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Functional neurological disorder

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https://www.readbyqxmd.com/read/28544614/proteomic-profiling-of-the-hypothalamus-in-two-mouse-models-of-narcolepsy
#1
Sausan Azzam, Daniela Schlatzer, David Nethery, Dania Saleh, Xiaolin Li, Afaf Akladious, Mark R Chance, Kingman P Strohl
Narcolepsy is a disabling neurological disorder of sleepiness linked to the loss of neurons producing orexin neuropeptides in the hypothalamus. Two well characterized phenotypic mouse models of narcolepsy, loss-of-function (orexin-knockout) and progressive loss of orexin (orexin/ataxin-3) exist. The open question is whether the proteomics signatures of the hypothalamus would be different between the two models. To address this gap, we utilized a label-free proteomics approach and conducted a hypothalamic proteome analysis by comparing each disease model to that of wild type...
May 22, 2017: Proteomics
https://www.readbyqxmd.com/read/28543982/the-rna-binding-protein-caper-is-required-for-sensory-neuron-development-in-drosophila-melanogaster
#2
Eugenia C Olesnicky, Jeremy M Bono, Laura Bell, Logan T Schachtner, Meghan C Lybecker
BACKGROUND: Alternative splicing mediated by RNA-binding proteins (RBPs) is emerging as a fundamental mechanism for the regulation of gene expression. Alternative splicing has been shown to be a widespread phenomenon that facilitates the diversification of gene products in a tissue specific manner. Although defects in alternative splicing are rooted in many neurological disorders, only a small fraction of splicing factors have been investigated in detail. RESULTS: We find that the splicing factor Caper is required for the development of multiple different mechanosensory neuron subtypes at multiple life stages in Drosophila melanogaster...
May 23, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28540688/machine-learning-techniques-in-exploring-microrna-gene-discovery-targets-and-functions
#3
Sumi Singh, Ryan G Benton, Anurag Singh, Anshuman Singh
In recent years, the role of miRNAs in post-transcriptional gene regulation has provided new insights into the understanding of several types of cancers and neurological disorders. Although miRNA research has gathered great momentum since its discovery, traditional biological methods for finding miRNA genes and targets continue to remain a huge challenge due to the laborious tasks and extensive time involved. Fortunately, advances in computational methods have yielded considerable improvements in miRNA studies...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28540600/microglial-interferon-signaling-and-white-matter
#4
Ashley McDonough, Richard V Lee, Jonathan R Weinstein
Microglia, the resident immune cells of the CNS, are primary regulators of the neuroimmune response to injury. Type I interferons (IFNs), including the IFNαs and IFNβ, are key cytokines in the innate immune system. Their activity is implicated in the regulation of microglial function both during development and in response to neuroinflammation, ischemia, and neurodegeneration. Data from numerous studies in multiple sclerosis (MS) and stroke suggest that type I IFNs can modulate the microglial phenotype, influence the overall neuroimmune milieu, regulate phagocytosis, and affect blood-brain barrier integrity...
May 25, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28539691/goals-set-by-patients-using-the-icf-model-before-receiving-botulinum-injections-and-their-relation-to-spasticity-distribution
#5
Kevin Choi, Jaclyn Peters, Andrew Tri, Elizabeth Chapman, Ayako Sasaki, Farooq Ismail, Chris Boulias, Shannon Reid, Chetan P Phadke
Purpose: Goal Attainment Scaling (GAS) is used to assess functional gains in response to treatment. Specific characteristics of the functional goals set by individuals receiving botulinum toxin type A (BoNTA) injections for spasticity management are unknown. The primary objectives of this study were to describe the characteristics of the goals set by patients before receiving BoNTA injections using the International Classification of Functioning, Disability and Health (ICF) and to determine whether the pattern of spasticity distribution affected the goals set...
