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https://www.readbyqxmd.com/read/28523994/potential-biomolecules-and-current-treatment-technologies-for-diabetic-foot-ulcer-an-overview
#1
Zenith Khashim, Shila Samuel, Nallusamy Duraisamy, Kathiravan Krishnan
BACKGROUND: Diabetic foot ulceration remains a major challenge is one of the most expensive and a leading cause of major and minor among patients with a diabetic foot ulcer. Hence the purpose of this review emphases on potential molecular markers involved in diabetic ulcer physiology, the efficacy of different types of dressing materials, therapy and newer therapeutic approach like nanoparticles for the of diabetic foot ulcer. METHODS: We conducted a systematic literature reviews search by using Pubmed and other web search...
May 18, 2017: Current Diabetes Reviews
https://www.readbyqxmd.com/read/28505434/photolysis-of-particulate-nitrate-as-a-source-of-hono-and-nox
#2
Chunxiang Ye, Ning Zhang, Honglian Gao, Xianliang Zhou
Photolysis of nitric acid on the surface has been found recently to be greatly enhanced from that in the gas phase. Yet, photolysis of particulate nitrate (pNO3) associated with atmospheric aerosols is still relatively unknown. Here, aerosol filter samples were collected both near the ground surface and throughout the troposphere on board NSF/NACR C-130 aircraft. The photolysis rate constants of pNO3 were determined from these samples by directly monitoring the production rates of nitrous acid (HONO) and nitrogen dioxide (NO2) under UV light (> 290 nm) irradiation...
May 15, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28495540/results-of-the-french-multicentric-study-of-anaconda-tm-fenestrated-endografts-in-the-treatment-of-complex-aortic-pathologies-efefa-registry
#3
Dominique Midy, Jean-Pierre Becquemin, Claude Mialhe, Nicolas Frisch, Robert Martinez, Caroline Caradu
BACKGROUND: Most of the experience on fenestrated endovascular aneurysm repair (F-EVAR) involves the custom-made Zenith® endograft (Cook). The fenestrated Anaconda® endograft (Vascutek) was introduced with the potential advantages of complete repositioning and lack of stent material on the main aortic body for more versatility. However, few data are available. Our objective was to assess its mid-term results in the treatment of complex aortic aneurysms. METHODS: Consecutive patients treated with the custom-made Fenestrated Anaconda® Endograft in France and the Principality of Monaco, from December 2010 to October 2015, were included...
May 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28485980/peat-bogs-document-decades-of-declining-atmospheric-contamination-by-trace-metals-in-the-athabasca-bituminous-sands-region
#4
William Shotyk, Peter G Appleby, Beatriz Bicalho, Lauren J Davies, Duane Froese, Iain Grant-Weaver, Gabriel Magnan, Gillian Mullan-Boudreau, Tommy Noernberg, Rick Pelletier, Robert Shannon, Simon van Bellen, Claudio Zaccone
Peat cores were collected from five bogs in the vicinity of open pit mines and upgraders of the Athabasca Bituminous Sands, and from a control site (Utikuma) which is 264 km SW. Frozen cores were sectioned into 1 cm slices, and trace metals determined in the ultraclean SWAMP lab using ICP-QMS. The uppermost sections of the cores were age-dated with (210)Pb using ultralow background gamma spectrometry, and selected plant macrofossils dated using (14)C. At each site, trace metal concentrations as well as enrichment factors (calculated relative to the corresponding M/Th ratio of the Upper Continental Crust) reveal maximum values 10 to 40 cm below the surface which shows that the zenith of atmospheric contamination occurred in the past...
