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https://www.readbyqxmd.com/read/29790867/fluorine-18-fluorocholine-pet-ct-parameters-predictive-for-hematological-toxicity-to-radium-223-therapy-in-castrate-resistant-prostate-cancer-patients-with-bone-metastases-a-pilot-study
#1
Lavinia Vija Racaru, Mathieu Sinigaglia, Salim Kanoun, Fayçal Ben Bouallègue, Ilan Tal, Sévérine Brillouet, Mathilde Bauriaud-Mallet, Slimane Zerdoud, Lawrence Dierickx, Delphine Vallot, Olivier Caselles, Erwan Gabiache, Pierre Pascal, Frederic Courbon
PURPOSE: This study aims to predict hematological toxicity induced by Ra therapy. We investigated the value of metabolically active bone tumor volume (MBTV) and total bone lesion activity (TLA) calculated on pretreatment fluorine-18-fluorocholine (F-FCH) PET/CT in castrate-resistant prostate cancer (CRPC) patients with bone metastases treated with Ra radionuclide therapy. PATIENTS AND METHODS: F-FCH PET/CT imaging was performed in 15 patients with CRPC before treatment with Ra...
May 21, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29788233/autologous-haematopoietic-stem-cell-transplantation-for-crohn-s-disease-a-retrospective-survey-of-long-term-outcomes-from-the-european-society-for-blood-and-marrow-transplantation
#2
Charlotte K Brierley, Cristina Castilla-Llorente, Myriam Labopin, Manuela Badoglio, Montserrat Rovira, Elena Ricart, Daan Dierickx, Severine Vermeire, Peter Hasselblatt, Juergen Finke, Francesco Onida, Andrea Cassinotti, Jack Satsangi, Majid Kazmi, Antonio López-Sanromán, Carsten Schmidt, Dominique Farge, Simon P L Travis, Chris J Hawkey, John A Snowden
Background/Aims: Autologous haematopoietic stem cell transplantation (AHSCT) is a therapeutic option for patients with severe, treatment-refractory Crohn's disease (CD). The evidence base for AHSCT for CD is limited, with one randomised trial (ASTIC) suggesting benefit. The aim of this study was to evaluate safety and efficacy for patients undergoing AHSCT for CD in Europe outside the ASTIC trial. Methods: We identified 99 patients in the European Society for Blood and Marrow Transplantation (EBMT) registry who were eligible for inclusion...
May 18, 2018: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29787319/usefulness-of-multiple-electrode-aggregometry-as-a-screening-tool-for-bleeding-disorders-in-a-pediatric-hospital
#3
Thorsten Haas, Melissa M Cushing, Stephanie Varga, Séverine Gilloz, Markus Schmugge
Platelet function testing is a cornerstone in the diagnostic investigation of patients with a bleeding history. Multiple electrode aggregometry (MEA) has been shown to detect von Willebrand disease (VWD), platelet function disorders, and drug-induced bleeding disorders. However, there are few studies supporting its successful use in children. We have implemented and used MEA over 3 years in our hemostasis laboratory in order to study its usefulness to supplement and expedite diagnosis. This is a retrospective, single-center, cohort study of 109 hospitalized children who underwent a laboratory investigation of hemostasis and either had a reported bleeding history or an abnormal bleeding episode...
May 22, 2018: Platelets
https://www.readbyqxmd.com/read/29787248/efficient-n-doping-and-hole-blocking-in-single-walled-carbon-nanotube-transistors-with-1-2-4-5-tetrakis-tetramethyl-guanidino-benzene
#4
Severin Schneider, Maximilian Brohmann, Roxana Lorenz, Yvonne J Hofstetter, Marcel Rother, Eric Sauter, Michael Zharnikov, Yana Vaynzof, Hans-Joerg Himmel, Jana Zaumseil
Efficient, stable and solution-based n-doping of semiconducting single-walled carbon nanotubes (SWCNTs) is highly desired for complementary circuits but remains a significant challenge. Here we present 1,2,4,5-tetrakis(tetramethyl-guanidino)benzene (ttmgb) as a strong two-electron donor that enables the fabrication of purely n-type SWCNT field-effect transistors (FETs). We apply ttmgb to networks of monochiral, semiconducting (6,5) SWCNTs that show intrinsic ambipolar behavior in bottom-contact/top-gate FETs and obtain unipolar n-type transport with 3 to 5 fold enhancement of electron mobilities (approx...
