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https://www.readbyqxmd.com/read/29346828/dynamic-posterior-stabilization-versus-posterior-lumbar-intervertebral-fusion-a-matched-cohort-study-based-on-the-spine-tango-registry
#1
Kathrin S Bieri, Kelly Goodwin, Emin Aghayev, Hans-Joachim Riesner, Ralph Greiner-Perth
PURPOSE:  The primary aim of dynamic stabilization is to stabilize the spine and preserve function without overstressing adjacent segments, which is a potential risk of fusion surgery. However, direct comparative analyses of the two approaches are still limited, and little is known about the association of patient-reported outcomes with these treatment options. OBJECTIVE:  To compare the clinical outcomes of dynamic posterior stabilization using the DSS Stabilization System (Paradigm Spine, LLC, New York, New York, United States) versus posterior lumbar intervertebral fusion (PLIF) based on data from a spine registry...
January 18, 2018: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/29346792/pancreaticoduodenectomy-and-outcomes-for-groove-pancreatitis
#2
Fabiola Aguilera, Levan Tsamalaidze, Massimo Raimondo, Ruchir Puri, Horacio J Asbun, John A Stauffer
BACKGROUND/AIMS: The operative management of groove pancreatitis (GP) is still a matter of controversy and pancreaticoduodenectomy (PD) can be a high-risk procedure for patients. The aim of this study was to report our 9-year experience of surgical resection for GP and to review relevant literature. METHODS: A retrospective review of patients undergoing pancreatectomy for GP from August 1, 2008, through May 31, 2017 was performed. Patients with clinical, radiologic, and final pathologic confirmation of GP were included...
January 18, 2018: Digestive Surgery
https://www.readbyqxmd.com/read/29346778/diverse-brain-myeloid-expression-profiles-reveal-distinct-microglial-activation-states-and-aspects-of-alzheimer-s-disease-not-evident-in-mouse-models
#3
Brad A Friedman, Karpagam Srinivasan, Gai Ayalon, William J Meilandt, Han Lin, Melanie A Huntley, Yi Cao, Seung-Hye Lee, Patrick C G Haddick, Hai Ngu, Zora Modrusan, Jessica L Larson, Joshua S Kaminker, Marcel P van der Brug, David V Hansen
Microglia, the CNS-resident immune cells, play important roles in disease, but the spectrum of their possible activation states is not well understood. We derived co-regulated gene modules from transcriptional profiles of CNS myeloid cells of diverse mouse models, including new tauopathy model datasets. Using these modules to interpret single-cell data from an Alzheimer's disease (AD) model, we identified microglial subsets-distinct from previously reported "disease-associated microglia"-expressing interferon-related or proliferation modules...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346760/single-cell-transcriptional-profiling-reveals-cellular-diversity-and-intercommunication-in-the-mouse-heart
#4
Daniel A Skelly, Galen T Squiers, Micheal A McLellan, Mohan T Bolisetty, Paul Robson, Nadia A Rosenthal, Alexander R Pinto
Characterization of the cardiac cellulome, the network of cells that form the heart, is essential for understanding cardiac development and normal organ function and for formulating precise therapeutic strategies to combat heart disease. Recent studies have reshaped our understanding of cardiac cellular composition and highlighted important functional roles for non-myocyte cell types. In this study, we characterized single-cell transcriptional profiles of the murine non-myocyte cardiac cellular landscape using single-cell RNA sequencing (scRNA-seq)...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346737/quantitative-and-qualitative-assessment-of-the-relative-arterial-contributions-to-the-calcaneus
#5
Johanna C E Donders, Craig E Klinger, Andre D Shaffer, Lionel E Lazaro, Ryan R Thacher, Jonathan P Dyke, David S Wellman, David L Helfet, Dean G Lorich
BACKGROUND: The purpose of this study was to quantitatively and qualitatively assess relative arterial contributions to the calcaneus. METHOD: Fourteen cadaveric ankle pairs were used. In each specimen, the posterior tibial artery, peroneal artery, and anterior tibial artery were cannulated and used for contrast-enhanced magnetic resonance imaging (MRI) and computed tomography (CT). Quantitative MRI analysis of the pre- and postcontrast MRI scans facilitated assessment of relative arterial contributions...
