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https://www.readbyqxmd.com/read/29350663/effectiveness-of-a-tailored-medical-support-to-overcome-the-barriers-to-education-treatment-and-good-metabolic-control-in-children-with-type-1-diabetes-from-ethnic-minorities
#1
Brunella Iovane, Antonina Marta Cangelosi, Ilaria Bonaccini, Carla Mastrorilli, Dora Di Mauro, Valentina Fainardi, Giovanni Chiari, Marilena Maltese, Carlo Caffarelli, Maurizio Vanelli
AIM: To analyze the effectiveness of a tailored medical support to help children from ethnic minorities to achieve the same good metabolic control of autochthonous peers with type-1 diabetes (T1D). METHODS: Children <10 years of age belonging to ethnic minority (EM) families (Group 1) were compared with autochthonous peers (Group 2) who received the diagnosis of T1D in 2014-2016. The Protocol for minorities included other than the standard protocol: booklets translated in ethnic minority languages; weekly visits at home or at school; family-guides; clinic visits supported by professional interpreters...
January 16, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29349680/ultrasound-evaluation-of-the-airway-in-the-ed-a-feasibility-study
#2
Elizabeth A Hall, Ibrahim Showaihi, Frances S Shofer, Nova L Panebianco, Anthony J Dean
BACKGROUND: Recognition of the difficult airway is a critical element of emergency practice. Mallampati score and body mass index (BMI) are not always predictive and they may be unavailable in critically ill patients. Ultrasonography provides high-resolution images that are rapidly obtainable, mobile, and non-invasive. Studies have shown correlation of ultrasound measurements with difficult laryngoscopy; however, none have been performed in the Emergency Department (ED) using a consistent scanning protocol...
January 18, 2018: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/29348366/structures-of-human-prc2-with-its-cofactors-aebp2-and-jarid2
#3
Vignesh Kasinath, Marco Faini, Simon Poepsel, Dvir Reif, Xinyu Ashlee Feng, Goran Stjepanovic, Ruedi Aebersold, Eva Nogales
Transcriptionally repressive histone H3K27 methylation by PRC2 (Polycomb repressive complex 2) is essential for cellular differentiation and development. Here we report cryo-EM structures of human PRC2 in two distinct, active states, while in complex with its cofactors JARID2 and AEBP2. Both cofactors mimic the binding of histone H3 tails. JARID2, methylated by PRC2, mimics a methylated H3 tail to stimulate PRC2 activity, while AEBP2 interacts with the RBAP48 subunit mimicking an unmodified H3 tail. SUZ12 interacts with all other subunits within the assembly and thus contributes to the stability of the complex...
January 18, 2018: Science
https://www.readbyqxmd.com/read/29347402/stable-lattice-boltzmann-model-for-maxwell-equations-in-media
#4
A Hauser, J L Verhey
The present work shows a method for stable simulations via the lattice Boltzmann (LB) model for electromagnetic waves (EM) transiting homogeneous media. LB models for such media were already presented in the literature, but they suffer from numerical instability when the media transitions are sharp. We use one of these models in the limit of pure vacuum derived from Liu and Yan [Appl. Math. MODEL: 38, 1710 (2014)AMMODL0307-904X10.1016/j.apm.2013.09.009] and apply an extension that treats the effects of polarization and magnetization separately...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347355/inverse-ising-problem-in-continuous-time-a-latent-variable-approach
#5
Christian Donner, Manfred Opper
We consider the inverse Ising problem: the inference of network couplings from observed spin trajectories for a model with continuous time Glauber dynamics. By introducing two sets of auxiliary latent random variables we render the likelihood into a form which allows for simple iterative inference algorithms with analytical updates. The variables are (1) Poisson variables to linearize an exponential term which is typical for point process likelihoods and (2) Pólya-Gamma variables, which make the likelihood quadratic in the coupling parameters...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346222/-to-err-is-human-but-disclosure-must-be-taught-a-simulation-based-assessment-study
#6
Ashley C Crimmins, Ambrose H Wong, James W Bonz, Alina Tsyrulnik, Karen Jubanyik, James D Dziura, Kelly L Dodge, Leigh V Evans
INTRODUCTION: Although error disclosure is critical in promoting safety and patient-centered care, physicians are inconsistently trained in its practice, and few objective methods to assess competence exist. We used an immersive simulation scenario to determine whether providers with varying levels of clinical experience adhere to the disclosure safe practice guidelines when exposed to a serious adverse event simulation scenario. METHODS: This was a prospective cohort study with medical students, junior emergency medicine (EM) residents (PGY 1-2), senior EM residents (PGY 3-4), and attending EM physicians participating in a simulated case in which a scripted medication overdose resulted in an adverse event...