2017: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/28539064/recent-advances-in-applying-mass-spectrometry-and-systems-biology-to-determine-brain-dynamics
#6
Enzo Scifo, Giulio Calza, Martin Fuhrmann, Rabah Soliymani, Marc Baumann, Maciej Lalowski
Neurological disorders encompass various pathologies which disrupt normal brain physiology and function. Poor understanding of their underlying molecular mechanisms and their societal burden argues for the necessity of novel prevention strategies, early diagnostic techniques and alternative treatment options to reduce the scale of their expected increase. Areas Covered: This review scrutinizes mass spectrometry based approaches used to investigate brain dynamics in various conditions, including neurodegenerative and neuropsychiatric disorders...
May 24, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28538662/maternal-factors-that-induce-epigenetic-changes-contribute-to-neurological-disorders-in-offspring
#7
REVIEW
Avijit Banik, Deepika Kandilya, Seshadri Ramya, Walter Stünkel, Yap Seng Chong, S Thameem Dheen
It is well established that the regulation of epigenetic factors, including chromatic reorganization, histone modifications, DNA methylation, and miRNA regulation, is critical for the normal development and functioning of the human brain. There are a number of maternal factors influencing epigenetic pathways such as lifestyle, including diet, alcohol consumption, and smoking, as well as age and infections (viral or bacterial). Genetic and metabolic alterations such as obesity, gestational diabetes mellitus (GDM), and thyroidism alter epigenetic mechanisms, thereby contributing to neurodevelopmental disorders (NDs) such as embryonic neural tube defects (NTDs), autism, Down's syndrome, Rett syndrome, and later onset of neuropsychological deficits...
May 24, 2017: Genes
https://www.readbyqxmd.com/read/28536800/causes-and-preventive-measures-of-symptomatic-spinal-epidural-haematoma-after-spinal-surgery
#8
Xiao-Jun Zeng, Wei Wang, Zhou Zhao, Ming Li
STUDY DESIGN: This was a retrospective study to evaluate clinical characteristics of patients who developed symptomatic spinal epidural haematoma (SSEH) after spinal surgery. OBJECTIVE: The objective was to determine clinical parameters associated with the development of SSEH after spinal surgery, and to discuss clinical management and possible preventive measures. Although the incidence rate of SSEH is low, the neurological sequelae are devastating. There are limited reports which identify risk factors for SSEH because of the rarity of the condition...
May 24, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28536506/axonal-membranes-and-their-domains-assembly-and-function-of-the-axon-initial-segment-and-node-of-ranvier
#9
REVIEW
Andrew D Nelson, Paul M Jenkins
Neurons are highly specialized cells of the nervous system that receive, process and transmit electrical signals critical for normal brain function. Here, we review the intricate organization of axonal membrane domains that facilitate rapid action potential conduction underlying communication between complex neuronal circuits. Two critical excitable domains of vertebrate axons are the axon initial segment (AIS) and the nodes of Ranvier, which are characterized by the high concentrations of voltage-gated ion channels, cell adhesion molecules and specialized cytoskeletal networks...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28536502/lost-in-translation-defects-in-transfer-rna-modifications-and-neurological-disorders
#10
REVIEW
Andrea Bednářová, Marley Hanna, Isabella Durham, Tara VanCleave, Alexis England, Anathbandhu Chaudhuri, Natraj Krishnan
Transfer RNAs (tRNAs) are key molecules participating in protein synthesis. To augment their functionality they undergo extensive post-transcriptional modifications and, as such, are subject to regulation at multiple levels including transcription, transcript processing, localization and ribonucleoside base modification. Post-transcriptional enzyme-catalyzed modification of tRNA occurs at a number of base and sugar positions and influences specific anticodon-codon interactions and regulates translation, its efficiency and fidelity...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28535912/effect-of-induced-high-myopia-on-functional-mri-signal-changes
#11
Ali Mirzajani, Mohammad Ghorbani, Behrouz Rasuli, Ali Mahmoud-Pashazadeh
PURPOSE: The current study evaluated the effect of lens-induced high myopia (IHM) on the activity of the occipital visual cortex during two visual stimuli presentations to the subjects. This was done by measuring the Blood Oxygenation Level Dependent (BOLD) signal using functional MRI (fMRI). METHODS: BOLD contrast fMRI was performed with a 1.5T MRI scanner on 12 emmetropic subjects (refractive error <±0.25Diopter) with no history of neurologic disorder. IHM conditions were applied to subjects by three convex lenses of +5D, +7D and +10D...
