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https://www.readbyqxmd.com/read/28101657/levodopa-carbidopa-microtablets-in-parkinson-s-disease-a-study-of-pharmacokinetics-and-blinded-motor-assessment
#1
Marina Senek, Sten-Magnus Aquilonius, Håkan Askmark, Filip Bergquist, Radu Constantinescu, Anders Ericsson, Sara Lycke, Alexander Medvedev, Mevludin Memedi, Fredrik Ohlsson, Jack Spira, Jerker Westin, Dag Nyholm
BACKGROUND: Motor function assessments with rating scales in relation to the pharmacokinetics of levodopa may increase the understanding of how to individualize and fine-tune treatments. OBJECTIVES: This study aimed to investigate the pharmacokinetic profiles of levodopa-carbidopa and the motor function following a single-dose microtablet administration in Parkinson's disease. METHODS: This was a single-center, open-label, single-dose study in 19 patients experiencing motor fluctuations...
January 18, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28094865/long-term-side-effects-on-the-temporomandibular-joints-and-orofacial-function-in-patients-with-obstructive-sleep-apnea-treated-with-a-mandibular-advancement-device
#2
Sofie W Knappe, Merete Bakke, Palle Svanholt, Arne Petersson, Liselotte Sonnesen
Patients with obstructive sleep apnea (OSA) in long-term treatment with a mandibular advancement device (MAD) to increase the upper airway space, may develop changes in the temporomandibular joint (TMJ) and the orofacial function due to the protruded jaw position during sleep. The aim was to investigate the influence of long-term MAD treatment on the TMJs, orofacial function and occlusion. This prospective study included 30 men and 13 women (median age 54) with OSA (Apnoea-Hypopnoea Index (AHI): 7-57). They were examined with the Nordic Orofacial Test Screening (NOT-S), the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) and cone beam computed tomography (CBCT) of the TMJs...
January 17, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28093257/selective-preservation-of-cholinergic-mecp2-rescues-specific-rett-syndrome-like-phenotypes-in-mecp2-stop-mice
#3
Huanhuan Zhou, Wei Wu, Ying Zhang, Haiyang He, Zhefeng Yuan, Zhiwei Zhu, Zhengyan Zhao
RTT is a neurodevelopmental disorder characterized by growth regression, motor dysfunction, stereotypic hand movements, and autism features. Typical Rett syndrome (RTT) is predominantly caused by mutations in X-linked MeCP2 gene which encodes methyl-CpG-binding protein 2 (MeCP2). The brain-abundant MeCP2 protein mainly functions as a transcriptional regulator for neurodevelopment-associated genes. Specific functions of MeCP2 in certain neuron types remain to be known. Although cholinergic system is an important modulating system in brain, how MeCP2 in cholinergic neurons contribute to RTT has not been clearly understood...
January 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28090679/effect-of-prucalopride-on-intestinal-gas-tolerance-in-patients-with-functional-bowel-disorders-and-constipation
#4
Carolina Malagelada, Adoración Nieto, Sara Mendez, Anna Accarino, Javier Santos, Juan-R Malagelada, Fernando Azpiroz
BACKGROUND: Patients with functional bowel disorders develop gas retention and symptoms in response to intestinal gas loads that are well tolerated by healthy subjects. Stimulation of 5HT-4 receptors in the gut has both prokinetic and antinociceptive effects. AIM: To determine the effect of prucalopride, a highly selective 5HT-4 agonist, on gas transit and tolerance in women with functional bowel disorders complaining of constipation. METHODS: Twenty-four women with functional bowel disorders complaining of constipation were included in the study...
