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https://www.readbyqxmd.com/read/28102730/alloimmunisation-in-transfused-patients-serial-cross-matching-in-a-population-of-hospitalised-cats
#1
Layla Hourani, Christiane Weingart, Barbara Kohn
Objectives Cross-matching is currently recommended as part of pre-transfusion testing for repeat transfusions in cats 4 days after having received an initial transfusion. This prospective study determined when and if cats developed positive cross-match (CM) results after having been transfused with AB-compatible blood. Methods Donors were selected according to standard transfusion safety protocols. Twenty-one hospitalised anaemic recipients (blood type A: n = 20; blood type B: n = 1) received 1-4 (median 2) whole-blood transfusions (WBTs) over 1-6 days (median 2) in 33 transfusion instances...
January 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28100495/probe-free-digital-pcr-quantitative-methodology-to-measure-donor-specific-cell-free-dna-after-solid-organ-transplantation
#2
Su Kah Goh, Vijayaragavan Muralidharan, Christopher Christophi, Hongdo Do, Alexander Dobrovic
BACKGROUND: Donor-specific cell-free DNA (dscfDNA) is increasingly being considered as a noninvasive biomarker to monitor graft health and diagnose graft rejection after solid-organ transplantation. However, current approaches used to measure dscfDNA can be costly and/or laborious. A probe-free droplet digital PCR (ddPCR) methodology using small deletion/insertion polymorphisms (DIPs) was developed to circumvent these limitations without compromising the quantification of dscfDNA. This method was called PHABRE-PCR (Primer to Hybridize across an Allelic BREakpoint-PCR)...
January 18, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28100265/allogeneic-stem-cell-transplantation-in-adult-patients-with-acute-myeloid-leukaemia-and-17p-abnormalities-in-first-complete-remission-a-study-from-the-acute-leukemia-working-party-alwp-of-the-european-society-for-blood-and-marrow-transplantation-ebmt
#3
Xavier Poiré, Myriam Labopin, Johan Maertens, Ibrahim Yakoub-Agha, Didier Blaise, Norbert Ifrah, Gérard Socié, Tobias Gedde-Dhal, Nicolaas Schaap, Jan J Cornelissen, Stéphane Vigouroux, Jaime Sanz, Lucienne Michaux, Jordi Esteve, Mohamad Mohty, Arnon Nagler
BACKGROUND: Acute myeloid leukaemia (AML) with 17p abnormalities (abn(17p)) carries a very poor prognosis due to high refractoriness to conventional chemotherapy, and allogeneic stem cell transplantation (allo-SCT) appears as the only potential curative option. METHODS: To address outcomes after allo-SCT in patients with abn(17p), we retrospectively analysed de novo or secondary AML undergoing SCT between 2000 and 2013 from the EBMT registry. RESULTS: One hundred thirty-nine patients with confirmed abn(17p) have been selected...
January 18, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28100194/interspecies-transfer-of-vancomycin-erythromycin-and-tetracycline-resistance-among-enterococcus-species-recovered-from-agrarian-sources
#4
M Conwell, V Daniels, P J Naughton, J S G Dooley
BACKGROUND: Enterococci are now well recognised for their ability to transfer antibiotic resistance and for their association with nosocomial infections, but less is known regarding their relevance in the wider environment. Enterococcus faecalis and Enterococcus faecium were isolated from a range of agrarian associated sources (low-flow water, septic tank, poultry litter, high flow water, slurry/soil) and were assessed for latent ability to transfer antimicrobial resistance. RESULTS: The isolates were tested for phenotypic clumping in the presence of cell-free supernatant from other isolates...
January 18, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28100111/noteworthy-literature-published-in-2016-for-abdominal-organ-transplantation-anesthesiologists
#5
Tetsuro Sakai, Jeron Zerillo
More than 3000 peer-reviewed publications on the topic of liver transplantation were published in 2016. The goal of this article is to provide a concise review of pertinent literature for anesthesiologists who participate in liver transplantation. The authors selected and presented 33 articles published in 2016 on the topics of MELD policy; cardiovascular, pulmonary, and renal issues; coagulation and transfusion; anesthetic agents; hemodynamic monitors; acute liver failure; and donor issues.