May 22, 2018: ACS Nano
https://www.readbyqxmd.com/read/29786169/bangladeshi-children-with-acute-diarrhea-show-fecal-microbiomes-with-increased-streptococcus-abundance-irrespective-of-diarrhea-etiology
#5
Silas Kieser, Shafiqul A Sarker, Olga Sakwinska, Francis Foata, Shamima Sultana, Zeenat Khan, Shoheb Islam, Nadine Porta, Séverine Combremont, Bertrand Betrisey, Coralie Fournier, Aline Charpagne, Patrick Descombes, Annick Mercenier, Bernard Berger, Harald Brüssow
We report streptococcal dysbiosis in acute diarrhea irrespective of etiology. Compared to 20 healthy local controls, 71 Bangladeshi children hospitalized with acute diarrhea (AD) of viral, mixed viral/bacterial, bacterial and unknown etiology showed a significantly decreased bacterial diversity with loss of pathways characteristic for the healthy distal colon microbiome (mannan degradation, methylerythritol phosphate and thiamin biosynthesis), an increased proportion of fecal streptococci belonging to the Streptococcus bovis and Streptococcus salivarius species complexes, and an increased level of E...
May 22, 2018: Environmental Microbiology
https://www.readbyqxmd.com/read/29785684/impact-of-a-clinical-decision-support-system-for-drug-dosage-in-patients-with-renal-failure
#6
Sophie Desmedt, Anne Spinewine, Michel Jadoul, Séverine Henrard, Dominique Wouters, Olivia Dalleur
Background A clinical decision support system (CDSS) linked to the computerized physician order entry may help improve prescription appropriateness in inpatients with renal insufficiency. Objective To evaluate the impact on prescription appropriateness of a CDSS prescriber alert for 85 drugs in renal failure patients. Setting Before-after study in a 975-bed academic hospital. Method Prescriptions of patients with renal failure were reviewed during two comparable periods of 6 days each, before and after the implementation of the CDSS (September 2009 and 2010)...
May 21, 2018: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/29784451/randomized-trial-comparing-two-methods-of-re-irradiation-after-salvage-surgery-in-head-and-neck-squamous-cell-carcinoma-once-daily-split-course-radiotherapy-with-concomitant-chemotherapy-or-twice-daily-radiotherapy-with-cetuximab
#7
Yungan Tao, Laura Faivre, Anne Laprie, Pierre Boisselier, Christophe Ferron, Guy Michel Jung, Séverine Racadot, Bernard Gery, Caroline Even, Ingrid Breuskin, Jean Bourhis, François Janot
BACKGROUND: A previous randomized trial in recurrent Head and Neck squamous-cell carcinoma (HNSCC) has shown re-irradiation combined with chemotherapy after salvage surgery significantly improved disease-free survival (DFS). The objective of this randomized trial was to compare two methods of re-irradiation in terms of toxicity and survival. PATIENTS AND METHODS: Patients with recurrence/second primary in previously irradiated area were randomly allocated to receive either 60 Gy over 11 weeks with concomitant 5FU - hydroxyurea (VP-arm), or 60 Gy (1...
