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Journal of Parkinson's Disease

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https://www.readbyqxmd.com/read/28106571/the-identification-of-alpha-synuclein-as%C3%A2-the%C3%A2-first-parkinson-disease-gene
#1
Robert L Nussbaum
No abstract text is available yet for this article.
January 17, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28106570/replacing-dopamine-neurons-in%C3%A2-parkinson-s-disease-how-did-it-happen
#2
Anders Björklund, Olle Lindvall
No abstract text is available yet for this article.
January 17, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28106569/cerebellar-volume-and-executive-function-in-parkinson-disease-with-and-without-freezing-of-gait
#3
Peter S Myers, Marie E McNeely, Jonathan M Koller, Gammon M Earhart, Meghan C Campbell
BACKGROUND: Freezing of gait (FOG) affects approximately 50% of people with Parkinson Disease (PD), impacting quality of life and placing financial and emotional strain on the individual and caregivers. People with PD and FOG have similar deficits in motor adaptation and cognition as individuals with cerebellar lesions, indicating the cerebellum may play a role in FOG. OBJECTIVE: To examine potential differences in cerebellar volumes and their relationships with cognition between PD with (FOG+) and without FOG (FOG-)...
January 17, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28106568/physical-therapy-versus-a-general-exercise-programme-in-patients-with-hoehn-yahr-stage-ii-parkinson-s-disease-a%C3%A2-randomized-controlled-trial
#4
Savina Dipasquale, Roberto Meroni, Francesco Sasanelli, Ivan Messineo, Daniele Piscitelli, Cecilia Perin, Cesare Maria Cornaggia, Cesare G Cerri
BACKGROUND AND OBJECTIVE: Several studies suggest that general exercise (GE) and physical therapy programmes (PT) improve the outcomes of Parkinson's disease (PD) patients; however, the available data do not allow a determination of which treatment is more effective. Our study aims to compare the effects of physiotherapy and general exercise in Parkinson's disease. METHODS: Design and setting: Randomized controlled trial -general hospital outpatient clinic. The participants were patients with Hoehn Yahr stage II PD...
January 17, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28106567/fractional-anisotropy-and-mean-diffusion-as-measures-of-dopaminergic-function-in-parkinson-s-disease-challenging-results
#5
Niklas Lenfeldt, Johan Eriksson, Björn Åström, Lars Forsgren, Susanna Jakobson
BACKGROUND: Diffusion tensor imaging (DTI) has been purported as an imaging technique to assess dopaminergic degeneration in Parkinson's disease. OBJECTIVE: To test if fractional anisotropy (FA) and mean diffusion (MD) in the basal ganglia as measured by DTI correlates with dopaminergic function as measured by dopamine transporter (DAT) and dopamine D2-receptor (D2R) SPECT. METHODS: One-hundred and eleven patients with Parkinson's disease (71±10 years) and thirty-one controls (68±7 years) performed DTI, DAT and D2R SPECT at baseline and four follow-ups (1-year: 89 patients/zero controls; 3-year: 72/11; 5-year: 48/17; and 8-year: 13/13)...
January 17, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28106566/cerebral-amyloid-burden-and-hoehn-and-yahr-stage-3-scoring-in-parkinson-disease
#6
Vikas Kotagal, Nicolaas I Bohnen, Martijn L T M Müller, Kirk A Frey, Roger L Albin
BACKGROUND: Progression to Hoehn and Yahr (HY) stage 3 marks the transition to advanced disease staging and disability in Parkinson disease (PD). OBJECTIVE/METHODS: We conducted a case-control study of 36 PD subjects at HY stage 2.5 or 3, with groups matched for gender, age, and disease duration. Positron Emission tomography (PET) imaging included dihydrotetrabenazine [11C]DTBZ and Pittsburgh Compound B [11C]PiB. RESULTS: Subjects with HY 2...
January 17, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28035939/could-mao-b-inhibitor-withdrawal-rather-than-nilotinib-benefit-explain-the-dopamine-metabolite-increase-in-parkinsonian-study-subjects
#7
Michael A Schwarzschild
No abstract text is available yet for this article.
