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https://www.readbyqxmd.com/read/29775303/simultaneous-targeting-of-rgd-integrins-and-dual-murine-double-minute-proteins-in-glioblastoma-multiforme
#1
Francesco Merlino, Simona Daniele, Valeria La Pietra, Salvatore Di Maro, Francesco Saverio Di Leva, Diego Brancaccio, Stefano Tomassi, Stefano Giuntini, Linda Cerofolini, Marco Fragai, Claudio Luchinat, Florian Reichart, Chiara Cavallini, Barbara Costa, Rebecca Piccarducci, Sabrina Taliani, Federico Da Settimo, Claudia Martini, Horst Kessler, Ettore Novellino, Luciana Marinelli
In the fight against Glioblastoma Multiforme, recent literature data have highlighted that integrin α5β1 and p53 are part of convergent pathways in the control of glioma apoptosis. This observation prompted us to seek a molecule able to simultaneously modulate both target families. Analyzing the results of a previous virtual screening against murine double minute 2 protein (MDM2), we envisaged that Arg-Gly-Asp (RGD)-mimetic molecules could be inhibitors of MDM2/4. Herein we present the discovery of compound 7, which inhibits both MDM2/4 and α5β1/αvβ3 integrins...
May 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29775186/strong-antisymmetric-spin-orbit-coupling-and-superconducting-properties-the-case-of-noncentrosymmetric-laptsi
#2
Sabrina Palazzese, Javier F Landaeta, Diego Subero, Ernst Bauer, Ismardo Bonalde
In this work we aim to analyze the effect of a strong antisymmetric spin-orbit coupling (ASOC) on superconductivity of noncentrosymmetric LaPtSi. We study the energy gap structure of polycrystalline LaPtSi by using magnetic penetration depth measurements down to 0.02$T_c$. We observed a dirty s-wave behavior, which firmly evidence that the spin-singlet component of the mixed pairing state is highly dominant. This is consistent with previous results in the sense that the mere presence of a strong ASOC does not lead to unconventional behaviors...
May 18, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29774860/importation-of-human-seoul-virus-infection-to-germany-from-indonesia
#3
Jörg Hofmann, Sabrina Weiss, Martin Kuhns, Annekathrin Zinke, Heike Heinsberger, Detlev H Kruger
Seoul hantavirus-associated hemorrhagic fever with renal syndrome cases are rare outside Asia and have not yet been found in Germany. We report clinical and molecular evidence for a Seoul virus infection in a patient in Germany. The infection was most likely acquired during a stay in Sulawesi, Indonesia.
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29772920/a-contagious-disorder-folie-%C3%A3-deux-and-dementia
#4
Gabriele Cipriani, Noha Abdel-Gawad, Sabrina Danti, Mario Di Fiorino
BACKGROUND: Folie à deux is a clinical condition that was first described in 19th century. It is a psychotic disorder in which two closely associated individuals share a similar delusional system. OBJECTIVES: The aim of this article is to review the nosological significance of folie à deux and to explore the disorder among patients with dementia. METHODS: Medline and Google Scholar searches were conducted for relevant articles, chapters, and books published before 2017...
January 1, 2018: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/29770129/cutaneous-papillomaviruses-and-non-melanoma-skin-cancer-causal-agents-or-innocent-bystanders
#5
REVIEW
Daniel Hasche, Sabrina E Vinzón, Frank Rösl
There is still controversy in the scientific field about whether certain types of cutaneous human papillomaviruses (HPVs) are causally involved in the development of non-melanoma skin cancer (NMSC). Deciphering the etiological role of cutaneous HPVs requires - besides tissue culture systems - appropriate preclinical models to match the obtained results with clinical data from affected patients. Clear scientific evidence about the etiology and underlying mechanisms involved in NMSC development is fundamental to provide reasonable arguments for public health institutions to classify at least certain cutaneous HPVs as group 1 carcinogens...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29769402/gtsf-1-is-required-for-formation-of-a-functional-rna-dependent-rna-polymerase-complex-in-caenorhabditis-elegans
#6
Miguel Vasconcelos Almeida, Sabrina Dietz, Stefan Redl, Emil Karaulanov, Andrea Hildebrandt, Christian Renz, Helle D Ulrich, Julian König, Falk Butter, René F Ketting
Argonaute proteins and their associated small RNAs (sRNAs) are evolutionarily conserved regulators of gene expression. Gametocyte-specific factor 1 (Gtsf1) proteins, characterized by two tandem CHHC zinc fingers and an unstructured C-terminal tail, are conserved in animals and have been shown to interact with Piwi clade Argonautes, thereby assisting their activity. We identified the Caenorhabditis elegans Gtsf1 homolog, named it gtsf-1 and characterized it in the context of the sRNA pathways of C. elegans We report that GTSF-1 is not required for Piwi-mediated gene silencing...
