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https://www.readbyqxmd.com/read/28817832/successful-use-of-grenz-rays-for-disseminated-superficial-actinic-porokeratosis-report-of-8-cases
#1
Egle Ramelyte, Matilda Bylaite-Bucinskiene, Reinhard Dummer, Laurence Imhof
BACKGROUND: Disseminated superficial actinic porokeratosis (DSAP) is a rare keratinization disorder with potential malignant transformation, for which present treatment strategies show limited success. AIM: To evaluate the response of DSAP lesions to grenz ray radiotherapy (RTx). METHODS: Data of patients treated with RTx at University Hospital Zurich, Switzerland, between 2004 and 2015, were reviewed. Patients with DSAP, who received at least 1 RTx treatment session and who had been followed up for at least 4 weeks were included in the further data analysis...
August 18, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28817583/dextran-sodium-sulfate-dss-induces-necrotizing-enterocolitis-like-lesions-in-neonatal-mice
#2
Marco Ginzel, Xiaoyan Feng, Joachim F Kuebler, Christian Klemann, Yi Yu, Reinhard von Wasielewski, Joon-Keun Park, Mathias W Hornef, Gertrud Vieten, Benno M Ure, Torsten Kaussen, Jan Hendrik Gosemann, Steffi Mayer, Anne Suttkus, Martin Lacher
BACKGROUND: Necrotizing enterocolitis (NEC) is an inflammatory bowel disease of preterm human newborns with yet unresolved etiology. An established neonatal murine model for NEC employs oral administration of lipopolysaccharides (LPS) combined with hypoxia/hypothermia. In adult mice, feeding dextran sodium sulfate (DSS) represents a well-established model for experimental inflammatory bowel disease. Here we investigated the effect of DSS administration on the neonatal murine intestine in comparison with the established NEC model...
2017: PloS One
https://www.readbyqxmd.com/read/28817210/varus-knee-osteoarthritis-elevated-synovial-cd15-counts-correlate-with-inferior-biomechanical-properties-of-lateral-compartment-cartilage
#3
Ulrich Koller, Wenzel Waldstein, Veit Krenn, Reinhard Windhager, Friedrich Boettner
The study analyzed the influence of synovitis on the histological and biomechanical properties of lateral-compartment cartilage. In a prospective cohort study, 84 patients (100 knees) with varus deformity of the knee were included. Osteochondral samples from the distal lateral femur underwent biomechanical and histologic analysis. Synovial tissue was sampled for histological (chronic synovitis score) and immunohistochemical evaluation of the degree of synovitis. CD15 (neutrophils), Ki-67 (dividing cells) and CD68 (macrophages) were tested in all synovial samples...
August 17, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28816074/prostate-specific-antigen-after-salvage-radiotherapy-for-postprostatectomy-biochemical-recurrence-predicts-long-term-outcome-including-overall-survival
#4
Detlef Bartkowiak, Reinhard Thamm, Dirk Bottke, Alessandra Siegmann, Dirk Böhmer, Volker Budach, Thomas Wiegel
BACKGROUND: For patients with recurrent prostate cancer after radical prostatectomy (RP), salvage radiotherapy (SRT) is a second chance of cure. However, depending on risk factors, 40-70% of the patients experience further progression. With a focus on the pre- and post-SRT serum level of the prostate-specific antigen (PSA), we assessed the determinants of the long-term outcome after SRT. PATIENT AND METHODS: Between 1997 and 2011, 464 patients received 3D-conformal SRT with median 66...
August 17, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28814886/a-practical-guide-to-the-handling-and-administration-of-talimogene-laherparepvec-in-europe
#5
REVIEW
Kevin J Harrington, Olivier Michielin, Josep Malvehy, Isabella Pezzani Grüter, Lorna Grove, Anna Lisa Frauchiger, Reinhard Dummer
Talimogene laherparepvec is a herpes simplex virus-1-based intralesional oncolytic immunotherapy and is the first oncolytic virus to be approved in Europe. It is indicated for the treatment of adults with unresectable melanoma that is regionally or distantly metastatic (stage IIIB, IIIC, and IVM1a) with no bone, brain, lung, or other visceral disease. Talimogene laherparepvec is a genetically modified viral therapy, and its handling needs special attention due to its deep freeze, cold-chain requirements, its potential for viral shedding, and its administration by direct intralesional injection...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28808741/stable-isotope-raman-microspectroscopy-for-the-analysis-of-soil-organic-matter
#6
Alexandra C Wiesheu, Ramona Brejcha, Carsten W Mueller, Ingrid Kögel-Knabner, Martin Elsner, Reinhard Niessner, Natalia P Ivleva
We examined the potential of stable-isotope Raman microspectroscopy (SIRM) for the evaluation of differently enriched (13)C-labeled humic acids as model substances for soil organic matter (SOM). The SOM itself can be linked to the soil water holding capacity. Therefore, artificial humic acids (HA) with known isotopic compositions were synthesized and analyzed by means of SIRM. By performing a pregraphitization, a suitable analysis method was developed to cope with the high fluorescence background. Results were verified against isotope ratio mass spectrometry (IRMS)...
