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https://www.readbyqxmd.com/read/28812890/jaqpot-quattro-a-novel-computational-web-platform-for-modelling-and-analysis-in-nanoinformatics
#1
Charalampos Chomenidis, Georgios Drakakis, Georgia Tsiliki, Evangelia Anagnostopoulou, Angelos Valsamis, Philip Doganis, Pantelis Sopasakis, Haralambos Sarimveis
Engineered nanomaterials (ENMs) are increasingly infiltrating our lives due to their applications across multiple fields. However, ENM formulations may result in the modulation of pathways and mechanisms of toxic action that endanger human health and the environment. Alternative testing methods such as in silico approaches are becoming increasingly popular for assessing the safety of ENMs as they are cost- and time- effective. Additionally, computational approaches support the industrial safer-by-design challenge and the REACH legislation objective of reducing animal testing...
August 16, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28812057/screening-for-syphilis-in-cases-of-suspected-gonorrhea-and-chlamydia-infections
#2
Kumara V Nibhanipudi, Kenneth Cody
Background. In all cases of suspected sexually transmitted infections (STIs), it has been routine practice to screen for syphilis with a blood sample. The incidence of syphilis seems to be lower than that of commonly screened STIs. Objective. The objective of our study was to determine whether it is cost-effective to screen for syphilis with serological testing in cases of suspected gonorrhea and chlamydia infections. Hypothesis. Our hypothesis is that it is not cost-effective to screen for syphilis in cases of presumed gonorrhea and chlamydia infections...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28811248/development-of-an-elisa-for-the-diagnosis-of-reactive-ige-antibodies-anti-therapeutic-horse-sera
#3
Salvatore Giovanni De-Simone, Andre Luis Almeida Souza, Aniesse Silva Aguiar, Anibal Raphel Melgarejo, David William Provance-Jr
Hypersensitive diseases that involve IgE reactivity are important concern of public, especially those encompassing the potential pathogenesis from the administration of horse serum-based therapeutics such as antivenoms. A method for the definitive diagnosis of reactive IgE is important for identifying allergic patients to control severe collateral effects during planned and emergency application of immunotherapies when the allergy source cannot be avoided for treatment. To date, no tests have been developed to accompany the wide range of antivenoms produced from horse sera...
August 12, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28811111/cell-cultures-in-drug-discovery-and-development-the-need-of-reliable-in-vitro-in-vivo-extrapolation-for-pharmacodynamics-and-pharmacokinetics-assessment
#4
REVIEW
Karol Jaroch, Alina Jaroch, Barbara Bojko
For ethical and cost-related reasons, use of animals for the assessment of mode of action, metabolism and/or toxicity of new drug candidates has been increasingly scrutinized in research and industrial applications. Implementation of the 3 "Rs"(1); rule (Reduction, Replacement, Refinement) through development of in silico or in vitro assays has become an essential element of risk assessment. Physiologically based pharmacokinetic (PBPK(2)) modeling is the most potent in silico tool used for extrapolation of pharmacokinetic parameters to animal or human models from results obtained in vitro...
July 27, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28810960/talk-to-the-hand-u-s-army-biophysical-testing
#5
William R Santee, Adam W Potter, Karl E Friedl
BACKGROUND: Many people are unaware of the science underlying the biophysical properties of Soldier clothing and personal protective equipment, yet there is a well-refined biomedical methodology initiated by Army physiologists in World War II. This involves a methodical progression of systematic material testing technologies, computer modeling, and human testing that enables more efficient development and rapid evaluation of new concepts for Soldier health and performance. Sophisticated manikins that sweat and move are a central part of this testing continuum...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810295/-utility-and-evaluation-of-immunohistochemical-detection-of-braf-v600e-mutation-in-melanoma
#6
J J Lyu, Y Y Kong, X Cai, X X Shen, Y W Lu, M Ren
Objective: To evaluate the sensitivity, specificity and clinical value of anti-BRAF V600E antibody (clone VE1) in detection of the BRAF V600E mutant in formalin-fixed and paraffin-embedded (FFPE) melanoma specimens by immunohistochemical (IHC) methods. Methods: A total of 50 melanoma samples collected between 2008 and 2016 from 40 patients were analyzed for BRAF mutation (exon 15) by DNA sequencing using FFPE. These tissues were immunostained with VE1 antibody, and the results were analyzed and compared with those by DNA sequencing...
