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https://www.readbyqxmd.com/read/28719359/levodopa-in-parkinson-s-disease-a-review-of-population-pharmacokinetics-pharmacodynamics-analysis
#1
Amélie Marsot, Romain Guilhaumou, Jean Philippe Azulay, Olivier Blin
BACKGROUND: Parkinson's disease is the second most common neurodegenerative disorder after Alzheimer's disease. Although levodopa remains the single effective agent in the management of Parkinson's disease, the accurate determination of this optimal dosage is complicated by marked between-subject and between-occasion variability in this population.  This review presents a synthesis of the population pharmacokinetic and pharmacodynamic models of levodopa described in Parkinson's disease...
2017: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28717970/prostaglandin-ep2-receptors-mediate-mesenchymal-stromal-cell-neuroprotective-effects-on-dopaminergic-neurons
#2
Juan Andrés Parga, María García-Garrote, Salvador Martínez, Ángel Raya, José Luis Labandeira-García, Jannette Rodríguez-Pallares
Mesenchymal stromal cells (MSCs) have been shown to have useful properties for cell therapy and have been proposed for treatment of neurodegenerative diseases, including Parkinson's disease. However, the mechanisms involved in recovering dopaminergic neurons are not clear. The present study aims to evaluate the pathways and molecules involved in the neuroprotective effect of MSCs. We analyzed the viability of dopaminergic cells from different sources in response to conditioned medium derived from bone marrow MSC (MSC-CM)...
July 17, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28716886/clinical-neurology-and-epidemiology-of-the-major-neurodegenerative-diseases
#3
Michael G Erkkinen, Mee-Ohk Kim, Michael D Geschwind
Neurodegenerative diseases are a common cause of morbidity and cognitive impairment in older adults. Most clinicians who care for the elderly are not trained to diagnose these conditions, perhaps other than typical Alzheimer's disease (AD). Each of these disorders has varied epidemiology, clinical symptomatology, laboratory and neuroimaging features, neuropathology, and management. Thus, it is important that clinicians be able to differentiate and diagnose these conditions accurately. This review summarizes and highlights clinical aspects of several of the most commonly encountered neurodegenerative diseases, including AD, frontotemporal dementia (FTD) and its variants, progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), Parkinson's disease (PD), dementia with Lewy bodies (DLB), multiple system atrophy (MSA), and Huntington's disease (HD)...
July 17, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28716772/chewing-induced-facial-dystonia-a-rare-presentation-of-task-specific-dystonia
#4
Chandramohan Sharma, Banshi Lal Kumawat, Ankur Garg, Kaushik Kumar Rana
This case is an addition to scarce literature available for a rare condition, chewing-induced task-specific dystonia. The patient was a 63-year-old woman who presented with a 4-year history of progressive difficulty in eating food only during chewing associated with abnormal facial grimaces without any difficulty in drinking, swallowing, speaking or singing. Examination revealed dystonia of facial muscles every time she chewed but absent during drinking and speaking. As movements were consistent and reproducible with the specific task, other differential diagnosis like motor tics, psychogenic disorder, tardive dystonia and parkinsonism syndrome were excluded leading to a diagnosis of task-specific facial dystonia triggered by chewing...
July 17, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28716322/parkinson-s-disease-and-its-effect-on-the-lower-urinary-tract-evaluation-of-complications-and-treatment-strategies
#5
REVIEW
Benjamin M Brucker, Sidhartha Kalra
Parkinson's disease (PD) and atypical Parkinsonism are the second most common neurodegenerative movement disorders. Lower urinary tract dysfunction is among the most common types of associated autonomic dysfunctions. Differentiating the subtypes of PD is important for symptom management and understanding prognosis, because Lower urinary tract symptoms (LUTS) can evolve differently depending on the primary disease. LUTS are caused by storage and/or voiding dysfunctions. Urodynamics is a key investigative tool...
