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https://www.readbyqxmd.com/read/29777524/mercury-involvement-in-neuronal-damage-and-in-neurodegenerative-diseases
#1
REVIEW
Veronica Lanza Cariccio, Annalisa Samà, Placido Bramanti, Emanuela Mazzon
Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and multiple sclerosis are characterized by a chronic and selective process of neuronal cell death. Although the causes of neurodegenerative diseases remain still unknown, it is now a well-established idea that more factors, such as genetic, endogenous, and environmental, are involved. Among environmental causes, the accumulation of mercury, a heavy metal considered a toxic agent, was largely studied as a probable factor involved in neurodegenerative disease course...
May 18, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29776864/putaminal-dopamine-depletion-in-de-novo-parkinson-s-disease-predicts-future-development-of-wearing-off
#2
Su Jin Chung, Yoonju Lee, Jungsu S Oh, Jae Seung Kim, Phil Hyu Lee, Young H Sohn
INTRODUCTION: The present study aimed to investigate whether the level of presynaptic dopamine neuronal loss predicts future development of wearing-off in de novo Parkinson's disease. METHODS: This retrospective cohort study included a total of 342 non-demented patients with de novo Parkinson's disease who underwent dopamine transporter positron emission tomography scans at their initial evaluation and received dopaminergic medications for 24 months or longer. Onset of wearing-off was determined based on patients' medical records at their outpatient clinic visits every 3-6 months...
May 10, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29774765/-staying-safe-a-narrative-review-of-falls-prevention-in-people-with-parkinson-s-pdsafe
#3
Sophia Hulbert, Lynn Rochester, Alice Nieuwboer, Vicki Goodwin, Carolyn Fitton, Kim Chivers-Seymour, Ann Ashburn
BACKGROUND: Parkinson's disease demonstrates a spectrum of motor and non-motor symptoms. Falling is common and disabling. Current medical management shows minimal impact to reduce falls or fall-related risk factors, such as deficits in gait, strength, and postural instability. Despite evidence supporting rehabilitation in reducing fall risk factors, the most appropriate intervention to reduce overall fall rate remains inconclusive. This article aims to 1) synthesise current evidence and conceptual models of falls rehabilitation in Parkinson's in a narrative review; and based on this evidence, 2) introduce the treatment protocol used in the falls prevention and multi-centre clinical trial "PDSAFE"...
May 18, 2018: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29773814/melanopsin-mediated-pupil-function-is-impaired-in-parkinson-s-disease
#4
Daniel S Joyce, Beatrix Feigl, Graham Kerr, Luisa Roeder, Andrew J Zele
Parkinson's disease (PD) is characterised by non-motor symptoms including sleep and circadian disruption. Melanopsin-expressing intrinsically photosensitive Retinal Ganglion Cells (ipRGC) transmit light signals to brain areas controlling circadian rhythms and the pupil light reflex. To determine if non-motor symptoms observed in PD are linked to ipRGC dysfunction, we evaluated melanopsin and rod/cone contributions to the pupil response in medicated participants with PD (n = 17) and controls (n = 12)...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29770251/review-of-the-neurological-benefits-of-phytocannabinoids
#5
REVIEW
Joseph Maroon, Jeff Bost
Background: Numerous physical, psychological, and emotional benefits have been attributed to marijuana since its first reported use in 2,600 BC in a Chinese pharmacopoeia. The phytocannabinoids, cannabidiol (CBD), and delta-9-tetrahydrocannabinol (Δ9-THC) are the most studied extracts from cannabis sativa subspecies hemp and marijuana. CBD and Δ9-THC interact uniquely with the endocannabinoid system (ECS). Through direct and indirect actions, intrinsic endocannabinoids and plant-based phytocannabinoids modulate and influence a variety of physiological systems influenced by the ECS...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29767379/individual-cognitive-change-after-dbs-surgery-in-parkinson-s-disease-patients-using-reliable-change-index-methodology
#6
Thomas Foki, Daniela Hitzl, Walter Pirker, Klaus Novak, Gisela Pusswald, Johann Lehrner
Long-term therapy of Parkinson's disease (PD) with levodopa (L-DOPA) is associated with a high risk of developing motor fluctuations and dyskinesia. Deep brain stimulation (DBS) in PD patients of the subthalamic nucleus can improve these motor complications. Although the positive effect on motor symptoms has been proven, postoperative cognitive decline has been documented. To tackle the impact of PD-DBS on cognition, 18 DBS patients were compared to 25 best medically treated Parkinson's patients, 24 Mild Cognitive Impairment (MCI) patients and 12 healthy controls using the Neuropsychological Test Battery Vienna-long (NTBV-long) for cognitive outcome 12 months after first examination...
