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https://www.readbyqxmd.com/read/28644119/damage-control-plating-in-open-tibial-shaft-fractures-a-cheaper-and-equally-effective-alternative-to-spanning-external-fixation
#1
Paul S Whiting, Phillip M Mitchell, Aaron M Perdue, Arnold J Silverberg, Sarah E Greenberg, Rachel V Thakore, Vasanth Sathiyakumar, Hassan R Mir, William T Obremskey, Manish K Sethi
The purpose of this study was to evaluate damage control plating (DCP) as an alternative to external fixation (EF) in the provisional stabilization of open tibial shaft fractures. Through retrospective analysis, the study found 445 patients who underwent operative fixation for tibial shaft fractures from 2008 to 2012. Twenty patients received DCP or EF before intramedullary nailing with a minimum follow-up of 3 months. Charts and radiographs were reviewed for postoperative complications. Hospital charges were reviewed for implant costs...
2017: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/28644107/gingival-perfusion-and-tissue-biomarkers-during-early-healing-of-post-extraction-regenerative-procedures-a-prospective-case-series
#2
Lamees Alssum, Timothy D Eubank, Sashwati Roy, Barbaros S Erdal, Vedat O Yildiz, Dimitris N Tatakis, Binnaz Leblebicioglu
BACKGROUND: Post-extraction alveolar bone loss, mostly affecting the buccal plate, occurs despite regenerative procedures. To better understand possible determinants, this prospective case series assessed gingival blood perfusion and tissue molecular responses in relation to post-extraction regenerative outcomes. METHODS: Adults scheduled to receive bone grafting in maxillary, non-molar, single tooth extraction site were recruited. Clinical documentation included probing pocket depth (PD), keratinized tissue width (KT), tissue biotype (TB), plaque (P) and bleeding...
June 23, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28643917/estrogen-receptor-alpha-mediates-mandibular-condylar-cartilage-growth-in-male-mice
#3
J L Robinson, V Gupta, P Soria, E Clanaman, S Gurbarg, M Xu, J Chen, S Wadhwa
OBJECTIVES: In the appendicular skeleton, estrogen via ERα signalling has been shown to mediate endochondral growth plate fusion in both males and females. However, the role of ERα in mediating growth of the mandibular condylar cartilage is unknown. Thus, this study focuses on the characterization of the mandibular condylar cartilage phenotype in young and adult male ERαKO mice. SETTING: Columbia University Medical Center. MATERIAL AND METHODS: WT and ERαKO C57BL/6 male mice were sacrificed at 49 days or 9 months for phenotypic analysis...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28643832/metasurface-integrated-high-energy-efficient-and-high-linearly-polarized-ingan-gan-light-emitting-diode
#4
Miao Wang, Fuyang Xu, Yu Lin, Bing Cao, Linghua Chen, Chinhua Wang, Jianfeng Wang, Ke Xu
We proposed and demonstrated an integrated high energy efficient and high linearly polarized InGaN/GaN green LED grown on (0001) oriented sapphire with combined metasurface polarizing converter and polarizer system. It is different from those conventional polarized light emissions generated with plasmonic metallic grating in which at least 50% high energy loss occurs inherently due to high reflection of the transverse electric (TE) component of an electric field. A reflecting metasurface, with a two dimensional elliptic metal cylinder array (EMCA) that functions as a half-wave plate, was integrated at the bottom of a LED such that the back-reflected TE component, that is otherwise lost by a dielectric/metal bi-layered wire grids (DMBiWG) polarizer on the top emitting surface of the LED, can be converted to desired transverse magnetic (TM) polarized emission after reflecting from the metasurface...
June 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/28643556/catalytic-oxidation-of-toluene-comparative-study-over-powder-and-monolithic-manganese-nickel-mixed-oxide-catalysts
#5
Marina Duplančić, Vesna Tomašić, Zoran Gomzi
This paper is focused on development of the metal monolithic structure for total oxidation of toluene at low temperature. The well adhered catalyst, based on the mixed oxides of manganese and nickel, is washcoated on the Al/Al2O3 plates as metallic support. The influence of different reaction variables on the catalytic performance in the toluene oxidation is investigated. For the comparison purposes results observed for the manganese-nickel mixed oxide supported on the metallic monolith are compared with those obtained using powder type of the same catalyst...
