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https://www.readbyqxmd.com/read/29782834/high-throughput-dissection-of-aav-host-interactions-the-fast-and-the-curious
#1
REVIEW
Anne-Kathrin Herrmann, Dirk Grimm
Over fifty years after its initial description, Adeno-associated virus (AAV) remains a most exciting but also most elusive study object in basic or applied virology. On the one hand, its simple structure not only facilitates investigations into virus biology, but combined with the availability of numerous natural AAV variants with distinct infection efficiency and specificity also makes AAV a preferred substrate for engineering of gene delivery vectors. On the other hand, it is striking to witness a recent flurry of reports that highlight and partially close persistent gaps in our understanding of AAV virus and vector biology...
May 18, 2018: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29782191/lipid-protein-and-microrna-composition-within-mesenchymal-stem-cell-derived-exosomes
#2
Hao Deng, Chun Sun, Yingxin Sun, Huhu Li, Lin Yang, Danbin Wu, Qing Gao, Xijuan Jiang
Mesenchymal stem cells (MSCs) were regarded as one of the most promising type of seed cells in tissue engineering due to its easy accessibility and multipotent feature of being able to differentiate into adipocyte, osteoblast, cardiomyocytes, and neurons. For years, MSCs have been applied in treating cardiovascular disease, reconstructing kidney injury, and remodeling immune system with remarkable achievements. Basic researches revealed that its clinic effects are not only due to their pluripotent ability but also through their paracrine function that they synthesize and secrete a broad spectrum of growth factors and cytokines...
May 21, 2018: Cellular Reprogramming
https://www.readbyqxmd.com/read/29781806/the-need-for-understanding-and-engaging-the-patient-as-consumer-of-products-developed-by-neural-engineering
#3
Jennifer French, J Luis Lujan, Dawn Bardot, Emily Lauren Graczyk, Allison Hess-Dunning, Ronald J Triolo, Megan Moynahan, Winny Tan, Adeline Zbrzeski
Neural Engineering is a discipline at the intersection of neuroscience, engineering, and clinical care. Recent major efforts by government and industry aimed at bringing forth personalized therapies, increasing the potential of the neural engineering industry for future growth, eg. the National Institutes of Health (NIH) Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative and Stimulating Peripheral Activity to Relieve Conditions (SPARC) Common Fund Program, the Defense Advanced Research Projects Agency (DARPA) Electrical Prescriptions (ElectRx) and Systems-Based Neurotechnology for Emerging Therapies (SUBNETS) Programs, and the GlaxoSmithKline Bioelectric Medicines Initiative...
May 21, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29781340/graphene-oxide-enhances-alginate-encapsulated-cells-viability-and-functionality-while-not-affecting-the-foreign-body-response
#4
Jesús Ciriza, Laura Saenz Del Burgo, Haritz Gurruchaga, Francesc E Borras, Marcella Franquesa, Gorka Orive, Rosa Maria Hernández, José Luis Pedraz
The combination of protein-coated graphene oxide (GO) and microencapsulation technology has moved a step forward in the challenge of improving long-term alginate encapsulated cell survival and sustainable therapeutic protein release, bringing closer its translation from bench to the clinic. Although this new approach in cell microencapsulation represents a great promise for long-term drug delivery, previous studies have been performed only with encapsulated murine C2 C12 myoblasts genetically engineered to secrete murine erythropoietin (C2 C12 -EPO) within 160 µm diameter hybrid alginate protein-coated GO microcapsules implanted into syngeneic mice...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29780361/challenges-and-promises-for-planning-future-clinical-research-into-bacteriophage-therapy-against-pseudomonas-aeruginosa-in-cystic-fibrosis-an-argumentative-review
#5
REVIEW
Martina Rossitto, Ersilia V Fiscarelli, Paola Rosati
Although early aggressive and prolonged treatment with specific antibiotics can extend survival in patients with cystic fibrosis (CF) colonized by opportunistic Pseudomonas aeruginosa (PA), antibiotics fail to eradicate the infecting multidrug-resistant (MDR) PA strains in CF. Century-long research has suggested treating patients with bacteriophages (phages, prokaryotic viruses) naturally hosted by bacteria. Although the only phage types used in therapy, lytic phages, lyse PA aggregated in biofilm matrix by depolymerase degrading enzymes, how they can effectively, safely, and persistently do so in patients with CF is unclear...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29779717/the-design-and-evaluation-of-an-antimicrobial-resistance-surveillance-system-for-neonatal-intensive-care-units-in-iran
#6
Peyman Rezaei-Hachesu, Taha Samad-Soltani, Sajad Yaghoubi, Marjan GhaziSaeedi, Kayvan Mirnia, Hossein Masoumi-Asl, Reza Safdari
INTRODUCTION: Neonatal intensive care units (NICUs) have complex patients in terms of their diagnoses and required treatments. Antimicrobial treatment is a common therapy for patients in NICUs. To solve problems pertaining to empirical therapy, antimicrobial stewardship programs have recently been introduced. Despite the success of these programs in terms of data collection, there is still inefficiency in terms of analyzing and reporting the data. Thus, to successfully implement these stewardship programs, the design of antimicrobial resistance (AMR) surveillance systems is recommended as a first step...
