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https://www.readbyqxmd.com/read/29145189/rem-sleep-behavior-disorder
#1
Claudio L Bassetti, Panagiotis Bargiotas
Rapid eye movement sleep behavior disorder (RBD) is a brain disorder, characterized by the dream enactment during rapid eye movement (REM) sleep due to a lack of physiologic muscle atonia and increased muscle twitching. Schenk was the first to describe this disorder in 1986; however, few authors reported in the 1970-1980s loss of physiological muscle atonia combined with dream enactment in the course of brainstem disorders and as a consequence of alcoholism and antidepressant treatment. RBD affects less than 1% of the adult population, but can be found in up to 25-50% of neurodegenerative disorders including Parkinson's disease, multisystem atrophy, and dementia with Lewy body...
2018: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/29144106/cognitive-reserve-as-a-variable-impacting-the-effectiveness-of-rehabilitation-on-balance-in-parkinson-s-disease
#2
Giulia Piccinini, Isabella Imbimbo, Diego Ricciardi, Daniele Coraci, Claudia Santilli, Maria R Lo Monaco, Claudia Loreti, Maria C Vulpiani, Maria C Silveri, Luca Padua
BACKGROUND: Cognitive reserve (CR) can be considered an active expression of brain resilience in response to damage. Several studies have shown the influence of CR on cognitive impairment and its relationship with cognitive function in Parkinson's disease (PD). AIM: To show if CR influences the effectiveness of balance rehabilitation in PD patients who performed a conventional rehabilitative treatment. DESIGN: Observational longitudinal study...
November 16, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29143418/identification-of-swallowing-disorders-in-early-and-mid-stage-parkinson-s-disease-using-pattern-recognition-of-pharyngeal-high-resolution-manometry-data
#3
C A Jones, M R Hoffman, L Lin, S Abdelhalim, J J Jiang, T M McCulloch
BACKGROUND: Parkinson's disease (PD) can cause severe dysphagia, especially later in disease progression. Early identification of swallowing dysfunction may lead to earlier intervention. Pharyngeal high-resolution manometry (HRM) provides complementary information to videofluoroscopy, with advantages of being quantitative and objective. Artificial neural network (ANN) classification can examine non-linear relationships among multiple variables with relatively low bias. We evaluated if ANN techniques could differentiate between patients with PD and healthy controls...
November 16, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29143216/self-perception-and-determinants-of-color-vision-in-parkinson-s-disease
#4
Alexander U Brandt, Hanna G Zimmermann, Timm Oberwahrenbrock, Justine Isensee, Thomas Müller, Friedemann Paul
Visual dysfunction is common in patients with Parkinson's disease (PD). The objective of this study was to investigate the perceived impact of visual dysfunction and especially color vision loss on PD patients, and to identify retinal and disease factors associated with color vision. Thirty PD patients and thirty-four healthy controls were included. Participants performed the Farnsworth-Munsell Hue-100 test (FMT). Patients answered the National Eye Institute Visual Function Questionnaire (NEI-VFQ), Unified Parkinson's Disease Rating Scale (UPDRS) assessment, and underwent optical coherence tomography with measurement of retinal nerve fiber layer, ganglion cell layer + inner plexiform layer (GCIPL), and outer nuclear and photoreceptor layer...
November 15, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29141124/the-effects-of-valbenazine-in-participants-with-tardive-dyskinesia-results-of-the-1-year-kinect-3-extension-study
#5
Stewart A Factor, Gary Remington, Cynthia L Comella, Christoph U Correll, Joshua Burke, Roland Jimenez, Grace S Liang, Christopher F O'Brien
BACKGROUND: Valbenazine, a highly selective vesicular monoamine transporter 2 inhibitor, is approved for the treatment of tardive dyskinesia. This is the first report of long-term effects in adults with tardive dyskinesia. METHODS: Participants with a DSM-IV diagnosis of schizophrenia, schizoaffective disorder, or a mood disorder who completed the 6-week, double-blind, placebo-controlled period of KINECT 3 were eligible to enter the 42-week valbenazine extension (VE) period and subsequent 4-week washout period...