June 23, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28643552/drug-induced-physeal-abnormalities-in-preclinical-toxicity-studies
#6
Kendall S Frazier
Most toxic physeal changes are characterized microscopically by altered chondrocyte development, proliferation, or maturation in the growth plate and eventually result in disordered appositional bone growth. Many therapeutic drugs directly or indirectly target proteins involved in chondrocytic differentiation and maturation pathways, so toxic physeal injury has become increasingly common in preclinical toxicologic pathology. While physeal dysplasia has been associated with several different drug classes including bisphosphonates, vascular endothelial growth factor receptor inhibitors, fibroblast growth factor receptor inhibitors, transforming growth factor beta receptor inhibitors, and vascular targeting agents, physeal changes often share similar morphologic features including thickening and disorganization of the hypertrophic layer, increased numbers of hypertrophic chondrocytes, altered mineralization of endochondral ossification, and/or increased thickness of subphyseal bone...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28643518/mini-c-arm-fluoroscopy-does-its-configuration-matter-for-radiation-exposure-to-the-surgeon
#7
Talia Chapman, Dennis P Martin, Christopher Williamson, Brian Tinsley, Mark L Wang, Asif M Ilyas
BACKGROUND: The risk of occupational radiation exposure to the surgeon associated with the use of a mini C-arm has yet to reach a wide consensus. Using a distal radius fracture surgery model, we tested the hypothesis that radiation exposure to the surgeon's critical body parts is independent of mini C-arm configuration. METHODS: An anthropomorphic mannequin (representing the upper body of a 60" male surgeon) was seated at a hand table as if operating on a volar-plated wrist Sawbone model...
June 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28643432/the-penetration-and-phenotype-modulation-of-smooth-muscle-cells-on-surface-heparin-modified-poly-%C3%AE%C2%B5-caprolactone-vascular-scaffold
#8
Jie Cao, Xue Geng, Juan Wen, Qingxuan Li, Lin Ye, Aiying Zhang, Zengguo Feng, Lianrui Guo, Yongquan Gu
The tubular porous poly(ε-caprolactone)(PCL) scaffold was fabricated by electrospinning. After then, the scaffold's surface was firstly eroded by hexyldiamine to endow amine group, and heparin was covalently grafted to the surface to get surface heparin modified scaffold(ShPCL scaffold). It was found that ShPCL scaffold can induce smooth muscle cells (SMCs) to penetrate the scaffold surface, while the SMCs can't penetrate the surface of PCL scaffold. Subsequently, the rabbit SMCs were seeded on the ShPCL scaffold and cultured for 14 days...
June 23, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28643230/crosstalk-between-m2-macrophages-and-glioma-stem-cells
#9
Leora M Nusblat, Molly J Carroll, Charles M Roth
PURPOSE: Given its extremely poor prognosis, there is a pressing need for an improved understanding of the biology of glioblastoma multiforme (GBM), including the roles of tumor subpopulations that may contribute to their growth rate and therapy resistance. The most malignant phenotypes of GBM have been ascribed to the presence of subpopulations of cancer stem cells (CSCs), which are resistant to chemotherapeutic drugs and ionizing radiation and which promote invasiveness and metastasis...
June 22, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28642986/viridiuvalis-adhaerens-gen-et-sp-nov-a-novel-colony-forming-chlorarachniophyte
#10
Takashi Shiratori, Sakuya Fujita, Tenma Shimizu, Takeshi Nakayama, Ken-Ichiro Ishida
A new chlorarachniophyte, Viridiuvalis adhaerens gen. et sp. nov. was isolated from the mucus on a coral reef from Zanpa Beach, Okinawa, Japan. The main vegetative stage of V. adhaerens consisted of unicellular coccoid cells with cell walls, although sarcinoid colonies and uniflagellate zoospores were also observed. V. adhaerens had chloroplasts with nucleomorphs and pyrenoids that were completely embedded in the chloroplast. A deep plate-like invagination of the periplastidal compartment (PPC) almost partitioned the pyrenoid and chloroplast components, which were surrounded by two membranes...
