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https://www.readbyqxmd.com/read/29782172/assembly-dynamics-of-plasmonic-dna-capped-gold-nanoparticle-monolayers
#1
Thomas L Derrien, Michelle Zhang, Patrick Dorion, Detlef-M Smilgies, Dan Luo
The self-assembly of nanoparticles in aqueous solutions promises wide applications but requires the careful balance of many parameters not present in organic solvents. While the presence of long-range electrostatic interactions in aqueous solutions may complicate such assemblies, they provide additional parameters through which to control self-assembly. Here, with DNA-capped gold nanoparticles and through variation of the ionic strength in aqueous solutions, we explored the influence of electrostatic interactions on the adsorption of negatively charged nanoparticles on a positively charged surface...
May 21, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29781980/disclosure-coaching-an-ask-tell-ask-model-to-support-clinicians-in-disclosure-conversations
#2
Jo Shapiro, Lynne Robins, Pamela Galowitz, Thomas H Gallagher, Sigall Bell
Error disclosure is a high-stakes, emotionally charged interaction for patients and families as well as clinicians. A failed disclosure can result in emotional distress, reduced patient and family trust, litigation, and lost opportunities to learn from and prevent subsequent errors. However, many clinicians have little expertise in handling these challenging interactions and can inadvertently make a bad situation worse. Even those clinicians who have had formal disclosure training may have trouble remembering what they were taught when faced with the need to actually discuss an error with patients...
May 16, 2018: Journal of Patient Safety
https://www.readbyqxmd.com/read/29781424/review-analysis-and-impact-of-co-circulating-h5n1-and-h9n2-avian-influenza-viruses-in-bangladesh
#3
Rokshana Parvin, Jahan Ara Begum, Mohammed Nooruzzaman, Emdadul Haque Chowdhury, Mohammad Rafiqul Islam, Thomas W Vahlenkamp
Almost the full range of 16 haemagglutinin (HA) and nine neuraminidase subtypes of avian influenza viruses (AIVs) has been detected either in waterfowl, land-based poultry or in the environment in Bangladesh. AIV infections in Bangladesh affected a wide range of host species of terrestrial poultry. The highly pathogenic avian influenza (AI) H5N1 and low pathogenic AI H9N2 were found to co-circulate and be well entrenched in the poultry population, which has caused serious damage to the poultry industry since 2007...
May 21, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29781323/targeting-the-b-cell-receptor-pathway-a-review-of-current-and-future-therapies-for-non-hodgkin-s-lymphoma
#4
Thomas D Rodgers, Patrick M Reagan
The B-cell receptor (BCR) pathway is a crucial aspect of mature lymphocytes and is maintained in B-cell neoplasms. Many small module inhibitors targeting kinases within the BCR pathway are approved, with others in development, offering alternative treatment options to standard chemoimmunotherapy. Areas Covered: This review covers both approved inhibitors and investigational inhibitors of spleen tyrosine kinase (SYK), Bruton's tyrosine kinase (BTK), and phosphoinositide-3-kinase (PI3K) in the treatment of B-cell lymphomas...
May 20, 2018: Expert Opinion on Emerging Drugs
https://www.readbyqxmd.com/read/29781294/microbiota-in-a-cooling-lubrication-circuit-and-an-option-for-controlling-triethanolamine-biodegradation
#5
Thomas Klammsteiner, Heribert Insam, Maraike Probst
Cooling and lubrication agents like triethanolamine (TEA) are essential for many purposes in industry. Due to biodegradation, they need continuous replacement, and byproducts of degradation may be toxic. This study investigates an industrial (1,200 m³) cooling-lubrication circuit (CLC) that has been in operation for 20 years and is supposedly in an ecological equilibrium, thus offering a unique habitat. Next-generation (Illumina Miseq 16S rRNA amplicon) sequencing was used to profile the CLC-based microbiota and relate it to TEA and bicine dynamics at the sampling sites, influent, machine rooms, biofilms and effluent...
