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https://www.readbyqxmd.com/read/28441666/a-microrna-124-polymorphism-is-associated-with-fracture-healing-via-modulating-bmp6-expression
#1
Lin Zou, Guichun Zhang, Lifeng Liu, Chen Chen, Xuecheng Cao, Jinfang Cai
BACKGROUND: miR-124-3p has been reported to be involved in the pathogenesis of many diseases by modulating a variety of signaling pathways. In this study, we aimed to understand the impact of miR-124-3p expression level on the fracture healing in the patients of metaphyseal fracture of distal tibia, who received minimal invasive percutaneous plate osteosynthesis. METHODS: We firstly collected 195 patients of metaphyseal fracture of distal tibia, and the genotype of rs531564 was determined: GG (n=124) and GC+CC (n=71)...
April 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28441352/high-throughput-determination-of-sodium-danshensu-in-beagle-dogs-by-the-lcms-ms-method-employing-liquid-liquid-extraction-based-on-96-well-format-plates
#2
Jingjing Jiang, Xin Zhao, Xiuxiu Li, Shengyuan Wu, Shidan Yu, Yuefen Lou, Guorong Fan
Sodium Danshensu (sodium d-(+)-β-(3,4-dihydroxyphenyl) lactate), one of the water-soluble ingredients in Salvia miltiorrhiza, exhibits potent relaxation of the coronary artery and anticoagulation effection. A high-throughput, rapid, and sensitive method combining liquid chromatography with electrospray ionization tandem mass spectrometry to determine the sodium danshensu in beagle dog plasma was developed and validated, using gallic acid as an internal standard (IS). Acidified plasma samples were extracted using 96-well liquid-liquid extraction, and were eluted on a CNW Athena C18 column (3 μm, 2...
April 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441055/ex-vivo-biomechanical-evaluation-of-pigeon-columba-livia-cadaver-intact-humeri-and-ostectomized-humeri-stabilized-with-caudally-applied-titanium-locking-plate-or-stainless-steel-nonlocking-plate-constructs
#3
Brett G Darrow, Jeffrey J Biskup, Joseph P Weigel, Michael P Jones, Xie Xie, Peter K Liaw, Josh L Tharpe, Aashish Sharma, Dayakar Penumadu
OBJECTIVE To evaluate mechanical properties of pigeon (Columba livia) cadaver intact humeri versus ostectomized humeri stabilized with a locking or nonlocking plate. SAMPLE 30 humeri from pigeon cadavers. PROCEDURES Specimens were allocated into 3 groups and tested in bending and torsion. Results for intact pigeon humeri were compared with results for ostectomized humeri repaired with a titanium 1.6-mm screw locking plate or a stainless steel 1.5-mm dynamic compression plate; the ostectomized humeri mimicked a fracture in a thin cortical bone...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28440911/unnoticed-aspiration-of-palate-plate-impression-material-in-a-neonate-diagnosis-therapy-outcome
#4
Friedrich Reichert, Peter Amrhein, Frank Uhlemann
A 7 week old infant was admitted with respiratory failure. Chest X-ray showed an atelectatic right upper lobe, herniation of right middle and lower lobe into the left thorax, and compression-atelectasis of the left lung. Thoracic CT showed complete occlusion of the right superior bronchus with a radiopaque foreign material. Six weeks prior, an impression for a palate plate using polyvinylsiloxane was taken. The material was removed with a rigid endoscopy, in readiness of extracorporeal oxygenation in case of tracheal obstruction or bronchial rupture...
April 25, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28440509/modulation-of-mmp-2-and-9-secretion-by-cytokines-inducers-and-inhibitors-in-human-melanoma-a-2058-cells
#5
M Waheed Roomi, Tatiana Kalinovsky, Aleksandra Niedzwiecki, Matthias Rath
Melanoma, an extremely aggressive cancer, causes the most skin cancer-related deaths, due to metastasis to other areas of the body, such as lymph nodes, lungs, liver, brain or bone. It is characterized by high levels of matrix metalloproteinase (MMP)-2 and -9 secretions that degrade the extracellular matrix and basement membrane, allowing cancer cells to spread to distal organs. Various cytokines, mitogens, growth factors, inducers and inhibitors control MMP activities. We investigated the roles of these in regulation of MMP-2 and -9 in human melanoma A-2058 cells...
April 24, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440371/role-of-uncrosslinked-chains-in-droplets-dynamics-on-silicone-elastomers
#6
Aurélie Hourlier-Fargette, Arnaud Antkowiak, Antoine Chateauminois, Sébastien Neukirch
We report an unexpected behavior in wetting dynamics on soft silicone substrates: the dynamics of aqueous droplets deposited on vertical plates of such elastomers exhibits two successive speed regimes. This macroscopic observation is found to be closely related to microscopic phenomena occurring at the scale of the polymer network: we show that uncrosslinked chains found in most widely used commercial silicone elastomers are responsible for this surprising behavior. A direct visualization of the uncrosslinked oligomers collected by water droplets is performed, evidencing that a capillarity-induced phase separation occurs: uncrosslinked oligomers are extracted from the silicone elastomer network by the water-glycerol mixture droplet...
