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https://www.readbyqxmd.com/read/28419875/falls-in-people-with-parkinson-s-disease-a-prospective-comparison-of-community-and-home-based-falls
#1
Robyn M Lamont, Meg E Morris, Hylton B Menz, Jennifer L McGinley, Sandra G Brauer
BACKGROUND: Falls are common and debilitating in people with Parkinson's disease (PD) and restrict participation in daily activities. Understanding circumstances of falls in the community and at home may assist clinicians to target therapy more effectively. OBJECTIVE: To compare the characteristics of community and home fallers and the circumstances that contribute to falls in people living with PD. METHODS: People with mild-moderately severe PD (n=196) used a daily falls diary and telephone hotline to report prospectively the occurrence, location and circumstances of falls over 14 months...
April 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28396703/characteristics-and-incidence-of-traumatic-brain-injury-in-older-adults-using-home-care-in-ontario-from-2003-2013
#2
Connor McGuire, Vicki L Kristman, Lynn Martin, Michel Bédard
OBJECTIVES: Describe the characteristics and determine the annual cumulative incidence of traumatic brain injury (TBI) in older adults receiving home care in Ontario from 2003 to 2013. METHODS: A retrospective cohort study of longitudinal data from the Ontario Association of Community Care Access Centers (N = 554,313). TBI, demographic variables, depression, neurological conditions, and recent falls were measured from the Resident Assessment Instrument-Home Care...
March 2017: Canadian Geriatrics Journal: CGJ
https://www.readbyqxmd.com/read/28380319/the-coefficient-of-friction-in-parkinson-s-disease-gait
#3
Ana Kleiner, M Galli, M Franceschini, M F De Pandis, F Stocchi, G Albertini, Ricardo Machado Leite de Barros
This study aimed to characterize the coefficient of friction (COF) curves of patients with Parkinson's disease (PD) during barefoot gait and to evaluate the relationships between this variable and functional scales. Twenty-two subjects with PD (ON phase of levodopa) and 22 healthy subjects participated in this study. The participants walked barefoot along a pathway that went over two force plates embedded in the floor of the data collection room. The instantaneous COF was calculated as the ratio between the horizontal and vertical components of the ground reaction forces...
January 2017: Functional Neurology
https://www.readbyqxmd.com/read/28375643/pimavanserin
#4
Kevin M Bozymski, Denise K Lowe, Kiersten M Pasternak, Travis L Gatesman, Ericka L Crouse
OBJECTIVE: To review the pharmacology, pharmacokinetics, efficacy, safety, and place in therapy of pimavanserin for the treatment of hallucinations and delusions of Parkinson's disease psychosis (PDP). DATA SOURCES: A comprehensive PubMed search (1966 to January 2017) was conducted using the search terms Parkinson's disease psychosis, hallucinations, delusions, pimavanserin, and ACP-103. Additional data were obtained from references of identified articles, governmental sources, manufacturer product labeling and website, and Clinicaltrials...
February 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28365858/sagittal-balance-is-correlated-with-parkinson-s-disease-clinical-parameters-an-overview-of-spinopelvic-alignment-on-175-consecutive-cases
#5
Luciano Bissolotti, Pedro Berjano, Paola Zuccher, Andrea Zenorini, Riccardo Buraschi, Jorge Hugo Villafañe, Stefano Negrini
PURPOSE: The aim of this study was to describe the disease-related sagittal balance changes in relation to the sacro-pelvic morphology of Parkinson's Disease patients with different duration of disease. METHODS: One hundred and seventy-five consecutive Parkinson's Disease (PD) patients (102 males, 73 females; age: 55-83 years) participated in the cross-sectional study. The clinical assessment included: Hoehn Yahr (H&Y) score; Tinetti score; plumb line (PL) distance from the spinous process of C7, L3 and S1 and kyphosis apex...