January 15, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28074898/the-curved-lead-pathway-method-to-enable-a-single-lead-to-reach-any-two-intracranial-targets
#5
Chen-Yu Ding, Liang-Hong Yu, Yuan-Xiang Lin, Fan Chen, Zhang-Ya Lin, De-Zhi Kang
Deep brain stimulation is an effective way to treat movement disorders, and a powerful research tool for exploring brain functions. This report proposes a "curved lead pathway" method for lead implantation, such that a single lead can reach in sequence to any two intracranial targets. A new type of stereotaxic system for implanting a curved lead to the brain of human/primates was designed, the auxiliary device needed for this method to be used in rat/mouse was fabricated and verified in rat, and the Excel algorithm used for automatically calculating the necessary parameters was implemented...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28072705/posterior-only-vertebral-column-resection-for-revision-surgery-in-post-laminectomy-rotokyphoscoliosis-associated-with-late-onset-paraplegia-a-case-report-and-literature-review
#6
Youping Tao, Jigong Wu, Huasong Ma
RATIONALE: Severe post-laminectomy spinal deformity associated with late-onset paraplegia is a complex and rare disorder. Little is known about revision surgery in post-laminectomy rotokyphoscoliosis associated with late-onset paraplegia treated by the single stage posterior-only vertebral column resection (VCR) procedure. PATIENT CONCERNS AND DIAGNOSES: The patient was a 14-year-old male diagnosed as post-laminectomy rotokyphoscoliosis associated with late-onset paraplegia...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28072384/impact-of-cerebellar-atrophy-on-cortical-gray-matter-and-cerebellar-peduncles-as-assessed-by-voxel-based-morphometry-and-high-angular-resolution-diffusion-imaging
#7
Michael Dayan, G Olivito, M Molinari, Mara Cercignani, Marco Bozzali, M Leggio
In recent years the cerebellum has been attributed amore important role in higher-level functions than previously believed. We examined a cohort of patients suffering from cerebellar atrophy resulting in ataxia, with two main objectives: first to investigate which regions of the cerebrum were affected by the cerebellar degeneration, and second to assess whether diffusion magnetic resonance imaging (dMRI) metrics within the medial (MCP) and superior cerebellar peduncle (SCP) - namely fractional anisotropy (FA) and radial diffusivity (RD) - could be used as a biomarker in patients with this condition...
October 2016: Functional Neurology
https://www.readbyqxmd.com/read/28069028/robot-aided-developmental-assessment-of-wrist-proprioception-in-children
#8
Francesca Marini, Valentina Squeri, Pietro Morasso, Claudio Campus, Jürgen Konczak, Lorenzo Masia
BACKGROUND: Several neurodevelopmental disorders and brain injuries in children have been associated with proprioceptive dysfunction that will negatively affect their movement. Unfortunately, there is lack of reliable and objective clinical examination protocols and our current knowledge of how proprioception evolves in typically developing children is still sparse. METHODS: Using a robotic exoskeleton, we investigated proprioceptive acuity of the wrist in a group of 49 typically developing healthy children (8-15 years), and a group of 40 young adults...
January 9, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28065687/restless-legs-syndrome-and-cardiovascular-disease-a-research-roadmap
#9
REVIEW
Daniel J Gottlieb, Virend K Somers, Naresh M Punjabi, John W Winkelman
In this paper, we first critically appraise the epidemiologic literature examining the association of restless legs syndrome (RLS) with cardiovascular disease (CVD) and then consider whether lessons learned from the study of cardiovascular consequences of other sleep disorders might inform a research agenda to examine the potential mechanisms of cardiovascular morbidity of RLS. Cross-sectional and longitudinal studies are both mixed as to whether there is a meaningful association of RLS and CVD. On the other hand, numerous cross-sectional and longitudinal observational studies have shown a strong association of obstructive sleep apnea (OSA) with CVD risk...
October 27, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28065402/genetics-of-restless-legs-syndrome
#10
Juliane Winkelmann, Barbara Schormair, Lan Xiong, Patrick A Dion, David B Rye, Guy A Rouleau
At the outset of genetic studies in restless legs syndrome (RLS), the disorder was assumed to be a classical monogenic disorder that runs in families. However, years of family studies did not reveal any causally-related genes or genetic variants. The advent of high-throughput genotyping technology led to a change; genome-wide association studies in large case-control samples became feasible, which led to the identification of first genetic risk variants for RLS. Variants detected by this approach are common ones, which that individually confer only a minor increase in risk of disease...