April 25, 2017: Soft Matter
https://www.readbyqxmd.com/read/28440203/antimicrobial-biofilm-inhibitory-and-anti-infective-activity-of-metallic-nanoparticles-against-multi-drug-resistant-mrsa-and-pseudomonas-aeruginosa-pa01
#7
Jamuna Bai Ashwathanarayan, Ravishankar Rai Vittal
BACKGROUND: The emergence of drug resistant pathogens is a major concern to the scientific community. Novel approaches such as the use of functionalized nanomaterials with antimicrobial activity is required to treat infectious diseases. OBJECTIVE: In the present study, the metallic nanoparticles (iron, gold, zinc oxide and copper oxide) were evaluated for the antimicrobial, biofilm inhibitory and anti-infective activity against human pathogens methicillin resistant Staphylococcus aureus and Pseudomonas aeruginosa PA01...
April 24, 2017: Pharmaceutical Nanotechnology
https://www.readbyqxmd.com/read/28440039/effect-of-photoactivation-on-the-reduction-of-composite-resin-contamination
#8
Natalia A Pauletti, Luiza P S Girotto, Françoise H S Leite, Débora N Mario
Composite resins are predominantly marketed in developing countries in tube form, and the contents of the tube may be used in numerous procedures for different patients. This represents a problem because of the risk of cross-contamination. This study aimed to evaluate contamination in vitro of the internal contents of composite resin tubes in the dental clinics of a higher-education institution, as well as the effect of photoactivation on the level of contamination. Twenty-five tubes containing composite resin were randomly chosen (by lottery)...
April 24, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28439945/enhancement-of-cardiomyogenesis-in-murine-stem-cells-by-low-intensity-ultrasound
#9
Ailing Teo, Amir Morshedi, Jen-Chieh Wang, Yufeng Zhou, Mayasari Lim
OBJECTIVES: Low-intensity ultrasound (LIUS) has been shown to enhance bone and cartilage regeneration from stem cells. The ease of its incorporation makes it an attractive mechanical stimulus for not only osteogenesis and chondrogenesis, but also cardiomyogenesis. However, to date, no study has investigated its effects on cardiomyogenesis from embryonic stem cells. METHODS: In this study, murine embryonic stem cells were differentiated via embryoid body formation and plating, and after 3 days they were subjected to daily 10 minutes of LIUS treatment with various conditions: (1) low-pulsed (21 mW/cm(2) , 20% duty cycle), (2) low-continuous, (3) high-pulsed (147 mW/cm(2) , 20% duty cycle), and (4) high-continuous LIUS...
April 25, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28439823/high-throughput-rt-qpcr-for-the-analysis-of-circulating-micrornas
#10
Geok Wee Tan, Lu Ping Tan
Reverse transcription followed by real-time or quantitative polymerase chain reaction (RT-qPCR) is the gold standard for validation of results from transcriptomic profiling studies such as microarray and RNA sequencing. The current need for most studies, especially biomarker studies, is to evaluate the expression levels or fold changes of many transcripts in a large number of samples. With conventional low to medium throughput qPCR platforms, many qPCR plates would have to be run and a significant amount of RNA input per sample will be required to complete the experiments...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28439704/treatment-of-type-b-pelvic-fracture-using-anterior-subcutaneous-internal-fixator-with-triple-pedicle-screws-a-new-surgical-technique
#11
Qian Wang, Qiugen Wang, Jiandong Wang
INTRODUCTION: To evaluate the clinical outcomes of anterior subcutaneous internal fixator using triple pedicle screws (ASIF/TPS) in the treatment of unstable type B pelvic fracture compared with open reduction internal fixation (ORIF). MATERIALS AND METHODS: This was a retrospective cohort study of 26 patients with type B unstable fractures that underwent ASIF/TPS and 26 similar patients that underwent ORIF using plates and screws. Intraoperative blood loss, operating time, and post operation hospitalization duration were compared...
