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https://www.readbyqxmd.com/read/29775100/phytoremediation-of-btex-and-naphthalene-from-produced-water-spill-sites-using-poaceae
#1
Amanda Rose Shores, Brittany Hethcock, Melinda Laituri
Surface spills of water produced from hydraulic fracturing can expose soil and groundwater to organics such as BTEX and naphthalene (BTEX&N) as well as high concentrations of salt. As an alternative to soil excavation, we evaluated the effectiveness of BTEX&N soil remediation using 2 grasses present in Colorado. Perennial ryegrass and foxtail barley were grown separately in pots in the greenhouse and exposed to salt or a synthesized produced-water slurry containing relevant levels of salt and BTEX&N...
July 3, 2018: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29765586/design-of-a-clinical-decision-support-system-for-fracture-prediction-using-imbalanced-dataset
#2
Yung-Fu Chen, Chih-Sheng Lin, Kuo-An Wang, La Ode Abdul Rahman, Dah-Jye Lee, Wei-Sheng Chung, Hsuan-Hung Lin
More than 1 billion people suffer from chronic respiratory diseases worldwide, accounting for more than 4 million deaths annually. Inhaled corticosteroid is a popular medication for treating chronic respiratory diseases. Its side effects include decreased bone mineral density and osteoporosis. The aims of this study are to investigate the association of inhaled corticosteroids and fracture and to design a clinical support system for fracture prediction. The data of patients aged 20 years and older, who had visited healthcare centers and been prescribed with inhaled corticosteroids within 2002-2010, were retrieved from the National Health Insurance Research Database (NHIRD)...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29760814/short-exposures-to-an-extremely-low-frequency-magnetic-field-elf-mf-enhance-protein-but-not-mrna-alkaline-phosphatase-expression-in-human-osteosarcoma-cells
#3
Tania Rescigno, Anna Capasso, Bruno Bisceglia, Mario Felice Tecce
Background: Among electromagnetic fields treatments used in orthopedics, extremely low-frequency magnetic fields (ELF MF) need more detailed information about the molecular mechanisms of their effects and exposure conditions. Objective: Evaluation of the effects of an ELF MF exposure system, recently introduced among current clinical treatments for fracture healing and other bone diseases, on Alkaline Phosphatase (ALP) activity and expression in a human osteosarcoma cell line (SaOS-2), as marker typically associated to osteogenesis and bone tissue regeneration...
2018: Open Biochemistry Journal
https://www.readbyqxmd.com/read/29760099/hydrogel-delivery-of-lysostaphin-eliminates-orthopedic-implant-infection-by-staphylococcus-aureus-and-supports-fracture-healing
#4
Christopher T Johnson, James A Wroe, Rachit Agarwal, Karen E Martin, Robert E Guldberg, Rodney M Donlan, Lars F Westblade, Andrés J García
Orthopedic implant infections are a significant clinical problem, with current therapies limited to surgical debridement and systemic antibiotic regimens. Lysostaphin is a bacteriolytic enzyme with high antistaphylococcal activity. We engineered a lysostaphin-delivering injectable PEG hydrogel to treat Staphylococcus aureus infections in bone fractures. The injectable hydrogel formulation adheres to exposed tissue and fracture surfaces, ensuring efficient, local delivery of lysostaphin. Lysostaphin encapsulation within this synthetic hydrogel maintained enzyme stability and activity...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29754095/linking-otolith-microchemistry-and-surface-water-contamination-from-natural-gas-mining
#5
David H Keller, Paula M Zelanko, Joel E Gagnon, Richard J Horwitz, Heather S Galbraith, David J Velinsky
Unconventional natural gas drilling and the use of hydraulic fracturing technology have expanded rapidly in North America. This expansion has raised concerns of surface water contamination by way of spills and leaks, which may be sporadic, small, and therefore difficult to detect. Here we explore the use of otolith microchemistry as a tool for monitoring surface water contamination from generated waters (GW) of unconventional natural gas drilling. We exposed Brook Trout in the laboratory to three volumetric concentrations of surrogate generated water (SGW) representing GW on day five of drilling...