May 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28534925/osmotin-loaded-magnetic-nanoparticles-with-electromagnetic-guidance-for-the-treatment-of-alzheimer-s-disease
#12
Faiz Ul Amin, Ali Kafash Hoshiar, Ton Duc Do, Yeongil Noh, Shahid Ali Shah, Muhammad Sohail Khan, Jungwon Yoon, Myeong Ok Kim
Alzheimer's disease (AD) is the most prevalent age-related neurodegenerative disease, pathologically characterized by the accumulation of aggregated amyloid beta (Aβ) in the brain. Here, we describe for the first time the development of a new, pioneering nanotechnology-based drug delivery approach for potential therapies for neurodegenerative diseases, particularly AD. We demonstrated the delivery of fluorescent carboxyl magnetic Nile Red particles (FMNPs) to the brains of normal mice using a functionalized magnetic field (FMF) composed of positive- and negative-pulsed magnetic fields generated by electromagnetic coils...
May 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/28534301/effects-of-acetyl-l-carnitine-in-diabetic-neuropathy-and-other-geriatric-disorders
#13
REVIEW
G Sergi, S Pizzato, F Piovesan, C Trevisan, N Veronese, E Manzato
A long history of diabetes mellitus and increasing age are associated with the onset of diabetic neuropathy, a painful and highly disabling complication with a prevalence peaking at 50% among elderly diabetic patients. Acetyl-L-carnitine (ALC) is a molecule derived from the acetylation of carnitine in the mitochondria that has an essential role in energy production. It has recently been proposed as a therapy to improve the symptoms of diabetic neuropathy. ALC is widely distributed in mammalian tissues, including the brain, blood-brain barrier, brain neurons, and astrocytes...
May 22, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28534273/tauroursodeoxycholic-acid-enhances-mitochondrial-biogenesis-neural-stem-cell-pool-and-early-neurogenesis-in-adult-rats
#14
Rita Soares, Filipa F Ribeiro, Sara Xapelli, Tânia Genebra, Maria F Ribeiro, Ana M Sebastião, Cecília M P Rodrigues, Susana Solá
Although neurogenesis occurs in restricted regions of the adult mammalian brain, neural stem cells (NSCs) produce very few neurons during ageing or after injury. We have recently discovered that the endogenous bile acid tauroursodeoxycholic acid (TUDCA), a strong inhibitor of mitochondrial apoptosis and a neuroprotective in animal models of neurodegenerative disorders, also enhances NSC proliferation, self-renewal, and neuronal conversion by improving mitochondrial integrity and function of NSCs. In the present study, we explore the effect of TUDCA on regulation of NSC fate in neurogenic niches, the subventricular zone (SVZ) of the lateral ventricles and the hippocampal dentate gyrus (DG), using rat postnatal neurospheres and adult rats exposed to the bile acid...
