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https://www.readbyqxmd.com/read/28429692/pulmonary-artery-and-right-ventricle-function-in-patients-with-bicuspid-aortic-valve
#1
Çetin Geçmen, Gamze Babür Güler, Suzan Hatipoğlu, Muzaffer Kahyaoğlu, Murat Çap, Servet İzci, Çağatay Önal, Emrah Erdoğan, Aykun Hakgör, Özkan Candan, Arzu Kalaycı, Tuba Unkun, İbrahim Akın İzgi
OBJECTIVE: Bicuspid aortic valve (BAV) is a complex developmental anomaly caused by abnormal aortic leaflet formation during valvulogenesis. The present study is an assessment of the effects of BAV disease on the ascending aorta and pulmonary artery (PA), and an evaluation of the consequences for systolic and diastolic functioning of the left and right ventricles. METHODS: Total of 66 patients were eligible for inclusion. Pulmonary artery maximum diameter (PAD) was obtained 1 cm distal to the pulmonary annulus...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28429416/modulation-of-heterotypic-and-homotypic-cell-cell-interactions-via-zwitterionic-lipid-masks
#2
Matthew Park, Wongu Youn, Doyeon Kim, Eun Hyea Ko, Beom Jin Kim, Sung Min Kang, Kyungtae Kang, Insung S Choi
Since the pioneering work by Whitesides, innumerable platforms that aim to spatio-selectively seed cells and control the degree of cell-cell interactions in vitro have been developed. These methods, however, have generally been technically and methodologically complex, or demanded stringent materials and conditions. In this work, we introduce zwitterionic lipids as patternable, cell-repellant masks for selectively seeding cells. The lipid masks are easily removed with a routine washing step under physiological conditions (37 °C, pH 7...
April 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28426743/acute-kidney-injury-can-predict-in-hospital-and-long-term-mortality-in-elderly-patients-undergoing-hip-fracture-surgery
#3
Seong Eun Hong, Tae-Young Kim, Je-Hyun Yoo, Jwa-Kyung Kim, Sung Gyun Kim, Hyung Jik Kim, Young Rim Song
BACKGROUND: Hip fracture is a common health problem in the elderly that is associated with increased mortality. Acute kidney injury (AKI) is a frequent complication in elderly patients undergoing surgery and is associated with the clinical outcome. We evaluated the incidence and risk factors of AKI in elderly patients undergoing hip fracture surgery and the impact of AKI on short- and long-term clinical outcomes. METHODS: We performed a retrospective cohort study of 450 elderly patients who underwent hip fracture surgery between January 2010 and December 2012...
2017: PloS One
https://www.readbyqxmd.com/read/28425262/copeptin-levels-in-carbon-monoxide-poisoning
#4
Güler Irem, Yunsur Çevik, Ahmet Turgut Keskin, Emine Emektar, Osman Lütfi Demirci, Tuba Şafak, Gülşah Çikrikçi Işik, Kadir Okhan Akin
BACKGROUND/AIM: The aim of this study is to identify the copeptin levels in patients presenting with carbon monoxide (CO) poisoning to the emergency department and to investigate its correlation with the neurological effects. MATERIALS AND METHODS: The study group consisted of patients presenting with CO poisoning and carboxyhemoglobin levels >10%. Blood samples for copeptin levels were obtained twice, first at presentation then at the fourth hour of observation...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28425247/meloxicam-and-diclofenac-do-not-change-vegf-and-pdgf-abserum-levels-of-platelet-rich-plasma
#5
Burkay Utku, Gürhan Dönmez, Gülriz Erişgen, Şenay Akin, Haydar Ali Demirel, Feza Korkusuz, Mahmut Nedim Doral
BACKGROUND/AIM: Platelet-rich plasma (PRP) application has gained widespread interest for musculoskeletal injuries. Nonsteroidal antiinflammatory drugs are frequently used in sports medicine before and/or after PRP application. Our study seeks to determine whether serum levels of platelet-derived growth factor-AB (PDGF-AB) and vascular endothelial growth factor (VEGF) levels of PRP would be affected by nonsteroidal antiinflammatory drugs. MATERIALS AND METHODS: Two different final concentrations of diclofenac (0...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424750/celiac-disease-presenting-with-immune-thrombocytopenic-purpura
#6
Hakan Sarbay, Billur Cosan Sarbay, Mehmet Akın, Halil Kocamaz, Mahya Sultan Tosun
Celiac disease (CD) is an immunological disorder. Clinical manifestations occur as a result of intestinal mucosa damage and malabsorption. CD is also associated with extraintestinal manifestations and autoimmune disorders. The coexistence of CD and autoimmune diseases has been described before. In this article, a patient with CD presenting with thrombocytopenia is discussed.