May 18, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29782486/clinical-socioeconomic-and-behavioural-factors-at-age-50-years-and-risk-of-cardiometabolic-multimorbidity-and-mortality-a-cohort-study
#8
Archana Singh-Manoux, Aurore Fayosse, Séverine Sabia, Adam Tabak, Martin Shipley, Aline Dugravot, Mika Kivimäki
BACKGROUND: Multimorbidity is increasingly common and is associated with adverse health outcomes, highlighting the need to broaden the single-disease framework that dominates medical research. We examined the role of midlife clinical characteristics, socioeconomic position, and behavioural factors in the development of cardiometabolic multimorbidity (at least 2 of diabetes, coronary heart disease, and stroke), along with how these factors modify risk of mortality. METHODS AND FINDINGS: Data on 8,270 men and women were drawn from the Whitehall II cohort study, with mean follow-up of 23...
May 2018: PLoS Medicine
https://www.readbyqxmd.com/read/29780555/reversible-disassembly-of-metallasupramolecular-structures-mediated-by-a-metastable-state-photoacid
#9
Suzanne M Jansze, Giacomo Cecot, Kay Severin
The addition of a metastable-state photoacid to solutions containing metal-ligand assemblies renders the systems light responsive. Upon irradiation, proton transfer from the photoacid to the ligand is observed, resulting in disassembly of the metallasupramolecular structure. In the dark, the process is fully reversed. Light-induced switching was demonstrated for six different metal-ligand assemblies containing PdII , PtII or RuII complexes and bridging polypyridyl ligands. The methodology allows liberating guest molecules with light...
May 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/29778183/high-genetic-diversity-of-extended-spectrum-%C3%AE-lactamases-producing-escherichia-coli-in-feces-of-horses
#10
Syndia Sadikalay, Yann Reynaud, Stéphanie Guyomard-Rabenirina, Mélanie Falord, Célia Ducat, Laetitia Fabre, Simon Le Hello, Antoine Talarmin, Séverine Ferdinand
Extended-spectrum beta-lactamases (ESBLs), especially those of the CTX-M type, represent a major public health problem throughout the world. Although the carriage of ESBL-producing Enterobacteriaceae (EPE) in feces of horses is now well recognized, little is known about the diversity of EPE after treatment of horses with antibiotics. We undertook this study to assess and follow the diversity of EP Escherichia coli isolated from horses after antibiotic treatment for an infection. Fecal samples from two horses treated and two that were untreated were tested for the presence of EPE on different days...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29774158/efficacy-of-vedolizumab-for-induction-of-clinical-response-and-remission-in-patients-with-moderate-to-severe-inflammatory-bowel-disease-who-failed-at-least-two-tnf-antagonists
#11
Martine De Vos, Barbara Dhooghe, Severine Vermeire, Edouard Louis, Fazia Mana, Ann Elewaut, Peter Bossuyt, Filip Baert, Catherine Reenaers, Marc Van Gossum, Elisabeth Macken, Marc Ferrante, Pieter Hindryckx, Olivier Dewit, Tom Holvoet, Denis Franchimont
Background: Vedolizumab is a recently available monoclonal antibody targeting α4β7 integrin for the treatment of ulcerative colitis (UC) and Crohn's disease (CD). Objective: The objective of this article is to evaluate the efficacy of vedolizumab induction therapy in anti-TNF-refractory/intolerant UC and CD patients in real life. Methods: A cohort of 149 moderately to severely active UC and CD patients who failed or showed intolerance to at least two TNF antagonists participated in a medical need program and received vedolizumab in 37 Belgian centers (April-September 2015)...
