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Karima bruno

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https://www.readbyqxmd.com/read/27730650/the-integrative-role-of-cryo-electron-microscopy-in-molecular-and-cellular-structural-biology
#1
Igor Orlov, Alexander G Myasnikov, Leonid Andronov, S Kundhavai Natchiar, Heena Khatter, Brice Beinsteiner, Jean-François Ménétret, Isabelle Hazemann, Kareem Mohideen, Karima Tazibt, Rachel Tabaroni, Hanna Kratzat, Nadia Djabeur, Tatiana Bruxelles, Finaritra Raivoniaina, Lorenza di Pompeo, Morgan Torchy, Isabelle Billas, Alexandre Urzhumtsev, Bruno P Klaholz
After gradually moving away from preparation methods prone to artefacts such as plastic embedding and negative staining for cell sections and single particles, the field of cryo electron microscopy is now heading off at unprecedented speed towards high-resolution analysis of biological objects of various sizes. This "revolution in resolution" is happening largely thanks to new developments of new-generation cameras used for recording the images in the cryo electron microscope which have much increased sensitivity being based on CMOS devices...
October 12, 2016: Biology of the Cell
https://www.readbyqxmd.com/read/27704067/mid-infrared-fibre-evanescent-wave-spectroscopy-of-serum-allows-fingerprinting-of-the-hepatic-metabolic-status-in-mice
#2
Maëna Le Corvec, Coralie Allain, Salim Lardjane, Thibault Cavey, Bruno Turlin, Alain Fautrel, Karima Begriche, Valérie Monbet, Bernard Fromenty, Patricia Leroyer, Pascal Guggenbuhl, Martine Ropert, Olivier Sire, Olivier Loréal
Non-alcoholic fatty liver disease is associated with obesity, diabetes, and metabolic syndrome. The detection of systemic metabolic changes associated with alterations in the liver status during non-alcoholic fatty liver disease could improve patient follow-up. The aim of the present study was to evaluate the potential of mid-infrared fibre evanescent wave spectroscopy as a minimum-invasive method for evaluating the liver status during non-alcoholic fatty liver disease. Seventy-five mice were subjected to a control, high-fat or high-fat-high carbohydrate diets...
September 26, 2016: Analyst
https://www.readbyqxmd.com/read/26849574/gender-as-a-modifying-factor-influencing-myotonic-dystrophy-type-1-phenotype-severity-and-mortality-a-nationwide-multiple-databases-cross-sectional-observational-study
#3
Celine Dogan, Marie De Antonio, Dalil Hamroun, Hugo Varet, Marianne Fabbro, Felix Rougier, Khadija Amarof, Marie-Christine Arne Bes, Anne-Laure Bedat-Millet, Anthony Behin, Remi Bellance, Françoise Bouhour, Celia Boutte, François Boyer, Emmanuelle Campana-Salort, Françoise Chapon, Pascal Cintas, Claude Desnuelle, Romain Deschamps, Valerie Drouin-Garraud, Xavier Ferrer, Helene Gervais-Bernard, Karima Ghorab, Pascal Laforet, Armelle Magot, Laurent Magy, Dominique Menard, Marie-Christine Minot, Aleksandra Nadaj-Pakleza, Sybille Pellieux, Yann Pereon, Marguerite Preudhomme, Jean Pouget, Sabrina Sacconi, Guilhem Sole, Tanya Stojkovich, Vincent Tiffreau, Andoni Urtizberea, Christophe Vial, Fabien Zagnoli, Gilbert Caranhac, Claude Bourlier, Gerard Riviere, Alain Geille, Romain K Gherardi, Bruno Eymard, Jack Puymirat, Sandrine Katsahian, Guillaume Bassez
BACKGROUND: Myotonic Dystrophy type 1 (DM1) is one of the most heterogeneous hereditary disease in terms of age of onset, clinical manifestations, and severity, challenging both medical management and clinical trials. The CTG expansion size is the main factor determining the age of onset although no factor can finely predict phenotype and prognosis. Differences between males and females have not been specifically reported. Our aim is to study gender impact on DM1 phenotype and severity...
2016: PloS One
https://www.readbyqxmd.com/read/26659129/a-recessive-nav1-4-mutation-underlies-congenital-myasthenic-syndrome-with-periodic-paralysis
#4
Karima Habbout, Hugo Poulin, François Rivier, Serena Giuliano, Damien Sternberg, Bertrand Fontaine, Bruno Eymard, Raul Juntas Morales, Bernard Echenne, Louise King, Michael G Hanna, Roope Männikkö, Mohamed Chahine, Sophie Nicole, Said Bendahhou
OBJECTIVE: To determine the molecular basis of a complex phenotype of congenital muscle weakness observed in an isolated but consanguineous patient. METHODS: The proband was evaluated clinically and neurophysiologically over a period of 15 years. Genetic testing of candidate genes was performed. Functional characterization of the candidate mutation was done in mammalian cell background using whole cell patch clamp technique. RESULTS: The proband had fatigable muscle weakness characteristic of congenital myasthenic syndrome with acute and reversible attacks of most severe muscle weakness as observed in periodic paralysis...
