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dementia with Lewy bodies

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https://www.readbyqxmd.com/read/29453242/single-subject-spm-fdg-pet-patterns-predict-risk-of-dementia-progression-in-parkinson-disease
#1
Andrea Pilotto, Enrico Premi, Silvia Paola Caminiti, Luca Presotto, Rosanna Turrone, Antonella Alberici, Barbara Paghera, Barbara Borroni, Alessandro Padovani, Daniela Perani
OBJECTIVE: To evaluate the statistical parametric mapping (SPM) procedure for fluorodeoxyglucose (FDG)-PET imaging as a possible single-subject marker of progression to dementia in Parkinson disease (PD). METHODS: Fifty-four consecutive patients with PD without dementia (age at onset of 59.9 ± 10.1 years, disease duration of 5.3 ± 3.4 years) entered the study. The patients underwent an extensive motor and cognitive assessment and a single-subject FDG-PET SPM evaluation at baseline...
February 16, 2018: Neurology
https://www.readbyqxmd.com/read/29448953/clinical-prevalence-of-lewy-body-dementia
#2
Joseph P M Kane, Ajenthan Surendranathan, Allison Bentley, Sally A H Barker, John-Paul Taylor, Alan J Thomas, Louise M Allan, Richard J McNally, Peter W James, Ian G McKeith, David J Burn, John T O'Brien
BACKGROUND: The prevalence of dementia with Lewy bodies (DLB) and dementia in Parkinson's disease (PDD) in routine clinical practice is unclear. Prevalence rates observed in clinical and population-based cohorts and neuropathological studies vary greatly. Small sample sizes and methodological factors in these studies limit generalisability to clinical practice. METHODS: We investigated prevalence in a case series across nine secondary care services over an 18-month period, to determine how commonly DLB and PDD cases are diagnosed and reviewed within two regions of the UK...
February 15, 2018: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/29439335/abnormalities-of-resting-state-cortical-eeg-rhythms-in-subjects-with-mild-cognitive-impairment-due-to-alzheimer-s-and-lewy-body-diseases
#3
Claudio Babiloni, Claudio Del Percio, Roberta Lizio, Giuseppe Noce, Susanna Lopez, Andrea Soricelli, Raffaele Ferri, Maria Teresa Pascarelli, Valentina Catania, Flavio Nobili, Dario Arnaldi, Francesco Famà, Dag Aarsland, Francesco Orzi, Carla Buttinelli, Franco Giubilei, Marco Onofrj, Fabrizio Stocchi, Laura Vacca, Paola Stirpe, Peter Fuhr, Ute Gschwandtner, Gerhard Ransmayr, Heinrich Garn, Lucia Fraioli, Michela Pievani, Giovanni B Frisoni, Fabrizia D'Antonio, Carlo De Lena, Bahar Güntekin, Lutfu Hanoğlu, Erol Başar, Görsev Yener, Derya Durusu Emek-Savaş, Antonio Ivano Triggiani, Raffaella Franciotti, John Paul Taylor, Maria Francesca De Pandis, Laura Bonanni
The present study tested the hypothesis that cortical sources of resting state eyes-closed electroencephalographic (rsEEG) rhythms reveal different abnormalities in cortical neural synchronization in groups of patients with mild cognitive impairment due to Alzheimer's disease (ADMCI) and dementia with Lewy bodies (DLBMCI) as compared to cognitively normal elderly (Nold) subjects. Clinical and rsEEG data in 30 ADMCI, 23 DLBMCI, and 30 Nold subjects were available in an international archive. Age, gender, and education were carefully matched in the three groups...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29439333/risk-of-conversion-to-dementia-in-a-mild-behavioral-impairment-group-compared-to-a-psychiatric-group-and-to-a-mild-cognitive-impairment-group
#4
Fernando E Taragano, Ricardo F Allegri, Silvina L Heisecke, María I Martelli, Mónica L Feldman, Viviana Sánchez, Virginia A García, Graciela Tufro, Diego M Castro, Patricio Perez Leguizamón, Verónica Guelar, Eva Ruotolo, Cecilia Zegarra, Carol Dillon
BACKGROUND: There is insufficient available information on behavioral changes in the absence of cognitive impairment as factors increasing the risk of conversion to dementia. OBJECTIVE: To observe and analyze patients with mild behavioral impairment (MBI), mild cognitive impairment (MCI), and a psychiatry group (PG) to compare the risk of progression to dementia. METHODS: From 677 initially assessed ≥60-year-old patients, a series of 348 patients was studied for a five-year period until censoring or conversion to dementia: 96 with MBI, 87 with MCI, and 165 with general psychiatry disorders, including 4 subgroups: Anxiety, Depression, Psychosis and Others...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29439326/is-there-a-characteristic-clinical-profile-for-patients-with-dementia-and-sundown-syndrome
#5
David Angulo Sevilla, María Teresa Carreras Rodríguez, Patricia Heredia Rodríguez, Marisa Fernández Sánchez, José Aurelio Vivancos Mora, Ana Beatriz Gago-Veiga
BACKGROUND: Sundown syndrome (SS) is the onset or worsening of behavioral symptoms in the evening in patients with dementia. OBJECTIVE: To identify the differential clinical profile of patients with dementia who present SS. METHODS: A cross-sectional, case-control observational study was conducted by retrospectively reviewing the medical records of patients with dementia in a specialized Memory Unit. We compared the characteristics of patients with and without SS, including sociodemographic variables, etiology, and severity of the dementia, behavioral symptoms, sleep disorders (considering insomnia and hypersomnia), other diseases and treatments employed...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29438029/author-response-diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#6
Ian G McKeith
No abstract text is available yet for this article.