January 17, 2018: Simulation in Healthcare: Journal of the Society for Simulation in Healthcare
https://www.readbyqxmd.com/read/29345600/an-open-source-storage-solution-for-cryo-electron-microscopy-samples
#7
Eveline Ultee, Fred Schenkel, Wen Yang, Susanne Brenzinger, Jamie S Depelteau, Ariane Briegel
Cryo-electron microscopy (cryo-EM) enables the study of biological structures in situ in great detail and to solve protein structures at Ångstrom level resolution. Due to recent advances in instrumentation and data processing, the field of cryo-EM is a rapidly growing. Access to facilities and national centers that house the state-of-the-art microscopes is limited due to the ever-rising demand, resulting in long wait times between sample preparation and data acquisition. To improve sample storage, we have developed a cryo-storage system with an efficient, high storage capacity that enables sample storage in a highly organized manner...
January 18, 2018: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/29344776/dawning-of-a-new-era-in-trp-channel-structural-biology-by-cryo-electron-microscopy
#8
REVIEW
M Gregor Madej, Christine M Ziegler
Cryo-electron microscopy (cryo-EM) permits the determination of atomic protein structures by averaging large numbers of individual projection images recorded at cryogenic temperatures-a method termed single-particle analysis. The cryo-preservation traps proteins within a thin glass-like ice layer, making literally a freeze image of proteins in solution. Projections of randomly adopted orientations are merged to reconstruct a 3D density map. While atomic resolution for highly symmetric viruses was achieved already in 2009, the development of new sensitive and fast electron detectors has enabled cryo-EM for smaller and asymmetrical proteins including fragile membrane proteins...
January 17, 2018: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/29343545/tolloid-cleavage-activates-latent-gdf8-by-priming-the-pro-complex-for-dissociation
#9
Viet Q Le, Roxana E Iacob, Yuan Tian, William McConaughy, Justin Jackson, Yang Su, Bo Zhao, John R Engen, Michelle Pirruccello-Straub, Timothy A Springer
Growth differentiation factor 8 (GDF8)/myostatin is a latent TGF-β family member that potently inhibits skeletal muscle growth. Here, we compared the conformation and dynamics of precursor, latent, and Tolloid-cleaved GDF8 pro-complexes to understand structural mechanisms underlying latency and activation of GDF8. Negative stain electron microscopy (EM) of precursor and latent pro-complexes reveals a V-shaped conformation that is unaltered by furin cleavage and sharply contrasts with the ring-like, cross-armed conformation of latent TGF-β1...
January 17, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29342202/cells-containing-aragonite-crystals-mediate-responses-to-gravity-in-trichoplax-adhaerens-placozoa-an-animal-lacking-neurons-and-synapses
#10
Tatiana D Mayorova, Carolyn L Smith, Katherine Hammar, Christine A Winters, Natalia B Pivovarova, Maria A Aronova, Richard D Leapman, Thomas S Reese
Trichoplax adhaerens has only six cell types. The function as well as the structure of crystal cells, the least numerous cell type, presented an enigma. Crystal cells are arrayed around the perimeter of the animal and each contains a birefringent crystal. Crystal cells resemble lithocytes in other animals so we looked for evidence they are gravity sensors. Confocal microscopy showed that their cup-shaped nuclei are oriented toward the edge of the animal, and that the crystal shifts downward under the influence of gravity...
