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Thomas Spray

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https://www.readbyqxmd.com/read/29229808/impact-of-insecticide-resistance-in-anopheles-arabiensis-on-malaria-incidence-and-prevalence-in-sudan-and-the-costs-of-mitigation
#1
Hmooda Toto Kafy, Bashir Adam Ismail, Abraham Peter Mnzava, Jonathan Lines, Mogahid Shiekh Eldin Abdin, Jihad Sulieman Eltaher, Anuar Osman Banaga, Philippa West, John Bradley, Jackie Cook, Brent Thomas, Krishanthi Subramaniam, Janet Hemingway, Tessa Bellamy Knox, Elfatih M Malik, Joshua O Yukich, Martin James Donnelly, Immo Kleinschmidt
Insecticide-based interventions have contributed to ∼78% of the reduction in the malaria burden in sub-Saharan Africa since 2000. Insecticide resistance in malaria vectors could presage a catastrophic rebound in disease incidence and mortality. A major impediment to the implementation of insecticide resistance management strategies is that evidence of the impact of resistance on malaria disease burden is limited. A cluster randomized trial was conducted in Sudan with pyrethroid-resistant and carbamate-susceptible malaria vectors...
December 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29222172/proximal-aberrant-crypt-foci-associate-with-synchronous-neoplasia-and-are-primed-for-neoplastic-progression
#2
David A Drew, Allen Mo, James J Grady, Richard G Stevens, Joel B Levine, Bruce M Brenner, Joseph C Anderson, Faripour Forouhar, Michael J O'Brien, Thomas J Devers, Daniel W Rosenberg
Aberrant crypt foci (ACF) are the earliest morphologically identifiable lesion found within the human colon. Despite their relatively high frequency in the distal colon, few studies have examined the molecular characteristics of ACF within the proximal colon. In the following study, clinical participants (n=184) were screened for ACF using high-definition chromoendoscopy with contrast dye-spray. Following pathological confirmation, ACF biopsies were subjected to laser-capture microdissection (LCM) and epithelial cells were evaluated for somatic mutations with a customized colorectal cancer mutation panel using DNA-mass spectrometry...
December 8, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29181795/comparison-of-3d-echocardiogram-derived-3d-printed-valve-models-to-molded-models-for-simulated-repair-of-pediatric-atrioventricular-valves
#3
Adam B Scanlan, Alex V Nguyen, Anna Ilina, Andras Lasso, Linnea Cripe, Anusha Jegatheeswaran, Elizabeth Silvestro, Francis X McGowan, Christopher E Mascio, Stephanie Fuller, Thomas L Spray, Meryl S Cohen, Gabor Fichtinger, Matthew A Jolley
Mastering the technical skills required to perform pediatric cardiac valve surgery is challenging in part due to limited opportunity for practice. Transformation of 3D echocardiographic (echo) images of congenitally abnormal heart valves to realistic physical models could allow patient-specific simulation of surgical valve repair. We compared materials, processes, and costs for 3D printing and molding of patient-specific models for visualization and surgical simulation of congenitally abnormal heart valves...
November 27, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/29175187/safety-assessment-of-the-use-of-bacillus-based-cleaning-products
#4
Ninna W Berg, Matthew R Evans, John Sedivy, Robert Testman, Kimon Acedo, Domenic Paone, David Long, Thomas G Osimitz
Non-pathogenic Bacillus species used in cleaning products produce the appropriate enzymes to degrade stains and soils. However, there is little scientific data regarding the human exposure by inhalation of Bacillus spores during or after use of microbial-based cleaning products. Herein, air samples were collected at various locations in a ventilated, carpeted, residential room to determine the air concentration of viable bacteria and spores during and after the application of microbial-based carpet cleaning products containing Bacillus spores...
November 21, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29047739/temperature-dependent-diffuse-reflectance-spectroscopy-of-plasma-sprayed-cr-doped-%C3%AE-alumina-using-supercontinuum-laser-illumination-and-co2-laser-heating
#5
Michael C Brupbacher, Dajie Zhang, William M Buchta, Marc B Airola, David M Brown, Michael E Thomas, James B Spicer
This study presents results for the high-temperature (up to 1550 K) optical properties of polycrystalline Cr-doped α-alumina materials. Diffuse reflectance spectra in the wavelength range of 510-840 nm are presented as a function of temperature to illustrate changes to the optical behavior of these materials including a previously unreported thermally activated splitting of the U-band absorption (A24→T24) in octahedrally coordinated Cr(3+). Measurements were made using a unique laser-based approach for high-temperature solid-state spectroscopy, involving front-side supercontinuum laser illumination and back-side CO2 laser heating...