January 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28099807/investigation-of-donor-acceptor-stenhouse-adducts-as-new-visible-wavelength-responsive-switching-elements-for-lipid-based-liquid-crystalline-systems
#6
Shiyang Jia, Joanne D Du, Adrian M Hawley, Wye-Khay Fong, Bim Graham, Ben J Boyd
The ability of Donor Acceptor Stenhouse Adducts (DASAs) to function as a green light responsive switch for lipid-based liquid crystalline drug delivery systems was investigated. The host matrix comprising phytantriol cubic phase was selected due to its high sensitivity towards changes in lipid packing. Small angle X-ray scattering demonstrated that the matrix undergoes rapid and fully reversible order-order phase transitions upon irradiation with 532 nm light, converting between the bicontinuous cubic phase and reversed hexagonal phases...
January 18, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28099357/bilayered-negative-pressure-wound-therapy-preventing-leg-incision-morbidity-in-coronary-artery-bypass-graft-patients-a-randomized-controlled-trial
#7
Yongchao Yu, Zhigang Song, Zhiyun Xu, Xiaofei Ye, Chunyu Xue, Junhui Li, Hongda Bi
BACKGROUNDS: The harvesting of great saphenous veins for coronary artery bypass graft (CABG) patients may result in significant complications, including lymphorrhagia, lymphoedema, incision infection, wound dehiscence, and skin flap necrosis. We investigated the function of a self-designed bilayered negative pressure wound therapy (b-NPWT) for reducing the above-mentioned complications using a clinical randomized controlled trial. METHODS: A single-center, pilot randomized controlled trial was conducted...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28099118/assessment-of-autoantibodies-to-interferon-%C3%AF-in-patients-with-autoimmune-polyendocrine-syndrome-type-1-using-a-new-immunoprecipitation-assay
#8
Maria Del Pilar Larosa, Rachel Mackenzie, Peter Burne, Silvia Garelli, Susi Barollo, Stefano Masiero, Beatrice Rubin, Shu Chen, Jadwiga Furmaniak, Corrado Betterle, Bernard Rees Smith
BACKGROUND: Measurements of autoantibodies to interferon ω (IFN-ω) in patients with autoimmune polyglandular syndrome type 1 (APS-1) were performed using a new immunoprecipitation assay (IPA) based on 125I-labeled IFN-ω. METHODS: We have developed and validated a new IPA based on 125I-labeled IFN-ω. Sera from 78 patients (aged 3-78 years) with clinically diagnosed APS-1, 35 first degree relatives, 323 patients with other adrenal or non-adrenal autoimmune diseases and 84 healthy blood donors were used in the study...
January 18, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28098294/co2-as-a-hydrogen-vector-transition-metal-diamine-catalysts-for-selective-hcooh-dehydrogenation
#9
Cornel Fink, Gábor Laurenczy
The homogeneous catalytic dehydrogenation of formic acid in aqueous solution provides an efficient in situ method for hydrogen production, under mild conditions, and at an adjustable rate. We synthesized a series of catalysts with the chemical formula [(Cp*)M(N-N')Cl] (M = Ir, Rh; Cp* = pentamethylcyclopentadienyl; N-N = bidentate chelating nitrogen donor ligands), which have been proven to be active in selective formic acid decomposition in aqueous media. The scope of the study was to examine the relationship between stability and activity of catalysts for formic acid dehydrogenation versus electronic and steric properties of selected ligands, following a bottom-up approach by increasing the complexity of the N,N'-ligands progressively...