May 21, 2018: Biofouling
https://www.readbyqxmd.com/read/29780266/what-is-a-species-a-new-universal-method-to-measure-differentiation-and-assess-the-taxonomic-rank-of-allopatric-populations-using-continuous-variables
#6
Thomas M Donegan
Existing models for assigning species, subspecies, or no taxonomic rank to populations which are geographically separated from one another were analyzed. This was done by subjecting over 3,000 pairwise comparisons of vocal or biometric data based on birds to a variety of statistical tests that have been proposed as measures of differentiation. One current model which aims to test diagnosability (Isler et al. 1998) is highly conservative, applying a hard cut-off, which excludes from consideration differentiation below diagnosis...
2018: ZooKeys
https://www.readbyqxmd.com/read/29779231/specialist-perioperative-allergy-clinic-services-in-the-uk-2018-results-from-the-royal-college-of-anaesthetists-sixth-national-audit-project-nap6-investigation-of-perioperative-anaphylaxis
#7
W Egner, T M Cook, T Garcez, S Marinho, H Kemp, D N Lucas, K Floss, S Farooque, H Torevell, M Thomas, K Ferguson, S Nasser, S Karanam, K-L Kong, N McGuire, M Bellamy, A Warner, J Hitchman, L Farmer, N J N Harper
BACKGROUND: The Royal College of Anaesthetists 6th National Audit Project examined Grade 3-5 perioperative anaphylaxis for one year in the UK. OBJECTIVE: To describe the causes and investigation of anaphylaxis in the NAP6 cohort, in relation to published guidance and previous baseline survey results. METHODS: We used a secure registry to gather details of Grade 3-5 perioperative anaphylaxis. Anonymous reports were aggregated for analysis and reviewed in detail...
May 19, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29779005/hbv-and-hcv-test-uptake-and-correlates-among-men-who-have-sex-with-men-in-china-a-nationwide-cross-sectional-online-survey
#8
Thomas Fitzpatrick, Stephen W Pan, Weiming Tang, Wilson Guo, Joseph D Tucker
OBJECTIVES: Hepatitis B virus (HBV) and hepatitis C virus (HCV) cause substantial morbidity and mortality in low-income and middle-income countries, including China. WHO guidelines recommend men who have sex with men (MSM) receive HBV and HCV screening. The purpose of this study was to determine the proportion of MSM in China who have HBV and HCV tested and identify correlates of test uptake. METHODS: We conducted an online cross-sectional survey of young MSM in China...
May 19, 2018: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/29778799/physiological-vagility-affects-population-genetic-structure-and-dispersal-and-enables-migratory-capacity-in-vertebrates
#9
Thomas V Hancock, Michael S Hedrick
Vagility is defined as the relative capacity for movement. We developed previously a quantitative metric in vertebrates for physiological vagility (PV), the speed at which an animal can move sustainably, incorporating aerobic capacity, body size, body temperature, and transport costs, allowing quantitative tests of whether PV can explain variation in interclass population genetic structure and behaviors involved in dispersal. We found that PV increased with body mass, correlated with maximal dispersal distances, and was inversely related to genetic structure in multiple vertebrate groups...
May 17, 2018: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29778458/noninvasive-diagnosis-of-endometriosis-review-of-current-peripheral-blood-and-endometrial-biomarkers
#10
REVIEW
Dorien F O, Idhaliz Flores, Etienne Waelkens, Thomas D'Hooghe
A noninvasive biomarker-based test could help shorten the diagnostic delay for endometriosis. The most investigated biomarker sources are peripheral blood and endometrium. Discovery of endometriosis biomarkers is often hypothesis-driven, i.e. when one or a few biomarkers are investigated based on their role in the disease pathogenesis. Alternatively, a hypothesis-generating approach has been followed using the "omics" technologies. A variety of biomarkers for endometriosis have been investigated, but no biomarker has been validated for clinical use...
April 13, 2018: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29776718/high-urinary-ferritin-reflects-myoglobin-iron-evacuation-in-dmd-patients
#11
Jérémy Rouillon, Thibaud Lefebvre, Jérôme Denard, Vincent Puy, Raed Daher, Jérôme Ausseil, Aleksandar Zocevic, Paul Fogel, Katell Peoc'h, Brenda Wong, Laurent Servais, Thomas Voit, Herve Puy, Zoubida Karim, Fedor Svinartchouk
Duchenne muscular dystrophy (DMD) is an X-linked disease caused by mutations in the dystrophin gene leading to the absence of the normal dystrophin protein. The efforts of many laboratories brought new treatments of DMD to the reality, but ongoing and forthcoming clinical trials suffer from absence of valuable biomarkers permitting to follow the outcome of the treatment day by day and to adjust the treatment if needed. In the present study the levels of 128 urinary proteins including growth factors, cytokines and chemokines were compared in urine of DMD patients and age related control subjects by antibody array approach...
