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https://www.readbyqxmd.com/read/28356117/association-of-traditional-chinese-medicine-therapy-and-the-risk-of-dementia-in-patients-with-hypertension-a-nationwide-population-based-cohort-study
#1
Kuen-Hau Chen, Ming-Hsien Yeh, Hanoch Livneh, Bor-Chyuan Chen, I-Hsin Lin, Ming-Chi Lu, Tzung-Yi Tsai, Chia-Chou Yeh
BACKGROUND: Patients with hypertension (HTN) reportedly have a higher risk of developing dementia. However, it remains unclear if use of Traditional Chinese Medicine (TCM), the most common form of complementary and alternative medicine, can help lower the risk of dementia for these patients. So the aim of the study was to investigate the effects of TCM on dementia risk among patients with hypertension. METHODS: This longitudinal cohort study used the Taiwanese National Health Insurance Research Database (NHIRD) to identify 143,382 newly diagnosed hypertension patients aged 20-90 years who received treatment between 1998 and 2007...
March 29, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28303161/a-systematic-review-of-intervention-studies-examining-nutritional-and-herbal-therapies-for-mild-cognitive-impairment-and-dementia-using-neuroimaging-methods-study-characteristics-and-intervention-efficacy
#2
REVIEW
Genevieve Z Steiner, Danielle C Mathersul, Freya MacMillan, David A Camfield, Nerida L Klupp, Sai W Seto, Yong Huang, Mark I Hohenberg, Dennis H Chang
Neuroimaging facilitates the assessment of complementary medicines (CMs) by providing a noninvasive insight into their mechanisms of action in the human brain. This is important for identifying the potential treatment options for target disease cohorts with complex pathophysiologies. The aim of this systematic review was to evaluate study characteristics, intervention efficacy, and the structural and functional neuroimaging methods used in research assessing nutritional and herbal medicines for mild cognitive impairment (MCI) and dementia...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28270784/auditory-and-non-auditory-contributions-for-unaided-speech-recognition-in-noise-as-a-function-of-hearing-aid-use
#3
Anja Gieseler, Maike A S Tahden, Christiane M Thiel, Kirsten C Wagener, Markus Meis, Hans Colonius
Differences in understanding speech in noise among hearing-impaired individuals cannot be explained entirely by hearing thresholds alone, suggesting the contribution of other factors beyond standard auditory ones as derived from the audiogram. This paper reports two analyses addressing individual differences in the explanation of unaided speech-in-noise performance among n = 438 elderly hearing-impaired listeners (mean = 71.1 ± 5.8 years). The main analysis was designed to identify clinically relevant auditory and non-auditory measures for speech-in-noise prediction using auditory (audiogram, categorical loudness scaling) and cognitive tests (verbal-intelligence test, screening test of dementia), as well as questionnaires assessing various self-reported measures (health status, socio-economic status, and subjective hearing problems)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28249715/sleep-and-hippocampal-neurogenesis-implications-for-alzheimer-s-disease
#4
REVIEW
Brianne A Kent, Ralph E Mistlberger
Alzheimer's disease (AD) is the most common cause of dementia and currently there are no effective disease-modifying treatments available. Hallmark symptoms of AD include impaired hippocampus-dependent episodic memory and disrupted sleep and circadian rhythms. The pathways connecting these symptoms are of particular interest because it is well established that sleep and circadian disruption can impair hippocampus-dependent learning and memory. In rodents, these procedures also markedly suppress adult hippocampal neurogenesis, a form of brain plasticity that is believed to play an important role in pattern separation, and thus episodic memory...
April 2017: Frontiers in Neuroendocrinology
https://www.readbyqxmd.com/read/28239906/complementary-medicine-for-treatment-of-agitation-and-delirium-in-older-persons-a-systematic-review-and-narrative-synthesis
#5
REVIEW
Ilana Levy, Samuel Attias, Eran Ben-Arye, Boaz Bloch, Elad Schiff
BACKGROUND: Agitation and delirium frequently occur in cognitively impaired older people. We conducted a systematic review with narrative synthesis of the literature aiming to assess effectiveness of complementary and alternative medicine (CAM) modalities to address these conditions. METHODS: Following preliminary search, we included 40 original researches on CAM treatment of delirium and agitation in older persons. Then, the quality of these studies was assessed using the Downs and Black Checklist and Quality Assessment Tool for Studies with Diverse Designs, and the effect sizes were calculated...