August 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28809183/helping-hands-using-augmented-reality-to-provide-remote-guidance-to-health-professionals
#7
Carey Mather, Tony Barnett, Vlasti Broucek, Annette Saunders, Darren Grattidge, Weidong Huang
Access to expert practitioners or geographic distance can compound the capacity for appropriate supervision of health professionals in the workplace. Guidance and support of clinicians and students to undertake new or infrequent procedures can be resource intensive. The Helping Hands remote augmented reality system is an innovation to support the development of, and oversee the acquisition of procedural skills through remote learning and teaching supervision while in clinical practice. Helping Hands is a wearable, portable, hands-free, low cost system comprised of two networked laptops, a head-mounted display worn by the recipient and a display screen used remotely by the instructor...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28808560/exploring-the-relationship-between-tychoparthenogenesis-and-inbreeding-depression-in-the-desert-locust-schistocerca-gregaria
#8
Chelsea J Little, Marie-Pierre Chapuis, Laurence Blondin, Elodie Chapuis, Hélène Jourdan-Pineau
Tychoparthenogenesis, a form of asexual reproduction in which a small proportion of unfertilized eggs can hatch spontaneously, could be an intermediate evolutionary link in the transition from sexual to parthenogenetic reproduction. The lower fitness of tychoparthenogenetic offspring could be due to either developmental constraints or to inbreeding depression in more homozygous individuals. We tested the hypothesis that in populations where inbreeding depression has been purged, tychoparthenogenesis may be less costly...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28808509/an-educational-intervention-to-increase-awareness-reduces-unnecessary-laboratory-testing-in-an-internal-medicine-resident-run-clinic
#9
Erika Leung, Shuang Song, Omar Al-Abboud, Shahed Shams, John English, Wisam Naji, Yafei Huang, Leon Robison, Fred Balis, Hameem I Kawsar
At our resident-run clinic in an underserved community, laboratory test costs in 2013 exceeded the government subsidy by $400 000. To optimize limited resources and improve patient care, an education program to reduce testing was implemented. Between November 2014 and January 2015, residents attended lectures on utilization of laboratory testing, focusing on standard practice guidelines, and analyses of unnecessary tests. Multivariate nonparametric statistical methods and subgroup analysis were used to evaluate cost reduction...
July 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28807864/reducing-diagnostic-turnaround-times-of-exome-sequencing-for-families-requiring-timely-diagnoses
#10
Aurélie Bourchany, Christel Thauvin-Robinet, Daphné Lehalle, Ange-Line Bruel, Alice Masurel-Paulet, Nolwenn Jean, Sophie Nambot, Marjorie Willems, Laetitia Lambert, Salima El Chehadeh-Djebbar, Elise Schaefer, Aurélia Jaquette, Judith St-Onge, Charlotte Poe, Thibaud Jouan, Martin Chevarin, Patrick Callier, Anne-Laure Mosca-Boidron, Nicole Laurent, Mathilde Lefebvre, Frédéric Huet, Nada Houcinat, Sébastien Moutton, Christophe Philippe, Frédéric Tran-Mau-Them, Antonio Vitobello, Paul Kuentz, Yannis Duffourd, Jean-Baptiste Rivière, Julien Thevenon, Laurence Faivre
BACKGROUND AND OBJECTIVE: Whole-exome sequencing (WES) has now entered medical practice with powerful applications in the diagnosis of rare Mendelian disorders. Although the usefulness and cost-effectiveness of WES have been widely demonstrated, it is essential to reduce the diagnostic turnaround time to make WES a first-line procedure. Since 2011, the automation of laboratory procedures and advances in sequencing chemistry have made it possible to carry out diagnostic whole genome sequencing from the blood sample to molecular diagnosis of suspected genetic disorders within 50 h...