August 14, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28806539/clinical-and-microstructural-findings-in-paget-disease-of-the-entire-mandible
#7
Reinhard E Friedrich, Andreas M Luebke, Michael Amling, Till Koehne
Paget disease of bone (PDB) is a chronic progressive bone disorder characterized by localized increased bone turnover and focal areas of woven bone formation. Although skull involvement is common, PDB very rarely affects the mandible. This report describes the clinical and histologic findings in a 75-year-old patient with PDB involving the mandible. Microstructural analyses showed an altered quality of the bone microstructure and calcium depletion of the affected bone. Differential diagnosis of PDB affecting the mandible is discussed...
July 20, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28803482/corynebacterium-glutamicum-chassis-c1-building-and-testing-a-novel-platform-host-for-synthetic-biology-and-industrial-biotechnology
#8
Meike Baumgart, Simon Unthan, Ramona Kloss, Andreas Radek, Tino Polen, Niklas Tenhaef, Moritz Fabian Müller, Andreas Küberl, Daniel Siebert, Natalie Brühl, Kay Marin, Stephan Hans, Reinhard Krämer, Michael Bott, Joern Kalinowski, Wolfgang Wiechert, Gerd Seibold, Julia Frunzke, Christian Rückert, Volker Wendisch, Stephan Noack
Targeted top-down strategies for genome reduction are considered to have a high potential for providing robust basic strains for synthetic biology and industrial biotechnology. Recently, we created a library of 26 genome-reduced strains of Corynebacterium glutamicum carrying broad deletions in single gene clusters and showing wild-type-like biological fitness. Here, we proceeded with combinatorial deletions of these irrelevant gene clusters in two parallel orders and the resulting library of 28 strains was characterized under various environmental conditions...
August 14, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28802829/embryonic-zebrafish-primary-cell-culture-for-transfection-and-live-cellular-and-subcellular-imaging
#9
Wiebke A Sassen, Franziska Lehne, Giulio Russo, Sven Wargenau, Stefan Dübel, Reinhard W Köster
Although having great potential for live cell imaging to address numerous cell biological questions with high spatial and temporal resolution, primary cell cultures of zebrafish embryos are not widely used. We present an easy-to-use protocol for preparing primary cell cultures of 2 dpf zebrafish embryos allowing for live cell imaging of fully differentiated cells such as neurons and myocytes. We demonstrate that different cell types can be identified by morphology and expression of transgenic cell type-specific fluorescent reporters and that fluorescent cells can be sorted by flow cytometry to prepare an enriched culture...
August 9, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28802024/the-cereal-pathogen-fusarium-pseudograminearum-produces-a-new-class-of-active-cytokinins-during-infection
#10
Jens Laurids Sørensen, Aurelie H Benfield, Rasmus Dam Wollenberg, Klaus Westphal, Reinhard Wimmer, Mikkel Rank Nielsen, Kristian Fog Nielsen, Jason Carere, Lorenzo Covarelli, Giovanni Beccari, Jonathan Powell, Takafumi Yamashino, Herbert Kogler, Teis Esben Sondergaard, Donald Max Gardiner
The fungal pathogen Fusarium pseudograminearum causes important diseases of wheat and barley. During a survey of secondary metabolites produced by this fungus, a novel class of cytokinins, herein termed Fusarium cytokinins, was discovered. Cytokinins are known for their growth promoting and anti-senescence activities and the production of a cytokinin mimic by what was once considered a necrotrophic pathogen that promotes cell death and senescence challenges the simple view that this pathogen invades its hosts by employing a barrage of lytic enzymes and toxins...
