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https://www.readbyqxmd.com/read/28231649/optimal-timing-for-hemoglobin-concentration-determination-after-total-knee-arthroplasty-day-1-versus-day-2
#1
Mahdi Yacine Khalfaoui, Charles Godavitarne, Michael C P Wilkinson
Purpose: Postoperative hemoglobin (Hb) determination remains an essential parameter for quantifying blood loss following total knee replacement (TKR) surgery and guiding transfusion practice. In this study we aimed to ascertain the optimal timing for Hb determination postoperatively and assess its relationship to serum hematocrit (Hct). Materials and Methods: This was a retrospective cohort analysis of 61 consecutive patients undergoing preoperative, day 1 and day 2 Hb and Hct concentration determination following TKR surgery...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231638/comparison-of-the-shock-absorption-capacities-of-different-mouthguards
#2
Melina Simonetta Bochnig, Min-Jung Oh, Theresa Nagel, Fred Ziegler, Paul-Georg Jost-Brinkmann
BACKGROUND/AIMS: In this in vitro study the protective qualities of different mouthguard types were examined during small hard object collisions. The aim was to investigate inconclusive aspects of hard inserts, nylon nets and air spaces as reinforcements in the anterior region and the protection qualities of ethylene vinyl acetate (EVA). MATERIALS AND METHODS: Five different mouthguards with a labial thickness between 2 mm and 11 mm made of materials of varying stiffness were investigated...
February 23, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28231347/histomorphometric-results-after-postextraction-socket-healing-with-different-biomaterials-a-systematic-review-of-the-literature-and-meta-analysis
#3
Stefano Corbella, Silvio Taschieri, Luca Francetti, Roberto Weinstein, Massimo Del Fabbro
PURPOSE: The aim of this systematic review was to investigate which material is the most effective bone substitute for alveolar bone healing by evaluating histomorphometric outcomes after healing of postextraction sockets in humans. MATERIALS AND METHODS: A manual and electronic search (PubMed, EMBASE, Cochrane Library) was performed using a search string prepared ad hoc. Data were statistically analyzed by calculating weighted mean percentage of new bone formation (primary outcome) and weighted mean percentage of residual biomaterial, soft/connective tissue, and nonmineralized tissue (secondary outcomes) in the biopsies...
February 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28231163/gluten-free-bread-influence-of-sourdough-and-compressed-yeast-on-proofing-and-baking-properties
#4
Carola Cappa, Mara Lucisano, Andrea Raineri, Lorenzo Fongaro, Roberto Foschino, Manuela Mariotti
The use of sourdough is the oldest biotechnological process to leaven baked goods, and it represents a suitable technology to improve traditional bread texture, aroma, and shelf life. A limited number of studies concerning the use of sourdough in gluten-free (GF) breadmaking have been published in comparison to those on traditional bread. The aim of this study was to compare the properties of GF breads obtained by using a previously in-lab developed GF-sourdough (SD), compressed yeast (CY; Saccharomyces cerevisiae) or their mixture (SDCY) as leavening agents; more specifically, it aims to confirm the findings of a previous studies and to further improve (both in terms of recipe and process) the features of the resulting GF breads...
October 23, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230919/maxillary-ameloblastoma-factors-associated-with-risk-of-recurrence
#5
Rong Yang, Zheqi Liu, Canbang Peng, Wei Cao, Tong Ji
BACKGROUND: Maxillary ameloblastomas are rare and associated with an aggressive course because of the anatomic composition of the maxilla and adjacent structures. The risk factors associated with recurrence were analyzed in this retrospective study. METHODS: Cases of maxillary ameloblastoma reported in a tertiary hospital from 2005 to 2015 were analyzed to identify clinicopathological and radiological factors associated with recurrence using univariate and multivariate Cox regression analyses...
February 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28230872/the-load-bearing-ability-of-a-particle-raft-under-the-transverse-compression-of-a-slender-rod
#6
Pingcheng Zuo, Jianlin Liu, Shanpeng Li
Liquid marbles and particle rafts are liquid interfaces covered with tiny particles, which are accompanied with many exotic behaviors. This study seeks to extend our understanding on the load-bearing ability of a particle raft under the transverse compression of a slender rod. At first, the interface morphologies of the particle raft and water are captured and compared with each other. Then the load-distance curves of the particle raft and water surface are measured using a self-developed device. For the particle raft, the hydrophobicity of the rod almost does not affect the interface morphology and the supporting load...
February 23, 2017: Soft Matter
https://www.readbyqxmd.com/read/28230364/modeling-protein-conformational-transition-pathways-using-collective-motions-and-the-lasso-method
#7
Thomas W Hayes, Iain H Moal
Many proteins can adopt multiple distinct conformational states which often play different functional roles. Previous studies have shown that the underlying global dynamics through which these states are accessed are, at least in part, encoded by the protein's topology. In this work we present a method for generating transition pathways between states by perturbing the protein towards a target conformational state along thermally accessible collective motions calculated from the starting conformation. Specifically, the least absolute shrinkage and selection operator (LASSO) is used to identify the most parsimonious route along soft modes calculated using the anisotropic network model...