May 10, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29736917/use-of-cancellous-bone-grafting-to-promote-granulation-tissue-in-a-distal-limb-wound-in-a-dog
#6
K Barnes, O Lanz, S Barry, K Aulakh
A 5-year-old female spayed Shetland sheepdog presented for evaluation of bandage sores on the left pelvic limb after a splint was placed to stabilise a digit fracture incurred approximately 2 weeks previously. Multiple areas of necrosis were identified upon bandage removal. After debridement of devitalised tissue, a 4 cm wound on the plantar surface of the metatarsal bones (with exposed bone and tendons) remained. The Papineau technique (which involves removal of infected or necrotic tissue, placement of autogenous cancellous bone graft within a wound, and delayed skin closure) was used to treat this wound...
May 7, 2018: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29725848/breakdown-of-demarcated-opacities-related-to-molar-incisor-hypomineralization-a-longitudinal-study
#7
Aline Borburema Neves, Gabriela Caldeira Andrade Americano, Daniella Varela Soares, Vera Mendes Soviero
OBJECTIVES: This prospective longitudinal study aimed to evaluate if the occurrence of post-eruptive breakdown of demarcated opacities in hypomineralized teeth is influenced by the color or location of the opacity. MATERIALS AND METHODS: Patients diagnosed with molar-incisor hypomineralization (MIH) between 2012 and 2014 were eligible. Two calibrated examiners performed the initial and follow-up evaluations according to European Academy of Paediatric Dentistry (EAPD) criteria...
May 3, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29725569/nontraumatic-acetabular-fracture-sustained-during-convulsive-seizure-following-surgery-for-an-unruptured-intracranial-aneurysm-a-case-report
#8
Hirofumi Iwamoto, Kazuhiro Nakamura, Daisuke Watanabe, Kiyoyuki Yanaka, Takeshi Ainoya, Tetsuya Yamamoto
Acetabular fracture usually is related to high-energy traumatic injury or falls from heights and directly caused by seizures without trauma is extremely rare. We report a 71-years-old man who sustained a left acetabular fracture secondary to generalized seizure after clipping of an unruptured aneurysm without trauma and any risk for fracture. The patient had an aneurysm was arising from the bifurcation of the left internal carotid artery and the posterior communicating artery. After the clipping, the patient had three times tonic-clonic seizures for 1 min and resulted in an acetabular fracture...
April 2018: NMC Case Report Journal
https://www.readbyqxmd.com/read/29723657/the-use-of-reconstruction-plates-to-treat-benign-mandibular-pathological-lesions-a-retrospective-clinical-study
#9
S C Isler, B Keskin Yalcin, S Cakarer, E Cansiz, A Gumusdal, C Keskin
INTRODUCTION: The purpose of this retrospective clinical study was to evaluate the indications for and the utility of reconstruction plates in the management of benign mandibular pathological lesions. The complications associated with plate use were also assessed. PATIENTS AND METHODS: The clinical and radiological data of 23 patients (16 males, 7 females) with large, benign mandibular pathologies were evaluated. During operations, reconstruction plates were used to prevent mandibular fracture or to allow for bone reconstruction after segmental or disarticulation resection...
April 30, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29714251/influences-of-surface-defects-on-the-laser-induced-damage-performances-of-kdp-crystal
#10
Shengfei Wang, Jian Wang, Qiao Xu, Xiangyang Lei, Zhichao Liu, Jianfeng Zhang
When potassium dihydrogen phosphate (KDP) crystals are exposed to high-energy laser irradiation, the pre-existing surface defects may act as damage precursors and will reduce the lifespan of the crystal components. Although it has been found that different kinds of surface defects exhibit distinct damage characteristics, the influence of surface defects on the laser-induced damage performance of KDP crystal is not yet clear. In this paper, KDP surface defects have been characterized by multiple measuring methods and classified into five categories according to their structure features...
April 1, 2018: Applied Optics
https://www.readbyqxmd.com/read/29713430/repair-bond-strength-of-resin-composite-to-bilayer-dental-ceramics
#11
Ayse Seda Ataol, Gulfem Ergun
PURPOSE: The purpose of this study was to investigate the effect of various surface treatments (ST) on the shear bond strength of resin composite to three bilayer dental ceramics made by CAD/CAM and two veneering ceramics. MATERIALS AND METHODS: Three different bilayer dental ceramics and two different veneering ceramics were used (Group A: IPS e.max CAD+IPS e.max Ceram; Group B: IPS e.max ZirCAD+IPS e.max Ceram, Group C: Vita Suprinity+Vita VM11; Group D: IPS e...