April 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28439316/epigenetic-assays-for-chemical-biology-and-drug-discovery
#12
REVIEW
Sheraz Gul
The implication of epigenetic abnormalities in many diseases and the approval of a number of compounds that modulate specific epigenetic targets in a therapeutically relevant manner in cancer specifically confirms that some of these targets are druggable by small molecules. Furthermore, a number of compounds are currently in clinical trials for other diseases including cardiovascular, neurological and metabolic disorders. Despite these advances, the approved treatments for cancer only extend progression-free survival for a relatively short time and being associated with significant side effects...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28439312/validation-of-the-multiplier-method-for-leg-length-predictions-on-a-large-european-cohort-and-an-assessment-of-the-effect-of-physiological-age-on-predictions
#13
J J Aird, C L Cheesman, A T Schade, F P Monsell
PURPOSE: The Avon Longitudinal Study of Parents and Children (ALSPAC) prospective cohort was used to determine the accuracy of the Paley multiplier method for predicting leg length. Using menarche as a proxy, physiological age was then used to increase the accuracy of the multiplier. METHODS: Chronological age was corrected in female patients over the age of eight years with documented date of first menses. Final sub-ischial leg length and predicted final leg length were predicted for all data points...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28439311/treatment-of-shepherd-s-crook-deformity-in-patients-with-polyostotic-fibrous-dysplasia-using-a-new-type-of-custom-made-retrograde-intramedullary-nail-a-technical-note
#14
F Hefti, L Donnan, A H Krieg
AIMS: The severe form of coxa vara, the 'shepherd's crook deformity', is always a consequence of a locally extensive form of polyostotic fibrous dysplasia (or McCune-Albright syndrome). Treatment of this deformity is a challenge. The soft bone does not tolerate any implant that depends on the stability of the cortical bone (like plates or external fixators). Intramedullary nails are the most appropriate implants for stabilisation, but if they are inserted from the greater trochanter, they cannot correct the varus deformity enough...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28439306/fibular-strut-graft-for-nonunited-femoral-neck-fractures-in-children
#15
A Elgeidi, A El-Negery
PURPOSE: To evaluate the clinical and radiological outcomes of using fibular strut grafts as a fixation device for non-united femoral neck fractures in children with or without subtrochanteric valgus osteotomy. METHODS: A total of 12 children with non-united femoral neck fractures (nine males and three females) with an average age of 8.2 years (5 to 12) were managed, and functional results evaluated, between July 2013 and July 2015. The mechanisms of injury were fall from a height in ten patients and road traffic accident in two cases...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28439305/costal-cartilage-transplantation-for-treatment-of-growth-plate-injury-in-a-rabbit-model
#16
D Otsuki, K Yoshida, M Kobayashi, D Hamano, C Higuchi, H Yoshikawa
OBJECTIVES: The purpose of this study is to evaluate the effects of allogenic costal cartilage transplantation on preventing bony bridge formation and angular deformities for the treatment of partial growth plate injury using a rabbit model. METHODS: An experimental model of partial growth injury was created by resecting the medial part of the proximal tibial growth plate in male six-week-old New Zealand White rabbits. The rabbits were divided into four groups: no surgery; no transplantation; bone wax transplantation; and allogenic costal cartilage transplantation...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28439303/proximal-femoral-osteotomy-in-children-with-cerebral-palsy-the-perspective-of-the-trainee
#17
L Zhou, M Camp, A Gahukamble, K L Willoughby, M Harambasic, C Molesworth, A Khot, H K Graham
BACKGROUND: There are a range of implants for fixation of proximal femoral osteotomies (PFOs) in children. We investigated the training experiences and preferences of orthopaedic residents and fellows who were learning PFO, using a fixed angled blade plate (ABP) or a locking, cannulated blade plate (LCBP). We also studied short-term technical and radiographic outcomes. METHODS: This was a prospective, parallel-group, cohort study of 90 consecutive children and adolescents with cerebral palsy who underwent bilateral PFOs with ABP or LCBP...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28439162/evaluating-the-effect-of-minimizing-screws-on-stabilization-of-symphysis-mandibular-fracture-by-3d-finite-element-analysis
#18
Ghias Kharmanda, Mohamed-Yaser Kharma
PURPOSE: The objective of this work is to integrate structural optimization and reliability concepts into mini-plate fixation strategy used in symphysis mandibular fractures. The structural reliability levels are next estimated when considering a single failure mode and multiple failure modes. PATIENTS AND METHODS: A 3-dimensional finite element model is developed in order to evaluate the ability of reducing the negative effect due to the stabilization of the fracture...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28439161/three-dimensional-analysis-of-the-anatomical-characteristics-and-dimensions-of-the-nasopalatine-canal-using-cone-beam-computed-tomography
#19
Nikhil V Jain, Affaf A Gharatkar, Bandish A Parekh, Smita I Musani, Umang Deepak Shah
AIM: Placement of implants in the maxillary anterior region needs to be preceded by careful analysis of the area as in addition to the functional aspect the esthetic outcome is of prime importance. This descriptive study evaluated anatomical characteristics and dimensions of the nasopalatine canal (NC) from coronal, sagittal and axial aspects using cone beam computed tomography (CBCT) giving it a three dimensional analytical approach. Also the dimensions of the corresponding buccal bone plate (BBP) of the alveolar process were evaluated...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28439002/reading-a-400-000-year-record-of-earthquake-frequency-for-an-intraplate-fault
#20
Randolph T Williams, Laurel B Goodwin, Warren D Sharp, Peter S Mozley
Our understanding of the frequency of large earthquakes at timescales longer than instrumental and historical records is based mostly on paleoseismic studies of fast-moving plate-boundary faults. Similar study of intraplate faults has been limited until now, because intraplate earthquake recurrence intervals are generally long (10s to 100s of thousands of years) relative to conventional paleoseismic records determined by trenching. Long-term variations in the earthquake recurrence intervals of intraplate faults therefore are poorly understood...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
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