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https://www.readbyqxmd.com/read/28103165/burn-wound-healing-present-concepts-treatment-strategies-and-future-directions
#1
A Oryan, E Alemzadeh, A Moshiri
Burns are the most extensive forms of soft tissue injuries occasionally resulting in extensive and deep wounds and death. Burns can lead to severe mental and emotional distress, because of excessive scarring and skin contractures. Treatment of burns has always been a difficult medical problem and many different methods have been used to treat such injuries, locally. Biofilms are a collection of microorganisms that delay wound healing. One of the new methods of prevention and treatment of burn wound infections is application of antimicrobials, which act on biofilms and prevent the wound infection...
January 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28101680/application-of-tissue-engineered-bone-grafts-for-alveolar-cleft-osteoplasty-in-a-rodent-model
#2
Paula Korn, Maria Hauptstock, Ursula Range, Christiane Kunert-Keil, Winnie Pradel, Günter Lauer, Matthias C Schulz
OBJECTIVES: The clinical standard for alveolar cleft osteoplasty is augmentation with autologous bone being available in limited amounts and might be associated with donor site morbidity. The aim of the present study was the creation of tissue-engineered bone grafts and their in vivo evaluation regarding their potential to promote osteogenesis in an alveolar cleft model. MATERIALS AND METHODS: Artificial bone defects with a diameter of 3.3 mm were created surgically in the palate of 84 adult Lewis rats...
January 18, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28101640/labia-minora-hypertrophy-causes-impact-on-women-s-health-and-treatment-options
#3
Caterina Gulia, Andrea Zangari, Vito Briganti, Zhoobin H Bateni, Alessandro Porrello, Roberto Piergentili
INTRODUCTION AND HYPOTHESIS: We provide a review of the literature about the onset and development of hypertrophy of the labia minora, together with some expert opinions on the appropriateness of labiaplasty. METHODS: We searched PubMed and used popular search engines, with a greater emphasis on the physiology and hormone-mediated metabolism of these structures, and less emphasis on their surgical treatment. RESULTS: We describe major embryological, cytological, and biochemical features of this anatomical part and summarize the clinical aspects of its hypertrophy, evaluating types of discomfort reported by women and the medical treatments available...
January 18, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28100201/developing-a-practice-guideline-for-the-occupational-health-services-by-using-a-community-of-practice-approach-a-process-evaluation-of-the-development-process
#4
Lydia Kwak, Charlotte Wåhlin, Kjerstin Stigmar, Irene Jensen
BACKGROUND: One way to facilitate the translation of research into the occupational health service practice is through clinical practice guidelines. To increase the implementability of guidelines it is important to include the end-users in the development, for example by a community of practice approach. This paper describes the development of an occupational health practice guideline aimed at the management of non-specific low back pain (LBP) by using a community of practice approach...
January 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28099503/3d-functional-corneal-stromal-tissue-equivalent-based-on-corneal-stromal-stem-cells-and-multi-layered-silk-film-architecture
#5
Chiara E Ghezzi, Benedetto Marelli, Fiorenzo G Omenetto, James L Funderburgh, David L Kaplan
The worldwide need for human cornea equivalents continues to grow. Few clinical options are limited to allogenic and synthetic material replacements. We hypothesized that tissue engineered human cornea systems based on mechanically robust, patterned, porous, thin, optically clear silk protein films, in combination with human corneal stromal stem cells (hCSSCs), would generate 3D functional corneal stroma tissue equivalents, in comparison to previously developed 2D approaches. Silk film contact guidance was used to control the alignment and distribution of hCSSCs on RGD-treated single porous silk films, which were then stacked in an orthogonally, multi-layered architecture and cultured for 9 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28099125/meningococcal-acwy-vaccine-uptake-and-awareness-among-student-freshers-enrolled-at-northern-ireland-universities
#6
Peter J A Moore, B Cherie Millar, John E Moore
A new MenACWY conjugate meningococcal vaccination programme was introduced in Northern Ireland (NI) in August 2015, for 13-18 year olds, as well as for first-time university entrants up to 25 years. This reflected the response made by Public Health England, due to the recent rapid increase of meningococcal group W (MenW) disease and on advice of the UK Joint Committee on Vaccination and Immunisation (JCVI). The aims of this study were to evaluate (i) the uptake of the MenACWY vaccine among first-time university students, (ii) vaccine and meningitis awareness, (iii) optimal communication modalities via a multidisciplinary team (MDT) model and (iv) current international vaccination policies relating to non-UK students...
