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https://www.readbyqxmd.com/read/28434111/idh-mutation-and-1p19q-codeletion-distinguish-two-radiological-patterns-of-diffuse-low-grade-gliomas
#1
Amélie Darlix, Jérémy Deverdun, Nicolas Menjot de Champfleur, Florence Castan, Sonia Zouaoui, Valérie Rigau, Michel Fabbro, Yordanka Yordanova, Emmanuelle Le Bars, Luc Bauchet, Catherine Gozé, Hugues Duffau
Diffuse low-grade gliomas (DLGG) prognosis is variable, depending on several factors, including the isocitrate dehydrogenase (IDH) mutation and the 1p19q codeletion. A few studies suggested associations between these parameters and tumor radiological characteristics including topography. Our aim was analyzing the correlations between the IDH and 1p19q statuses and the tumor intracerebral distribution (at the lobar and voxel levels), volume, and borders. We conducted a retrospective, monocentric study on a consecutive series of 198 DLGG patients...
April 22, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28432097/diazotrophy-overcomes-the-deleterious-growth-phenotype-of-glne-deletion-in-azotobacter-vinelandii
#2
Florence Mus, Alex Tseng, Ray Dixon, John W Peters
Overcoming the inhibitory effects of excess environmental ammonium on nitrogenase synthesis or activity, or preventing ammonium assimilation, have both been considered as strategies to increase the amount of fixed nitrogen transferred from bacterial to plant partners in associative or symbiotic plant-diazotroph relationships. The GlnE adenylyltransferase/adenylyl-removing enzyme catalyzes reversible adenylylation of glutamine synthetase (GS), thereby affecting the post translational regulation of ammonium assimilation critical for appropriate coordination of carbon and nitrogen assimilation...
April 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28432093/diversity-of-integrative-and-conjugative-elements-of-streptococcus-salivarius-and-their-intra-and-interspecies-transfer
#3
Narimane Dahmane, Virginie Libante, Florence Charron-Bourgoin, Eric Guédon, Gérard Guédon, Nathalie Leblond-Bourget, Sophie Payot
Integrative and Conjugative Elements (ICEs) are widespread chromosomal mobile genetic elements, which can transfer autonomously by conjugation in bacteria. Thirteen ICEs with a conjugation module closely related to that of ICESt3 of Streptococcus thermophilus were characterized in Streptococcus salivarius by whole genome sequencing. Sequence comparison highlighted ICE evolution by shuffling of 3 different integration/excision modules (for integration in the 3' end of fda, rpsI or rpmG genes) with the conjugation module of the ICESt3 subfamily...
April 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28432023/pulmonary-embolism-related-sudden-cardiac-arrest-admitted-alive-at-hospital-management-and-outcomes
#4
Wulfran Bougouin, Eloi Marijon, Benjamin Planquette, Nicole Karam, Florence Dumas, David S Celermajer, Daniel Jost, Lionel Lamhaut, Frankie Beganton, Alain Cariou, Guy Meyer, Xavier Jouven
AIM: Pulmonary Embolism (PE) is a relatively common cardiovascular condition, occasionally and tragically manifesting as Sudden Cardiac Arrest (SCA). The natural history of SCA complicating PE has been poorly evaluated.In this study, we described the management and outcome of PE-related SCA. METHODS: In this prospective population-based study, we included all patients admitted at hospital alive after out-of- hospital SCA, in Paris and suburbs, France (6.6 million inhabits), from May 2011 to September 2015...
April 18, 2017: Resuscitation
https://www.readbyqxmd.com/read/28431966/spray-drying-as-a-reliable-route-to-produce-metastable-carbamazepine-form-iv
#5
Rebecca A Halliwell, Rajni M Bhardwaj, Cameron Brown, Naomi E B Briggs, Jaclyn Dunn, John Robertson, Alison Nordon, Alastair J Florence
Carbamazepine is an active pharmaceutical ingredient used in the treatment of epilepsy that can form at least five polymorphic forms. Metastable form IV was originally discovered from crystallisation with polymer additives however has not been observed from subsequent solvent only crystallisation efforts. This work reports the reproducible formation of phase pure crystalline form IV by spray drying of methanolic carbamazepine solution. Characterisation of the material was carried out using diffraction, SEM and DSC...