2018: PloS One
https://www.readbyqxmd.com/read/29340940/characterizing-potentially-preventable-admissions-a-mixed-methods-study-of-rates-associated-factors-outcomes-and-physician-decision-making
#11
Lisa M Daniels, Atsushi Sorita, Deanne T Kashiwagi, Masashi Okubo, Evan Small, Eric C Polley, Adam P Sawatsky
BACKGROUND: Potentially preventable admissions are a target for healthcare cost containment. OBJECTIVE: To identify rates of, characterize associations with, and explore physician decision-making around potentially preventable admissions. DESIGN: A comparative cohort study was used to determine rates of potentially preventable admissions and to identify associated factors and patient outcomes. A qualitative case study was used to explore physicians' clinical decision-making...
January 16, 2018: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/29339972/evaluation-of-green-tea-extract-as-a-safe-personal-hygiene-against-viral-infections
#12
Yun Ha Lee, Yo Han Jang, Young-Seok Kim, Jinku Kim, Baik Lin Seong
Background: Viral infections often pose tremendous public health concerns as well as economic burdens. Despite the availability of vaccines or antiviral drugs, personal hygiene is considered as effective means as the first-hand measure against viral infections. The green tea catechins, in particular, epigallocatechin-3-gallate (EGCG), are known to exert potent antiviral activity. In this study, we evaluated the green tea extract as a safe personal hygiene against viral infections. Results: Using the influenza virus A/Puerto Rico/8/34 (H1N1) as a model, we examined the duration of the viral inactivating activity of green tea extract (GTE) under prolonged storage at various temperature conditions...
2018: Journal of Biological Engineering
https://www.readbyqxmd.com/read/29339159/analysis-of-the-interactions-between-gmf-and-arp2-3-complex-in-two-binding-sites-by-molecular-dynamics-simulation
#13
A Popinako, M Antonov, D Dibrova, A Chemeris, O S Sokolova
The Arp2/3 complex plays a key role in nucleating actin filaments branching. The glia maturation factor (GMF) competes with activators for interacting with the Arp2/3 complex and initiates the debranching of actin filaments. In this study, we performed a comparative analysis of interactions between GMF and the Arp2/3 complex and identified new amino acid residues involved in GMF binding to the Arp2/3 complex at two separate sites, revealed by X-ray and single particle EM techniques. Using molecular dynamics simulations we demonstrated the quantitative and qualitative changes in hydrogen bonds upon binding with GMF...
January 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29339023/calculated-shape-dependence-of-electromagnetic-field-in-tip-enhanced-raman-scattering-by-using-a-monopole-antenna-model
#14
Yasutaka Kitahama, Tamitake Itoh, Toshiaki Suzuki
To evaluate the shape of an Ag tip with regard to tip-enhanced Raman scattering (TERS) signal, the enhanced electromagnetic (EM) field and scattering spectrum, arising from surface plasmon resonance at the apex of the tip, were calculated using a finite-difference time domain (FDTD) method. In the calculated forward scattering spectra from the smooth Ag tip, the band appeared within the visible region, similar to the experimental results and calculation for a corrugated Ag cone. In the FDTD calculation of TERS, the Ag tip acting as a monopole antenna was adopted by insertion of a perfect electric conductor between the root of the tip and a top boundary surface of the calculation space...
January 5, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29338319/clinical-evaluation-of-circulating-mir-548a-3p-and-20a-expression-in-malignant-pleural-mesothelioma-patients
#15
Marwa Matboli, Ayman E Shafei, Ahmed Em Azazy, Maged Reda, Nashwa El-Khazragy, Ahmed Aly Nagy, Mahmoud A Ali, Mohamed Sobhi, Omar Abdel-Rahman
AIM: miRNAs may act as promising diagnostic and prognostic biomarkers of mesothelioma. This study integrates serum  miR-548a-3p and miR-20a expression based on in silico data analysis followed by clinical validation in malignant mesothelioma patients (malignant pleural mesothelioma [MPM]). PATIENTS & METHODS: Serum miR-548a-3p and  miR-20a level was assessed in the serum of patients with MPM, chronic asbestos exposure and healthy volunteers by quantitative real-time PCR...