January 18, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28098771/breast-cancer-brain-metastases-clonal-evolution-in-clinical-context
#7
REVIEW
Jodi M Saunus, Amy E McCart Reed, Zhun Leong Lim, Sunil R Lakhani
Brain metastases are highly-evolved manifestations of breast cancer arising in a unique microenvironment, giving them exceptional adaptability in the face of new extrinsic pressures. The incidence is rising in line with population ageing, and use of newer therapies that stabilise metastatic disease burden with variable efficacy throughout the body. Historically, there has been a widely-held view that brain metastases do not respond to circulating therapeutics because the blood-brain-barrier (BBB) restricts their uptake...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098598/science-of-intracrinology-in-postmenopausal-women
#8
Fernand Labrie, Alain Bélanger, Georges Pelletier, Céline Martel, David F Archer, Wulf H Utian
OBJECTIVE: To illustrate the marked differences between classical endocrinology that distributes hormones to all tissues of the body through the bloodstream and the science of intracrinology, whereby each cell of each peripheral tissue makes a small and appropriate amount of estrogens and androgens from the inactive precursor dehydroepiandrosterone (DHEA), DHEA being mainly of adrenal origin. Because only the inactivated sex steroids are released in the blood, influence in the other tissues is avoided...
January 16, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28098320/versatile-tissue-lasers-based-on-high-q-fabry-p%C3%A3-rot-microcavities
#9
Yu-Cheng Chen, Qiushu Chen, Tingting Zhang, Wenjie Wang, Xudong Fan
Biolasers are an emerging technology for next generation biochemical detection and clinical applications. Progress has recently been made to achieve lasing from biomolecules and single living cells. Tissues, which consist of cells embedded in an extracellular matrix, mimic more closely the actual complex biological environment in a living body and therefore are of more practical significance. Here, we developed a highly versatile tissue laser platform, in which tissues stained with fluorophores are sandwiched in a high-Q Fabry-Pérot microcavity...
January 18, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28097682/evaluation-of-perforated-demineralized-dentin-scaffold-on-bone-regeneration-in-critical-size-sheep-iliac-defects
#10
Md Arafat Kabir, Masaru Murata, Toshiyuki Akazawa, Kaoru Kusano, Katsuhisa Yamada, Manabu Ito
OBJECTIVES: Regenerating critical-size bone injury is a major problem that continues to inspire the design of new graft materials. Therefore, tissue engineering has become a novel approach for targeting bone regeneration applications. Human teeth are a rich source of stem cells, matrix, trace metal ions, and growth factors. A vital tooth-derived demineralized dentin matrix is acid-insoluble and composed of cross-linked collagen with growth factors. In this study, we recycled human non-functional tooth into a unique geometric dentin scaffold, entitled perforated root-demineralized dentin matrix (PR-DDM)...
