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https://www.readbyqxmd.com/read/28528349/high-wear-resistance-of-femoral-components-coated-with-titanium-nitride-a-retrieval-analysis
#1
Christian Fabry, Carmen Zietz, Axel Baumann, Reinhard Ehall, Rainer Bader
PURPOSE: The objective of this study was to evaluate the in vivo wear resistance of cobalt-chromium femoral components coated with titanium nitride (TiN). Our null hypothesis was that the surface damage and the thickness of the TiN coating do not correlate with the time in vivo. METHODS: Twenty-five TiN-coated bicondylar femoral retrievals with a mean implantation period of 30.7 ± 11.7 months were subjected to an objective surface damage analysis with a semi-quantitative assessment method...
May 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28526756/restricted-intra-embryonic-origin-of-bona-fide-hematopoietic-stem-cells-in-the-chicken
#2
Laurent Yvernogeau, Catherine Robin
Hematopoietic stem cells (HSCs), responsible for blood cell production, are generated during embryonic development. Human and chicken embryos share features that pose the chicken as a reliable and accessible alternative model to study developmental hematopoiesis. However, the existence of HSCs has never been formally proven in chicken embryos. Here, we established a complete cartography and quantification of hematopoietic cells in the aorta during development. We demonstrated the existence of bona fide HSCs, originating from the chicken embryo aorta (and not the yolk sac, allantois or head), through an in vivo transplantation assay...
May 19, 2017: Development
https://www.readbyqxmd.com/read/28525878/vaccine-development-for-respiratory-syncytial-virus
#3
REVIEW
Barney S Graham
Respiratory syncytial virus (RSV) is an important and ubiquitous respiratory pathogen for which no vaccine is available notwithstanding more than 50 years of effort. It causes the most severe disease at the extremes of age and in settings of immunodeficiency. Although RSV is susceptible to neutralizing antibody, it has evolved multiple mechanisms of immune evasion allowing it to repeatedly infect people despite relatively little genetic diversity. Recent breakthroughs in determining the structure and antigenic content of the fusion (F) glycoprotein in its metastable untriggered prefusion form (pre-F) and the stable rearranged postfusion form (post-F) have yielded vaccine strategies that can induce potent neutralizing antibody responses and effectively boost pre-existing neutralizing activity...
May 16, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28525648/the-role-of-omics-in-the-application-of-adverse-outcome-pathways-for-chemical-risk-assessment
#4
Erica K Brockmeier, Geoff Hodges, Thomas H Hutchinson, Emma Butler, Markus Hecker, Knut Erik Tollefsen, Natalia Garcia-Reyero, Peter Kille, Dörthe Becker, Kevin Chipman, John Colbourne, Timothy W Collette, Andrew Cossins, Mark Cronin, Peter Graystock, Steve Gutsell, Dries Knapen, Ioanna Katsiadaki, Anke Lange, Stuart Marshall, Stewart F Owen, Edward J Perkins, Stewart Plaistow, Anthony Schroeder, Daisy Taylor, Mark Viant, Gerald Ankley, Francesco Falciani
In conjunction with the second International Environmental Omics Symposium (iEOS) conference, held at the University of Liverpool (UK) in September 2014, a workshop was held to bring together experts in toxicology and regulatory science from academia, government and industry. The purpose of the workshop was to review the specific roles that high-content omics datasets (e.g., transcriptomics, metabolomics, lipidomics, and proteomics) can hold within the adverse outcome pathway (AOP) framework for supporting ecological and human health risk assessments...
May 19, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28525644/risk-factors-and-clinical-outcomes-of-breakthrough-yeast-bloodstream-infections-in-patients-with-hematological-malignancies-in-the-era-of-newer-antifungal-agents
#5
Si-Hyun Kim, Jae-Ki Choi, Sung-Yeon Cho, Hyo-Jin Lee, Sun Hee Park, Su-Mi Choi, Dong-Gun Lee, Jung-Hyun Choi, Jin-Hong Yoo, Jong-Wook Lee
Although yeast bloodstream infections (BSIs) are increasingly being reported in patients with hematological malignancies undergoing antifungal therapy, clinical information regarding breakthrough infections is scarce. The aim of this study was to determine the risk factors for and clinical outcomes of breakthrough yeast BSIs in patients with hematological malignancies in the era of newer antifungal agents. Between 2011 and 2014, all consecutive patients with hematological malignancies who developed yeast BSIs were included in a case-control study wherein breakthrough infections (cases) and de novo infections (controls) were compared...
