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https://www.readbyqxmd.com/read/27926943/the-mouse-cytomegalovirus-gene-m42-targets-surface-expression-of-the-protein-tyrosine-phosphatase-cd45-in-infected-macrophages
#1
Nadine Thiel, Kirsten A Keyser, Niels A W Lemmermann, Jennifer D Oduro, Karen Wagner, Carina Elsner, Anne Halenius, Tihana Lenac Roviš, Melanie M Brinkmann, Stipan Jonjić, Luka Cicin-Sain, Martin Messerle
The receptor-like protein tyrosine phosphatase CD45 is expressed on the surface of cells of hematopoietic origin and has a pivotal role for the function of these cells in the immune response. Here we report that following infection of macrophages with mouse cytomegalovirus (MCMV) the cell surface expression of CD45 is drastically diminished. Screening of a set of MCMV deletion mutants allowed us to identify the viral gene m42 of being responsible for CD45 down-modulation. Moreover, expression of m42 independent of viral infection upon retroviral transduction of the RAW264...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27926908/community-perceptions-of-biobanking-participation-a-qualitative-study-among-mexican-americans-in-three-texas-cities
#2
Natalia I Heredia, Sarah Krasny, Larkin L Strong, Laura Von Hatten, Lynne Nguyen, Belinda M Reininger, Lorna H McNeill, María E Fernández
BACKGROUND: Most biospecimens in the US are collected from non-Hispanic Whites, limiting the generalizability of findings. There is a need to increase participation in biobanking among ethnic and racial minorities. The purpose of this study was to use qualitative methods to identify factors that may influence Mexican-American individuals' willingness to participate in biobanking. METHODS: We conducted 15 focus groups in three Texas cities with Mexican-American individuals, in both Spanish and English...
December 8, 2016: Public Health Genomics
https://www.readbyqxmd.com/read/27926877/ptbp1-and-ptbp2-serve-both-specific-and-redundant-functions-in-neuronal-pre-mrna-splicing
#3
John K Vuong, Chia-Ho Lin, Min Zhang, Liang Chen, Douglas L Black, Sika Zheng
Families of alternative splicing regulators often contain multiple paralogs presumed to fulfill different functions. Polypyrimidine tract binding proteins PTBP1 and PTBP2 reprogram developmental pre-mRNA splicing in neurons, but how their regulatory networks differ is not understood. To compare their targeting, we generated a knockin allele that conditionally expresses PTBP1. Bred to a Ptbp2 knockout, the transgene allowed us to compare the developmental and molecular phenotypes of mice expressing only PTBP1, only PTBP2, or neither protein in the brain...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27926854/structural-characterization-and-statistical-mechanical-model-of-epidermal-patterns
#4
Duyu Chen, Wen Yih Aw, Danelle Devenport, Salvatore Torquato
In proliferating epithelia of mammalian skin, cells of irregular polygon-like shapes pack into complex, nearly flat two-dimensional structures that are pliable to deformations. In this work, we employ various sensitive correlation functions to quantitatively characterize structural features of evolving packings of epithelial cells across length scales in mouse skin. We find that the pair statistics in direct space (correlation function) and Fourier space (structure factor) of the cell centroids in the early stages of embryonic development show structural directional dependence (statistical anisotropy), which is a reflection of the fact that cells are stretched, which promotes uniaxial growth along the epithelial plane...
December 6, 2016: Biophysical Journal
https://www.readbyqxmd.com/read/27926807/evaluation-of-a-national-e-mentoring-program-for-ethnically-diverse-student-nurse-midwives-and-student-midwives
#5
Maria Valentin-Welch
INTRODUCTION: The US racial profile is changing rapidly, yet the nursing and midwifery professions are not evolving accordingly. The lack of racial and ethnic diversity within these health professions negatively affects efforts to eliminate persistent health disparities. To address this issue, the Midwives of Color Committee (MOCC) of the American College of Nurse-Midwives (ACNM) created a national online mentoring program in 2011 to support midwifery students of color. An evaluation of the program is reported here...
November 2016: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/27926797/cesarean-outcomes-in-us-birth-centers-and-collaborating-hospitals-a-cohort-comparison
#6
Patrick Thornton, Barbara L McFarlin, Chang Park, Kristin Rankin, Mavis Schorn, Susan Stapleton
INTRODUCTION: High rates of cesarean birth are a significant health care quality issue, and birth centers have shown potential to reduce rates of cesarean birth. Measuring this potential is complicated by lack of randomized trials and limited observational comparisons. Cesarean rates vary by provider type, setting, and clinical and nonclinical characteristics of women, but our understanding of these dynamics is incomplete. METHODS: We sought to isolate labor setting from other risk factors in order to assess the effect of birth centers on the odds of cesarean birth...
December 7, 2016: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/27926716/us-national-academies-report-misses-the-mark
#7
L Val Giddings, Henry Miller
No abstract text is available yet for this article.