November 14, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29140302/danger-high-voltage-the-role-of-voltage-gated-calcium-channels-in-central-nervous-system-pathology
#6
REVIEW
Andrea Schampel, Stefanie Kuerten
Voltage-gated calcium channels (VGCCs) are widely distributed within the central nervous system (CNS) and presumed to play an important role in the pathophysiology of a broad spectrum of CNS disorders including Alzheimer's and Parkinson's disease as well as multiple sclerosis. Several calcium channel blockers have been in clinical practice for many years so that their toxicity and side effects are well studied. However, these drugs are primarily used for the treatment of cardiovascular diseases and most if not all effects on brain functions are secondary to peripheral effects on blood pressure and circulation...
November 15, 2017: Cells
https://www.readbyqxmd.com/read/29139079/neuromodulatory-procedures-for-gait-disorders-in-parkinson-s-disease
#7
REVIEW
Patrick Santens
The neurophysiology of gait is complex and involves numerous structures in the central nervous system. Gait disorders occur frequently in Parkinson's disease (PD), and their management may become cumbersome, especially in the more advanced stages. Neuromodulatory treatments, including deep brain stimulation, cortical stimulation and spinal cord stimulation, are reviewed with respect to their effectiveness to improve gait in PD patients. Although positive effects have been reported for all of these procedures, many issues remain in view of methodological heterogeneity, variability in outcome measures and sample size...
November 14, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29138676/resveratrol-modulation-of-protein-expression-in-parkin-mutant-human-skin-fibroblasts-a-proteomic-approach
#8
Daniele Vergara, Antonio Gaballo, Anna Signorile, Anna Ferretta, Paola Tanzarella, Consiglia Pacelli, Marco Di Paola, Tiziana Cocco, Michele Maffia
In this study, we investigated by two-dimensional gel electrophoresis (2-DE) and mass spectrometry (MS) analysis the effects of resveratrol treatment on skin primary fibroblasts from a healthy subject and from a parkin-mutant early onset Parkinson's disease patient. Parkin, an E3 ubiquitin ligase, is the most frequently mutated gene in hereditary Parkinson's disease. Functional alteration of parkin leads to impairment of the ubiquitin-proteasome system, resulting in the accumulation of misfolded or aggregated proteins accountable for the neurodegenerative process...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29138643/interactions-of-desmethoxyyangonin-a-secondary-metabolite-from-renealmia-alpinia-with-human-monoamine-oxidase-a-and-oxidase-b
#9
Narayan D Chaurasiya, Francisco León, Yuanqing Ding, Isabel Gómez-Betancur, Dora Benjumea, Larry A Walker, Stephen J Cutler, Babu L Tekwani
Renealmia alpinia (Zingiberaceae), a medicinal plant of tropical rainforests, is used to treat snakebites and other injuries and also as a febrifuge, analgesic, antiemetic, antiulcer, and anticonvulsant. The dichloromethane extract of R. alpinia leaves showed potent inhibition of human monoamine oxidases- (MAOs-) A and B. Phytochemical studies yielded six known compounds, including pinostrobin 1, 4'-methyl ether sakuranetin 2, sakuranetin 3, pinostrobin chalcone 4, yashabushidiol A 5, and desmethoxyyangonin 6...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29138117/melatonin-protects-against-behavioral-deficits-dopamine-loss-and-oxidative-stress-in-homocysteine-model-of-parkinson-s-disease
#10
Rajib Paul, Banashree Chetia Phukan, Arokiasamy Justin Thenmozhi, Thamilarasan Manivasagam, Pallab Bhattacharya, Anupom Borah
AIM: Hyperhomocysteinemia and homocysteine (Hcy) mediated dopaminergic neurotoxicity is a matter of concern in the pathophysiology of Parkinson's disease (PD). Our previous study established the involvement of oxidative stress in the substantia nigra (SN) of Hcy rat model of PD; however, the role of antioxidants, such as melatonin, was not tested in this model. MAIN METHODS: Melatonin (10, 20 and 30mg/kg, i.p.) was administered to rats injected with Hcy in right SN (1...