April 18, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28431579/protocole-of-a-controlled-before-after-evaluation-of-a-national-health-information-technology-based-program-to-improve-healthcare-coordination-and-access-to-information
#6
Florence Saillour-Glénisson, Sylvie Duhamel, Emmanuelle Fourneyron, Laetitia Huiart, Jean Philippe Joseph, Emmanuel Langlois, Stephane Pincemail, Viviane Ramel, Thomas Renaud, Tamara Roberts, Matthieu Sibé, Frantz Thiessard, Jerome Wittwer, Louis Rachid Salmi
BACKGROUND: Improvement of coordination of all health and social care actors in the patient pathways is an important issue in many countries. Health Information (HI) technology has been considered as a potentially effective answer to this issue. The French Health Ministry first funded the development of five TSN ("Territoire de Soins Numérique"/Digital health territories) projects, aiming at improving healthcare coordination and access to information for healthcare providers, patients and the population, and at improving healthcare professionals work organization...
April 21, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28430399/targeting-conformational-activation-of-cdk2-kinase
#7
Morgan Pellerano, Sergey Tcherniuk, Corine Perals, Thi Nhu Ngoc Van, Elsa Garcin, Florence Mahuteau-Betzer, Marie-Paule Teulade-Fichou, May C Morris
Cyclin-dependent kinases constitute attractive pharmacological targets for cancer therapeutics, yet inhibitors in clinical trials target the ATP-binding pocket of the CDK and therefore suffer from limited selectivity and emergence of resistance. The more recent development of allosteric inhibitors targeting conformational plasticity of protein kinases offers promising perspectives for therapeutics. In particular tampering with T-loop dynamics of CDK2 kinase would provide a selective means of inhibiting this kinase, by preventing its conformational activation...
April 21, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28430290/frequency-and-topography-of-small-cerebrovascular-lesions-in-vascular-and-in-mixed-dementia-a-post-mortem-7-tesla-magnetic-resonance-imaging-study-with-neuropathological-correlates
#8
Jacques De Reuck, Florent Auger, Nicolas Durieux, Vincent Deramecourt, Claude-Alain Maurage, Charlotte Cordonnier, Florence Pasquier, Didier Leys, Regis Bordet
<i><b>Introduction</b>: Mixed dementia (MixD) refers to a combination of definite Alzheimer's disease (AD) and vascular encephalopathy. The existence of a "pure" type of vascular dementia (VaD) is controversial. There is a need to find magnetic resonance imaging (MRI) characteristics allowing the distinction between VaD and MixD. The present post-mortem 7.0-tesla MRI compares the frequency or severity and the topography of the small cerebrovascular lesions in brains of patients with VaD and with MixD...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28428131/human-dermal-fibroblast-sub-populations-display-distinct-gene-signatures-related-to-cell-behaviors-and-matrisome
#9
Pauline Nauroy, Vincent Barruche, Laetitia Marchand, Steven Nindorera-Badara, Sylvie Bordes, Brigitte Closs, Florence Ruggiero
No abstract text is available yet for this article.
