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https://www.readbyqxmd.com/read/28814034/automated-assessment-of-symptom-severity-changes-during-deep-brain-stimulation-dbs-therapy-for-parkinson-s-disease
#1
Paolo Angeles, Yen Tai, Nicola Pavese, Samuel Wilson, Ravi Vaidyanathan
Deep brain stimulation (DBS) is currently being used as a treatment for symptoms of Parkinson's disease (PD). Tracking symptom severity progression and deciding the optimal stimulation parameters for people with PD is extremely difficult. This study presents a sensor system that can quantify the three cardinal motor symptoms of PD - rigidity, bradykinesia and tremor. The first phase of this study assesses whether data recorded from the system during physical examinations can be used to correlate to clinician's severity score using supervised machine learning (ML) models...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813814/toward-quantitative-characterization-of-essential-tremor-for-future-tremor-suppression
#2
Steven K Charles, Daniel W Geiger, Andrew D Davidson, Adam C Pigg, C Paul Curtis, Brendon C Allen
Tremor is the most common movement deficit and manifests in a variety of disorders, including Essential Tremor, Parkinson's Disease, Dystonia, and Cerebellar Ataxia. Although medication and surgical interventions have significantly reduced patient suffering, they are only partially effective and can carry undesired side effects, leaving many patients without satisfactory treatment options. Wearable tremor-suppressing devices could provide an alternative to medication and surgery. Multiple research groups have developed orthotic prototypes to low-pass filter tremor, but these devices have not yet been optimized for in-vivo use...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813703/efficacy-and-safety-of-adjuvant-treatment-with-entacapone-in-advanced-parkinson-s-disease-with-motor-fluctuation-a-systematic-meta-analysis
#3
Jia Li, Zhiwei Lou, Xiaoyang Liu, Yajuan Sun, Jiajun Chen
AIMS: To assess the efficacy and safety of adjuvant treatment with entacapone in the treatment of later Parkinson's disease (PD) patients with motor fluctuation. METHODS: We conducted a systematic review of relevant studies from 8 databases to June 23, 2016. RESULTS: Fourteen studies were included in this review (n = 2,804). The results showed that compared with placebo, adjuvant therapy with entacapone significantly increased on time (p < 0...
August 16, 2017: European Neurology
https://www.readbyqxmd.com/read/28812048/sensorimotor-rhythm-neurofeedback-as-adjunct-therapy-for-parkinson-s-disease
#4
Ingrid H C H M Philippens, Jacqueline A Wubben, Raymond A P Vanwersch, Dave L Estevao, Peter A Tass
Neurofeedback may enhance compensatory brain mechanisms. EEG-based sensorimotor rhythm neurofeedback training was suggested to be beneficial in Parkinson's disease. In a placebo-controlled study in parkinsonian nonhuman primates we here show that sensorimotor rhythm neurofeedback training reduces MPTP-induced parkinsonian symptoms and both ON and OFF scores during classical L-DOPA treatment. Our findings encourage further development of sensorimotor rhythm neurofeedback training as adjunct therapy for Parkinson's disease which might help reduce L-DOPA-induced side effects...
August 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28810585/glutamine-promotes-hsp70-and-inhibits-%C3%AE-synuclein-accumulation-in-pheochromocytoma-pc12-cells
#5
Haiyang Wang, Chongyang Tang, Zhenfeng Jiang, Xiao Zhou, Jianhang Chen, Meng Na, Hong Shen, Zhiguo Lin
Hsp70 regulates α-Synuclein (α-Syn) degeneration in Parkinson's disease (PD), indicating that Hsp70 promotion may be able to prevent or reverse α-Syn-induced toxicity in PD. Additionally, it has been demonstrated that glutamine (Gln) enhances Hsp70 expression. In the present study, Gln-induced Hsp70 promotion in pheochromocytoma was investigated with reverse transcription- quantitative polymerase chain reaction and western blotting methods. Then it was observed whether heat shock factor (HSF)-1 was required for this phenomenon with an RNA interference strategy...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810364/identifying-barriers-to-help-seeking-for-non-motor-symptoms-in-people-with-parkinson-s-disease
#6
Catherine S Hurt, Lorna Rixon, K Ray Chaudhuri, Rona Moss-Morris, Mike Samuel, Richard G Brown
Non-motor symptoms of Parkinson's disease have a significant impact on quality of life. Despite this, many non-motor symptoms remain unreported by patients and consequently untreated. This study explored barriers to help-seeking using two theoretical frameworks, the Common Sense Model of illness perception and Theoretical Domains Framework. A total of 20 participants completed semi-structured interviews to explore symptom beliefs and help-seeking behaviour. Uncertainty about the relationship of non-motor symptoms to Parkinson's disease and lack of clarity around treatments were common...