September 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29032297/postoperative-complications-following-primary-penile-inversion-vaginoplasty-among-330-male-to-female-transgender-patients
#6
Thomas W Gaither, Mohannad A Awad, E Charles Osterberg, Gregory P Murphy, Angelita Romero, Marci L Bowers, Benjamin N Breyer
PURPOSE: Studies of surgical complications of penile inversion vaginoplasty are limited due to small sample sizes. We describe postoperative complications after penile inversion vaginoplasty and evaluated age, body mass index and years on hormone replacement therapy as risk factors for complications. MATERIALS AND METHODS: We retrospectively reviewed the records of male to female patients who presented for primary penile inversion vaginoplasty to a high volume surgeon (MLB) from 2011 to 2015...
October 12, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28990923/framework-for-evaluating-the-health-impact-of-the-scale-up-of-malaria-control-interventions-on-all-cause-child-mortality-in-sub-saharan-africa
#7
Yazoume Yé, Thomas P Eisele, Erin Eckert, Eline Korenromp, Jui A Shah, Christine L Hershey, Elizabeth Ivanovich, Holly Newby, Liliana Carvajal-Velez, Michael Lynch, Ryuichi Komatsu, Richard E Cibulskis, Zhuzhi Moore, Achuyt Bhattarai
Concerted efforts from national and international partners have scaled up malaria control interventions, including insecticide-treated nets, indoor residual spraying, diagnostics, prompt and effective treatment of malaria cases, and intermittent preventive treatment during pregnancy in sub-Saharan Africa (SSA). This scale-up warrants an assessment of its health impact to guide future efforts and investments; however, measuring malaria-specific mortality and the overall impact of malaria control interventions remains challenging...
September 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28937161/cold-sprayed-wo3-and-tio2-electrodes-for-photoelectrochemical-water-and-methanol-oxidation-in-renewable-energy-applications
#8
Christoph Haisch, Jenny Schneider, Manuel Fleisch, Henning Gutzmann, Thomas Klassen, Detlef W Bahnemann
Films prepared by cold spray have potential applications as photoanodes in electrochemical water splitting and waste water purification. In the present study cold sprayed photoelectrodes produced with WO3 (active under visible light illumination) and TiO2 (active under UV illumination) on titanium metal substrates were investigated as photoanodes for the oxidation of water and methanol, respectively. Methanol was chosen as organic model pollutant in acidic electrolytes. Main advantages of the cold sprayed photoelectrodes are the improved metal-semiconductor junctions and the superior mechanical stability...
September 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28927471/a-vascular-endothelial-growth-factor-a-genetic-variant-is-associated-with-improved-ventricular-function-and-transplant-free-survival-after-surgery-for-non-syndromic-chd
#9
Constantine D Mavroudis, Daniel Seung Kim, Nancy Burnham, Alexandra H Morss, Jerry H Kim, Amber A Burt, David R Crosslin, Donna M McDonald-McGinn, Elaine H Zackai, Meryl S Cohen, Susan C Nicolson, Thomas L Spray, Ian B Stanaway, Deborah A Nickerson, Mark W Russell, Hakon Hakonarson, Gail P Jarvik, J William Gaynor
BACKGROUND: We have previously shown that the minor alleles of vascular endothelial growth factor A (VEGFA) single-nucleotide polymorphism rs833069 and superoxide dismutase 2 (SOD2) single-nucleotide polymorphism rs2758331 are both associated with improved transplant-free survival after surgery for CHD in infants, but the underlying mechanisms are unknown. We hypothesised that one or both of these minor alleles are associated with better systemic ventricular function, resulting in improved survival...
September 20, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28901297/metabolic-effects-of-inhaled-salbutamol-determined-by-exhaled-breath-analysis
#10
Martin T Gaugg, Anna Engler, Yvonne Nussbaumer-Ochsner, Lukas Bregy, Anna S Stöberl, Thomas Gaisl, Tobias Bruderer, Renato Zenobi, Malcolm Kohler, Pablo Martinez-Lozano Sinues
We explore whether real-time breath analysis by high resolution mass spectrometry is suitable to monitor changes at the metabolic level due to inhaling bronchodilator medication. We compared the breath levels of metabolites in a group of patients (n = 50) at baseline and 10 and 30 min after inhalation of 200 μg salbutamol. The same procedure was performed with a group of controls (n = 48) inhaling a placebo spray. A total of 131 mass spectral features were significantly altered as a result of inhaling medication, but not after inhaling placebo...