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28424681/the-spontaneous-autoimmune-neuromyopathy-in-icosl-nod-mice-is-cd4-t-cell-and-interferon-%C3%AE-dependent
#7
Claire Briet, Gwladys Bourdenet, Ute C Rogner, Chantal Becourt, Isabelle Tardivel, Laurent Drouot, Christophe Arnoult, Jean-Claude do Rego, Nicolas Prevot, Charbel Massaad, Olivier Boyer, Christian Boitard
Abrogation of ICOS/ICOS ligand (ICOSL) costimulation prevents the onset of diabetes in the non-obese diabetic (NOD) mouse but, remarkably, yields to the development of a spontaneous autoimmune neuromyopathy. At the pathological level, ICOSL(-/-) NOD mice show stronger protection from insulitis than their ICOS(-/-) counterparts. Also, the ICOSL(-/-) NOD model carries a limited C57BL/6 region containing the Icosl nul mutation, but, in contrast to ICOS(-/-) NOD mice, no gene variant previously reported as associated to NOD diabetes...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28424437/-the-effects-of-coronary-artery-disease-severity-on-left-atrial-deformation-parameters-in-patients-with-stable-coronary-artery-disease
#8
Arzu Kalaycı, Can Yücel Karabay, Onur Taşar, Servet İzci, Çetin Geçmen, Vecih Oduncu, İbrahim Akın İzgi, Cevat Kırma
OBJECTIVES: Aim of the present study was to investigate correlation between left atrial (LA) deformation parameters assessed using 2-dimensional (2D) speckle tracking echocardiography (STE) and complexity of coronary artery disease according to SYNTAX score (SXscore) in patients with stable coronary artery disease (SCAD). STUDY DESIGN: Total of 60 moderate-risk SCAD patients (40 men, 20 women) who underwent coronary angiography and 30 healthy controls were included...
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28423997/do-lipid-microemboli-induce-acute-kidney-injury-during-cardiopulmonary-bypass
#9
Richard Issitt, Tim James, Bronagh Walsh, David Voegeli
BACKGROUND: Acute kidney injury (AKI) following cardiopulmonary bypass affects 5% of patients, representing significant postoperative morbidity and mortality. Animal models have shown an increased uptake of lipid microemboli (LME) into the renal vasculature, potentially indicating ischaemic causation. This study tested a new lipid filtration system (RemoweLL) against a conventional system with no lipid-depleting capacity to determine the efficacy of the filtration system and its effects on renal function...
April 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28418341/the-knowledge-level-and-opinions-of-physicians-about-the-medical-and-legal-procedures-related-to-physical-child-abuse
#10
Sema Demirçin, Akın Tütüncüler, Fatmagül Aslan, Sevtap Velipaşaoğlu Güney, Mehmet Atılgan, Hakan Gülkesen
BACKGROUND: In order to diagnose child abuse, physicians need to consider the possibility of abuse in every child they encounter, have sufficient information about the topic and manage the cases according to current law. AIMS: To determine the knowledge level of physicians on child abuse and to learn their opinions about the procedures when they suspect child abuse. STUDY DESIGN: A questionnaire (cross-sectional) study. METHODS: A detailed questionnaire was applied to 390 physicians of whom 233 were general practitioners...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28417517/evaluating-clinical-ethics-support-a-participatory-approach
#11
Suzanne Metselaar, Guy Widdershoven, Rouven Porz, Bert Molewijk
The current process towards formalization within evaluation research, in particular the use of pre-set standards and the focus on predefined outcomes, implies a shift of ownership from the people who are actually involved in real clinical ethics support services (CESS) in a specific context to external stakeholders who increasingly gain a say in what 'good CESS' should look like. The question is whether this does justice to the insights and needs of those who are directly involved in actual CESS practices, be it as receivers or providers...
May 2017: Bioethics
https://www.readbyqxmd.com/read/28416692/immunomodulation-accelerated-neuronal-regeneration-following-selective-rod-photoreceptor-cell-ablation-in-the-zebrafish-retina
#12
David T White, Sumitra Sengupta, Meera T Saxena, Qingguo Xu, Justin Hanes, Ding Ding, Hongkai Ji, Jeff S Mumm
Müller glia (MG) function as inducible retinal stem cells in zebrafish, completely repairing the eye after damage. The innate immune system has recently been shown to promote tissue regeneration in which classic wound-healing responses predominate. However, regulatory roles for leukocytes during cellular regeneration-i.e., selective cell-loss paradigms akin to degenerative disease-are less well defined. To investigate possible roles innate immune cells play during retinal cell regeneration, we used intravital microscopy to visualize neutrophil, macrophage, and retinal microglia responses to induced rod photoreceptor apoptosis...
April 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28416597/posterior-inferotemporal-cortex-cells-use-multiple-input-pathways-for-shape-encoding
#13
Carlos R Ponce, Stephen G Lomber, Margaret S Livingstone
In the macaque monkey brain, posterior inferior temporal cortex (PIT) cells contribute to visual object recognition. They receive concurrent inputs from visual areas V4, V3 and V2. We asked how these different anatomical pathways shape PIT response properties by deactivating them while monitoring PIT activity in two male macaques. We found that cooling of V4 or V2|3 did not lead to consistent changes in population excitatory drive, however, population pattern analyses showed that V4-based pathways were more important than V2|3-based pathways...