August 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/28716269/dopamine-agonist-withdrawal-syndrome-daws-in-a-tertiary-parkinson-disease-treatment-center
#6
Shnehal Patel, Xiomara Garcia, Mohammad Edrees Mohammad, Xin Xin Yu, Katelyn Vlastaris, Kaley O'Donnell, Kathryn Sutton, Hubert H Fernandez
INTRODUCTION: Dopamine agonists are a mainstay of treatment for patients with Parkinson disease (PD). However, side effects limit their use, often necessitating dose change. Upon withdrawal, patients may experience dopamine agonist withdrawal syndrome (DAWS). To date, there is no established protocol for the prevention or treatment of DAWS. METHODS: We performed a retrospective chart review of PD patients who were taking a dopamine agonist. RESULTS: In our large cohort of 313 PD patients who were on a dopamine agonist, we found that 39...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28715596/influence-of-physical-exercise-on-%C3%AE-amyloid-%C3%AE-synuclein-and-tau-accumulation-an-in-vitro-model-of-oxidative-stress-in-human-red-blood-cells
#7
C Iofrida, S Daniele, D Pietrobono, J Fusi, F Galetta, M L Trincavelli, U Bonuccelli, F Franzoni, C Martini
A common pathological feature of neurodegenerative disorders (NDs), such as Alzheimer's (AD) and Parkinson's (PD) diseases, is the abnormal accumulation and misfolding of specific proteins, primarily α-synuclein (α-syn), β-amyloid1-42 (Aβ) and tau, in brain and in peripheral tissues too. Oxidative stress has been proved to be involved in NDs at various levels and, in particular, in such protein alterations, on the contrary physical activity is emerging as a counteracting factor in NDs. In the present work, the content of Aβ, α-syn and tau in red blood cells (RBCs) derived from ten endurance athletes (ATHL) and ten sedentary volunteers (SED) were compared before and after in vitrooxidative stress treatment...
July 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28715462/cell-specificity-dictates-similarities-in-gene-expression-in-multiple-sclerosis-parkinson-s-disease-and-alzheimer-s-disease
#8
Yuichiro Itoh, Rhonda R Voskuhl
Drug repurposing is an efficient approach in new treatment development since it leverages previous work from one disease to another. While multiple sclerosis (MS), Parkinson's disease (PD), and Alzheimer's disease (AD) are all neurodegenerative diseases of the central nervous system (CNS) and differ in many clinical and pathological aspects, it is possible that they may share some mechanistic features. We hypothesized that focusing on gene expression in a CNS cell type specific manner might uncover similarities between diseases that could be missed using whole tissue gene expression analyses...
2017: PloS One
https://www.readbyqxmd.com/read/28714503/protective-effects-of-fisetin-and-other-berry-flavonoids-in-parkinson-s-disease
#9
REVIEW
Pamela Maher
Parkinson's disease (PD) is an age-associated degenerative disease of the midbrain that results from the loss of dopaminergic neurons in the substantia nigra. It initially presents as a movement disorder with cognitive and other behavioral problems appearing later in the progression of the disease. Current therapies for PD only delay the onset or reduce the motor symptoms. There are no treatments to stop the nerve cell death or to cure the disease. It is becoming increasingly clear that neurological diseases such as PD are multi-factorial involving disruptions in multiple cellular systems...
July 17, 2017: Food & Function
https://www.readbyqxmd.com/read/28714346/neuroprotective-effects-of-cassia-tora-against-paraquat-induced-neurodegeneration-relevance-for-parkinson-s-disease
#10
Sunil K Ravi, Ramesh B Narasingappa, Chandrashekar G Joshi, Talakatta K Girish, Bruno Vincent
The aim of the present study was to determine whether Cassia tora extracts could reverse the oxidative stress-induced neurodegeneration in a Parkinson's disease in vitro model. The leaves were treated with ethyl acetate (CtEA) or methanol (CtME). The extracts were first analysed by HPLC for their phenolic content and then tested for their neuroprotective effects in human SK-N-SH neuroblastoma cells. Cells were pre-treated with various concentrations of extracts followed by incubation with paraquat (14 μM)...
July 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28714112/wearables-in-epilepsy-and-parkinson-s-disease-a-focus-group-study
#11
A Ozanne, D Johansson, U Hällgren Graneheim, K Malmgren, F Bergquist, M Alt Murphy
OBJECTIVES: Wearable sensors that measure movement and physiological variables are attractive for clinical evaluation of neurological diseases such as epilepsy and Parkinson's disease (PD). The aim of this study was to explore perceptions regarding the use of wearable technology in disease monitoring and management as reported by individuals with epilepsy and Parkinson's disease as well as health professionals working with these patient groups. MATERIALS AND METHODS: Six patient groups (n=25) and two groups with health professionals (n=15) participated in this qualitative, descriptive study with focus group interviews...