September 13, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28884523/response-of-umbilical-cord-mesenchymal-stromal-cells-to-varying-titanium-topographical-signals
#11
Ines Lauria, Miriam Höner, Sebastian Kant, Roswitha Davtalab, Thomas Weik, Katrin Sternberg, Horst Fischer
A wide variety of titanium implant modifications have been developed to improve tissue- or cell-material interactions including bone bonding, implant failure, and contact osteogenesis. Osteogenesis can be stimulated by mechanobiological signals such as topography though translation of in vivo reactions to in vitro bioactivity and stem cell culture data, and vice versa, is challenging. We hypothesized that a systematic in vitro approach comparing clinically well-accepted implant surface topographical modifications could shed light on potential cell biological mechanisms provoked by submicron-, micron- or macrostructured surfaces...
September 7, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28869641/multicomponent-equiatomic-rare-earth-oxides-with-a-narrow-band-gap-and-associated-praseodymium-multivalency
#12
Abhishek Sarkar, Christoph Loho, Leonardo Velasco, Tiju Thomas, Subramshu S Bhattacharya, Horst Hahn, Ruzica Djenadic
New multicomponent equiatomic rare earth oxides (ME-REOs) containing 3-7 rare earth elements (Ce, Gd, La, Nd, Pr, Sm and Y) in equiatomic proportions are synthesized using nebulized spray pyrolysis. All the systems crystallized as a phase pure fluorite type (Fm3[combining macron]m) structure in spite of the high chemical complexity. A nominal increase in the lattice parameter compared to CeO2 is observed in all ME-REOs. X-ray photoelectron spectroscopy performed on the ME-REOs confirmed that all the constituent rare earth elements are present in the 3+ oxidation state, except for Ce and Pr which are present in 4+ and in a mixed (3+/4+) oxidation state, respectively...
September 28, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28865490/mapping-insecticide-resistance-and-characterization-of-resistance-mechanisms-in-anopheles-arabiensis-diptera-culicidae-in-ethiopia
#13
Eba Alemayehu, Abebe Asale, Kasahun Eba, Kefelegn Getahun, Kora Tushune, Astrid Bryon, Evangelia Morou, John Vontas, Thomas Van Leeuwen, Luc Duchateau, Delenasaw Yewhalaw
BACKGROUND: The emergence and spread of insecticide resistance in the major African malaria vectors Anopheles gambiae (s.s.) and An. arabiensis may compromise the current vector control interventions and threatens the global malaria control and elimination efforts. METHODS: Insecticide resistance was monitored in several study sites in Ethiopia from 2013 to 2015 using papers impregnated with discriminating concentrations of DDT, deltamethrin, bendiocarb, propoxur, malathion, fenitrothion and pirimiphos-methyl, following the WHO insecticide susceptibility test procedure...
September 2, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28851719/surgical-and-catheter-based-reinterventions-are-common-in-long-term-survivors-of-the-fontan-operation
#14
Tacy E Downing, Kiona Y Allen, David J Goldberg, Lindsay S Rogers, Chitra Ravishankar, Jack Rychik, Stephanie Fuller, Lisa M Montenegro, James M Steven, Matthew J Gillespie, Jonathan J Rome, Thomas L Spray, Susan C Nicolson, J William Gaynor, Andrew C Glatz
BACKGROUND: There are limited follow-up studies examining surgical and catheter-based reinterventions in long-term survivors of the Fontan operation. METHODS AND RESULTS: All 773 patients who underwent Fontan at our institution between 1992 and 2009 were retrospectively reviewed. Current information regarding post-Fontan intervention was available for 70%. By 20 years after Fontan, 65% of patients had experienced either surgical or transcatheter intervention. The median time to first reintervention was 9...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28826991/parents-preferences-regarding-public-reporting-of-outcomes-in-congenital-heart-surgery
#15
Mallory L Irons, J William Gaynor, Thomas L Spray, Chris Feudtner
BACKGROUND: Calls for public reporting of outcomes in congenital heart surgery have led to several different reporting schemes, including a star rating system and benchmark procedure-specific mortality data tables. Important unanswered questions remain about the optimal format and content of public reporting of congenital heart surgery outcomes. METHODS: In conjunction with three parent advocacy groups, we developed a questionnaire to gauge parents' attitudes regarding the format and content of an "optimal" public reporting scheme...
