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https://www.readbyqxmd.com/read/29352772/neurotransmitters-and-receptors-changes-in-medial-nucleus-of-the-trapezoid-body-mntb-of-early-developmental-rats-with-single-side-deafness
#1
Jinsheng Dai, Jinfeng Liu, Mo Zhou, Wenjiao Wang, Zhi-Qing David Xu, Ningyu Wang
BACKGROUND Congenital single-side deafness (SSD) affects sound localization even after cochlear implantation (CI) in some conditions. The medial nucleus of the trapezoid body (MNTB) plays an important role in binaural benefit and sound localization, but little is known about intrinsic molecular changes in MNTB with SSD. We aimed to observe changes in MNTB in early-developmental SSD rats, including the key neurotransmitters (GABA, Gly, Glu) and major receptors (GABAa-R/GABAb-R for GABA, Gly-R for Gly, and AMPA/NMDA for Glu)...
January 20, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29352728/differential-proteomic-analysis-of-synovial-fluid-from-hip-arthroplasty-patients-with-a-pseudotumor-vs-periprosthetic-osteolysis
#2
Isabelle Catelas, Eric A Lehoux, Zhibin Ning, Daniel Figeys, Stephen J Baskey, Paul E Beaulé
Adverse tissue reactions to metal implants, including pseudotumors, can compromise implant functionality and survivorship. The identification of specific proteins in the synovial fluid (SF) of hip arthroplasty patients with a pseudotumor may lead to a better understanding of the underlying pathomechanisms. The objective of the present study was to compare the protein content of SF from patients with a short-term metal-on-metal hip implant associated with a pseudotumor and patients with a long-term metal-on-polyethylene hip implant associated with periprosthetic osteolysis...
January 20, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29352701/bailout-surgical-explantation-of-a-transcatheter-valve-in-valve-for-subacute-thrombosis-when-there-is-no-time-for-anticoagulation-case-report-and-literature-review
#3
Francesco Notaristefano, Matteo Rocco Reccia, Salvatore Notaristefano, Roberto Annunziata, Rocco Sclafani, Giuseppe Ambrosio, Claudio Cavallini
Trancatheter heart valve (THV) thrombosis is effectively treated with anticoagulation but alternative therapies are required when a faster gradient reduction is needed. Open heart surgery has been rarely performed due to the high perioperative mortality and only five cases have been described so far. Here we describe a case of emergent surgical explantation for THV thrombosis after a valve-in-valve. A 67years old man underwent transcatheter aortic valve implantation for a failed surgical bioprosthesis Epic 21mm (St...
December 13, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29352699/computed-tomography-ct-assessment-of-the-membranous-septal-anatomy-prior-to-transcatheter-aortic-valve-replacement-tavr-with-the-balloon-expandable-sapien-3-valve
#4
Brett A Oestreich, Mackenzie Mbai, Sergey Gurevich, Prabhjot S Nijjar, Selcuk Adabag, Stefan Bertog, Rosemary Kelly, Santiago Garcia
OBJECTIVES: The lower limit of the membranous septum (MS) is considered an anatomic landmark for the emergence of the Bundle of His into the left ventricle. Computed tomography (CT) assessment of MS anatomy may provide useful information about the risk of conduction abnormalities following transcatheter aortic valve replacement (TAVR). METHODS AND RESULTS: The study included 102 consecutive patients undergoing TAVR with the Edwards Sapien 3 (S3) valve. Using pre-TAVR CT and post-procedure angiography we evaluated for the presence of calcium in the left ventricular outflow tract (LVOT), calcium depth (CD), implantation depth (ID) and MS length...
December 27, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29352690/diagnostic-utility-of-histological-analysis-for-detecting-ongoing-infection-during-two-stage-revision-arthroplasty-in-patients-with-inflammatory-arthritis
#5
Jaiben George, Yaxia Zhang, Michael Jawad, Mhamad Faour, Alison K Klika, Thomas W Bauer, Carlos A Higuera
BACKGROUND: Surgeons often rely on intra-operative histology (frozen sections [FS]) to determine the next step in surgical management during the second stage (re-implantation surgery) of 2-stage revision arthroplasty. The purpose of the study is to assess the accuracy of permanent sections (PS) and FS in the diagnosis of persistent infection during re-implantation in patients with an inflammatory arthritis. METHODS: From 2001 to 2016, 47 planned second-stage revision total hip arthroplasty and total knee arthroplasty in patients with inflammatory arthritis were identified...