May 16, 2018: Neuropsychiatrie: Klinik, Diagnostik, Therapie und Rehabilitation
https://www.readbyqxmd.com/read/29766738/the-role-of-gene-editing-in-neurodegenerative-diseases
#7
Hueng-Chuen Fan, Ching-Shiang Chi, Yih-Jing Lee, Jeng-Dau Tsai, Shinn-Zong Lin, Horng-Jyh Harn
Neurodegenerative diseases (NDs), at least including Alzheimer's, Huntington's, and Parkinson's diseases, have become the most dreaded maladies because there are no precise diagnostic tools or definite treatments for these debilitating diseases. The increased prevalence and a substantial impact on the social-economic and medical care of NDs propel governments to develop policies to counteract the impact. Although the etiologies of NDs are still unknown, growing evidence suggests that genetic, cellular, and circuit alternations may cause the generation of abnormal misfolded proteins, which uncontrolledly accumulate to damage and eventually overwhelm the protein-disposal mechanisms of these neurons, leading to a common pathological feature of NDs...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29765316/noradrenergic-dysfunction-in-alzheimer-s-and-parkinson-s-diseases-an-overview-of-imaging-studies
#8
REVIEW
Andrew C Peterson, Chiang-Shan R Li
Noradrenergic dysfunction contributes to cognitive impairment in Alzheimer's Disease (AD) and Parkinson's Disease (PD). Conventional therapeutic strategies seek to enhance cholinergic and dopaminergic neurotransmission in AD and PD, respectively, and few studies have examined noradrenergic dysfunction as a target for medication development. We review the literature of noradrenergic dysfunction in AD and PD with a focus on human imaging studies that implicate the locus coeruleus (LC) circuit. The LC sends noradrenergic projections diffusely throughout the cerebral cortex and plays a critical role in attention, learning, working memory, and cognitive control...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29764720/altered-somatosensory-processing-in-parkinson-s-disease-and-modulation-by-dopaminergic-medications
#9
Aimee J Nelson, Tasnuva Hoque, Carolyn Gunraj, Robert Chen
BACKGROUND: Somatosensory abnormalities contribute to the pathophysiology of Parkinson's disease (PD). The goal of this study was to identify abnormalities in the tactile-evoked activation of the somatosensory and motor cortices in PD, and in a sensorimotor circuit that traverses both of these cortical loci. The second goal was to investigate the impact of dopaminergic medication on these measures. METHODS: Individuals with PD (n = 10, age 61 ± 8 years) and aged-matched controls (n = 11, age 52...
May 7, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29764466/validity-of-shoe-type-inertial-measurement-units-for-parkinson-s-disease-patients-during-treadmill-walking
#10
Myeounggon Lee, Changhong Youm, Jeanhong Jeon, Sang-Myung Cheon, Hwayoung Park
BACKGROUND: When examining participants with pathologies, a shoe-type inertial measurement unit (IMU) system with sensors mounted on both the left and right outsoles may be more useful for analysis and provide better stability for the sensor positions than previous methods using a single IMU sensor or attached to the lower back and a foot. However, there have been few validity analyses of shoe-type IMU systems versus reference systems for patients with Parkinson's disease (PD) walking continuously with a steady-state gait in a single direction...