December 7, 2016: Nature Biotechnology
https://www.readbyqxmd.com/read/27926547/liver-redistricting-what-are-the-upcoming-changes-in-liver-allocation-in-the-united-states
#8
Therese Bittermann, David S Goldberg
PURPOSE OF REVIEW: Geographic disparity in liver transplantation is substantial in the United States, and primarily a byproduct of artificially created zones of organ distribution. In 2016, the United Network for Organ Sharing (UNOS) put forward a formal redistricting proposal with the goal of reducing this variability by regrouping the country's 58 donation service areas into eight new districts. This review provides a summary of the redistricting proposal's methodologies, expected results, criticisms and next steps...
December 6, 2016: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/27926382/prediction-of-anti-cancer-drug-response-by-kernelized-multi-task-learning
#9
Mehmet Tan
MOTIVATION: Chemotherapy or targeted therapy are two of the main treatment options for many types of cancer. Due to the heterogeneous nature of cancer, the success of the therapeutic agents differs among patients. In this sense, determination of chemotherapeutic response of the malign cells is essential for establishing a personalized treatment protocol and designing new drugs. With the recent technological advances in producing large amounts of pharmacogenomic data, in silico methods have become important tools to achieve this aim...
October 2016: Artificial Intelligence in Medicine
https://www.readbyqxmd.com/read/27926355/characteristics-of-us-travelers-to-zika-virus-affected-countries-in-the-americas-march-2015-october-2016
#10
Sara Lammert, Allison Taylor Walker, Stefanie Erskine, Sowmya R Rao, Douglas H Esposito, Edward T Ryan, Gregory K Robbins, Regina C LaRocque
Zika virus has recently been introduced to the Americas and is spreading rapidly. We evaluated the characteristics of US travelers to Zika virus-affected countries who were seen at Global TravEpiNet sites during March 2015-October 2016. Nearly three quarters of travelers were men or women of reproductive age.
February 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27925858/physical-activity-contributes-to-several-sleep-cardiometabolic-health-relationships
#11
Thirumagal Kanagasabai, Michael C Riddell, Chris I Ardern
PURPOSE: To estimate the contribution of accelerometer-derived physical activity to the relationship between sleep and cardiometabolic health. METHODS: Data from the 2005 to 2006 US National Health and Nutritional Examination Survey were used (N = 1226; 20 years+). Metabolic syndrome (MetS) was defined by the Joint Interim Statement, and sleep quality and quantity by the Sleep Disorders Questionnaire. Physical activity intensities were defined by activity thresholds (counts per minute) as sedentary activity (0-99), light intensity (100-759), lifestyle activity (760-2019), moderate intensity (2020-5996), and vigorous intensity (≥5999)...
December 7, 2016: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/27925745/equivalent-resistance-from-the-quantum-to-the-classical-transport-limit
#12
Saheli Sarkar, Damaris Kröber, Dirk K Morr
We generalize the concept of equivalent resistance to the entire range from coherent quantum to diffusive classical transport by introducing the notion of transport equivalent networks. We show that this novel concept presents us with a platform to simplify the structure of quantum networks while preserving their global and local transport properties, even in the presence of electron-phonon or electron-electron interactions. This allows us to describe the evolution of equivalent quantum networks to equivalent classical resistor networks with increasing interaction strength...
November 25, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27925721/schur-complement-inequalities-for-covariance-matrices-and-monogamy-of-quantum-correlations
#13
Ludovico Lami, Christoph Hirche, Gerardo Adesso, Andreas Winter
We derive fundamental constraints for the Schur complement of positive matrices, which provide an operator strengthening to recently established information inequalities for quantum covariance matrices, including strong subadditivity. This allows us to prove general results on the monogamy of entanglement and steering quantifiers in continuous variable systems with an arbitrary number of modes per party. A powerful hierarchical relation for correlation measures based on the log-determinant of covariance matrices is further established for all Gaussian states, which has no counterpart among quantities based on the conventional von Neumann entropy...
November 25, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27925719/synthetic-dimensions-and-spin-orbit-coupling-with-an-optical-clock-transition
#14
L F Livi, G Cappellini, M Diem, L Franchi, C Clivati, M Frittelli, F Levi, D Calonico, J Catani, M Inguscio, L Fallani
We demonstrate a novel way of synthesizing spin-orbit interactions in ultracold quantum gases, based on a single-photon optical clock transition coupling two long-lived electronic states of two-electron ^{173}Yb atoms. By mapping the electronic states onto effective sites along a synthetic "electronic" dimension, we have engineered fermionic ladders with synthetic magnetic flux in an experimental configuration that has allowed us to achieve uniform fluxes on a lattice with minimal requirements and unprecedented tunability...