January 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28096847/transfusion-transmitted-malaria-in-iran-a-narrative-review-article
#10
REVIEW
Ahmad Mardani, Hossein Keshavarz, Ali Akbar Pourfathollah, Mahtab Maghsudlu
BACKGROUND: Malaria is the most important transfusion-transmitted infection (TTI) in worldwide after viral hepatitis and human immunodeficiency virus (HIV) infection. The main objective of the present study was to review and evaluate the transmission of malaria via blood transfusion in Iran. METHODS: A literature search was done without time limitation in the electronic databases as follows: PubMed, Scopus, Google Scholar, Web of Science, Science Direct, scientific information database (SID), Magiran, IranMedex and Irandoc...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28096513/targeting-tnfr2-with-antagonistic-antibodies-inhibits-proliferation-of-ovarian-cancer-cells-and-tumor-associated-tregs
#11
Heather Torrey, John Butterworth, Toshiyuki Mera, Yoshiaki Okubo, Limei Wang, Danielle Baum, Audrey Defusco, Sara Plager, Sarah Warden, Daniel Huang, Eva Vanamee, Rosemary Foster, Denise L Faustman
Major barriers to cancer therapy include the lack of selective inhibitors of regulatory T cells (Tregs) and the lack of broadly applicable ways to directly target tumors through frequently expressed surface oncogenes. Tumor necrosis factor receptor 2 (TNFR2) is an attractive target protein because of its restricted abundance to highly immunosuppressive Tregs and oncogenic presence on human tumors. We characterized the effect of TNFR2 inhibition using antagonistic antibodies. In culture-based assays, we found that two TNFR2 antagonists inhibited Treg proliferation, reduced soluble TNFR2 secretion from normal cells, and enabled T effector cell expansion...
January 17, 2017: Science Signaling
https://www.readbyqxmd.com/read/28095555/megasessions-for-robotic-hair-restoration
#12
Joa O Carlos Pereira, Joa O Carlos Pereira Filho, Joa O Pedro Cabrera Pereira
A robotic system can select and remove individual hair follicles from the donor area with great precision and without fatigue. This report describes the use of the robotic system in a megasession for hair restoration. Patients were instructed to cut their hair to 1.0 to 1.2 mm before surgery. The robot selected and removed 600 to 800 grafts per hour so the follicular units (FU)s could be transplanted manually to recipient sites. The robot arm consists of a sharp inner punch and a blunt outer punch which together separate FUs from the sur- rounding tissue...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095454/non-homologous-end-joining-and-homology-directed-dna-repair-frequency-of-double-stranded-breaks-introduced-by-genome-editing-reagents
#13
Michail Zaboikin, Tatiana Zaboikina, Carl Freter, Narasimhachar Srinivasakumar
Genome editing using transcription-activator like effector nucleases or RNA guided nucleases allows one to precisely engineer desired changes within a given target sequence. The genome editing reagents introduce double stranded breaks (DSBs) at the target site which can then undergo DNA repair by non-homologous end joining (NHEJ) or homology directed recombination (HDR) when a template DNA molecule is available. NHEJ repair results in indel mutations at the target site. As PCR amplified products from mutant target regions are likely to exhibit different melting profiles than PCR products amplified from wild type target region, we designed a high resolution melting analysis (HRMA) for rapid identification of efficient genome editing reagents...
2017: PloS One
https://www.readbyqxmd.com/read/28095452/influence-of-mechanical-circulatory-support-on-endothelin-receptor-expression-in-human-left-ventricular-myocardium-from-patients-with-dilated-cardiomyopathy-dcm
#14
Florian Gärtner, Getu Abraham, Astrid Kassner, Daniela Baurichter, Hendrik Milting
BACKGROUND: In terminal failing hearts ventricular assist devices (VAD) are implanted as a bridge to transplantation. Endothelin receptor (ETR) antagonists are used for treatment of secondary pulmonary hypertension in VAD patients. However, the cardiac ETR regulation in human heart failure and during VAD support is incompletely understood. METHODS: In paired left ventricular samples of 12 dilated cardiomyopathy patients we investigated the density of endothelin A (ETA) and B (ETB) receptors before VAD implantation and after device removal...
2017: PloS One
https://www.readbyqxmd.com/read/28094847/increased-regulatory-t-cell-graft-content-is-associated-with-improved-outcome-in-haematopoietic-stem-cell-transplantation-a-systematic-review
#15
Sheila A Fisher, Abigail Lamikanra, Carolyn Dorée, Betty Gration, Pat Tsang, Robert D Danby, David J Roberts
Allogeneic haematopoietic stem cell transplant (HSCT) recipients are at increased risk of morbidity and mortality, often due to the development of acute or chronic graft-versus-host disease (GVHD). Low numbers or proportions of regulatory T cells (Tregs) have been reported in patients who develop GVHD. We undertook a systematic review of studies that reported the Treg composition of HSCT grafts in patients with haematological malignancies. Fourteen eligible studies were identified, eight of which stratified patients by Tregs (absolute dose or ratio to CD3+ or CD4+ cells)...