April 2018: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29707289/fractures-of-the-manubrium-sterni-treatment-options-and-a-possible-classification-of-different-types-of-fractures
#12
Stefan Schulz-Drost, Sebastian Krinner, Pascal Oppel, Sina Grupp, Melanie Schulz-Drost, Friedrich F Hennig, Andreas Langenbach
Background: Sternum fractures are mostly located on the sternal corpus, seldom on the manubrium. Fractures of the sternal manubrium are, however, more frequently associated with severe concomitant injuries of thoracic organs, and therefore deserve special attention. In addition, in its function as a capstone in between the anterior chest wall and the shoulder girdle, it is exposed to a multiplicity of forces. Therefore the questions arise what types of fractures are observed in today's clinical practice, how to classify them and which treatment options are available...
March 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29703789/bacteria-profile-and-antibiogram-of-the-bacteria-isolated-from-the-exposed-pulp-of-dog-canine-teeth
#13
José Carlos Almansa Ruiz, Annelize Jonker, Anna-Mari Bosman, Gerhard Steenkamp
Twenty-seven microbiological samples were taken from root canals (RC) of the canine teeth of 20 dogs where the pulps were non-vital and exposed due to complicated crown fractures. These pulps were cultured for aerobic/anaerobic bacteria. Antimicrobial susceptibility of isolates was determined using the Kirby-Bauer diffusion test. A total of 49 cultivable isolates, belonging to 27 different microbial species and 18 different genera, were recovered from the 27 RCs sampled. Twenty (40.81 per cent) of the cultivable isolates were Gram positive while 29 (59...
April 27, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29699560/alcohol-exposure-decreases-osteopontin-expression-during-fracture-healing-and-osteopontin-mediated-mesenchymal-stem-cell-migration-in-vitro
#14
Roman M Natoli, Henry Yu, Megan Conti-Mica Meislin, Pegah Abbasnia, Philip Roper, Aleksandra Vuchkovska, Xianghui Xiao, Stuart R Stock, John J Callaci
BACKGROUND: Alcohol consumption is a risk factor for impaired fracture healing, though the mechanism(s) by which this occurs are not well understood. Our laboratory has previously shown that episodic alcohol exposure of rodents negatively affects fracture callus development, callus biomechanics, and cellular signaling which regulates stem cell differentiation. Here, we examine whether alcohol alters chemokine expression and/or signaling activity in the mouse fracture callus during early fracture healing...
April 27, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29698292/does-the-watson-jones-or-modified-smith-petersen-approach-provide-superior-exposure-for-femoral-neck-fracture-fixation
#15
Paul M Lichstein, John P Kleimeyer, Michael Githens, John S Vorhies, Michael J Gardner, Michael Bellino, Julius Bishop
BACKGROUND: A well-reduced femoral neck fracture is more likely to heal than a poorly reduced one, and increasing the quality of the surgical exposure makes it easier to achieve anatomic fracture reduction. Two open approaches are in common use for femoral neck fractures, the modified Smith-Petersen and Watson-Jones; however, to our knowledge, the quality of exposure of the femoral neck exposure provided by each approach has not been investigated. QUESTIONS/PURPOSES: (1) What is the respective area of exposed femoral neck afforded by the Watson-Jones and modified Smith-Petersen approaches? (2) Is there a difference in the ability to visualize and/or palpate important anatomic landmarks provided by the Watson-Jones and modified Smith-Petersen approaches? METHODS: Ten fresh-frozen human pelvi underwent both modified Smith-Petersen (utilizing the caudal extent of the standard Smith-Petersen interval distal to the anterosuperior iliac spine and parallel to the palpable interval between the tensor fascia lata and the sartorius) and Watson-Jones approaches...