December 23, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911344/patient-perspectives-on-deep-brain-stimulation-clinical-research-in-early-stage-parkinson-s-disease
#8
Lauren Heusinkveld, Mallory Hacker, Maxim Turchan, Madelyn Bollig, Christina Tamargo, William Fisher, Lauren McLaughlin, Adria Martig, David Charles
The FDA approved a multicenter, double-blind, Phase III, pivotal trial testing deep brain stimulation in 280 people with very early stage Parkinson's disease (PD; IDE#G050016). In partnership with The Michael J. Fox Foundation for Parkinson's Research, we conducted a survey to investigate motivating factors, barriers, and gender differences for participation in a trial testing DBS in early PD. The majority of survey respondents (72%) indicated they would consider learning more about participating. Men and women with early PD are likely to consider enrolling in trials of invasive therapies that may slow symptom progression and help future patients...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911343/pink1-parkin-and-mitochondrial-quality-control-what-can-we-learn-about-parkinson-s-disease-pathobiology
#9
Dominika Truban, Xu Hou, Thomas R Caulfield, Fabienne C Fiesel, Wolfdieter Springer
The first clinical description of Parkinson's disease (PD) will embrace its two century anniversary in 2017. For the past 30 years, mitochondrial dysfunction has been hypothesized to play a central role in the pathobiology of this devastating neurodegenerative disease. The identifications of mutations in genes encoding PINK1 (PTEN-induced kinase 1) and Parkin (E3 ubiquitin ligase) in familial PD and their functional association with mitochondrial quality control provided further support to this hypothesis. Recent research focused mainly on their key involvement in the clearance of damaged mitochondria, a process known as mitophagy...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911342/impulsive-and-compulsive-behaviors-in%C3%A2-parkinson-s-disease-the-norwegian-parkwest-study
#10
Aleksander H Erga, Guido Alves, Jan Petter Larsen, Ole Bj Rn Tysnes, Kenn Freddy Pedersen
BACKGROUND: Impulsive and compulsive behaviors (ICBs) are frequent in Parkinson's disease (PD), but data from population-based cohorts is lacking. OBJECTIVES: To determine the frequency and associated demographic, clinical, neuropsychiatric and cognitive features of ICBs in a population-based PD cohort. METHODS: This cross-sectional study included 125 patients with PD and 159 age- and gender-matched normal controls recruited from the Norwegian ParkWest study...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911341/longer-duration-of-mao-b-inhibitor-exposure-is-associated-with-less-clinical-decline-in-parkinson-s-disease-an%C3%A2-analysis%C3%A2-of%C3%A2-net-pd-ls1
#11
Robert A Hauser, Ruosha Li, Adriana Pérez, Xuehan Ren, Dan Weintraub, Jordan Elm, John L Goudreau, John C Morgan, John Y Fang, Michael J Aminoff, Chadwick W Christine, Rohit Dhall, Chizoba C Umeh, James T Boyd, Natividad Stover, Maureen Leehey, Richard M Zweig, Anthony P Nicholas, Ivan Bodis-Wollner, Allison Willis, Karl Kieburtz, Barbara C Tilley
BACKGROUND: Monoamine oxidase type B (MAO-B) inhibitors exhibit neuroprotective effects in preclinical models of PD but clinical trials have failed to convincingly demonstrate disease modifying benefits in PD patients. OBJECTIVE: To perform a secondary analysis of NET-PD LS1 to determine if longer duration of MAO-B inhibitor exposure was associated with less clinical decline. METHODS: The primary outcome measure was the Global Outcome (GO), comprised of 5 measures: change from baseline in the Schwab and England (ADL) scale, the 39-item Parkinson's Disease Questionnaire (PDQ-39), the UPDRS Ambulatory Capacity Scale, the Symbol Digit Modalities Test, and the most recent Modified Rankin Scale...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911340/dementia-predictors-in-parkinson-disease-a-validation-study
#12
Julius Bm Anang, Takashi Nomura, Silvia Rios Romenets, Kenji Nakashima, Jean-Francois Gagnon, Ronald B Postuma
In a prospective study, we recently discovered 8 clinical predictors of dementia in Parkinson's disease. Here, we validate these dementia predictors using two additional prospective cohorts (n = 134). After a 3.6-year follow-up, 35/134 developed dementia (7.2% per year). When confirming individual variables, 5/8 were significantly associated with dementia in the validation cohort. These included age, male sex, baseline RBD, orthostatic hypotension, and MCI. Bilateral onset, hallucinations and falls/freezing did not significantly predict dementia; however, point estimates of OR were all >1...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911321/the-effects-of-meditation-on-grey-matter-atrophy-and-neurodegeneration-a%C3%A2-systematic-review
#13
Nicole Last, Emily Tufts, Leslie E Auger
The present systematic review is based on the premise that a variety of neurodegenerative diseases are accompanied by grey matter atrophy in the brain and meditation may impact this. Given that age is a major risk factor for many of these progressive and neurodegenerative diseases and that the percentage of the population over the age of 65 is quickly increasing, there is an obvious need for prompt treatment and prevention advances in research. As there is currently no cure for Alzheimer's disease and other neurodegenerative diseases, many are seeking non-pharmacological treatment options in attempts to offset the disease-related cognitive and functional declines...
