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https://www.readbyqxmd.com/read/28806767/hydrodynamic-repulsion-of-spheroidal-microparticles-from-micro-rough-surfaces
#1
Aleksey V Belyaev
Isolation of microparticles and biological cells from mixtures and suspensions is a central problem in a variety of biomedical applications. This problem, for instance, is of an immense importance for microfluidic devices manipulating with whole blood samples. It is instructive to know how the mobility and dynamics of rigid microparticles is altered by the presence of micrometer-size roughness on walls. The presented theoretical study addresses this issue via computer simulations. The approach is based on a combination of the Lattice Boltzmann method for calculating hydrodynamics and the Lagrangian Particle dynamics method to describe the dynamics of cell membranes...
2017: PloS One
https://www.readbyqxmd.com/read/28806480/aerosolized-prostacyclins-for-acute-respiratory-distress-syndrome-ards
#2
REVIEW
Arash Afshari, Anders Bastholm Bille, Mikkel Allingstrup
BACKGROUND: Acute respiratory distress syndrome (ARDS) is a critical condition that is associated with high mortality and morbidity. Aerosolized prostacyclin has been used to improve oxygenation despite the limited evidence available so far.This review was originally published in 2010 and updated in 2017. OBJECTIVES: To assess the benefits and harms of aerosolized prostacyclin in adults and children with ARDS. SEARCH METHODS: In this update, we searched CENTRAL (2017, Issue 4); MEDLINE (OvidSP), Embase (OvidSP), ISI BIOSIS Previews, ISI Web of Science, LILACS, CINAHL (EBSCOhost), and three trials registers...
July 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28805436/event-related-potentials-discriminate-familiar-and-unusual-goal-outcomes-in-5-month-olds-and-adults
#3
Christine Michel, Katharina Kaduk, Áine Ní Choisdealbha, Vincent M Reid
Previous event-related potential (ERP) work has indicated that the neural processing of action sequences develops with age. Although adults and 9-month-olds use a semantic processing system, perceiving actions activates attentional processes in 7-month-olds. However, presenting a sequence of action context, action execution and action conclusion could challenge infants' developing working memory capacities. A shortened stimulus presentation of a highly familiar action, presenting only the action conclusion of an eating action, may therefore enable semantic processing in even younger infants...
August 14, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28805300/the-kidney-allocation-system-does-not-appropriately-stratify-risk-of-pediatric-donor-kidneys-implications-for-pediatric-recipients
#4
S M Nazarian, A W Peng, B Duggirala, M Gupta, T Bittermann, S Amaral, M H Levine
Kidney Allocation System (KAS) was enacted in 2014 to improve graft utility, while facilitating transplantation of highly-sensitized patients and preserving pediatric access to high-quality kidneys. Central to this system is the Kidney Donor Profile Index (KDPI), a metric intended to predict transplant outcomes based on donor characteristics but derived using only adult donors. We posited that KAS had inadvertently altered the profile and quantity of kidneys made available to pediatric recipients. This question arose from our observation that most pediatric donors carry a KDPI over 35 and have therefore been rendered relatively inaccessible to pediatric recipients under KAS...