July 2018: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29779014/current-insights-on-use-of-growth-factors-as-therapy-for-intervertebral-disc-degeneration
#7
Justin C Kennon, Mohamed E Awad, Norman Chutkan, John DeVine, Sadanand Fulzele
Chronic low back pain is a critical health problem and a leading cause of disability in aging populations. A major cause of low back pain is considered to be the degeneration of the intervertebral disc (IVD). Recent advances in therapeutics, particularly cell and tissue engineering, offer potential methods for inhibiting or reversing IVD degeneration, which have previously been impossible. The use of growth factors is under serious consideration as a potential therapy to enhance IVD tissue regeneration. We reviewed the role of chosen prototypical growth factors and growth factor combinations that have the capacity to improve IVD restoration...
May 19, 2018: Biomolecular Concepts
https://www.readbyqxmd.com/read/29778713/concluding-commentary-on-current-trends-to-enhance-the-clinical-safety-of-pediatric-transfusion-focusing-on-prevention-of-untoward-complications-of-hsc-transplantation-newer-strategies-for-improving-the-standards-of-safety-quality-of-stem-cells-expansion-for
#8
REVIEW
Irena Sniecinski, Jerard Seghatchian
Clinical practice and related diagnostic, development and research [DDR] strategies in pediatric transfusion and transplantation cover a broad range of multidisciplinary studies, performed by many professionals involved in this most challenging clinical field [1]. This commentary on the current position and future perspectives in pediatric transfusion field is aimed to highlight major unresolved transfusion complications in pediatric patients, namely red blood cell and platelet alloimmunisation, and new ones such as nosocomial infection, thrombosis and multi-organ failure...
May 16, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29777616/regenerative-endodontics-a-review
#9
REVIEW
S G Kim, M Malek, A Sigurdsson, L M Lin, B Kahler
The European Society of Endodontology and the American Association for Endodontists have released position statements and clinical considerations for regenerative endodontics. There is increasing literature on this field since the initial reports of Iwaya et al. (2001) and Banchs & Trope (2004). Endogenous stem cells from an induced periapical bleeding and scaffolds using blood clot, platelet rich plasma or platelet rich fibrin have been utilized in regenerative endodontics. This approach has been described as a 'paradigm shift" and considered the first treatment option for immature teeth with pulp necrosis...
May 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29777611/extragastrointestinal-stromal-tumor-egist-a-16-year-experience-of-13-cases-diagnosed-at-a-single-center
#10
Engin Hatipoğlu
BACKGROUND Gastrointestinal stromal tumor (GISTs) rarely occurs outside the GI tract as extragastrointestinal stromal tumor (EGIST). The aim of this study was to review the clinical presentation, diagnosis, and outcome of EGIST at a single center. MATERIAL AND METHODS The study was a retrospective study performed at Istanbul University Hospital in a 16-year period and included patients with a histopathological diagnosis of EGIST confirmed to arise outside the GI tract. The patients' available medical records included patient demographics, imaging and surgical data, and diagnostic histopathology reports...
