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https://www.readbyqxmd.com/read/29456359/comparison-of-computerized-and-standard-cognitive-test-in-thai-memory-clinic
#1
Pornpatr A Dharmasaroja, Disya Ratanakorn, Samart Nidhinandana, Thammanard Charernboon
Background: Computer-based Thai Cognitive Test or Computer-based Thai Mental State Examination (cTMSE) was developed aiming to help doctors to easily get the accurate results of TMSE in a routine, busy outpatient clinics. The purpose of this study was to compare the evaluation process in terms of feasibility, duration of the test, participants/administrator preference, and the results of cognitive test between cTMSE and the standard Thai Mental State Examination (sTMSE). Methods: Twenty-two elderly participants (>60 years old) who were not demented and 22 patients with mild-to-moderate dementia were included in the study...
January 2018: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29449187/cortical-atrophy-patterns-in-early-parkinson-s-disease-patients-using-hierarchical-cluster-analysis
#2
Carme Uribe, Barbara Segura, Hugo Cesar Baggio, Alexandra Abos, Anna Isabel Garcia-Diaz, Anna Campabadal, Maria Jose Marti, Francesc Valldeoriola, Yaroslau Compta, Eduard Tolosa, Carme Junque
INTRODUCTION: Cortical brain atrophy detectable with MRI in non-demented advanced Parkinson's disease (PD) is well characterized, but its presence in early disease stages is still under debate. We aimed to investigate cortical atrophy patterns in a large sample of early untreated PD patients using a hypothesis-free data-driven approach. METHODS: Seventy-seven de novo PD patients and 50 controls from the Parkinson's Progression Marker Initiative database with T1-weighted images in a 3-tesla Siemens scanner were included in this study...
February 8, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29432519/the-role-of-biomarkers-and-imaging-in-the-clinical-diagnosis-of-dementia
#3
Antony J Bayer
Recognition of dementia relies on a good clinical history, supported by formal cognitive testing, but identifying the subtype of dementia may be wrong in 20% or more of cases. Accuracy may be improved by use of imaging and cerebrospinal fluid (CSF) biomarkers. Structural neuroimaging is recommended for most patients, not just to identify potentially reversible surgical pathology, but also to detect vascular changes and patterns of cerebral atrophy. Functional imaging can help to confirm neurodegeneration and to distinguish dementia subtypes when structural imaging has been inconclusive...
February 8, 2018: Age and Ageing
https://www.readbyqxmd.com/read/29426824/plasma-a%C3%AE-analysis-using-magnetically-labeled-immunoassays-and-pet-18f-florbetapir-binding-in-non-demented-patients-with-major-depressive-disorder
#4
Kuan-Yi Wu, Ing-Tsung Hsiao, Chia-Hsiang Chen, Chia-Yih Liu, Jung-Lung Hsu, Sheng-Yao Huang, Tzu-Chen Yen, Kun-Ju Lin
An increased level of brain amyloid deposition and a decreased level of cerebral spinal fluid (CSF) Aβ42 are currently considered reliable biomarkers of Alzheimer's disease (AD); however, the usefulness of plasma Aβ levels are not well-established. This study investigated the relationships between plasma Aβ levels and cerebral amyloidosis in 36 non-demented patients with major depressive disorder (MDD). All participants underwent 18F-florbetapir PET imaging and provided a blood sample at the same time for immunomagnetic reduction assay to measure the plasma levels of Aβ40 and Aβ42...
February 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29417704/cognitive-impairment-in-parkinson-s-disease-alzheimer-s-dementia-and-vascular-dementia-the-role-of-the-clock-drawing-test
#5
Cettina Allone, Viviana Lo Buono, Francesco Corallo, Lilla Bonanno, Rosanna Palmeri, Giuseppe Di Lorenzo, Angela Marra, Placido Bramanti, Silvia Marino
AIM: Cognitive impairment is present in several neurodegenerative disorders. The clock-drawing test (CDT) represents a useful screening instrument for assessing the evolution of cognitive decline. The aim of this study was to investigate the sensitivity of the CDT in monitoring and differentiating the evolution of cognitive decline in Alzheimer's dementia (AD), vascular dementia (VaD), and Parkinson's disease (PD). METHODS: This study involved 139 patients, including 39 patients with PD and mild cognitive impairment, 16 demented PD patients, 21 VaD patients with mild cognitive impairment, 17 patients with VaD, 33 patients with mild cognitive impairment due to AD, and 13 patients with probable AD...
