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https://www.readbyqxmd.com/read/27923267/sleep-and-processing-of-trauma-memories
#1
Ihori Kobayashi, Thomas A Mellman, Duaa Altaee, Mary Katherine Howell, Joseph Lavela
Sleep has been implicated in learning processes that appear to underlie recovery from posttraumatic stress disorder (PTSD). The importance of quality and timing of sleep following exposure-based therapies has been suggested. The present study evaluated relationships between sleep and adaptive emotional processing following written narrative exposure (WNE) to memories of traumatic events experienced by participants with clinically significant PTSD symptoms. Participants included 21 urban-residing nontreatment-seeking adults with full or subthreshold symptoms of PTSD who completed 4 sessions of 30-min WNE with the first session either in the evening or the morning...
December 2016: Journal of Traumatic Stress
https://www.readbyqxmd.com/read/27923202/structure-based-optimization-of-salt-bridge-network-across-the-complex-interface-of-ptpn4-pdz-domain-with-its-peptide-ligands-in-neuroglioma
#2
Xian Xiao, Qiang-Hua He, Li-Yan Yu, Song-Qing Wang, Yang Li, Hua Yang, Ai-Hua Zhang, Xiao-Hong Ma, Yu-Jie Peng, Bing Chen
The PTP non-receptor type 4 (PTPN4) is an important regulator protein in learning, spatial memory and cerebellar synaptic plasticity; targeting the PDZ domain of PTPN4 has become as attractive therapeutic strategy for human neuroglioma. Here, we systematically examined the complex crystal structures of PTPN4 PDZ domain with its known peptide ligands; a number of charged amino acid residues were identified in these ligands and in the peptide-binding pocket of PDZ domain, which can constitute a complicated salt-bridge network across the complex interface...
November 30, 2016: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/27923162/comparison-of-different-osmotic-therapies-in-a-mouse-model-of-traumatic-brain-injury
#3
Vinoth K M Khandelwal, Prabhakar Singh, Tatiana Ravingerova, Marslin Gregory, Hardik Gandhi, Manu Chaudhary
BACKGROUND: Inflammation in the affected region, increased intracranial pressure, consequent oedema and congestion contribute to the negative outcome of traumatic brain injury. Osmotic therapies are recommended for improvement in cognitive and motor functions. Aim of the present study was to evaluate the effect of osmotic therapies in a mice model of traumatic brain injury. METHODS: Experimental closed head injury was performed in adult Swiss albino mice by the weight-drop method...
October 11, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27923160/adolescent-and-adult-mice-display-differential-sensitivity-to-the-effects-of-bupropion-on-the-acquisition-of-a-water-maze-task
#4
Carmen Gómez, Carmen Carrasco, Rosa Redolat
BACKGROUND: Adolescence is characterized by major neurobiological changes, and the effects of some psychoactive drugs seem to differ between adolescents and adults. Bupropion, an antidepressant that is also used to treat nicotine addiction, induces behavioral actions in both adolescent and adult rodents. However, the effects of this drug on spatial ability have not been compared in animals at different stages of their development. The present study was conducted to assess the effects of bupropion on spatial learning and memory in adolescent and adult mice...
October 12, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27923091/association-between-learning-environment-interventions-and-medical-student-well-being-a-systematic-review
#5
Lauren T Wasson, Amberle Cusmano, Laura Meli, Irene Louh, Louise Falzon, Meghan Hampsey, Geoffrey Young, Jonathan Shaffer, Karina W Davidson
Importance: Concerns exist about the current quality of undergraduate medical education and its effect on students' well-being. Objective: To identify best practices for undergraduate medical education learning environment interventions that are associated with improved emotional well-being of students. Data Sources: Learning environment interventions were identified by searching the biomedical electronic databases Ovid MEDLINE, EMBASE, the Cochrane Library, and ERIC from database inception dates to October 2016...
December 6, 2016: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/27923064/sparse-regression-based-structure-learning-of-stochastic-reaction-networks-from-single-cell-snapshot-time-series
#6
Anna Klimovskaia, Stefan Ganscha, Manfred Claassen
Stochastic chemical reaction networks constitute a model class to quantitatively describe dynamics and cell-to-cell variability in biological systems. The topology of these networks typically is only partially characterized due to experimental limitations. Current approaches for refining network topology are based on the explicit enumeration of alternative topologies and are therefore restricted to small problem instances with almost complete knowledge. We propose the reactionet lasso, a computational procedure that derives a stepwise sparse regression approach on the basis of the Chemical Master Equation, enabling large-scale structure learning for reaction networks by implicitly accounting for billions of topology variants...
December 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27923054/fused-regression-for-multi-source-gene-regulatory-network-inference
#7
Kari Y Lam, Zachary M Westrick, Christian L Müller, Lionel Christiaen, Richard Bonneau
Understanding gene regulatory networks is critical to understanding cellular differentiation and response to external stimuli. Methods for global network inference have been developed and applied to a variety of species. Most approaches consider the problem of network inference independently in each species, despite evidence that gene regulation can be conserved even in distantly related species. Further, network inference is often confined to single data-types (single platforms) and single cell types. We introduce a method for multi-source network inference that allows simultaneous estimation of gene regulatory networks in multiple species or biological processes through the introduction of priors based on known gene relationships such as orthology incorporated using fused regression...