May 9, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28463338/propagation-of-partially-coherent-laguerre-gaussian-beams-through-inhomogeneous-turbulent-atmosphere
#5
Ting Yang, Yonggen Xu, Huanhuan Tian, Dong Die, Quan Du, Biling Zhang, Youquan Dan
Analytical formulas for the root-mean-square (rms) spatial width, the rms angular width, and the M<sup>2</sup>-factor of partially coherent standard Laguerre Gaussian beams (PC-SLGBs) and partially coherent elegant Laguerre Gaussian beams (PC-ELGBs) in inhomogeneous turbulent atmosphere have been derived. The propagation properties of PC-SLGBs and PC-ELGBs in inhomogeneous atmospheric turbulence are studied numerically and comparatively. It can be found that the propagation of laser beams in inhomogeneous turbulence is different from that in homogeneous turbulence...
May 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/28453722/accuracy-of-mdct-and-cbct-in-three-dimensional-evaluation-of-the-oropharynx-morphology
#6
Hui Chen, Maureen van Eijnatten, Ghizlane Aarab, Tim Forouzanfar, Jan de Lange, Paul van der Stelt, Frank Lobbezoo, Jan Wolff
Objective: To assess the accuracy of five different computed tomography (CT) scanners for the evaluation of the oropharynx morphology. Methods: An existing cone-beam computed tomography (CBCT) data set was used to fabricate an anthropomorphic phantom of the upper airway volume that extended from the uvula to the epiglottis (oropharynx) with known dimensions (gold standard). This phantom was scanned using two multi-detector row computed tomography (MDCT) scanners (GE Discovery CT750 HD, Siemens Somatom Sensation) and three CBCT scanners (NewTom 5G, 3D Accuitomo 170, Vatech PaX Zenith 3D)...
April 27, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28442660/anatomic-feasibility-of-next-generation-stent-grafts-for-the-management-of-type-a-aortic-dissection-in-japanese-patients
#7
Naoki Fujimura, Shinji Kawaguchi, Hideaki Obara, Akihiro Yoshitake, Masanori Inoue, Satoshi Otsubo, Yuko Kitagawa, Hideyuki Shimizu
BACKGROUND: The aims of the present study were to analyze the anatomical characteristics of type A aortic dissections (TAAD) in Japanese patients and evaluate the feasibility of 3 next-generation stent grafts dedicated to ascending/arch aortic lesions.Methods and Results:We analyzed 172 consecutive patients surgically treated for TAAD at 2 institutions between 2007 and 2015. Computed tomography (CT) images and operative records were used to identify the location of entry tear (ET)...
April 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28413058/erythromelalgia-identification-of-a-corticosteroid-responsive-subset
#8
Gabriel L Pagani-Estévez, Paola Sandroni, Mark D Davis, James C Watson
BACKGROUND: Corticosteroids (CS) may benefit certain patients with erythromelalgia. OBJECTIVES: Our objective was to determine clinical predictors of corticosteroid-responsive erythromelalgia. METHODS: Patients with erythromelalgia who received CS were identified and stratified into corticosteroid nonresponders (NRs), partial corticosteroid responders (PSRs), complete corticosteroid responders (CSRs), and steroid responders (SRs = PSRs + CSRs)...
March 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28392056/open-conversion-after-endovascular-abdominal-aneurysm-repair-an-8-year-single-centre-experience
#9
I Ben Abdallah, S El Batti, M Abou-Rjeili, J-N Fabiani, P Julia, J-M Alsac
OBJECTIVE: To report experience with open conversion (OC) after previous failed EVAR and to compare outcomes of patients undergoing elective OC with those operated on in an urgent setting. METHODS: Patients undergoing OC after EVAR between August 2008 and September 2016 were included in this retrospective and observational single institution study. Indications, demographic, anatomical, intra-operative and post-operative data were collected prospectively. Primary endpoints were 30 day and in hospital mortality...
