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Dyskinesia

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https://www.readbyqxmd.com/read/28331322/the-role-of-deep-brain-stimulation-in-parkinson-s-disease-an-overview-and-update-on-new-developments
#1
REVIEW
John Y Fang, Christopher Tolleson
Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by the loss of neuronal dopamine production in the brain. Oral therapies primarily augment the dopaminergic pathway. As the disease progresses, more continuous delivery of therapy is commonly needed. Deep brain stimulation (DBS) has become an effective therapy option for several different neurologic and psychiatric conditions, including PD. It currently has US Food and Drug Administration approval for PD and essential tremor, as well as a humanitarian device exception for dystonia and obsessive-compulsive disorder...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28329449/behavioural-and-neurochemical-effects-of-alpha-lipoic-acid-associated-with-omega-3-in-tardive-dyskinesia-induced-by-chronic-haloperidol-in-rats
#2
Dayane Pessoa Araújo, Thaisa Camboim, Ana Silva, Caio Fonseca, Rebeca Sousa, Mabson Barbosa, Lucidio Oliveira, José Cavalcanti, Eudes Lucena, Fausto Guzen
Tardive dyskinesia (TD) is characterized by involuntary movements of the lower portion of the face being related to typical antipsychotic therapy. TD is associated with the oxidative imbalance in the basal ganglia. Lipoic acid (LA) and omega 3 (ω-3) are antioxidants acting as enzyme cofactors, regenerating antioxidant enzymes. This study aimed to investigate behavioral and neurochemical effects of supplementation with of LA (100mg/Kg) and ω-3 (1g/Kg) in the treatment of TD-induced by chronic use haloperidol (HAL) (1mg/Kg) in rats...
March 22, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28328695/effect-of-biperiden-treatment-in-acute-orofacial-and-extremity-dyskinesia-with-methylphenidate-therapy
#3
Elif Acar Arslan, Erhan Arslan, Anil Kilinç, Özkan Göksu
Methylphenidate is a stimulant drug commonly prescribed to individuals with attention-deficit/hyperactivity disorder. The suggested underlying mechanism of acute dyskinesias is dopaminergic transmission increase. We describe a 9-year-old boy with a diagnosis of attention-deficit/hyperactivity disorder admitted to emergency clinic with primarily orofacial and extremity dyskinesia after administration of a first dose of 18 mg OROS (osmotic [controlled] release oral) methylphenidate (Concerta). OROS methylphenidate was discontinued, and the patient's symptoms resolved within 20 minutes after injection of biperiden by intravenous route (0...
March 21, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28325582/a-novel-framework-for-understanding-reduced-awareness-of-dyskinesias-in-parkinson-s-disease
#4
Sara Palermo, Leonardo Lopiano, Maurizio Zibetti, Rosalba Rosato, Daniela Leotta, Martina Amanzio
BACKGROUND: Although dyskinesias-reduced-self-awareness (DRSA) in Parkinson's disease (PD) is related to deficit in metacognition, other factors, such as "Theory of Mind" (ToM), could operate. METHODS: Forty-one PD patients were assessed using the Global Awareness of Movement Disorders (GAM) and the Dyskinesias Subtracted-Index (DS-I). To study whether GAM and DS-I scores could be influenced by second-type ToM or Reading the Mind in the Eyes (RME) tasks, we conducted two multiple logistic regression analyses...
March 16, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28320223/kinect-3-a-phase-3-randomized-double-blind-placebo-controlled-trial-of-valbenazine-for-tardive-dyskinesia
#5
Robert A Hauser, Stewart A Factor, Stephen R Marder, Mary Ann Knesevich, Paul M Ramirez, Roland Jimenez, Joshua Burke, Grace S Liang, Christopher F O'Brien
OBJECTIVE: Tardive dyskinesia is a persistent movement disorder induced by dopamine receptor blockers, including antipsychotics. Valbenazine (NBI-98854) is a novel, highly selective vesicular monoamine transporter 2 inhibitor that demonstrated favorable efficacy and tolerability in the treatment of tardive dyskinesia in phase 2 studies. This phase 3 study further evaluated the efficacy, safety, and tolerability of valbenazine as a treatment for tardive dyskinesia. METHOD: This 6-week, randomized, double-blind, placebo-controlled trial included patients with schizophrenia, schizoaffective disorder, or a mood disorder who had moderate or severe tardive dyskinesia...