December 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27922974/training-and-validating-a-deep-convolutional-neural-network-for-computer-aided-detection-and-classification-of-abnormalities-on-frontal-chest-radiographs
#8
Mark Cicero, Alexander Bilbily, Errol Colak, Tim Dowdell, Bruce Gray, Kuhan Perampaladas, Joseph Barfett
OBJECTIVES: Convolutional neural networks (CNNs) are a subtype of artificial neural network that have shown strong performance in computer vision tasks including image classification. To date, there has been limited application of CNNs to chest radiographs, the most frequently performed medical imaging study. We hypothesize CNNs can learn to classify frontal chest radiographs according to common findings from a sufficiently large data set. MATERIALS AND METHODS: Our institution's research ethics board approved a single-center retrospective review of 35,038 adult posterior-anterior chest radiographs and final reports performed between 2005 and 2015 (56% men, average age of 56, patient type: 24% inpatient, 39% outpatient, 37% emergency department) with a waiver for informed consent...
December 5, 2016: Investigative Radiology
https://www.readbyqxmd.com/read/27922900/treat-me-like-everyone-else-the-experience-of-nurses-who-had-disabilities-while-in-school
#9
Leslie Neal-Boylan, Michelle Miller
The Americans With Disabilities Act requires that nursing programs not discriminate against students with disabilities. This article describes a qualitative study of RNs who had disabilities while in nursing school. As students, participants tried to hide their disabilities, experienced fear and anger from faculty, were frequently told they could never be nurses, wanted to be treated like everyone else, had to work harder than others to prove themselves worthy, and learned to advocate for themselves.
December 5, 2016: Nurse Educator
https://www.readbyqxmd.com/read/27922899/nursing-students-intrinsic-motivation-and-performance-on-the-licensure-examination
#10
Michele G Hackney
Unsuccessful attempts at licensure adversely affect graduates, prelicensure nursing education programs, health care agencies, and ultimately, patient safety. The purpose of this quantitative, correlational study was to investigate the relationship between nursing students' intrinsic motivation and performance on the licensure examination. Nursing students responded to 12 questions related to reasons for learning as indicators of motivation type. Results indicated no statistically significant correlations between variables...
December 5, 2016: Nurse Educator
https://www.readbyqxmd.com/read/27922898/clinical-hours-in-nurse-practitioner-programs-equals-clinical-competence-fact-or-misnomer
#11
Cathy R Fulton, Carol Clark, Stephanie Dickinson
An assumption in nursing education is that clinical experience equals competent practice. Knowing the extent of learning acquired during these experiences is important, and in graduate education, this is not always known. This study examined the nature of clinical hours that nurse practitioner students complete during practicum courses and explored activities of students when not engaged in direct patient care.
December 5, 2016: Nurse Educator
https://www.readbyqxmd.com/read/27922735/virtual-cell-imaging-a-review-on-simulation-methods-employed-in-image-cytometry
#12
REVIEW
Vladimír Ulman, David Svoboda, Matti Nykter, Michal Kozubek, Pekka Ruusuvuori
The simulations of cells and microscope images thereof have been used to facilitate the development, selection, and validation of image analysis algorithms employed in cytometry as well as for modeling and understanding cell structure and dynamics beyond what is visible in the eyepiece. The simulation approaches vary from simple parametric models of specific cell components-especially shapes of cells and cell nuclei-to learning-based synthesis and multi-stage simulation models for complex scenes that simultaneously visualize multiple object types and incorporate various properties of the imaged objects and laws of image formation...
December 6, 2016: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/27922727/measuring-learning-gain-comparing-anatomy-drawing-screencasts-and-paper-based-resources
#13
James D Pickering
The use of technology-enhanced learning (TEL) resources is now a common tool across a variety of healthcare programs. Despite this popular approach to curriculum delivery there remains a paucity in empirical evidence that quantifies the change in learning gain. The aim of the study was to measure the changes in learning gain observed with anatomy drawing screencasts in comparison to a traditional paper-based resource. Learning gain is a widely used term to describe the tangible changes in learning outcomes that have been achieved after a specific intervention...
December 6, 2016: Anatomical Sciences Education
https://www.readbyqxmd.com/read/27922715/refugee-care-left-behind
#14
Amy Sorrel
Until recently, Texas participated in the federally funded refugee resettlement program, which helps refugees relocate to the United States with services to help them find jobs, learn English, and get basic health and social services. Since Texas withdrew from the federal resettlement program in September, some physicians and resettlement organizations worry those services could be disrupted; others say the shift, while not ideal, could present opportunities to improve refugee care.