May 19, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29777593/degradation-of-recombinant-proteins-by-cho-host-cell-proteases-is-prevented-by-matriptase-1-knock-out
#11
Holger Laux, Sandrine Romand, Sandro Nuciforo, Christopher J Farady, Joel Tapparel, Stine Buechmann-Moeller, Benjamin Sommer, Edward J Oakeley, Ursula Bodendorf
An increasing number of non-antibody format proteins are entering the clinical development. However, one of the major hurdles for the production of non-antibody glycoproteins is host cell-related proteolytic degradation, which can drastically impact developability and timelines of pipeline projects. Chinese hamster ovary (CHO) cells are the preferred production host for recombinant therapeutic proteins. Using protease inhibitors, transcriptomics and genetic knockdowns we have identified, out of the more than 700 known proteases in rodents, Matriptase-1 as the major protease involved in degradation of recombinant proteins expressed in CHO-K1 cells...
May 19, 2018: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29775771/a-detailed-analysis-of-the-arden-syntax-expression-grammar
#12
Stefan Kraus, Marc Rosenbauer, Lutz Schröder, Thomas Bürkle, Klaus-Peter Adlassnig, Dennis Toddenroth
OBJECTIVE: The Arden Syntax for Medical Logic Systems is a standard for encoding and sharing medical knowledge in the form of Medical Logic Modules. To improve accessibility for clinicians, the originators of the standard deliberately designed Arden Syntax expressions to resemble natural language, and parentheses around operands are not generally required. For certain patterns of nested expressions, however, the use of parentheses is mandatory, otherwise they are not accepted by an Arden Syntax environment...
May 15, 2018: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/29774782/the-neuroprotective-effect-of-ethanol-intoxication-in-tbi-is-associated-with-the-suppression-of-erbb-signaling-in-pv-positive-interneurons
#13
Akila Chandrasekar, Florian Olde Heuvel, Martin Wepler, Rida Rehman, Annette Palmer, Alberto Catanese, Birgit Linkus, Albert Ludolph, Tobias Boeckers, Markus Huber-Lang, Peter Radermacher, Francesco Roselli
Ethanol intoxication (EI) is a frequent comorbidity of TBI, but the impact of EI on TBI pathogenic cascades and prognosis is unclear: although clinical evidence suggests that EI may have neuroprotective effects, experimental support is, to date, inconclusive. We aimed at elucidating the impact of EI on TBI-associated neurological deficits, signaling pathways and pathogenic cascades, in order to identify new modifiers of TBI pathophysiology. We have shown that ethanol administration (5g/Kg) before trauma enhances behavioral recovery in a weight-drop TBI model; neuronal survival in the injured somatosensory cortex was enhanced by EI...
May 18, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29773891/assessing-the-feasibility-of-neutralizing-osteopontin-with-various-therapeutic-antibody-modalities
#14
Vahid Farrokhi, Jeffrey R Chabot, Hendrik Neubert, Zhiyong Yang
Osteopontin is a secreted glycophosphoprotein that is highly implicated in many physiological and pathological processes such as biomineralization, cell-mediated immunity, inflammation, fibrosis, cell survival, tumorigenesis and metastasis. Antibodies against osteopontin have been actively pursued as potential therapeutics for various diseases by pharmaceutical companies and academic laboratories. Many studies have demonstrated the efficacy of osteopontin inhibition in a variety of preclinical models of diseases such as rheumatoid arthritis, cancer, nonalcoholic steatohepatitis, but clinical utility has not yet been demonstrated...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773774/us-and-cuban-scientists-forge-collaboration-on-arbovirus-research
#15
Jorge Pérez-Ávila, Maria G Guzmán-Tirado, Jorge Fraga-Nodarse, Gray Handley, James Meegan, Jose L Pelegrino-Martínez de la Cotera, Anthony S Fauci
After December 17, 2014, when the US and Cuban governments announced their intent to restore relations, the two countries participated in various exchange activities in an effort to encourage cooperation in public health, health research and biomedical sciences. The conference entitled Exploring Opportunities for Arbovirus Research Collaboration, hosted at Havana's Hotel Nacional, was part of these efforts and was the first major US-Cuban scientific conference in over 50 years. Its purpose was to share information about current arbovirus research and recent findings, and to explore opportunities for future joint research...