April 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28415359/experimental-investigation-of-the-effect-of-thresholding-on-temporal-statistics-of-avalanches
#14
M A Lebyodkin, I V Shashkov, T A Lebedkina, V S Gornakov
Avalanchelike behavior reflected in power-law statistics is a ubiquitous property of extended systems addressed in a number of generic models. The paper presents an experimental investigation of the effect of thresholding on the statistics of durations and waiting times between avalanches using acoustic emission accompanying unstable plastic deformation. It is found that durations of acoustic events obey power-law statistical distributions robust against thresholding. The quiescent time distributions follow the Poisson law for low threshold values...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28414716/dynamics-of-adaptive-immunity-against-phage-in-bacterial-populations
#15
Serena Bradde, Marija Vucelja, Tiberiu Teşileanu, Vijay Balasubramanian
The CRISPR (clustered regularly interspaced short palindromic repeats) mechanism allows bacteria to adaptively defend against phages by acquiring short genomic sequences (spacers) that target specific sequences in the viral genome. We propose a population dynamical model where immunity can be both acquired and lost. The model predicts regimes where bacterial and phage populations can co-exist, others where the populations exhibit damped oscillations, and still others where one population is driven to extinction...
April 17, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28414220/alkane-shape-selective-vapochromic-behavior-based-on-crystal-state-host-guest-complexation-of-pillar-5-arene-containing-one-benzoquinone-unit
#16
Tomoki Ogoshi, Yasuo Shimada, Yoko Sakata, Shigehisa Akine, Tada-Aki Yamagishi
Colored crystals of pillar[5]arene containing one benzoquinone unit were found to exhibit alkane-shape-selective vapochromic behavior. Activated pillar[5]arene crystals, prepared by removing solvated methanol from pillar[5]arene crystals, changed color from dark-brown to light-red after exposure to linear alkane vapors; however, no color changes were observed on exposure to branched or cyclic alkanes. Uptake of methanol vapor by the activated crystals induced a different color change, from dark-brown to black...
April 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28413210/acute-pulmonary-thromboembolism-in-a-case-of-fatal-child-abuse
#17
R Rahimi, Z F Zulkifli, E Omar, H Ismail, S Md Noor
Child abuse is a worldwide problem. The four major types of abuse include physical abuse, child neglect, psychological maltreatment and sexual violence. We describe a fatal case of child abuse which presented with numerous old and recent soft tissue injuries all over the body. The injuries on the legs have immobilized the victim for quite some time, giving rise to deep vein thrombosis, leading to death as a result of acute pulmonary thromboembolism. This case demonstrates presence of both elements of abuse and neglect in one victim...
April 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/28412811/two-dimensional-metal-free-organic-multiferroic-material-for-design-of-multifunctional-integrated-circuits
#18
Zhengyuan Tu, Menghao Wu, Xiao Cheng Zeng
Coexistence of ferromagnetism and ferroelectricity in a single 2D material is highly desirable for integration of multi-functional units in 2D material-based circuits. Herein, we report theoretical evidence of C6N8H organic network as being the first 2D organic multiferroic material with coexisting FM and FE properties. The ferroelectricity stems from multi-mode proton-transfer within the 2D C6N8H network, in which a long-range proton-transfer mode is enabled by the facilitation of oxygen molecule when the network is exposed to the air...
April 15, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28411268/attention-to-multiple-objects-facilitates-their-integration-in-prefrontal-and-parietal-cortex
#19
Yee-Joon Kim, Jeffrey J Tsai, Jeffrey Ojemann, Preeti Verghese
Selective attention is known to interact with perceptual organization. In visual scenes, individual objects that are distinct and discriminable may occur on their own, or in groups such as a stack of books. The main objective of this study is to probe the neural interaction that occurs between individual objects when attention is directed towards one or more objects. Here we record steady-state visual evoked potentials via electrocorticography (ECoG) to directly assess the responses to individual stimuli and to their interaction...
April 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28409845/procedural-success-and-intra-hospital-outcome-related-to-left-atrial-appendage-morphology-in-patients-that-receive-an-interventional-left-atrial-appendage-closure
#20
Christian Fastner, Michael Behnes, Benjamin Sartorius, Annika Wenke, Ibrahim El-Battrawy, Uzair Ansari, Ishar-Singh Gill, Martin Borggrefe, Ibrahim Akin
BACKGROUND: The interventional left atrial appendage (LAA) closure represents an emerging alternative to oral anticoagulation for stroke prevention in certain atrial fibrillation patients. Preliminary results have suggested high procedural success rates and fewer peri-interventional complications; however, there persists an insufficient understanding of the role of many underlying confounding variables (e.g., anatomical characteristics). HYPOTHESIS: It was investigated whether varying LAA morphologies influence procedural success as well as in-hospital outcome...
April 13, 2017: Clinical Cardiology
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