working Memory (assessing executive functions)...
February 22, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28630492/towards-affordable-biomarkers-of-frontotemporal-dementia-a-classification-study-via-network-s-information-sharing
#5
Martin Dottori, Lucas Sedeño, Miguel Martorell Caro, Florencia Alifano, Eugenia Hesse, Ezequiel Mikulan, Adolfo M García, Amparo Ruiz-Tagle, Patricia Lillo, Andrea Slachevsky, Cecilia Serrano, Daniel Fraiman, Agustin Ibanez
Developing effective and affordable biomarkers for dementias is critical given the difficulty to achieve early diagnosis. In this sense, electroencephalographic (EEG) methods offer promising alternatives due to their low cost, portability, and growing robustness. Here, we relied on EEG signals and a novel information-sharing method to study resting-state connectivity in patients with behavioral variant frontotemporal dementia (bvFTD) and controls. To evaluate the specificity of our results, we also tested Alzheimer's disease (AD) patients...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630235/ultrasound-markers-of-carotid-atherosclerosis-and-cognition-the-northern-manhattan-study
#6
Hannah Gardener, Michelle R Caunca, Chuanhui Dong, Ying Kuen Cheung, Mitchell S V Elkind, Ralph L Sacco, Tatjana Rundek, Clinton B Wright
BACKGROUND AND PURPOSE: Ultrasound markers of carotid atherosclerosis may be related to cognitive status. We hypothesized that individuals with greater carotid intima-media thickness (cIMT) and carotid plaque burden would exhibit worse cognition. METHODS: One thousand one hundred sixty-six stroke-free participants from the NOMAS (Northern Manhattan Study) underwent carotid ultrasound and neuropsychological examination. Among them, 826 underwent a second neuropsychological examination an average of 5 years later...
June 19, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28611821/patients-with-mild-cognitive-impairment-show-lower-visual-short-term-memory-performance-in-feature-binding-tasks
#7
Raju P Sapkota, Ian van der Linde, Nirmal Lamichhane, Tirthalal Upadhyaya, Shahina Pardhan
BACKGROUND: Early cognitive changes in people at risk of developing dementia may be detected using behavioral tests that examine the performance of typically affected brain areas, such as the hippocampi. An important cognitive function supported by the hippocampi is memory binding, in which object features are associated to create a unified percept. AIM: To compare visual short-term memory (VSTM) binding performance for object names, locations, and identities between a participant group known to be at higher risk of developing dementia (mild cognitive impairment [MCI]) and healthily aging controls...
January 2017: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/28611655/obesity-and-co-morbid-conditions-are-associated-with-specific-neuropsychiatric-symptoms-in-mild-cognitive-impairment
#8
Ashley H Sanderlin, David Todem, Andrea C Bozoki
Background: Neuropsychiatric symptoms (NPSs) in MCI, and midlife obesity increase the likelihood of developing Alzheimer's disease. It is unknown whether obesity or related health conditions modify the risk of NPS or severity of cognitive impairment in MCI. Methods: One hundred and thirteen subjects with MCI were assessed near the time of MCI diagnosis. The sample was divided by BMI and related disorders, type-2 diabetes (T2D) and obstructive sleep apnea (OSA) to measure the relationship of these groups with NPS and severity of MCI...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28605073/antibody-mimetic-peptoid-nanosheet-for-label-free-serum-based-diagnosis-of-alzheimer-s-disease
#9
Ling Zhu, Zijian Zhao, Peng Cheng, Zhaohui He, Zhiqiang Cheng, Jiaxi Peng, Huayi Wang, Chen Wang, Yanlian Yang, Zhiyuan Hu
Alzheimer's disease (AD) is the most common form of dementia characterized by progressive cognitive decline. Current diagnosis of AD is based on symptoms, neuropsychological tests, and neuroimaging, and is usually evident years after the pathological process. Early assessment at the preclinical or prodromal stage is in a great demand since treatment after the onset can hardly stop or reverse the disease progress. However, early diagnosis of AD is challenging due to the lack of reliable noninvasive approaches...
June 12, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28601570/agreement-among-neuropsychological-and-behavioral-data-and-pib-findings-in-diagnosing-frontotemporal-dementia
#10
Kelly A Ryan, Dustin Hammers, Angeline DeLeon, Hande Bilen, Kirk Frey, James Burke, Roger Albin, Nancy Barbas, Judith Heidebrink, Bruno Giordani
Diagnostic inaccuracies have been reported in Alzheimer's disease (AD) and Frontotemporal Dementia (FTD) using clinical data alone. The [(11)C]-PiB PET scan offers a new method of identifying AD based on the detection of amyloid deposits. Our study investigated whether there was an agreement between neuropsychological and behavioral data and PiB findings in the diagnosis of FTD. Participants were 32 patients diagnosed with suspected FTD by clinical consensus. All participants underwent neuropsychological testing and PiB imaging...