April 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29774129/combined-abiraterone-acetate-plus-prednisone-salvage-prostate-bed-radiotherapy-and-lh-rh-agonists-carlha-gep12-in-biochemically-relapsing-prostate-cancer-patients-following-prostatectomy-a-phase-i-study-of-the-getug-gep
#12
Stéphane Supiot, Loic Campion, Pascal Pommier, Mélanie Dore, Clément Palpacuer, Séverine Racadot, Emmanuel Rio, Gérard A Milano, Céline Mahier-Ait Oukhatar, Christian Carrie
Background: To establish the maximum tolerated dose of abiraterone acetate plus prednisone (AA) combined with salvage radiotherapy (SRT) and goserelin in a phase 1 study in men with rising PSA following radical prostatectomy. Methods: AA was given during one month before SRT at 1000 mg PO once daily, then 750 mg (Dose Level 1, DL1) or 1000 mg (DL2) during 5 months combined with 6-months goserelin by injection on the first day of irradiation (scheme NEO) or one month before starting SRT (scheme CONCO)...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29774035/aldaulactone-an-original-phytotoxic-secondary-metabolite-involved-in-the-aggressiveness-of-alternaria-dauci-on-carrot
#13
Julia Courtial, Latifa Hamama, Jean-Jacques Helesbeux, Mickaël Lecomte, Yann Renaux, Esteban Guichard, Linda Voisine, Claire Yovanopoulos, Bruno Hamon, Laurent Ogé, Pascal Richomme, Mathilde Briard, Tristan Boureau, Séverine Gagné, Pascal Poupard, Romain Berruyer
Qualitative plant resistance mechanisms and pathogen virulence have been extensively studied since the formulation of the gene-for-gene hypothesis. The mechanisms involved in the quantitative traits of aggressiveness and plant partial resistance are less well-known. Nevertheless, they are prevalent in most plant-necrotrophic pathogen interactions, including the Daucus carota - Alternaria dauci interaction. Phytotoxic metabolite production by the pathogen plays a key role in aggressiveness in these interactions...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29766022/influence-of-pre-existing-anti-capsid-neutralizing-and-binding-antibodies-on-aav-vector-transduction
#14
Zachary Fitzpatrick, Christian Leborgne, Elena Barbon, Elisa Masat, Giuseppe Ronzitti, Laetitia van Wittenberghe, Alban Vignaud, Fanny Collaud, Séverine Charles, Marcelo Simon Sola, Fabienne Jouen, Olivier Boyer, Federico Mingozzi
Pre-existing immunity to adeno-associated virus (AAV) is highly prevalent in humans and can profoundly impact transduction efficiency. Despite the relevance to AAV-mediated gene transfer, relatively little is known about the fate of AAV vectors in the presence of neutralizing antibodies (NAbs). Similarly, the effect of binding antibodies (BAbs), with no detectable neutralizing activity, on AAV transduction is ill defined. Here, we delivered AAV8 vectors to mice carrying NAbs and demonstrated that AAV particles are taken up by both liver parenchymal and non-parenchymal cells; viral particles are then rapidly cleared, without resulting in transgene expression...
June 15, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29764366/phylogenetic-signal-from-rearrangements-in-18-anopheles-species-by-joint-scaffolding-extant-and-ancestral-genomes
#15
Yoann Anselmetti, Wandrille Duchemin, Eric Tannier, Cedric Chauve, Sèverine Bérard
BACKGROUND: Genomes rearrangements carry valuable information for phylogenetic inference or the elucidation of molecular mechanisms of adaptation. However, the detection of genome rearrangements is often hampered by current deficiencies in data and methods: Genomes obtained from short sequence reads have generally very fragmented assemblies, and comparing multiple gene orders generally leads to computationally intractable algorithmic questions. RESULTS: We present a computational method, ADSEQ, which, by combining ancestral gene order reconstruction, comparative scaffolding and de novo scaffolding methods, overcomes these two caveats...
May 9, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29763330/synthesis-of-1-2-4-triazolo-4-3-a-piperazin-6-ones-an-approach-to-the-triazole-fused-ketopiperazine-scaffold
#16
Khoubaib Ben Haj Salah, Baptiste Legrand, Mathieu Bibian, Emmanuel Wenger, Jean-Alain Fehrentz, Séverine Denoyelle
A stereoconservative synthesis to access the triazole-fused ketopiperazine (TKP) scaffold is presented. This underexplored platform offers a wide range of structural modulations with several points of diversity and chiral centers. A series of [1,2,4]triazolo[4,3- a]piperazin-6-ones was synthesized from optically pure dipeptides. The methodology was then successfully applied to access the pyrrolo[1,2- a]triazolo[3,4- c]piperazin-6-one tricycle. Importantly, the crystal structures of representative TKPs confirmed that the configuration of the chiral centers was controlled during the synthetic route and facilitated description of the orientation of the substituents depending on their nature and position on the TKP scaffold...