February 26, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28091722/hyperphosphorylated-tau-causes-reduced-hippocampal-ca1-excitability-by-relocating-the-axon-initial-segment
#6
Robert John Hatch, Yan Wei, Di Xia, Jürgen Götz
Hyperphosphorylated tau has a critical role in tauopathies such as Alzheimer's disease and frontotemporal dementia, impairing neuronal function and eventually leading to neurodegeneration. A critical role for tau is supported by studies in transgenic mouse models that express the P301L tau mutation found in cases of familial frontotemporal dementia, with the accumulation of hyperphosphorylated tau in the hippocampus causing reductions in hippocampal long-term potentiation and impairments in spatial learning and memory...
May 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28078993/mirnas-new-biomarkers-and-therapeutic-targets-in-dementia
#7
Ana Teresa Viegas, Joana Ribeiro Guedes, Ana Rafaela Oliveira, Ana Maria Sequeira Cardoso, Ana Luísa Colaço Cardoso
BACKGROUND: Dementia is a complex pathological state that affects millions of individuals worldwide and is responsible for a huge socioeconomic burden, making it a major health concern of current times. Given the impact of dementia in both patients and caregivers, it is crucial to fully clarify the molecular mechanisms underlying dementia-associated disorders, since without this knowledge our ability to correctly diagnose and treat these diseases is severely hampered. METHODS: Epigenetic mechanisms, such as miRNA-mediated post-transcriptional regulation, have been reported to play a role in dementia pathogenesis...
January 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28062720/multimodal-characterization-of-older-apoe2-carriers-reveals-selective-reduction-of-amyloid-load
#8
Michel J Grothe, Sylvia Villeneuve, Martin Dyrba, David Bartrés-Faz, Miranka Wirth
OBJECTIVE: To comprehensively assess neurobiological effects of the protective APOE2 allele in the aged brain using a cross-sectional multimodal neuroimaging approach. METHODS: Multimodal neuroimaging data were obtained from a total of 572 older individuals without dementia (cognitively normal and mild cognitive impairment) enrolled in the Alzheimer's Disease Neuroimaging Initiative and included assessments of regional amyloid load with AV45-PET, glucose metabolism with fluorodeoxyglucose-PET, and gray matter volume with structural MRI...
February 7, 2017: Neurology
https://www.readbyqxmd.com/read/28057562/imaging-retina-to-study-dementia-and-stroke
#9
REVIEW
Carol Yim-Lui Cheung, M Kamran Ikram, Christopher Chen, Tien Yin Wong
With increase in life expectancy, the number of persons suffering from common age-related brain diseases, including neurodegenerative (e.g., dementia) and cerebrovascular (e.g., stroke) disease is expected to rise substantially. As current neuro-imaging modalities such as magnetic resonance imaging may not be able to detect subtle subclinical changes (resolution <100-500 μm) in dementia and stroke, there is an urgent need for other complementary techniques to probe the pathophysiology of these diseases...
March 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28034725/mechanisms-of-acupuncture-on-vascular-dementia-a-review-of-animal-studies
#10
Yang Ye, Wen Zhu, Xue-Rui Wang, Jing-Wen Yang, Ling-Yong Xiao, Yi Liu, Xin Zhang, Cun-Zhi Liu
Vascular dementia (VaD) is the second leading type of dementia after Alzheimer's disease plaguing the aging population. Acupuncture has served as alternative and complementary medicine in the world for a long time and its use for VaD is based on a large body of preclinical and clinical researches. The mechanisms that underlie the protective effects of acupuncture are slowly beginning to be understood. Acupuncture influences multiple aspects of the pathological process of VaD. It improves cognitive function through protecting cerebral neurons from oxidative stress, apoptosis, and neuroinflammation, regulating glucose metabolism and neurotransmitters...
December 26, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/28026197/what-paint-can-tell-us-a-fractal-analysis-of-neurological-changes-in-seven-artists
#11
Alex Forsythe, Tamsin Williams, Ronan G Reilly
OBJECTIVE: The notion that artistic capability increases with dementia is both novel and largely unsupported by available literature. Recent research has suggested an emergence of artistic capabilities to be a by-product of involuntary behaviour seen with dementia, as opposed to a progression in original thinking (de Souza, et al., 2010). A far more complementary explanation comes from Hannemann (2006), who suggests that art offers an outlet for dementia patients to refine and sharpen their cognitive abilities...