April 17, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28427063/optical-coherence-tomography-angiography-in-diabetic-maculopathy
#10
Gabriel Coscas, Marco Lupidi, Florence Coscas
Fluorescein angiography (FA) and indocyanine green angiography have provided information about the normal retinal and choroidal anatomy, nearly comparable to histological findings. These tests have been fundamental in the evaluation of all retinal and choroidal vascular diseases and have allowed clinicians to define and diagnose several pathological conditions. FA became the "gold standard" in retinal imaging due to the capacity to visualize the retinal capillary bed and its changes, both in the macular area and in the periphery...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28425123/a-5-year-follow-up-of-a-cohort-of-italian-alcoholics-hospital-admissions-and-overall-survival
#11
Gabriele Bardazzi, Ines Zanna, Marco Ceroti, Benedetta Bendinelli, Adriana Iozzi, Saverio Caini, Gabriella Nesi, Calogero Saieva
BACKGROUND: Alcohol-use disorders (AUDs), including alcohol dependence and alcohol abuse defined according to specific DSM-IV and ICD-X criteria, can be potentially lethal, since they are associated with several medical and psychiatric conditions. This study aims to describe the causes of hospitalization of a large cohort of subjects with alcohol dependence (alcoholics) enrolled in Florence (Italy) over a 5-year follow-up period and to evaluate the effect of hospitalization on overall survival...
April 20, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28424233/cluh-couples-mitochondrial-distribution-to-the-energetic-and-metabolic-status
#12
Jamal Wakim, David Goudenege, Rodolphe Perrot, Naig Gueguen, Valerie Desquiret-Dumas, Juan Manuel Chao de la Barca, Ilaria Dalla Rosa, Florence Manero, Morgane Le Mao, Stephanie Chupin, Arnaud Chevrollier, Vincent Procaccio, Dominique Bonneau, David C Logan, Pascal Reynier, Guy Lenaers, Salim Khiati
Mitochondrial dynamics and distribution are critical in supplying ATP in response to energy demand. CLUH is a protein involved in mitochondrial distribution, whose dysfunction leads to mitochondrial clustering, the metabolic consequences of which remain unknown. To gain insight into the role of CLUH on mitochondrial energy production and cellular metabolism, we have generated CLUH knockout cells using CRISPR/Cas9. Mitochondrial clustering was associated with a smaller cell size, and with decreased abundance of respiratory complexes, resulting in OXPHOS defects...
April 19, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28423976/screening-for-dyslexia-in-french-speaking-university-students-an-evaluation-of-the-detection-accuracy-of-the-alouette-test
#13
Eddy Cavalli, Pascale Colé, Gilles Leloup, Florence Poracchia-George, Liliane Sprenger-Charolles, Abdessadek El Ahmadi
Developmental dyslexia is a lifelong impairment affecting 5% to 10% of the population. In French-speaking countries, although a number of standardized tests for dyslexia in children are available, tools suitable to screen for dyslexia in adults are lacking. In this study, we administered the Alouette reading test to a normative sample of 164 French university students without dyslexia and a validation sample of 83 students with dyslexia. The Alouette reading test is designed to screen for dyslexia in children, since it taps skills that are typically deficient in dyslexia (i...
April 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/28423556/unwanted-acquired-mutations-in-ba-f3-transformation-assays
#14
Jean-Baptiste Demoulin, Guillaume Dachy, Florence A Arts
No abstract text is available yet for this article.
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423008/perirenal-fat-thickness-measured-with-computed-tomography-is-a-reliable-estimate-of-perirenal-fat-mass
#15
Guillaume Favre, Caroline Grangeon-Chapon, Charles Raffaelli, Florence François-Chalmin, Antonio Iannelli, Vincent Esnault
Deposition of perirenal adipose tissue has been associated with adverse renal and cardiovascular events. We compared various methods to measure perirenal adipose tissue using computerized tomography (CT)-scan and performed correlations with anthropometric measures associated with renal and cardiovascular events. Voluntary overweight and obese subjects undergoing a CT-scan for diagnostic purposes were included in the study. Perirenal adipose tissue volume, adipose tissue area of the renal sinus and perirenal fat thickness were manually measured bilaterally...
