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https://www.readbyqxmd.com/read/29334320/human-dopamine-transporter-the-first-implementation-of-a-combined-in-silico-in-vitro-approach-revealing-the-substrate-and-inhibitor-specificities
#1
Teodora Djikic, Yasmina Martí, Francesca Spyrakis, Thorsten Lau, Paolo Benedetti, Gavin Davey, Patrick Schloss, Kemal Yelekci
Parkinson's disease (PD) is characterized by the loss of dopamine-generating neurons in the substantia nigra (SN) and corpus striatum (CS). Current treatments alleviate PD symptoms rather than exerting neuroprotective effect on dopaminergic neurons. New drugs targeting the dopaminergic neurons by specific uptake through the human dopamine transporter (hDAT) could represent a viable strategy for establishing selective neuroprotection. Molecules able to increase the bioactive amount of extracellular dopamine (DA), thereby enhancing and compensating a loss of dopaminergic neurotransmission, and to exert neuroprotective response because of their accumulation in the cytoplasm, are required...
January 15, 2018: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29334040/botulinum-toxin-type-a-for-pain-in-advanced-parkinson-s-disease
#2
Veronica Bruno, Maria Eliza Freitas, Deborah Mancini, Jane P Lui, Janis Miyasaki, Susan H Fox
Background and Objective Pain is a frequent symptom in Parkinson's disease (PD), and the therapeutic alternatives are scarce. The goal of this trial was to measure the effects of botulinum toxin type A (BTXA) in the treatment of limb pain in advanced PD. Methods A randomized double-blind crossover versus placebo study of BTXA for limb pain in advanced Parkinson's disease was conducted. Subjects received individualized BTXA/placebo dosing per pain distribution in limbs. The primary outcome was a measure of change in global pain on a numeric rating scale (NRS) at 4 and 12 weeks postinjection and on a visual analogue scale 12 weeks after treatment...
January 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29332088/drug-delivery-for-movement-disorders
#3
Neil Barua, Steven Gill
There has been substantial research interest in delivering therapeutic neurotrophic factors directly to the brain for the treatment of Parkinson's Disease (PD) and other movement disorders. Direct infusion of glial cell-line derived neurotrophic factor has been investigated in both pre-clinical models and clinical trials. In this chapter we discuss past and present research investigating the potential of direct drug delivery to the brain for the treatment of PD and other movement disorders.
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332086/current-and-expected-advances-in-deep-brain-stimulation-for-movement-disorders
#4
Ausaf A Bari, Jasmine Thum, Diana Babayan, Andres M Lozano
Deep brain stimulation (DBS) has become an established treatment for medically refractory movement disorders including Parkinson's disease, essential tremor, and dystonia. The field of DBS continues to evolve with advances in patient selection, target identification, electrode and pulse generator technology, and the development of more effective stimulation paradigms such as closed-loop stimulation. Furthermore, as the safety and efficacy of DBS improves through better hardware design and deeper understanding of its mechanisms of action, the indications for DBS will continue to expand to cover a wider range of disorders...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332085/deep-brain-stimulation-of-the-subthalamic-nucleus-and-globus-pallidus-for-parkinson-s-disease
#5
Philip S Lee, Donald J Crammond, R Mark Richardson
The concept of deep brain stimulation (DBS) for Parkinson's disease (PD) was introduced over 20 years ago, but our understanding of the nuances of this procedure continues to improve. The average motor outcomes of internal segment of the globus pallidus (GPi) and subthalamic nucleus (STN) DBS appear to be similar, although GPi DBS may allow greater recovery of verbal fluency and may provide greater relief of depression symptoms and improvement in the quality of life, and STN DBS appears more likely to result in decrease in levodopa equivalent doses...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332081/radiosurgical-subthalamic-nucleotomy
#6
Jean Régis, Romain Carron, Tatiana Witjas
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is the reference technique in Parkinson's disease (PD) at different stages of complications. Some patients cannot afford DBS due to anticoagulation or comorbidities or due to pecuniary reasons. Radiosurgery is a minimally invasive stereotactic technique, with no craniotomy and subsequently no risk of bleeding or infection. Its good safety efficacy profile has been established in the treatment of tremor, and the postoperative care issues are simple with a much shorter hospital stay (mean 48 h)...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332076/image-guided-asleep-deep-brain-stimulation
#7
Andrew L Ko, Kim J Burchiel
Deep brain stimulation (DBS) has become an established treatment for medically refractory movement disorders including Parkinson's disease, essential tremor, and dystonia. The field of DBS continues to evolve with advances in patient selection, target identification, electrode and pulse generator technology, and the development of more effective stimulation paradigms such as closed-loop stimulation. Furthermore, as the safety and efficacy of DBS improves through better hardware design and deeper understanding of its mechanisms of action, the indications for DBS will continue to expand to cover a wider range of disorders...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332075/patient-evaluation-and-selection-for-movement-disorders-surgery-the-changing-spectrum-of-indications