May 16, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29769294/pulmonary-function-tests-as-outcomes-for-systemic-sclerosis-interstitial-lung-disease
#7
REVIEW
Melissa Caron, Sabrina Hoa, Marie Hudson, Kevin Schwartzman, Russell Steele
Interstitial lung disease (ILD) is the leading cause of morbidity and mortality in systemic sclerosis (SSc). We performed a systematic review to characterise the use and validation of pulmonary function tests (PFTs) as surrogate markers for systemic sclerosis-associated interstitial lung disease (SSc-ILD) progression.Five electronic databases were searched to identify all relevant studies. Included studies either used at least one PFT measure as a longitudinal outcome for SSc-ILD progression ( i.e. outcome studies) and/or reported at least one classical measure of validity for the PFTs in SSc-ILD ( i...
June 30, 2018: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/29768553/high-risk-behaviors-for-hepatitis-b-and-c-infections-among-female-sex-workers
#8
Marco Antonio Moreira Puga, Larissa Melo Bandeira, Sabrina Moreira Dos Santos Weis, Fernanda Rodas Pires Fernandes, Lisie Souza Castro, Tayana Serpa Ortiz Tanaka, Grazielli Rocha de Rezende, Sheila Araújo Teles, Vivianne de Oliveira Landgraf de Castro, Paula Guerra Murat, Gina Jonasson Mousquer Capelin, Ana Rita Coimbra Motta-Castro
INTRODUCTION: The prevalence of hepatitis B and hepatitis C and risk behaviors among 402 female sex workers in Central Brazil were investigated by respondent-driven sampling. METHODS: Blood samples were tested for hepatitis B and C markers by enzyme-linked immunosorbent assay. Two hepatitis B vaccination schedules were performed. RESULTS: The prevalence of hepatitis B and C infections were 9.3% and 0.5%, respectively. Susceptibility to hepatitis B infection was observed in 61...
March 2018: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29767742/bed-management-team-with-kanban-web-based-application
#9
Hermano Alexandre Lima Rocha, Ana Kelly Lima da Cruz Santos, Antônia Celia de Castro Alcântara, Carmen Sulinete Suliano da Costa Lima, Sabrina Gabriele Maia Oliveira Rocha, Roberto Melo Cardoso, Jair Rodrigues Cremonin
Objective: To measure the effectiveness of the bed management process that uses a web-based application with Kanban methodology to reduce hospitalization time of hospitalized patients. Design: Before-after study was performed. Setting: The study was conducted between July 2013 and July 2017, at the Unimed Regional Hospital of Fortaleza, which has 300 beds, of which 60 are in the intensive care unit (ICU). It is accredited by International Society for Quality in Healthcare...
May 15, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29767707/preantral-follicular-atresia-occurs-mainly-through-autophagy-while-antral-follicles-degenerate-mostly-through-apoptosis
#10
Li Meng, Sabrina Z Jan, Geert Hamer, Ans M van Pelt, Inge van der Stelt, Jaap Keijer, Katja J Teerds
There is general agreement that granulosa cell apoptosis is the cause of antral follicle attrition. Less clear is whether this pathway is also activated in case of preantral follicle degeneration, as several reports mention that the incidence of granulosa cell apoptosis in preantral follicles is negligible. Our objective is therefore to determine which cell-death pathways are involved in preantral and antral follicular degeneration.Atretic preantal and antral follicles were investigated using immunohistochemistry and laser-capture micro-dissection followed by qRT-PCR...