2017: PloS One
https://www.readbyqxmd.com/read/28421232/clinical-spectrum-quality-of-life-braf-mutation-status-and-treatment-of-skin-involvement-in-adult-langerhans-cell-histiocytosis
#16
Etienne Crickx, Jean-David Bouaziz, Gwenaël Lorillon, Mathilde de Menthon, Florence Cordoliani, Emmanuell Bugnet, Martine Bagot, Michel Rybojad, Samia Mourah, Abdellatif Tazi
Langerhans cell histiocytosis is a rare histiocytic disorder for which skin involvement and management are poorly described in adults. The aim of this retrospective monocentric study in a national reference centre is to describe the clinical characteristics, quality of life, BRAF mutation status and outcomes of skin involvement in adult patients with Langerhans cell histiocytosis. Twenty-five patients (14 females, mean age 47 years) were included, with a median follow-up of 33 months (range 4-420 months). Patients experienced poor dermatological quality of life despite low body surface involvement...
April 19, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28420963/rna-seq-analysis-of-microglia-reveals-time-dependent-activation-of-specific-genetic-programs-following-spinal-cord-injury
#17
Harun N Noristani, Yannick N Gerber, Jean-Charles Sabourin, Marine Le Corre, Nicolas Lonjon, Nadine Mestre-Frances, Hélène E Hirbec, Florence E Perrin
Neurons have inherent competence to regrow following injury, although not spontaneously. Spinal cord injury (SCI) induces a pronounced neuroinflammation driven by resident microglia and infiltrating peripheral macrophages. Microglia are the first reactive glial population after SCI and participate in recruitment of monocyte-derived macrophages to the lesion site. Both positive and negative influence of microglia and macrophages on axonal regeneration had been reported after SCI, raising the issue whether their response depends on time post-lesion or different lesion severity...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28420789/structural-and-stereoelectronic-insights-into-oxygenase-catalyzed-formation-of-ethylene-from-2-oxoglutarate
#18
Zhihong Zhang, Tristan J Smart, Hwanho Choi, Florence Hardy, Christopher T Lohans, Martine I Abboud, Melodie S W Richardson, Robert S Paton, Michael A McDonough, Christopher J Schofield
Ethylene is important in industry and biological signaling. In plants, ethylene is produced by oxidation of 1-aminocyclopropane-1-carboxylic acid, as catalyzed by 1-aminocyclopropane-1-carboxylic acid oxidase. Bacteria catalyze ethylene production, but via the four-electron oxidation of 2-oxoglutarate to give ethylene in an arginine-dependent reaction. Crystallographic and biochemical studies on the Pseudomonas syringae ethylene-forming enzyme reveal a branched mechanism. In one branch, an apparently typical 2-oxoglutarate oxygenase reaction to give succinate, carbon dioxide, and sometimes pyrroline-5-carboxylate occurs...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28420404/development-of-a-spatial-sampling-protocol-using-gis-to-measure-health-disparities-in-bobo-dioulasso-burkina-faso-a-medium-sized-african-city
#19
Daouda Kassié, Anna Roudot, Nadine Dessay, Jean-Luc Piermay, Gérard Salem, Florence Fournet
BACKGROUND: Many cities in developing countries experience an unplanned and rapid growth. Several studies have shown that the irregular urbanization and equipment of cities produce different health risks and uneven exposure to specific diseases. Consequently, health surveys within cities should be carried out at the micro-local scale and sampling methods should try to capture this urban diversity. METHODS: This article describes the methodology used to develop a multi-stage sampling protocol to select a population for a demographic survey that investigates health disparities in the medium-sized city of Bobo-Dioulasso, Burkina Faso...
April 18, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28418659/microbial-cell-factories-for-the-production-of-terpenoid-flavor-and-fragrance-compounds
#20
Florence M Schempp, Laura Drummond, Markus Buchhaupt, Jens Schrader
Terpenoid flavor and fragrance compounds are of high interest to the aroma industry. Microbial production offers an alternative sustainable access to the desired terpenoids independent of natural sources. Genetically engineered microorganisms can be used to synthesize terpenoids from cheap and renewable resources. Due to its modular architecture, terpenoid biosynthesis is especially well suited for the microbial cell factory concept: a platform host engineered for a high flux toward the central C5 prenyl diphosphate precursors enables the production of a broad range of target terpenoids just by varying the pathway modules converting the C5 intermediates to the product of interest...
April 18, 2017: Journal of Agricultural and Food Chemistry
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