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https://www.readbyqxmd.com/read/28546833/energy-down-converting-organic-fluorophore-functionalized-mesoporous-silica-hybrids-for-monolith-coated-light-emitting-diodes
#1
Markus Börgardts, Thomas J J Müller
The covalent attachment of organic fluorophores in mesoporous silica matrices for usage as energy down converting phosphors without employing inorganic transition or rare earth metals is reported in this article. Triethoxysilylpropyl-substituted derivatives of the blue emitting perylene, green emitting benzofurazane, and red emitting Nile red were synthesized and applied in the synthesis of mesoporous hybrid materials by postsynthetic grafting to commercially available MCM-41. These individually dye-functionalized hybrid materials are mixed in variable ratios to furnish a powder capable of emitting white light with CIE chromaticity coordinates of x = 0...
2017: Beilstein Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28544152/a-risk-adapted-approach-to-treating-respiratory-syncytial-virus-and-human-parainfluenza-virus-in-allogeneic-stem-cell-transplantation-recipients-with-oral-ribavirin-therapy-a-pilot-study
#2
José Luis Piñana, Juan Carlos Hernández-Boluda, Marisa Calabuig, Isabel Ballester, Manuela Marín, Silvia Madrid, Anabel Teruel, María-José Terol, David Navarro, Carlos Solano
Here we report the applicability of a protocol based on clinical conditions and risk factors (RFs) for managing 35 allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients who developed a total of 52 episodes of respiratory viral infections (RVIs) caused by respiratory syncytial virus (RSV; n=19), human parainfluenza virus (HPIV; n=29), or both (n=4) over a 2-year study period. Risk categories were classified as high risk (cat-1) when the immunodeficiency scoring index) was ≥ 3 and/or ≥ 3 RFs and/or ≥ 1 co-infective virus(es) were present; the remaining cases were classified as low risk (cat-0)...
May 19, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28543543/cardiac-implantable-electronic-device-haematomas-risk-factors-and-effect-of-prophylactic-pressure-bandaging
#3
Youlin Koh, Nicholas E Bingham, Natalie Law, Dustin Le, Justin A Mariani
BACKGROUND: Cardiac implantable electronic device (CIED) haematomas are associated with many adverse outcomes. We examined the incidence and risk factors associated with haematoma formation post CIED implantation, and explored the preventative effect of prophylactic pressure bandaging (PPB) in a large tertiary centre. METHODS: 1091 devices were implanted during October 2011 to December 2014. Clinically significant haematomas (CSH) were those that necessitated prolonged admission, including those due to reoperation, and clinically suspicious haematomas were swellings noted by medical/nursing staff...
May 23, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28543401/oral-anticoagulation-management-in-patients-with-atrial-fibrillation-undergoing-cardiac-implantable-electronic-device-implantation
#4
Eric Black-Maier, Sunghee Kim, Benjamin A Steinberg, Gregg C Fonarow, James V Freeman, Peter R Kowey, Jack Ansell, Bernard J Gersh, Kenneth W Mahaffey, Gerald Naccarelli, Elaine M Hylek, Alan S Go, Eric D Peterson, Jonathan P Piccini
BACKGROUND: Oral anticoagulation (OAC) therapy is associated with increased periprocedural risks after cardiac implantable electronic device (CIED) implantation. Patterns of anticoagulation management involving non-vitamin K antagonist oral anticoagulants (NOACs) have not been characterized. HYPOTHESIS: Anticoagulation strategies and outcomes differ by anticoagulant type in patients undergoing CIED implantation. METHODS: Using the nationwide Outcomes Registry for Better Informed Treatment of Atrial Fibrillation, we assessed how atrial fibrillation (AF) patients undergoing CIED implantation were cared for and their subsequent outcomes...
May 19, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28541928/temperature-probing-and-emission-color-tuning-by-morphology-and-size-control-of-upconverting-%C3%AE-nayb0-67gd0-30f4-tm0-015-ho0-015-nanoparticles
#5
Emille M Rodrigues, Diogo A Gálico, Italo O Mazali, Fernando A Sigoli
The chemical composition, shape and size of upconverting nanoparticles are known to have a great influence on their spectroscopic properties, such as the emission color and the emission intensity variation as a function of temperature. This work shows the color tuning and the thermal sensitivity of NaYb0.67Gd0.30F4:Tm0.015:Ho0.015 nanoparticles synthesized by two different approaches of the same synthetic method showing the influence of size and morphology, 250 nm hexagonal-plated and 30 nm spheroidal nanoparticles, on the visible upconversion color under NIR irradiation...