February 23, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28229499/advanced-materials-for-use-in-soft-self-healing-devices
#8
REVIEW
Tan-Phat Huynh, Prashant Sonar, Hossam Haick
Devices integrated with self-healing ability can benefit from long-term use as well as enhanced reliability, maintenance and durability. This progress report reviews the developments in the field of self-healing polymers/composites and wearable devices thereof. One part of the progress report presents and discusses several aspects of the self-healing materials chemistry (from non-covalent to reversible covalent-based mechanisms), as well as the required main approaches used for functionalizing the composites to enhance their electrical conductivity, magnetic, dielectric, electroactive and/or photoactive properties...
February 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28229386/levels-of-antioxidant-activity-and-fluoride-content-in-coffee-infusions-of-arabica-robusta-and-green-coffee-beans-in-according-to-their-brewing-methods
#9
J Wolska, Katarzyna Janda, K Jakubczyk, M Szymkowiak, D Chlubek, I Gutowska
Coffee is a rich source of dietary antioxidants, and this property links with the fact that coffee is one of the world's most popular beverages. Moreover, it is a source of macro- and microelements, including fluoride. The aim of this work was to determine antioxidant activity of coffee beverages and fluoride content depending on different coffee species and conditions of brewing. Three species of coffee, arabica, robusta and green coffee beans obtained from retail stores in Szczecin (Poland) were analyzed...
February 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28229358/postmastectomy-radiation-therapy-and-breast-reconstruction-with-autologous-tissue
#10
Yasunobu Terao, Koichiro Taniguchi, Miwako Fujii, So Moriyama
Immediate breast reconstruction is an important tool for patients to accept and overcome their breast cancer, as well as for cosmetic reasons. However, its use in patients who require postmastectomy radiation therapy (PMRT) is not yet clear. The purpose of this study was to analyze the effects of PMRT and reconstruction on each other. The time of initiation of PMRT, the prognosis, and the cosmetic results were investigated in patients who underwent immediate reconstruction using autologous tissue. In the case of delayed reconstruction using autologous tissue after PMRT, radiation damage of the chest skin, design of the flap, and cosmetic results were investigated...
February 22, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28229239/same-day-discharge-after-incision-and-drainage-of-soft-tissue-abscess-in-diaper-age-children-is-safe-and-effective
#11
Ian C Glenn, Nicholas E Bruns, Domenic Craner, Alexander T Gibbons, Danial Hayek, Neil L McNinch, Oliver S Soldes, Todd A Ponsky
PURPOSE: Many pediatric centers admit patients following incision and drainage (I&D) of soft-tissue abscesses. The purpose of this study is to assess the safety and efficacy of the same-day discharge following I&D. METHODS: Retrospective review was performed of children aged 3 months-4 years who underwent operative I&D of an abscess followed by same-day discharge. Patients receiving antibiotics within 2 weeks of presentation were excluded. Treatment failure was defined as readmission or repeat procedure related to the initial abscess...
February 22, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28229172/external-beam-radiation-therapy-combined-with-limb-sparing-surgery-in-elderly-patients-70%C3%A2-years-with-primary-soft-tissue-sarcomas-of-the-extremities-a%C3%A2-retrospective-analysis
#12
Claudia Andrä, Alexander Klein, Hans Roland Dürr, Josefine Rauch, Lars Hartwin Lindner, Thomas Knoesel, Martin Angele, Andrea Baur-Melnyk, Claus Belka, Falk Roeder
PURPOSE: To report our experience with EBRT combined with limb-sparing surgery in elderly patients (>70 years) with primary extremity soft tissue sarcomas (STS). METHODS: Retrospectively analyzed were 35 patients (m:f 18:17, median 78 years) who all presented in primary situation without nodal/distant metastases (Charlson score 0/1 in 18 patients; ≥2 in 17 patients). Median tumor size was 10 cm, mainly located in lower limb (83%). Stage at presentation (UICC7th) was Ib:3%, 2a:20%, 2b:20%, and 3:57%...
February 22, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28229061/central-myxoma-myxofibroma-of-the-jaws-a-clinico-epidemiologic-review
#13
Agbara Rowland, Fomete Benjamin, Obiadazie Athanasius-Chukwudi, Omeje Uchenna-Kevin, Samaila Modupeola-Omotara
INTRODUCTION: Myxomas are a group of benign rare tumors of connective-tissue origin that occur in both hard (central) and soft tissues of the body. The aim of this study is to highlight our experience in the management of central myxoma of the jaw, with emphasis on its clinic-epidemiologic features as seen in our environment. MATERIALS AND METHODS: All patients who were managed for central myxoma of the jaw at the Oral and Maxillofacial Surgery department of a regional University Teaching Hospital between September 1997 and October 2015 were retrospectively studied...
