50 results on '"C. Benet"'
Search Results
2. PCR à réponse rapide détectant des mutations associées à une résistance à l'isoniazide et aux fluoroquinolones: quelle place dans la prise en charge du patient tuberculeux ?
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N. Ben Dhia, C. Guillet-Caruba, C. Benet, D. Vignes, N. Bourgeois-Nicolaos, S. Abgrall, S. Jauréguiberry, and F. Doucet-Populaire
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- 2023
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3. THE ROLE OF FDG‐PET/CT AND BONE MARROW BIOPSY IN DETECTING BONE MARROW INVOLVEMENT IN THE INITIAL STAGING OF FOLLICULAR LYMPHOMA: AN ANALYSIS OF ACCURACY AND PROGNOSTIC IMPACT
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Luis Ríos Frutos, L. Reguilón Gallego, J. López Jiménez, J. Uña, J. Marquet, J. Mucientes, M. J. Terol, P. Sopena Novales, E. Pérez Ceballos, M. Suarez, J. J. Sánchez Blanco, Ana-Isabel Teruel, Jorge Navarro, A. Martínez, R. Andreu, T. Martín Santos, A. Jeréz Cayuela, A Martin, C. Benet, J Contreras, A. Balaguer Rosello, T. Chen Liang, Miguel Angel Cortés Cortés, Antonio Salar, Concepción Ruiz, M. C. Fernández González, J. Tomás Navarro, C. Celades, Francisco José Ortuño, Pilar Tamayo, and Mónica Baile
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Cancer Research ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Follicular lymphoma ,Hematology ,General Medicine ,medicine.disease ,medicine.anatomical_structure ,Oncology ,Biopsy ,medicine ,Fdg pet ct ,Bone marrow ,Radiology ,business - Published
- 2021
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4. Suppressed electric quadrupole collectivity in 49Ti
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T.J. Gray, J.M. Allmond, C. Benetti, C. Wibisono, L. Baby, A. Gargano, T. Miyagi, A.O. Macchiavelli, A.E. Stuchbery, J.L. Wood, S. Ajayi, J. Aragon, B.W. Asher, P. Barber, S. Bhattacharya, R. Boisseau, J.M. Christie, A.L. Conley, P. De Rosa, D.T. Dowling, C. Esparza, J. Gibbons, K. Hanselman, J.D. Holt, S. Lopez-Caceres, E. Lopez Saavedra, G.W. McCann, A. Morelock, B. Kelly, T.T. King, B.C. Rasco, V. Sitaraman, S.L. Tabor, E. Temanson, V. Tripathi, I. Wiedenhöver, and R.B. Yadav
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Physics ,QC1-999 - Abstract
Single-step Coulomb excitation of 46,48,49,50Ti is presented. A complete set of E2 matrix elements for the quintuplet of states in 49Ti, centred on the 2+ core excitation, was measured for the first time. A total of nine E2 matrix elements are reported, four of which were previously unknown. 2249Ti27 shows a 20% quenching in electric quadrupole transition strength as compared to its semi-magic 2250Ti28 neighbour. This 20% quenching, while empirically unprecedented, can be explained with a remarkably simple two-state mixing model, which is also consistent with other ground-state properties such as the magnetic dipole moment and electric quadrupole moment. A connection to nucleon transfer data and the quenching of single-particle strength is also demonstrated. The simplicity of the 49Ti-50Ti pair (i.e., approximate single-j 0f7/2 valence space and isolation of yrast states from non-yrast states) provides a unique opportunity to disentangle otherwise competing effects in the ground-state properties of atomic nuclei, the emergence of collectivity, and the role of proton-neutron interactions.
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- 2024
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5. Redox Metal-Ligand Cooperativity Enables Robust and Efficient Water Oxidation Catalysis at Neutral pH with Macrocyclic Copper Complexes
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Garrido-Barros P., Moonshiram D., Gil-Sepulcre M., Pelosin P., Gimbert-Suriñach C., Benet-Buchholz J., Llobet A. and Support from MINECO, FEDER, and AGAUR is gratefully acknowledged (CTQ2016-80058-R, SEV-2013-0319, ENE2016-82025-REDT, CTQ2016-81923-REDC, and 2017-SGR-1631). P.G.-B acknowledges the 'La Caixa' Foundation for the Ph.D. grant. D.M. acknowledges support from the Severo Ochoa Excellence program (SEV-2016-0686) from the Instituto IMDEA Nanociencia Acciones de Dinamization Europa Investigacion grant (EIN2019-103399), and the 'Ministerio de Ciencia, Innovacion y Universidades Grant' (PID2019-111086RA-I00). XAS experiments were performed at the CLAESS beamline at ALBA Synchrotron with the beamline support of the ALBA staff under proposal no. 2016091818 and additionally used resources of sector 20 beamline at the Advanced Photon Source (APS) at Argonne National Laboratory. Sector 20 beamline at APS is operated by the U.S DOE, under contract no. DE-AC02-06CH11357 and the Canadian Light Source.