May 25, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28536106/alpha-2-subunit-containing-gabaa-receptor-subtypes-are-up-regulated-and-contribute-to-alcohol-induced-functional-plasticity-in-rat-hippocampus
#6
A Kerstin Lindemeyer, Yi Shen, Ferin Yazdani, Xuesi M Shao, Igor Spigelman, Daryl L Davies, Richard W Olsen, Jing Liang
Alcohol(EtOH)intoxication causes changes in rodent brain GABAA receptor (GABAAR) subunit composition and function, playing a crucial role in EtOH withdrawal symptoms and dependence. Building evidence indicates withdrawal from acute EtOH and chronic intermittent EtOH (CIE) results in decreased EtOH-enhanced GABAAR δ subunit-containing extrasynaptic and EtOH-insensitive α1βγ2 subtype synaptic GABAARs, but increased synaptic α4βγ2 subtype, and increased EtOH sensitivity of GABAAR miniature postsynaptic currents (mIPSCs) correlated with EtOH dependence...
May 23, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28531220/highly-conserved-type-1-pili-promote-enterotoxigenic-e-coli-pathogen-host-interactions
#7
Alaullah Sheikh, Rasheduzzaman Rashu, Yasmin Ara Begum, F Matthew Kuhlman, Matthew A Ciorba, Scott J Hultgren, Firdausi Qadri, James M Fleckenstein
Enterotoxigenic Escherichia coli (ETEC), defined by their elaboration of heat-labile (LT) and/or heat-stable (ST) enterotoxins, are a common cause of diarrheal illness in developing countries. Efficient delivery of these toxins requires ETEC to engage target host enterocytes. This engagement is accomplished using a variety of pathovar-specific and conserved E. coli adhesin molecules as well as plasmid encoded colonization factors. Some of these adhesins undergo significant transcriptional modulation as ETEC encounter intestinal epithelia, perhaps suggesting that they cooperatively facilitate interaction with the host...
May 22, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28527549/efficacy-of-intravenous-acetaminophen-in-periimplantation-pain-of-cardiac-electronic-devices-a-randomized-double-blinded-study
#8
Reza Mollazadeh, Mohammad Reza Eftekhari, Masoud Eslami
PURPOSE: Although intravenous acetaminophen has been administered to reduce postoperative pain, it has not been used during cardiac implantable electronic devices (CIEDs) implantation. DESIGN: This was a randomized double-blinded interventional study. METHODS: Thirty-two patients who were referred for new CIED implantation during July 2012 until April 2013 randomly received placebo or 1 g of intravenous acetaminophen. All patients were treated with local anesthesia...
June 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/28526444/the-development-of-a-novel-shade-selection-program-for-fixed-shade-translucent-dental-materials
#9
Melody N Carney, William M Johnston
OBJECTIVES: The objective of this study was to develop a shade selection program that predicts the shade choice with the smallest CIEDE2000 color difference for dental composite resin restorations when given a backing and target shade. By utilizing previously generated regression models, a database of spectral reflectance information, and principles of Kubelka-Munk layering, a highly accurate shade selection program was designed. METHODS: Using SAS 9.3 Statistical Analysis Software, a shade selection program was developed that incorporated Kubelka-Munk layering data of Herculite Ultra and Estelite Omega composite resins from a characterized database of absorption and scattering information...
May 16, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28526307/risk-factors-of-cardiac-device-infection-glove-contamination-during-device-procedures
#10
Isabella Kozon, Sam Riahi, Søren Lundbye-Christensen, Anna Margrethe Thøgersen, Tove Ejlertsen, Dorthe Aaen, Kirsten I Paulsen, Søren Hjortshøj
BACKGROUND: Infections in cardiac implantable electronic devices (CIEDs) constitute a serious complication. We sought to identify contamination of gloves before handling the device in primary and replacement CIED procedures. METHODS: Two groups of 30 patients underwent primary CIED implantation or replacement. Before the device entered the surgical field, surgeon and assistant imprinted their outer gloves on aerobe and anaerobe agar plates, and a wound swab was performed...
