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https://www.readbyqxmd.com/read/27906075/nuclear-bodies-reorganize-during-myogenesis-in-vitro-and-are-differentially-disrupted-by-expression-of-fshd-associated-dux4
#1
Sachiko Homma, Mary Lou Beermann, Bryant Yu, Frederick M Boyce, Jeffrey Boone Miller
BACKGROUND: Nuclear bodies, such as nucleoli, PML bodies, and SC35 speckles, are dynamic sub-nuclear structures that regulate multiple genetic and epigenetic processes. Additional regulation is provided by RNA/DNA handling proteins, notably TDP-43 and FUS, which have been linked to ALS pathology. Previous work showed that mouse cell line myotubes have fewer but larger nucleoli than myoblasts, and we had found that nuclear aggregation of TDP-43 in human myotubes was induced by expression of DUX4-FL, a transcription factor that is aberrantly expressed and causes pathology in facioscapulohumeral dystrophy (FSHD)...
December 1, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27899950/bone-anchored-titanium-implants-in-patients-with-auricular-defects-three-years-and-27-patients-experience
#2
Emilio Mevio, Luca Facca, Stefano Schettini, Mauro Mullace
Different surgical solutions have been proposed for reconstruction of the auricle following loss of the pinna through traumatic injury or neoplastic disease or in patients with congenital defects. Surgical treatment may involve the insertion of an autogenous rib cartilage framework or the use of a porous polymer material inserted into an expanded postauricular flap. Reconstruction with rib cartilage has yielded good results but requires more than one surgical step, and adverse events can occur both at the donor and at the acceptor site; cases of prosthesis rejection have also been described following application of the polymeric prosthesis...
2016: International Journal of Otolaryngology
https://www.readbyqxmd.com/read/27895626/a-proposal-for-formation-of-archaean-stromatolites-before-the-advent-of-oxygenic-photosynthesis
#3
John F Allen
Stromatolites are solid, laminar structures of biological origin. Living examples are sparsely distributed and formed by cyanobacteria, which are oxygenic phototrophs. However, stromatolites were abundant between 3.4 and 2.4 Gyr, prior to the advent of cyanobacteria and oxygenic photosynthesis. Here I propose that many Archaean stromatolites were seeded at points of efflux of hydrogen sulfide from hydrothermal fields into shallow water, while their laminar composition arose from alternating modes of strictly anoxygenic photosynthetic metabolism...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27895402/effect-of-airplane-transport-of-donor-livers-on-post-liver-transplantation-survival
#4
Yi Huang, Gerry MacQuillan, Leon A Adams, George Garas, Megan Collins, Albert Nwaba, Linjun Mou, Max K Bulsara, Luc Delriviere, Gary P Jeffrey
AIM: To evaluate the effect of long haul airplane transport of donor livers on post-transplant outcomes. METHODS: A retrospective cohort study of patients who received a liver transplantation was performed in Perth, Australia from 1992 to 2012. Donor and recipient characteristics information were extracted from Western Australian liver transplantation service database. Patients were followed up for a mean of six years. Patient and graft survival were evaluated and compared between patients who received a local donor liver and those who received an airplane transported donor liver...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27889296/donor-and-recipient-views-on-their-relationship-in-living-kidney-donation-thematic-synthesis-of-qualitative-studies
#5
Angelique F Ralph, Phyllis Butow, Camilla S Hanson, Steve J Chadban, Jeremy R Chapman, Jonathan C Craig, John Kanellis, Grant Luxton, Allison Tong
BACKGROUND: Many donors and recipients report an improved relationship after transplantation; however, tension, neglect, guilt, and proprietorial concern over the recipient can impede donor and recipient well-being and outcomes. We aimed to describe donor and recipient expectations and experiences of their relationship in the context of living kidney donation. STUDY DESIGN: Thematic synthesis of qualitative studies. SETTING & POPULATION: Living kidney donors and recipients...