March 20, 2018: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29776518/factors-associated-with-life-jacket-use-among-cabin-sailboat-and-day-sailor-boaters-in-the-united-states
#12
Natalie Spitzer, Maile T Phillips, Wendy Chow, Thomas W Mangione
INTRODUCTION: In 2015, drowning accounted for 68% of the 626 recreational boating related deaths in the United States. Although life jackets are estimated to prevent between 50% to 80% of boating deaths, approximately 83% of sailboat-related drowning victims were reported to not be wearing life jackets. Life jacket use among adult boaters has remained consistently low across most boat types and may vary by boater, boating, and environmental conditions. Although many risky environmental and boating factors may be associated with a higher risk of boating death, drowning occurs in all situations and it is useful to understand adult life jacket wearing behaviors in differing boating situations...
June 2018: Journal of Safety Research
https://www.readbyqxmd.com/read/29775960/strategies-to-decrease-oxidative-stress-biomarker-levels-in-human-medical-conditions-a-meta-analysis-on-8-iso-prostaglandin-f-2%C3%AE
#13
Thomas J van 't Erve
The widespread detection of elevated oxidative stress levels in many medical conditions has led to numerous efforts to design interventions to reduce its effects. Efforts have been wide-ranging, from dietary changes to administration of antioxidants, supplements, e.g., omega-3-fatty acids, and many medications. However, there is still no systemic assessment of the efficacy of treatments for oxidative stress reduction across a variety of medical conditions. The goal of this meta-analysis is, by combining multiple studies, to quantitate the change in the levels of the popular oxidative stress biomarker 8-iso-prostaglandin F2α (8-iso-PGF2α ) after a variety of treatment strategies in human populations...
May 9, 2018: Redox Biology
https://www.readbyqxmd.com/read/29775467/interactions-among-poverty-gender-and-health-systems-affect-women-s-participation-in-services-to-prevent-hiv-transmission-from-mother-to-child-a-causal-loop-analysis
#14
Jennifer Yourkavitch, Kristen Hassmiller Lich, Valerie L Flax, Elialilia S Okello, John Kadzandira, Anne Ruhweza Katahoire, Alister C Munthali, James C Thomas
Retention in care remains an important issue for prevention of mother-to-child transmission (PMTCT) programs according to WHO guidelines, formerly called the "Option B+" approach. The objective of this study was to examine how poverty, gender, and health system factors interact to influence women's participation in PMTCT services. We used qualitative research, literature, and hypothesized variable connections to diagram causes and effects in causal loop models. We found that many factors, including antiretroviral therapy (ART) use, service design and quality, stigma, disclosure, spouse/partner influence, decision-making autonomy, and knowledge about PMTCT, influence psychosocial health, which in turn affects women's participation in PMTCT services...