June 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28601231/factors-affecting-therapeutic-response-to-rivastigmine-in-alzheimer-s-disease-patients-in-taiwan
#11
Tzu-Hua Chen, Mei-Chuan Chou, Chiou-Lian Lai, Shyh-Jong Wu, Chia-Ling Hsu, Yuan-Han Yang
Rivastigmine has been widely used in mild-to-moderate Alzheimer's disease (AD), but the therapeutic response rate varies from 20 to 60%. A dose-dependent effect has been suggested, but the plasma concentration of rivastigmine and its metabolite, NAP 226-90, were not measured in previous studies. The influencing factors of therapeutic response are complicated and discordant in various studies among different ethnic groups. Hence, we analyzed the therapeutic responses of rivastigmine, measured by neuropsychological assessments, among 63 clinically diagnosed AD patients taking a daily dosage of 6-9 mg in relation to their plasma concentration of rivastigmine and NAP 226-90, apolipoprotein E (APOE) genotype and demographic characteristics...
June 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28595749/negative-emotional-verbal-memory-biases-in-mild-cognitive-impairment-and-late-onset-depression
#12
Linda Mah, Nicole D Anderson, Nicolaas Paul L G Verhoeff, Bruce G Pollock
OBJECTIVE: Early and preferential targeting of limbic structures by Alzheimer disease (AD)-related pathology suggests emotion dysregulation may serve as a marker of AD risk. We studied emotional verbal memory in two groups at risk for AD, amnestic mild cognitive impairment (aMCI) and late-onset depression (LOD), to test the hypothesis that aMCI and LOD would be characterized by a negative bias in emotional memory, whereas cognitively normal (CN) adults would show the "positivity effect" associated with healthy aging...
May 8, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28595184/neuropsychological-profiles-differentiate-alzheimer-disease-from-subcortical-ischemic-vascular-dementia-in-an-autopsy-defined-cohort
#13
Liliana Ramirez-Gomez, Ling Zheng, Bruce Reed, Joel Kramer, Dan Mungas, Chris Zarow, Harry Vinters, John M Ringman, Helena Chui
BACKGROUND/AIMS: The aim of this study was to assess the ability of neuropsychological tests to differentiate autopsy-defined Alzheimer disease (AD) from subcortical ischemic vascular dementia (SIVD). METHODS: From a sample of 175 cases followed longitudinally that underwent autopsy, we selected 23 normal controls (NC), 20 SIVD, 69 AD, and 10 mixed cases of dementia. Baseline neuropsychological tests, including Memory Assessment Scale word list learning test, control oral word association test, and animal fluency, were compared between the three autopsy-defined groups...
June 9, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28594853/the-unexpected-co-occurrence-of-grn-and-mapt-p-a152t-in-basque-families-clinical-and-pathological-characteristics
#14
Fermin Moreno, Begoña Indakoetxea, Myriam Barandiaran, María Cristina Caballero, Ana Gorostidi, Francesc Calafell, Alazne Gabilondo, Mikel Tainta, Miren Zulaica, José F Martí Massó, Adolfo López de Munain, Pascual Sánchez-Juan, Suzee E Lee
BACKGROUND: The co-occurrence of the c.709-1G>A GRN mutation and the p.A152T MAPT variant has been identified in 18 Basque families affected by frontotemporal dementia (FTD). We aimed to investigate the influence of the p.A152T MAPT variant on the clinical and neuropathological features of these Basque GRN families. METHODS AND FINDINGS: We compared clinical characteristics of 14 patients who carried the c.709-1G>A GRN mutation (GRN+/A152T-) with 21 patients who carried both the c...
2017: PloS One
https://www.readbyqxmd.com/read/28592457/functional-network-integrity-presages-cognitive-decline-in-preclinical-alzheimer-disease
#15
Rachel F Buckley, Aaron P Schultz, Trey Hedden, Kathryn V Papp, Bernard J Hanseeuw, Gad Marshall, Jorge Sepulcre, Emily E Smith, Dorene M Rentz, Keith A Johnson, Reisa A Sperling, Jasmeer P Chhatwal
OBJECTIVE: To examine the utility of resting-state functional connectivity MRI (rs-fcMRI) measurements of network integrity as a predictor of future cognitive decline in preclinical Alzheimer disease (AD). METHODS: A total of 237 clinically normal older adults (aged 63-90 years, Clinical Dementia Rating 0) underwent baseline β-amyloid (Aβ) imaging with Pittsburgh compound B PET and structural and rs-fcMRI. We identified 7 networks for analysis, including 4 cognitive networks (default, salience, dorsal attention, and frontoparietal control) and 3 noncognitive networks (primary visual, extrastriate visual, motor)...