November 11, 2017: Life Sciences
https://www.readbyqxmd.com/read/29138080/muscarinic-receptor-subtype-distribution-in-the-central-nervous-system-and-relevance-to-aging-and-alzheimer-s-disease
#11
REVIEW
E P Lebois, C Thorn, J R Edgerton, M Popiolek, S Xi
Muscarinic acetylcholine receptors (mAChRs) are G proteincoupled receptors (GPCRs) that mediate the metabotropic actions of acetylcholine (ACh). There are five subtypes of mAChR, M1 - M5, which are expressed throughout the central nervous system (CNS) on numerous cell types and represent promising treatment targets for a number of different diseases, disorders, and conditions of the CNS. Although the present review will focus on Alzheimer's disease (AD) and amnestic mild cognitive impairment (aMCI), a number of conditions such as Parkinson's disease (PD), schizophrenia, and others represent significant unmet medical needs for which selective muscarinic agents could offer therapeutic benefits...
November 11, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29137045/the-significance-of-uric-acid-in-the-diagnosis-and-treatment-of-parkinson-disease-an-updated-systemic-review
#12
Zhange Yu, Shuai Zhang, Dongdong Wang, Meng Fan, Fuqiang Gao, Wei Sun, Zirong Li, Shiliang Li
BACKGROUND: Parkinson disease (PD) is a neurodegenerative disease characterized by chronic and progressive loss of dopaminergic neurons in substansia nigra pars compacta. Oxidative stress is proposed to play a critical role in the pathogenesis of PD. Uric acid (UA), as an important physiological antioxidant, is identified a molecular predictor associated with a decreased risk and a slower disease progression for PD and potential neuroprotectant of PD by increasing epidemiological and clinical evidences...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136779/juglanin-ameliorates-lps-induced-neuroinflammation-in-animal-models-of-parkinson-s-disease-and-cell-culture-via-inactivating-tlr4-nf-%C3%AE%C2%BAb-pathway
#13
Fang-Xue Zhang, Ren-Shi Xu
Parkinson's disease (PD) is a common neuro-degenerative disorder, and novel therapeutic targets are required for the treatment of PD. Juglanin is a natural compound extracted from the crude Polygonum aviculare, exhibiting anti-inflammatory, anti-oxidant and anti-cancer activities. In our study, PD in mice was induced by systemic LPS treatment as evidenced by enhanced α-synuclein and reduced tyrosine hydroxylase (TH), which were reversed by juglanin treatment. Moreover, juglanin administration attenuated LPS-caused behavioral and memory impairments and reduced LPS-induced enhancement of neuro-degenerative markers, including amyloid β (Aβ) and p-Tau...
November 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29134342/an-introduction-and-overview-of-machine-learning-in-neurosurgical-care
#14
REVIEW
Joeky T Senders, Mark M Zaki, Aditya V Karhade, Bliss Chang, William B Gormley, Marike L Broekman, Timothy R Smith, Omar Arnaout
BACKGROUND: Machine learning (ML) is a branch of artificial intelligence that allows computers to learn from large complex datasets without being explicitly programmed. Although ML is already widely manifest in our daily lives in various forms, the considerable potential of ML has yet to find its way into mainstream medical research and day-to-day clinical care. The complex diagnostic and therapeutic modalities used in neurosurgery provide a vast amount of data that is ideally suited for ML models...
November 13, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29133763/effects-of-melatonin-levels-on-neurotoxicity-of-the-medial-prefrontal-cortex-in-a-rat-model-of-parkinson-s-disease
#15
Yan Li, Shu-Mei Wang, Lei Guo, Jian Zhu, Ying Wang, Lei Li, Yan-Xin Zhao
BACKGROUND: Damage of the medial prefrontal cortex (mPFC) results in similar characteristics to the cognitive deficiency seen with the progress of Parkinson's disease (PD). Since the course of mPFC damage is still unclear, our study aimed to investigate the effects of melatonin (MT) on neurotoxicity in the mPFC of a rat model of PD. METHODS: One hundred and fifty-four normal, male Wistar rats were randomly divided into the following five groups: normal + normal saline (NS), normal + 6-hydroxydopamine (6-OHDA), sham pinealectomy (PX) + 6-OHDA, PX + 6-OHDA, and MT + 6-OHDA...
