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Journal of Parkinson's Disease

George A Heckman, Alexander M Crizzle, Jonathen Chen, Tamara Pringsheim, Nathalie Jette, Marie-Jeanne Kergoat, Leslie Eckel, John P Hirdes
BACKGROUND: Patients with Parkinson's disease (PD) and/or Parkinsonism are affected by a complex burden of comorbidity. Many ultimately require institutional care, where they may be subject to the application of physical restraints or the prescription of antipsychotic medications, making them more vulnerable to adverse outcomes. OBJECTIVES: The objectives of this paper are to: 1) describe the clinical complexity of older institutionalized persons with PD; and 2) examine patterns and predictors of restraint use and prescription of antipsychotics in this population...
September 29, 2016: Journal of Parkinson's Disease
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October 19, 2016: Journal of Parkinson's Disease
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
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
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
Constance Rabel, Floriane Le Goff, Romain Lefaucheur, Gulden Ozel, Damien Fetter, Audrey Rouillé, David Maltête
BACKGROUND: Previous studies found a poor association between parkinsonian patient's reported subjective improvement after commencing dopaminergic treatment and improvements in objective measures of motor impairment by clinician. OBJECTIVE: To compare PD patient's subjective perceived motor improvement after acute levodopa challenge test with objective motor improvement assessed by the clinician using the UPDRS part III. To analyze clinical characteristics, i.e...
October 19, 2016: Journal of Parkinson's Disease
Gustavo Fernández-Pajarín, Ángel Sesar, Begoña Ares, Alfonso Castro
BACKGROUND: There are not many data about the beneficial effect of nocturnal continuous subcutaneous apomorphine infusion (NCSAI) over sleep disturbances in advanced Parkinson's disease (PD). OBJECTIVE: Evaluate the effect of the NCSAI in sleeping problems and insomnia due to nocturnal hypokinesia inadvanced PD. METHODS: We assessed 17 advanced PD patients with several sleep disturbances measured by SCOPA-SLEEP and PDSS scales. All the patients were on apomorphine infusion during daytime...
October 19, 2016: Journal of Parkinson's Disease
Thomas Gasser
Recent discoveries with respect to the genetic and molecular basis of Parkinson's disease have led to an increasing recognition of the etiologic heterogeneity of the disorder. As in other complex diseases, it is hoped that this knowledge will allow the identification of novel therapeutic targets that will eventually lead to a more efficient treatment, based on the patient's individual genetic predispositions.
October 19, 2016: Journal of Parkinson's Disease
Alaj Hommel, M J Faber, N J Weerkamp, J G van Dijk, B R Bloem, R T Koopmans
BACKGROUND: Orthostatic hypotension (OH) in Parkinson's disease (PD) is a common non-motor sign that can be hard to recognize and treat. OH prevalence and treatment in institutionalized PD-patients remains unknown. OBJECTIVE: The aim of this study was to explore the prevalence and prescribed treatments of OH in institutionalized patients with PD. METHOD: A cross-sectional study of nursing homes in the south-east of the Netherlands identified 64 residents with PD (inclusion criteria: MMSE >18)...
October 19, 2016: Journal of Parkinson's Disease
Bróna Kelly, Catherine Blake, Olive Lennon
BACKGROUND: The rate of people with Parkinson's disease (PD) is predicted to double by 2030 resulting in an even greater burden to an already struggling Irish health care system. There is a paucity of information regarding hospital utilisation among the PD population in an Irish context. OBJECTIVE: To examine trends of acute hospital in-patient admissions of patients admitted with a secondary diagnosis of PD between 2009 and 2012 in Ireland. METHOD: Data concerning patients, aged over and under 65 years with a previously existing diagnosis of Parkinson's Disease were requested from the HIPE database for the years 2009-2012...
October 19, 2016: Journal of Parkinson's Disease
Yasuhiro Tanaka, Takashi Tsuboi, Hirohisa Watanabe, Yasukazu Kajita, Daisuke Nakatsubo, Yasushi Fujimoto, Reiko Ohdake, Mizuki Ito, Naoki Atsuta, Masahiko Yamamoto, Toshihiko Wakabayashi, Masahisa Katsuno, Gen Sobue
BACKGROUND: Voice and speech disorders are one of the most important issues after subthalamic nucleus deep brain stimulation (STN-DBS) in Parkinson's disease (PD) patients. However, articulation features in this patient population remain unclear. OBJECTIVE: We studied the articulation features of PD patients with STN-DBS. METHODS: Participants were 56 PD patients treated with STN-DBS (STN-DBS group) and 41 patients treated only with medical therapy (medical-therapy-alone group)...
October 19, 2016: Journal of Parkinson's Disease
Stuart Isaacson, Holly A Shill, Steven Vernino, Adam Ziemann, Gerald J Rowse
BACKGROUND: Neurogenic orthostatic hypotension (nOH) is associated with insufficient norepinephrine release in response to postural change. OBJECTIVE: The objective of this study was to evaluate the long-term safety and durability of efficacy of the norepinephrine precursor droxidopa in patients with symptomatic nOH. METHODS: This multinational study consisted of 3 sequential phases: a 3-month open-label droxidopa treatment phase followed by a 2-week double-blind, placebo-controlled withdrawal phase, and a 9-month open-label extension phase in which all patients received droxidopa...