August 19, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28818458/colonic-delivery-of-indometacin-loaded-pga-co-pdl-microparticles-coated-with-eudragit-l100-55-from-fast-disintegrating-tablets
#16
Hesham M Tawfeek, Ahmed A H Abdellatif, Thomas J Dennison, Afzal R Mohammed, Younis Sadiq, Imran Y Saleem
The aim of this work was to investigate the efficient targeting and delivery of indometacin (IND), as a model anti-inflammatory drug to the colon for treatment of inflammatory bowel disease. We prepared fast disintegrating tablets (FDT) containing IND encapsulated within poly(glycerol-adipate-co-ɷ-pentadecalactone), PGA-co-PDL, microparticles and coated with Eudragit L100-55 at different ratios (1:1.5, 1:1, 1:0.5). Microparticles encapsulated with IND were prepared using an o/w single emulsion solvent evaporation technique and coated with Eudragit L-100-55 via spray drying...
August 15, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28766759/value-of-a-flow-cytometry-cross-match-in-the-setting-of-a-negative-complement-dependent-cytotoxicity-cross-match-in-heart-transplant-recipients
#17
Britton C Keeshan, Matthew J O'Connor, Kimberly Y Lin, Dimitrios Monos, Curt Lind, Christopher E Mascio, Jesus Eduardo Rame, Thomas L Spray, Robert E Shaddy, Joseph W Rossano
Complement-dependent cytotoxicity cross-match (CDCXM) is used for evaluation of preformed HLA-specific antibodies in patients undergoing heart transplantation. Flow cytometry cross-match (FCXM) is a more sensitive assay and used with increasing frequency. To determine the clinical relevance of a positive FCXM in the context of negative CDCXM in heart transplantation, the United Network for Organ Sharing (UNOS) database was analyzed. Kaplan-Meier analysis and Cox proportional hazard modeling were used to assess graft survival for three different patient cohorts defined by cross-match results: T-cell and B-cell CDCXM+ ("CDCXM+" cohort), CDCXM- but T-cell and/or B-cell FCXM+ ("FCXM+" cohort), and T-cell/B-cell CDCXM- and FCXM- ("XM-" cohort)...
August 2, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28762740/in-situ-characterization-of-pharmaceutical-formulations-by-dynamic-nuclear-polarization-enhanced-mas-nmr
#18
Qing Zhe Ni, Fengyuan Yang, Thach V Can, Ivan V Sergeyev, Suzanne M D'Addio, Sudheer K Jawla, Yongjun Li, Maya P Lipert, Wei Xu, R Thomas Williamson, Anthony Leone, Robert G Griffin, Yongchao Su
A principal advantage of magic angle spinning (MAS) NMR spectroscopy lies in its ability to determine molecular structure in a noninvasive and quantitative manner. Accordingly, MAS should be widely applicable to studies of the structure of active pharmaceutical ingredients (API) and formulations. However, the low sensitivity encountered in spectroscopy of natural abundance APIs present at low concentration has limited the success of MAS experiments. Dynamic nuclear polarization (DNP) enhances NMR sensitivity and can be used to circumvent this problem provided that suitable paramagnetic polarizing agent can be incorporated into the system without altering the integrity of solid dosages...
August 31, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28709940/investigation-of-l-leucine-in-reducing-the-moisture-induced-deterioration-of-spray-dried-salbutamol-sulfate-power-for-inhalation
#19
Liang Li, Sharon Shui Yee Leung, Thomas Gengenbach, Jiaqi Yu, Ge Fiona Gao, Patricia Tang, Qi Tony Zhou, Hak-Kim Chan
The aim of this study was to investigate the ability of L-leucine (LL) in preventing moisture-induced deterioration in the in vitro aerosolization performance of spray-dried (SD) salbutamol sulfate (SS). Increasing mass fraction of LL (5-80%) were co-spray dried with SS, and the physicochemical properties of the powders were characterized by laser diffraction, X-ray powder diffraction (XRD) and dynamic vapour sorption (DVS). Furthermore, the surface morphology and chemistry of fine particles was analyzed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS)...
July 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28686221/evaluation-of-cyanea-capillata-sting-management-protocols-using-ex-vivo-and-in-vitro-envenomation-models
#20
Thomas K Doyle, Jasmine L Headlam, Christie L Wilcox, Eoin MacLoughlin, Angel A Yanagihara
Lion's mane jellyfish (Cyanea capillata) stings cause severe pain and can lead to dangerous systemic effects, including Irukandji-like syndrome. As is the case for most cnidarian stings, recommended medical protocols in response to such stings lack rigorous scientific support. In this study, we sought to evaluate potential first aid care protocols using previously described envenomation models that allow for direct measurements of venom activity. We found that seawater rinsing, the most commonly recommended method of tentacle removal for this species, induced significant increases in venom delivery, while rinsing with vinegar or Sting No More(®) Spray did not...
July 7, 2017: Toxins
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