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Dementia-related behaviors

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https://www.readbyqxmd.com/read/28742910/clinicopathological-evaluation-of-chronic-traumatic-encephalopathy-in-players-of-american-football
#1
Jesse Mez, Daniel H Daneshvar, Patrick T Kiernan, Bobak Abdolmohammadi, Victor E Alvarez, Bertrand R Huber, Michael L Alosco, Todd M Solomon, Christopher J Nowinski, Lisa McHale, Kerry A Cormier, Caroline A Kubilus, Brett M Martin, Lauren Murphy, Christine M Baugh, Phillip H Montenigro, Christine E Chaisson, Yorghos Tripodis, Neil W Kowall, Jennifer Weuve, Michael D McClean, Robert C Cantu, Lee E Goldstein, Douglas I Katz, Robert A Stern, Thor D Stein, Ann C McKee
Importance: Players of American football may be at increased risk of long-term neurological conditions, particularly chronic traumatic encephalopathy (CTE). Objective: To determine the neuropathological and clinical features of deceased football players with CTE. Design, Setting, and Participants: Case series of 202 football players whose brains were donated for research. Neuropathological evaluations and retrospective telephone clinical assessments (including head trauma history) with informants were performed blinded...
July 25, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28734998/oxidative-stress-with-tau-hyperphosphorylation-in-memory-impaired-1-2-diacetylbenzene-treated-mice
#2
Sin-Woo Kang, Sung Jin Kim, Min-Sun Kim
Long-term exposure to organic solvent may be related to the incidence of neuronal diseases, such as, Alzheimer's disease, depression, multiple sclerosis, dementia, Parkinson's disease. Previously, the authors reported 1,2-diacetylbenzene (DAB; a neurotoxic metabolite of 1,2-diethylbenzene) causes central and peripheral neuropathies that lead to motor neuronal deficits. Furthermore, it is known DAB increases oxidative stress and protein adduct levels and impairs hippocampal neurogenesis in mice. The authors examined the relevance of oxidative stress and tau hyperphosphorylation in the hippocampus...
July 19, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28734089/dementia-risk-and-prevention-by-targeting-modifiable-vascular-risk-factors
#3
REVIEW
Sana Tariq, Philip A Barber
The incidence of dementia is expected to double in the next 20 years and will contribute to heavy social and economic burden. Dementia is caused by neuronal loss that leads to brain atrophy years before symptoms manifest. Currently, no cure exists and extensive efforts are being made to mitigate cognitive impairment in late life in order to reduce the burden on patients, caregivers, and society. The most common type of dementia, Alzheimer's disease (AD), and vascular dementia (VaD) often co-exists in the brain and shares common, modifiable risk factors, which are targeted in numerous secondary prevention trials...
July 22, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28734065/fdg-pet-dopamine-transporter-spect-and-olfaction-combining-biomarkers-in-rem-sleep-behavior-disorder
#4
Sanne K Meles, David Vadasz, Remco J Renken, Elisabeth Sittig-Wiegand, Geert Mayer, Candan Depboylu, Kathrin Reetz, Sebastiaan Overeem, Angelique Pijpers, Fransje E Reesink, Teus van Laar, Lisette Heinen, Laura K Teune, Helmut Höffken, Marcus Luster, Karl Kesper, Sofie M Adriaanse, Jan Booij, Klaus L Leenders, Wolfgang H Oertel
BACKGROUND: Idiopathic REM sleep behavior disorder is a prodromal stage of Parkinson's disease and dementia with Lewy bodies. Hyposmia, reduced dopamine transporter binding, and expression of the brain metabolic PD-related pattern were each associated with increased risk of conversion to PD. The objective of this study was to study the relationship between the PD-related pattern, dopamine transporter binding, and olfaction in idiopathic REM sleep behavior disorder. METHODS: In this cross-sectional study, 21 idiopathic REM sleep behavior disorder subjects underwent (18) F-fluorodeoxyglucose PET, dopamine transporter imaging, and olfactory testing...