January 17, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28097523/intravascular-ultrasound-characterization-of-a-tissue-engineered-vascular-graft-in-an-ovine-model
#11
Victoria K Pepper, Elizabeth S Clark, Cameron A Best, Ekene A Onwuka, Tadahisa Sugiura, Eric D Heuer, Lilamarie E Moko, Shinka Miyamoto, Hideki Miyachi, Darren P Berman, Sharon L Cheatham, Joanne L Chisolm, Toshiharu Shinoka, Christopher K Breuer, John P Cheatham
Patients who undergo implantation of a tissue-engineered vascular graft (TEVG) for congenital cardiac anomalies are monitored with echocardiography, followed by magnetic resonance imaging or angiography when indicated. While these methods provide data regarding the lumen, minimal information regarding neotissue formation is obtained. Intravascular ultrasound (IVUS) has previously been used in a variety of conditions to evaluate the vessel wall. The purpose of this study was to evaluate the utility of IVUS for evaluation of TEVGs in our ovine model...
January 17, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28097053/in-vitro-effect-of-direct-current-electrical-stimulation-on-rat-mesenchymal-stem-cells
#12
Sahba Mobini, Liudmila Leppik, Vishnu Thottakkattumana Parameswaran, John Howard Barker
BACKGROUND: Electrical stimulation (ES) has been successfully used to treat bone defects clinically. Recently, both cellular and molecular approaches have demonstrated that ES can change cell behavior such as migration, proliferation and differentiation. METHODS: In the present study we exposed rat bone marrow- (BM-) and adipose tissue- (AT-) derived mesenchymal stem cells (MSCs) to direct current electrical stimulation (DC ES) and assessed temporal changes in osteogenic differentiation...
2017: PeerJ
https://www.readbyqxmd.com/read/28096709/communication-pitfalls-of-traditional-history-and-physical-write-up-documentation
#13
Jeffrey L Brown
BACKGROUND: An unofficial standardized "write-up" outline is commonly used for documenting history and physical examinations, giving oral presentations, and teaching clinical skills. Despite general acceptance, there is an apparent discrepancy between the way clinical encounters are conducted and how they are documented. METHODS: Fifteen medical school websites were randomly selected from search-engine generated lists. One example of a history and physical write-up from each of six sites, one teaching outline from each of nine additional sites, and recommendations for documentation made in two commonly used textbooks were compared for similarities and differences...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28096313/opportunities-to-reduce-ct-radiation-exposure-experience-over-5-years-at-the-nih-clinical-center
#14
William C Kovacs, Jianhua Yao, David A Bluemke, Les R Folio
Our current study was undertaken in order to compare CT exposures during various dose-reduction initiatives at the National Institutes of Health Clinical center, to show trends in exposure reduction over a 5-y period, and to provide benchmarks that other facilities may use. Using an in-house extraction tool (Radiation Exposure Extraction Engine), we derived CT exposure data from Digital Imaging and Communications in Medicine (DICOM) headers over 5 y. We present parameters used and compare most common exams between 2010 and 2015...
January 16, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28095650/bone-tissue-engineering-in-oral-peri-implant-defects-in-preclinical-in-vivo-research-a-systematic-review-and-meta-analysis
#15
REVIEW
Siddharth Shanbhag, Nikolaos Pandis, Kamal Mustafa, Jens R Nyengaard, Andreas Stavropoulos
Regeneration and establishment of osseointegration within oral peri-implant bone defects remains a clinical challenge. Bone tissue engineering (BTE) is emerging as a promising alternative to autogenous and/or biomaterial-based bone grafting. The objective of this systematic review was to answer the focused question: in animal models, do cell-based BTE strategies enhance bone regeneration and/or implant osseointegration in experimental peri-implant defects, compared to grafting with autogenous bone or only biomaterial scaffolds? Electronic databases were searched for controlled animal studies reporting on peri-implant defects and implantation of mesenchymal stem cells (MSC) or other cells seeded on biomaterial scaffolds, following PRISMA guidelines...