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- 2020
6. Subsurface geological and geophysical data from the Po Plain and the northern Adriatic Sea (north Italy)
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M. Livani, L. Petracchini, C. Benetatos, F. Marzano, A. Billi, E. Carminati, C. Doglioni, P. Petricca, R. Maffucci, G. Codegone, V. Rocca, F. Verga, and I. Antoncecchi
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Environmental sciences ,GE1-350 ,Geology ,QE1-996.5 - Abstract
The Po Plain (Italy) is one of the most densely populated and productive regions of Europe, characterized by a flourishing economy (also linked to strategic subsurface resources) and several world cultural and natural heritage sites. The coupling of socio-economic interests with geological hazards (i.e. seismic, subsidence, and flooding hazards) in this area requires accurate knowledge of the subsurface geology, the active geological processes, and the impact of human activities on natural environments to mitigate the potential natural and anthropic risks. Most data unveiling the subsurface geology of this region were produced by the hydrocarbon exploration industry. Indeed, the Po Plain hosts many hydrocarbon fields that have been discovered since the early 1950s, giving rise to the subsurface exploration through extensive seismic reflection surveys and drilling of numerous deep wells. In this work, geological and geophysical data from 160 deep wells drilled for hydrocarbon exploration and/or exploitation purposes in the Po Plain and in the facing northern Adriatic Sea have been collected and digitized along with several published geological cross-sections and maps. These data have been used to reconstruct the overall subsurface 3D architecture and to extract the physical properties of the subsurface geological units. The digitized data are suitable to be imported into geo-software environments so as to derive the geophysical and mechanical properties of the geological units for a wealth of applied and scientific studies such as geomechanical, geophysical, and seismological studies. The integrated dataset may represent a useful tool in defining regional first-order strategies to ensure the safety of the urbanized areas and human activities and to reduce natural and anthropic risks that may affect this crucial region of Europe. In particular, the data collected would be useful to highlight sensible areas where data collection and more detailed studies are needed. Nowadays, such issues are particularly relevant for the underground industry development related to the increasing interest in possible CO2 and hydrogen underground storage, which can play a fundamental role in the energy transition process towards decarbonization goals. The full dataset is available at the following link: https://doi.org/10.5281/zenodo.8126519 (Livani et al., 2023).
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- 2023
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7. Values for αβ and γδ T-lymphocytes and CD4+, CD8+, and CD56+ subsets in healthy adult subjects: Assessment by age and gender
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Ferran Ballester, Juan Carlos Andreu-Ballester, J. Mayans, C. Benet-Campos, Victoria Amigo, A. Almela-Quilis, and Carlos Garcia-Ballesteros
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Adult ,CD4-Positive T-Lymphocytes ,Male ,medicine.medical_specialty ,Histology ,Adolescent ,CD3 Complex ,Receptors, Antigen, T-Cell, alpha-beta ,T cell ,CD3 ,Population ,CD8-Positive T-Lymphocytes ,Pathology and Forensic Medicine ,Flow cytometry ,Young Adult ,Sex Factors ,Antigen ,T-Lymphocyte Subsets ,Internal medicine ,medicine ,Humans ,Receptor ,education ,Aged ,Aged, 80 and over ,education.field_of_study ,biology ,medicine.diagnostic_test ,business.industry ,Age Factors ,Receptors, Antigen, T-Cell, gamma-delta ,Cell Biology ,Middle Aged ,Flow Cytometry ,CD56 Antigen ,medicine.anatomical_structure ,Endocrinology ,Health ,Immunology ,biology.protein ,Female ,business ,Cytometry ,CD8 - Abstract
Background: Normal reference values in healthy subjects for T-lymphocytes for both types of receptors, αβ and γδ, and their subsets are yet to be defined. The aim of this study was to measure peripheral blood αβ and γδ total T-lymphocytes and their subsets in a population of healthy subjects, in order to obtain valid reference values for studies in human pathology. Methods: We studied a total of 157 healthy subjects, 78 men and 79 women, establishing their levels of CD3+, CD4+, CD8+, CD56+, αβCD3+, αβCD3+CD4+, αβCD3+CD8+, αβCD3+CD56+, γδCD3+, γδCD3+CD4−CD8−, γδCD3+CD8+, and γδCD3+CD56+ T-cells by flow cytometry. The T-cell subsets were compared for different age and gender groups. Results: A significant decrease in CD3+, CD3+CD4+, CD3+CD4+ αβ, and CD3+ γδ T-cells was observed in elderly subjects. CD3+, CD3+ αβ, and CD3+CD4+ αβ T-cells increased in women, while CD3+CD56+ αβ T-cells increased in men. Conclusions. These reference values could be useful in further research studies for assessing changes that occur in the different αβ and γδ T subsets in human pathology. © 2012 International Clinical Cytometry Society