July 16, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28713844/epidemiology-diagnosis-and-management-of-neurogenic-orthostatic-hypotension
#12
Jose-Alberto Palma, Horacio Kaufmann
BACKGROUND: Orthostatic hypotension (OH) is a sustained fall in blood pressure on standing which can cause symptoms of organ hypoperfusion. OH is associated with increased morbidity and mortality and leads to a significant number of hospital admissions particularly in the elderly (233 per 100,000 patients over 75 years of age in the US). OH can be due to volume depletion, blood loss, large varicose veins, medications, or due to defective activation of sympathetic nerves and reduced norepinephrine release upon standing (i...
May 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28712616/aripiprazole-lauroxil-compared-with-paliperidone-palmitate-in-patients-with-schizophrenia-an-indirect-treatment-comparison
#13
Chris Cameron, Jacqueline Zummo, Dharmik N Desai, Christine Drake, Brian Hutton, Ahmed Kotb, Peter J Weiden
BACKGROUND: Aripiprazole lauroxil (AL) is a long-acting injectable atypical antipsychotic recently approved for treatment of schizophrenia on the basis of a large-scale trial of two doses of AL versus placebo. There are no direct-comparison studies with paliperidone palmitate (PP; long-acting antipsychotic used most often in acute settings) for the acute psychotic episode. OBJECTIVES: To indirectly compare efficacy and safety of the pivotal AL study with all PP studies meeting indirect comparison criteria...
July 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28711816/unilateral-subthalamotomy-in-parkinson-s-disease-cognitive-psychiatric-and-neuroimaging-changes
#14
Ignacio Obeso, Enrique Casabona, Rafael Rodríguez-Rojas, Maria Luisa Bringas, Raúl Macías, Nancy Pavón, Jose A Obeso, Marjan Jahanshahi
Unilateral subthalamotomy is an effective treatment for the cardinal motor features of Parkinson's disease (PD). However, non-motor changes possibly associated with right or left subthalamotomy remain unknown. Our aim was to assess cognitive, psychiatric and neuroimaging changes after treatment with unilateral subthalamotomy. Fourteen medicated patients with PD were evaluated before and after (mean 6 months after operation) unilateral subthalamotomy (5 right, 9 left). In addition to motor assessments, cognitive (global cognition and executive functions), psychiatric (apathy, depression, anxiety, mania, hypo- and hyperdopaminergic behaviours, impulsivity), quality of life evaluations and volume of lesions were obtained...
June 27, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28711737/subthalamic-deep-brain-stimulation-sweet-spots-and-hyperdirect-cortical-connectivity-in-parkinson-s-disease
#15
Harith Akram, Stamatios N Sotiropoulos, Saad Jbabdi, Dejan Georgiev, Philipp Mahlknecht, Jonathan Hyam, Thomas Foltynie, Patricia Limousin, Enrico De Vita, Marjan Jahanshahi, Marwan Hariz, John Ashburner, Tim Behrens, Ludvic Zrinzo
OBJECTIVES: Firstly, to identify subthalamic region stimulation clusters that predict maximum improvement in rigidity, bradykinesia and tremor, or emergence of side-effects; and secondly, to map-out the cortical fingerprint, mediated by the hyperdirect pathways which predict maximum efficacy. METHODS: High angular resolution diffusion imaging in twenty patients with advanced Parkinson's disease was acquired prior to bilateral subthalamic nucleus deep brain stimulation...
July 12, 2017: NeuroImage
https://www.readbyqxmd.com/read/28711564/role-of-estrogen-and-levodopa-in-1-methyl-4-pheny-l-1-2-3-6-tetrahydropyridine-mptp-induced-cognitive-deficit-in-parkinsonian-ovariectomized-mice-model-a-comparative-study
#16
Satyndra Kumar Yadav, Shivani Pandey, Babita Singh
Parkinson's disease (PD) is one of the most common neurodegenerative disease found in the aging population. Currently, many studies are being conducted to find a suitable and effective cure for PD, with an emphasis on the use of herbal plants. In this study, the neuroprotective effects of estrogen was evaluated in the 1-methyl-4-phe-nyl-1,2,3,6-tetrahydropyridine (MPTP) model of PD with cognitive deficit and compared to Levodopa (LD), a well reported neuroprotective agent used for treating PD. Twenty-four Swiss albino mice were randomly divided into four groups: Control, MPTP, MPTP+LD and MPTP+estrogen...