January 12, 2016: Neurology
https://www.readbyqxmd.com/read/25609060/detection-characterization-and-inhibition-of-fgfr-tacc-fusions-in-idh-wild-type-glioma
#5
Anna Luisa Di Stefano, Alessandra Fucci, Veronique Frattini, Marianne Labussiere, Karima Mokhtari, Pietro Zoppoli, Yannick Marie, Aurelie Bruno, Blandine Boisselier, Marine Giry, Julien Savatovsky, Mehdi Touat, Hayat Belaid, Aurelie Kamoun, Ahmed Idbaih, Caroline Houillier, Feng R Luo, Jean-Charles Soria, Josep Tabernero, Marica Eoli, Rosina Paterra, Stephen Yip, Kevin Petrecca, Jennifer A Chan, Gaetano Finocchiaro, Anna Lasorella, Marc Sanson, Antonio Iavarone
PURPOSE: Oncogenic fusions consisting of fibroblast growth factor receptor (FGFR) and TACC are present in a subgroup of glioblastoma (GBM) and other human cancers and have been proposed as new therapeutic targets. We analyzed frequency and molecular features of FGFR-TACC fusions and explored the therapeutic efficacy of inhibiting FGFR kinase in GBM and grade II and III glioma. EXPERIMENTAL DESIGN: Overall, 795 gliomas (584 GBM, 85 grades II and III with wild-type and 126 with IDH1/2 mutation) were screened for FGFR-TACC breakpoints and associated molecular profile...
July 15, 2015: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/24970810/mutational-analysis-of-primary-central-nervous-system-lymphoma
#6
Aurélie Bruno, Blandine Boisselier, Karim Labreche, Yannick Marie, Marc Polivka, Anne Jouvet, Clovis Adam, Dominique Figarella-Branger, Catherine Miquel, Sandrine Eimer, Caroline Houillier, Carole Soussain, Karima Mokhtari, Romain Daveau, Khê Hoang-Xuan
Little is known about the genomic basis of primary central nervous system lymphoma (PCNSL) tumorigenesis. To investigate the mutational profile of PCNSL, we analyzed nine paired tumor and germline DNA samples from PCNSL patients by high throughput exome sequencing. Eight genes of interest have been further investigated by focused resequencing in 28 additional PCNSL tumors to better estimate their incidence. Our study identified recurrent somatic mutations in 37 genes, some involved in key signaling pathways such as NFKB, B cell differentiation and cell cycle control...
July 15, 2014: Oncotarget
https://www.readbyqxmd.com/read/24144546/spatial-learning-monoamines-and-oxidative-stress-in-rats-exposed-to-900-mhz-electromagnetic-field-in-combination-with-iron-overload
#7
Karima Maaroufi, Laurence Had-Aissouni, Christophe Melon, Mohsen Sakly, Hafedh Abdelmelek, Bruno Poucet, Etienne Save
The increasing use of mobile phone technology over the last decade raises concerns about the impact of high frequency electromagnetic fields (EMF) on health. More recently, a link between EMF, iron overload in the brain and neurodegenerative disorders including Parkinson's and Alzheimer's diseases has been suggested. Co-exposure to EMF and brain iron overload may have a greater impact on brain tissues and cognitive processes than each treatment by itself. To examine this hypothesis, Long-Evans rats submitted to 900 MHz exposure or combined 900 MHz EMF and iron overload treatments were tested in various spatial learning tasks (navigation task in the Morris water maze, working memory task in the radial-arm maze, and object exploration task involving spatial and non spatial processing)...
January 1, 2014: Behavioural Brain Research
https://www.readbyqxmd.com/read/23473426/effects-of-combined-ferrous-sulphate-administration-and-exposure-to-static-magnetic-field-on-spatial-learning-and-motor-abilities-in-rats
#8
Karima Maaroufi, Mohamed Ammari, Miryam Elferchichi, Bruno Poucet, Mohsen Sakly, Etienne Save, Hafedh Abdelmelek
PRIMARY OBJECTIVE: Occupational exposure to static magnetic fields (SMF) increases, in particular due to the widespread use of Magnetic Resonance Imaging (MRI) for medical diagnosis, thus raising health concerns. This study investigated the behavioural effects of 128 mT SMF in rats and examined the hypothesis that iron supplementation (3 mg kg(-1) for 5 days) potentiate the effects of SMF. METHODS: Spatial learning abilities in the water maze, motor co-ordination in the rotarod and motor skills in the stationary beam and suspending string tests were assessed in iron-treated, SMF-exposed and co-exposed SMF-iron rats...