March 21, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28315782/human-comt-over-expression-confers-a-heightened-susceptibility-to-dyskinesia-in-mice
#6
Oscar Solís, Jose-Rubén García-Montes, Patricia Garcia-Sanz, Antonio S Herranz, Maria-José Asensio, Gina Kang, Noboru Hiroi, Rosario Moratalla
Catechol-O-methyltransferase (COMT) degrades dopamine and its precursor l-DOPA and plays a critical role in regulating synaptic dopamine actions. We investigated the effects of heightened levels of COMT on dopamine-regulated motor behaviors and molecular alterations in a mouse model of dyskinesia. Transgenic mice overexpressing human COMT (TG) and their wildtype (WT) littermates received unilateral 6-OHDA lesions in the dorsal striatum and were treated chronically with l-DOPA for two weeks. l-DOPA-induced dyskinesia was exacerbated in TG mice without altering l-DOPA motor efficacy as determined by contralateral rotations or motor coordination...
March 16, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28299787/first-clinical-experience-with-levodopa-carbidopa-microtablets-in-parkinson-s-disease
#7
M Senek, M Hellström, J Albo, P Svenningsson, D Nyholm
BACKGROUND: Levodopa is the most effective symptomatic treatment throughout the course of Parkinson's disease, but as the disease progresses, there may be a need for individualized, fine-tuned treatments. AIM: To evaluate individualized levodopa/carbidopa dosing using microtablets dispensed with a dose dispenser, with respect to efficacy and usability as perceived by patients. METHODS: Patient records and dose dispenser reports from patients previously or currently treated with microtablets and a dose dispenser were reviewed, and a patient questionnaire concerning effect and usability was sent to patients...
March 15, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28297686/-early-experience-with-the-vercise-sup-tm-sup-dbs-system-in-the-treatment-of-dystonic-tremor
#8
Yasushi Miyagi
Six cases of dystonic tremor were treated with the Vercise<sup>TM</sup> deep brain stimulation(DBS)system, which has the multiple independent current control(MICC)technology. The mean preoperative score of Burke-Fahn-Marsden dystonia rating scale was 16.2±9.4, which was reduced to 6.1±4.6 at 5 months postoperatively. A 65-year-old male presented an intractable dystonic tremor of the jaw, neck, and shoulders due to tardive syndrome. He experienced the successful tremor relief after unipolar DBS in the globus pallidus internus(GPi)with Vercise<sup>TM</sup> but complained of dysarthria...
March 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28296742/pseudohypoparathyroidism-with-basal-ganglia-calcification-a-case-report-of-rare-cause-of-reversible-parkinsonism
#9
Cheng-Yuan Song, Zhen-Xiang Zhao, Wei Li, Cong-Cong Sun, Yi-Ming Liu
RATIONALE: Parkinsonism can be secondary to many internal diseases, in some certain conditions, it seems that the clinical manifestations of parkinsonism presenting reversible. We report a case of patient with parkinsonism secondary to pseudohypoparathyroidism, who improved markedly after the supplement of serum calcium. PATIENT CONCERNS AND DIAGNOSES: A 52-year-old woman with acute parkinsonism was diagnosed as pseudohypoparathyroidism after the conducting of brain computed tomography, laboratory examinations, and gene detection...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28291037/tardive-dyskinesia-a-historical-perspective
#10
Matthew Macaluso, Alexandra Flynn, Sheldon H Preskorn
The goal of this column is to provide historical context on tardive dyskinesia (TD) to help the reader understand how the concept was studied and evolved over time. Psychiatrists today should understand this history and consider it in combination with more recent data on the neurobiology of TD, including data from animal studies. This combination of classic data with modern science can help readers develop a more complete understanding and lead to a more judicious use of the term TD, after consideration of all of the alternative causes of abnormal movements, including spontaneous dyskinesia (SD)...