July 22, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28733181/caring-for-a-person-with-dementia-on-the-margins-of-long-term-care-a-perspective-on-burden-from-8-european-countries
#5
Caroline Sutcliffe, Clarissa Giebel, Michel Bleijlevens, Connie Lethin, Minna Stolt, Kai Saks, Maria E Soto, Gabriele Meyer, Adelaida Zabalegui, Helen Chester, David Challis
OBJECTIVES: To explore associations between carer burden and characteristics of (1) the informal carer, (2) the person with dementia, and (3) the care support network in 8 European countries. DESIGN: Cross-sectional study. SETTING: People with dementia judged at risk of admission to long-term care (LTC) facilities in 8 European countries (Estonia, Finland, France, Germany, Netherlands, Spain, Sweden, United Kingdom). PARTICIPANTS: A total of 1223 people with dementia supported by community services at home or receiving day care or respite care and their informal carers...
July 18, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28729824/mouse-models-of-c9orf72-hexanucleotide-repeat-expansion-in-amyotrophic-lateral-sclerosis-frontotemporal-dementia
#6
REVIEW
Ranjan Batra, Chris W Lee
The presence of hexanucleotide repeat expansion (HRE) in the first intron of the human C9orf72 gene is the most common genetic cause underlying both familial amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Studies aimed at elucidating the pathogenic mechanisms associated of C9orf72 FTD and ALS (C9FTD/ALS) have focused on the hypothesis of RNA and protein toxic gain-of-function models, including formation of nuclear RNA foci containing GGGGCC (G4C2) HRE, inclusions containing dipeptide repeat proteins through a non-canonical repeat associated non-ATG (RAN) translation mechanism, and on loss-of-function of the C9orf72 protein...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28728022/loss-of-tmem106b-ameliorates-lysosomal-and-frontotemporal-dementia-related-phenotypes-in-progranulin-deficient-mice
#7
Zoe A Klein, Hideyuki Takahashi, Mengxiao Ma, Massimiliano Stagi, Melissa Zhou, TuKiet T Lam, Stephen M Strittmatter
Progranulin (GRN) and TMEM106B are associated with several common neurodegenerative disorders including frontotemporal lobar degeneration (FTLD). A TMEM106B variant modifies GRN-associated FTLD risk. However, their functional relationship in vivo and the mechanisms underlying the risk modification remain unclear. Here, using transcriptomic and proteomic analyses with Grn(-/-) and Tmem106b(-/-) mice, we show that, while multiple lysosomal enzymes are increased in Grn(-/-) brain at both transcriptional and protein levels, TMEM106B deficiency causes reduction in several lysosomal enzymes...
July 19, 2017: Neuron
https://www.readbyqxmd.com/read/28724588/automatic-measurement-of-prosody-in-behavioral-variant-ftd
#8
Naomi Nevler, Sharon Ash, Charles Jester, David J Irwin, Mark Liberman, Murray Grossman
OBJECTIVE: To help understand speech changes in behavioral variant frontotemporal dementia (bvFTD), we developed and implemented automatic methods of speech analysis for quantification of prosody, and evaluated clinical and anatomical correlations. METHODS: We analyzed semi-structured, digitized speech samples from 32 patients with bvFTD (21 male, mean age 63 ± 8.5, mean disease duration 4 ± 3.1 years) and 17 matched healthy controls (HC). We automatically extracted fundamental frequency (f0, the physical property of sound most closely correlating with perceived pitch) and computed pitch range on a logarithmic scale (semitone) that controls for individual and sex differences...
July 19, 2017: Neurology
https://www.readbyqxmd.com/read/28719625/differences-of-immune-disorders-between-alzheimer-s-disease-and-breast-cancer-based-on-transcriptional-regulation
#9
Wei Kong, Xiaoyang Mou, Jin Deng, Benteng Di, Ruxing Zhong, Shuaiqun Wang, Yang Yang, Weiming Zeng
Although chronic inflammation and immune disorders are of great importance to the pathogenesis of both dementia and cancer, the pathophysiological mechanisms are not clearly understood. In recent years, growing epidemiological evidence and meta-analysis data suggest an inverse association between Alzheimer's disease (AD), which is the most common form of dementia, and cancer. It has been revealed that some common genes and biological processes play opposite roles in AD and cancer; however, the biological immune mechanism for the inverse association is not clearly defined...