2013: Brain Injury: [BI]
https://www.readbyqxmd.com/read/23332920/constitutive-activation-of-the-calcium-sensor-stim1-causes-tubular-aggregate-myopathy
#9
Johann Böhm, Frédéric Chevessier, André Maues De Paula, Catherine Koch, Shahram Attarian, Claire Feger, Daniel Hantaï, Pascal Laforêt, Karima Ghorab, Jean-Michel Vallat, Michel Fardeau, Dominique Figarella-Branger, Jean Pouget, Norma B Romero, Marc Koch, Claudine Ebel, Nicolas Levy, Martin Krahn, Bruno Eymard, Marc Bartoli, Jocelyn Laporte
Tubular aggregates are regular arrays of membrane tubules accumulating in muscle with age. They are found as secondary features in several muscle disorders, including alcohol- and drug-induced myopathies, exercise-induced cramps, and inherited myasthenia, but also exist as a pure genetic form characterized by slowly progressive muscle weakness. We identified dominant STIM1 mutations as a genetic cause of tubular-aggregate myopathy (TAM). Stromal interaction molecule 1 (STIM1) is the main Ca(2+) sensor in the endoplasmic reticulum, and all mutations were found in the highly conserved intraluminal Ca(2+)-binding EF hands...
February 7, 2013: American Journal of Human Genetics
https://www.readbyqxmd.com/read/22837180/recurrent-mutations-of-myd88-and-tbl1xr1-in-primary-central-nervous-system-lymphomas
#10
Alberto Gonzalez-Aguilar, Ahmed Idbaih, Blandine Boisselier, Naïma Habbita, Marta Rossetto, Alice Laurenge, Aurélie Bruno, Anne Jouvet, Marc Polivka, Clovis Adam, Dominique Figarella-Branger, Catherine Miquel, Anne Vital, Hervé Ghesquières, Rémy Gressin, Vincent Delwail, Luc Taillandier, Olivier Chinot, Pierre Soubeyran, Emmanuel Gyan, Sylvain Choquet, Caroline Houillier, Carole Soussain, Marie-Laure Tanguy, Yannick Marie, Karima Mokhtari, Khê Hoang-Xuan
PURPOSE: Our objective was to identify the genetic changes involved in primary central nervous system lymphoma (PCNSL) oncogenesis and evaluate their clinical relevance. EXPERIMENTAL DESIGN: We investigated a series of 29 newly diagnosed, HIV-negative, PCNSL patients using high-resolution single-nucleotide polymorphism (SNP) arrays (n = 29) and whole-exome sequencing (n = 4) approaches. Recurrent homozygous deletions and somatic gene mutations found were validated by quantitative real-time PCR and Sanger sequencing, respectively...
October 1, 2012: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/22647274/differences-in-early-acetaminophen-hepatotoxicity-between-obese-ob-ob-and-db-db-mice
#11
Jacinthe Aubert, Karima Begriche, Matthieu Delannoy, Isabelle Morel, Julie Pajaud, Catherine Ribault, Sylvie Lepage, Mitchell R McGill, Catherine Lucas-Clerc, Bruno Turlin, Marie-Anne Robin, Hartmut Jaeschke, Bernard Fromenty
Clinical investigations suggest that hepatotoxicity after acetaminophen (APAP) overdose could be more severe in the context of obesity and nonalcoholic fatty liver disease. The pre-existence of fat accumulation and CYP2E1 induction could be major mechanisms accounting for such hepatic susceptibility. To explore this issue, experiments were performed in obese diabetic ob/ob and db/db mice. Preliminary investigations performed in male and female wild-type, ob/ob, and db/db mice showed a selective increase in hepatic CYP2E1 activity in female db/db mice...
September 2012: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/22441752/serial-computed-tomography-and-lung-function-testing-in-pulmonary-langerhans-cell-histiocytosis
#12
MULTICENTER STUDY
Abdellatif Tazi, Karima Marc, Stéphane Dominique, Cédric de Bazelaire, Bruno Crestani, Thierry Chinet, Dominique Israel-Biet, Jacques Cadranel, Jacques Frija, Gwenael Lorillon, Dominique Valeyre, Sylvie Chevret
Little is known about longitudinal lung function variation in patients with pulmonary Langerhans' cell histiocytosis (LCH). The contribution of serial lung computed tomography (CT) to managing these patients has not been evaluated. This long-term retrospective study included 49 patients who were serially evaluated by lung CT and pulmonary function tests. The lung function variation was categorised as improvement or deterioration. The extent of the CT lesions was correlated with lung function. Lung function deteriorated in ∼60% of the patients...