August 11, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28807685/an-rna-polymerase-ii-driven-ebola-virus-minigenome-system-as-an-advanced-tool-for-antiviral-drug-screening
#11
Emily V Nelson, Jennifer R Pacheco, Adam Hume, Tessa N Cressey, Laure R Deflubé, John B Ruedas, John H Connor, Hideki Ebihara, Elke Mühlberger
Ebola virus (EBOV) causes a severe disease in humans with the potential for significant international public health consequences. Currently, treatments are limited to experimental vaccines and therapeutics. Therefore, research into prophylaxis and antiviral strategies to combat EBOV infections is of utmost importance. The requirement for high containment laboratories to study EBOV infection is a limiting factor for conducting EBOV research. To overcome this issue, minigenome systems have been used as valuable tools to study EBOV replication and transcription mechanisms and to screen for antiviral compounds at biosafety level 2...
August 11, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28807555/improving-biogas-production-from-anaerobic-co-digestion-of-sewage-sludge-with-a-thermal-dried-mixture-of-food-waste-cheese-whey-and-olive-mill-wastewater
#12
A E Maragkaki, I Vasileiadis, M Fountoulakis, A Kyriakou, K Lasaridi, T Manios
Anaerobic co-digestion of sewage sludge and other organic wastes at a wastewater treatment plant (WWTP) is a promising method for both energy and material recovery. However, transportation and storage of wastes to WWTP may be the bottleneck for the successful implementation of this technology. In case of wet wastes and wastewater it is possible to reduce their volume and as a result the transportation and storage cost by using a drying process. During this study, the optimization of biogas production from sewage sludge (SS) was attempted by co-digesting with a dried mixture of food waste, cheese whey and olive mill wastewater (FCO)...
August 11, 2017: Waste Management
https://www.readbyqxmd.com/read/28806673/preservation-and-reactivation-of-candidatus-jettenia-asiatica-and-anammoxoglobus-propionicus-using-different-preservative-agents
#13
A Viancelli, M C Pra, L A Scussiato, M Cantão, A M G Ibelli, A Kunz
Anaerobic ammonium oxidation (anammox) bacteria have peculiar characteristics that make them difficult to cultivate. The conservation of these microorganisms in culture collections or laboratories requires successful preservation and reactivation techniques. Furthermore, studies have shown that successful reactivation may be preservative dependent. Considering this, the present study aimed to evaluate the preservation and reactivation of anammox consortia enriched from swine manure treatment lagoons, by using different preservative agents at different temperatures: KNO3 (at 4 °C), glycerol (-20 °C, -80 °C), and skimmed cow milk (-20 °C, -80 °C, -200 °C)...
July 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28806064/conditional-displacement-hybridization-assay-for-multiple-snp-phasing
#14
Tsz Wing Fan, Henson L Lee Yu, I-Ming Hsing
The two chromosomal copies of the human genome are highly polymorphic, and the allelic content on each strand can dictate a person's biological outcomes. While many of the current diagnostic tools are able to detect the presence of multiple mutations at the same time, most cannot determine the phase of these mutations unless long-range PCR or sequencing techniques are used or if templates are compartmentalized into single copies prior to amplification. Here, an enzyme-coupled hybridization assay, named Conditional Displacement Hybridization Assay (CDHA), is described for the concurrent and rapid determination of the presence and phase of SNP variants...
August 14, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28805260/determination-of-carbon-isotope-enrichment-factors-of-cis-dce-after-precursor-amendment
#15
Simon Leitner, Thomas G Reichenauer, Andrea Watzinger
RATIONALE: Bacterial reductive dechlorination of the groundwater contaminant tetrachloroethene (PCE) involves the formation of lower chlorinated metabolites. Metabolites can be instantaneously formed and consumed in this sequential process; quantification and validation of their isotopic effects conventionally rely on separate laboratory microcosm studies. Here, we present an evaluation method enabling the determination of the carbon isotope enrichment factor (ε) for the intermediate cis-dichloroethene (cis-DCE) by a single laboratory microcosm study initially amending the precursor PCE only...
