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Amaris Castanon, Grant Pierre, Rohan Willis, E Nigel Harris, Elizabeth Papalardo, Zurina Romay-Penabad, Alvaro Schleh, Praveen Jajoria, Monica Smikle, Karel DeCeulaer, Anne Tebo, Troy Jaskowski, Marta M Guerra, D Ware Branch, Jane E Salmon, Michelle Petri, Emilio B Gonzalez
Objectives: We evaluate the performance characteristics of antiphosphatidylserine (anti-PS), antiphosphatidylinositol (anti-PI), and antiphospholipid mixture (APhL) enzyme-linked immunosorbent assays (ELISAs) compared with anticardiolipin (aCL) and anti-β2 glycoprotein I (anti-β2GPI) in a large group of patients with antiphospholipid (aPL)-related diseases. Methods: Serum samples from 548 patients from the Hopkins and Jamaican systemic lupus erythematosus cohorts, the PROMISSE cohort, and the Antiphospholipid Standardization Laboratory were examined for immunoglobulin G (IgG)/immunoglobulin M (IgM) positivity in aCL, anti-β2GPI, anti-PS, anti-PI, and APhL ELISA assays...
March 14, 2018: American Journal of Clinical Pathology
Claudia Bello, Jianfei Bai, Bartosz K Zambron, Pilar Elías-Rodríguez, Consuelo Gajate, Inmaculada Robina, Irene Caffa, Michele Cea, Fabrizio Montecucco, Alessio Nencioni, Aimable Nahimana, Dominique Aubry, Caroline Breton, Michel A Duchosal, Faustino Mollinedo, Pierre Vogel
We have synthesized a wide array of structurally related amphiphilic compounds, containing a functionalized pyrrolidine polar group coupled to different ether-linked hydrocarbon chains, to generate novel structures with antitumor activity. These newly synthesized amphiphilic pyrrolidine-derived compounds were classified in three different sub-libraries regarding the number of hydroxyl groups substituting the pyrrolidine moiety at C3 and C4. Pyrrolidine compounds with one or none hydroxyl groups showed a potent cell killing activity against pancreatic cancer cells, but they lacked selectivity for tumor cells...
March 2, 2018: European Journal of Medicinal Chemistry
Alessandra Maria Mont Alverne Pierre, Ana Cristina de Castro Amaral Feldner, Roberto José de Carvalho Filho, Edmundo Pessoa de Almeida Lopes, Michele Soares Gomes Gouvea, João Renato Rebello Pinho, Claudia Teresa Carvente, Christini Takemi Emori, Genimari Arruda da Silva, Maria Lúcia Cardoso Gomes Ferraz
INTRODUCTION: Hepatitis B virus infection is an important cause of liver disease in hemodialysis patients and renal transplant recipients. Hepatitis Delta virus is a defective virus transmitted by the same route of hepatitis B virus, which requires the helper function of hepatitis B virus. Data about hepatitis B virus/hepatitis delta virus coinfection are scarce and there are no studies regarding the coinfection among hemodialysis patients and renal transplant in our country. OBJECTIVE: This study aimed to investigate the prevalence of hepatitis delta virus infection among hemodialysis patients and renal transplant recipients...
March 2018: International Journal of Artificial Organs
Ilhem Bouderbala, Nadjia El Saadi, Alassane Bah, Pierre Auger
In this paper, we develop a 3D-individual-based model (IBM) to understand effect of various small-scale mechanisms in phytoplankton cells, on the cellular aggregation process. These mechanisms are: spatial interactions between cells due to their chemosensory abilities (chemotaxis), a molecular diffusion and a demographical process. The latter is considered as a branching process with a density-dependent death rate to take into account the local competition on resources. We implement the IBM and simulate various scenarios under real parameter values for phytoplankton cells...
