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https://www.readbyqxmd.com/read/28107998/multiplex-and-accurate-quantification-of-acute-kidney-injury-biomarker-candidates-in-urine-using-protein-standard-absolute-quantification-psaq-and-targeted-proteomics
#1
Benoît Gilquin, Mathilde Louwagie, Michel Jaquinod, Alexandre Cez, Guillaume Picard, Leila El Kholy, Brigitte Surin, Jérôme Garin, Myriam Ferro, Thomas Kofman, Caroline Barau, Emmanuelle Plaisier, Pierre Ronco, Virginie Brun
There is a need for multiplex, specific and quantitative methods to speed-up the development of acute kidney injury biomarkers and allow a more specific diagnosis. Targeted proteomic analysis combined with stable isotope dilution has recently emerged as a powerful option for the parallelized evaluation of candidate biomarkers. This article presents the development of a targeted proteomic assay to quantify 4 acute kidney injury biomarker candidates in urine samples. The proteins included in the assessed panel consisted of myo-inositol oxygenase (MIOX), phosphoenolpyruvate carboxykinase 1 (PCK1), neutrophil gelatinase-associated lipocalin (NGAL) and liver fatty acid-binding protein (L-FABP)...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28104640/arterial-spin-labeling-to-discriminate-pediatric-cervicofacial-soft-tissue-vascular-anomalies
#2
G Boulouis, V Dangouloff-Ros, O Boccara, N Garabedian, V Soupre, A Picard, V Couloigner, N Boddaert, O Naggara, F Brunelle
BACKGROUND AND PURPOSE: Differentiating major subtypes of cervicofacial vascular lesions is crucial for appropriate management. The aim of our study was to evaluate the performance of an MR imaging arterial spin-labeling perfusion sequence in discriminating pediatric cervicofacial soft-tissue vascular anomalies. MATERIALS AND METHODS: We conducted a retrospective analysis of data from a prospectively maintained registry including pediatric patients at a tertiary pediatric center between January 2012 and January 2014...
January 19, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28104245/assessing-kinematics-and-kinetics-of-functional-electrical-stimulation-rowing
#3
Adina E Draghici, Glen Picard, J Andrew Taylor, Sandra J Shefelbine
Hybrid functional electrical stimulation (FES) rowing has positive effects on cardiovascular fitness, producing significantly greater aerobic power than either upper body or FES exercise alone. However, there is minimal information on the kinematics, kinetics, and mechanical efficiency of FES-rowing in the spinal cord injured (SCI) population. This study examined the biomechanics of FES-rowing to determine how motions, forces, and aerobic demand change with increasing intensity. Six individuals with SCI and six able-bodied subjects performed a progressive aerobic capacity rowing test...
January 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28099335/micronodular-pattern-of-organizing-pneumonia-case-report-and-systematic-literature-review
#4
François Lebargy, Davy Picard, Jean Hagenburg, Olivier Toubas, Jeanne-Marie Perotin, Sebastian Sandu, Gaëtan Deslee, Sandra Dury
RATIONALE: Organizing pneumonia (OP) is a clinicopathological entity characterized by granulation tissue plugs in the lumen of small airways, alveolar ducts, and alveoli. OP can be cryptogenic (primary) (COP) or secondary to various lung injuries. PATIENT CONCERNS: We report the case of a 38-year-old male smoker with COP presenting in the form of diffuse micronodules on computed tomography (CT) scan and describe the clinical, radiological, and functional characteristics of micronodular pattern of organizing pneumonia (MNOP) based on a review of the literature including 14 cases...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28071751/transcriptional-pausing-at-the-translation-start-site-operates-as-a-critical-checkpoint-for-riboswitch-regulation
#5
Adrien Chauvier, Frédéric Picard-Jean, Jean-Christophe Berger-Dancause, Laurène Bastet, Mohammad Reza Naghdi, Audrey Dubé, Pierre Turcotte, Jonathan Perreault, Daniel A Lafontaine
On the basis of nascent transcript sequencing, it has been postulated but never demonstrated that transcriptional pausing at translation start sites is important for gene regulation. Here we show that the Escherichia coli thiamin pyrophosphate (TPP) thiC riboswitch contains a regulatory pause site in the translation initiation region that acts as a checkpoint for thiC expression. By biochemically probing nascent transcription complexes halted at defined positions, we find a narrow transcriptional window for metabolite binding, in which the downstream boundary is delimited by the checkpoint...
