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https://www.readbyqxmd.com/read/28738061/magnetic-resonance-imaging-and-tensor-based-morphometry-in-the-mptp-non-human-primate-model-of-parkinson-s-disease
#1
Michel Modo, William R Crum, Madeline Gerwig, Anthony C Vernon, Priya Patel, Michael J Jackson, Sarah Rose, Peter Jenner, Mahmoud M Iravani
Parkinson's disease (PD) is the second most common neurodegenerative disorder producing a variety of motor and cognitive deficits with the causes remaining largely unknown. The gradual loss of the nigrostriatal pathway is currently considered the pivotal pathological event. To better understand the progression of PD and improve treatment management, defining the disease on a structural basis and expanding brain analysis to extra-nigral structures is indispensable. The anatomical complexity and the presence of neuromelanin, make the use of non-human primates an essential element in developing putative imaging biomarkers of PD...
2017: PloS One
https://www.readbyqxmd.com/read/28737868/languaje-what-makes-us-humans
#2
Horacio Lejarraga
Pediatrician carry out the surveillance of language in preschool children as one of the components of child development (language, fine and gross motor skills, etc.). However, language is more than that. The process of transformation of the magic meaning on the word present in the initial stages of human evolution (Myth period) into a new, symbolic meaning as representative of the object (Logos period) took around 40,000 years. With the mastering of language, man was capable of thinking; from then onwards, these two functions, thought and language, became inextricably linked, the evolved hand in hand...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28737572/european-society-for-paediatric-gastroenterology-hepatology-and-nutrition-guidelines-for-the-evaluation-and-treatment-of-gastrointestinal-and-nutritional-complications-in-children-with-neurological-impairment
#3
Claudio Romano, Myriam van Wynckel, Jessie Hulst, Ilse Broekaert, Jiri Bronsky, Luigi Dall'Oglio, Nataša F Mis, Iva Hojsak, Rok Orel, Alexandra Papadopoulou, Michela Schaeppi, Nikhil Thapar, Michael Wilschanski, Peter Sullivan, Frédéric Gottrand
OBJECTIVES: Feeding difficulties are frequent in children with neurological impairments and can be associated with undernutrition, growth failure, micronutrients deficiencies, osteopenia, and nutritional comorbidities. Gastrointestinal problems including gastroesophageal reflux disease, constipation, and dysphagia are also frequent in this population and affect quality of life and nutritional status. There is currently a lack of a systematic approach to the care of these patients. With this report, European Society of Gastroenterology, Hepatology and Nutrition aims to develop uniform guidelines for the management of the gastroenterological and nutritional problems in children with neurological impairment...
August 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28736796/longitudinal-research-on-aging-drivers-longroad-study-design-and-methods
#4
Guohua Li, David W Eby, Robert Santos, Thelma J Mielenz, Lisa J Molnar, David Strogatz, Marian E Betz, Carolyn DiGuiseppi, Lindsay H Ryan, Vanya Jones, Samantha I Pitts, Linda L Hill, Charles J DiMaggio, David LeBlanc, Howard F Andrews
BACKGROUND: As an important indicator of mobility, driving confers a host of social and health benefits to older adults. Despite the importance of safe mobility as the population ages, longitudinal data are lacking about the natural history and determinants of driving safety in older adults. METHODS: The Longitudinal Research on Aging Drivers (LongROAD) project is a multisite prospective cohort study designed to generate empirical data for understanding the role of medical, behavioral, environmental and technological factors in driving safety during the process of aging...