#8
Steffen Paschen, Günther Deuschl
This report summarizes the state-of-the-art and controversies around patient selection for deep brain stimulation (DBS) for various conditions. Parkinson's disease (PD): several class I studies have shown superiority of DBS over best medical treatment for advanced PD with fluctuations and further inclusion criteria. One class I study suggests that PD patients with early motor complications might gain more quality of life if operated within 3 years after the onset of fluctuations. The subthalamic nucleus (STN) is still the standard target...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332072/medical-management-of-movement-disorders
#9
Marina Picillo, Renato P Munhoz
Pharmacological treatment is the cornerstone in the management of movement disorders. Although most available treatment options have no impact on the underlying process of each movement disorder, symptomatic therapies can significantly improve patient's quality of life and level of disability. Here, we review the current knowledge on clinical symptomatic management of Parkinson's disease (both early and advanced stages), essential tremor, dystonia, and chorea. Ideally, treatment should be carried out by specialists with reasonable experience in movement disorders, as it needs to be tailored for each patient depending on several appraisals, including but not limited to patients' needs, compliance issues, potential side effects, caregiver support, and presence of comorbidities...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332070/pathophysiologic-basis-of-movement-disorders
#10
Thomas Wichmann
Movement disorders are common and functionally disabling neurologic diseases. Studies over the last decades have investigated the pathophysiology of these diseases in considerable detail, leading to significant insights into their generation of motor disability. While genetically and clinically heterogeneous, most of them are accompanied by prominent and characteristic changes in firing rates and patterns in the basal ganglia, thalamus, and cortex. In recent years, researchers have placed increasing emphasis on the importance of oscillatory changes in firing in these structures, and have discovered that brain areas that were previously considered to be remote from the basal ganglia (such as the cerebellum and the pedunculopontine nucleus) are also highly significant in these disorders...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29331916/aerobic-exercise-is-more-effective-than-goal-based-exercise-for-the-treatment-of-cognition-in-parkinson-s-disease
#11
Carolina R A Silveira, Eric A Roy, Brittany N Intzandt, Quincy J Almeida
BACKGROUND: Little is known about how different exercise modalities influence cognition in Parkinson's disease (PD). Moreover, the focus of previous investigations on examining the effects of exercise mainly on executive functions and the exclusion of individuals with cognitive impairment may limit the potential to define exercise as a treatment for cognitive decline in PD. OBJECTIVE: The aim of this study was to compare the effects of aerobic and goal-based exercise on five cognitive domains in cognitively normal and impaired individuals with PD...
January 10, 2018: Brain and Cognition
https://www.readbyqxmd.com/read/29331287/characterizing-the-effects-of-deep-brain-stimulation-with-magnetoencephalography-a-review
#12
REVIEW
Irene E Harmsen, Nathan C Rowland, Richard A Wennberg, Andres M Lozano
BACKGROUND: Deep brain stimulation (DBS) is an important form of neuromodulation that is being applied to patients with motor, mood, or cognitive circuit disorders. Despite the efficacy and widespread use of DBS, the precise mechanisms by which it works remain unknown. Over the last decade, magnetoencephalography (MEG) has become an important functional neuroimaging technique used to study DBS. OBJECTIVE: This review summarizes the literature related to the use of MEG to characterize the effects of DBS...
January 4, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29330020/predictors-of-deep-brain-stimulation-outcome-in-tremor-patients
#13
Claire Sandoe, Vibhor Krishna, Diellor Basha, Francesco Sammartino, Joao Tatsch, Marina Picillo, Lazzaro di Biase, Yu-Yan Poon, Clement Hamani, Duemani Reddy, Renato P Munhoz, Andres M Lozano, William D Hutchison, Alfonso Fasano
BACKGROUND: Deep brain stimulation of the ventro-intermedius nucleus of the thalamus is an established treatment for tremor of differing etiologies but factors that may predict the short- and especially long-term outcome of surgery are still largely unknown. METHODS: We retrospectively investigated the clinical, pharmacological, electrophysiological and anatomical features that might predict the initial response and preservation of benefit in all patients who underwent deep brain stimulation for tremor...
January 2, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29329328/early-occurrence-of-inspiratory-muscle-weakness-in-parkinson-s-disease
#14
Guillaume Baille, Thierry Perez, David Devos, Valérie Deken, Luc Defebvre, Caroline Moreau
INTRODUCTION: In Parkinson's disease (PD), respiratory insufficiency (including functional and muscle disorders) can impact dysarthria and swallowing. Most studies of this topic have been performed retrospectively in populations of patients with advanced PD. The objective of the present study was to characterize lung function (under off-drug conditions) in early-stage PD patients at baseline and then again two years later. METHODS: Forty-one early-stage PD patients (mean ± SD age: 61...