January 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28069966/inherited-human-irak-1-deficiency-selectively-impairs-tlr-signaling-in-fibroblasts
#6
Erika Della Mina, Alessandro Borghesi, Hao Zhou, Salim Bougarn, Sabri Boughorbel, Laura Israel, Ilaria Meloni, Maya Chrabieh, Yun Ling, Yuval Itan, Alessandra Renieri, Iolanda Mazzucchelli, Sabrina Basso, Piero Pavone, Raffaele Falsaperla, Roberto Ciccone, Rosa Maria Cerbo, Mauro Stronati, Capucine Picard, Orsetta Zuffardi, Laurent Abel, Damien Chaussabel, Nico Marr, Xiaoxia Li, Jean-Laurent Casanova, Anne Puel
Most members of the Toll-like receptor (TLR) and interleukin-1 receptor (IL-1R) families transduce signals via a canonical pathway involving the MyD88 adapter and the interleukin-1 receptor-associated kinase (IRAK) complex. This complex contains four molecules, including at least two (IRAK-1 and IRAK-4) active kinases. In mice and humans, deficiencies of IRAK-4 or MyD88 abolish most TLR (except for TLR3 and some TLR4) and IL-1R signaling in both leukocytes and fibroblasts. TLR and IL-1R responses are weak but not abolished in mice lacking IRAK-1, whereas the role of IRAK-1 in humans remains unclear...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28068773/truncated-conjugate-gradient-an-optimal-strategy-for-the-analytical-evaluation-of-the-many-body-polarization-energy-and-forces-in-molecular-simulations
#7
Félix Aviat, Antoine Levitt, Benjamin Stamm, Yvon Maday, Pengyu Ren, Jay W Ponder, Louis Lagardère, Jean-Philip Piquemal
We introduce a new class of methods, denoted as Truncated Conjugate Gradient(TCG), to solve the many-body polarization energy and its associated forces in molecular simulations (i.e. molecular dynamics (MD) and Monte Carlo). The method consists in a fixed number of Conjugate Gradient (CG) iterations. TCG approaches provide a scalable solution to the polarization problem at a user-chosen cost and a corresponding optimal accuracy. The optimality of the CG-method guarantees that the number of the required matrix-vector products are reduced to a minimum compared to other iterative methods...
January 10, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28068672/genomic-hallmarks-of-localized-non-indolent-prostate-cancer
#8
Michael Fraser, Veronica Y Sabelnykova, Takafumi N Yamaguchi, Lawrence E Heisler, Julie Livingstone, Vincent Huang, Yu-Jia Shiah, Fouad Yousif, Xihui Lin, Andre P Masella, Natalie S Fox, Michael Xie, Stephenie D Prokopec, Alejandro Berlin, Emilie Lalonde, Musaddeque Ahmed, Dominique Trudel, Xuemei Luo, Timothy A Beck, Alice Meng, Junyan Zhang, Alister D'Costa, Robert E Denroche, Haiying Kong, Shadrielle Melijah G Espiritu, Melvin L K Chua, Ada Wong, Taryne Chong, Michelle Sam, Jeremy Johns, Lee Timms, Nicholas B Buchner, Michèle Orain, Valérie Picard, Helène Hovington, Alexander Murison, Ken Kron, Nicholas J Harding, Christine P'ng, Kathleen E Houlahan, Kenneth C Chu, Bryan Lo, Francis Nguyen, Constance H Li, Ren X Sun, Richard de Borja, Christopher I Cooper, Julia F Hopkins, Shaylan K Govind, Clement Fung, Daryl Waggott, Jeffrey Green, Syed Haider, Michelle A Chan-Seng-Yue, Esther Jung, Zhiyuan Wang, Alain Bergeron, Alan Dal Pra, Louis Lacombe, Colin C Collins, Cenk Sahinalp, Mathieu Lupien, Neil E Fleshner, Housheng H He, Yves Fradet, Bernard Tetu, Theodorus van der Kwast, John D McPherson, Robert G Bristow, Paul C Boutros
Prostate tumours are highly variable in their response to therapies, but clinically available prognostic factors can explain only a fraction of this heterogeneity. Here we analysed 200 whole-genome sequences and 277 additional whole-exome sequences from localized, non-indolent prostate tumours with similar clinical risk profiles, and carried out RNA and methylation analyses in a subset. These tumours had a paucity of clinically actionable single nucleotide variants, unlike those seen in metastatic disease. Rather, a significant proportion of tumours harboured recurrent non-coding aberrations, large-scale genomic rearrangements, and alterations in which an inversion repressed transcription within its boundaries...
January 19, 2017: Nature
https://www.readbyqxmd.com/read/28049773/crosstalk-between-alternatively-spliced-ugt1a-isoforms-and-colon-cancer-cell-metabolism
#9
Yannick Audet-Delage, Michele Rouleau, Melanie Rouleau, Joannie Roberge, Stephanie Miard, Frederic Picard, Bernard Tetu, Chantal Guillemette
Alternative splicing at the human glucuronosyltransferase 1 gene locus (UGT1) produces alternate isoforms UGT1A_i2s that control glucuronidation activity through protein-protein interactions. Here, we hypothesized that UGT1A_i2s function into a complex protein network connecting other metabolic pathways with influence on cancer cell metabolism. This is based on a pathway enrichment analysis of proteomic data that identified several high-confidence candidate interaction proteins of UGT1A_i2 proteins in human tissues, namely the rate-limiting enzyme of glycolysis pyruvate kinase (PKM), which plays a critical role in cancer cell metabolism and tumor growth...