May 16, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28521596/overcoming-the-current-issues-surrounding-device-leads-reducing-the-complications-during-extraction
#11
Maria Grazia Bongiorni, Luca Segreti, Andrea Di Cori, Giulio Zucchelli, Luca Paperini, Stefano Viani, Ezio Soldati
The implantation rate of of Cardiac implantable Elecrtonical Devices has consistently increased in the last 20 years, so as related complication rates. According, devices infections and malfunctions required the development of appropriate strategies. The most relevant issue is the removal of pacing and ICD leads, which, few months after implantation, tend to develop intravascular fibrosis, often making extraction a challenging and risky procedure. Areas Covered: TLE scenario is constantly evolving. Transvenous lead extraction (TLE) is a key procedure in lead management strategies...
May 18, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28512364/-radiographic-implications-of-procedures-involving-cardiac-implantable-electronic-devices-cieds-selected-aspects
#12
Roman Steckiewicz, Dariusz Artur Kosior, Elżbieta Barbara Świętoń, Marek Rosiak, Bartosz Lange, Przemysław Stolarz
BACKGROUND: Some cardiac implantable electronic device (CIED) implantation procedures require the use of X-rays, which is reflected by such parameters as total fluoroscopy time (TFT) and dose-area product (DAP - defined as the absorbed dose multiplied by the area irradiated). MATERIAL AND METHODS: This retrospective study evaluated 522 CIED implantation (424 de novo and 98 device upgrade and new lead placement) procedures in 176 women and 346 men (mean age 75±11 years) over the period 2012-2015...
May 16, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28507713/white-light-emission-from-discrete-heterometallic-lanthanide-directed-self-assembled-complexes-in-solution
#13
Oxana Kotova, Steve Comby, Christophe Lincheneau, Thorfinnur Gunnlaugsson
White-light-emitting materials have attracted significant interest in recent years due to their potential applications in solid-state lighting and flat-panel displays. Design of such materials is challenging and often relies on the use of multiple fluorophores despite the fact that single component systems yield materials with enhanced stability and reproducibility. Herein, we have developed a white-light-emitting system based on the formation of discrete lanthanide-based self-assembled complexes using a newly-designed ligand...
May 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28504577/lactobacillus-fermentum-im12-attenuates-inflammation-in-mice-by-inhibiting-nf-%C3%AE%C2%BAb-stat3-signalling-pathway
#14
S-M Lim, H M Jang, S-E Jang, M J Han, D-H Kim
In the present study, we isolated Lactobacillus fermentum IM12 from human gut microbiota, which strongly inhibited interleukin (IL)-6 expression and STAT3 activation in lipopolysaccharide (LPS)-stimulated murine peritoneal macrophages, and examined its anti-inflammatory effect in mice with carrageenan-induced hind-paw oedema (CIE) or 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis (TIC). Oral administration of IM12 (0.2×10(9), 1×10(9) or 5×10(9) cfu/mouse, once a day for 3 days) in mice with CIE significantly suppressed the increase of oedema volume and thickness, as well as myeloperoxidase activity and IL-6, IL-17, NO, and prostaglandin E2 levels in the carrageenan-stimulated paw...
May 15, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28503477/color-stability-of-bulk-fill-and-incremental-fill-resin-based-composites-polished-with-aluminum-oxide-impregnated-disks
#15
Uzay Koc-Vural, Ismail Baltacioglu, Pinar Altinci
OBJECTIVES: This study aimed to evaluate the color stability of bulk-fill and nanohybrid resin-based composites polished with 3 different, multistep, aluminum-oxide impregnated finishing and polishing disks. MATERIALS AND METHODS: Disk-shaped specimens (8 mm in diameter and 4 mm in thickness) were light-cured between two glass slabs using one nanohybid bulk-fill (Tetric EvoCeram, Ivoclar Vivadent), one micro-hybrid bulk-fill (Quixfil, Dentsply), and two nanohybrid incremental-fill (Filtek Ultimate, 3M ESPE; Herculite XRV Ultra, Kerr) resin-based composites, and aged by thermocycling (between 5 - 55℃, 3,000 cycles)...