April 5, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28384979/correlation-between-visible-length-of-the-iris-and-the-length-of-the-maxillary-central-incisor-using-digital-image-analysis-a-pilot-study
#10
Rohini, Hemalatha, Gopi Naveen Chander, Kuttae Viswanathan Anitha
INTRODUCTION: Complete denture therapy is one such modality where science and art goes hand in hand. Selection of artificial teeth for completely edentulous patients is not easy in the absence of pre extraction records, because till date concrete guidelines do not exist. AIM: The purpose of this study was to determine if a correlation existed between the visible length of the iris and the length of the maxillary central incisor to potentially provide a guide for teeth selection...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28375229/propagation-characteristics-of-partially-coherent-flat-topped-beams-propagating-through-inhomogeneous-atmospheric-turbulence
#11
Yonggen Xu, Huanhuan Tian, Ting Yang, Biling Zhang, Youquan Dan
M<sup>2</sup>-factor and root-mean-square (rms) angular width of partially coherent flat-topped (PCFT) beams propagating through inhomogeneous atmospheric turbulence are studied based on the extended Huygens-Fresnel principle and the Wigner distribution function (WDF). It is shown that the effect of turbulence on the PCFT beams can be neglected as the vertical height increases, which is different from the homogeneous turbulence. Analytical formulae of the M<sup>2</sup>-factor and rms angular width of PCFT beams have been given...
April 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28374492/in-vitro-laser-fenestration-of-aortic-stent-grafts-a-qualitative-analysis-under-scanning-electron-microscope
#12
Jing Lin, Naval Udgiri, Robert Guidoin, Jean Panneton, Xiaoning Guan, Maxime Guillemette, Lu Wang, Jia Du, Dajie Zhu, Mark Nutley, Ze Zhang
In situ fenestration of stent-grafts allows patients with life threatening aortic pathologies to be amenable to emergent "off the shelf indications for use" percutaneous treatments as a bail out technique. Three types of aortic stent-grafts were subjected to laser fenestration in a physiological saline solution followed by balloon angioplasty using 8, 10 or 12 mm in diameter noncompliant balloons. The morphology and the size of fenestrations were observed under optical and scanning electron microscopy. The damage to the fabrics was analyzed and quantified...
November 2016: Artificial Organs
https://www.readbyqxmd.com/read/28374035/critical-appraisal-of-data-used-to-infer-record-uvi-in-the-tropical-andes
#13
R L McKenzie, J B Liley, S Madronich
When the data sets that suggested record high UVI values at Mt Licancabur, and Laguna Blanca, Bolivia are reviewed in full, we find that the reported peak values are incorrect, probably due to instrumental problems. These affect the UVB, UVA and PAR channels at different times and different solar zenith angles, with distinct diurnal patterns in each case. The outliers are consistent with errors that would result from build-up of ice or snow on the surface of the entrance dome, combined with incomplete baffling of light within the integrating spheres that form the entrance optic of these instruments, but we cannot unequivocally attribute them to this cause...
May 17, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28366742/heuristic-rules-underlying-dragonfly-prey-selection-and-interception
#14
Huai-Ti Lin, Anthony Leonardo
Animals use rules to initiate behaviors. Such rules are often described as triggers that determine when behavior begins. However, although less explored, these selection rules are also an opportunity to establish sensorimotor constraints that influence how the behavior ends. These constraints may be particularly significant in influencing success in prey capture. Here we explore this in dragonfly prey interception. We found that in the moments leading up to takeoff, perched dragonflies employ a series of sensorimotor rules that determine the time of takeoff and increase the probability of successful capture...
April 24, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28366305/off-the-shelf-multibranched-endograft-for-urgent-endovascular-repair-of-thoracoabdominal-aortic-aneurysms
#15
Enrico Gallitto, Mauro Gargiulo, Antonio Freyrie, Rodolfo Pini, Chiara Mascoli, Stefano Ancetti, Gianluca Faggioli, Andrea Stella
OBJECTIVE: The aim of this paper was to report early and midterm results of endovascular repair of urgent thoracoabdominal aortic aneurysms (TAAAs) by the off-the-shelf multibranched Zenith t-Branch endograft (Cook Medical, Bloomington, Ind). METHODS: Between January 2014 and April 2016, all patients with urgent TAAAs (asymptomatic with diameter >8 cm, symptomatic, or ruptured TAAAs) and aortoiliac anatomic feasibility underwent endovascular repair by t-Branch and were prospectively enrolled...