December 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29352684/long-term-outcome-of-hip-arthroplasty-in-the-setting-of-pigmented-villonodular-synovitis
#6
Meagan E Tibbo, Cody C Wyles, Peter S Rose, Franklin H Sim, Matthew T Houdek, Michael J Taunton
BACKGROUND: Pigmented villonodular synovitis (PVNS) is a rare, benign, painful proliferation of the synovium previously treated successfully with total hip arthroplasty (THA). Published results come from small series; therefore, the purpose of this study is to investigate the outcomes of THA in the setting of PVNS. METHODS: We identified 25 patients with histologically confirmed, diffuse PVNS who underwent THA between 1971 and 2013. Mean follow-up and age was 10 years and 39 years...
December 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29352681/no-consensus-for-femoral-head-impaction-technique-in-surgeon-education-materials-from-orthopedic-implant-manufacturers
#7
Brian J McGrory, Eric Ng
BACKGROUND: Prior studies indicate that one factor that may contribute to total hip arthroplasty failure due to mechanically assisted crevice corrosion at the femoral head-trunnion junction is the method of femoral head fixation. METHODS: Up-to-date on-line surgical technique guides describing fixation of the prosthetic femoral head of common implants of the 4 largest manufacturers as well as 2 minor manufacturers were identified. The information given regarding preparation and fixation of the femoral head was evaluated and compared...
December 30, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29352637/the-ability-of-topical-and-systemic-statins-to-increase-osteogenesis-around-dental-implants-a-systematic-review-of-histomorphometric-outcomes-in-animal-studies
#8
REVIEW
V Moraschini, D C F Almeida, J A Calasans-Maia, M Diuana Calasans-Maia
The purpose of this systematic review was to evaluate the quantitative histomorphometric outcomes of animal studies investigating statins as a pro-osteogenic agent to enhance the osseointegration of dental implants. Some animal studies have suggested a beneficial action of statins on bone tissue. Electronic and manual literature searches, without date or language restriction, ​​were performed by two independent review authors up to February 2017. Eligibility criteria included animal trials quantitatively analysing the pro-osteogenic effect of statins on dental implants...
January 15, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29352461/clinical-and-microbiological-evaluation-of-the-effect-of-lactobacillus-reuteri-in-the-treatment-of-mucositis-and-peri-implantitis-a-triple-blind-randomized-clinical-trial
#9
M Galofré, D Palao, M Vicario, J Nart, D Violant
BACKGROUND AND OBJECTIVE: Oral probiotics appear to improve the treatment of periodontal diseases but there is limited evidence on their efficacy in the treatment of peri-implant diseases. The objective of the present study was to evaluate, clinically and microbiologically, the effect of the oral probiotic, Lactobacillus reuteri Prodentis, as adjuvant to non-surgical mechanical therapy in implants with mucositis or peri-implantitis, placed in patients with a history of periodontal disease...
January 19, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29352347/autologous-cell-based-therapy-for-treatment-of-large-bone-defects-from-bench-to-bedside
#10
REVIEW
R Verboket, M Leiblein, C Seebach, C Nau, M Janko, M Bellen, H Bönig, D Henrich, I Marzi
OBJECTIVES: Reconstruction of long segmental bone defects is demanding for patients and surgeons, and associated with long-term treatment periods and substantial complication rates in addition to high costs. While defects up to 4-5 cm length might be filled up with autologous bone graft, heterologous bone from cadavers, or artificial bone graft substitutes, current options to reconstruct bone defects greater than 5 cm consist of either vascularized free bone transfers, the Masquelet technique or the Ilizarov distraction osteogenesis...
January 19, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29352303/perfusion-decellularization-of-a-human-limb-a-novel-platform-for-composite-tissue-engineering-and-reconstructive-surgery
#11
Mattia Francesco Maria Gerli, Jacques Paul Guyette, Daniele Evangelista-Leite, Brian Burns Ghoshhajra, Harald Christian Ott
Muscle and fasciocutaneous flaps taken from autologous donor sites are currently the most utilized approach for trauma repair, accounting annually for 4.5 million procedures in the US alone. However, the donor tissue size is limited and the complications related to these surgical techniques lead to morbidities, often involving the donor sites. Alternatively, recent reports indicated that extracellular matrix (ECM) scaffolds boost the regenerative potential of the injured site, as shown in a small cohort of volumetric muscle loss patients...