August 12, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28800629/protective-effects-on-the-retina-after-ranibizumab-treatment-in-an-ischemia-model
#11
Stephanie C Joachim, Marina Renner, Jacqueline Reinhard, Carsten Theiss, Caroline May, Stephanie Lohmann, Sabrina Reinehr, Gesa Stute, Andreas Faissner, Katrin Marcus, H Burkhard Dick
Retinal ischemia is common in eye disorders, like diabetic retinopathy or retinal vascular occlusion. The goal of this study was to evaluate the potential protective effects of an intravitreally injected vascular endothelial growth factor (VEGF) inhibitor (ranibizumab) on retinal cells in an ischemia animal model via immunohistochemistry (IF) and quantitative real-time PCR (PCR). A positive binding of ranibizumab to rat VEGF-A was confirmed via dot blot. One eye underwent ischemia and a subgroup received ranibizumab...
2017: PloS One
https://www.readbyqxmd.com/read/28800079/challenging-the-metallothionein-mt-gene-of-biomphalaria-glabrata-unexpected-response-patterns-due-to-cadmium-exposure-and-temperature-stress
#12
Michael Niederwanger, Martin Dvorak, Raimund Schnegg, Veronika Pedrini-Martha, Katharina Bacher, Massimo Bidoli, Reinhard Dallinger
Metallothioneins (MTs) are low-molecular-mass, cysteine-rich, metal binding proteins. In most animal species, they are involved in metal homeostasis and detoxification, and provide protection from oxidative stress. Gastropod MTs are highly diversified, exhibiting unique features and adaptations like metal specificity and multiplications of their metal binding domains. Here, we show that the MT gene of Biomphalaria glabrata, one of the largest MT genes identified so far, is composed in a unique way. The encoding for an MT protein has a three-domain structure and a C-terminal, Cys-rich extension...
August 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28795634/silencing-of-rbohf2-causes-leaf-age-dependent-accelerated-senescence-salicylic-acid-accumulation-and-powdery-mildew-resistance-in-barley
#13
Denise Pereira Torres, Reinhard Korbinian Proels, Harald Schempp, Ralph Huckelhoven
Plant RBOH (RESPIRATORY BURST OXIDASE HOMOLOGUES)-type NADPH oxidases produce superoxide radical anions and have a function in developmental processes and in response to environmental challenges. Barley RBOHF2 has different reported functions in interaction with the biotrophic powdery mildew fungus Blumeria graminis f.sp. hordei. Here we analysed in detail, plant leaf level- and leaf age-specific susceptibility of stably RBOHF2-silenced barley plants. This revealed enhanced susceptibility to fungal penetration of young RBOHF2-silenced leaf tissue but strongly reduced susceptibility of older leaves when compared to controls...
August 10, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/28790839/isolated-thoracic-perfusion-with-chemofiltration-for-progressive-malignant-pleural-mesothelioma
#14
Karl Reinhard Aigner, Emir Selak, Sabine Gailhofer
INTRODUCTION: Therapy of malignant pleural mesothelioma and especially the adequate role of surgery in this context remain the subject of controversial discussions. Radical surgery in particular, which is associated with substantial morbidity, failed to translate into a definite survival advantage. We report on interim results of an ongoing Phase II study of regional chemotherapy in terms of isolated thoracic perfusion with chemofiltration (ITP-F). PATIENTS AND METHODS: Twenty-eight patients (25 male, 3 female, mean age 63...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28783336/optimization-of-enzyme-mechanism-along-the-evolutionary-trajectory-of-a-computationally-designed-retro-aldolase
#15
Cathleen Zeymer, Reinhard Zschoche, Donald Hilvert
De novo biocatalysts have been successfully generated by computational design and subsequent experimental optimization. Here, we examined the evolutionary history of the computationally designed (retro-)aldolase RA95. The modest activity of the starting enzyme was previously improved 10(5) fold over many rounds of mutagenesis and screening to afford a proficient biocatalyst for enantioselective cleavage and synthesis of β-hydroxyketones. Using a set of representative RA95 variants, we probed individual steps in the multistep reaction pathway to determine which processes limit steady-state turnover and how mutations that accumulated along the evolutionary trajectory influenced the kinetic mechanism...
August 7, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28781790/somatic-brca1-associated-protein-1-bap1-loss-is-an-early-and-rare-event-in-esophageal-adenocarcinoma
#16
Heike Loeser, Dirk Waldschmidt, Fabian Kuetting, Simon Schallenberg, Thomas Zander, Elfriede Bollschweiler, Arnulf Hoelscher, Katharina Weckermann, Patrick Plum, Hakan Alakus, Reinhard Buettner, Alexander Quaas
Esophageal cancer is the eighth most common malignant tumor worldwide, and the number of incidences of esophageal adenocarcinoma is increasing in the Western world. Despite improvements in perioperative treatment, the overall survival rate of patients with esophageal adenocarcinoma remains poor. Breast cancer type 1 susceptibility protein (BRCA1)-associated protein (BAP1) is located on chromosome 3p21, and it is an enzyme with ubiquitin carboxyl hydrolase activity that regulates cell growth. It interacts with BRCA1, and the nuclear localization of BAP1 is required for its tumor suppressor function...