June 7, 2017: Neurology
https://www.readbyqxmd.com/read/28586648/objective-features-of-subjective-cognitive-decline-in-a-us-national-database
#16
Stephanie Kielb, Emily Rogalski, Sandra Weintraub, Alfred Rademaker
INTRODUCTION: Functional and cognitive features of subjective cognitive decline (SCD) were identified in a longitudinal database from the National Alzheimer Coordinating Center. METHODS: Cognitively normal older adults with (SCD+) and without (SCD-) self-reported memory complaints (N = 3915) were compared on (1) baseline Functional Assessment Questionnaire ratings, (2) baseline scores and longitudinal rate of change estimates from nine neuropsychological tests, and (3) final clinical diagnoses...
June 3, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28582863/framingham-risk-score-and-the-risk-of-progression-from-mild-cognitive-impairment-to-dementia
#17
Giovanna Viticchi, Lorenzo Falsetti, Laura Buratti, Giulia Sajeva, Simona Luzzi, Marco Bartolini, Leandro Provinciali, Mauro Silvestrini
BACKGROUND: Mild cognitive impairment (MCI) often represents the clinical manifestation of cognitive deterioration preceding Alzheimer's disease (AD). Currently, there are no reliable approaches for an objective evaluation of the risk of developing AD in MCI patients. OBJECTIVE: The aim of this study was to verify whether the Framingham cardiovascular risk profile (FCRP) could be useful to identify patients at the highest risk of conversion from MCI to AD. METHODS: Patients with amnestic MCI (aMCI) were carefully investigated to assess their vascular risk profile...
May 27, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28578804/human-anterolateral-entorhinal-cortex-volumes-are-associated-with-cognitive-decline-in-aging-prior-to-clinical-diagnosis
#18
Rosanna K Olsen, Lok-Kin Yeung, Alix Noly-Gandon, Maria C D'Angelo, Arber Kacollja, Victoria M Smith, Jennifer D Ryan, Morgan D Barense
We investigated whether older adults without subjective memory complaints, but who present with cognitive decline in the laboratory, demonstrate atrophy in medial temporal lobe (MTL) subregions associated with Alzheimer's disease. Forty community-dwelling older adults were categorized based on Montreal Cognitive Assessment (MoCA) performance. Total gray/white matter, cerebrospinal fluid, and white matter hyperintensity load were quantified from whole-brain T1-weighted and fluid-attenuated inversion recovery magnetic resonance imaging scans, whereas hippocampal subfields and MTL cortical subregion volumes (CA1, dentate gyrus/CA2/3, subiculum, anterolateral and posteromedial entorhinal, perirhinal, and parahippocampal cortices) were quantified using high-resolution T2-weighted scans...
May 8, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28578726/statistically-derived-subtypes-and-associations-with-cerebrospinal-fluid-and-genetic-biomarkers-in-mild-cognitive-impairment-a-latent-profile-analysis
#19
Joel S Eppig, Emily C Edmonds, Laura Campbell, Mark Sanderson-Cimino, Lisa Delano-Wood, Mark W Bondi
OBJECTIVES: Research demonstrates heterogeneous neuropsychological profiles among individuals with mild cognitive impairment (MCI). However, few studies have included visuoconstructional ability or used latent mixture modeling to statistically identify MCI subtypes. Therefore, we examined whether unique neuropsychological MCI profiles could be ascertained using latent profile analysis (LPA), and subsequently investigated cerebrospinal fluid (CSF) biomarkers, genotype, and longitudinal clinical outcomes between the empirically derived classes...
June 5, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28578156/apoe-influences-regional-white-matter-axonal-density-loss-in-alzheimer-s-disease
#20
Catherine F Slattery, Jiaying Zhang, Ross W Paterson, Alexander J M Foulkes, Amelia Carton, Kirsty Macpherson, Laura Mancini, David L Thomas, Marc Modat, Nicolas Toussaint, David M Cash, John S Thornton, Susie M D Henley, Sebastian J Crutch, Daniel C Alexander, Sebastien Ourselin, Nick C Fox, Hui Zhang, Jonathan M Schott
Mechanisms underlying phenotypic heterogeneity in young onset Alzheimer disease (YOAD) are poorly understood. We used diffusion tensor imaging and neurite orientation dispersion and density imaging (NODDI) with tract-based spatial statistics to investigate apolipoprotein (APOE) ε4 modulation of white-matter damage in 37 patients with YOAD (22, 59% APOE ε4 positive) and 23 age-matched controls. Correlation between neurite density index (NDI) and neuropsychological performance was assessed in 4 white-matter regions of interest...
May 3, 2017: Neurobiology of Aging
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