January 17, 2018: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29338105/multiple-sclerosis-long-term-outcomes-in-ethnic-minorities-with-ms-analysis-of-a-uk-population-based-registry
#16
Meshari O Alsaeed, Katharine E Harding, Owain H Williams, Mark D Willis, James Hrastelj, Emma C Tallantyre, Fady G Joseph, Mark Wardle, Trevor P Pickersgill, Neil P Robertson
BACKGROUND: Multiple sclerosis (MS) is most frequent in Caucasian populations. However, studies of MS in other ethnic groups may offer unique insights into genetic and environmental influences on disease, and data on long-term outcomes in these patients is limited. We have investigated clinical features and time to disability milestones in ethnic minority (EM) patients with MS in a UK population and made comparisons to a Caucasian cohort from the same region. METHODS: 1949 MS patients (1866 Caucasian, 83 EM) were identified from a regional disease registry...
January 16, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29337113/volta-phase-plate-data-collection-facilitates-image-processing-and-cryo-em-structure-determination
#17
Ottilie von Loeffelholz, Gabor Papai, Radostin Danev, Alexander G Myasnikov, S Kundhavai Natchiar, Isabelle Hazemann, Jean-François Ménétret, Bruno P Klaholz
A current bottleneck in structure determination of macromolecular complexes by cryo electron microscopy (cryo-EM) is the large amount of data needed to obtain high-resolution 3D reconstructions, including through sorting into different conformations and compositions with advanced image processing. Additionally, it may be difficult to visualize small ligands that bind in sub-stoichiometric levels. Volta phase plates (VPP) introduce a phase shift in the contrast transfer and drastically increase the contrast of the recorded low-dose cryo-EM images while preserving high frequency information...
January 11, 2018: Journal of Structural Biology
https://www.readbyqxmd.com/read/29336351/microwave-absorption-properties-of-reduced-graphene-oxide-strontium-hexaferrite-poly-methyl-methacrylate-composites
#18
Snaghmitra Acharya, Jayashree Ray, T Umasankar Patro, Prashant Alegaonkar, Suwarna Datar
To design microwave absorber material for eradication of electromagnetic (EM) pollution the key factors are; absorption of incident EM wave and good impedance matching. By keeping these things in mind, flexible microwave absorber composite films are fabricated by simple gel casting techniques by considering reduced graphene oxide (RGO) and strontium ferrite (SF) in poly (methyl methacrylate) (PMMA) matrix. SF nanoparticles are synthesized by well known sol-gel method. Subsequently, reduced graphene oxide (RGO) and SF nanocomposite (RGOSF) are prepared through chemical reduction method by using hydrazine...
January 16, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29336347/electromigration-and-morphological-changes-in-ag-nanostructures
#19
Atasi Chatterjee, T Bai, Frederik Edler, Christoph Tegenkamp, Kirsten Weide-Zaage, Herbert Pfnür
Electromigration (EM) as a structuring tool was investigated in Ag nanowires (width 300 nm, thickness 25 nm) and partly in notched and bow-tie Ag structures on a Si(100) substrate in ultra-high vacuum (UHV) using a 4-tip scanning tunneling microscope (STM) in combination with a scanning electron microscope (SEM). From simulations of Ag nanowires we got estimates of temperature profiles, current density profiles, EM and thermal migration (TM) mass flux distributions within the nanowire induced by critical current densities of $10^{8}$ A/cm$^2$...
January 16, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29335773/effects-of-combining-ergonomic-interventions-and-motor-control-exercises-on-muscle-activity-and-kinematics-in-people-with-work-related-neck-shoulder-pain
#20
Sharon M H Tsang, Billy C L So, Rufina W L Lau, Jie Dai, Grace P Y Szeto
PURPOSE: This study compared the effects of "Ergomotor" intervention and conventional physiotherapy, on influencing the motor control in the neck-shoulder region in people with work-related neck-shoulder pain (WRNSP). METHODS: 101 patients (age range 20-54 years) diagnosed with chronic WRNSP were randomized into control (CO) group (n = 50) and Ergomotor (EM) group (n = 51). Each group received a 12-week intervention. Participants in CO group received treatment for pain relief and general exercises...
January 15, 2018: European Journal of Applied Physiology
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