March 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/28290230/cilia-and-ear
#11
Gioia Piatti, Maria Margherita De Santi, Sara Torretta, Lorenzo Pignataro, Daniela Soi, Umberto Ambrosetti
OBJECTIVE: To investigate the prevalence of otological complications derived from primary ciliary dyskinesia (PCD) in adulthood. METHODS: Twenty-three patients with diagnosed PCD underwent medical history aimed at recording the presence of ear, nose, and throat manifestations (ENT) and any surgical treatments. The ENT objectivity was annotated, and then patients were subjected to audiometric test, tympanometry, registration of otoacoustic emission, and vestibular evaluation...
April 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28289722/assessment-of-ciliary-phenotype-in-primary-ciliary-dyskinesia-by-micro-optical-coherence-tomography
#12
George M Solomon, Richard Francis, Kengyeh K Chu, Susan E Birket, George Gabriel, John E Trombley, Kristi L Lemke, Nikolai Klena, Brett Turner, Guillermo J Tearney, Cecilia W Lo, Steven M Rowe
Ciliary motion defects cause defective mucociliary transport (MCT) in primary ciliary dyskinesia (PCD). Current diagnostic tests do not assess how MCT is affected by perturbation of ciliary motion. In this study, we sought to use micro-optical coherence tomography (μOCT) to delineate the mechanistic basis of cilia motion defects of PCD genes by functional categorization of cilia motion. Tracheae from three PCD mouse models were analyzed using μOCT to characterize ciliary motion and measure MCT. We developed multiple measures of ciliary activity, integrated these measures, and quantified dyskinesia by the angular range of the cilia effective stroke (ARC)...
March 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28286180/dysregulation-of-bet-proteins-in-levodopa-induced-dyskinesia
#13
David A Figge, David G Standaert
Levodopa (L-DOPA) remains the most effective pharmacological treatment for Parkinson Disease (PD) but its use is limited by the development of debilitating drug-related side effects, particularly L-DOPA induced dyskinesia (LID). LID is a consequence of long-term L-DOPA use, and in model systems is characterized by a "priming effect", whereby initial administrations of L-DOPA trigger a sensitized biochemical and transcriptional response upon subsequent dopaminergic stimulation. Preliminary studies into the mechanisms underlying this cellular memory have indicated an important role for epigenetic change but many of the downstream mechanisms remain unknown...
March 9, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28284817/differential-effects-of-gaseous-versus-injectable-anesthetics-on-changes-in-regional-cerebral-blood-flow-and-metabolism-induced-by-l-dopa-in-a-rat-model-of-parkinson-s-disease
#14
Zisis Bimpisidis, Carl M Öberg, Natallia Maslava, M Angela Cenci, Cornelia Lundblad
Preclinical imaging of brain activity requires the use of anesthesia. In this study, we have compared the effects of two widely used anesthetics, inhaled isoflurane and ketamine/xylazine cocktail, on cerebral blood flow and metabolism in a rat model of Parkinson's disease and l-DOPA-induced dyskinesia. Specific tracers were used to estimate regional cerebral blood flow (rCBF - [(14)C]-iodoantipyrine) and regional cerebral metabolic rate (rCMR - [(14)C]-deoxyglucose) with a highly sensitive autoradiographic method...
March 8, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28284321/matrix-metalloproteinases-and-airway-remodeling-and-function-in-primary-ciliary-dyskinesia
#15
Massimo Pifferi, Andrew Bush, Davide Caramella, Maria Rita Metelli, Maria Di Cicco, Martina Piras, Giulia Gherarducci, Carlo Capristo, Fabrizio Maggi, Diego Peroni, Attilio L Boner
BACKGROUND: The balance between matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) is important in the regulation of airway damage. OBJECTIVE: To evaluate whether they are important in the pathophysiology of primary and secondary ciliary dyskinesia (PCD, SCD). METHODS: We measured sputum bacteriology, lung CT changes, MMPs, TIMPs and lung function in 86 patients (51 PCD, 35 SCD) in a cross-sectional study; the 10 controls studied did not have HRCT or sputum cultures...