March 15, 2018: Acta Biotheoretica
Jean Louis Trouillet, Olivier Collange, Fouad Belafia, François Blot, Gilles Capellier, Eric Cesareo, Jean-Michel Constantin, Alexandre Demoule, Jean-Luc Diehl, Pierre-Grégoire Guinot, Franck Jegoux, Erwan L'Her, Charles-Edouard Luyt, Yazine Mahjoub, Julien Mayaux, Hervé Quintard, François Ravat, Sebastien Vergez, Julien Amour, Max Guillot
Tracheotomy is widely used in intensive care units, albeit with great disparities between medical teams in terms of frequency and modality. Indications and techniques are, however, associated with variable levels of evidence based on inhomogeneous or even contradictory literature. Our aim was to conduct a systematic analysis of the published data in order to provide guidelines. We present herein recommendations for the use of tracheotomy in adult critically ill patients developed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) method...
March 15, 2018: Annals of Intensive Care
Kris Poppe, Candice Autin, Flora Veltri, Pierre Kleynen, Lidia Grabczan, Serge Rozenberg, Lieveke Ameye
Background: Since 2010, three meta-analyses have been published on the impact of thyroid autoimmunity (TAI) on pregnancy outcomes in infertile women treated with assisted reproductive technology (ART). The initially observed high risk of miscarriage became very low in the most recent meta-analysis published in 2016. Objective: To investigate whether the lower risk of miscarriage in the latest meta-analysis was associated with the increased use of intracytoplasmic sperm injection (ICSI) in recent studies...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Christelle Retière, Catherine Willem, Thierry Guillaume, Henri Vié, Laetitia Gautreau-Rolland, Emmanuel Scotet, Xavier Saulquin, Katia Gagne, Marie C Béné, Berthe-Marie Imbert, Beatrice Clemenceau, Pierre Peterlin, Alice Garnier, Patrice Chevallier
We have compared prospectively the outcome and immune reconstitution of patients receiving either post-transplant cyclophosphamide (PTCY) ( n = 30) or anti-thymocyte globulin ATG ( n = 15) as Graft-versus-host disease (GVHD) prophylaxis after reduced-intensity conditioning (RIC) allogeneic peripheral blood stem cell (PBSC) transplantation (allo-SCT). The outcome and immune reconstitution of patients receiving either of these two regimens were compared prospectively. This study allowed also to investigate the impact of PTCY between haplo-identical vs matched donors and of clofarabine as part of the RIC regimen...
February 20, 2018: Oncotarget
Pierre Feugier, Thérèse Aurran, Béatrice Mahé, Remi Letestu, Florence Nguyen-Khac, Bruno Cazin, Olivier Tournilhac, Hervé Maisonneuve, Olivier Casasnovas, Alain Delmer, Véronique Leblond, Bruno Royer, Bernadette Corront, Sylvie Chevret, Roselyne Delépine, Sandrine Vaudaux, Eric Van den Neste, Marie Christine Béné, Florence Cymbalista, Damien Roosweil, Stéphane Leprêtre
March 15, 2018: Haematologica
A C M Veloo, H Jean-Pierre, U S Justesen, T Morris, E Urban, I Wybo, M Kostrzewa, A W Friedrich
Within the ENRIA project, several 'expertise laboratories' collaborated in order to optimize the identification of clinical anaerobic isolates by using a widely available platform, the Biotyper Matrix Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS). Main Spectral Profiles (MSPs) of well characterized anaerobic strains were added to one of the latest updates of the Biotyper database db6903; (V6 database) for common use. MSPs of anaerobic strains nominated for addition to the Biotyper database are included in this validation...
March 12, 2018: Anaerobe
Thomas Radulesco, Pierre-André Jarrot, Raphael Cauchois, Nicolas Macagno, Gilles Kaplanski, Patrick Dessi, Justin Michel
No abstract text is available yet for this article.