May 19, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28525273/directional-fluid-gating-by-janus-membranes-with-heterogeneous-wetting-properties-for-selective-oil-water-separation
#6
Prashant Gupta, Balasubramanian Kandasubramanian
The rising oil seepage accidents evolved into a global issue necessitating immediate counter measure to abridge its catastrophic repercussions on sensitive marine ecosystem urging innovative techniques for effective oil/water separation. Here, we report surface tailored wettability modified superhydrophobic/superoleophilic Janus membrane by impregnating non-ionic surfactant stabilized nano-sized polytetrafluoroethylene (PTFE) dispersion polymerized via non-fluorinated processing aid onto cotton substrate using Meyer rod coating technique, exhibiting excellent separation efficiency up to 98% with various petroleum products and retaining its intrinsic properties for at least 30 recurrences...
May 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28524908/cancer-related-pain-assessment-and-management-with-putting-evidence-into-practice-interventions%C3%A2
#7
Jeannine M Brant, Linda H Eaton, Margaret M Irwin
Many evidence-based pharmacologic and nonpharmacologic strategies exist to manage acute, chronic, refractory, and breakthrough cancer pain. This supplement includes an overview of cancer pain assessment, which is the foundation of pain management. Following the overview are four systematic reviews covering 462 studies on cancer pain management. The Oncology Nursing Society Putting Evidence Into Practice (PEP) expert panel summarized the evidence and provided recommendations for practice based on PEP guidelines...
June 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28524907/breakthrough-cancer-pain-a-systematic-review-of-pharmacologic-management%C3%A2
#8
Jeannine M Brant, Barbara B Rodgers, Eva Gallagher, Thiruppavai Sundaramurthi
BACKGROUND: Breakthrough cancer pain (BtCP), defined as a transient exacerbation of pain that occurs in conjunction with well-controlled background pain, is a common and burdensome problem in patients with cancer.
. OBJECTIVES: The aim of this systematic review is to identify evidence-based pharmacologic modalities for adequate management of BtCP. 
. METHODS: PubMed and CINAHL® databases were searched to identify literature regarding pharmacologic strategies for BtCP published from January 2006 to June 2016...
June 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28523130/the-development-of-uniportal-video-assisted-thoracoscopic-surgery-in-s%C3%A3-o-paulo-from-diagnosis-to-lobectomy
#9
Alexandre de Oliveira, Thais Amarante P P Couto
BACKGROUND: The use of uniportal video-assisted thoracoscopic surgery (VATS) has been increasing worldwide. Our main goal was to describe the evolution of uniportal surgery in the biggest private hospital in Latin America that is located in São Paulo, Brazil. METHODS: This descriptive and retrospective study included patients who underwent uniportal VATS in the thoracic surgical department of Beneficencia Portuguesa Hospital, after being referred to our team to undergo the aforementioned procedure within the period from February 2012 to March 2016...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522442/bcl2-expression-in-dlbcl-reappraisal-of-immunohistochemistry-with-new-criteria-for-therapeutic-biomarker-evaluation
#10
Naoko Tsuyama, Seiji Sakata, Satoko Baba, Yuko Mishima, Noriko Nishimura, Kyoko Ueda, Masahiro Yokoyama, Yasuhito Terui, Kiyohiko Hatake, Masanobu Kitagawa, Naoki Ishizuka, Naoto Tomita, Kengo Takeuchi
Overexpression of the BCL2 is associated with a poor prognosis in diffuse large B-cell lymphoma (DLBCL). The assessment of MYC immunohistochemistry (IHC) is becoming optimized, whereas the criteria for BCL2 positivity are highly variable. Furthermore, data on the frequency and prognostic value of BCL2 positivity are conflicting. We aimed to evaluate BCL2 expression by IHC and assess the prognostic significance of the histopathologically-scored BCL2 expression in 456 patients with DLBCL uniformly treated with standard immunochemotherapy (rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone; R-CHOP)...