February 7, 2018: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/29416221/predicting-factors-of-depression-and-anxiety-in-mental-health-nurses-a-quantitative-cross-sectional-study
#6
Konstantinos Tsaras, Ioanna V Papathanasiou, Viktor Vus, Antigoni Panagiotopoulou, Maria Alexandra Katsou, Martha Kelesi, Evangelos C Fradelos
Introduction: The nursing profession is characterized as one of the most stressful and emotional dementing professions. It is widely agreed that many nurses are experiencing anxiety and depression as a results of their profession. Purpose: The purpose of this study was to assess the prevalence and associated factors of depression and anxiety among mental health nurses working in public psychiatric hospitals, in order to identify independent predictors of mental health disorders risk...
February 2018: Medical Archives
https://www.readbyqxmd.com/read/29406924/white-matter-hyperintensities-on-mri-in-dementia-with-lewy-bodies-parkinson-s-disease-with-dementia-and-alzheimer-s-disease
#7
Hideto Joki, Yuichi Higashiyama, Yoshiharu Nakae, Chiharu Kugimoto, Hiroshi Doi, Katsuo Kimura, Hitaru Kishida, Naohisa Ueda, Tatsu Nakano, Tatsuya Takahashi, Shigeru Koyano, Hideyuki Takeuchi, Fumiaki Tanaka
BACKGROUND: In dementia with Lewy bodies (DLB) and Parkinson's disease with dementia (PDD), it is still debated whether white matter hyperintensities (WMH) on MRI reflect atherosclerotic cerebrovascular changes or Alzheimer's disease (AD)-related pathology such as cerebral amyloid angiopathy. To examine AD-related pathology in DLB and PDD, we compared the severity of WMH and medial temporal lobe atrophy among patients with DLB, PDD, non-demented PD (PDND), and AD. METHODS: We retrospectively studied sex- and age-matched outpatients with AD, DLB, PDD, and PDND, as well as subjects without central nervous system disorders as normal controls (n=50 each)...
February 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29394505/sleep-and-cognitive-decline-a-prospective-non-demented-elderly-cohort-study
#8
Seung Wan Suh, Ji Won Han, Ju Ri Lee, Seonjeong Byun, Soon Jai Kwon, Sang Hoon Oh, Kyoung Hwan Lee, Guehee Han, Jong Woo Hong, Kyung Phil Kwak, Bong-Jo Kim, Shin Gyeom Kim, Jeong Lan Kim, Tae Hui Kim, Seung-Ho Ryu, Seok Woo Moon, Joon Hyuk Park, Jiyeong Seo, Jong Chul Youn, Dong Young Lee, Dong Woo Lee, Seok Bum Lee, Jung Jae Lee, Jin Hyeong Jhoo, Ki Woong Kim
OBJECTIVE: To investigate sleep disturbances that induce cognitive changes over four years in non-demented elderlies. METHODS: Data were acquired from a nationwide, population-based, prospective cohort of Korean elderlies (2,238 normal cognition [NC] and 655 mild cognitive impairment [MCI]). At baseline and 4-year follow up assessments, sleep-related parameters (mid-sleep time, sleep duration, latency, subjective quality, efficiency and daytime dysfunction) and cognitive status were measured using Pittsburgh Sleep Quality Index and Consortium to Establish a Registry for Alzheimer's Disease Assessment, respectively...
February 2, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29392456/distinct-manifestation-of-cognitive-deficits-associate-with-different-resting-state-network-disruptions-in-non-demented-patients-with-parkinson-s-disease
#9
Kazuya Kawabata, Hirohisa Watanabe, Kazuhiro Hara, Epifanio Bagarinao, Noritaka Yoneyama, Aya Ogura, Kazunori Imai, Michihito Masuda, Takamasa Yokoi, Reiko Ohdake, Yasuhiro Tanaka, Takashi Tsuboi, Tomohiko Nakamura, Masaaki Hirayama, Mizuki Ito, Naoki Atsuta, Satoshi Maesawa, Shinji Naganawa, Masahisa Katsuno, Gen Sobue
Cognitive deficits in Parkinson's disease (PD) are heterogeneous entities, but a relationship between the heterogeneity of cognitive deficits and resting-state network (RSN) changes remains elusive. In this study, we examined five sub-domain scores according to Addenbrooke's Cognitive Examination-Revised (ACE-R) for the cognitive evaluation and classification of 72 non-demented patients with PD. Twenty-eight patients were classified as PD with normal cognition (PD-NC). The remaining 44 were subdivided into the following 2 groups using a hierarchical cluster analysis: 20 with a predominant decrease in memory (PD with amnestic cognitive deficits: PD-A) and 24 with good memory who exhibited a decrease in other sub-domains (PD with non-amnestic cognitive deficits: PD-NA)...