April 1, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28349412/evaluating-outcomes-for-older-patients-with-parkinson-s-disease-or-dementia-with-lewy-bodies-who-have-been-hospitalised-for-hip-fracture-surgery-potential-impact-of-drug-administration
#6
Marie Enemark, Mette Midttun, Kristian Winge
INTRODUCTION: People with Parkinson's disease (PD) are at risk of falling and have an increased risk of complications and prolonged recovery during hospitalisation. OBJECTIVE: The aim of this study was to investigate the rate of complications and recovery related to a hip fracture in patients with PD. METHODS: All patients with PD or dementia with Lewy bodies (DLB) and a hip fracture who were admitted from January 2013 through June 2014 (18 months) to the Department of Orthopaedics, Copenhagen University Hospital, Herlev, Denmark were evaluated...
March 27, 2017: Drugs & Aging
https://www.readbyqxmd.com/read/28342682/a-home-program-of-strength-training-movement-strategy-training-and-education-did-not-prevent-falls-in-people-with-parkinson-s-disease-a-randomised-trial
#7
Meg E Morris, Nicholas F Taylor, Jennifer Watts, Andrew Evans, Malcolm Horne, Peter Kempster, Mary Danoudis, Jennifer J McGinley, Clarissa Martin, Hylton B Menz
QUESTIONS: For people with idiopathic Parkinson's disease, does a 6-week, comprehensive, home exercise program reduce falls and disability and improve health-related quality of life? Is the program cost-effective? DESIGN: Randomised, controlled trial with concealed allocation and assessor blinding. PARTICIPANTS: One hundred and thirty-three community-dwelling adults with Parkinson's disease. INTERVENTION: The experimental group completed a 6-week home program comprising progressive resistance strength training, movement strategy training and falls education...
March 14, 2017: Journal of Physiotherapy
https://www.readbyqxmd.com/read/28342083/classification-of-advanced-stages-of-parkinson-s-disease-translation-into-stratified-treatments
#8
REVIEW
Rejko Krüger, Jochen Klucken, Daniel Weiss, Lars Tönges, Pierre Kolber, Stefan Unterecker, Michael Lorrain, Horst Baas, Thomas Müller, Peter Riederer
Advanced stages of Parkinson's disease (advPD) still impose a challenge in terms of classification and related stage-adapted treatment recommendations. Previous concepts that define advPD by certain milestones of motor disability apparently fall short in addressing the increasingly recognized complexity of motor and non-motor symptoms and do not allow to account for the clinical heterogeneity that require more personalized approaches. Therefore, deep phenotyping approaches are required to characterize the broad-scaled, continuous and multidimensional spectrum of disease-related motor and non-motor symptoms and their progression under real-life conditions...
March 24, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28341224/palliative-care-and-its-emerging-role-in-multiple-system-atrophy-and-progressive-supranuclear-palsy
#9
REVIEW
Louise Wiblin, Mark Lee, David Burn
Multiple System Atrophy (MSA) and Progressive Supranuclear Palsy (PSP) are sporadic, neurodegenerative conditions and belong to a group known as the atypical Parkinsonian disorders. The atypical Parkinsonian (AP) disorders have some features of idiopathic Parkinson's disease (PD) but often with poor or transient levodopa response [1], distinct symptom profiles, more rapid progression and reduced survival. They have significant symptom burden [2]. It is beginning to be appreciated that AP disorders not only carry a heavy symptom burden equivalent to that of patients with advanced cancer but that AP patients experience significant morbidity for an extended period of time...
January 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28330963/decrease-in-a%C3%AE-42-predicts-dopa-resistant-gait-progression-in-early-parkinson-disease
#10
Lynn Rochester, Brook Galna, Sue Lord, Alison J Yarnall, Rosie Morris, Gordon Duncan, Tien K Khoo, Brit Mollenhauer, David J Burn
OBJECTIVE: This prospective observational study investigates the role of CSF biomarkers in predicting progression of dopa-resistant gait impairments in Parkinson disease (PD) in the first 36 months from diagnosis. METHODS: Quantitative gait analysis was carried out longitudinally using an instrumented walkway (GAITRite) in 108 people with PD and 130 age-matched controls. A subgroup of 44 people with PD underwent lumbar puncture from which a battery of CSF biomarkers was measured: β-amyloid 1-42 and 1-40 (Aβ42 and Aβ40), total and phosphorylated tau protein (t-tau/p-tau181), and α-synuclein (αSyn)...