January 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29346735/mechanisms-of-modulation-of-calcium-phosphate-pathological-mineralization-by-mobile-and-immobile-small-molecule-inhibitors
#6
Meng Li, Jing Zhang, Lijun Wang, Baoshan Wang, Christine V Putnis
Potential pathways for inhibiting crystal growth are either via disrupting local microenvironments surrounding crystal-solution interfaces or physically blocking solute molecule attachment. However, the actual mode of inhibition may be more complicated due to the characteristic time scale for the inhibitor adsorption and relaxation to a well-bound state at crystal surfaces. Here we demonstrate the role of citrate (CA) and hydroxycitrate (HCA) in brushite (DCPD, CaHPO4·2H2O) crystallization over a broad range of both inhibitor concentrations and supersaturations by in situ atomic force microscopy (AFM)...
January 18, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29346733/synthesis-and-structure-activity-relationship-sar-studies-of-novel-pyrazolopyridine-derivatives-as-inhibitors-of-enterovirus-replication
#7
Yanpeng Xing, Jun Zuo, Paul Krogstad, Michael E Jung
A series of novel pyrazolopyridine compounds have been designed and prepared by a general synthetic route. Their activities against the replication of poliovirus-1, EV-A71, and CV-B3 enteroviruses were evaluated. The comprehensive understanding of the Structure-Activity Relationship was obtained by utilizing the variation of four positions, namely N1, C6, C4 and linker unit. From the screened analogues, the inhibitors with the highest selectivity indices at 50% inhibition of viral replication (SI50) were those with isopropyl at the N1 position and thiophenyl-2-yl unit at C6 position...
January 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29346722/layer-by-layer-epitaxial-growth-of-defect-engineered-strontium-cobaltites
#8
Tassie Andersen, Seyoung Cook, Gang Wan, Hawoong Hong, Laurence D Marks, Dillon D Fong
Control over structure and composition of (ABO3) perovskite oxides offers exciting opportunities since these materials possess unique, tunable properties. Perovskite oxides with cobalt B-site cations are particularly promising, as the range of the cation's stable oxidation states leads to many possible structural frameworks. Here, we report growth of strontium cobalt oxide thin films by molecular beam epitaxy, and conditions necessary to stabilize different defect concentration phases. In situ X-ray scattering is used to monitor structural evolution during growth, while in situ X-ray absorption near-edge spectroscopy is used to probe oxidation state and measure changes to oxygen vacancy concentration as a function of film thickness...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29346719/a-tunable-molten-salt-route-for-scalable-synthesis-of-ultrathin-amorphous-carbon-nanosheets-as-high-performance-anode-materials-for-lithium-ion-batteries
#9
Yixian Wang, Wei Tian, Luhai Wang, Haoran Zhang, Jialiang Liu, Tingyue Peng, Lei Pan, Xiaobo Wang, Mingbo Wu
Amorphous carbon is regarded as a promising alternative to commercial graphite as the lithium-ion battery anode due to its capability to reversibly store more lithium ions. However, the structural disorder with a large number of defects can lead to low electrical conductivity of the amorphous carbon, thus limiting its application for high power output. Herein, ultrathin amorphous carbon nanosheets were prepared from petroleum asphalt through tuning the carbonization temperature in a molten-salt medium. The amorphous nanostructure with expanded carbon interlayer spacing can provide substantial active sites for lithium storage while the two-dimensional (2D) morphology can facilitate fast electrical conductivity...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29346712/synergetic-effects-of-prenatal-and-postnatal-high-sucrose-intake-on-glucose-tolerance-and-hepatic-insulin-resistance-in-rat-offspring
#10
Pengjie Zhang, Di Zhu, Yueming Zhang, Lingjun Li, Xionghui Chen, Wenna Zhang, Ruixiu Shi, Jianying Tao, Bing Han, Zhice Xu
SCOPE: High sucrose intake during pregnancy is linked to type 2 diabetes mellitus and altered insulin resistance. METHODS AND RESULTS: This study attempted to ascertain whether prenatal high sucrose intake (20% sucrose) alleviates the detrimental effects of high postnatal sugar consumption in the offspring, and the molecular mechanisms were investigated using a rat model. High prenatal sucrose exposure increased the body weight of the offspring at 1 to 3 weeks of age...