December 2017: Injury Epidemiology
https://www.readbyqxmd.com/read/28736514/design-and-validation-of-exoskeleton-actuated-by-soft-modules-toward-neurorehabilitation-vision-based-control-for-precise-reaching-motion-of-upper-limb
#5
Victoria W Oguntosin, Yoshiki Mori, Hyejong Kim, Slawomir J Nasuto, Sadao Kawamura, Yoshikatsu Hayashi
We demonstrated the design, production, and functional properties of the Exoskeleton Actuated by the Soft Modules (EAsoftM). Integrating the 3D printed exoskeleton with passive joints to compensate gravity and with active joints to rotate the shoulder and elbow joints resulted in ultra-light system that could assist planar reaching motion by using the vision-based control law. The EAsoftM can support the reaching motion with compliance realized by the soft materials and pneumatic actuation. In addition, the vision-based control law has been proposed for the precise control over the target reaching motion within the millimeter scale...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28736508/3-dof-force-sensing-motorized-micro-forceps-for-robot-assisted-vitreoretinal-surgery
#6
Berk Gonenc, Alireza Chamani, James Handa, Peter Gehlbach, Russell H Taylor, Iulian Iordachita
In vitreoretinal surgery, membrane peeling is a prototypical task where a layer of fibrous tissue is delaminated off the retina with a micro-forceps by applying very fine forces that are mostly imperceptible to the surgeon. Previously we developed sensitized ophthalmic surgery tools based on fiber Bragg grating (FBG) strain sensors, which were shown to precisely detect forces at the instrument's tip in two degrees of freedom perpendicular to the tool axis. This paper presents a new design that employs an additional sensor to capture also the tensile force along the tool axis...
June 1, 2017: IEEE Sensors Journal
https://www.readbyqxmd.com/read/28736242/suppression-of-cortical-trpm7-protein-attenuates-oxidative-damage-after-traumatic-brain-injury-via-akt-endothelial-nitric-oxide-synthase-pathway
#7
Hong-Liang Xu, Meng-Dong Liu, Xiao-Hong Yuan, Chun-Xi Liu
Neuronal death after traumatic brain injury (TBI) is a complex process resulting from a combination of factors, many of which are still unknown. Transient receptor potential melastatin 7 (TRPM7) is a transient receptor potential channel that has been demonstrated to mediate ischemic and traumatic neuronal injury in vitro. In the present study, TRPM7 was suppressed in the rat cerebral cortex by intracortical injections of viral vectors bearing shRNA specific for TRPM7 to investigate its potential role in an in vivo TBI model...
July 20, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28735982/a-standardized-donor-designation-ratio-to-assess-the-performance-of-driver-s-license-agencies
#8
N K R Sehgal, C Sullivan, M Figueroa, J A Pencak, D Einstadter, J D Thornton
Evaluating Department of Motor Vehicles (DMV) locations based on the percent of patrons who register as donors does not account for individual characteristics that may influence willingness to donate. We reviewed the driver's licenses of 2997 randomly selected patients at an urban medical system to obtain donor designation, age, gender, and DMV location and linked patient addresses with census tract data on race, ethnicity, income, and education. We then developed a Standardized Donor Designation Ratio (SDDR) (ie, the observed number of donors at each DMV divided by the expected number of donors based on patient demographic characteristics)...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28735975/molecular-characterization-and-expression-profiles-of-myosin-essential-light-chain-gene-in-the-pacific-oyster-crassostrea-gigas
#9
Hong Yu, Huijuan Li, Qi Li
In molluscs, muscle contraction is triggered by a direct binding of Ca(2+) to myosin. The myosin essential light chain (MELC) provides the Ca(2+) binding site and is of importance for motor function and regulation. In this study, the complete cDNA sequence of MELC gene of the Pacific oyster, Crassostrea gigas, was obtained, and the expression profiles were performed in different tissues and different embryo-larval development stages. The results showed that the full length of C. gigas MELC (CgMELC) cDNA was 659 bp, containing a 5'-untranslated region of 73 bp, a 3'-untranslated region of 112 bp...
July 20, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28735381/characterization-of-the-sensorimotor-rhythm-in-4-month-old-infants-born-at-term-and-premature
#10
Milene Roca-Stappung, Minerva Moguel-González, Thalía Fernández, Thalía Harmony, Omar Mendoza-Montoya, José Luis Marroquín, Salvador Ruiz-Correa, Lourdes Díaz-Comas, Gloria Otero-Ojeda
The sensorimotor rhythm (SMR) is an electroencephalographic rhythm associated with motor and cognitive development observed in the central brain regions during wakefulness in the absence of movement, and it reacts contralaterally to generalized and hemibody movements. The purpose of this work was to characterize the SMR of 4-month-old infants, born either healthy at term or prematurely with periventricular leukomalacia (PVL). Two groups of infants were formed: healthy and premature with PVL. Their electroencephalograms (EEGs) were recorded in four conditions: rest, free movement, right-hand grasping and left-hand grasping, in order to explore general reactivity to free movement and contralateral reactivity in hand-grasping conditions...