January 2017: Neuropsychology
https://www.readbyqxmd.com/read/28005462/recognition-of-c9orf72-mutant-rna-by-single-stranded-silencing-rnas
#12
Jiaxin Hu, Frank Rigo, Thazha P Prakash, David R Corey
Mutations within the chromosome 9 open reading frame 72 (c9orf72) gene are associated with both familial amyotrophic lateral sclerosis and frontotemporal dementia. The mutation leads to an expanded GGGGCC hexanucleotide repeat within the first intron of c9orf72 and an expanded CCCCGG repeat within a corresponding antisense transcript. Both the mutant intronic and antisense RNAs have been implicated in disease. We have previously reported that duplex RNAs complementary to the repeats can recognize disease-causing RNA and block detection of nuclear foci formed by the mutant transcripts...
April 2017: Nucleic Acid Therapeutics
https://www.readbyqxmd.com/read/27986990/multiparametric-computer-aided-differential-diagnosis-of-alzheimer-s-disease-and-frontotemporal-dementia-using-structural-and-advanced-mri
#13
Esther E Bron, Marion Smits, Janne M Papma, Rebecca M E Steketee, Rozanna Meijboom, Marius de Groot, John C van Swieten, Wiro J Niessen, Stefan Klein
OBJECTIVES: To investigate the added diagnostic value of arterial spin labelling (ASL) and diffusion tensor imaging (DTI) to structural MRI for computer-aided classification of Alzheimer's disease (AD), frontotemporal dementia (FTD), and controls. METHODS: This retrospective study used MRI data from 24 early-onset AD and 33 early-onset FTD patients and 34 controls (CN). Classification was based on voxel-wise feature maps derived from structural MRI, ASL, and DTI...
December 16, 2016: European Radiology
https://www.readbyqxmd.com/read/27981671/distinct-white-matter-injury-associated-with-medial-temporal-lobe-atrophy-in-alzheimer-s-versus-semantic-dementia
#14
Alexandre Bejanin, Béatrice Desgranges, Renaud La Joie, Brigitte Landeau, Audrey Perrotin, Florence Mézenge, Serge Belliard, Vincent de La Sayette, Francis Eustache, Gaël Chételat
This study aims at further understanding the distinct vulnerability of brain networks in Alzheimer's disease (AD) versus semantic dementia (SD) investigating the white matter injury associated with medial temporal lobe (MTL) atrophy in both conditions. Twenty-six AD patients, twenty-one SD patients, and thirty-nine controls underwent a high-resolution T1-MRI scan allowing to obtain maps of grey matter volume and white matter density. A statistical conjunction approach was used to identify MTL regions showing grey matter atrophy in both patient groups...
December 16, 2016: Human Brain Mapping
https://www.readbyqxmd.com/read/27884130/a-profile-of-the-clinical-course-of-cognition-and-comorbidity-in-mild-cognitive-impairment-and-dementia-study-the-4c-study-two-complementary-longitudinal-clinical-cohorts-in-the-netherlands
#15
Weiqi Liao, Renske E G Hamel, Marcel G M Olde Rikkert, Saskia M Oosterveld, Pauline Aalten, Frans R J Verhey, Philip Scheltens, Nicole Sistermans, Yolande A L Pijnenburg, Wiesje M van der Flier, Inez H G B Ramakers, René J F Melis
BACKGROUND: Heterogeneous disease trajectories of mild cognitive impairment (MCI) and dementia are frequently encountered in clinical practice, but there is still insufficient knowledge to understand the reasons and mechanisms causing this heterogeneity. In addition to correlates of the disorder, patient characteristics such as their health status, social environment, comorbidities and frailty may contribute to variability in trajectories over time. The current paper outlines the study design and the study population of and provides an overview of the data collected in the Clinical Course of Cognition and Comorbidity in Mild Cognitive Impairment (4C-MCI cohort, n = 315) and Dementia (4C-Dementia cohort, n = 331) Study...