August 14, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28804831/solid-phase-immunoassay-for-the-detection-of-anti-%C3%AE-2-glycoprotein-i-antibodies
#5
Rohan Willis, Elizabeth Papalardo, E Nigel Harris
The discovery in the 1990s that the protein beta-2-glycoprotein I (β2GPI) was an antigen of central importance in the antiphospholipid syndrome (APS) was soon followed by the development of ELISA assays capable of identifying anti-β2GPI antibodies recognizing this antigen. The determination of these antibodies has continued to play a major role in the management of APS patients because of their extremely high specificity for diagnosing the disease, despite their relatively poor sensitivity compared to anticardiolipin antibodies...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804501/regulatory-role-of-redox-balance-in-determination-of-neural-precursor-cell-fate
#6
REVIEW
Mohamed Ariff Iqbal, Eftekhar Eftekharpour
In 1990s, reports of discovery of a small group of cells capable of proliferation and contribution to formation of new neurons in the central nervous system (CNS) reversed a century-old concept on lack of neurogenesis in the adult mammalian brain. These cells are found in all stages of human life and contribute to normal cellular turnover of the CNS. Therefore, the identity of regulating factors that affect their proliferation and differentiation is a highly noteworthy issue for basic scientists and their clinician counterparts for therapeutic purposes...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28803717/noninvasive-stroke-volume-variation-using-electrical-velocimetry-for-predicting-fluid-responsiveness-in-dogs-undergoing-cardiac-surgery
#7
Kazumasu Sasaki, Tatsushi Mutoh, Tomoko Mutoh, Yasuyuki Taki, Ryuta Kawashima
OBJECTIVE: To evaluate the ability of a noninvasive cardiac output monitoring system with electrical velocimetry (EV) for predicting fluid responsiveness in dogs undergoing cardiac surgery. STUDY DESIGN: Prospective experimental trial. ANIMALS: A total of 30 adult Beagle dogs. METHODS: Stroke volume (SV), stroke volume variation (SVV) and cardiac index were measured using the EV device in sevoflurane-anaesthetized, mechanically ventilated dogs undergoing thoracotomies for experimental creation of right ventricular failure...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28802812/noninvasive-brain-stimulation-improves-hemispatial-neglect-after-stroke-a-systematic-review-and-meta-analysis
#8
REVIEW
Ana Paula S Salazar, Patrícia G Vaz, Ritchele R Marchese, Cinara Stein, Camila Pinto, Aline S Pagnussat
OBJECTIVE: To evaluate the effectiveness of noninvasive brain stimulation (NIBS) - repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) - on hemispatial neglect and performance in activities of daily living (ADL) after stroke. DATA SOURCES: MEDLINE (Pubmed), Embase, Cochrane CENTRAL, SCOPUS, Scielo and Physiotherapy Evidence Database (PEDro) were searched from database inception to December 2016. DATA SELECTION: Randomized controlled trials or crossover trials focused on determining the effects of tDCS or rTMS combined or not combined with other therapies for hemispatial neglect after stroke...
August 9, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28802720/application-of-green-fluorescent-protein-to-measure-antimicrobial-efficacy-and-the-kinetics-of-cell-death-against-escherichia-coli
#9
Richard Greenhalgh, Malcolm Greenhalgh, Fadwa Alshareef, Geoffrey D Robson
Industrial antimicrobials have been extensively used to control unwanted microbial growth by incorporation into a variety of products such as plastics and paints, reducing biodeterioration and biofouling and extending the lifespan of the product. Industrial antimicrobials generally have broad sites of action affecting core cellular functions such as central metabolism, enzyme function, cell wall or DNA synthesis and can either be biocidal or biostatic. In addition, susceptibility can be affected by the metabolic state of the microbe, with metabolically inactive cells generally more resistant than metabolically active cells...
August 9, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28801423/comparative-efficacy-and-acceptability-of-antidepressants-psychological-interventions-and-their-combination-for-depressive-disorder-in-children-and-adolescents-protocol-for-a-network-meta-analysis
#10
Xinyu Zhou, Andrea Cipriani, Yuqing Zhang, Pim Cuijpers, Sarah E Hetrick, John R Weisz, Juncai Pu, Cinzia Del Giovane, Toshiaki A Furukawa, Jürgen Barth, David Coghill, Stefan Leucht, Lining Yang, Arun V Ravindran, Peng Xie
INTRODUCTION: Depressive disorder is common in children and adolescents, with important consequences and serious impairments in terms of personal and social functioning. While both pharmacological and psychological interventions have been shown to be effective, there is still uncertainty about the balance between these and what treatment strategy should be preferred in clinical practice. Therefore, we aim to compare and rank in a network meta-analysis (NMA) the commonly used psychological, pharmacological and combined interventions for depressive disorder in children and adolescents...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28800339/perceptual-learning-improves-contrast-sensitivity-visual-acuity-and-foveal-crowding-in-amblyopia
#11
Michele Barollo, Giulio Contemori, Luca Battaglini, Andrea Pavan, Clara Casco
BACKGROUND: Amblyopic observers present abnormal spatial interactions between a low-contrast sinusoidal target and high-contrast collinear flankers. It has been demonstrated that perceptual learning (PL) can modulate these low-level lateral interactions, resulting in improved visual acuity and contrast sensitivity. OBJECTIVE: We measured the extent and duration of generalization effects to various spatial tasks (i.e., visual acuity, Vernier acuity, and foveal crowding) through PL on the target's contrast detection...