May 18, 2017: Blood
https://www.readbyqxmd.com/read/28522213/harnessing-self-assembled-peptide-nanoparticles-in-epitope-vaccine-design
#11
REVIEW
Manica Negahdaripour, Nasim Golkar, Nasim Hajighahramani, Sedigheh Kianpour, Navid Nezafat, Younes Ghasemi
Vaccination has been one of the most successful breakthroughs in medical history. In recent years, epitope-based subunit vaccines have been introduced as a safer alternative to traditional vaccines. However, they suffer from limited immunogenicity. Nanotechnology has shown value in solving this issue. Different kinds of nanovaccines have been employed, among which virus-like nanoparticles (VLPs) and self-assembled peptide nanoparticles (SAPNs) seem very promising. Recently, SAPNs have attracted special interest due to their unique properties, including molecular specificity, biodegradability, and biocompatibility...
May 15, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28522145/wnt-signaling-a-novel-pathway-regulating-blood-pressure-state-of-the-art-review
#12
REVIEW
Maen D Abou Ziki, Arya Mani
Recent antihypertensive trials show conflicting results on blood pressure (BP) targets in patient populations with different metabolic profiles, with lowest benefit from tight BP control observed in patients with type 2 diabetes mellitus. This paradox could arise from the heterogeneity of study populations and underscores the importance of precision medicine initiatives towards understanding and treating hypertension. Wnt signaling pathways and genetic variations in its signaling peptides have been recently associated with metabolic syndrome, hypertension and diabetes, generating a breakthrough for advancement of precision medicine in the field of hypertension...
May 4, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28521707/biologic-agents-in-systemic-dermatotherapy-cutaneous-and-systemic-side-effects
#13
George Badavanis, Efstathia Pasmatzi, Alexandra Monastirli, Dionysios Tsambaos
The recent significant breakthroughs in the understanding of the pathogenetic mechanisms of psoriasis and other immune-mediated inflammatory disorders, have led to the emergence of a wide array of biologic agents or biologics, that are especially designed to target selective intracellular or extracellular components and pathways of the dysregulated immune response. These targeted biologic agents have altered the landscape in dermatotherapy aiming to offer higher therapeutic efficacy and an alternative in patients who either failed on conventional systemic regimens or have no other therapeutic options...
May 18, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28521694/bioresponsive-injectable-hydrogels-for-on-demand-drug-release-and-tissue-engineering
#14
Arti Vashist, Ajeet Kaushik, Kayla Alexis, Rahul Dev Jayant, Vidya Sagar, Atul Vashist, Madhavan Nair
The emergence of injectable hydrogels as biomaterials has been a revolutionary breakthrough in the field of on-demand drug delivery and tissue engineering. The promising features of these systems include their biodegradability, biocompatibility, permeability, ease of the surgical implantation, and most importantly exhibit minimally invasiveness. These hydrogels have been explored as sustained and on demand release carriers for the various bioactive agents, growth factors, live cells, various hydrophobic drugs and as extracellular matrices for tissue engineering...
May 16, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28521663/towards-a-generic-procedure-for-the-detection-of-relevant-contaminants-from-waste-electric-and-electronic-equipment-weee-in-plastic-food-contact-materials-review-and-selection-of-key-parameters
#15
Franky Puype, Jiří Samsonek, Věra Vilímková, Šárka Kopečková, Andrea Ratiborská, Jan Knoop, Marion Egelkraut-Holtus, Markus Ortlieb, Uwe Oppermann
Recently, traces of brominated flame retardants (BFRs) have been detected in black plastic food contact materials (FCMs) indicating the presence of recycled plastics, mainly coming from waste electric and electronic equipment (WEEE) as BFRs are one of the main additives in electric applications. In order to evaluate efficiently and preliminary in situ the presence of WEEE in plastic FCMs, a generic procedure for evaluation of WEEE presence in plastic FCMs by using defined parameters having each an associated importance level has been proposed...