January 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28094550/pharmacophore-modelling-atom-based-3d-qsar-generation-and-virtual-screening-of-molecules-projected-for-mpges-1-inhibitory-activity
#16
S Misra, M Saini, H Ojha, D Sharma, K Sharma
COX-2 inhibitors exhibit anticancer effects in various cancer models but due to the adverse side effects associated with these inhibitors, targeting molecules downstream of COX-2 (such as mPGES-1) has been suggested. Even after calls for mPGES-1 inhibitor design, to date there are only a few published inhibitors targeting the enzyme and displaying anticancer activity. In the present study, we have deployed both ligand and structure-based drug design approaches to hunt novel drug-like candidates as mPGES-1 inhibitors...
January 17, 2017: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/28094503/controlled-doping-in-graphene-monolayers-by-trapping-organic-molecules-at-graphene-substrate-interface
#17
Pawan Kumar Srivastava, Premlata Yadav, Varsha Rani, Subhasis Ghosh
We report controlled doping in graphene monolayers through charge transfer interaction by trapping selected organic molecules between graphene and underneath substrates. Controllability has been demonstrated in terms of shift in Raman spectra and Dirac point in graphene monolayers. The shift in the Dirac point to positive (negative) gate bias in the transfer characteristics of graphene monolayer based field effect transistor is a clear indication of p(n) type doping in graphene as a consequence of charge transfer interaction between organic molecules and graphene...
January 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28094327/rapid-adaptation-drives-invasion-of-airway-donor-microbiota-by-pseudomonas-after-lung-transplantation
#18
M Beaume, T Köhler, G Greub, O Manuel, J-D Aubert, L Baerlocher, L Farinelli, A Buckling, C van Delden
In cystic fibrosis (CF) patients, chronic airway infection by Pseudomonas leads to progressive lung destruction ultimately requiring lung transplantation (LT). Following LT, CF-adapted Pseudomonas strains, potentially originating from the sinuses, may seed the allograft leading to infections and reduced allograft survival. We investigated whether CF-adapted Pseudomonas populations invade the donor microbiota and adapt to the non-CF allograft. We collected sequential Pseudomonas isolates and airway samples from a CF-lung transplant recipient during two years, and followed the dynamics of the microbiota and Pseudomonas populations...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093967/anchored-lentiviral-vector-episomes-for-stem-cell-gene-therapy-in-fanconi-anemia
#19
Santhosh Chakkaramakkil Verghese, Peter Kurre
Fanconi anemia (FA) is an autosomal recessive¬, multisystem DNA repair disorder with prominent defects in hematopoietic stem cell maintenance that result in their progressive attrition and failure in early school age. Allogeneic stem cell transplantation has proved curative for patients with suitable donors. This, along with the characteristic survival advantage of phenotypically normal over non-corrected FA stem cells underscores the compelling rationale for stem cell gene therapy in FA. While integrating lentiviral vectors (LV) have become the preferred platform for genetic correction in several hematologic and immunodeficiency disorders, the residual oncogenic potential by these vectors raises concerns in FA stem cells with potentially preexisting genetic lesions...
January 13, 2017: Current Gene Therapy
https://www.readbyqxmd.com/read/28092488/low-level-laser-therapy-in-enhancing-wound-healing-and-preserving-tissue-thickness-at-free-gingival-graft-donor-sites-a-randomized-controlled-clinical-study
#20
Gulbahar Ustaoglu, Esra Ercan, Mustafa Tunali
OBJECTIVE: The aim of this study was to determine the effects of low-level laser therapy (LLLT) on wound healing at free gingival graft (FGG) donor sites. MATERIALS AND METHODS: Forty patients requiring FGG were selected for this randomized, controlled, and double-blinded prospective clinical trial. The FGG donor sites were treated with LLLT and compared with an untreated control group. The Wound-Healing Index (WHI), tissue consistency, color match, and H2O2 bubbling test for the evaluation of complete wound epithelialization were recorded on the 3rd, 7th, 14th and 21st days...
January 12, 2017: Photomedicine and Laser Surgery
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