March 22, 2017: Neurology
https://www.readbyqxmd.com/read/28329183/remote-traumatic-brain-injury-is-associated-with-motor-dysfunction-in-older-military-veterans
#11
Raquel C Gardner, Carrie B Peltz, Kimbra Kenney, Kenneth E Covinsky, Ramon Diaz-Arrastia, Kristine Yaffe
Background: Traumatic brain injury (TBI) has been identified as a risk factor for Parkinson's disease (PD). Motor dysfunction among TBI-exposed elders without PD has not been well characterized. We sought to determine whether remote TBI is a risk factor for motor dysfunction on exam and functionally relevant motor dysfunction in day-to-day life among independently living elders without PD. Methods: This is a cross-sectional cohort study of independently living retired military veterans aged 50 or older with (n = 78) and without (n = 85) prior TBI-all without diagnosed PD...
January 20, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28326165/neurochemical-and-motor-changes-in-mice-with-combined-mutations-linked-to-parkinson-s-disease
#12
Xiang Bai, Margaret Chia-Ying Wey, Paul Anthony Martinez, Chao Shi, Elizabeth Fernandez, Randy Strong
Considerable evidence suggests that oxidative stress plays a role in the pathogenesis of Parkinson's disease (PD), the most prevalent neurodegenerative movement disorder. Reduced expression of aldehyde dehydrogenase-1 (ALDH1) and glutathione peroxidase-1 (GPX1), enzymes that function to detoxify aldehydes and hydroxyl radicals, respectively, has been reported in the substantia nigra of patients who died with PD. To determine whether deficiency in these two genes contributes to the pathogenesis of PD, mice were generated with homozygous null mutations of both Aldh1a1 (the murine homolog of ALDH1) and Gpx1 genes [knockout (KO) mice]...
2017: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/28279773/deep-brain-stimulation-of-pedunculopontine-nucleus-for-postural-instability-and-gait-disorder-after-parkinson-s-disease-a-meta-analysis-of-individual-patient-data
#13
Jia-Wei Wang, Yu-Qing Zhang, Xiao-Hua Zhang, Yun-Peng Wang, Ji-Ping Li, Yong-Jie Li
BACKGROUND: Postural instability and gait disorder(PIGD) in Parkinson's disease (PD) have been a great challenge in the clinical practice since PIGD is closely linked to major morbidity and mortality in PD. Pedunculopontine nucleus (PPN) has been considered as a potential promising target for deep brain stimulation (DBS) in the treatment of PIGD. Thus, this meta-analysis of individual patient data (IPD) was performed to assess the effects of PPN DBS on PIGD in PD patients and explore the factors predicting good outcome...
March 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28275046/self-reported-sleep-disturbance-and-incidence-of-dementia-in-ageing-men
#14
Maria K Luojus, Soili M Lehto, Tommi Tolmunen, Anna-Katharine Brem, Eija Lönnroos, Jussi Kauhanen
BACKGROUND: Sleep disturbance is suggested to contribute to the development of dementia. However, prospective longitudinal data from middle-aged populations are scarce. METHODS: We investigated a population-based sample of 2386 men aged 42-62 years at baseline during 1984-1989. Participants having a history of mental illnesses, psychiatric medication, Parkinson's disease or dementia within 2 years after baseline (n=296) were excluded. Difficulty falling asleep or maintaining sleep, sleep duration and daytime tiredness were enquired...