November 23, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27887866/continuously-expanding-car-nk-92-cells-display-selective-cytotoxicity-against-b-cell-leukemia-and-lymphoma
#6
Sarah Oelsner, Miriam E Friede, Congcong Zhang, Juliane Wagner, Susanne Badura, Peter Bader, Evelyn Ullrich, Oliver G Ottmann, Hans Klingemann, Torsten Tonn, Winfried S Wels
BACKGROUND AIMS: Natural killer (NK) cells can rapidly respond to transformed and stressed cells and represent an important effector cell type for adoptive immunotherapy. In addition to donor-derived primary NK cells, continuously expanding cytotoxic cell lines such as NK-92 are being developed for clinical applications. METHODS: To enhance their therapeutic utility for the treatment of B-cell malignancies, we engineered NK-92 cells by lentiviral gene transfer to express chimeric antigen receptors (CARs) that target CD19 and contain human CD3ζ (CAR 63...
November 22, 2016: Cytotherapy
https://www.readbyqxmd.com/read/27872095/t-cells-redirected-to-a-minor-histocompatibility-antigen-instruct-intratumoral-tnf-%C3%AE-expression-and-empower-adoptive-cell-therapy-for-solid-tumors
#7
Teresa Manzo, Tabea Sturmheit, Veronica Basso, Elisabetta Petrozziello, Rodrigo Hess Michelini, Michela Riba, Massimo Freschi, Angela R Elia, Matteo Grioni, Flavio Curnis, Maria Pia Protti, Ton N Schumacher, Reno Debets, Melody A Swartz, Angelo Corti, Matteo Bellone, Anna Mondino
Donor-derived allogeneic T cells evoke potent graft versus tumor (GVT) effects likely due to the simultaneous recognition of tumor-specific and host-restricted minor histocompatibility (H) antigens. Here we investigated whether such effects could be reproduced in autologous settings by TCR-gene engineered lymphocytes. We report that T cells redirected either to a broadly expressed Y-encoded minor H antigen or to a tumor-associated antigen, although poorly effective if individually transferred, when simultaneously administered enabled acute autochthonous tumor debulking and resulted in durable clinical remission...
November 21, 2016: Cancer Research
https://www.readbyqxmd.com/read/27861306/enhancing-dmek-success-by-identifying-optimal-levels-of-trypan-blue-dye-application-to-donor-corneal-tissue
#8
Parag A Majmudar, Lauren Johnson
PURPOSE: The purpose of this study was to determine the correct concentration and duration of application of trypan blue dye to Descemet membrane endothelial keratoplasty (DMEK) donor corneal tissue before transplant to enhance visibility while minimizing damage to the tissue. METHODS: Corneas were precut for DMEK using an 8-mm punch, and each was stained with either 0.06% or 0.15% trypan blue for a duration of 1, 3, or 5 minutes. After staining, each tissue was placed in balanced salt solution and observed to determine how quickly the stain faded from the tissue using a grading system...
November 16, 2016: Cornea
https://www.readbyqxmd.com/read/27832189/performance-of-streck-cfdna-blood-collection-tubes-for-liquid-biopsy-testing
#9
Inga Medina Diaz, Annette Nocon, Daniel H Mehnert, Johannes Fredebohm, Frank Diehl, Frank Holtrup
OBJECTIVES: Making liquid biopsy testing widely available requires a concept to ship whole blood at ambient temperatures while retaining the integrity of the cell-free DNA (cfDNA) population and stability of blood cells to prevent dilution of circulating tumor DNA (ctDNA) with wild-type genomic DNA. The cell- and DNA-stabilizing properties of Streck Cell-Free DNA BCT blood collection tubes (cfDNA BCTs) were evaluated to determine if they can be utilized in combination with highly sensitive mutation detection technologies...
2016: PloS One
https://www.readbyqxmd.com/read/27815447/efficient-culture-of-human-naive-and-memory-b-cells-for-use-as-apcs
#10
Kuei-Ying Su, Akiko Watanabe, Chen-Hao Yeh, Garnett Kelsoe, Masayuki Kuraoka
The ability to culture and expand B cells in vitro has become a useful tool for studying human immunity. A limitation of current methods for human B cell culture is the capacity to support mature B cell proliferation. We developed a culture method to support the efficient activation and proliferation of naive and memory human B cells. This culture supports extensive B cell proliferation, with ∼10(3)-fold increases following 8 d in culture and 10(6)-fold increases when cultures are split and cultured for 8 more days...