August 11, 2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28800019/the-natural-history-of-full-field-stimulus-threshold-decline-in-choroideremia
#12
Ioannis S Dimopoulos, Paul R Freund, Jacob A Knowles, Ian M MacDonald
PURPOSE: To evaluate full-field sensitivity thresholds (FSTs) across a wide range of choroideremia (CHM) disease stages and to determine their applicability as functional endpoints for CHM clinical trials. METHODS: Thirty CHM subjects (60 eyes) and 50 healthy controls (50 eyes) underwent FST testing under dark-adapted conditions to determine rod- and cone-mediated FSTs. Central retinal structure and function were assessed using fundus autofluorescence and microperimetry...
August 9, 2017: Retina
https://www.readbyqxmd.com/read/28799985/rapid-detection-of-bacterial-meningitis-using-a-point-of-care-glucometer
#13
Geoffroy Rousseau, Romain Asmolov, Leslie Grammatico-Guillon, Adrien Auvet, Said Laribi, Denis Garot, Youenn Jouan, Pierre-François Dequin, Antoine Guillon
BACKGROUND: In case of acute bacterial meningitis, a decision on the need for intensive care admission should be made within the first hour. The aim of this study was to assess the ability of a point-of-care glucometer to determine abnormal cerebrospinal fluid (CSF) glucose concentration at the bedside that contributes toward bacterial meningitis diagnosis. METHODS: We carried out a prospective study and simultaneously measured the glucose concentrations in CSF and blood using a central laboratory and a point-of-care glucometer...
August 10, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28799704/the-nature-consequences-and-management-of-neurological-disorders-in-chronic-kidney-disease
#14
REVIEW
Bahman Jabbari, Nosratola D Vaziri
Perhaps no other organ in the body is affected as often and in as many ways as the brain is in patients with chronic kidney disease (CKD). Several factors contribute to the neurological disorders in CKD including accumulation of uremic toxins, metabolic and hemodynamic disorders, oxidative stress, inflammation, and impaired blood brain barrier among others. The neurological disorders in CKD involve both peripheral and central nervous system. The peripheral neurological symptoms of CKD are due to somatic and cranial peripheral neuropathies as well as a myopathy...
August 11, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28799197/cost-effectiveness-of-the-family-nurse-partnership-fnp-programme-in-england-evidence-from-the-building-blocks-trial
#15
Belen Corbacho, Kerry Bell, Eugena Stamuli, Gerry Richardson, Sarah Ronaldson, Kerenza Hood, Julia Sanders, Michael Robling, David Torgerson
RATIONAL, AIMS, AND OBJECTIVES: The Family Nurse Partnership (FNP) is a licensed intensive home visiting intervention developed in the United States. It has been provided in England by the Department of Health since 2006. The Building Blocks trial assessed the effectiveness and cost-effectiveness of FNP in England. METHODS: We performed a cost-utility analysis (National Health Service (NHS) perspective) alongside the Building Blocks trial (over 2.5 y). The analysis was conducted in accordance with National Institute for Health and Clinical Excellence (NICE) reference case standards...
August 11, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28798232/conformational-characterization-of-nerve-growth-factor-%C3%AE-reveals-that-its-regulatory-pro-part-domain-stabilizes-three-loop-regions-in-its-mature-part
#16
Esben Trabjerg, Fredrik Kartberg, Søren Christensen, Kasper D Rand
Nerve growth factor-β (NGF) is essential for correct development of the nervous system. NGF exists both in a mature and a pro-form (proNGF). The two forms have opposing effects on neurons, in which NGF induces proliferation, while proNGF induces apoptosis via binding to a receptor complex of the common neurotrophine receptor (p75NTR) and Sortilin. Overexpression of both proNGF and Sortilin has been associated with several neurodegenerative diseases. Insights into the conformational differences between proNGF and NGF are central to a better understanding of the opposing mechanisms of action of NGF and proNGF on neurons...