June 22, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28642979/-medial-opening-wedge-high-tibial-osteotomy
#11
REVIEW
P Niemeyer, A Stöhr, M Köhne, A Hochrein
OBJECTIVE: Reduction of the load to the medial compartment in patients with medial knee osteoarthritis and varus malalignment. Unloading of the posterolateral complex in varus deformity with complex ligamentous laxity. INDICATIONS: Medial knee osteoarthritis and varus malalignment with largely intact lateral and patellofemoral joint aspect. Complex ligament insufficiency combined with varus deformity. CONTRAINDICATIONS: Substantially impaired range of motion...
June 22, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28642914/antimicrobial-properties-and-dental-pulp-stem-cell-cytotoxicity-using-carboxymethyl-cellulose-silver-nanoparticles-deposited-on-titanium-plates
#12
Martha Alicia Laredo-Naranjo, Roberto Carrillo-Gonzalez, Myriam Angelica De La Garza-Ramos, Marco Antonio Garza-Navarro, Hilda H H Torre-Martinez, Casiano Del Angel-Mosqueda, Roberto Mercado-Hernandez, Roberto Carrillo-Fuentevilla
Objective: To evaluate the antimicrobial properties and dental pulp stem cells (DPSCs) cytotoxicity of synthesized carboxymethyl cellulose-silver nanoparticles impregnated on titanium plates. Material and methods: The antibacterial effect of silver nanoparticles in a carboxymethyl cellulose matrix impregnated on titanium plates (Ti-AgNPs) in three concentrations: 16%, 50% and 100% was determined by adding these to bacterial cultures of Streptococcus mutans and Porphyromonas gingivalis. The Ti-AgNPs cytotoxicity on DPSCs was determined using a fluorimetric cytotoxicity assay with 0...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28642766/high-throughput-screening-method-for-identifying-potential-agonists-and-antagonists-of-arabidopsis-thaliana-cytokinin-receptor-cre1-ahk4
#13
Pavel Klimeš, Dušan Turek, Pavel Mazura, Lucia Gallová, Lukáš Spíchal, Břetislav Brzobohatý
The CRE1/AHK4 cytokinin receptor is an important component of plants' hormone signaling systems, and compounds that can alter its activity have potential utility for studying the receptor's functions and/or developing new plant growth regulators. A high throughput method was developed for screening compounds with agonist or antagonist properties toward the CRE1/AHK4 cytokinin receptor in a single experiment using the Nanodrop II liquid handling system and 384-well plates. Potential ligands are screened directly, using a reporter system in which receptor signaling activity triggers expression of β-galactosidase in Escherichia coli...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28642671/subchondral-raft-construction-with-locking-plates-for-the-treatment-of-schatzker-type-ii-fractures
#14
Cemil Kayali, Caner Citak, Taskin Altay, Zafer Kement
OBJECTIVES: To evaluate the functional and radiological results of Schatzker type II fractures treated via subchondral raft screws combined with locking plates. METHODS: Twenty-four individuals were enrolled in this study between 2010 and 2014. The depressed joint line was elevated and the defect was filled with allograft. Next, two or three subchondral screws were placed in combination with a locking plate. At the last follow-up, clinical and radiological data were recorded...
May 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28642163/perianal-structures-in-myrmecophilous-subterranean-aphids-insecta-hemiptera-aphididae-comparative-morphology-of-trophobiotic-organ-with-its-first-description-in-lachninae
#15
Mariusz Kanturski, Jagna Karcz, Natalia Kaszyca, Łukasz Depa
Scanning electron microscopy (SEM) and light stereoscopic microscopy (LSM) were used for the first time to elucidate the external morphology of the so called "trophobiotic organ" on the end of abdomen of apterous viviparous females of six aphid species (Insecta: Hemiptera: Aphididae), representatives of the myrmecophilous, subterranean aphids from the subfamilies Anoeciinae (Anoecia furcata), Eriosomatinae (Forda formicaria, Geoica utricularia, Tetraneura ulmi), and Lachninae (Protrama flavescens, Trama troglodytes)...