2018: PloS One
https://www.readbyqxmd.com/read/29352218/nutritional-deficiencies-and-bone-metabolism-after-endobarrier-in-obese-type-2-patients-with-diabetes
#12
Nuria Vilarrasa, Alexandra Fabregat, Silvia Toro, Amador García Gordejuela, Anna Casajoana, Mónica Montserrat, Pilar Garrido, Rafael López-Urdiales, Núria Virgili, Alejandra Planas-Vilaseca, Andreu Simó-Servat, Jordi Pujol
Endobarrier® is a minimally invasive, reversible endoscopic treatment for obesity. It provokes malabsorption along 60 cm of the small intestine, which can contribute to the development of vitamin deficiencies and to changes in bone mineral density (BMD). To determine the prevalence of nutrient deficiencies, changes in body composition and BMD during the first year after Endobarrier® placement. Twenty-one patients with type 2 diabetes met inclusion criteria. Levels of vitamins, micro and macronutrients were assessed prior and at 1, 3 and 12 months post-operatively...
January 19, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29352147/pre-conception-maternal-erythrocyte-saturated-to-unsaturated-fatty-acid-ratio-predicts-pregnancy-after-natural-cycle-frozen-embryo-transfer
#13
Christopher C Onyiaodike, Heather M Murray, Ruiqi Zhang, Barbara J Meyer, Fiona Jordan, E Ann Brown, Robert J B Nibbs, Helen Lyall, Naveed Sattar, Scott M Nelson, Dilys J Freeman
The environment for embryo implantation and fetal growth and development is affected by maternal nutritional, metabolic and health status. The aim of this prospective, cohort study was to test whether plasma metabolic and inflammatory biomarkers can predict pregnancy resulting from in vitro fertilisation (IVF). Women with a natural menstrual cycle undergoing frozen embryo transfer (FET) were recruited and fasting baseline blood samples were collected a mean of 3.4 days prior to the luteinising hormone (LH) surge and a non-fasting blood sample was taken on the day of FET...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352008/incidence-predictors-and-clinical-outcomes-of-residual-stenosis-after-aortic-valve-in-valve
#14
Sabine Bleiziffer, Magdalena Erlebach, Matheus Simonato, Philippe Pibarot, John Webb, Lukas Capek, Stephan Windecker, Isaac George, Jan-Malte Sinning, Eric Horlick, Massimo Napodano, David M Holzhey, Petur Petursson, Alfredo Cerillo, Nikolaos Bonaros, Enrico Ferrari, Mauricio G Cohen, Giselle Baquero, Tara L Jones, Ankur Kalra, Michael J Reardon, Adnan Chhatriwalla, Vasco Gama Ribeiro, Sami Alnasser, Nicolas M Van Mieghem, Christian Jörg Rustenbach, Joachim Schofer, Santiago Garcia, Tobias Zeus, Didier Champagnac, Raffi Bekeredjian, Ran Kornowski, Rüdiger Lange, Danny Dvir
OBJECTIVE: We aimed to analyse the incidence of prosthesis-patient mismatch (PPM) and elevated gradients after aortic valve in valve (ViV), and to evaluate predictors and associations with clinical outcomes of this adverse event. METHODS: A total of 910 aortic ViV patients were investigated. Elevated residual gradients were defined as ≥20 mm Hg. PPM was identified based on the indexed effective orifice area (EOA), measured by echocardiography, and patient body mass index (BMI)...
January 19, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29351870/de-novo-generation-in-an-in-vivo-rat-model-and-biomechanical-characterization-of-autologous-transplants-for-ligament-and-tendon-reconstruction
#15
Marc Soubeyrand, Elisabeth Laemmel, Nathalie Maurel, Amadou Diop, Thierry Lazure, Jacques Duranteau, Eric Vicaut
BACKGROUND: Surgical reconstruction of ligaments and tendons is frequently required in clinical practice. The commonly used autografts, allografts, or synthetic transplants present limitations in terms of availability, biocompatibility, cost, and mechanical properties that tissue bioengineering aims to overcome. It classically combines an exogenous extracellular matrix with cells, but this approach remains complex and expensive. Using a rat model, we tested a new bioengineering strategy for the in vivo and de novo generation of autologous grafts without the addition of extracellular matrix or cells, and analyzed their biomechanical and structural properties...