May 18, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28521025/mechanism-of-as2o3-induced-action-potential-prolongation-and-using-hips-cms-to-evaluate-the-rescue-efficacy-of-drugs-with-different-rescue-mechanism
#16
Meng Yan, Lifang Feng, Yanhui Shi, Junnan Wang, Yan Liu, Fengmei Li, Baoxin Li
Arsenic trioxide (As2O3) has been verified as a breakthrough in the management of acute promyelocytic leukemia in recent decades. However, cardiotoxicity, especially long QT syndrome (LQTS) has become the most important issue during As2O3 treatment. The characterized mechanisms behind this adverse effect are inhibition of cardiac hERG channel trafficking and increase of cardiac calcium currents. In our study, we found a new pathway underlying As2O3-induced cardiotoxicity that As2O3 accelerates lysosomal degradation of hERG on plasma membrane after using brefeldin A (BFA) to block protein trafficking...
May 17, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28520273/efficacy-of-a-targeted-drug-delivery-on-demand-bolus-option-for-chronic-pain
#17
Robert B Bolash, Tariq Niazi, Meera Kumari, Gerges Azer, Nagy Mekhail
BACKGROUND AND OBJECTIVES: Intrathecal targeted drug delivery systems historically required a physician's office visits for dose adjustment to manage fluctuating pain. A wireless device now enables patients to supplement their basal intrathecal infusion with a programmed on-demand bolus dose. We sought to quantify the change in oral breakthrough opioid need associated with the use of an intrathecal bolus in comparison to those treated with the basal infusion alone. METHODS: Demographic, dosage, bolus usage and longevity data were extracted from the historical medical record of 69 patients (18/51 bolus/non-bolus) followed continuously at our center...
May 18, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28518059/recent-omics-technologies-and-their-emerging-applications-for-personalised-medicine
#18
REVIEW
Dong-Hyuk Kim, Young-Sook Kim, Nam-Il Son, Chan-Koo Kang, Ah-Ram Kim
A major objective of 'omics' technologies is to understand genetic causality of complex traits of human diseases. High-throughput omics technologies and their application to medicine open up remarkable opportunities for realising optimised medical treatment for individuals. Because many major breakthrough and discoveries in this field have been driven by the development of new omics technologies, in this review, the authors aim to provide an in-depth description of their underlying principles as a foundation of developing another new omics technology, and to introduce their emerging applications for personalised medicine...
June 2017: IET Systems Biology
https://www.readbyqxmd.com/read/28516795/a-comprehensive-guide-to-telocytes-and-their-great-potential-in-cardiovascular-system
#19
I Kucybala, P Janas, S Ciuk, W Cholopiak, W Klimek-Piotrowska, M K Holda
Telocytes, a recently discovered type of interstitial cells, have a very distinctive morphology - the small cell body with long extensions, named telopodes. In our review, apart from introducing general aspects of telocytes, we focus on properties, functions and future potential of those cells in cardiovascular system. However, physiological functions of telocytes in cardiovascular system are still regarded as quite enigmatic. Previous studies claim that they play a role in organogenesis and regeneration, bioelectrical signalling, mechanoelectrical coupling, anti-oxidative protection, angiogenesis and regulation of blood flow...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28516343/therapeutic-dormancy-to-delay-postsurgical-glioma-recurrence-the-past-present-and-promise-of-focal-hypothermia
#20
REVIEW
Didier Wion
Surgery precedes both radiotherapy and chemotherapy as the first-line therapy for glioma. However, despite multimodal treatment, most glioma patients die from local recurrence in the resection margin. Glioma surgery is inherently lesional, and the response of brain tissue to surgery includes hemostasis, angiogenesis, reactive gliosis and inflammation. Unfortunately, these processes are also associated with tumorigenic side-effects. An increasing amount of evidence indicates that the response to a surgery-related brain injury is hijacked by residual glioma cells and participates in the local regeneration of tumor tissues at the resection margin...
May 17, 2017: Journal of Neuro-oncology
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