March 12, 2018: American Journal of Medicine
Marianne Lorcet, Alain Lortholary, Jean Emmanuel Kurtz, Dominique Berton-Rigaud, Michel Fabbro, Thibault De La Motte Rouge, Marie Christine Kaminsky-Forrett, Anne Floquet, Gilles Freyer, Pierre Combe, Nadine Dohollou, Elsa Kalbacher, Raymond Despax, Remy Largillier, Anne Claire Hardy Bessard, Nicolas Gane, Jalid Sehouli, Guelten Oskay-Oezcelik, Idlir Licaj, Isabelle Ray-Coquard, Florence Joly Lobbedez
BACKGROUND: Expression IV survey evaluated the patients' expectations to a maintenance therapy. METHODS: From January 2015 to March 2016, 401 French patients, in first line or recurrent disease, answered a 24-items anonymous questionnaire. The results were specifically analyzed according to the demographic characteristics and treatment lines. RESULTS: Among the patients, 62% had already been informed about maintenance therapy. Thirty-seven percent of patients received a maintenance treatment: 111 patients during first line and 39 patients in relapse...
March 12, 2018: Bulletin du Cancer
Mathilde Wanneveich, Hélène Jacqmin-Gadda, Jean-François Dartigues, Pierre Joly
No abstract text is available yet for this article.
March 2018: Theoretical Population Biology
Christian A Schaer, Catherine Owczarek, Jeremy W Deuel, Stefan Schauer, Jin Hyen Baek, Ayla Yalamanoglu, Matthew P Hardy, Pierre D Scotney, Peter M Schmidt, Matthias Pelzing, Peter Soupourmas, Paul W Buehler, Dominik J Schaer
BACKGROUND: Preclinical studies have evaluated haptoglobin (Hp) polymers from pooled human plasma as a therapeutic protein to attenuate toxic effects of cell-free hemoglobin (Hb). Proof of concept studies have demonstrated efficacy of Hp in hemolysis associated with transfusion and sickle cell anemia. However, phenotype-specific Hp products might be desirable to exploit phenotype specific activities of Hp 1-1 versus Hp 2-2, offering opportunities for recombinant therapeutics. Prohaptoglobin (proHp) is the primary translation product of the Hp mRNA...
March 15, 2018: BMC Biotechnology
Jackie Perrin, Aurélie Bary, Alexandre Vernay, Pierre Cosson
BACKGROUND: The envelope protein of lentiviruses are type I transmembrane proteins, and their transmembrane domain contains conserved potentially charged residues. This highly unusual feature would be expected to cause endoplasmic reticulum (ER) localization. The aim of this study was to determine by which means the HIV-1 Env protein is transported to the cell surface although its transmembrane domain contains a conserved arginine residue. RESULTS: We expressed various chimeric proteins and analyzed the influence of their transmembrane domain on their intracellular localization...
March 15, 2018: BMC Cell Biology
Kevin P Bishop, Pierre-Nicholas Roy
Free energy calculations are a crucial part of understanding chemical systems but are often computationally expensive for all but the simplest of systems. Various enhanced sampling techniques have been developed to improve the efficiency of these calculations in numerical simulations. However, the majority of these approaches have been applied using classical molecular dynamics. There are many situations where nuclear quantum effects impact the system of interest and a classical description fails to capture these details...
March 14, 2018: Journal of Chemical Physics
Lucie Angel, Badiâa Bouazzaoui, Michel Isingrini, Séverine Fay, Laurence Taconnat, Sandrine Vanneste, Moïse Ledoux, Valérie Gissot, Caroline Hommet, Fréderic Andersson, Laurent Barantin, Jean-Philippe Cottier, Jérémy Pasco, Thomas Desmidt, Frédéric Patat, Vincent Camus, Jean-Pierre Remenieras
Aging is characterized by a cognitive decline of fluid abilities and is also associated with electrophysiological changes. The vascular hypothesis proposes that brain is sensitive to vascular dysfunction which may accelerate age-related brain modifications and thus explain age-related neurocognitive decline. To test this hypothesis, cognitive performance was measured in 39 healthy participants from 20 to 80 years, using tests assessing inhibition, fluid intelligence, attention and crystallized abilities. Brain functioning associated with attentional abilities was assessed by measuring the P3b ERP component elicited through an auditory oddball paradigm...