November 25, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27925688/rare-deleterious-pard3-variants-in-the-apkc-binding-region-are-implicated-in-the-pathogenesis-of-human-cranial-neural-tube-defects-via-disrupting-apical-tight-junction-formation
#15
Xiaoli Chen, Yu An, Yonghui Gao, Liu Guo, Lei Rui, Hua Xie, Mei Sun, Siv Lam Hung, Xiaoming Sheng, Jizhen Zou, Yihua Bao, Hongyan Guan, Bo Niu, Zandong Li, Richard H Finnell, James F Gusella, Bai-Lin Wu, Ting Zhang
Increasing evidence that mutation of planar cell polarity (PCP) genes contributes to human cranial NTD susceptibility prompted us to hypothesize that rare variants of genes in the core apical-basal polarity (ABP) pathway are risk factors for cranial NTDs. In this study, we screened for rare genomic variation of PARD3 in 138 cranial NTD cases and 274 controls. Overall, the rare deleterious variants of PARD3 were significantly associated with increased risk for cranial NTDs (11/138 vs.7/274, p<0.05, OR = 3...
December 7, 2016: Human Mutation
https://www.readbyqxmd.com/read/27925675/effect-of-increasing-low-intensity-pulsed-ultrasound-and-a-functional-appliance-on-the-mandibular-condyle-in-growing-rats
#16
Harmanpreet Kaur, Hasan Uludağ, Douglas N Dederich, Tarek El-Bialy
OBJECTIVES: Functional appliances are used for treatment of lower-jaw deficiencies in growing individuals; however, their effectiveness is debatable. Low-intensity pulsed ultrasound (US) is a noninvasive method, which has been shown to stimulate cartilage and bone formation with 20 minutes of application. This study was designed to test the hypothesis that increasing low-intensity pulsed US application from 20 to 40 min/d will enhance mandibular condylar growth in growing rats, especially when combined with a functional appliance...
November 28, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27925650/a-pupil-size-response-model-to-assess-fear-learning
#17
Christoph W Korn, Matthias Staib, Athina Tzovara, Giuseppe Castegnetti, Dominik R Bach
During fear conditioning, pupil size responses dissociate between conditioned stimuli that are contingently paired (CS+) with an aversive unconditioned stimulus, and those that are unpaired (CS-). Current approaches to assess fear learning from pupil responses rely on ad hoc specifications. Here, we sought to develop a psychophysiological model (PsPM) in which pupil responses are characterized by response functions within the framework of a linear time-invariant system. This PsPM can be written as a general linear model, which is inverted to yield amplitude estimates of the eliciting process in the central nervous system...
December 7, 2016: Psychophysiology
https://www.readbyqxmd.com/read/27925586/a-bayesian-additive-model-for-understanding-public-transport-usage-in-special-events
#18
Filipe Rodrigues, Stanislav Borysov, Bernardete Ribeiro, Francisco Pereira
Public special events, like sports games, concerts and festivals are well known to create disruptions in transportation systems, often catching the operators by surprise. Although these are usually planned well in advance, their impact is difficult to predict, even when organisers and transportation operators coordinate. The problem highly increases when several events happen concurrently. To solve these problems, costly processes, heavily reliant on manual search and personal experience, are usual practice in large cities like Singapore, London or Tokyo...
December 2, 2016: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/27925423/the-johns-hopkins-venous-thromboembolism-collaborative-multidisciplinary-team-approach-to-achieve-perfect-prophylaxis
#19
REVIEW
Michael B Streiff, Brandyn D Lau, Deborah B Hobson, Peggy S Kraus, Kenneth M Shermock, Dauryne L Shaffer, Victor O Popoola, Jonathan K Aboagye, Norma A Farrow, Paula J Horn, Hasan M Shihab, Peter J Pronovost, Elliott R Haut
Venous thromboembolism (VTE) is an important cause of preventable harm in hospitalized patients. The critical steps in delivery of optimal VTE prevention care include (1) assessment of VTE and bleeding risk for each patient, (2) prescription of risk-appropriate VTE prophylaxis, (3) administration of risk-appropriate VTE prophylaxis in a patient-centered manner, and (4) continuously monitoring outcomes to identify new opportunities for learning and performance improvement. To ensure that every hospitalized patient receives VTE prophylaxis consistent with their individual risk level and personal care preferences, we organized a multidisciplinary task force, the Johns Hopkins VTE Collaborative...
December 2016: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/27925405/animal-to-human-dose-translation-of-obiltoxaximab-for-treatment-of-inhalational-anthrax-under-the-us-fda-animal-rule
#20
C F Nagy, J Mondick, N Serbina, L S Casey, S E Carpenter, J French, R Guttendorf
Obiltoxaximab, a monoclonal antibody against protective antigen (PA), is approved for treatment of inhalational anthrax under the US Food and Drug Administration's (FDA) Animal Rule. The human dose was selected and justified by comparing observed obiltoxaximab exposures in healthy and infected New Zealand White rabbits and cynomolgus macaques to observed exposures in healthy humans, to simulated exposures in healthy and infected humans, and to serum PA levels in infected animals. In humans, at 16 mg/kg intravenous, obiltoxaximab AUC was >2 times that in animals, while maximum serum concentrations were comparable to those in animals and were maintained in excess of the concentration required for PA neutralization in infected animals for 2-3 weeks...
December 7, 2016: Clinical and Translational Science
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