November 12, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28062908/role-of-altered-cerebello-thalamo-cortical-network-in-the-neurobiology-of-essential-tremor
#11
Abhishek Lenka, Ketaki Swapnil Bhalsing, Rajanikant Panda, Ketan Jhunjhunwala, Rajini M Naduthota, Jitender Saini, Rose Dawn Bharath, Ravi Yadav, Pramod Kumar Pal
INTRODUCTION: Essential tremor (ET) is the most common movement disorder among adults. Although ET has been recognized as a mono-symptomatic benign illness, reports of non-motor symptoms and non-tremor motor symptoms have increased its clinical heterogeneity. The neural correlates of ET are not clearly understood. The aim of this study was to understand the neurobiology of ET using resting state fMRI. METHODS: Resting state functional MR images of 30 patients with ET and 30 age- and gender-matched healthy controls were obtained...
January 6, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28062220/sleep-lung-function-and-quality-of-life-in-patients-with-myasthenia-gravis-a-cross-sectional-study
#12
Ezequiel Fernandes Oliveira, Sergio Roberto Nacif, Jessica Julioti Urbano, Anderson Soares Silva, Claudia Santos Oliveira, Eduardo Araujo Perez, Melissa Nunes Polaro, Berenice Cataldo Oliveira Valerio, Roberto Stirbulov, Giuseppe Insalaco, Acary Sousa Bulle Oliveira, Luis Vicente Franco Oliveira
The purpose of this study was to investigate the physiological variables of lung function, respiratory muscle strength, and sleep in clinically stable patients with myasthenia gravis. This was a prospective cross-sectional study conducted in accordance with the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement. Patients adhering to the eligibility criteria were consecutively recruited from the Research Department of Neuromuscular Diseases at the Federal University of Sao Paulo and the Department of Neurology at Santa Casa de Misericordia of Sao Paulo and were referred to the Nove de Julho University Sleep Laboratory (Sao Paulo, Brazil)...
November 25, 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28059473/striosomal-dysfunction-affects-behavioral-adaptation-but-not-impulsivity-evidence-from-x-linked-dystonia-parkinsonism
#13
Christian Beste, Moritz Mückschel, Raymond Rosales, Aloysius Domingo, Lillian Lee, Arlene Ng, Christine Klein, Alexander Münchau
BACKGROUND: Executive functions including behavioral adaptation and impulse control are commonly impaired in movement disorders caused by striatal pathology. However, as yet it is unclear what aspects of behavioral abnormalities are related to pathology in which striatal subcomponent, that is, the matrix and the striosomes. We therefore studied cognitive control in X-linked dystonia-parkinsonism, a model disease of striosomal degeneration, using behavioral paradigms and EEG. METHODS: We studied genetically confirmed X-linked dystonia-parkinsonism patients (N = 21) in their early disease stages and healthy matched controls...
January 6, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28059471/specific-patterns-of-neuronal-loss-in-the-pulvinar-nucleus-in-dementia-with-lewy-bodies
#14
Daniel Erskine, Alan J Thomas, Johannes Attems, John-Paul Taylor, Ian G McKeith, Christopher M Morris, Ahmad A Khundakar
BACKGROUND: Complex visual hallucinations occur in 70%-80% of dementia with Lewy bodies patients and significantly affect well-being. Despite the prevalence of visual hallucinations in dementia with Lewy bodies, the neuropathological basis of this phenomenon is poorly understood. The pulvinar nucleus of the thalamus has not previously been neuropathologically examined, but has been linked to visual hallucinations in dementia with Lewy bodies. The objective of this study was to investigate whether neuropathological or morphometric changes occur in the pulvinar nucleus in dementia with Lewy bodies cases that may contribute to visual hallucinations...