February 6, 2018: Neurology
https://www.readbyqxmd.com/read/29438028/reader-response-diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#7
Gang Wang, Hai-Lun Cui, Yue Huang
No abstract text is available yet for this article.
February 6, 2018: Neurology
https://www.readbyqxmd.com/read/29438027/reader-response-diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#8
Jacy B Parmera, Sonia Brucki, Ricardo Nitrini
No abstract text is available yet for this article.
February 6, 2018: Neurology
https://www.readbyqxmd.com/read/29438026/reader-response-diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#9
Toshiki Uchihara, Shuta Toru
No abstract text is available yet for this article.
February 6, 2018: Neurology
https://www.readbyqxmd.com/read/29438025/reader-response-diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#10
Kazuo Abe
No abstract text is available yet for this article.
February 6, 2018: Neurology
https://www.readbyqxmd.com/read/29438024/editors-note-diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#11
Megan Alcauskas, Steven Galetta
No abstract text is available yet for this article.
February 6, 2018: Neurology
https://www.readbyqxmd.com/read/29429645/daytime-sleepiness-in-dementia-with-lewy-bodies-is-associated-with-neuronal-depletion-of-the-nucleus-basalis-of-meynert
#12
Koji Kasanuki, Tanis J Ferman, Melissa E Murray, Michael G Heckman, Otto Pedraza, Fadi S Hanna Al-Shaikh, Takayasu Mishima, Nancy N Diehl, Jay A van Gerpen, Ryan J Uitti, Zbigniew K Wszolek, Neill R Graff-Radford, Dennis W Dickson
INTRODUCTION: Excessive daytime sleepiness is a commonly reported clinical feature of dementia with Lewy bodies (DLB) that can occur early in the disease. Cholinergic depletion is known to be severe in DLB, even when dementia severity is mild. The nucleus basalis of Meynert serves as a primary source of cortical acetylcholine, and has a role in facilitating cortical activation and arousal. We sought to determine whether daytime sleepiness at the initial evaluation of patients with DLB was associated with neuronal loss in the nucleus basalis of Meynert...
February 3, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29425707/dementia
#13
REVIEW
Seth A Gale, Diler Acar, Kirk R Daffner
Dementia is any decline in cognition that is significant enough to interfere with independent, daily functioning. Dementia is best characterized as a syndrome rather than as one particular disease. The causes of dementia are myriad and include primary neurologic, neuropsychiatric, and medical conditions. It is common for multiple diseases to contribute to any one patient's dementia syndrome. Neurodegenerative dementias, like Alzheimer disease and dementia with Lewy bodies, are most common in the elderly, while traumatic brain injury and brain tumors are common causes in younger adults...
February 6, 2018: American Journal of Medicine
https://www.readbyqxmd.com/read/29424040/alpha-event-related-synchronization-after-eye-closing-differs-in-alzheimer-s-disease-and-dementia-with-lewy-bodies-a-magnetoencephalography-study
#14
Masahiro Hata, Ryu Kurimoto, Hiroaki Kazui, Ryouhei Ishii, Leonides Canuet, Yasunori Aoki, Shunichiro Ikeda, Shingo Azuma, Takashi Suehiro, Shunsuke Sato, Yukiko Suzuki, Hideki Kanemoto, Kenji Yoshiyama, Masao Iwase, Manabu Ikeda
BACKGROUND: The electroencephalography (EEG) abnormalities found in patients with dementia with Lewy bodies (DLB) are conflicting. In this study, we used magnetoencephalography, which has higher spatial resolution than electroencephalography, to explore neurophysiological features of DLB that may aid in the differential diagnosis. METHODS: Six patients with DLB, 11 patients with Alzheimer's disease, and 11 age-matched normal subjects were recruited. We investigated alterations in the ratio of event-related synchronization (ERS) in the alpha band after eye-closing...