May 15, 2018: Organic Letters
https://www.readbyqxmd.com/read/29762759/measuring-the-impact-of-delayed-cerebral-ischemia-on-neuropsychological-outcome-after-aneurysmal-subarachnoid-hemorrhage-protocol-of-a-swiss-nationwide-observational-study-moca-dci-study
#17
Martin N Stienen, Christian Fung, Philippe Bijlenga, Daniel W Zumofen, Rodolfo Maduri, Thomas Robert, Martin A Seule, Serge Marbacher, Olivia Geisseler, Peter Brugger, Klemens Gutbrod, Christian Chicherio, Andreas U Monsch, Valérie Beaud, Stefania Rossi, Severin Früh, Nicole Schmid, Nicolas R Smoll, Emanuela Keller, Luca Regli
BACKGROUND: The exact relationship between delayed cerebral ischemia (DCI) following aneurysmal subarachnoid hemorrhage (aSAH) and neuropsychological impairment remains unknown, as previous studies lacked a baseline examination after aneurysm occlusion but before the DCI-period. Neuropsychological evaluation of acutely ill patients is often applied in a busy intensive care unit (ICU), where distraction represents a bias to the obtained results. OBJECTIVE: To evaluate the relationship between DCI and neuropsychological outcome after aSAH by comparing the Montreal Cognitive Assessment (MoCA) results in aSAH patients with and without DCI at 3 mo with a baseline examination before the DCI-period (part 1)...
May 11, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29758976/the-6th-international-conference-on-biomedical-engineering-and-biotechnology
#18
Carlos Gómez, Severin P Schwarzacher, Huiyu Zhou
No abstract text is available yet for this article.
April 27, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29757651/one-pot-synthesis-of-trisubstituted-triazenes-from-grignard-reagents-and-organic-azides
#19
Abdusalom A Suleymanov, Rosario Scopelliti, Farzaneh Fadaei Tirani, Kay Severin
A simple and versatile method for the preparation of linear, trisubstituted triazenes is reported. The procedure is based on the reaction of Grignard reagents with 1-azido-4-iodobutane or 4-azidobutyl-4-methylbenzenesulfonate. These organic azides enable the regioselective formation of triazenes via an intramolecular cyclization step. The new method can be used for the preparation of aryl, heteroaryl, vinyl, and alkyl triazenes. The synthetic utility of vinyl triazenes is demonstrated by acid-induced C-N, C-O, C-F, C-P, and C-S bond-forming reactions...
May 14, 2018: Organic Letters
https://www.readbyqxmd.com/read/29757605/structural-basis-for-natural-product-selection-and-export-by-bacterial-abc-transporters
#20
Maria Romano, Giuliana Fusco, Hassanul G Choudhury, Shahid Mehmood, Carol V Robinson, Séverine Zirah, Julian D Hegemann, Ewen Lescop, Mohamed A Marahiel, Sylvie Rebuffat, Alfonso De Simone, Konstantinos Beis
Bacteria under stress produce ribosomally synthesized and posttranslationally modified peptides (RiPPs) to target closely related species, such as the lasso peptide microcin J25 (MccJ25). These peptides are also toxic to the producing organisms that utilize dedicated ABC transporters to achieve self-immunity. MccJ25 is exported by the Escherichia coli ABC transporter McjD through a complex mechanism of recognition that has remained elusive. Here, we used biomolecular NMR to study this interaction and identified a region of the toxic peptide that is crucial to its recognition by the ABC transporter...
May 14, 2018: ACS Chemical Biology
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