January 3, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28035750/bleeding-risk-of-terminally-ill-patients-hospitalized-in-palliative-care-units-the-rheso-study
#10
Bernard Tardy, Stéphane Picard, Frédéric Guirimand, Céline Chapelle, Marie Delerue Danel, Thomas Celarier, Jean-François Ciais, Pascale Vassal, Sébastien Salas, Marilène Filbet, Jean-Marie Gomas, Aline Guillot, Jean-Baptiste Gaultier, Adel Merah, Anne Richard, Silvy Laporte, Laurent Bertoletti
BACKGROUND: The value of primary thromboprophylaxis in patients admitted to palliative care units is debated. Moreover, the bleeding risk of these patients is unknown. OBJECTIVES: Our primary aim was to assess the bleeding risk of patients in a real-world practice setting of hospital palliative care. Our secondary aim was to determine the incidence of symptomatic deep-vein thrombosis and to identify risk factors for bleeding. PATIENTS/METHODS: In this prospective, observational study in 22 French palliative care units, 1199 patients (median age: 71 years, male: 45...
December 30, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28034549/basophil-activation-test-is-a-relevant-biomarker-of-the-outcome-of-rapid-desensitization-in-platinum-compounds-allergy
#11
Pedro Giavina-Bianchi, Violeta Régnier Galvão, Matthieu Picard, Joana Caiado, Mariana C Castells
BACKGROUND: Rapid drug desensitization (RDD) has become a cornerstone in the management of immediate drug hypersensitivity reactions (DHRs) to chemotherapeutic agents. Because of the inherent risk of anaphylaxis during RDD, biomarkers to predict patients at risk of developing such severe reactions are needed. The basophil activation test (BAT) has been used in DHRs as a diagnostic tool. OBJECTIVE: We evaluated basophil CD63 and CD203c expression (BAT) as a biomarker to assess the safety and effectiveness of RDD in platinum compounds-allergic patients...
December 26, 2016: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28029352/-mitral-valve-repair-with-the-mitraclip-following-surgical-mitral-annuloplasty-failure
#12
F Picard, V-X Tadros, X Millán, A W Asgar
Mitral repair using the MitraClip device is on ongoing expansion and has been evaluated in different patterns of mitral regurgitation. Nevertheless, surgical approaches to mitral regurgitation remain the standard of care, at least in absence of contraindication. We report the first Canadian experience of mitral valve repair with the MitraClip following surgical mitral annuloplasty failure. Therapeutic considerations and potential challenges are discussed.
October 28, 2016: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28029333/biochemical-and-organoleptic-characteristics-of-muscle-from-early-and-late-maturing-bulls-in-different-production-systems
#13
G B Mezgebo, F J Monahan, M McGee, E G O'Riordan, B Picard, R I Richardson, A P Moloney
In grass-based beef production systems (PS), early maturing (EM) breed types may be preferable to late maturing (LM) breed types in achieving adequate carcass fat cover. Biochemical and organoleptic characteristics of muscle from suckler bulls were investigated in EM and LM (n=28/breed) assigned to one of two PS (ad libitum concentrates and grass silage to slaughter (C) or ad libitum silage plus 2 kg concentrate daily during winter followed by 99 days at pasture and then an indoor finishing period on C (GSPC)) in a 2 breed type×2 PS factorial arrangement of treatments...
December 28, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28029088/two-levels-of-specialization-in-bacteraemic-escherichia-coli-strains-revealed-by-their-comparison-with-commensal-strains
#14
O Clermont, C Couffignal, J Blanco, F Mentré, B Picard, E Denamur
Bacteraemia caused by Escherichia coli are particularly frequent and severe, contrasting with the commensal character of the strains found in the digestive tract. A better understanding of the relationships between strains of both origins is needed to unravel the pathogenesis of this disease. Two hundred and forty-three commensal strains were compared to 243 bacteraemic strains isolated from adult hosts matched in terms of gender and age, and from similar location and epoch. Phylogenetic grouping, O-type determination, virulence factor content and antibiotic resistance were compared...