November 26, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27858720/challenges-of-improving-patient-centred-care-in-parkinson-s-disease
#14
Soania Mathur, Leah Mursaleen, Jon Stamford, Steve DeWitte, Israel Robledo, Tom Isaacs
BACKGROUND: Parkinson's disease is a neurodegenerative condition with a complex pattern of motor and non-motor symptoms. Of several clinical scales used to measure patient experience few are delivered by patients themselves. OBJECTIVE: The present study reports the results of an online survey to establish (a) factors that most influence QoL (quality of life) for people with Parkinson's and (b) areas where self-monitoring may help. METHODS: A 27 question online survey (using Survey Monkey) was developed by The Cure Parkinson's Trust, comprising four main sections (demographics, monitoring, symptoms and communication)...
November 14, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27858719/regular-exercise-quality-of-life-and-mobility-in-parkinson-s-disease-a%C3%A2-longitudinal-analysis-of-national-parkinson-foundation-quality-improvement-initiative-data
#15
Miriam R Rafferty, Peter N Schmidt, Sheng T Luo, Kan Li, Connie Marras, Thomas L Davis, Mark Guttman, Fernando Cubillos, Tanya Simuni
BACKGROUND: Research-based exercise interventions improve health-related quality of life (HRQL) and mobility in people with Parkinson's disease (PD). OBJECTIVE: To examine whether exercise habits were associated with changes in HRQL and mobility over two years. METHODS: We identified a cohort of National Parkinson Foundation Quality Improvement Initiative (NPF-QII) participants with three visits. HRQL and mobility were measured with the Parkinson's Disease Questionnaire (PDQ-39) and Timed Up and Go (TUG)...
November 14, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27792016/epigenetic-biomarkers-for-parkinson-s-disease-from-diagnostics-to-therapeutics
#16
Jennifer L Jakubowski, Viviane Labrie
Parkinson's disease (PD) is a prevalent neurodegenerative illness that is often diagnosed after significant pathology and neuronal cell loss has occurred. Biomarkers of PD are greatly needed for early diagnosis, as well as for the prediction of disease progression and treatment outcome. In this regard, the epigenome, which is partially dynamic, holds considerable promise for the development of molecular biomarkers for PD. Epigenetic marks are modified by both DNA sequence and environmental factors associated with PD, and such marks could serve as a unifying predictor of at-risk individuals...
October 25, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27768000/author-index-volume-6-2016
#17
(no author information available yet)
No abstract text is available yet for this article.
October 19, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27662333/tremor-frequency-assessment-by-iphone%C3%A2-applications-correlation-with-emg-analysis
#18
Rui Araújo, Miguel Tábuas-Pereira, Luciano Almendra, Joana Ribeiro, Marta Arenga, Luis Negrão, Anabela Matos, Ana Morgadinho, Cristina Januário
Tremor frequency analysis is usually performed by EMG studies but accelerometers are progressively being more used. The iPhone® contains an accelerometer and many applications claim to be capable of measuring tremor frequency. We tested three applications in twenty-two patients with a diagnosis of PD, ET and Holmes' tremor. EMG needle assessment as well as accelerometry was performed at the same time. There was very strong correlation (Pearson >0.8, p < 0.001) between the three applications, the EMG needle and the accelerometry...
October 19, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27662332/muscarinic-m1-receptor-coupling-to-g-protein-is-intact-in-parkinson-s-disease-dementia
#19
Jasinda H Lee, Paul T Francis, Clive G Ballard, Dag Aarsland, Raj N Kalaria, Peter T-H Wong, Christopher P Chen, Mitchell K P Lai
BACKGROUND: Postsynaptic cholinergic deficits, including reduced cortical muscarinic M1 receptor coupling to G-proteins, are neurochemical findings postulated to underlie the limited efficacy of presynaptically-targeted cholinergic replacement therapies in Alzheimer's disease (AD). While the loss of M1-G-protein coupling has been associated with β-amyloid (Aβ) burden in AD, the status of M1 coupling to G-proteins in Parkinson's disease-related or mixed dementias is unclear. OBJECTIVE: To test the hypothesis that M1 receptor uncoupling is correlated with Aβ burden, we aimed to study muscarinic M1 neurochemical parameters in neurodegenerative dementias characterized by low and high Aβ loads...
October 19, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27662331/the-practicalities-of-assessing-freezing-of%C3%A2-gait
#20
Claudia Barthel, Elizabeth Mallia, Bettina Debû, Bastiaan R Bloem, Murielle Ursulla Ferraye
BACKGROUND: Freezing of gait (FOG) is a mysterious, complex and debilitating phenomenon in Parkinson's disease. Adequate assessment is a pre-requisite for managing FOG, as well as for assigning participants in FOG research. The episodic nature of FOG, as well as its multiple clinical expressions make its assessment challenging. OBJECTIVE: To highlight the available assessment tools and to provide practical, experience-based recommendations for reliable assessment of FOG...
October 19, 2016: Journal of Parkinson's Disease
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