December 1, 2016: Journal of Health Psychology
https://www.readbyqxmd.com/read/28810246/gper-agonist-g1-attenuates-neuroinflammation-and-dopaminergic-neurodegeneration-in-parkinson-disease
#7
Jing Guan, Beibei Yang, Yi Fan, Ji Zhang
OBJECTIVE: Epidemiological studies have shown that women of reproductive age have much less possibility of developing Parkinson disease (PD) than men. The beneficial effect of estrogen also has been well-described in both culture and animal models of PD. G protein-coupled estrogen receptor (GPER) is a membrane-associated estrogen receptor, and displayed a neuroprotective role in a mouse model of PD. Since GPER is highly expressed in microglia, we speculate that GPER mediates the neuroprotective function of estradiol through suppressing the neuroinflammation of PD...
August 16, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/28807673/gpr55-a-therapeutic-target-for-parkinson-s-disease
#8
Marta Celorrio, Estefanía Rojo-Bustamante, Diana Fernández-Suárez, Elena Sáez, Ander Estella-Hermoso de Mendoza, Christa E Müller, María J Ramírez, Julen Oyarzábal, Rafael Franco, María S Aymerich
The GPR55 receptor is expressed abundantly in the brain, especially in the striatum, suggesting it might fulfill a role in motor function. Indeed, motor behavior is impaired in mice lacking GPR55, which also display dampened inflammatory responses. Abnormal-cannabidiol (Abn-CBD), a synthetic cannabidiol (CBD) isomer, is a GPR55 agonist that may serve as a therapeutic agent in the treatment of inflammatory diseases. In this study, we explored whether modulating GPR55 could also represent a therapeutic approach for the treatment of Parkinson's disease (PD)...
August 11, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28807457/identification-of-pseudobulbar-affect-symptoms-in-the-nursing-home-setting-development-and-assessment-of-a-screening-tool
#9
Carrie Allen, Barbara Zarowitz, Terrence O'Shea, Edward Peterson, Charles Yonan, Fanta Waterman
Pseudobulbar Affect (PBA) is a neurologic condition characterized by involuntary outbursts of crying and/or laughing disproportionate to patient mood or social context. Although an estimated 9% of nursing home residents have symptoms suggestive of PBA, they are not routinely screened. Our goal was to develop an electronic screening tool based upon characteristics common to nursing home residents with PBA identified through medical record data. Nursing home residents with PBA treated with dextromethorphan hydrobromide/quinidine sulfate (n = 140) were compared to age-, gender-, and dementia-diagnosis-matched controls without PBA or treatment (n = 140)...
August 11, 2017: Geriatric Nursing
https://www.readbyqxmd.com/read/28807165/effect-and-mechanism-of-chinese-herbal-medicine-on-parkinson-s-disease
#10
Bai-Yun Zeng
Parkinson's disease is a progressive neurodegenerative disorder. Although both genetic and environmental factors are implicated in the development of Parkinson's disease, the cause of the disease is still unclear. So far conventional treatments to Parkinson's are symptomatic relief and focused mainly on motor symptoms. Chinese herbal medicine has been used to treat many conditions in China, Korea, Japan, and many Southeast Asian countries for 1000 years. During past a few decades, Chinese herbal medicine has gained wider and increasing acceptance within both public and medical profession due to its effectiveness on many conditions in western countries...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28806519/pluronic-p85-f68-micelles-of-baicalein-could-interfere-with-mitochondria-to-overcome-mrp2-mediated-efflux-and-offer-improved-anti-parkinsonian-activity
#11
Tongkai Chen, Ye Li, Chuwen Li, Xiang Yi, Ruibing Wang, Simon Ming Yuen Lee, Ying Zheng
Overexpression of the drug efflux transporter multidrug resistance-associated protein 2 (MRP2) in the gastrointestinal tract and blood-brain barrier compromises the oral delivery of drugs to the circulation system and brain in the treatment of Parkinson's disease (PD). In this study, we aim to develop small-sized Pluronic P85/F68 micelles loaded with baicalein (B-MCs) to overcome MRP2-mediated efflux and to investigate related mechanism, as well as the anti-Parkinsonian efficacy. Spherical and sustained-release B-MCs have a mean particle size of 40...