May 15, 2018: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/29758999/movement-disorders-associated-with-antipsychotic-medication-in-people-with-schizophrenia-an-overview-of-cochrane-reviews-and-meta-analysis
#11
Davide Martino, Vikram Karnik, Sydney Osland, Thomas R E Barnes, Tamara M Pringsheim
Movement disorders associated with antipsychotic medications are relatively common, stigmatising, and potentially disabling. Their prevalence in people with psychosis who are prescribed second-generation antipsychotics (SGAs) is uncertain, as is their level of recognition by clinicinas. We conducted meta-analyses of randomised controlled trials included in the Cochrane Database of Systematic Reviews on schizophrenia and schizophrenia-like psychoses to estimate the prevalence of new-onset dystonia, akathisia, parkinsonism, and tremor with SGAs (amisulpride, asenapine, aripiprazole, clozapine, olanzapine, paliperidone, quetiapine, risperidone, L-sulpiride, and ziprasidone) approved in Canada and the UK, comparing them with haloperidol and chlorpromazine...
January 1, 2018: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/29758227/effects-of-feedback-delay-on-learning-from-positive-and-negative-feedback-in-patients-with-parkinson-s-disease-off-medication
#12
Benjamin Weismüller, Marta Ghio, Kazimierz Logmin, Christian Hartmann, Alfons Schnitzler, Bettina Pollok, Martin Südmeyer, Christian Bellebaum
Phasic dopamine (DA) signals conveyed from the substantia nigra to the striatum and the prefrontal cortex crucially affect learning from feedback, with DA bursts facilitating learning from positive feedback and DA dips facilitating learning from negative feedback. Consequently, diminished nigro-striatal dopamine levels as in unmedicated patients suffering from Parkinson's Disease (PD) have been shown to lead to a negative learning bias. Recent studies suggested a diminished striatal contribution to feedback processing when the outcome of an action is temporally delayed...
May 11, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29757774/can-telerehabilitation-games-lead-to-functional-improvement-of-upper-extremities-in-individuals-with-parkinson-s-disease
#13
Imre Cikajlo, Alma Hukić, Irena Dolinšek, Dejana Zajc, Mateja Vesel, Tatjana Krizmanič, Bojan Blažica, Anton Biasizzo, Franc Novak, Karmen Peterlin Potisk
Parkinson's disease (PD) is treated by medication, less with deep brain stimulation and physiotherapy. Different opinions on the clinical meaningfulness of the physiotherapy or recommended intensive physiotherapy were found. Our objectives were to design intensive target-based physiotherapy for upper extremities suitable for telerehabilitation services and examine the clinical meaningfulness of the exergaming at an unchanged medication plan. A telerehabilitation exergaming system using the Kinect sensor was developed; 28 patients with PD participated in the study...
May 4, 2018: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/29756335/treatment-of-restless-legs-syndrome-evidence-based-review-and-implications-for-clinical-practice-revised-2017-%C3%A2
#14
REVIEW
Juliane Winkelmann, Richard P Allen, Birgit Högl, Yuichi Inoue, Wolfgang Oertel, Aaro V Salminen, John W Winkelman, Claudia Trenkwalder, Cristina Sampaio
The objective of the current review was to update the previous evidence-based medicine review of treatments for restless legs syndrome published in 2008. All randomized, controlled trials (level I) with a high quality score published between January 2007 and January 2017 were reviewed. Forty new studies qualified for efficacy review. Pregabalin, gabapentin enacarbil, and oxycodone/naloxone, which did not appear in the previous review, have accrued data to be considered efficacious. Likewise, new data enable the modification of the level of efficacy for rotigotine from likely efficacious to efficacious...
May 14, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29756003/onset-and-remission-of-psychosis-in-parkinson-s-disease-pharmacologic-and-motoric-markers
#15
Jared Thomas Hinkle, Kate Perepezko, Catherine C Bakker, Martinus P G Broen, Kathleen Chin, Ted M Dawson, Vanessa Johnson, Zoltan Mari, Cherie L Marvel, Kelly A Mills, Alexander Pantelyat, Olga Pletnikova, Liana S Rosenthal, Melissa D Shepard, Daniel A Stevens, Juan C Troncoso, Jiangxia Wang, Gregory M Pontone
Background: Psychosis is among the most disabling complications of Parkinson's disease (PD). The chronicity of PD psychosis remains understudied and the relative importance of dopaminergic therapy versus the disease process itself in engendering psychosis remains unclear. Objectives: To examine pharmacologic and motoric correlates of PD psychosis onset and remission in a longitudinally monitored PD cohort. Methods: We analyzed data from 165 participants enrolled in a longitudinal PD study through the Morris K...