March 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28365888/cone-beam-computed-tomography-for-dental-and-maxillofacial-imaging-technique-improvement-and-low-dose-protocols
#16
Beatrice Feragalli, Osvaldo Rampado, Cecilia Abate, Monica Macrì, Felice Festa, Francesco Stromei, Sergio Caputi, Giuseppe Guglielmi
OBJECTIVE: The aim of this study was to evaluate images quality and radiation doses of Cone Beam Computed Tomography (CBCT) for dental and maxillofacial imaging testing five different acquisition protocols. METHODS: Dose measurements of different acquisition protocols were calculated for Pax Zenith three-dimensional (3D) Cone Beam (Vatech, Korea) and for conventional orthopantomography (OPT) and cephalometric skull imaging Ortophos (Sirona Dental Systems, Bernsheim, Germany)...
April 1, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28346200/compatibility-and-stability-of-rolapitant-injectable-emulsion-admixed-with-intravenous-palonosetron-hydrochloride
#17
George Wu, Stanley Yeung, Frank Chen
Neurokinin-1 receptor antagonist, 5-hydroxytryptamine-3 RA, and dexamethasone combination therapy is standard of care for the prevention of chemotherapy-induced nausea and vomiting. Herein we describe the physical and chemical stability of rolapitant injectable emulsion 166.5 mg in 92.5 mL (185 mg hydrochloride salt) admixed with palonosetron injection 0.25 mg in 5 mL (0.28 mg hydrochloride salt). Admixtures were prepared and stored in two types of container closures (110-mL Crystal Zenith plastic and glass bottles) and four types of intravenous administration sets (or intravenous tubing sets)...
January 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28346199/compatibility-and-stability-of-rolapitant-injectable-emulsion-admixed-with-dexamethasone-sodium-phosphate
#18
George Wu, Stanley Yeung, Frank Chen
Neurokinin-1 receptor antagonist, 5-hydroxytryptamine-3 receptor antagonist, and dexamethasone combination therapy is the standard of care for the prevention of chemotherapy-induced nausea and vomiting. Herein, we describe the physical and chemical stability of an injectable emulsion of the Neurokinin-1 receptor antagonist rolapitant 185 mg in 92.5 mL (free base, 166.5 mg in 92.5 mL) admixed with either 2.5 mL of dexamethasone sodium phosphate (10 mg) or 5 mL of dexamethasone sodium phosphate (20 mg). Admixtures were prepared and stored in two types of container closures (glass and Crystal Zenith plastic bottles) and four types of intravenous administration tubing sets (or intravenous tubing sets)...
January 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28341512/change-in-aortic-neck-diameter-after-endovascular-aortic-aneurysm-repair
#19
Marcus R Kret, Kenneth Tran, Jason T Lee
INTRODUCTION: and Objectives: Implications of aortic neck dilatation following EVAR are unclear. Previous studies are limited to comparisons of individual, early-generation devices. We compared aortic neck dilatation among contemporary stent-grafts. METHODS: We reviewed pre- and post-op CTA for EVARs performed from 2008-2014. Images were analyzed using 3-D centerline reconstructions. Aortic neck diameter was measured in orthogonal planes at and 10 mm below the lowest renal artery...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28323482/constraints-on-the-early-terrestrial-surface-uv-environment-relevant-to-prebiotic-chemistry
#20
Sukrit Ranjan, Dimitar D Sasselov
The UV environment is a key boundary condition to abiogenesis. However, considerable uncertainty exists as to planetary conditions and hence surface UV at abiogenesis. Here, we present two-stream multilayer clear-sky calculations of the UV surface radiance on Earth at 3.9 Ga to constrain the UV surface fluence as a function of albedo, solar zenith angle (SZA), and atmospheric composition. Variation in albedo and latitude (through SZA) can affect maximum photoreaction rates by a factor of >10.4; for the same atmosphere, photoreactions can proceed an order of magnitude faster at the equator of a snowball Earth than at the poles of a warmer world...
March 2017: Astrobiology
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