December 28, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/28011863/inherited-cd70-deficiency-in-humans-reveals-a-critical-role-for-the-cd70-cd27-pathway-in-immunity-to-epstein-barr-virus-infection
#15
Kazushi Izawa, Emmanuel Martin, Claire Soudais, Julie Bruneau, David Boutboul, Rémy Rodriguez, Christelle Lenoir, Andrew D Hislop, Caroline Besson, Fabien Touzot, Capucine Picard, Isabelle Callebaut, Jean-Pierre de Villartay, Despina Moshous, Alain Fischer, Sylvain Latour
Epstein-Barr virus (EBV) infection in humans is a major trigger of malignant and nonmalignant B cell proliferations. CD27 is a co-stimulatory molecule of T cells, and inherited CD27 deficiency is characterized by high susceptibility to EBV infection, though the underlying pathological mechanisms have not yet been identified. In this study, we report a patient suffering from recurrent EBV-induced B cell proliferations including Hodgkin's lymphoma because of a deficiency in CD70, the ligand of CD27. We show that EBV-specific T lymphocytes did not expand properly when stimulated with CD70-deficient EBV-infected B cells, whereas expression of CD70 in B cells restored expansion, indicating that CD70 on B cells but not on T cells is required for efficient proliferation of T cells...
January 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28002877/the-drugs-that-mostly-frequently-induce-acute-kidney-injury-a-case%C3%A2-%C3%A2-non-case-study-of-a-pharmacovigilance-database
#16
Marion Pierson-Marchandise, Valérie Gras, Julien Moragny, Joelle Micallef, Louise Gaboriau, Sylvie Picard, Gabriel Choukroun, Kamel Masmoudi, Sophie Liabeuf
AIMS: Acute kidney injury (AKI) is associated with a high hospitalization rate, accelerated long-term decline in kidney function and a high mortality rate. Adverse drug reactions (ADRs) constitute one of the most important modifiable factors in the context of AKI. Most studies of drug-induced AKI have focused on a sole drug class. The objective of the present study was to establish a comprehensive overview of drug-induced AKI on the basis of spontaneously reported ADRs in the French national pharmacovigilance database (FPVD)...
December 21, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27995619/idiopathic-linear-iga-bullous-dermatosis-prognostic-factors-based-on-a-case-series-of-72-adults
#17
J Gottlieb, S Ingen-Housz-Oro, M Alexandre, S Grootenboer-Mignot, F Aucouturier, E Sbidian, E Tancrede, P Schneider, E Regnier, C Picard-Dahan, E Begon, C Pauwels, K Cury, S Hüe, C Bernardeschi, N Ortonne, F Caux, P Wolkenstein, O Chosidow, C Prost-Squarcioni
BACKGROUND: Linear IgA bullous dermatosis (LABD) is a clinically and immunologically heterogeneous, subepidermal, autoimmune blistering disease (AIBD), whose long-term evolution is poorly described. OBJECTIVES: To investigate the clinical and immunological characteristics, follow-up and prognostic factors of adult idiopathic LABD. METHODS: This retrospective study, conducted in our AIBD Referral Center, included adults, diagnosed between 1995 and 2012, with idiopathic LABD, defined as pure or predominant IgA deposits by direct immunofluorescence...
December 20, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27995518/erratum-to-effects-of-neighborhood-walkability-on-physical-activity-and-sedentary-behavior-long-term-post-bariatric-surgery
#18
Ryan E R Reid, Tamara E Carver, Tyler G R Reid, Marie-Aude Picard-Turcot, Kathleen M Andersen, Nicolas V Christou, Ross E Andersen
No abstract text is available yet for this article.
December 19, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27986514/parenting-stress-and-salivary-cortisol-in-parents-of-children-with-autism-spectrum-disorder-longitudinal-variations-in-the-context-of-a-service-dog-s-presence-in-the-family
#19
Stéphanie-M Fecteau, Louise Boivin, Marcel Trudel, Blythe A Corbett, Frank E Harrell, Robert Viau, Noël Champagne, Frédéric Picard
A significant portion of parents of children with autism spectrum disorder report high levels of stress related to parenting responsibilities, which have been linked to abnormal cortisol patterns. This study seeks to better understand the parents' adaptation to caregiving demands and use of a service dog, by taking into account longitudinal variations in salivary cortisol and perception of parental stress. Salivary cortisol was collected one day per week for 15 weeks by 98 primary caregivers of children with ASD...
December 13, 2016: Biological Psychology
https://www.readbyqxmd.com/read/27973587/how-elephant-seals-mirounga-leonina-adjust-their-fine-scale-horizontal-movement-and-diving-behaviour-in-relation-to-prey-encounter-rate
#20
Yves Le Bras, Joffrey Jouma'a, Baptiste Picard, Christophe Guinet
Understanding the diving behaviour of diving predators in relation to concomitant prey distribution could have major practical applications in conservation biology by allowing the assessment of how changes in fine scale prey distribution impact foraging efficiency and ultimately population dynamics. The southern elephant seal (Mirounga leonina, hereafter SES), the largest phocid, is a major predator of the southern ocean feeding on myctophids and cephalopods. Because of its large size it can carry bio-loggers with minimal disturbance...
2016: PloS One
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