May 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28500570/narrow-band-imaging-can-increase-the-visibility-of-fibrin-caps-after-bleeding-of-esophageal-varices-a-case-with-extensive-esophageal-candidiasis
#16
Yoshihiro Furuichi, Yoshitaka Kasai, Hirohito Takeuchi, Yuu Yoshimasu, Takashi Kawai, Katsutoshi Sugimoto, Yoshiyuki Kobayashi, Ikuo Nakamura, Takao Itoi
A 58-year-old man with hepatitis B cirrhosis noticed black stools and underwent an endoscopy at a community hospital. The presence of esophageal varices (EVs) was confirmed, but the bleeding point was not found. He was referred to our institution and underwent a second endoscopy. Extensive white patches of esophageal candidiasis were visible on endoscopy by white-light imaging (WLI), but it was difficult to find the fibrin cap of the EVs. This was easier under narrow-band imaging (NBI), however, as the color turned red from absorption by hemoglobin adhered to it...
May 12, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28496930/percutaneous-vacuum-assisted-thrombectomy-device-used-for-removal-of-large-vegetations-on-infected-pacemaker-and-defibrillator-leads-as-an-adjunct-to-lead-extraction
#17
Raymond H M Schaerf, Sasan Najibi, John Conrad
This case series reports our early experience with a minimally invasive percutaneous method of safely removing large vegetations during lead extraction in septic cardiac implantable electronic devices (CIED). Debate exists concerning the management of vegetations involving these devices. Lead extraction is mandated for infections, but vegetations may embolize, causing complications. Surgical debridement is recommended; alternatives include cardiopulmonary bypass, minimally invasive thoracotomy, or transatrial approaches...
October 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/28496929/management-of-patients-with-atrial-fibrillation-focus-on-treatment-options
#18
REVIEW
Pawel Matusik, Jacek Lelakowski, Barbara Malecka, Jacek Bednarek, Remigiusz Noworolski
Atrial fibrillation (AF) is leading cardiac arrhythmia with important clinical implications. Its diagnosis is usually made on the basis on 12-lead ECG or 24-hour Holter monitoring. More and more clinical evidence supports diagnostic use of cardiac event recorders and cardiovascular implantable electronic devices (CIED). Treatment options in patients with atrial fibrillation are extensive and are based on chosen rhythm and/or rate control strategy. The use and selected contraindications to AF related pharmacotherapy, including anticoagulants are shown...
October 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/28492620/novel-red-phosphors-kbaeu-xo4-3-x-mo-w-show-high-color-purity-and-high-thermostability-from-a-disordered-chained-structure
#19
G Q Wang, X H Gong, Y J Chen, J H Huang, Y F Lin, Z D Luo, Y D Huang
Two novel red phosphors KBaEu(XO4)3 (X = Mo, W) have been synthesized by high-temperature solid-state reactions and the crystal structures were determined for the first time. Single-crystal X-ray diffraction data reveal that their space groups are C2/c. The crystalline structure is constituted of K/BaO8 distorted square antiprisms and distorted EuO8 polyhedra which form chains lying along the c-axis and two kinds of distorted XO4 tetrahedra. This high disorder of K/Ba which might lower the crystal field symmetry around Eu(3+) results in the high purity of red emission around 615 nm originating from (5)D0 → (7)F2 transition under near-ultraviolet (NUV) excitation...
May 11, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28492569/-electromagnetic-interference-in-the-current-era-of-cardiac-implantable-electronic-devices-designed-for-magnetic-resonance-environment
#20
Valentina Ribatti, Luca Santini, Giovanni B Forleo, Domenico Della Rocca, Germana Panattoni, Marta Scali, Valentina Schirripa, Nicola Danisi, Fabrizio Ammirati, Massimo Santini
In the last decades we are observing a continuous increase in the number of patients wearing cardiac implantable electronic devices (CIEDs). At the same time, we face daily with a domestic and public environment featured more and more by the presence and the utilization of new emitters and finally, more medical procedures are based on electromagnetic fields as well. Therefore, the topic of the interaction of devices with electromagnetic interference (EMI) is increasingly a real and actual problem.In the medical environment most attention is paid to magnetic resonance, nevertheless the risk of interaction is present also with ionizing radiation, electrical nerve stimulation and electrosurgery...
April 2017: Giornale Italiano di Cardiologia
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