February 8, 2018: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/29422107/rapid-and-ultra-sensitive-quantitation-of-disease-associated-%C3%AE-synuclein-seeds-in-brain-and-cerebrospinal-fluid-by-%C3%AE-syn-rt-quic
#15
Bradley R Groveman, Christina D Orrù, Andrew G Hughson, Lynne D Raymond, Gianluigi Zanusso, Bernardino Ghetti, Katrina J Campbell, Jiri Safar, Douglas Galasko, Byron Caughey
The diagnosis and treatment of synucleinopathies such as Parkinson disease and dementia with Lewy bodies would be aided by the availability of assays for the pathogenic disease-associated forms of α-synuclein (αSynD) that are sufficiently sensitive, specific, and practical for analysis of accessible diagnostic specimens. Two recent αSynD seed amplification tests have provided the first prototypes for ultrasensitive and specific detection of αSynD in patients' cerebrospinal fluid. These prototypic assays require 5-13 days to perform...
February 9, 2018: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/29413519/imaging-translocator-protein-as-a-biomarker-of-neuroinflammation-in-dementia
#16
William C Kreisl, Ioline D Henter, Robert B Innis
Neuroinflammation has long been considered a potential contributor to neurodegenerative disorders that result in dementia. Accumulation of abnormal protein aggregates in Alzheimer's disease, frontotemporal dementia, and dementia with Lewy bodies is associated with the activation of microglia and astrocytes into proinflammatory states, and chronic low-level activation of glial cells likely contributes to the pathological changes observed in these and other neurodegenerative diseases. The 18kDa translocator protein (TSPO) is a key biomarker for measuring inflammation in the brain via positron emission tomography (PET)...
2018: Advances in Pharmacology
https://www.readbyqxmd.com/read/29412983/parasomnias-and-sleep-related-movement-disorders-in-older-adults
#17
REVIEW
Alex Iranzo
Parasomnias and sleep-related movement disorders are important problems in older adults. Sleep paralysis is rare, but may occur in families. In a minority of patients with disorders of arousal, the episodes persist until the age of 70. Zolpidem and other medications may induce sleepwalking and sleep-related eating. Most patients with idiopathic rapid eye movement (REM) sleep behavior disorder eventually develop Parkinson's disease or dementia with Lewy bodies. Anti-IgLON5 disease includes abnormal behaviors in NREM and REM sleep...
March 2018: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/29407464/abnormalities-of-resting-state-functional-cortical-connectivity-in-patients-with-dementia-due-to-alzheimer-s-and-lewy-body-diseases-an-eeg-study
#18
Claudio Babiloni, Claudio Del Percio, Roberta Lizio, Giuseppe Noce, Susanna Lopez, Andrea Soricelli, Raffaele Ferri, Flavio Nobili, Dario Arnaldi, Francesco Famà, Dag Aarsland, Francesco Orzi, Carla Buttinelli, Franco Giubilei, Marco Onofrj, Fabrizio Stocchi, Paola Stirpe, Peter Fuhr, Ute Gschwandtner, Gerhard Ransmayr, Heinrich Garn, Lucia Fraioli, Michela Pievani, Giovanni B Frisoni, Fabrizia D'Antonio, Carlo De Lena, Bahar Güntekin, Lutfu Hanoğlu, Erol Başar, Görsev Yener, Derya Durusu Emek-Savaş, Antonio Ivano Triggiani, Raffaella Franciotti, John Paul Taylor, Laura Vacca, Maria Francesca De Pandis, Laura Bonanni
Previous evidence showed abnormal posterior sources of resting-state delta (<4 Hz) and alpha (8-12 Hz) rhythms in patients with Alzheimer's disease with dementia (ADD), Parkinson's disease with dementia (PDD), and Lewy body dementia (DLB), as cortical neural synchronization markers in quiet wakefulness. Here, we tested the hypothesis of additional abnormalities in functional cortical connectivity computed in those sources, in ADD, considered as a "disconnection cortical syndrome", in comparison with PDD and DLB...
December 30, 2017: Neurobiology of Aging
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
#19
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/29406901/scan-without-evidence-of-dopaminergic-deficit-swedd-in-degenerative-parkinsonism-and-dementia-with-lewy-bodies-a-prospective-study
#20
Nicolas Nicastro, Pierre R Burkhard, Valentina Garibotto
BACKGROUND: 123I-FP-CIT SPECT imaging is a reliable method to assess presynaptic dopaminergic pathways in degenerative parkinsonisms and dementia with Lewy bodies (DLB). METHODS: We aimed at examining sensitivity of combined visual and semi-quantitative 123I-FP-CIT SPECT analyses in a prospective cohort of subjects with DLB and degenerative parkinsonisms - Parkinson's disease (PD), multiple system atrophy (MSA), corticobasal syndrome (CBS) and progressive supranuclear palsy (PSP) to determine prevalence and clinical significance of scans without evidence of dopaminergic deficit (SWEDD)...
February 15, 2018: Journal of the Neurological Sciences
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