March 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28283360/phenotypic-expression-of-arvc-how-12-lead-ecg-can-predict-left-or-right-ventricle-involvement-a-familiar-case-series-and-a-review-of-literature
#16
Luca Gaido, Alberto Battaglia, Mario Matta, Carla Giustetto, Simone Frea, Massimo Imazio, Elena Richiardi, Lucia Garberoglio, Fiorenzo Gaita
AIMS: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited heart-muscle disease primarily affecting the right ventricle (RV) and potentially causing sudden death in young people. The natural history of the disease is firstly characterized by a concealed form progressing over a biventricular involvement. Three different cases coming from the same family are presented together with a review of the literature. METHODS AND RESULTS: Multi-parameter analysis including imaging and electrocardiographic analysis is presented since the first medical referral with follow-up ranging from 11 to 38years...
February 28, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28281509/-pathogenetic-bases-and-efficacy-of-slow-calcium-channel-blockers-in-the-therapy-of-recurrent-peptic-ulcer-disease-associated-with-hypertension
#17
L A Fomina, V V Chernin
AIM: To clarify blood calcium concentrations (BCCs) as an indicator of the functional state of the calcium-regulating system in the concomitant course of recurrent peptic ulcer disease (PUD) and hypertension, by comparing with the severity of a ulcerous process, with changes in regional microcirculation, and with the functions of the stomach. To elucidate the pathogenetic justification for and clinical efficacy of slow calcium channel blockers (SCCBs) in the treatment of this comorbidity...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28279509/-medical-and-surgical-treatment-of-parkinson-s-disease
#18
Luc Defebvre, Caroline Moreau
The treatment of Parkinson's disease is symptomatic with the use of dopaminergic medications: levodopa, dopaminergic agonists and enzymatic inhibitors. At the initial stage, the main goals are to improve the quality of life of patients and delay the onset of motor complications, using a combination of these therapies taking into account both clinical disability and tolerance of different treatments. At the stage of motor and non-motor fluctuations inhibitors of MAO-B and COMT are proposed; amantadine may limit moderate dyskinesias...
March 6, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28276538/valbenazine-for-the-treatment-of-tardive-dyskinesia
#19
N Barquero
Valbenazine (NBI-98854, Ingrezza) is a highly selective vesicular monoamine transporter 2 (VMAT2) inhibitor that modulates dopamine release during nerve communication. The pharmacological target VMAT2 may play an important role in the treatment of tardive dyskinesia (TD), an iatrogenic condition associated with the administration of antipsychotic medication for long periods and characterized by rapid, repetitive, stereotypic, involuntary movements of the face and extremities. There are currently no Food and Drug Administration (FDA)-approved drugs for the treatment of TD...
December 2016: Drugs of Today
https://www.readbyqxmd.com/read/28272743/functional-outcomes-in-children-and-young-people-with-dyskinetic-cerebral-palsy
#20
Elegast Monbaliu, Mary-Grace De La Peña, Els Ortibus, Guy Molenaers, Jan Deklerck, Hilde Feys
AIM: This cross-sectional study aimed to map the functional profile of individuals with dyskinetic cerebral palsy (CP), to determine interrelationships between the functional classification systems, and to investigate the relationship of functional abilities with dystonia and choreoathetosis severity. METHODS: Fifty-five children (<15y) and young people (15-22y) (30 males, 25 females; mean age 14y 6mo, standard deviation 4y 1mo) with dyskinetic CP were assessed using the Gross Motor Function Classification System (GMFCS), Manual Ability Classification System (MACS), Communication Function Classification System (CFCS), Eating and Drinking Ability Classification System (EDACS), and Viking Speech Scale (VSS), as well as the Dyskinesia Impairment Scale...
March 8, 2017: Developmental Medicine and Child Neurology
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