December 14, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29351801/high-expression-of-tmem40-is-associated-with-the-malignant-behavior-and-tumorigenesis-in-bladder-cancer
#16
Zhen-Fei Zhang, Han-Rong Zhang, Qing-Yan Zhang, Shu-Yu Lai, Yu-Zhen Feng, Yi Zhou, Si-Rong Zheng, Rong Shi, Jue-Yu Zhou
BACKGROUND: Bladder cancer (BCa) is one of the most common cancers in the urinary system among the world. Previous studies suggested that TMEM40 expression level was significantly associated with clinicopathological parameters including histological grade, clinical stage and pT status of bladder cancer. However, the molecular mechanism of TMEM40 in BCa remains poorly understood. METHODS: Real-time quantitative RT-PCR (qRT-PCR) and western blot (WB) were used to examine the expression levels of TMEM40 in BCa tissues, paired non-cancer tissues and cell lines...
January 19, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29351746/concomitant-glenohumeral-injuries-in-neer-type-ii-distal-clavicle-fractures
#17
Tobias Helfen, Georg Siebenbürger, Florian Haasters, Wolfgang Böcker, Ben Ockert
BACKGROUND: To identify the prevalence of concomitant glenohumeral injuries in surgically treated Neer type II distal clavicle fractures and relate its clinical importance. METHODS: Between 11/2011 and 11/2015 41 patients, suffering from a displaced and unstable distal clavicle fracture were included. 20 patients (group 1) received surgical treatment by means of plate osteosynthesis in combination with an arthroscopically assisted coraco-clavicular ligament augmentation...
January 19, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29351695/reasons-for-failure-of-systemic-to-pulmonary-artery-shunts-in-neonates
#18
Keti Vitanova, Cornelius Leopold, Jelena Pabst von Ohain, Cordula Wolf, Elisabeth Beran, Rüdiger Lange, Julie Cleuziou
BACKGROUND:  Systemic-to-pulmonary artery shunt placement is an established palliative procedure for congenital heart disease. Although it is thought to be a simple operation, it is associated with significant morbidity and mortality. METHODS:  Data for all neonates who underwent surgery for a systemic-to-pulmonary artery shunt between 2000 and 2016 were reviewed. The study endpoints were shunt failure and shunt-related mortality. Shunt failure was defined as a shunt dysfunction because of thrombosis or stenosis requiring intervention or reoperation; shunt mortality was defined as death because of a shunt dysfunction...
January 19, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29351671/a-novel-non-invasive-method-for-evaluating-electroencephalograms-on-laying-hens
#19
Krista N Eberle, Michael P Martin, Sanjay Shah, Ramon D Malheiros, Kimberly A Livingston, Kenneth E Anderson
The use of electroencephalograms (EEG) to study the avian brain relative to behavior was conducted as early as the 1960's. EEG readings, combined with visual cues, provide the ability to elucidate and correlate behaviors to neurological and physiological changes in a chicken. The use of EEG recordings in animal models require access to the brain to implant electrodes. Having the ability to observe EEG activity on sensible birds without surgical implantation could broaden the research in this area and give further insight related to the hen's state of awareness...
January 17, 2018: Poultry Science
https://www.readbyqxmd.com/read/29351652/early-results-in-flow-diverter-sizing-by-computational-simulation-quantification-of-size-change-and-simulation-error-assessment
#20
Ana Paula Narata, Jordi Blasco, Luis San Roman, Juan Miguel Macho, Hector Fernandez, Raquel Kale Moyano, Renaud Winzenrieth, Ignacio Larrabide
BACKGROUND: Sizing of flow diverters (FDs) stent in the treatment of intracranial aneurysms is a challenging task due to the change of stent length after implantation. OBJECTIVE: To quantify the size change and assess the error in length prediction in 82 simulated FD deployments. METHODS: Eighty-two consecutive patients treated with FDs were retrospectively analyzed. Implanted FD length was measured from angiographic images and compared to the nominal sizes of the implanted device...
January 17, 2018: Operative Neurosurgery (Hagerstown, Md.)
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