2017: PloS One
https://www.readbyqxmd.com/read/28713296/affective-and-engagement-issues-in-the-conception-and-assessment-of-a-robot-assisted-psychomotor-therapy-for-persons-with-dementia
#10
Natacha Rouaix, Laure Retru-Chavastel, Anne-Sophie Rigaud, Clotilde Monnet, Hermine Lenoir, Maribel Pino
The interest in robot-assisted therapies (RAT) for dementia care has grown steadily in recent years. However, RAT using humanoid robots is still a novel practice for which the adhesion mechanisms, indications and benefits remain unclear. Also, little is known about how the robot's behavioral and affective style might promote engagement of persons with dementia (PwD) in RAT. The present study sought to investigate the use of a humanoid robot in a psychomotor therapy for PwD. We examined the robot's potential to engage participants in the intervention and its effect on their emotional state...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28712011/fgf21-attenuates-high-fat-diet-induced-cognitive-impairment-via-metabolic-regulation-and-anti-inflammation-of-obese-mice
#11
Qingzhi Wang, Jing Yuan, Zhanyang Yu, Li Lin, Yinghua Jiang, Zeyuan Cao, Pengwei Zhuang, Michael J Whalen, Bo Song, Xiao-Jie Wang, Xiaokun Li, Eng H Lo, Yuming Xu, Xiaoying Wang
Accumulating studies suggest that overnutrition-associated obesity may lead to development of type 2 diabetes mellitus and metabolic syndromes (MetS). MetS and its components are important risk factors of mild cognitive impairment, age-related cognitive decline, vascular dementia, and Alzheimer's disease. It has been recently proposed that development of a disease-course modification strategy toward early and effective risk factor management would be clinically significant in reducing the risk of metabolic disorder-initiated cognitive decline...
July 15, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28708800/the-effects-of-white-noise-on-agitated-behaviors-mental-status-and-activities-of-daily-living-in-older-adults-with-dementia
#12
Li-Wei Lin, Shu-Chuan Weng, Hua-Shan Wu, Lu-Jen Tsai, Ya-Ling Lin, Shu-Hui Yeh
BACKGROUND: The aging of society is a global trend, and care of older adults with dementia is an urgent challenge. As dementia progresses, patients exhibit negative emotions, memory disorders, sleep disorders, and agitated behavior. Agitated behavior is one of the most difficult problems for family caregivers and healthcare providers to handle when caring for older adults with dementia. PURPOSE: The aim of this study was to investigate the effectiveness of white noise in improving agitated behavior, mental status, and activities of daily living in older adults with dementia...
July 13, 2017: Journal of Nursing Research: JNR
https://www.readbyqxmd.com/read/28707717/an-autopsied-case-of-corticobasal-degeneration-presenting-with-frontotemporal-dementia-followed-by-myoclonus
#13
Yasushi Iwasaki, Keiko Mori, Masumi Ito, Maya Mimuro, Mari Yoshida
A Japanese woman developed frontotemporal dementia (FTD)-like symptoms of abnormal behavior, such as stereotyped behavior and disinhibition. The patient developed these symptoms at the age of 59 years, although aphasia symptoms were not apparent at early disease stages. Progressive parkinsonism was dominant on the left side, and conspicuous myoclonus was recognized in the late disease stage. MRI indicated severe, right side-dominant frontotemporal lobe atrophy with white matter degeneration. Brainstem and cerebellar atrophy were also observed...
July 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28705297/the-diagnosis-and-treatment-of-behavioral-disorders-in-dementia
#14
Torsten Kratz
BACKGROUND: Behavioral disorders such as aggressiveness, agitation, delusions, disinhibition, affect lability, and apathy arise in more than 90% of patients with dementia. Behavioral disorders are a major challenge and the greatest stress factor in everyday life for nursing personnel and for family members caring for the patient. METHODS: This review is based on relevant publications retrieved by a selective literature search in the PubMed, Cochrane Library, and German S3 guideline databases with the search terms "behavioral disorders," "non-cognitive disorders," and "challenging behavior," in conjunction with "dementia" and "behavioral and psychological symptoms of dementia...
June 30, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28686708/drosophila-lines-with-mutant-and-wild-type-human-tdp-43-replacing-the-endogenous-gene-reveals-phosphorylation-and-ubiquitination-in-mutant-lines-in-the-absence-of-viability-or-lifespan-defects
#15
Jer-Cherng Chang, David B Morton
Mutations in TDP-43 are associated with proteinaceous inclusions in neurons and are believed to be causative in neurodegenerative diseases such as frontotemporal dementia or amyotrophic lateral sclerosis. Here we describe a Drosophila system where we have engineered the genome to replace the endogenous TDP-43 orthologue with wild type or mutant human TDP-43(hTDP-43). In contrast to other models, these flies express both mutant and wild type hTDP-43 at similar levels to those of the endogenous gene and importantly, no age-related TDP-43 accumulation observed among all the transgenic fly lines...