April 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28268634/detection-of-gait-initiation-failure-in-parkinson-s-disease-patients-using-eeg-signals
#15
Quynh Tran Ly, A M Ardi Handojoseno, Moran Gilat, Nghia Nguyen, Rifai Chai, Yvonne Tran, Simon J G Lewis, Hung T Nguyen
Gait Initiation Failure (GIF) is one of the most disabling gait disturbances seen in advanced Parkinson's disease (PD). Gait Initiation is a complex motor task that requires motor and cognitive processing to enable the correct selection, timing and scaling of movement. Failure to initiate the first step often precipitates falls and leads to significant morbidity. However, the brain mechanisms underlying GIF remain unknown. This study utilized an ambulatory electroencephalography (EEG) technique to investigate the brain dynamic changes underlying GIF and aims to detect the occurrence of GIF in four PD patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268412/towards-holistic-free-living-assessment-in-parkinson-s-disease-unification-of-gait-and-fall-algorithms-with-a-single-accelerometer
#16
Alan Godfrey, Alan Bourke, Silvia Del Din, Rosie Morris, Aodhan Hickey, Jorunn L Helbostad, Lynn Rochester
Technological developments have seen the miniaturization of sensors, small enough to be embedded in wearable devices facilitating unobtrusive and longitudinal monitoring in free-living environments. Concurrently, the advances in algorithms have been ad-hoc and fragmented. To advance the mainstream use of wearable technology and improved functionality of algorithms all methodologies must be unified and robustly tested within controlled and free-living conditions. Here we present and unify a (i) gait segmentation and analysis algorithm and (ii) a fall detection algorithm...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268275/reinforcement-learning-for-stabilizing-an-inverted-pendulum-naturally-leads-to-intermittent-feedback-control-as-in-human-quiet-standing
#17
Kenjiro Michimoto, Yasuyuki Suzuki, Ken Kiyono, Yasushi Kobayashi, Pietro Morasso, Taishin Nomura
Intermittent feedback control for stabilizing human upright stance is a promising strategy, alternative to the standard time-continuous stiffness control. Here we show that such an intermittent controller can be established naturally through reinforcement learning. To this end, we used a single inverted pendulum model of the upright posture and a very simple reward function that gives a certain amount of punishments when the inverted pendulum falls or changes its position in the state space. We found that the acquired feedback controller exhibits hallmarks of the intermittent feedback control strategy, namely the action of the feedback controller is switched-off intermittently when the state of the pendulum is located near the stable manifold of the unstable saddle-type upright equilibrium of the inverted pendulum with no active control: this action provides an opportunity to exploit transiently converging dynamics toward the unstable upright position with no help of the active feedback control...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267762/impaired-perception-of-surface-tilt-in-progressive-supranuclear-palsy
#18
Marian L Dale, Fay B Horak, W Geoffrey Wright, Bernadette M Schoneburg, John G Nutt, Martina Mancini
INTRODUCTION: Progressive supranuclear palsy (PSP) is characterized by early postural instability and backward falls. The mechanisms underlying backward postural instability in PSP are not understood. The aim of this study was to test the hypothesis that postural instability in PSP is a result of dysfunction in the perception of postural verticality. METHODS: We gathered posturography data on 12 subjects with PSP to compare with 12 subjects with idiopathic Parkinson's Disease (PD) and 12 healthy subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28264087/precipitous-deterioration-of-motor-function-cognition-and-behavior
#19
Mireya Fernández-Fournier, David C Perry, Maria Carmela Tartaglia, Mary de May, Adam Boxer, Giovanni Coppola, Chadwick W Christine, Eric J Huang, William W Seeley, Bruce L Miller, Steven J DeArmond, Lea T Grinberg, Michael D Geschwind
A 72-year-old woman developed new-onset depression, sustained an unexplained fall, and started walking cautiously. After 1 year, her depression resolved but she developed a dry cough. One year later, she experienced a more rapid decline in her gait with parkinsonism, visual difficulties with restricted vertical gaze, slowed horizontal and vertical saccades, dysphagia, apathy, and progressive cognitive decline, which led to her death 2 years later. The differential diagnosis, neuroimaging, and pathological findings are discussed, as well as their public health implications...
March 6, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28263926/dopamine-depletion-impairs-gait-automaticity-by-altering-cortico-striatal-and-cerebellar-processing-in-parkinson-s-disease
#20
Moran Gilat, Peter T Bell, Kaylena A Ehgoetz Martens, Matthew J Georgiades, Julie M Hall, Courtney C Walton, Simon J G Lewis, James M Shine
Impairments in motor automaticity cause patients with Parkinson's disease to rely on attentional resources during gait, resulting in greater motor variability and a higher risk of falls. Although dopaminergic circuitry is known to play an important role in motor automaticity, little evidence exists on the neural mechanisms underlying the breakdown of locomotor automaticity in Parkinson's disease. This impedes clinical management and is in great part due to mobility restrictions that accompany the neuroimaging of gait...
March 3, 2017: NeuroImage
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