January 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28095622/talens-and-crispr-cas9-fuel-genetically-engineered-clinically-relevant-xenopus-tropicalis-tumor-models
#16
REVIEW
Thomas Naert, Tom van Nieuwenhuysen, Kris Vleminckx
The targeted nuclease revolution (TALENs, CRISPR/Cas9) now allows Xenopus researchers to rapidly generate custom on-demand genetic knockout models. These novel methods to perform reverse genetics are unprecedented and are fueling a wide array of human disease models within the aquatic diploid model organism Xenopus tropicalis (X. tropicalis). This emerging technology review focuses on the tools to rapidly generate genetically engineered X. tropicalis models (GEXM), with a focus on establishment of genuine genetic and clinically relevant cancer models...
January 17, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28094261/beyond-the-margins-real-time-detection-of-cancer-using-targeted-fluorophores
#17
REVIEW
Ray R Zhang, Alexandra B Schroeder, Joseph J Grudzinski, Eben L Rosenthal, Jason M Warram, Anatoly N Pinchuk, Kevin W Eliceiri, John S Kuo, Jamey P Weichert
Over the past two decades, synergistic innovations in imaging technology have resulted in a revolution in which a range of biomedical applications are now benefiting from fluorescence imaging. Specifically, advances in fluorophore chemistry and imaging hardware, and the identification of targetable biomarkers have now positioned intraoperative fluorescence as a highly specific real-time detection modality for surgeons in oncology. In particular, the deeper tissue penetration and limited autofluorescence of near-infrared (NIR) fluorescence imaging improves the translational potential of this modality over visible-light fluorescence imaging...
January 17, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28094240/ectopic-bone-formation-by-gel-derived-bioactive-glass-poly-l-lactide-co-glycolide-composites-in-a-rabbit-muscle-model
#18
Joanna Filipowska, Katarzyna Cholewa-Kowalska, Jarosław Wieczorek, Danuta Semik, Zbigniew Dąbrowski, Maria Łączka, Anna M Osyczka
In this study we aimed to assess the in vivo osteoinductive properties of two composite scaffolds made of PLGA (poly-L-lactide-co-glycolide) and two types of gel-derived bioactive glasses, namely a high silica S2 bioactive glass (S2-PLGA composites) or high lime A2 bioactive glass (A2-PLGA composites). To achieve that, the potential of the composites to induce ectopic bone formation in a rabbit muscle has been examined along with the control PLGA scaffold. Cylinder-like scaffolds of 7  ×  3 mm (width  ×  height) were implanted into pouches created in the latissimus dorsi muscle of 18 New Zealand rabbits...
January 17, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28093991/cancer-nanotechnology-recent-trends-and-developments-in-strategies-for-targeting-cancer-cells-to-improve-cancer-imaging-and-treatment
#19
Jingyao Xu, Xiaoling Zhou, Yifei Li, Yudan Tian
Nanotechnology is a multidisciplinary field, which have the potential to cover applications in many subjects such as biology, chemistry and physics. The combined efforts of these subjects can lead to the successful engineering of nanodevices and nanovectors for targeted delivery and sensing/detection of cancer cells/tissues. The modulation of nanomaterials at surface and bulk level further adds value to this technology and develop strategies for early detection of precancerous and malignant cells from biological fluids...
January 16, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28093887/collagen-hydrogel-scaffold-promotes-mesenchymal-stem-cell-and-endothelial-cell-coculture-for-bone-tissue-engineering
#20
Bao-Ngoc B Nguyen, Rebecca A Moriarty, Tim Kamalitdinov, Julie M Etheridge, John P Fisher
The generation of functional, vascularized tissues is a key challenge for the field of tissue engineering. Before clinical implantations of such tissue engineered bone constructs can succeed, tactics to promote neovascularization need to be strengthened. We have previously demonstrated that the tubular perfusion system (TPS) bioreactor is an effective culturing method to augment osteogenic differentiation and maintain viability of human mesenchymal stem cells (hMSC). Here, we devised a strategy to address the need for a functional microvasculature by designing an in vitro coculture system that simultaneously cultures osteogenic differentiating hMSCs with endothelial cells (ECs)...
January 17, 2017: Journal of Biomedical Materials Research. Part A
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