October 19, 2016: Journal of Parkinson's Disease
Michelle Braybrook, Sam O'Connor, Philip Churchward, Thushara Perera, Parisa Farzanehfar, Malcolm Horne
BACKGROUND: While tremor in Parkinson's Disease (PD) can be characterised in the consulting room, its relationship to treatment and fluctuations can be clinically helpful. OBJECTIVE: To develop an ambulatory assessment of tremor of PD. METHODS: Accelerometry data was collected using the Parkinson's KinetiGraph System (PKG, Global Kinetics). An algorithm was developed, which could successfully distinguish been subjects with a resting or postural tremor that involved the wrist whose frequency was greater than 3 Hz...
October 19, 2016: Journal of Parkinson's Disease
Hee Jin Kim, Beomseok Jeon, Sun Ju Chung
The practice of complementary and alternative medicine (CAM) is not, at present, considered an integral part of conventional medicine. As the popularity of CAM grows and access to information about CAM increases through the media and internet where CAMs are often promoted, patients are at risk of exposure unvalidated information. Therefore, there is a need for physicians to examine objectively the efficacy and safety of CAM, compare it with current medications, and become actively involved in the CAM treatment with patients...
October 19, 2016: Journal of Parkinson's Disease
Thomas G Beach, Anne-Gaëlle Corbillé, Franck Letournel, Jeffrey H Kordower, Thomas Kremer, David G Munoz, Anthony Intorcia, Joseph Hentz, Charles H Adler, Lucia I Sue, Jessica Walker, Geidy Serrano, Pascal Derkinderen
BACKGROUND: Conflicting results from studies of Lewy-type α-synucleinopathy (LTS) in colonic biopsies of subjects with Parkinson's disease (PD) prompted a two-part multicenter assessment. The first assessment, now published (Acta Neuropathol Commun 4 : 35, 2016), examined archived colonic biopsies and found that none of the tested methods was adequately sensitive or specific. OBJECTIVE: As the amount of nervous tissue in typical colonic biopsies may be insufficient, and the clinical diagnosis of PD not completely accurate, the objective of the current study was to use instead full-thickness sections of sigmoid colon from autopsy-proven PD and normal subjects...
October 19, 2016: Journal of Parkinson's Disease
Alexandre Mendes, Alexandra Gonçalves, Nuno Vila-Chã, Margarida Calejo, Inês Moreira, Joana Fernandes, Joana Damásio, Armando Teixeira-Pinto, Paul Krack, António Bastos Lima, Sara Cavaco
BACKGROUND: The rate of Parkinson's disease (PD) progression varies widely between patients. Current knowledge does not allow to accurately predict the evolution of symptoms in a given individual over time. OBJECTIVES: To develop regression-based models of PD progression and to explore its predictive value in a three-year follow-up. METHODS: At baseline, 300 consecutive PD patients were assessed using the Unified Parkinson's Disease Rating Scale (UPDRS) - subscales II and III, Hoehn & Yahr (H&Y) and Schwab and England Independence Scale (S&E); and the Freezing of Gait Questionnaire (FOG-Q)...
October 19, 2016: Journal of Parkinson's Disease
Håkan Nero, Martin Benka Wallén, Erika Franzén, David Conradsson, Agneta Ståhle, Maria Hagströmer
BACKGROUND: The desirable effects of physical activity in individuals with Parkinson's disease are well-known, although according to results from previous studies factors associated with objectively assessed physical activity are not fully investigated. OBJECTIVE: To investigate demographic, disease-related and mobility-related factors that associate with objectively measured physical activity, in a sample of older adults with mild to moderate Parkinson's disease...
October 19, 2016: Journal of Parkinson's Disease
Yoon-Sang Oh, Ji Ho Choi, Do-Young Kwon
BACKGROUND: Scans without evidence of dopaminergic deficit (SWEDD), a heterogeneous disorder, refers to patients with normal dopamine transporter scan presumed to have Parkinson's disease (PD). Although clinically hard to discriminate, it is important to differentiate SWEDD from PD in the early stage of disease in practice. Olfactory dysfunction is a sensitive biomarker of neurodegeneration. A considerable number of SWEDD patients show abnormal olfaction. We investigated the olfaction and non-motor symptoms in SWEDD, PD, and healthy controls...
October 19, 2016: Journal of Parkinson's Disease
Nir Giladi, Anthony P Nicholas, Mahnaz Asgharnejad, Elisabeth Dohin, Franz Woltering, Lars Bauer, Werner Poewe
BACKGROUND: The efficacy of rotigotine has been demonstrated in studies of patients with early (i.e. not receiving levodopa) and advanced (i.e. not adequately controlled on levodopa; average 2.5 h/day in 'off' state) Parkinson's disease (PD). OBJECTIVE: To further investigate the efficacy of rotigotine transdermal patch across different stages of PD symptom severity and functional disability, according to baseline Hoehn and Yahr (HY) staging. METHODS: Post hoc analysis of six placebo-controlled studies of rotigotine in patients with early PD (SP506, SP512, SP513; rotigotine ≤8 mg/24 h) or advanced-PD (CLEOPATRA-PD, PREFER, SP921; rotigotine ≤16 mg/24 h)...
October 19, 2016: Journal of Parkinson's Disease
Hamad Alzahrani, Angelo Antonini, Annalena Venneri
BACKGROUND: Apathy is one of the most common neuropsychiatric symptoms in Parkinson's disease (PD). Few studies have investigated the cognitive and neuroanatomical correlates of apathy in PD, and those which have done so have not controlled for the presence of other neuropsychiatric comorbidities. OBJECTIVE: To explore the cognitive and neuroanatomical correlates of apathy in PD at a mild disease stage. METHODS: Sixty-five PD patients and 24 healthy controls participated in this study...
October 19, 2016: Journal of Parkinson's Disease
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