November 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29133700/wearing-off-a-complex-phenomenon-often-poorly-recognized-in-parkinson-s-disease-a-study-with-the-woq-19-questionnaire
#16
Michele Pistacchi, Manuela Gioulis, Flavio Sanson, Sandro Z Marsala
BACKGROUND: 'Wearing off' refers to the phenomenology of movement disorders in Parkinson's disease (PD) that appears early and is much commoner than generally believed. It may be present in the form of either motor symptoms or non-motor symptoms. AIM: To investigate the utility of wearing-off questionnaire (WOQ-19, Italian version) in the outpatient clinical practice to assess the suitability of different combinations of treatment, in various stages of PD. METHODS: 73 consecutive patients (58% male and 42% female) suffering from PD were recruited through the Santorso Hospital and San Martino Hospital from September 2012 to March 2014...
November 2017: Neurology India
https://www.readbyqxmd.com/read/29133106/considerations-for-general-anaesthesia-in-parkinson-s-disease
#17
REVIEW
Daniel P Roberts, Simon J G Lewis
Parkinson's disease is a common neurodegenerative disorder in the elderly which when present has a significant influence on surgical management. These patients necessitate additional perioperative and anaesthetic considerations across disease specific domains as well as in relation to the respiratory and cardiovascular systems. This brief review focuses on the factors which contribute to perioperative morbidity, including the use of medications that may exacerbate symptoms or adversely interact with treatments for Parkinson's disease...
November 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29132545/nanoformulation-a-useful-therapeutic-strategy-for-improving-neuroprotection-and-the-neurorestorative-potential-in-experimental-models-of-parkinson-s-disease
#18
Jose V Lafuente, Catalina Requejo, Alejandro Carrasco, Harkaitz Bengoetxea
Parkinson's disease (PD) is the second most frequent neurodegenerative disorder, but current therapies are only symptomatic. Experimental models are necessary to go deeper in the comprehension of pathophysiological mechanism and to assess new therapeutic strategies. The unilateral 6-hydroxydopamine (6-OHDA) lesion either in medial forebrain bundle (MFB) or into the striatum in rats affords to study various stages of PD depending on the evolution time lapsed. A promising alternative to address the neurodegenerative process is the use of neurotrophic factors; but its clinical use has been limited due to its short half-life and rapid degradation after in vivo administration, along with difficulties for crossing the blood-brain barrier (BBB)...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/29130486/rtp801-is-a-critical-factor-in-the-neurodegeneration-process-of-a53t-alpha-synuclein-in-a-mouse-model-of-parkinson-s-disease-under-chronic-restraint-stress
#19
Zhao Zhang, Shi-Feng Chu, Sha-Sha Wang, Yi-Na Jiang, Yan Gao, Peng-Fei Yang, Qi-Di Ai, Nai-Hong Chen
BACKGROUND AND PURPOSE: The incidence of Parkinson's disease exhibited a younger tendency in recent years with the constantly increased stressors of modern society, but this relationship remains obscured. We performed this study to investigate whether stress contributes to this tendency and identify the executor during this process. EXPERIMENTAL APPROACH: Ten-month-old α-synuclein A53T mice, a PD mice model, were treated with chronic restraint stress (CRS) to simulate a PD-sensitive person with constant stress stimulation...
November 11, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29130466/-safinamide-from-daily-clinical-practice-first-clinical-steps
#20
J Pagonabarraga, J Kulisevsky
INTRODUCTION: The management of motor complications in Parkinson's disease (PD) is still limited. Safinamide, a new drug that has MAO-B inhibition and antiglutamatergic effects through inhibition of sodium channels, has shown efficacy for the treatment of fluctuations at doses of 50-100 mg/day. PATIENTS AND METHODS: From daily clinical practice, we describe the efficacy and tolerability of safinamide at three months in PD patients with motor complications. Efficacy was assessed by the Clinical Global Impression of Change scale and change in 'off' time during the daytime...
November 16, 2017: Revista de Neurologia
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