July 22, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28735212/externally-controlled-involuntary-cognitions-and-their-relations-with-other-representations-in-consciousness
#11
Donish Cushing, Adam Gazzaley, Ezequiel Morsella
Percepts and action-related urges often enter consciousness insuppressibly. The Reflexive Imagery Task (RIT) was developed to investigate how high-level cognitions (e.g., subvocalizations), too, can enter consciousness in this manner. Limitations of the paradigm include (a) that no data have confirmed subjects' introspections about the involuntary subvocalizations, and (b) that, in everyday life, adaptive responses to involuntary cognitions often depend on the nature of the other contents in consciousness. To address a and b, we developed an RIT in which subjects were presented with visual objects and instructed to not think of the object names...
July 20, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28735158/the-criterion-validity-and-intra-rater-reliability-of-the-japanese-version-of-the-functional-mobility-scale-in-children-with-cerebral-palsy
#12
Nobuaki Himuro, Hisato Nishibu, Hirokazu Abe, Mitsuru Mori
OBJECTIVE: The purpose of this study was to develop a Japanese version of the Functional Mobility Scale (FMS), and examine the criterion validity and intra-rater reliability of the FMS in Japan. METHODS: The translation of the FMS was performed according to international standards for the translation of measurements. For criterion validity, 111 children with cerebral palsy (mean age; 12year 1mo±3year 7mo; range 5-18) were rated the Japanese version of the FMS and Gross Motor Function Classification System (GMFCS)...
July 20, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28735133/neurological-outcome-after-resection-of-parietal-lobe-including-primary-somatosensory-cortex-implications-of-additional-resection-of-posterior-parietal-cortex
#13
Young-Hoon Kim, June Sic Kim, Sang Kun Lee, Chun Kee Chung
OBJECTIVE: Postoperative neurological outcomes after primary somatosensory cortex (S1) resection have not been well-documented. This study was designed to evaluate the neurological deterioration that follows resection of the S1 areas and to assess the risk factors associated with these morbidities. METHODS: We reviewed 48 consecutive patients who suffered from medically intractable epilepsy and underwent resection of the S1 and/or the adjacent cortex. The 48 patients were categorized into 4 groups according to the resected area as seen on postoperative magnetic resonance images: Group 1 (resection of S1 only; n=4), 2 (the posterior parietal cortex (PPC) only; n=24), 3 (S1 and PPC; n=10), and 4 (S1 and precentral gyrus; n=10)...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28734834/dynein-binds-and-stimulates-axonal-motility-of-the-endosome-adaptor-and-neep21-family-member-calcyon
#14
Liang Shi, Nagendran Muthusamy, Deanna Smith, Clare Bergson
The neuron-enriched, endosomal protein Calcyon (Caly) regulates endocytosis and vesicle sorting, and is important for synaptic plasticity and brain development. In the current investigation of Caly interacting proteins in brain, the microtubule retrograde motor subunit, cytoplasmic dynein 1 heavy chain (DYNC1H), and microtubule structural proteins, α and β tubulin, were identified as Caly associated proteins by MALDI-ToF/ToF. Direct interaction of the Caly-C terminus with dynein and tubulin was further confirmed in in vitro studies...
July 19, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28734692/respiratory-arrest-at-the-onset-of-idiopathic-childhood-occipital-epilepsy-of-gastaut
#15
Keiko Funata, Tatsuhiko Shike, Toshiki Takenouchi, Yukio Yamashita, Takao Takahashi
Occipital lobe epilepsy of childhood includes two entities: Panayiotopoulos syndrome in pre-school children, and idiopathic childhood occipital epilepsy of Gastaut (ICOEG) in school-age children. The typical initial manifestation of the former is vomiting, and that of the latter is visual hallucinations. Ictal cardiopulmonary arrest at initial presentation has been reported for Panayiotopoulos syndrome, but not for ICOEG. We document a 7-year-old previously healthy girl who experienced an acute elemental visual hallucination of seeing insects, followed by a new-onset generalized seizure...