August 14, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28805762/-a-study-of-combination-treatment-with-nacom-levodopa-carbodope-and-citicoline-in-the-model-of-parkinson-disease-in-rats
#12
V A Kashkin, E V Shekunova, M N Makarova, V G Makarov
AIM: To evaluate the efficacy of the combined use of citicoline (neipilept) and levodopa/carbidopa (nakom) in the rotenone model of Parkinson's disease in rats. MATERIAL AND METHODS: Rotenone was administrated during 14 days in dose 2 mg/kg/day subcutaneously. The duration of treatment was 7 days, intragastrically. Alteration of locomotor behavior components, muscular rigidity in resistance to passive flexion in the ankle joint and signs of extrapyramidal disorders were assessed...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28805590/nonmotor-fluctuations-in-parkinson-s-disease
#13
Christiana Franke, Alexander Storch
The advanced stage of Parkinson's disease (PD) is characterized by motor complications such as motor fluctuations and dyskinesias induced by long-term levodopa treatment. Recent clinical research provides growing evidence that various nonmotor symptoms such as neuropsychiatric, autonomic, and sensory symptoms (particularly pain) also show fluctuations in patients with motor fluctuations (called nonmotor fluctuations or NMF). However, NMF have not yet been adequately considered in routine care of advanced PD patients and only few therapeutic studies are available...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805587/osteoporosis-a-hidden-nonmotor-face-of-parkinson-s-disease
#14
Vinod Metta, Tamara C Sanchez, Chandrasekhara Padmakumar
Osteoporosis is a "hidden nonmotor face" of Parkinson's disease and a cause of considerable morbidity in the older general population and in Parkinson's disease patients. Some regard this as a "hidden epidemic." Women are overrepresented and have considerable problems related to osteoporosis. In general osteoporosis leads to reduced mobility aggravating the motor syndrome of PD. The nonmotor aspects and impact of osteoporosis in PD have remained unexplored. Possible nonmotor consequences include a range of pain syndromes related to local pain, fractures, falls, and injuries as well as pathological fractures and radiculopathy...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805586/sexual-dysfunctions-in-parkinson-s-disease-an-underrated-problem-in-a-much-discussed-disorder
#15
Kalyan B Bhattacharyya, Miguel Rosa-Grilo
Sexual dysfunctions (SDs) are one of the most neglected nonmotor symptoms in Parkinson's disease (PD). A number of reasons including social and cultural factors might explain, at least partially, why SD is still one of the most underrecognized aspects of the condition after 200 years since the very first description by James Parkinson. SD has not been extensively investigated, however, a number of studies have shown a high prevalence of decreased libido, orgasmic dysfunction in both men and women with PD, and erectile dysfunction in male subjects...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805585/understanding-and-treating-pain-syndromes-in-parkinson-s-disease
#16
Marialuisa Gandolfi, Christian Geroin, Angelo Antonini, Nicola Smania, Michele Tinazzi
Pain affects many people with Parkinson's disease (PD) and diminishes their quality of life. Different types of pain have been described, but their related pathophysiological mechanisms remain unclear. The aim of this chapter is to provide movement disorders specialists an update about the pathophysiology of pain and a practical guide for the management of pain syndromes in clinical practice. This chapter reviews current knowledge on the pathophysiological mechanisms of sensory changes and pain in PD, as well as assessment and treatment procedures to manage these symptoms...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805584/constipation-in-parkinson-s-disease
#17
Fabrizio Stocchi, Margherita Torti
Constipation is one of the main and disabling nonmotor symptoms in Parkinson's disease (PD), with a prevalence ranging from 24.6% to 63% according to the different diagnostic criteria used to define chronic constipation. Constipation is currently recognized as a risk factor of PD in relation to the number of evacuation per week and its severity. Moreover, several studies have demonstrated that constipation may precede the occurrence of motor symptoms underlying an earlier involvement of the enteric nervous system and the dorsal motor nucleus of the vagus in the α-synuclein pathology...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805581/nonmotor-parkinson-s-and-future-directions
#18
Nataliya Titova, K Ray Chaudhuri
Nonmotor symptoms (NMS) of Parkinson's disease (PD) are integral to the condition largely regarded as a motor syndrome. A range of NMS underpin the prodromal stage of Parkinson's and are present with variable frequency, range, and nature across the whole journey of a patient with Parkinson's from the onset of the motor disease to palliative stage. These symptoms also are key determinants of quality of life of the patient as well as the carer. Despite this, recognition management and focused treatment of NMS of PD remain poor...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805573/nonmotor-features-in-atypical-parkinsonism
#19
Kailash P Bhatia, Maria Stamelou
Atypical parkinsonism (AP) comprises mainly multiple system atrophy (MSA), progressive supranuclear palsy (PSP), and corticobasal degeneration (CBD), which are distinct pathological entities, presenting with a wide phenotypic spectrum. The classic syndromes are now called MSA-parkinsonism (MSA-P), MSA-cerebellar type (MSA-C), Richardson's syndrome, and corticobasal syndrome. Nonmotor features in AP have been recognized almost since the initial description of these disorders; however, research has been limited...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805572/personalized-medicine-and-nonmotor-symptoms-in-parkinson-s-disease
#20
Nataliya Titova, K Ray Chaudhuri
Parkinson's disease (PD) is a multineurotransmitter dysfunction related disorder resulting in a range of motor and nonmotor symptoms. Phenotypic heterogeneity is pronounced in PD and nonmotor symptoms dominant subtypes have been described. These endophenotypes may be underpinned by considerable nondopaminergic dysfunction; however, conventional treatment of PD continues to be mostly reliant on dopamine replacement strategy or manipulation of brain dopaminergic pathways. Consequently, treatment of many nondopaminergic nonmotor and some motor symptoms remains a key unmet need...
2017: International Review of Neurobiology
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