November 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27810903/nnmt-silencing-activates-tumor-suppressor-pp2a-inactivates-oncogenic-stks-and-inhibits-tumor-forming-ability
#11
Kamalakannan Palanichamy, Suman Kanji, Nicolaus Gordon, Krishnan Thirumoorthy, John R Jacob, Kevin T Litzenberg, Disha Patel, Arnab Chakravarti
PURPOSE: To identify potential molecular hubs that regulate oncogenic kinases and target them to improve treatment outcomes for glioblastoma (GBM) patients. EXPERIMENTAL DESIGN: Data mining of The Cancer Genome Atlas (TCGA) datasets identified Nicotinamide-N-methyl transferase (NNMT) as a prognostic marker for GBM, an enzyme linked to the reorganization of the methylome. We tested our hypothesis that NNMT plays a crucial role by modulating protein methylation leading to inactivation of tumor suppressors and activation of oncogenes...
November 3, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27807869/the-effect-of-a-standard-whole-blood-donation-on-oxygen-uptake-and-exercise-capacity-a-systematic-review-and-meta-analysis
#12
REVIEW
Hans Van Remoortel, Emmy De Buck, Veerle Compernolle, Louise Deldicque, Philippe Vandekerckhove
BACKGROUND: Blood is a life-saving product for many people worldwide. Voluntary blood donation serves the demand for blood but there are concerns among potential donors about the impact of blood loss on exercise performance. This systematic review aimed to collect the best available evidence of the effect of a standard whole blood donation on aerobic exercise performance. STUDY DESIGN AND METHODS: Studies from six databases dealing with a standard whole blood donation (400-500 mL) followed by (sub)maximal exercise were retained...
November 3, 2016: Transfusion
https://www.readbyqxmd.com/read/27806439/interaction-products-of-cytotoxic-cu-i-complexes-with-different-solvent-mixtures-an-esi-ms-and-dft-study
#13
Francesco Tisato, Daniel Forrer, Sergio Tamburini, Andrea Vittadini, Pietro Traldi, Marina Porchia
RATIONALE: [Cu(P)4 ][BF4 ]-type complexes (P = tertiary phosphine) have shown significant antitumor activity. This biological property appears to be activated via formation of coordinative unsaturated [Cu(P)n ](+) species (n < 4), that may interact with various molecules starting from the solvent(s) in which they are dissolved. Aim of our study was to investigate the interaction of these species with different solvent mixtures. METHODS: The interaction has been investigated in electrospray ionization mass spectrometry, and the interaction products have been characterized by multiple collisional experiments, using an ion trap mass instrument...
November 2, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/27798170/eomeshi-nk-cells-in-human-liver-are-long-lived-and-do-not-recirculate-but-can-be-replenished-from-the-circulation
#14
Antonia O Cuff, Francis P Robertson, Kerstin A Stegmann, Laura J Pallett, Mala K Maini, Brian R Davidson, Victoria Male
Human liver contains an Eomes(hi) population of NK cells that is not present in the blood. In this study, we show that these cells are characterized by a molecular signature that mediates their retention in the liver. By examining liver transplants where donors and recipients are HLA mismatched, we distinguish between donor liver-derived and recipient-derived leukocytes to show that Eomes(lo) NK cells circulate freely whereas Eomes(hi) NK cells are unable to leave the liver. Furthermore, Eomes(hi) NK cells are retained in the liver for up to 13 y...
December 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27769605/intratissular-expansion-mediated-serial-fat-grafting-a-step-by-step-working-algorithm-to-achieve-3d-biological-harmony-in-autologous-breast-reconstruction
#15
Filip B J L Stillaert, Casper Sommeling, Salvatore D'Arpa, David Creytens, Koenraad Van Landuyt, Herman Depypere, Rudy Van den Broecke, Stan Monstrey, Phillip N Blondeel, Wayne A Morrison
BACKGROUND: Breast reconstruction involves the use of autologous tissues or implants. Occasionally, microsurgical reconstruction is not an option because of insufficient donor tissues. Fat grafting has become increasingly popular in breast surgery. The challenge with this technique is how to reconstruct a stable and living "scaffold" that resembles a breast. METHODS: Breast reconstruction (n = 7) was performed using intratissular expansion with serial deflation-lipofilling sessions...