November 25, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27862327/an-order-in-lewy-body-disorders-retrograde-degeneration-in-hyperbranching-axons-as-a-fundamental-structural-template-accounting-for-focal-multifocal-lewy-body-disease
#16
REVIEW
Toshiki Uchihara
Initial clinical recognition of "paralysis agitans" by James Parkinson was expanded by Jean-Martin Charcot, who recognized additional clinical findings of his own, such as slowness (distinct from paralysis), rigidity (distinct from spasticity) and characteristic countenance. Charcot assembled these findings under the umbrella of "Parkinson disease (PD)". This purely clinical concept was so prescient and penetrating that subsequent neuropathological and biochemical evidences were ordered along this axis to establish the nigra-central trinity of PD (dopamine depletion, nigral lesion with Lewy bodies: LBs)...
November 14, 2016: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/27859960/cognitive-phenotypes-in-parkinson-s-disease-differ-in-terms-of-brain-network-organization-and-connectivity
#17
Renaud Lopes, Christine Delmaire, Luc Defebvre, Anja J Moonen, Annelien A Duits, Paul Hofman, Albert F G Leentjens, Kathy Dujardin
Cognitive deficits are common in Parkinson's disease and we suspect that dysfunctions of connected brain regions can be the source of these deficits. The aim of the present study was to investigate changes in whole-brain intrinsic functional connectivity according to differences in cognitive profiles in Parkinson's disease. 119 participants were enrolled and divided into four groups according to their cognitive phenotypes (determined by a cluster analysis): (i) 31 cognitively intact patients (G1), (ii) 31 patients with only slight mental slowing (G2), (iii) 43 patients with mild to moderate deficits mainly in executive functions (G3), (iv) 14 patients with severe deficits in all cognitive domains (G4-5)...
November 17, 2016: Human Brain Mapping
https://www.readbyqxmd.com/read/27817760/a-process-evaluation-of-a-psychomotor-dance-therapy-intervention-dancin-for-behavior-change-in-dementia-attitudes-and-beliefs-of-participating-residents-and-staff
#18
Azucena Guzmán, Lisa Robinson, Lynn Rochester, Ian A James, Julian C Hughes
BACKGROUND: In a previous paper, we presented results from a 12-week study of a Psychomotor DANCe Therapy INtervention (DANCIN) based on Danzón Latin Ballroom that involves motor, emotional-affective, and cognitive domains, using a multiple-baseline single-case design in three care homes. This paper reports the results of a complementary process evaluation to elicit the attitudes and beliefs of home care staff, participating residents, and family members with the aim of refining the content of DANCIN in dementia care...
November 7, 2016: International Psychogeriatrics
https://www.readbyqxmd.com/read/27751631/examining-the-relationship-between-multidrug-resistant-organism-acquisition-and-exposure-to-antimicrobials-in-long-term-care-populations-a-review
#19
REVIEW
Michele L Shaffer, Erika M C D'Agata, Daniel Habtemariam, Susan L Mitchell
PURPOSE: Methodological approaches to examine the association between antimicrobial exposure and multidrug-resistant organism (MDRO) acquisition are complex. This report's objectives are to review approaches used in and findings of prior studies in the long-term care setting, illustrate how these challenges were addressed in a recently completed large prospective study, and discuss strategies for future studies. METHODS: Key design and analytic approaches used in studies conducted since 2000 examining the association between antimicrobial exposure and MDRO acquisition in the long-term care setting were reviewed...
November 2016: Annals of Epidemiology
https://www.readbyqxmd.com/read/27686075/bee-venom-ameliorates-cognitive-dysfunction-caused-by-neuroinflammation-in-an-animal-model-of-vascular-dementia
#20
Mudan Cai, Jun Hwan Lee, Eun Jin Yang
Vascular dementia (VaD) is caused by the reduction of blood supply by vessel occlusion and is characterized by progressive cognitive decline. VaD incidence has been growing due to the aging population, placing greater strain on social and economic resources. However, the pathological mechanisms underlying VaD remain unclear. Many studies have used the bilateral common carotid artery occlusion (BCCAO) animal model to investigate potential therapeutics for VaD. In this study, we investigated whether bee venom (BV) improves cognitive function and reduces neuroinflammation in the hippocampus of BCCAO animals...
September 29, 2016: Molecular Neurobiology
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