August 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28797559/utilization-of-ultrasound-for-the-evaluation-of-small-bowel-obstruction-a-systematic-review-and-meta-analysis
#17
Michael Gottlieb, Gary D Peksa, Ananda Vishnu Pandurangadu, Damali Nakitende, Sukhjit Takhar, Raghu R Seethala
INTRODUCTION: Small bowel obstruction (SBO) is a common presentation to the Emergency Department (ED). While computed tomography (CT) is frequently utilized to confirm the diagnosis, this modality is expensive, exposes patients to radiation, may lead to time delays, and is not universally available. This study aimed to determine the test characteristics of ultrasound for the diagnosis of SBO. METHODS: PubMed, CINAHL, Scopus, the Cochrane Database of Systematic Reviews, and the Cochrane Central Register of Controlled Trials were assessed for prospective trials evaluating the accuracy of ultrasound for the detection of SBO...
July 29, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28797289/insulin-resistance-and-associated-factors-among-hiv-infected-patients-in-sub-saharan-africa-a-cross-sectional-study-from-cameroon
#18
Steve Raoul Ngongang Noumegni, Jobert Richie Nansseu, Vicky Jocelyne Moor Ama, Jean Joel Bigna, Felix Kembe Assah, Magellan Guewo-Fokeng, Steve Leumi, Jean-Claude Katte, Mesmin Dehayem, Andre Pascal Kengne, Eugene Sobngwi
BACKGROUND: Little is known on the magnitude and correlates of insulin resistance in HIV-infected people in Africa. We determined the prevalence of insulin resistance and investigated associated factors in HIV-infected adult Cameroonians. METHODS: We conducted a cross-sectional study at the Yaoundé Central Hospital, Cameroon; during which we enrolled HIV-infected people aged 30 to 74 years with no previous history of cardiovascular disease. An homeostatic model assessment of insulin resistance (HOMA-IR) like index served to assess insulin sensitivity with insulin resistance defined by values of 2...
August 10, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28797227/changes-in-macular-sensitivity-after-half-dose-photodynamic-therapy-for-chronic-central-serous-chorioretinopathy
#19
Alp Atik, Yijun Hu, Honghua Yu, Chun Yang, Bin Cai, Yijing Tao, Dongli Li, Yan Chen, Li Lu, Guodong Li, Ling Yuan
BACKGROUND: To evaluate the macular sensitivity changes after half-dose photodynamic therapy (PDT) for chronic central serous chorioretinopathy (CSCR). METHODS: Eighteen patients (26 eyes) with chronic CSCR were recruited in the same hospital between April 2011 and December 2012. All patients were treated with one session of half-dose PDT after complete ophthalmic examination. Macular sensitivity examination was performed at baseline and 1, 3 and 6 months post-treatment...
August 10, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28797128/field-evaluation-of-a-schistosome-circulating-cathodic-antigen-rapid-test-kit-at-point-of-care-for-mapping-of-schistosomiasis-endemic-districts-in-the-gambia
#20
Bakary Sanneh, Ebrima Joof, Abdoulie M Sanyang, Kristen Renneker, Yaya Camara, Alhagie Papa Sey, Sheriffo Jagne, Ignatius Baldeh, Serign Jawo Ceesay, Sana M Sambou, Kisito Ogoussan
BACKGROUND: Studies in Sub Saharan Africa have shown that the Circulating Cathodic Antigen point-of-care-test (POC-CCA) is more accurate in the detections of S. mansoni than the microscopic Kato-Katz technique but less is known about the accuracy of this rapid test in detecting S. haematobium infections. This study was intended to evaluate the field accuracy of POC-CCA as a rapid test kit for schistosomiasis mapping in The Gambia. METHODS: This prospective study was conducted in 4 regions in the country...
2017: PloS One
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