January 18, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29346698/procedural-knowledge-and-skills-of-residents-entering-canadian-family-medicine-programs-in-alberta
#11
Juan Antonio Garcia-Rodriguez, James A Dickinson, Grace Perez, David Ross, Lilian Au, Shelley Ross, Oksana Babenko, Ian Johnston
BACKGROUND AND OBJECTIVES: Incoming family medicine (FM) residents start residency with different levels of procedural training. Understanding their baseline skill level is necessary to plan the educational experiences and teaching methods that will provide the desired knowledge, skills, and attitudes related to performing medical procedures. METHODS: A survey of 69 procedures based on the core list issued by the College of Family Physicians of Canada was administered to incoming residents in Alberta (Calgary and Edmonton FM programs)...
January 2018: Family Medicine
https://www.readbyqxmd.com/read/29346689/initial-development-and-validation-of-a-family-medicine-attitudes-questionnaire
#12
Julie Phillips, Jacob Prunuske, Laurie Fitzpatrick, Brian Mavis
BACKGROUND AND OBJECTIVES: Although many curricular and policy interventions are designed to influence students' attitudes toward family medicine, assessment of these interventions is limited by lack of a comprehensive, validated measure of students' attitudes. We sought to develop and validate a questionnaire that effectively assesses medical student attitudes toward family medicine. METHODS: A 31-item questionnaire was assessed for internal, external, and content validity...
January 2018: Family Medicine
https://www.readbyqxmd.com/read/29346677/anatomical-explanations-for-acute-depressions-in-radial-pattern-of-axial-sap-flow-in-two-diffuse-porous-mangrove-species-implications-for-water-use
#13
Hewei Zhao, Shengchang Yang, Xudong Guo, Congjiao Peng, Xiaoxuan Gu, Chuanyuan Deng, Luzhen Chen
Mangrove species have developed uniquely efficient water-use strategies in order to survive in highly saline and anaerobic environments. Herein, we estimated the stand water use of two diffuse-porous mangrove species of the same age, Sonneratia apetala Buch. Ham and Sonneratia caseolaris (L.) Engl., growing in a similar intertidal environment. Specifically, to investigate the radial patterns of axial sap flow density (Js) and understand the anatomical traits associated with them, we measured axial sap flow density in situ together with micromorphological observations...
January 16, 2018: Tree Physiology
https://www.readbyqxmd.com/read/29346663/resident-participation-in-neighbourhood-audit-tools-a-scoping-review
#14
Aafke C L Hofland, Jeroen Devilee, Elise van Kempen, Lea den Broeder
Background: Healthy urban environments require careful planning and a testing of environmental quality that goes beyond statutory requirements. Moreover, it requires the inclusion of resident views, perceptions and experiences that help deepen the understanding of local (public health) problems. To facilitate this, neighbourhoods should be mapped in a way that is relevant to them. One way to do this is participative neighbourhood auditing. This paper provides an insight into availability and characteristics of participatory neighbourhood audit instruments...
February 1, 2018: European Journal of Public Health
https://www.readbyqxmd.com/read/29346662/shifting-determinants-of-health-inequalities-in-unstable-times-portugal-as-a-case-study
#15
Inês Campos-Matos, Giuliano Russo, Luzia Gonçalves
Background: We explore how health inequalities (HI) changed in Portugal over the last decade, considering it is one of the most unequal European countries and has gone through major economic changes. We describe how inequalities in limitations changed considering different socioeconomic determinants, in order to understand what drove changes in HI. Methods: We used cross-sectional waves from the European Survey on Income and Living Conditions database to determine how inequalities in health limitations changed between 2004 and 2014 in Portugal in residents aged 16 years and over...