February 1, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29390184/progress-and-challenges-in-the-diagnosis-of-dementia-a-critical-review
#10
Maria Paraskevaidi, Pierre L Martin-Hirsch, Francis Luke Martin
Longer life expectancies have led to an increased number of neurodegenerative disease cases globally. Accurate diagnosis of this devastating disorder is of crucial importance but is still feasible only by a brain biopsy after death. An enormous amount of attention and research has been in place over the years towards the better understanding of the mechanisms, as well as the early diagnosis, of neurodegeneration. However, numerous studies have been contradictory from time to time, while new diagnostic methods are constantly developed in a tireless effort to tackle the disease...
February 1, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29376854/detection-of-dementia-cases-in-two-swedish-health-registers-a-validation-study
#11
Debora Rizzuto, Adina L Feldman, Ida K Karlsson, Anna K Dahl Aslan, Margaret Gatz, Nancy L Pedersen
BACKGROUND: Population-based health registers are potential assets in epidemiological research; however, the quality of case ascertainment is crucial. OBJECTIVE: To compare the case ascertainment of dementia, from the National Patient Register (NPR) and the Cause of Death Register (CDR) with dementia diagnoses from six Swedish population based studies. METHODS: Sensitivity, specificity, and positive predictive value (PPV) of dementia identification in NPR and CDR were estimated by individual record linkage with six Swedish population based studies (n = 19,035)...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29374846/structural-and-functional-papez-circuit-integrity-in-amyotrophic-lateral-sclerosis
#12
Ana Paula Arantes Bueno, Walter Hugo L Pinaya, Luciana M Moura, Maxime Bertoux, Ratko Radakovic, Matthew C Kiernan, Antonio Lucio Teixeira, Leonardo Cruz de Souza, Michael Hornberger, João Ricardo Sato
Cognitive impairment in amyotrophic lateral sclerosis (ALS) is heterogeneous but now recognized as a feature in non-demented patients and no longer exclusively attributed to executive dysfunction. However, despite common reports of temporal lobe changes and memory deficits in ALS, episodic memory has been less explored. In the current study, we examined how the Papez circuit-a circuit known to participate in memory processes-is structurally and functionally affected in ALS patients (n = 20) compared with healthy controls (n = 15), and whether these changes correlated with a commonly used clinical measure of episodic memory...
January 27, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29357308/systemic-inflammation-as-a-predictor-of-brain-aging-contributions-of-physical-activity-metabolic-risk-and-genetic-risk
#13
Fabian Corlier, George Hafzalla, Joshua Faskowitz, Lewis H Kuller, James T Becker, Oscar L Lopez, Paul M Thompson, Meredith N Braskie
Inflammatory processes may contribute to risk for Alzheimer's disease (AD) and age-related brain degeneration. Metabolic and genetic risk factors, and physical activity may, in turn, influence these inflammatory processes. Some of these risk factors are modifiable, and interact with each other. Understanding how these processes together relate to brain aging will help to inform future interventions to treat or prevent cognitive decline. We used brain magnetic resonance imaging (MRI) to scan 335 older adult humans (mean age 77...
January 18, 2018: NeuroImage
https://www.readbyqxmd.com/read/29355828/neighborhood-built-environment-and-cognition-in-non-demented-older-adults-the-multi-ethnic-study-of-atherosclerosis
#14
Lilah M Besser, Daniel A Rodriguez, Noreen McDonald, Walter A Kukull, Annette L Fitzpatrick, Stephen R Rapp, Teresa Seeman
Preliminary studies suggest that neighborhood social and built environment (BE) characteristics may affect cognition in older adults. Older adults are particularly vulnerable to the neighborhood environment due to a decreasing range of routine travel with increasing age. We examined if multiple neighborhood BE characteristics are cross-sectionally associated with cognition in a diverse sample of older adults, and if the BE-cognition associations vary by individual-level demographics. The sample included 4539 participants from the Multi-Ethnic Study of Atherosclerosis...
January 9, 2018: Social Science & Medicine
https://www.readbyqxmd.com/read/29354216/mixed-dementia-a-review-of-the-evidence
#15
Nilton Custodio, Rosa Montesinos, David Lira, Eder Herrera-Pérez, Yadira Bardales, Lucía Valeriano-Lorenzo
Mixed dementia is the coexistence of Alzheimer's disease and cerebrovascular disease (CVD) in the same demented patient. Currently, its diagnosis and treatment remains a challenge for practitioners. To provide an overview of the epidemiology, pathogenesis, natural history, diagnosis, and therapy of Mixed Vascular-Alzheimer Dementia (MVAD). The literature was reviewed for articles published between 1990-2016 by using the keywords linked to MVAD. Neuropathological studies indicate that MVAD is a very common pathological finding in the elderly with a prevalence about of 22%...