August 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28781166/cryo-em-structure-of-a-pre-catalytic-human-spliceosome-primed-for-activation
#17
Karl Bertram, Dmitry E Agafonov, Olexandr Dybkov, David Haselbach, Majety N Leelaram, Cindy L Will, Henning Urlaub, Berthold Kastner, Reinhard Lührmann, Holger Stark
Little is known about the spliceosome's structure before its extensive remodeling into a catalytically active complex. Here, we report a 3D cryo-EM structure of a pre-catalytic human spliceosomal B complex. The U2 snRNP-containing head domain is connected to the B complex main body via three main bridges. U4/U6.U5 tri-snRNP proteins, which are located in the main body, undergo significant rearrangements during tri-snRNP integration into the B complex. These include formation of a partially closed Prp8 conformation that creates, together with Dim1, a 5' splice site (ss) binding pocket, displacement of Sad1, and rearrangement of Brr2 such that it contacts its U4/U6 substrate and is poised for the subsequent spliceosome activation step...
August 10, 2017: Cell
https://www.readbyqxmd.com/read/28776026/reconstitution-of-calcium-mediated-exocytosis-of-dense-core-vesicles
#18
Alex J B Kreutzberger, Volker Kiessling, Binyong Liang, Patrick Seelheim, Shrutee Jakhanwal, Reinhard Jahn, J David Castle, Lukas K Tamm
Regulated exocytosis is a process by which neurotransmitters, hormones, and secretory proteins are released from the cell in response to elevated levels of calcium. In cells, secretory vesicles are targeted to the plasma membrane, where they dock, undergo priming, and then fuse with the plasma membrane in response to calcium. The specific roles of essential proteins and how calcium regulates progression through these sequential steps are currently incompletely resolved. We have used purified neuroendocrine dense-core vesicles and artificial membranes to reconstruct in vitro the serial events that mimic SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor)-dependent membrane docking and fusion during exocytosis...
July 2017: Science Advances
https://www.readbyqxmd.com/read/28772107/family-specific-aggregation-of-lipid-gwas-variants-confers-the-susceptibility-to-familial-hypercholesterolemia-in-a-large-austrian-family
#19
Elina Nikkola, Arthur Ko, Marcus Alvarez, Rita M Cantor, Kristina Garske, Elliot Kim, Stephanie Gee, Alejandra Rodriguez, Reinhard Muxel, Niina Matikainen, Sanni Söderlund, Mahdi M Motazacker, Jan Borén, Claudia Lamina, Florian Kronenberg, Wolfgang J Schneider, Aarno Palotie, Markku Laakso, Marja-Riitta Taskinen, Päivi Pajukanta
BACKGROUND AND AIMS: Hypercholesterolemia confers susceptibility to cardiovascular disease (CVD). Both serum total cholesterol (TC) and LDL-cholesterol (LDL-C) exhibit a strong genetic component (heritability estimates 0.41-0.50). However, a large part of this heritability cannot be explained by the variants identified in recent extensive genome-wide association studies (GWAS) on lipids. Our aim was to find genetic causes leading to high LDL-C levels and ultimately CVD in a large Austrian family presenting with what appears to be autosomal dominant inheritance for familial hypercholesterolemia (FH)...
July 22, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28771890/metamizole-use-during-first-trimester-a-prospective-observational-cohort-study-on-pregnancy-outcome
#20
Katarina Dathe, Stephanie Padberg, Stefanie Hultzsch, Katja Meixner, Tatjana Tissen-Diabaté, Reinhard Meister, Evelin Beck, Christof Schaefer
INTRODUCTION: The analgesic metamizole (dipyrone) is not recommended during pregnancy due to limited experience. In several countries, metamizole has no market authorization because of agranulocytosis as a rare but severe adverse effect. However, in others, metamizole is available and widely used as a pain reliever, and its use occurs also during pregnancy, often followed by fears of potential teratogenic risk. METHODS: This prospective observational cohort study compared pregnancy outcomes of 446 women exposed with metamizole in the first trimester with a randomly selected control cohort comprising 887 women not exposed to metamizole...
August 3, 2017: Pharmacoepidemiology and Drug Safety
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