February 1, 2018: European Journal of Public Health
https://www.readbyqxmd.com/read/29346659/case-report-facial-nerve-bifurcation-noted-during-resection-of-vestibular-schwannoma
#16
Jennifer D Sokolowski, Douglas S Ruhl, Bradley W Kesser, Ashok R Asthagiri
BACKGROUND AND IMPORTANCE: Resection of cerebellopontine angle tumors is challenging because the proximity of the facial nerve puts it at risk of inadvertent injury and subsequent dysfunction. It is critical to consider variations in anatomy and be aware of the potential deviations in the course of the nerve in order to avoid damage. CLINICAL PRESENTATION: We present a case of a facial nerve bifurcation identified during resection of a vestibular schwannoma. CONCLUSION: This is the only reported case of proximal facial nerve bifurcation...
January 13, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29346654/evaluation-of-system-mapping-approaches-in-identifying-patient-safety-risks
#17
Mecit Can Emre Simsekler, James R Ward, P John Clarkson
Objective: While many system mapping approaches (SMAs) have been broadly used in safety-critical industries, few have so far been employed in the healthcare field to assist in the identification of patient safety risks. In this study, we evaluated a set of system modelling approaches to assess their potential contribution to the identification of risks affecting patient safety. The aim was to gain a greater understanding of the practical application of system modelling approaches with the help of the risk categorization framework developed in this study...
January 16, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29346651/bipartite-network-analysis-of-gene-sharings-in-the-microbial-world
#18
Eduardo Corel, Raphaël Méheust, Andrew K Watson, James O McInerney, Philippe Lopez, Eric Bapteste
Extensive microbial gene flows affect how we understand virology, microbiology, medical sciences, genetic modification and evolutionary biology. Phylogenies only provide a narrow view of these gene flows: plasmids and viruses, lacking core genes, cannot be attached to cellular life on phylogenetic trees. Yet viruses and plasmids have a major impact on cellular evolution, affecting both the gene content and the dynamics of microbial communities. Using bipartite graphs that connect up to 149,000 clusters of homologous genes with 8217 related and unrelated genomes, we can in particular show patterns of gene sharing that do not map neatly with the organismal phylogeny...
January 15, 2018: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29346641/uncovering-behavioural-diversity-amongst-high-strength-pseudomonas-spp-surfactants-at-the-limit-of-liquid-surface-tension-reduction
#19
Kamaluddeen Kabir, Yusuf Y Deeni, Simona M Hapca, Luke Moore, Andrew J Spiers
Bacterial bio-surfactants have a wide range of biological functions and biotechnological applications. Previous analyses had suggested a limit to their reduction of aqueous liquid surface tensions (γMin), and here we confirm this in an analysis of 25 Pseudomonas spp. strains isolated from soil which produce high-strength surfactants that reduce surface tensions to 25.2 ± 0.1-26.5 ± 0.2 mN.m-1 (the surface tension of sterile growth medium and pure water was 52.9 ± 0.4 mN.m-1 and 72.1 ± 1.2 mN.m-1, respectively)...
January 16, 2018: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29346638/standardized-languages-and-notations-for-graphical-modelling-of-patient-care-processes-a-systematic-review
#20
Pierpaolo Mincarone, Carlo Giacomo Leo, Maria Del Mar Trujillo-Martín, Jan Manson, Roberto Guarino, Giuseppe Ponzini, Saverio Sabina
Purpose: The importance of working toward quality improvement in healthcare implies an increasing interest in analysing, understanding and optimizing process logic and sequences of activities embedded in healthcare processes. Their graphical representation promotes faster learning, higher retention and better compliance. The study identifies standardized graphical languages and notations applied to patient care processes and investigates their usefulness in the healthcare setting. Data sources: Peer-reviewed literature up to 19 May 2016...
January 16, 2018: International Journal for Quality in Health Care
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