August 14, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28804852/the-overall-hemostatic-potential-ohp-assay
#16
Jennifer Curnow
The principle of the overall hemostatic potential (OHP) assay is the generation of a fibrin time curve by optical density readings, which represent the balance between fibrin generation, triggered by thrombin or tissue factor, and fibrinolysis, triggered by tissue plasminogen activator (tPA). OHP measures the integrated effect of procoagulant, anticoagulant, and fibrinolytic factors, and OHP assay parameters provide a means of quantifying both the coagulation and fibrinolytic potential of platelet poor plasma...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804505/an-etiologic-prediction-model-incorporating-biomarkers-to-predict-the-bladder-cancer-risk-associated-with-occupational-exposure-to-aromatic-amines-a-pilot-study
#17
Giuseppe Mastrangelo, Angela Carta, Cecilia Arici, Sofia Pavanello, Stefano Porru
BACKGROUND: No etiological prediction model incorporating biomarkers is available to predict bladder cancer risk associated with occupational exposure to aromatic amines. METHODS: Cases were 199 bladder cancer patients. Clinical, laboratory and genetic data were predictors in logistic regression models (full and short) in which the dependent variable was 1 for 15 patients with aromatic amines related bladder cancer and 0 otherwise. The receiver operating characteristics approach was adopted; the area under the curve was used to evaluate discriminatory ability of models...
2017: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/28803763/laboratory-simulations-of-the-mixed-solvent-extraction-recovery-of-dominate-polymers-in-electronic-waste
#18
Yi-Bo Zhao, Xu-Dong Lv, Wan-Dong Yang, Hong-Gang Ni
The recovery of four dominant plastics from electronic waste (e-waste) using mixed solvent extraction was studied. The target plastics included polycarbonate (PC), polystyrene (PS), acrylonitrile butadiene styrene (ABS), and styrene acrylonitrile (SAN). The extraction procedure for multi-polymers at room temperature yielded PC, PS, ABS, and SAN in acceptable recovery rates (64%, 86%, 127%, and 143%, respectively, where recovery rate is defined as the mass ratio of the recovered plastic to the added standard polymer)...
August 10, 2017: Waste Management
https://www.readbyqxmd.com/read/28802385/comparison-of-home-sleep-apnea-testing-versus-laboratory-polysomnography-for-the-diagnosis-of-obstructive-sleep-apnea-in-children
#19
Nicholas Scalzitti, Shana Hansen, Stephen Maturo, Joshua Lospinoso, Peter O'Connor
INTRODUCTION: Obstructive sleep apnea (OSA) affects 1-5% of pediatric patients. Laboratory polysomnography is expensive, not always available, and is inconvenient for patients. Our study investigates the diagnostic ability of an unattended ambulatory monitor for the diagnosis of pediatric OSA. METHODS: A prospective study was conducted in children, ages 2-17. Subjects completed in-lab polysomnography simultaneously with ambulatory monitoring. Caregivers attempted home studies on two subsequent nights to compare the home monitor and the laboratory polysomnogram (PSG)...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28800642/cost-effectiveness-evaluation-of-bovine-tuberculosis-surveillance-in-wildlife-in-france-sylvatub-system-using-scenario-trees
#20
Julie Rivière, Yann Le Strat, Pascal Hendrikx, Barbara Dufour
Bovine tuberculosis (bTB) is a common disease in cattle and wildlife, with health, zoonotic and economic implications. Infected wild animals, and particularly reservoirs, could hinder eradication of bTB from cattle populations, which could have an important impact on international cattle trade. Therefore, surveillance of bTB in wildlife is of particular importance to better understand the epidemiological role of wild species and to adapt the control measures. In France, a bTB surveillance system for free-ranging wildlife, the Sylvatub system, has been implemented since 2011...
2017: PloS One
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