October 2012: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/21737405/cohort-profile-residential-and-non-residential-environments-individual-activity-spaces-and-cardiovascular-risk-factors-and-diseases-the-record-cohort-study
#13
Basile Chaix, Yan Kestens, Kathy Bean, Cinira Leal, Noëlla Karusisi, Karima Meghiref, Julie Burban, Mélanie Fon Sing, Camille Perchoux, Frédérique Thomas, Juan Merlo, Bruno Pannier
No abstract text is available yet for this article.
October 2012: International Journal of Epidemiology
https://www.readbyqxmd.com/read/19680547/deregulation-of-hepatic-insulin-sensitivity-induced-by-central-lipid-infusion-in-rats-is-mediated-by-nitric-oxide
#14
Nicolas Marsollier, Nadim Kassis, Karima Mezghenna, Maud Soty, Xavier Fioramonti, Amélie Lacombe, Aurélie Joly, Bruno Pillot, Carine Zitoun, José Vilar, Gilles Mithieux, René Gross, Anne-Dominique Lajoix, Vanessa Routh, Christophe Magnan, Céline Cruciani-Guglielmacci
BACKGROUND: Deregulation of hypothalamic fatty acid sensing lead to hepatic insulin-resistance which may partly contribute to further impairment of glucose homeostasis. METHODOLOGY: We investigated here whether hypothalamic nitric oxide (NO) could mediate deleterious peripheral effect of central lipid overload. Thus we infused rats for 24 hours into carotid artery towards brain, either with heparinized triglyceride emulsion (Intralipid, IL) or heparinized saline (control rats)...
August 14, 2009: PloS One
https://www.readbyqxmd.com/read/19394433/effects-of-prolonged-iron-overload-and-low-frequency-electromagnetic-exposure-on-spatial-learning-and-memory-in-the-young-rat
#15
Karima Maaroufi, Laurence Had-Aissouni, Christophe Melon, Mohsen Sakly, Hafedh Abdelmelek, Bruno Poucet, Etienne Save
Low-frequency electromagnetic fields (EMF) have been suggested to affect the brain via alterations of blood-brain barrier permeability to iron. Because of an immature blood-brain barrier, the young brain may be particularly vulnerable to EMF exposure. It is therefore possible that behavioral and neurotoxic effects resulting from EMF-induced iron excess in the brain would be greater in young adults. The objective of the present study was to investigate the interaction between low-frequency EMF and iron overload in young rats...
October 2009: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/18759760/efficacy-of-fractionated-gemtuzumab-ozogamicin-combined-with-cytarabine-in-advanced-childhood-myeloid-leukaemia
#16
MULTICENTER STUDY
Benoit Brethon, Karima Yakouben, Caroline Oudot, Patrick Boutard, Bénédicte Bruno, Cécile Jérome, Brigitte Nelken, Lionel de Lumley, Yves Bertrand, Jean-Hugues Dalle, Sylvie Chevret, Thierry Leblanc, André Baruchel
Gemtuzumab ozogamicin (GO) monotherapy is reported to yield a 20-30% response rate in advanced acute myeloid leukaemia (AML). This study examined the efficacy and tolerability of GO combined with cytarabine (GOCYT) in children with refractory/relapsed CD33(+) AML. Seventeen children received GO 3 mg/m(2) on days 1, 4 and 7 plus cytarabine 100 mg/m(2)/d for 7 d on a compassionate-use basis. Seven patients then received GO-based consolidation. At the outset of GOCYT, two patients were refractory; eight patients were in refractory first relapse; six patients had relapsed after stem cell transplantation (SCT); and one patient [del(5q) therapy-related AML (t-AML)] had not yet been treated...
November 2008: British Journal of Haematology
https://www.readbyqxmd.com/read/12177237/polarized-expression-of-cystic-fibrosis-transmembrane-conductance-regulator-and-associated-epithelial-proteins-during-the-regeneration-of-human-airway-surface-epithelium-in-three-dimensional-culture
#17
Nicolas Castillon, Jocelyne Hinnrasky, Jean-Marie Zahm, Hervé Kaplan, Noël Bonnet, Pascal Corlieu, Jean-Michel Klossek, Karima Taouil, Aurélie Avril-Delplanque, Bruno Péault, Edith Puchelle
We have previously shown that, in normal human airway tissue, localization of the cystic fibrosis transmembrane conductance regulator (CFTR) can be affected by epithelial maturation, polarity, and differentiation and that CFTR trafficking and apical localization depend on the integrity of the airway epithelium. In this study, we addressed the question of whether the three-dimensional (3-D) organization of adult human airway epithelial cells in suspension culture under rotation, leading to spheroid-like structures, could mimic the in vivo phenomenon of differentiation and polarization...
August 2002: Laboratory Investigation; a Journal of Technical Methods and Pathology
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