December 1, 2016: Texas Medicine
https://www.readbyqxmd.com/read/27922638/enhancing-dopaminergic-signaling-and-histone-acetylation-promotes-long-term-rescue-of-deficient-fear-extinction
#15
N Whittle, V Maurer, C Murphy, J Rainer, D Bindreither, M Hauschild, A Scharinger, M Oberhauser, T Keil, C Brehm, T Valovka, J Striessnig, N Singewald
Extinction-based exposure therapy is used to treat anxiety- and trauma-related disorders; however, there is the need to improve its limited efficacy in individuals with impaired fear extinction learning and to promote greater protection against return-of-fear phenomena. Here, using 129S1/SvImJ mice, which display impaired fear extinction acquisition and extinction consolidation, we revealed that persistent and context-independent rescue of deficient fear extinction in these mice was associated with enhanced expression of dopamine-related genes, such as dopamine D1 (Drd1a) and -D2 (Drd2) receptor genes in the medial prefrontal cortex (mPFC) and amygdala, but not hippocampus...
December 6, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27922596/pathological-overeating-emerging-evidence-for-a-compulsivity-construct
#16
REVIEW
Catherine F Moore, Valentina Sabino, George F Koob, Pietro Cottone
Compulsive eating behavior is a transdiagnostic construct that is characteristic of medical and psychiatric conditions such as forms of obesity and eating disorders. While feeding research is moving towards a better understanding of the proposed addictive properties of food, the components and the mechanisms contributing to compulsive eating are not yet clearly defined or understood. Current understanding highlights three elements of compulsive behavior as it applies to pathological overeating: 1) habitual overeating; 2) overeating to relieve a negative emotional state; and 3) overeating despite aversive consequences...
December 6, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27922595/memories-of-opiate-withdrawal-emotional-states-correlate-with-specific-gamma-oscillations-in-the-nucleus-accumbens
#17
Cyril Dejean, Mathieu Sitko, Paul Girardeau, Amine Bennabi, Stéphanie Caillé, Martine Cador, Thomas Boraud, Catherine Le Moine
Affective memories associated with the negative emotional state experienced during opiate withdrawal are central in maintaining drug-taking, seeking and relapse. Nucleus accumbens (NAC) is a key structure both for acute withdrawal and withdrawal memories reactivation, however NAC neuron coding properties underpinning the expression of these memories remain largely unknown. Here we aimed at deciphering the role of NAC neurons in the encoding and retrieval of opiate withdrawal memory. Chronic single neuron and local field potentials recordings were performed in morphine-dependent rats and placebo-controls...
December 6, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27922592/distributed-solar-photovoltaic-array-location-and-extent-dataset-for-remote-sensing-object-identification
#18
Kyle Bradbury, Raghav Saboo, Timothy L Johnson, Jordan M Malof, Arjun Devarajan, Wuming Zhang, Leslie M Collins, Richard G Newell
Earth-observing remote sensing data, including aerial photography and satellite imagery, offer a snapshot of the world from which we can learn about the state of natural resources and the built environment. The components of energy systems that are visible from above can be automatically assessed with these remote sensing data when processed with machine learning methods. Here, we focus on the information gap in distributed solar photovoltaic (PV) arrays, of which there is limited public data on solar PV deployments at small geographic scales...
December 6, 2016: Scientific Data
https://www.readbyqxmd.com/read/27922580/comparative-analysis-of-peri-operative-outcomes-using-nationally-derived-hospital-discharge-data-relative-to-a-prospective-multi-center-surgical-database-of-adult-spinal-deformity-surgery
#19
Gregory W Poorman, Peter G Passias, Aaron J Buckland, Cyrus M Jalai, Michael Kelly, Daniel M Sciubba, Brian J Neuman, D Kojo Hamilton, Amit Jain, Bassel Diebo, Virginie Lafage, Shay Bess, Eric O Klineberg
STUDY DESIGN: Retrospective analysis of three prospectively collected databases. OBJECTIVE: compare peri-operative outcomes in Adult Spinal Deformity (ASD) surgeries in a surgeon-run (SR-ASD) and two national databases: the Nationwide Inpatient Sample (NIS) and the National Surgical Quality Improvement Program (NSQIP). SUMMARY OF BACKGROUND DATA: has been learned on the treatment of ASD in the last decade with prospective multicenter collaborative research focusing on this specific condition...
December 2, 2016: Spine
https://www.readbyqxmd.com/read/27922556/using-the-nursing-process-to-identify-and-treat-angioedema-a-case-study
#20
Tracey A Hotta
The nursing process is the essential core of practice for registered nurses, independent of what field of nursing you have chosen. You learn it in nursing school and use it until you are no longer practicing. It is designed to train nurses how to develop a nursing care plan through critical thinking. Over the years it becomes a routine way of problem solving, but it is sometimes good to go back to the basics to remember the ground work. The focus of this article is to review the steps of the nursing process when faced with a complication, using our critical thinking skills...
October 2016: Plastic Surgical Nursing
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