2017: PloS One
https://www.readbyqxmd.com/read/28685977/the-post-therapeutic-effect-of-rapamycin-in-mild-traumatic-brain-injured-rats-ensuing-in-the-upregulation-of-autophagy-and-mitophagy
#16
Changxing Wang, Zhiying Hu, Yang Zou, Mingjun Xiang, Yuting Jiang, Benson O A Botchway, Xue Huo, Xiaoxue Du, Marong Fang
Mild traumatic brain injury (mTBI), common in juveniles, has been reported to be caused by sports-related concussion. Many young children may suffer from post-concussion syndrome. mTBI, in early stages of life, could play a part in neuron apoptosis and degeneration, cognitive and motor coordination impairment, as well as dementia. Our study was aimed at further investigating the post therapeutic efficacy of rapamycin in the recuperation of mTBI whiles at the same time investigating the metamorphosis in both autophagy and mitophagy in mTBI...
July 7, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28676095/toll-like-receptor-4-stimulation-with-monophosphoryl-lipid-a-ameliorates-motor-deficits-and-nigral-neurodegeneration-triggered-by-extraneuronal-%C3%AE-synucleinopathy
#17
Serena Venezia, Violetta Refolo, Alexia Polissidis, Leonidas Stefanis, Gregor K Wenning, Nadia Stefanova
BACKGROUND: Alpha-synuclein (α-syn) aggregation represents the pathological hallmark of α-synucleinopathies like Parkinson's disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA). Toll-like receptors (TLRs) are a family of highly conserved molecules that recognize pathogen-associated molecular patterns and define the innate immunity response. It was previously shown that TLR4 plays a role in the clearance of α-syn, suggesting that TLR4 up-regulation in microglia may be a natural mechanism to improve the clearance of α-syn...
July 4, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28660843/rapidly-progressive-fronto-temporal-dementia-ftd-associated-with-frontotemporal-lobar-degeneration-ftld-in-the-presence-of-fused-in-sarcoma-fus-protein-a-rare-sporadic-and-aggressive-form-of-ftd
#18
Nicholas I Bradfield, Catriona McLean, John Drago, David G Darby, David Ames
Fronto-temporal dementia (FTD) associated with Fused in Sarcoma (FUS) protein accumulation is an uncommon cause of FTD with a distinct syndrome of young age onset behavioral variant FTD, without a family history of FTD and caudate atrophy. We present a sporadic case of a 61-year-old patient with mixed features of both behavioral variant FTD with later semantic language dissolution associated with pathologically proven FUS. He was older than usual for FUS pathology, his course was rapidly progressive, and he had atypical language features...
June 29, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28645308/neonatal-aav-delivery-of-alpha-synuclein-induces-pathology-in-the-adult-mouse-brain
#19
Marion Delenclos, Ayman H Faroqi, Mei Yue, Aishe Kurti, Monica Castanedes-Casey, Linda Rousseau, Virginia Phillips, Dennis W Dickson, John D Fryer, Pamela J McLean
Abnormal accumulation of alpha-synuclein (αsyn) is a pathological hallmark of Lewy body related disorders such as Parkinson's disease and Dementia with Lewy body disease. During the past two decades, a myriad of animal models have been developed to mimic pathological features of synucleinopathies by over-expressing human αsyn. Although different strategies have been used, most models have little or no reliable and predictive phenotype. Novel animal models are a valuable tool for understanding neuronal pathology and to facilitate development of new therapeutics for these diseases...
June 23, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28645127/-high-prevalence-of-antipsychotic-medication-use-in-dementia-patients-in-german-neuropsychiatric-practices
#20
Jens Bohlken, Anke Booker, Karel Kostev
Background The aim of the present study was to examine inpatients as well as patients living at home with respect to the frequency of antipsychotic medication use and to determine the factors leading to initial use of antipsychotics following dementia diagnosis. Methods This study included patients aged 60 years and over with an initial diagnosis of all-cause dementia (index date) by German psychiatrists in Disease Analyzer database (IMS Health). The main outcome measure was the proportion of patients who initially received an antipsychotic prescription after the index date...
June 2017: Fortschritte der Neurologie-Psychiatrie
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