January 6, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28057929/a-novel-role-for-the-dna-repair-gene-rad51-in-netrin-1-signalling
#15
K A Glendining, D Markie, R J M Gardner, E A Franz, S P Robertson, C L Jasoni
Mutations in RAD51 have recently been linked to human Congenital Mirror Movements (CMM), a developmental disorder of the motor system. The only gene previously linked to CMM encodes the Netrin-1 receptor DCC, which is important for formation of corticospinal and callosal axon tracts. Thus, we hypothesised that Rad51 has a novel role in Netrin-1-mediated axon development. In mouse primary motor cortex neurons, Rad51 protein was redistributed distally down the axon in response to Netrin-1, further suggesting a functional link between the two...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28057299/mechanisms-of-parkinson-s-disease-lessons-from-drosophila
#16
V L Hewitt, A J Whitworth
The power of Drosophila genetics has attracted attention in tackling important biomedical challenges such as the understanding and prevention of neurodegenerative diseases. Parkinson's disease (PD) is the most common neurodegenerative movement disorder which results from the relentless degeneration of midbrain dopaminergic neurons. Over the past two decades tremendous advances have been made in identifying genes responsible for inherited forms of PD. The ease of genetic manipulation in Drosophila has spurred the development of numerous models of PD, including expression of human genes carrying pathogenic mutations or the targeted mutation of conserved orthologs...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28053030/tau-isoforms-imbalance-impairs-the-axonal-transport-of-the-amyloid-precursor-protein-in-human-neurons
#17
Valentina Lacovich, Sonia L Espindola, Matías Alloatti, Victorio Pozo Devoto, Lucas E Cromberg, Mária E Čarná, Giancarlo Forte, Jean-Marc Gallo, Luciana Bruno, Gorazd B Stokin, M Elena Avale, Tomás L Falzone
: Tau, as a microtubule (MT)-associated protein, participates in key neuronal functions such as the regulation of MT dynamics, axonal transport, and neurite outgrowth. Alternative splicing of exon 10 in the tau primary transcript gives rise to protein isoforms with three (3R) or four (4R) MT binding repeats. Although tau isoforms are balanced in the normal adult human brain, imbalances in 3R:4R ratio have been tightly associated with the pathogenesis of several neurodegenerative disorders, yet the underlying molecular mechanisms remain elusive...
January 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28052315/deficits-in-temporal-processing-correlate-with-clinical-progression-in-huntington-s-disease
#18
P V Agostino, E M Gatto, M Cesarini, J L Etcheverry, A Sanguinetti, D A Golombek
OBJECTIVES: Precise temporal performance is crucial for several complex tasks. Time estimation in the second-to-minutes range-known as interval timing-involves the interaction of the basal ganglia and the prefrontal cortex via dopaminergic-glutamatergic pathways. Patients with Huntington's disease (HD) present deficits in cognitive and motor functions that require fine control of temporal processing. The objective of the present work was to assess temporal cognition through a peak-interval time (PI) production task in patients with HD and its potential correlation with the Unified Huntington's Disease Rating Scale (UHDRS)...
January 3, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28049371/structure-and-interactions-of-reca-plasticity-revealed-by-molecular-dynamics-simulations
#19
Anu V Chandran, S Jayanthi, M Vijayan
Eleven independent simulations, each involving three consecutive molecules in the RecA filament, carried out on the protein from Mycobacterium tuberculosis, Mycobacterium smegmatis and Escherichia coli and their Adenosine triphosphate (ATP) complexes, provide valuable information which is complementary to that obtained from crystal structures, in addition to confirming the robust common structural framework within which RecA molecules from different eubacteria function. Functionally important loops, which are largely disordered in crystal structures, appear to adopt in each simulation subsets of conformations from larger ensembles...
January 4, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28044203/advances-with-neonatal-aerodigestive-science-in-the-pursuit-of-safe-swallowing-in-infants-invited-review
#20
Sudarshan R Jadcherla
Feeding, swallowing, and airway protection are three distinct entities. Feeding involves a process of sequential, neurosensory, and neuromotor interactions of reflexes and behaviors facilitating ingestion. Swallowing involves anterograde bolus movement during oral-, pharyngeal-, and esophageal phases of peristalsis into stomach. During these events, coordination with airway protection is vital for homeostasis in clearing any material away from airway vicinity. Neurological-airway-digestive inter-relationships are critical to the continuum of successful feeding patterns during infancy, either in health or disease...
January 2, 2017: Dysphagia
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