July 19, 2017: Brain & Development
https://www.readbyqxmd.com/read/28734458/rett-like-severe-encephalopathy-caused-by-a-de%C3%A2-novo-grin2b-mutation-is-attenuated-by-d-serine-dietary-supplement
#16
David Soto, Mireia Olivella, Cristina Grau, Judith Armstrong, Clara Alcon, Xavier Gasull, Macarena Gómez de Salazar, Esther Gratacòs-Batlle, David Ramos-Vicente, Víctor Fernández-Dueñas, Francisco Ciruela, Àlex Bayés, Carlos Sindreu, Anna López-Sala, Àngels García-Cazorla, Xavier Altafaj
BACKGROUND: N-Methyl-D-aspartate receptors (NMDARs) play pivotal roles in synaptic development, plasticity, neural survival, and cognition. Despite recent reports describing the genetic association between de novo mutations of NMDAR subunits and severe psychiatric diseases, little is known about their pathogenic mechanisms and potential therapeutic interventions. Here we report a case study of a 4-year-old Rett-like patient with severe encephalopathy carrying a missense de novo mutation in GRIN2B(p...
June 16, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28734263/study-of-the-influencing-factors-of-the-blood-levels-of-toxic-elements-in-africans-from-16-countries
#17
Luis Alberto Henríquez-Hernández, Octavio P Luzardo, Luis D Boada, Cristina Carranza, José Luis Pérez Arellano, Ana González-Antuña, Maira Almeida-González, Carlos Barry-Rodríguez, Manuel Zumbado, María Camacho
Africa's economy is growing faster than any other continent and it has been estimated that the middle class in Africa now exceeds 350 million people. This has meant a parallel increase in the importation of consumer goods and in the implementation of communication and information technologies (ICT), but also in the generation of large quantities of e-waste. However, inadequate infrastructure development remains a major constraint to the continent's economic growth and these highly toxic residues are not always adequately managed...
July 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28733851/autism-and-equine-assisted-interventions-a-systematic-mapping-review
#18
B Caitlin McDaniel Peters, Wendy Wood
This systematic mapping review mapped current knowledge of equine-assisted interventions for people with autism to help guide future practice and research. Thirty-three studies including children and adolescents with autism, 3 of which confirmed diagnoses, were reviewed. Five types of equine-assisted activities were identified across 25 studies, with reported improvements in behavior, social interaction, and communication. Four types of equine-assisted therapies were identified across 8 studies, with reported improvements in motor control and self-care...
July 21, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28733811/pharmacological-evidence-that-5-ht2c-receptor-blockade-selectively-improves-decision-making-when-rewards-are-paired-with-audiovisual-cues-in-a-rat-gambling-task
#19
Wendy K Adams, Chris Barkus, Jacqueline-Marie N Ferland, Trevor Sharp, Catharine A Winstanley
RATIONALE: Adding reward-concurrent cues to a rat gambling task (rGT) increases risky choice. This cued version of the task may reflect an "addiction-like" cognitive process, more similar to human gambling than the uncued task. Serotonergic drugs that target 5-HT2 receptors alter mechanisms linked to impulse control. However, relatively little is known regarding the impact of such agents on either risky decision making, or the ability of conditioned stimuli to bias the choice process, despite potential relevance to addiction development and treatment...
July 21, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28732686/health-conditions-impact-on-function-health-related-quality-of-life-and-life-satisfaction-following-traumatic-spinal-cord-injury-a-prospective-observational-registry-cohort-study
#20
Carly S Rivers, Nader Fallah, Vanessa K Noonan, David Gt Whitehurst, Carolyn Schwartz, Joel Finkelstein, B Catharine Craven, Karen Ethans, Colleen O'Connell, Catherine Truchon, Chester Ho, A Gary Linassi, Christine Short, Eve Tsai, Brian Drew, Henry Ahn, Marcel F Dvorak, Jérôme Paquet, Michael G Fehlings, Luc Noreau
OBJECTIVE: To analyze relationships among injury, demographic and environmental factors on function, HRQoL and life satisfaction in individuals with traumatic SCI. DESIGN: prospective observational registry cohort study SETTING: 31 acute and rehabilitation SCI centres PARTICIPANTS: Participants (N=340) from the Rick Hansen Spinal Cord Injury Registry (RHSCIR) who were prospectively recruited from 2004-2014 were included. The model cohort included 340 participants: 79...
July 18, 2017: Archives of Physical Medicine and Rehabilitation
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