July 12, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28711409/nortriptyline-inhibits-aggregation-and-neurotoxicity-of-alpha-synuclein-by-enhancing-reconfiguration-of-the-monomeric-form
#17
Timothy J Collier, Kinshuk R Srivastava, Craig Justman, Tom Grammatopoulous, Birgit Hutter-Paier, Manuela Prokesch, Daniel Havas, Jean-Christophe Rochet, Fang Liu, Kevin Jock, Patrícia de Oliveira, Georgia L Stirtz, Ulf Dettmer, Caryl E Sortwell, Mel B Feany, Peter Lansbury, Lisa Lapidus, Katrina L Paumier
The pathology of Parkinson's disease and other synucleinopathies is characterized by the formation of intracellular inclusions comprised primarily of misfolded, fibrillar α-synuclein (α-syn). One strategy to slow disease progression is to prevent the misfolding and aggregation of its native monomeric form. Here we present findings that support the contention that the tricyclic antidepressant compound nortriptyline (NOR) has disease-modifying potential for synucleinopathies. Findings from in vitro aggregation and kinetics assays support the view that NOR inhibits aggregation of α-syn by directly binding to the soluble, monomeric form, and by enhancing reconfiguration of the monomer, inhibits formation of toxic conformations of the protein...
July 12, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28711402/beneficial-effects-of-angiotensin-ii-receptor-blockers-in-brain-disorders
#18
REVIEW
J M Saavedra
A canonical brain Renin-Angiotensin System (RAS), like the canonical peripheral RAS, has long been proposed as a major regulator of brain function. Because of methodological limitations, however, this system is in urgent need of critical revision. The Angiotensin II AT1 receptors have been confirmed as key factors in the regulation of brain function, and AT1 receptor over activity has been established as a major and early injury factor in the development of many brain diseases. Consequently, Angiotensin Receptor Blockers (ARBs), compounds widely used to treat cardiovascular and metabolic disorders, are excellent candidates for repurposing for the treatment of brain disorders...
July 12, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28710026/systematic-review-of-the-impact-of-osteoarthritis-on-health-outcomes-for-comorbid-disease-in-older-people
#19
REVIEW
Lynne Parkinson, Debra L Waters, Linѐl Franck
OBJECTIVE: A systematic review was undertaken examining the impact of comorbid osteoarthritis on health outcomes for people aged 50 years or older with cardiovascular disease, diabetes or obesity. DESIGN: The protocol is registered in PROSPERO (CRD42015023417). Relevant electronic databases and grey literature were systematically searched for studies published in English between January 2005 and December 2016. Two reviewers independently screened studies for selection using predetermined inclusion and exclusion criteria, and independently completed methodological quality review...
July 11, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28708433/physical-health-outcomes-in-preschoolers-with-prior-authorization-for-antipsychotics
#20
Yu-Jung Wei, Xinyue Liu, Nikhil Rao, Marie McPherson, Mary Beth Jones, Regina Bussing, Almut G Winterstein
OBJECTIVE: To examine incidence of adverse health outcomes and associated factors among preschoolers (under age 6) who received antipsychotic treatment through the Florida Medicaid Prior Authorization (PA) program. METHODS: Using Florida's PA registry linked to the state's Medicaid claims data, we ascertained incident outcomes during PA-approved antipsychotic use between April 2008 and September 2015 (7.5 years). Six outcomes associated with use of antipsychotics included: diabetes, obesity, hyperlipidemia, hyperprolactinemia, cardiovascular disease (CVD) (including hypertension, ventricular arrhythmia, and other CVDs), and extrapyramidal symptoms (EPS) (including dystonia, akathisia, parkinsonism, and tardive dyskinesia)...
July 14, 2017: Journal of Child and Adolescent Psychopharmacology
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