May 14, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29766771/five-year-risk-of-stroke-after-tia-or-minor-ischemic-stroke
#11
Pierre Amarenco, Philippa C Lavallée, Linsay Monteiro Tavares, Julien Labreuche, Gregory W Albers, Halim Abboud, Sabrina Anticoli, Heinrich Audebert, Natan M Bornstein, Louis R Caplan, Manuel Correia, Geoffrey A Donnan, José M Ferro, Fernando Gongora-Rivera, Wolfgang Heide, Michael G Hennerici, Peter J Kelly, Michal Král, Hsiu-Fen Lin, Carlos Molina, Jong Moo Park, Francisco Purroy, Peter M Rothwell, Tomas Segura, David Školoudík, P Gabriel Steg, Pierre-Jean Touboul, Shinichiro Uchiyama, Éric Vicaut, Yongjun Wang, Lawrence K S Wong
Background After a transient ischemic attack (TIA) or minor stroke, the long-term risk of stroke and other vascular events is not well known. In this follow-up to a report on 1-year outcomes from a registry of TIA clinics in 21 countries that enrolled 4789 patients with a TIA or minor ischemic stroke from 2009 through 2011, we examined the 5-year risk of stroke and vascular events. Methods We evaluated patients who had had a TIA or minor stroke within 7 days before enrollment in the registry. Among 61 sites that participated in the 1-year outcome study, we selected 42 sites that had follow-up data on more than 50% of their enrolled patients at 5 years...
May 16, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29766320/weaning-from-prolonged-veno-venous-extracorporeal-membrane-oxygenation-ecmo-after-transfer-to-a-specialized-center-a-retrospective-study
#12
Frederik Seiler, Franziska C Trudzinski, Sabrina I Hörsch, Annegret Kamp, Carlos Metz, Monika Flaig, Mohammad Alqudrah, Holger Wehrfritz, Markus Kredel, Ralf M Muellenbach, Hendrik Haake, Robert Bals, Philipp M Lepper
Veno-venous extracorporeal membrane oxygenation (vvECMO) is increasingly used as rescue therapy in severe respiratory failure. In patients with pre-existent lung diseases or persistent lung injury weaning from vvECMO can be challenging. This study sought to investigate outcomes of patients transferred to a specialized ECMO center after prolonged ECMO therapy. We performed a retrospective analysis of all patients admitted to our medical intensive care unit (ICU) between 01/2013 and 12/2016 who were transferred from an external ICU after > 8 days on vvECMO...
May 15, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29766245/-18-f-dopa-pet-cect-in-diagnosis-and-staging-of-primary-medullary-thyroid-carcinoma-prior-to-surgery
#13
Sazan Rasul, Sabrina Hartenbach, Katharina Rebhan, Adelina Göllner, Georgios Karanikas, Marius Mayerhoefer, Peter Mazal, Marcus Hacker, Markus Hartenbach
PURPOSE: Medullary thyroid carcinoma (MTC) is characterized by a high rate of metastasis. In this study we evaluated the ability of [18 F]DOPA PET/ceCT to stage MTC in patients with suspicious thyroid nodules and pathologically elevated serum calcitonin (Ctn) levels prior to total thyroidectomy and lymph node (LN) dissection. METHODS: A group of 32 patients with sonographically suspicious thyroid nodules and pathologically elevated basal Ctn (bCtn) and stimulated Ctn (sCtn) levels underwent DOPA PET/ceCT prior to surgery...
May 15, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29763780/polymorphonuclear-neutrophil-integrity-and-functionality-are-preserved-when-exposed-to-saliva
#14
Patrick Rijkschroeff, Sabrina T G Gunput, Antoon J M Ligtenberg, Enno C I Veerman, Bruno G Loos, Elena A Nicu
OBJECTIVE: Polymorphonuclear neutrophils (PMNs) are the most abundant innate immune cells and are also important effectors in the maintenance of oral health. However, little is known about the effects of saliva on the PMN. We therefore aimed to investigate the effect of saliva on the PMNs' morphology and functioning. DESIGN: Effect of saliva on the membrane integrity of PMNs isolated from blood was evaluated with FACS using Annexin V (apoptosis marker) and propidum iodide (membrane integrity marker)...
May 1, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29763650/reanalyzing-the-palaeoptera-problem-the-origin-of-insect-flight-remains-obscure
#15
Sabrina Simon, Alexander Blanke, Karen Meusemann
The phylogenetic relationships of the winged insect lineages - mayflies (Ephemeroptera), damselflies and dragonflies (Odonata), and all other winged insects (Neoptera) - are still controversial, with three hypotheses supported by different datasets: Palaeoptera, Metapterygota and Chiastomyaria. Here, we reanalyze available phylogenomic data with a focus on detecting confounding and alternative signal. In this context, we provide a framework to quantitatively evaluate and assess incongruent molecular phylogenetic signal inherent in phylogenomic datasets...