May 22, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28534234/functional-outcome-of-patients-with-prolonged-hypoglycemic-encephalopathy
#15
Guillaume Barbara, Bruno Mégarbane, Laurent Argaud, Guillaume Louis, Nicolas Lerolle, Francis Schneider, Stéphane Gaudry, Nicolas Barbarot, Angéline Jamet, Hervé Outin, Sébastien Gibot, Pierre-Edouard Bollaert
BACKGROUND: Little is known about the causes, clinical course and long-term outcome of comatose patients with prolonged hypoglycemic encephalopathy. METHODS: In a multicenter retrospective study conducted in patients hospitalized from July 1, 2004, to July 1, 2014, we investigated functional long-term prognosis and identified prognosis factors of patients admitted in an intensive care unit (ICU) with prolonged neurological manifestations related to hypoglycemia...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28534084/the-emerging-link-between-o-glcnacylation-and-neurological-disorders
#16
REVIEW
Xiaofeng Ma, He Li, Yating He, Junwei Hao
O-linked β-N-acetylglucosaminylation (O-GlcNAcylation) is involved in the regulation of many cellular cascades and neurological diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), and stroke. In the brain, the expression of O-GlcNAcylation is notably heightened, as is that of O-linked N-acetylglucosaminyltransferase (OGT) and β-N-acetylglucosaminidase (OGA), the presence of which is prominent in many regions of neurological importance. Most importantly, O-GlcNAcylation is believed to contribute to the normal functioning of neurons; conversely, its dysregulation participates in the pathogenesis of neurological disorders...
May 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28530263/utricular-hypofunction-in-patients-with-type-2-diabetes-mellitus
#17
K Jáuregui-Renaud, C Aranda-Moreno, A Herrera-Rangel
The aim of this study was to assess the function of the utricle and horizontal semicircular canals in patients with type 2 diabetes mellitus receiving primary health care, with/without a history of falls. 101 patients with type 2 diabetes mellitus, 34 to 84 years old (26 with and 75 without a history of falls) and 51 healthy volunteers (40-83 years old) accepted to participate. They denied having a history of dizziness, vertigo, unsteadiness, hearing loss or neurological disorders. None of them were seeking care due to sensory or balance decline...
May 22, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28529667/motor-problems-in-children-with-neurofibromatosis-type-1
#18
André B Rietman, Rianne Oostenbrink, Sanne Bongers, Eddy Gaukema, Sandra van Abeelen, Jos G Hendriksen, Caspar W N Looman, Pieter F A de Nijs, Marie-Claire de Wit
BACKGROUND: Children with the neurogenetic disorder neurofibromatosis type 1 (NF1) often have problems with learning and behaviour. In both parent reports and neuropsychological assessment, motor problems are reported in approximately one third to one half of the children with NF1. Studies using broad motor performance test batteries with relatively large groups of children with NF1 are limited. The aim of this cross-sectional observational study was to describe the severity of motor problems in children with NF1 and to explore the predictive value of demographics, intelligence, and behavioural problems...
2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28527720/overactive-bladder-oab-a-symptom-in-search-of-a-disease-its-relationship-to-specific-lower-urinary-tract-symptoms-and-conditions
#19
Jason P Van Batavia, Andrew J Combs, Angela M Fast, Kenneth I Glassberg
BACKGROUND: The ICCS defines OAB by the subjective symptom of urgency; detrusor overactivity (DO) is only implied. While no other symptom is required, OAB can also be associated with urinary frequency, decreased functional bladder capacity, and incontinence. OBJECTIVE: We sought to determine how often these associated findings occur in OAB and what if any uroflow/EMG-defined conditions are found to be associated with it. METHODS: The charts of 548 children (231M, 318F; mean age 9...
March 10, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28527272/-does-corticosteroid-treatment-during-the-pre-and-postnatal-periods-affect-the-neurodevelopmental-outcome-of-premature-newborns
#20
Marita Lardón, José Uberos, Eduardo Narbona
INTRODUCTION: Glucocorticoids, widely used in the perinatal period, may be associated with adverse neurodevelopmental effects. OBJECTIVES: To analyze neurodevelopmental outcomes in a cohort of very low birth weight newborns treated with antenatal and/or postnatal corticosteroids. MATERIALS AND METHODS: This was a prospective cohort study in which we included all very low birth weight babies admitted to the neonatal intensive care unit of a tertiary hospital between 2008 and 2013...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
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