September 27, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27768952/a-biophysical-investigation-on-the-binding-of-proflavine-with-human-hemoglobin-insights-from-spectroscopy-thermodynamics-and-afm-studies
#16
Anirban Basu, Gopinatha Suresh Kumar
Interaction of proflavine with hemoglobin (Hgb) was studied employing spectroscopy, calorimetry, and atomic force microscopy. The equilibrium constant was found to be of the order 10(4)M(-1). The quenching of Hgb fluorescence by proflavine was due to the complex formation. Calculation of the molecular distance (r) between the donor (β-Trp37 of Hgb) and acceptor (proflavine) suggested that energy can be efficiently transferred from the β-Trp37 residue at the α1β2 interface of the protein to the dye. Proflavine induced significant secondary structural changes in Hgb...
October 12, 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/27765169/biomechanics-of-failed-pulmonary-autografts-compared-to-native-aortic-roots
#17
Aart Mookhoek, Kapil Krishnan, Sam Chitsaz, Heide Kuang, Liang Ge, Paul H Schoof, Ad J J C Bogers, Johanna J M Takkenberg, Elaine E Tseng
BACKGROUND: Progressive autograft dilatation after a Ross operation suggests that remodeling does not effectively reproduce native aortic root biomechanics. In the first of this two-part series, we compared mechanical properties of explanted autografts to pulmonary roots at pulmonary pressures. The goal of this study was to compare mechanical properties of explanted autografts to native aortic roots at systemic pressures. METHODS: Autograft specimens were obtained from patients undergoing reoperation after Ross operation...
October 17, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27760752/ectopic-trophoblast-allografts-in-the-horse-resist-destruction-by-secondary-immune-responses
#18
Margaret M Brosnahan, Emily J Silvela, Jessica Crumb, Donald C Miller, Hollis N Erb, Douglas F Antczak
Invasive trophoblast from Day-34 horse conceptuses survives in extra-uterine sites in allogeneic recipients that are immunologically naïve to donor major histocompatibility complex class I antigens. The ectopic trophoblast retains its in utero characteristics, including similar lifespan, physiologic effect of its secreted product (equine chorionic gonadotrophin) upon the recipient's ovaries, and induction of host immune responses. Immunologic memory has not been considered previously in this experimental system...
October 19, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/27741957/where-teachers-are-few-documenting-available-faculty-in-five-tanzanian-medical-schools
#19
Charles A Mkony, Ephata E Kaaya, Alex J Goodell, Sarah B Macfarlane
BACKGROUND: Faced with one of the lowest physician-to-population ratios in the world, the Government of Tanzania is urging its medical schools to train more physicians. The annual number of medical students admitted across the country rose from 55 in the 1990s to 1,680 approved places for the 2015/16 academic year. These escalating numbers strain existing faculty. OBJECTIVE: To describe the availability of faculty in medical schools in Tanzania. DESIGN: We identified faculty lists published on the Internet by five Tanzanian medical schools for the 2011/12 academic year and analyzed the appointment status, rank, discipline, and qualifications of faculty members...
2016: Global Health Action
https://www.readbyqxmd.com/read/27738605/failure-of-fecal-microbiota-transplantation-in-a-three-year-old-child-with-severe-refractory-ulcerative-colitis
#20
Hideki Kumagai, Koji Yokoyama, Tomoyuki Imagawa, Shun Inoue, Janyerkye Tulyeu, Mamoru Tanaka, Takanori Yamagata
Fecal microbiota transplantation (FMT) is a treatment designed to correct gut dysbiosis by administration of feces from a healthy volunteer. It is still unclear whether FMT for children with ulcerative colitis (UC) is effective or hazardous. Here we describe a young patient to have received FMT for UC. A three-year-old girl was admitted to our hospital with severe active UC, and treated with aminosalicylates and various immunosuppressive drugs. As remission was not achieved, we decided to try FMT before colectomy...
September 2016: Pediatric Gastroenterology, Hepatology & Nutrition
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