2018: PloS One
https://www.readbyqxmd.com/read/29773877/a-simulation-model-for-coupled-heat-transfer-and-moisture-transport-under-the-action-of-heat-source-in-unsaturated-soils
#15
Hua Jin, Yi Guo, Hongkai Deng, Xin Qi, Jinpeng Gui
Ground source heat pump (GSHP) system has been installed as the air-conditioning system worldwide due to it has the characteristics of high efficiency, easy access and environmental protection. Since ground heat exchanger (GHE) plays a key role in the performance of GSHPs, many models of GHE have been proposed to simulate temperature distribution around the borehole. However, most of these models depict only the heat conduction process between buried pipes and surrounding soil based on the line source model or cylindrical source model...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773136/molecular-characterization-of-echinococcus-species-in-dogs-from-four-regions-of-kenya
#16
Erastus Mulinge, Japhet Magambo, David Odongo, Sammy Njenga, Eberhard Zeyhle, Cecilia Mbae, Dorothy Kagendo, Francis Addy, Dennis Ebi, Marion Wassermann, Peter Kern, Thomas Romig
Cystic echinococcosis is endemic both in livestock and humans in many parts of Kenya. However, very little data exists on Echinococcus infections in dogs, and therefore their role in maintaining the transmission cycles and environmental contamination with eggs of Echinococcus species is unknown. The study aimed to establish the prevalence and distribution of Echinococcus granulosus sensu lato causing infection in dogs in Kenya. A total of 1621 dog faecal samples were collected from the environment in four different regions and examined microscopically for the presence of taeniid eggs...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29772774/selected-plant-metabolites-involved-in-oxidation-reduction-processes-during-bud-dormancy-and-ontogenetic-development-in-sweet-cherry-buds-prunus-avium-l
#17
Susanne Baldermann, Thomas Homann, Susanne Neugart, Frank-M Chmielewski, Klaus-Peter Götz, Kristin Gödeke, Gerd Huschek, Getrud E Morlock, Harshadrai M Rawel
Many biochemical processes are involved in regulating the consecutive transition of different phases of dormancy in sweet cherry buds. An evaluation based on a metabolic approach has, as yet, only been partly addressed. The aim of this work, therefore, was to determine which plant metabolites could serve as biomarkers for the different transitions in sweet cherry buds. The focus here was on those metabolites involved in oxidation-reduction processes during bud dormancy, as determined by targeted and untargeted mass spectrometry-based methods...
May 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29772419/duality-of-estrogen-receptor-%C3%AE-action-in-cancer-progression
#18
REVIEW
T C Guillette, Thomas W Jackson, Scott M Belcher
The physiological actions of estrogens are primarily mediated by the nuclear hormone receptors estrogen receptor alpha (ERα) and beta (ERβ). Activities of these nuclear steroid hormone receptors in etiology and progression of many hormone-responsive cancers are well-established, yet the specific role of each receptor, and their various expressed isoforms, in estrogen-responsive cancers remains unclear. Recent advances in nuclear receptor profiling, characterization of expressed splice variants, and the availability of new experimental cancer models, has extended the understanding of the complex interplay between the differentially expressed nuclear estrogen receptors...
May 14, 2018: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29771929/a-gratuitous-%C3%AE-lactamase-inducer-uncovers-hidden-active-site-dynamics-of-the-staphylococcus-aureus-blar1-sensor-domain
#19
Thomas E Frederick, Jeffrey W Peng
Increasing evidence shows that active sites of proteins have non-trivial conformational dynamics. These dynamics include active site residues sampling different local conformations that allow for multiple, and possibly novel, inhibitor binding poses. Yet, active site dynamics garner only marginal attention in most inhibitor design efforts and exert little influence on synthesis strategies. This is partly because synthesis requires a level of atomic structural detail that is frequently missing in current characterizations of conformational dynamics...
2018: PloS One
https://www.readbyqxmd.com/read/29771360/patient-and-treatment-characteristics-by-infecting-organism-in-cerebrospinal-fluid-shunt-infection
#20
Tamara D Simon, Matthew P Kronman, Kathryn B Whitlock, Samuel R Browd, Richard Holubkov, John R W Kestle, Abhaya V Kulkarni, Marcie Langley, David D Limbrick, Thomas G Luerssen, Jerry Oakes, Jay Riva-Cambrin, Curtis Rozzelle, Chevis N Shannon, Mandeep Tamber, John C Wellons Iii, William E Whitehead, Nicole Mayer-Hamblett
Background: Previous studies of cerebrospinal fluid (CSF) shunt infection treatment have been limited in size and unable to compare patient and treatment characteristics by infecting organism. Our objective was to describe variation in patient and treatment characteristics for children with first CSF shunt infection, stratified by infecting organism subgroups outlined in the 2017 Infectious Disease Society of America's (IDSA) guidelines. Methods: We studied a prospective cohort of children <18 years of age undergoing treatment for first CSF shunt infection at one of 7 Hydrocephalus Clinical Research Network hospitals from April 2008 to December 2012...
May 15, 2018: Journal of the Pediatric Infectious Diseases Society
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