October 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29353063/dipeptidyl-peptidase-iv-which-probably-plays-important-roles-in-alzheimer-disease-ad-pathology-is-upregulated-in-ad-brain-neurons-and-associates-with-amyloid-plaques
#16
Hans-Gert Bernstein, Henrik Dobrowolny, Gerburg Keilhoff, Johann Steiner
There is evidence from in vitro experiments that dipeptidyl peptidase IV (DPP IV) might play role(s) in amyloid formation. However, nothing is known about the localization of the enzyme in brains of individuals with Alzheimer's disease. We herein show that in comparison to non-demented controls DPP IV is upregulated in AD brain neurons and occurs in multiple amyloid plaques.
January 16, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29344405/lee-silverman-voice-treatment-versus-standard-speech-and-language-therapy-versus-control-in-parkinson-s-disease-a-pilot-randomised-controlled-trial-pd-comm-pilot
#17
Catherine M Sackley, Christina H Smith, Caroline E Rick, Marian C Brady, Natalie Ives, Smitaa Patel, Rebecca Woolley, Francis Dowling, Ramilla Patel, Helen Roberts, Sue Jowett, Keith Wheatley, Debbie Kelly, Gina Sands, Carl E Clarke
Background: Speech-related problems are common in Parkinson's disease (PD), but there is little evidence for the effectiveness of standard speech and language therapy (SLT) or Lee Silverman Voice Treatment (LSVT LOUD®). Methods: The PD COMM pilot was a three-arm, assessor-blinded, randomised controlled trial (RCT) of LSVT LOUD®, SLT and no intervention (1:1:1 ratio) to assess the feasibility and to inform the design of a full-scale RCT. Non-demented patients with idiopathic PD and speech problems and no SLT for speech problems in the past 2 years were eligible...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29341457/different-effects-of-dexmedetomidine-and-midazolam-on-the-expression-of-nr2b-and-gabaa-%C3%AE-1-following-peripheral-nerve-injury-in-rats
#18
Jiayu Chen, Hanjun Li, Grewo Lim, Michael F McCabe, Wei Zhao, Yunli Yang, Weiqing Ma, Na Li
Neuropathic pain is a complex, chronic pain condition and the treatment is a major clinical challenge. Recent studies have shown that two FDA approved drugs dexmedetomidine (DEX) and midazolam (MZL), may be useful in treating neuropathic pain, but the mechanism is not fully dementated. Here, we investigated the effects and mechanisms of DEX and MZL treatment in the peripheral nerve injury model. Intramuscular injection with DEX and MZL attenuated the development of mechanical allodynia and thermal hyperalgesia in rats with chronic constriction injury (CCI)...
January 17, 2018: IUBMB Life
https://www.readbyqxmd.com/read/29337241/differential-effects-of-alzheimer-s-disease-a%C3%AE-40-and-42-on-endocytosis-and-intraneuronal-trafficking
#19
Rajesh S Omtri, Kevin Thompson, Xiojia Tang, Chaitanya C Gali, Ute Panzenboeck, Michael W Davidson, Krishna R Kalari, Karunya K Kadimalla
Anomalous neuronal accumulation of Aβ peptides was shown to affect synaptic transmission and contribute to neurodegeneration in Alzheimer's disease (AD) brain. Neuronal cells internalize amyloid beta (Aβ) peptides from the brain extracellular space even under normal physiological conditions, and these endocytotic pathways go awry during AD progression. We hypothesized that exposure to toxic Aβ species accumulating in AD brain contribute to perturbations in neuronal endocytosis. We have shown substantial down-regulation of KEGG endocytotic pathway genes in AD patient brain regions that accumulate Aβ compared to those in non-demented individuals...
January 11, 2018: Neuroscience
https://www.readbyqxmd.com/read/29334222/on-line-preconcentration-in-capillaries-by-multiple-large-volume-sample-stacking-an-alternative-to-immunoassays-for-quantification-of-amyloid-beta-peptides-biomarkers-in-cerebrospinal-fluid
#20
Cedric Crosnier de Lassichere, Thanh Duc Mai, Markus Otto, Myriam Taverna
A novel electrokinetic preconcentration approach, so-called multiple pressure-assisted large-volume sample stacking with an electroosmotic flow pump (M-PA-LVSEP), was developed to allow in-capillary enrichment and separation of analytes from unlimited sample volumes. With this approach, the inherent limitation of in-capillary electrokinetic preconcentrations to the separation capillary volume can be overcome. The M-PA-LVSEP protocol relies on repeated cycles of pressure-assisted electroosmotic pumping and injection of extremely large sample volumes for analyte stacking and sample matrix removal...
January 15, 2018: Analytical Chemistry
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