June 19, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28641915/the-antimicrobial-spectrum-of-xeroform-%C3%A2
#16
David J Barillo, Anthony R Barillo, Sarah Korn, Kan Lam, Paul S Attar
INTRODUCTION/BACKGROUND: Xeroform(®) is a petrolatum-based fine mesh gauze containing 3% bismuth tribromophenate. Bismuth, similar to other metals, has antimicrobial properties. Xeroform(®) has been used for decades in burn and plastic surgery as a donor site dressing and as a covering for wounds or partial thickness burns. Despite this, the antimicrobial spectrum of Xeroform(®) remains largely unknown. We examined the in-vitro efficacy of Xeroform(®) against common burn pathogens using zone-of-inhibition methodology in a commercial research facility...
June 19, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28641837/corrigendum-to-metaphyseal-locking-plate-as-an-external-fixator-for-open-tibial-fracture-clinical-outcomes-and-biomechanical-assessment-injury-48-2-2017-501-505
#17
Ching-Hou Ma, Chin-Hsien Wu, Jiun-Ru Jiang, Yuan-Kun Tu, Ting-Sheng Lin
No abstract text is available yet for this article.
June 19, 2017: Injury
https://www.readbyqxmd.com/read/28641611/-dmso-promotes-hematopoietic-differentiation-of-human-embryonic-stem-cells-in-vitro
#18
Hong-Tao Wang, Meng-Ge Wang, Xin Liu, Pei Su, Lei-Sheng Zhang, Cui-Cui Liu, Yu Wang, Dan Wu, Qian Tu, Jia-Xi Zhou
OBJECTIVE: To explore the role of dimethyl sulfoxide (DMSO) in the hematopoietic differentiation of human embryonic stem cells (hESCs). METHODS: The role of DMSO in hematopoietic differentiation of hESC was investigated by using a established stepwise hematopoietic differentiation system from hESC, immunofluorescouse assay and flow cytometry. Furthermore, the window phase of DMSO action was explored by adding it to the different stage of hematopoietic differentiation...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641526/biology-oriented-synthesis-bios-of-piperine-derivatives-and-their-comparative-analgesic-and-antiinflammatory-activities
#19
Ammar Yasir, Saiqa Ishtiaq, Muhammad Jahangir, Muhammad Ajaib, Uzma Salar, Khalid Mohammed Khan
BACKGROUND: Serious side effects such as gastric intestinal ulcer, bleeding etc. are associated with most of the antiinflammatory and analgesic drugs. So there is a need to search novel, potent, and safer antiinflammatory and analgesic drug. METHOD: Based on "biology-oriented synthesis approach", piperine alkaloid was isolated from Piper nigrum L. and some derivatives of piperine having azomethine, sulfamoyl, propanoyl, acetamoyl and heterocyclic oxadiazole were synthesized...
June 22, 2017: Medicinal Chemistry
https://www.readbyqxmd.com/read/28641198/combined-computational-experimental-approach-to-predict-blood-brain-barrier-bbb-permeation-based-on-green-salting-out-thin-layer-chromatography-supported-by-simple-molecular-descriptors
#20
Krzesimir Ciura, Mariusz Belka, Piotr Kawczak, Tomasz Bączek, Michał J Markuszewski, Joanna Nowakowska
The objective of this paper is to build QSRR/QSAR model for predicting the blood-brain barrier (BBB) permeability. The obtained models are based on salting-out thin layer chromatography (SOTLC) constants and calculated molecular descriptors. Among chromatographic methods SOTLC was chosen, since the mobile phases are free of organic solvent. As consequences, there are less toxic, and have lower environmental impact compared to classical reserved phases liquid chromatography (RPLC). During the study three stationary phase silica gel, cellulose plates and neutral aluminum oxide were examined...
June 3, 2017: Journal of Pharmaceutical and Biomedical Analysis
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