April 2018: MEDICC Review
https://www.readbyqxmd.com/read/29773449/primary-bone-tumors-and-tumor-like-lesions-of-the-ulna
#16
Osman Emre Aycan, Sami Sökücü, Devrim Özer, Engin Çetinkaya, Yavuz Arıkan, Yavuz Selim Kabukçuoğlu
OBJECTIVE: The aim of this study was to discuss the diagnosis and surgical management and their results according to stage of primary bone tumors at ulna and to share our experience on this exceptional location for bone tumors. METHODS: We have retrospectively reviewed our clinics database and identified 23 cases (14 males and 9 females, mean age was 28.9 (range 4-77)) with primary bone tumors and tumor like lesion involvement of ulna. The patients were evaluated according to complaints, type and grade of tumor, treatment, recurrence and functional status...
May 14, 2018: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29772691/periodontal-tissues-maxillary-jaw-bone-and-tooth-regeneration-approaches-from-animal-models-analyses-to-clinical-applications
#17
REVIEW
Fareeha Batool, Marion Strub, Catherine Petit, Isaac Maximiliano Bugueno, Fabien Bornert, François Clauss, Olivier Huck, Sabine Kuchler-Bopp, Nadia Benkirane-Jessel
This review encompasses different pre-clinical bioengineering approaches for periodontal tissues, maxillary jaw bone, and the entire tooth. Moreover, it sheds light on their potential clinical therapeutic applications in the field of regenerative medicine. Herein, the electrospinning method for the synthesis of polycaprolactone (PCL) membranes, that are capable of mimicking the extracellular matrix (ECM), has been described. Furthermore, their functionalization with cyclosporine A (CsA), bone morphogenetic protein-2 (BMP-2), or anti-inflammatory drugs' nanoreservoirs has been demonstrated to induce a localized and targeted action of these molecules after implantation in the maxillary jaw bone...
May 16, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29772461/quickening-translational-design-of-resorbable-synthetic-vascular-grafts
#18
REVIEW
Chelsea E T Stowell, Yadong Wang
Traditional tissue-engineered vascular grafts have yet to gain wide clinical use. The difficulty of scaling production of these cell- or biologic-based products has hindered commercialization. In situ tissue engineering bypasses such logistical challenges by using acellular resorbable scaffolds. Upon implant, the scaffolds become remodeled by host cells. This review describes the scientific and translational advantages of acellular, synthetic vascular grafts. It surveys in vivo results obtained with acellular synthetics over their fifty years of technological development...
May 5, 2018: Biomaterials
https://www.readbyqxmd.com/read/29772310/recombination-activity-of-human-rag2-mutations-and-correlation-with-the-clinical-phenotype
#19
Irit Tirosh, Yasuhiro Yamazaki, Francesco Frugoni, Francesca A Ververs, Eric J Allenspach, Yu Zhang, Siobhan Burns, Waleed Al-Herz, Lenora Noroski, Jolan E Walter, Andrew R Gennery, Mirjam van der Burg, Luigi D Notarangelo, Yu Nee Lee
BACKGROUND: Mutations in the Recombinase Activating Gene 1 and 2 (RAG1, RAG2) are associated with a broad range of clinical and immunological phenotypes in humans. OBJECTIVE: Using a flow cytometry-based assay, we aimed to measure the recombinase activity of naturally occurring RAG2 mutant proteins, and to correlate results with the severity of the clinical and immunological phenotype. METHODS: Abelson virus-transformed Rag2-/- pro-B cells engineered to contain an inverted GFP cassette flanked by recombination signal sequences (RSS) were transduced with retroviruses encoding either wild-type or 41 naturally occurring RAG2 variants...
May 14, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29772248/scaffolds-for-peripheral-nerve-repair-and-reconstruction
#20
REVIEW
Sheng Yi, Lai Xu, Xiaosong Gu
Trauma-associated peripheral nerve defect is a widespread clinical problem. Autologous nerve grafting, the current gold standard technique for the treatment of peripheral nerve injury, has many internal disadvantages. Emerging studies showed that tissue engineered nerve graft is an effective substitute to autologous nerves. Tissue engineered nerve graft is generally composed of neural scaffolds and incorporating cells and molecules. A variety of biomaterials have been used to construct neural scaffolds, the main component of tissue engineered nerve graft...
May 14, 2018: Experimental Neurology
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