January 2018: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/29753113/cardiovascular-responses-during-resistance-exercise-in-patients-with-parkinson-disease
#16
Roberto Miyasato, Carla Silva-Batista, Tiago Peçanha, David A Low, Marco T de Mello, Maria E Piemonte, Carlos Ugrinowitsch, Cláudia L M Forjaz, Hélcio Kanegusuku
BACKGROUND: Patients with Parkinson disease (PD) present cardiovascular autonomic dysfunction which impairs blood pressure control. However, cardiovascular responses during resistance exercise are unknown in these patients. OBJECTIVE: Investigate the cardiovascular responses during resistance exercise performed with different muscle masses, in patients with PD. DESIGN: Two groups, repeated-measures design. SETTING: Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo...
May 9, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29752251/the-importance-of-nonlinear-transformations-use-in-medical-data-analysis
#17
Netta Shachar, Alexis Mitelpunkt, Tal Kozlovski, Tal Galili, Tzviel Frostig, Barak Brill, Mira Marcus-Kalish, Yoav Benjamini
BACKGROUND: The accumulation of data and its accessibility through easier-to-use platforms will allow data scientists and practitioners who are less sophisticated data analysts to get answers by using big data for many purposes in multiple ways. Data scientists working with medical data are aware of the importance of preprocessing, yet in many cases, the potential benefits of using nonlinear transformations is overlooked. OBJECTIVE: Our aim is to present a semi-automated approach of symmetry-aiming transformations tailored for medical data analysis and its advantages...
May 11, 2018: JMIR Medical Informatics
https://www.readbyqxmd.com/read/29748111/dat-spect-imaging-in-cases-of-drug-induced-parkinsonism-in-a-specialty-movement-disorders-practice
#18
Jacob Yomtoob, Kimberly Koloms, Danny Bega
OBJECTIVE: Compare clinical characteristics and outcomes in cases where DAT-SPECT imaging is used to distinguish Parkinson's disease from Drug-Induced Parkinsonsim. BACKGROUND: Clinical uncertainty in diagnosing Parkinson's disease is common when patients are on dopamine-blocking medications. DAT-SPECT imaging can improve diagnostic certainty but little data are available on clinical characteristics and outcomes associated with normal and abnormal scan results. METHODS: Retrospective chart review of patients seen at a movement disorders center between 2011 and 2017 where DAT-SPECT was ordered to distinguish Parkinson's disease from Drug-induced Parkinsonism...
May 5, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29747716/effects-of-antiparkinson-medication-on-cognition-in-parkinson-s-disease-a-systematic-review
#19
Marc-André Roy, Maxime Doiron, Jessica Talon-Croteau, Nicolas Dupré, Martine Simard
OBJECTIVE: This study aimed to systematically review the effects of currently prescribed antiparkinson medication on cognition in patients with mild-to-moderate Parkinson's disease (PD) who were either cognitively intact or mildly impaired. METHODS: English- and French-language studies published between 1969 and 2017 were accessed via MedLine, PsychNET, EMBASE and EBSCO databases. Methodological quality (MQ) was evaluated with the quality assessment instrument of the Cochrane Collaboration Depression, Anxiety and Neurosis Review (scores from 0% to 44% indicate very low quality; scores from 45% to 64% indicate low quality; scores from 65% to 84% indicate medium quality; and scores from 85% to 100% indicate high quality)...
May 11, 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29745334/the-role-of-lipid-nanoparticles-and-its-surface-modification-in-reaching-the-brain-an-approach-for-neurodegenerative-diseases-treatment
#20
Jose Luis Pedraz, Manoli Igartua, Rosa Maria, Sara Hernando
Nanomedicine is a field of science that employs materials in the nanometer scale. Specifically, the use of nanoparticles (NPs) has some medical applications due to their structure, for example, the ability to cross the biological barriers, and their effectiveness avoiding some drug delivery problems. Because of that, in the last years, the use of NPs has been raised as a workable solution for neurodegenerative diseases (ND) treatment [1,2]. NDs are characterized by a continuous structural and functional neuronal loss, usually correlated with neuronal death...
May 9, 2018: Current Drug Delivery
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