January 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28229059/comparison-of-fluoroplastic-causse-loop-piston-and-titanium-soft-clip-in-stapedotomy
#14
Mohammad Faramarzi, Nafiseh Gilanifar, Sareh Roosta
INTRODUCTION: Different types of prosthesis are available for stapes replacement. Because there has been no published report on the efficacy of the titanium soft-clip vs the fluoroplastic Causse loop Teflon piston, we compared short-term hearing results of both types of prosthesis in patients who underwent stapedotomy due to otosclerosis. MATERIALS AND METHODS: A total of 57 ears were included in the soft-clip group and 63 ears were included in the Teflon-piston group...
January 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28229056/experimental-visualization-of-labyrinthine-structure-with-optical-coherence-tomography
#15
Saleh Mohebbi, Marjan Mirsalehi, Lüder-Alexander Kahrs, Tobias Ortmaier, Thomas Lenarz, Omid Majdani
INTRODUCTION: Visualization of inner ear structures is a valuable strategy for researchers and clinicians working on hearing pathologies. Optical coherence tomography (OCT) is a high-resolution imaging technology which may be used for the visualization of tissues. In this experimental study we aimed to evaluate inner ear anatomy in well-prepared human labyrinthine bones. MATERIALS AND METHODS: Three fresh human explanted temporal bones were trimmed, chemically decalcified with ethylenediaminetetraacetic acid (EDTA), and mechanically drilled under visual control using OCT in order to reveal the remaining bone shell...
January 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28228905/calciphylaxis-on-bone-scan-correlation-between-molecular-and-cross-sectional-findings
#16
Malak Itani, Manuela Matesan, Sanaz Behnia, Saeed Elojeimy
Calciphylaxis is a rare devastating medical condition commonly associated with end-stage renal disease and characterized by extensive microvascular calcifications. We describe a case of calciphylaxis presenting on Tc-99m MDP bone scan imaging with asymmetric radiotracer uptake within the lower extremities corresponding to extensive soft tissue calcifications on Computed tomography. Familiarity with the classic clinical presentation and imaging features of this rare entity may help its early identification and treatment...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28228898/disseminated-coccidioidomycosis-with-multifocal-musculoskeletal-disease-involvement
#17
Michael F McConnell, Ann Shi, Todd M Lasco, Luke Yoon
We report a rare case of disseminated coccidioidomycosis with multifocal musculoskeletal involvement. The patient presented to the emergency department with left shoulder pain and swelling. Magnetic resonance imaging of the left shoulder revealed enhancing soft tissue masses, bony lesions, and fluid collections in and around the glenohumeral joint with involvement of the proximal humerus, glenoid, and rotator cuff musculature. Multiple additional areas of involvement were subsequently discovered. Fungal cultures confirmed coccidioidomycosis infection at all surgical sites with superimposed polymicrobial bacterial infection in the left shoulder...
March 2017: Radiology case reports
https://www.readbyqxmd.com/read/28228530/optical-detection-of-nanometric-thermal-fluctuations-to-measure-the-stiffness-of-rigid-superparamagnetic-microrods
#18
Fabien Gerbal, Yuan Wang
The rigidity of numerous biological filaments and crafted microrods has been conveniently deduced from the analysis of their thermal fluctuations. However, the difficulty of measuring nanometric displacements with an optical microscope has so far limited such studies to sufficiently flexible rods, of which the persistence length ([Formula: see text]) rarely exceeds 1 m at room temperature. Here, we demonstrate the possibility to probe 10-fold stiffer rods by a combination of superresolutive optical methods and a statistical analysis of the data based on a recent theoretical model that predicts the amplitude of the fluctuations at any location of the rod [Benetatos P, Frey E (2003) Phys Rev E Stat Nonlin Soft Matter Phys 67(5):051108]...
February 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28228522/entropy-driven-segregation-of-polymer-grafted-nanoparticles-under-confinement
#19
Ren Zhang, Bongjoon Lee, Christopher M Stafford, Jack F Douglas, Andrey V Dobrynin, Michael R Bockstaller, Alamgir Karim
The modification of nanoparticles with polymer ligands has emerged as a versatile approach to control the interactions and organization of nanoparticles in polymer nanocomposite materials. Besides their technological significance, polymer-grafted nanoparticle (PGNP) dispersions have attracted interest as model systems to understand the role of entropy as a driving force for microstructure formation. For instance, densely and sparsely grafted nanoparticles show distinct dispersion and assembly behaviors within polymer matrices due to the entropy variation associated with conformational changes in brush and matrix chains...
February 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28228348/carbon-dioxide-in-carbonated-beverages-induces-ghrelin-release-and-increased-food-consumption-in-male-rats-implications-on-the-onset-of-obesity
#20
Dureen Samandar Eweis, Fida Abed, Johnny Stiban
BACKGROUND: The dangerous health risks associated with obesity makes it a very serious public health issue. Numerous studies verified a correlation between the increase in obesity and the parallel increase in soft drink consumption among world populations. The effects of one main component in soft drinks namely the carbon dioxide gas has not been studied thoroughly in any previous research. METHODS: Male rats were subjected to different categories of drinks and evaluated for over a year...
February 19, 2017: Obesity Research & Clinical Practice
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