May 12, 2018: Arthropod Structure & Development
https://www.readbyqxmd.com/read/29763498/effect-of-avocado-soybean-unsaponifiables-asu-on-osseointegration-in-rats-with-experimental-arthritis
#16
Luiz Guilherme Freitas de Paula, Guilherme José Pimentel Lopes de Oliveira, Felipe Eduardo Pinotti, Bruna Biagioni Grecchi, Sabrina Garcia de Aquino, Rosemary Adriana Chiérici Marcantonio
PURPOSE: To evaluate the influence of the use of avocado/soybean unsaponifiables (ASU) on osseointegration of implants in animals with experimental arthritis. MATERIALS AND METHODS: One hundred twenty rats were randomly divided into four groups: CTR, healthy animals and saline solution administration; ASU, healthy animals and ASU administration; ART, arthritic animals and saline solution administration; and ART/ASU, arthritic animals and ASU administration. The solutions were administered daily by gavage, beginning 7 days before the surgical procedures until the completion of the experimental period (15, 30, and 60 days after the placement of the implants in the tibia)...
May 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29762696/blocking-of-an-intronic-splicing-silencer-completely-rescues-ikbkap-exon-20-splicing-in-familial-dysautonomia-patient-cells
#17
Gitte H Bruun, Jeanne Mv Bang, Lise L Christensen, Sabrina Brøner, Ulrika Ss Petersen, Barbara Guerra, Alexander Gb Grønning, Thomas K Doktor, Brage S Andresen
Familial dysautonomia (FD) is a severe genetic disorder causing sensory and autonomic dysfunction. It is predominantly caused by a c.2204+6T>C mutation in the IKBKAP gene. This mutation decreases the 5' splice site strength of IKBKAP exon 20 leading to exon 20 skipping and decreased amounts of full-length IKAP protein. We identified a binding site for the splicing regulatory protein hnRNP A1 downstream of the IKBKAP exon 20 5'-splice site. We show that hnRNP A1 binds to this splicing regulatory element (SRE) and that two previously described inhibitory SREs inside IKBKAP exon 20 are also bound by hnRNP A1...
May 14, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29762544/femtosecond-laser-texturing-of-surfaces-for-tribological-applications
#18
Jörn Bonse, Sabrina V Kirner, Michael Griepentrog, Dirk Spaltmann, Jörg Krüger
Laser texturing is an emerging technology for generating surface functionalities on basis of optical, mechanical, or chemical properties. Taking benefit of laser sources with ultrashort (fs) pulse durations features outstanding precision of machining and negligible rims or burrs surrounding the laser-irradiation zone. Consequently, additional mechanical or chemical post-processing steps are usually not required for fs-laser surface texturing (fs-LST). This work aimed to provide a bridge between research in the field of tribology and laser materials processing...
May 15, 2018: Materials
https://www.readbyqxmd.com/read/29762102/dynamic-encoding-of-effort-and-reward-throughout-the-execution-of-action-by-external-globus-pallidus-neurons-in-monkeys
#19
Simon Nougaret, Sabrina Ravel
Humans and animals must evaluate the costs and expected benefits of their actions to make adaptive choices. Prior studies have demonstrated the involvement of the BG in this evaluation. However, little is known about the role of the external part of the globus pallidus (GPe), which is well positioned to integrate motor and reward-related information, in this process. To investigate this role, the activity of 126 neurons was recorded in the associative and limbic parts of the GPe of two monkeys performing a behavioral task in which different levels of force were required to obtain different amounts of liquid reward...
May 15, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29761907/enantiomeric-and-diastereomeric-self-assembled-multivalent-samul-nanostructures-understanding-the-effects-of-chirality-on-binding-to-polyanionic-heparin-and-dna
#20
Kiri Thornalley, Erik Laurini, Sabrina Pricl, David K Smith
A family of four self-assembling lipopeptides containing Ala-Lys peptides attached to a C16 aliphatic chain was synthesised. These compounds form two enantiomeric pairs that bear a diastereomeric relationship to one another (C16-L-Ala-L-Lys/C16-D-Ala-D-Lys) and (C16-D-Ala-L-Lys/C16-L-Ala-D-Lys). These diastereomeric pairs have very different critical micelle concentrations (CMCs), with LL/DD < DL/LD suggesting more effective assembly of the former. The self-assembled multivalent (SAMul) systems bind biological polyanions as result of the cationic lysine groups on their surfaces...
May 15, 2018: Angewandte Chemie
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