2018: PloS One
https://www.readbyqxmd.com/read/29327219/pharmacological-insights-into-the-use-of-apomorphine-in-parkinson-s-disease-clinical-relevance
#15
REVIEW
Manon Auffret, Sophie Drapier, Marc Vérin
The present paper consists of a comprehensive review of the literature on apomorphine pharmacological properties and its usefulness in Parkinson's disease (PD). The chemistry, structure-activity relationship, pharmacokinetics and pharmacodynamics of apomorphine are described with regard to its effects on PD symptoms, drug interactions, interindividual variability and adverse events. Apomorphine chemical structure accounts for most of its beneficial and deleterious properties, both dopaminergic and non-dopaminergic...
January 11, 2018: Clinical Drug Investigation
https://www.readbyqxmd.com/read/29327206/brain-photobiomodulation-therapy-a-narrative-review
#16
REVIEW
Farzad Salehpour, Javad Mahmoudi, Farzin Kamari, Saeed Sadigh-Eteghad, Seyed Hossein Rasta, Michael R Hamblin
Brain photobiomodulation (PBM) therapy using red to near-infrared (NIR) light is an innovative treatment for a wide range of neurological and psychological conditions. Red/NIR light is able to stimulate complex IV of the mitochondrial respiratory chain (cytochrome c oxidase) and increase ATP synthesis. Moreover, light absorption by ion channels results in release of Ca2+ and leads to activation of transcription factors and gene expression. Brain PBM therapy enhances the metabolic capacity of neurons and stimulates anti-inflammatory, anti-apoptotic, and antioxidant responses, as well as neurogenesis and synaptogenesis...
January 11, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29327204/neuroprotective-effects-of-filgrastim-in-rotenone-induced-parkinson-s-disease-in-rats-insights-into-its-anti-inflammatory-neurotrophic-and-antiapoptotic-effects
#17
Mariama S Azmy, Esther T Menze, Reem N El-Naga, Mariane G Tadros
All current treatments of Parkinson's disease (PD) focus on enhancing the dopaminergic effects and providing symptomatic relief; however, they cannot delay the disease progression. Filgrastim, a recombinant methionyl granulocyte colony-stimulating factor, demonstrated neuroprotection in many neurodegenerative and neurological diseases. This study aimed to assess the neuroprotective effects of filgrastim in rotenone-induced rat model of PD and investigate the potential underlying mechanisms of filgrastim actions...
January 11, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29326290/functional-lesional-neurosurgery-for-tremor-a-systematic-review-and-meta-analysis
#18
REVIEW
Sebastian R Schreglmann, Joachim K Krauss, Jin Woo Chang, Kailash P Bhatia, Georg Kägi
BACKGROUND: This work evaluates the consistency, effect size and incidence of persistent side effects of lesional neurosurgical interventions in the treatment of tremor due to Parkinson's disease (PD), essential tremor (ET), multiple sclerosis (MS) and midbrain lesions. METHODS: Systematic review and meta-analysis according to PRISMA-P guidelines. Random effects meta-analysis of standardised mean difference based on a peer-reviewed protocol (PROSPERO no. CRD42016048049)...
January 11, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29325182/-cannabis-in-parkinson-s-disease-hype-or-help
#19
Tina Mainka, Jan Stork, Ute Hidding, Carsten Buhmann
Cannabis buds and extracts as well as synthetic cannabinoids have been available on prescription to patients with severe diseases since March 2017, with the costs covered by health insurance companies.The prescription of medical marihuana is not restricted to specific symptoms and is therefore also valid for patients with Parkinson's disease. From a legal perspective, patients who are seriously ill even have the right to be treated with cannabis if standard treatment methods are unsuccessful or result in unbearable side effects...
January 11, 2018: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/29324910/deep-brain-nucleus-targeting-in-parkinson-s-disease-and-essential-tremor-by-image-guided-surgery-using-neuronavigation-system-with-tractography-and-volume-of-tissue-of-activated-assessment
#20
Amir Nikouei, Pooya Torkian, Tohid Emami Meybodi, Arash Javad Mousavi, Amir Saied Seddighi
OBJECTIVE: Deep Brain Stimulation (DBS) is an effective surgical approach for treatment of Parkinson's disease (PD), dystonia and essential tremor (ET). Traditionally, DBS is performed using frame-based stereotactic technique. Recently, image guided surgery (IGS) using neuronavigation has gained popularity in neurosurgical procedures. We aim to investigate whether DBS using neuronavigation is capable of improving patient's outcome and minimize its complications. SUBJECT AND METHODS: From February 2011 to October 2016, 20 patients with PD and 6 patients with ET were enrolled in the study...
September 2017: Hellenic Journal of Nuclear Medicine
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