April 24, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29698075/repair-of-a-tibiotarsal-fracture-in-a-pomeranian-goose-anser-anser-with-a-locking-plate
#16
Pavel Slunsky, Janine Weiß, Alexander Haake, Muhammad Shahid, Leo Brunnberg, Kerstin Müller
A 2-year-old Pomeranian goose ( Anser anser) weighing 8.1 kg was examined because of non-weight-bearing lameness of the right limb. A closed, transverse, diaphyseal fracture of the distal third of the right tibiotarsus with a craniolateral displacement of the distal fragment was diagnosed radiographically. Surgery under general anesthesia was performed to repair the fracture with a 14-hole, 2.7-mm locking plate fixed with 6 screws in a bicortical manner. Two days later, the bird was fully weight-bearing on the leg...
March 2018: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29688914/antipsychotic-drug-exposure-and-risk-of-fracture-a-systematic-review-and-meta-analysis-of-observational-studies
#17
Davide Papola, Giovanni Ostuzzi, Lehana Thabane, Gordon Guyatt, Corrado Barbui
To investigate the extent to which exposure to first-generation and second-generation antipsychotics (APs) is associated with an increased risk of fractures, with a particular focus on hip fractures, and to ascertain the risk associated with exposure to individual drugs. We included observational studies that reported data on fractures in individuals exposed to APs compared with unexposed individuals or individuals with previous exposure. We extracted information on study design, source of data, population characteristics, outcomes of interest, matching and confounding factors, and used a modified version of the Newcastle-Ottawa Scale to judge study risk of bias...
April 23, 2018: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29688236/l-%C3%A3-valuation-m%C3%A3-dicale-des-fractures-en-cas-de-soup%C3%A3-ons-de-maltraitance-les-nourrissons-et-les-jeunes-enfants-atteints-d-une-l%C3%A3-sion-squelettique
#18
Laurel Chauvin-Kimoff, Claire Allard-Dansereau, Margaret Colbourne
Les fractures sont des lésions courantes pendant l'enfance. La plupart sont causées par un traumatisme accidentel, mais les traumatismes non accidentels (maltraitance) sont de graves causes de fractures qui ne sont pas toujours dépistées, notamment chez les nourrissons et les jeunes enfants. Le présent point de pratique passe en revue les caractéristiques cliniques qui soulèvent des soupçons de lésions squelettiques non accidentelles et expose une méthode de prise en charge reposant sur les publications à jour et les lignes directrices publiées...
April 2018: Paediatrics & Child Health
https://www.readbyqxmd.com/read/29684862/antioxidant-effects-of-lycium-barbarum-polysaccharides-on-photoreceptor-degeneration-in-the-light-exposed-mouse-retina
#19
Liujiu Tang, Shuyin Bao, Yu Du, Zengyan Jiang, A O Wuliji, Xiang Ren, Chenghong Zhang, Haiying Chu, Li Kong, Haiying Ma
We assessed the neuroprotective effects of Lycium barbarum Polysaccharides (LBP) on photoreceptor degeneration and the mechanisms involved in oxidative stress in light-exposed mouse retinas. Mice were given a gavage of LBP (150 mg/kg or 300 mg/kg) or phosphate buffered saline (PBS) for 7 days before exposure to light (5000 lx for 24 h). We found that LBP significantly improved the electroretinography (ERG) amplitudes of the a- and b-waves that had been attenuated by light exposure. In addition, changes caused by light exposure including photoreceptor cell loss, nuclear condensation, an increased number of mitochondria vacuoles, outer membrane disc swelling and cristae fractures were distinctly ameliorated by LBP...
April 20, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29679025/combining-electrical-stimulation-and-tissue-engineering-to-treat-large-bone-defects-in-a-rat-model
#20
Liudmila Leppik, Han Zhihua, Sahba Mobini, Vishnu Thottakkattumana Parameswaran, Maria Eischen-Loges, Andrei Slavici, Judith Helbing, Lukas Pindur, Karla M C Oliveira, Mit B Bhavsar, Lukasz Hudak, Dirk Henrich, John H Barker
Bone Tissue engineering (BTE) has recently been introduced as an alternative to conventional treatments for large non-healing bone defects. BTE approaches mimic autologous bone grafts, by combining cells, scaffold, and growth factors, and have the added benefit of being able to manipulate these constituents to optimize healing. Electrical stimulation (ES) has long been used to successfully treat non-healing fractures and has recently been shown to stimulate bone cells to migrate, proliferate, align, differentiate, and adhere to bio compatible scaffolds, all cell behaviors that could improve BTE treatment outcomes...
April 20, 2018: Scientific Reports
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