March 12, 2018: Brain and Cognition
Nika Abdollahi, Alexandre Albani, Eric Anthony, Agnes Baud, Mélissa Cardon, Robert Clerc, Dariusz Czernecki, Romain Conte, Laurent David, Agathe Delaune, Samia Djerroud, Pauline Fourgoux, Nadège Guiglielmoni, Jeanne Laurentie, Nathalie Lehmann, Camille Lochard, Rémi Montagne, Vasiliki Myrodia, Vaitea Opuu, Elise Parey, Lélia Polit, Sylvain Privé, Chloé Quignot, Maria Ruiz-Cuevas, Mariam Sissoko, Nicolas Sompairac, Audrey Vallerix, Violaine Verrecchia, Marc Delarue, Raphael Guérois, Yann Ponty, Sophie Sacquin-Mora, Alessandra Carbone, Christine Froidevaux, Stéphane Le Crom, Olivier Lespinet, Martin Weigt, Samer Abboud, Juliana Bernardes, Guillaume Bouvier, Chloé Dequeker, Arnaud Ferré, Patrick Fuchs, Gaëlle Lelandais, Pierre Poulain, Hugues Richard, Hugo Schweke, Elodie Laine, Anne Lopes
We present a new educational initiative called Meet-U that aims to train students for collaborative work in computational biology and to bridge the gap between education and research. Meet-U mimics the setup of collaborative research projects and takes advantage of the most popular tools for collaborative work and of cloud computing. Students are grouped in teams of 4-5 people and have to realize a project from A to Z that answers a challenging question in biology. Meet-U promotes "coopetition," as the students collaborate within and across the teams and are also in competition with each other to develop the best final product...
March 2018: PLoS Computational Biology
Anne Munck, Rym Boulkedid, Laurence Weiss, Pierre Foucaud, Nathalie Wizla-Derambure, Philippe Reix, François Bremont, Jocelyne Derelle, Julien Schroedt, Corinne Alberti
OBJECTIVE: To evaluate nutritional status and associated factors in a cystic fibrosis (CF) cohort diagnosed by newborn screening and followed up to month 24. METHODS: A prospective longitudinal multicenter study assessing nutritional status according to pancreatic status, feeding modalities, prescriptions, pulmonary outcome and biological nutritional parameters. RESULTS: One-hundred-and-five infants were recruited and 99 completed the study...
March 14, 2018: Journal of Pediatric Gastroenterology and Nutrition
Gabriel Carvajal, Denis Dupoiron, Valerie Seegers, Nathalie Lebrec, François Boré, Pierre-Yves Dubois, Damien Leblanc, Thierry Delorme, Sabrina Jubier-Hamon
BACKGROUND: Pancreatic cancer is the fourth leading cause of cancer-related death in Europe and the United States. Studies have demonstrated that patients with pancreatic cancer have a high prevalence of pain, with rates varying from 47% to 82%. Analgesia using intrathecal drug delivery systems (IDDS) has been poorly studied specifically in this population. METHODS: The IDDS for pancreatic cancer pain was a follow-up observational study designed to evaluate 11-year results of IDDS for refractory pancreatic cancer pain at the Institut de Cancérologie de L'Ouest, Paul Papin in France...
March 14, 2018: Anesthesia and Analgesia
Peter Kranke, Sergio D Bergese, Harold S Minkowitz, Timothy I Melson, David G Leiman, Keith A Candiotti, Ngai Liu, Leopold Eberhart, Ashraf S Habib, Jan Wallenborn, Anthony L Kovac, Pierre Diemunsch, Gabriel Fox, Tong J Gan
BACKGROUND: Postoperative nausea and vomiting causes distress for patients and can prolong care requirements. Consensus guidelines recommend use of multiple antiemetics from different mechanistic classes as prophylaxis in patients at high risk of postoperative nausea and vomiting. The prophylactic efficacy of the dopamine D2/D3 antagonist amisulpride in combination with other antiemetics was investigated. METHODS: This double-blind, randomized, placebo-controlled, international, multicenter trial was conducted in 1,147 adult surgical patients having three or four postoperative nausea and vomiting risk factors...
March 15, 2018: Anesthesiology
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