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- 2012
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8. Retroperitoneal extra-adrenal myelolipoma: Appearance in CT and MRI
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S Causeret, N Butori, F Collin, N Isambert, C Benet, and F Guy
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Myelolipoma ,Radiological and Ultrasound Technology ,medicine.diagnostic_test ,business.industry ,Extra-Adrenal ,Magnetic resonance imaging ,General Medicine ,medicine.disease ,Cytogenetics ,X ray computed ,Biopsy ,Medicine ,Radiology, Nuclear Medicine and imaging ,Tomography ,business ,Nuclear medicine ,Fatty tumours - Published
- 2012
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9. Myélolipome rétropéritonéal extra-surrénalien : aspects en TDM et en IRM
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F Collin, S Causeret, N Isambert, C Benet, F Guy, and N Butori
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business.industry ,Medicine ,business - Published
- 2012
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10. Image-guided needle biopsy for diagnosis and molecular biology in lymphomas
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C. Benet, E. de Kerviler, C. de Bazelaire, and Josette Brière
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Core needle ,medicine.medical_specialty ,Pathology ,Lymphoma ,Clinical Biochemistry ,Lymph node biopsy ,Diagnostic evaluation ,Specimen Handling ,Recurrence ,Image Interpretation, Computer-Assisted ,Biopsy ,Biomarkers, Tumor ,medicine ,Humans ,Tomography ,In Situ Hybridization, Fluorescence ,Ultrasonography ,medicine.diagnostic_test ,business.industry ,Biopsy, Needle ,medicine.disease ,Diagnostic strategy ,Immunohistochemistry ,Molecular analysis ,Oncology ,Needle biopsy ,Disease Progression ,Lymph Nodes ,Radiology ,business - Abstract
Core needle biopsy is increasingly replacing excisional lymph node biopsy in the diagnosis and subclassification of malignant lymphomas, with obvious advantages in terms of morbidity and costs. This technique has radically altered the diagnostic strategy of enlarged lymph nodes at our institution, avoiding unnecessary nodal excisions. It represents a viable alternative as long as the number and size of cores for morphologic and molecular studies are not compromised. This quick and safe technique can be applied to the initial diagnostic evaluation of malignant lymphomas as well as the reassessment of previously diagnosed malignant lymphomas at time of progression or recurrence.
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- 2012
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11. Guided needle biopsy: contribution to diagnosis and to laboratory testing
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A. Scemama, E. de Kerviler, C. de Bazelaire, Josette Brière, and C. Benet
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Oncology - Abstract
Les techniques de biopsies guidees par imagerie constituent une alternative raisonnable a l’exerese chirurgicale ganglionnaire dans le diagnostic d’une hemopathie lymphoide, a condition de realiser de multiples prelevements de grande taille, dont certains seront congeles pour des etudes moleculaires eventuelles.
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- 2011
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12. Interpreting the Drying Kinetics of a Soil Using a Macroscopic Thermodynamic Nonequilibrium of Water Between the Liquid and Vapor Phase
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B. Naon, Bruno Cousin, J. C. Benet, Fabien Cherblanc, Ali Chammari, Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Université Polytechnique Nazi Boni Bobo-Dioulasso (UNB), Couplages en Géomécanique et Biomécanique (CGB), and Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
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drying kinetics ,Water transport ,Computer simulation ,phase change ,Chemistry ,General Chemical Engineering ,Kinetics ,Vapor phase ,0211 other engineering and technologies ,0207 environmental engineering ,Non-equilibrium thermodynamics ,Thermodynamics ,natural attenuation ,02 engineering and technology ,Mass exchange ,porous media ,non-equilibrium ,Scientific method ,[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering ,Physical and Theoretical Chemistry ,020701 environmental engineering ,Porous medium ,021101 geological & geomatics engineering - Abstract
International audience; Two preliminary experiments show that a non-equilibrium situation can be easily encountered during a natural drying process. This leads us to reconsider the thermodynamic local equilibrium assumption, and propose a macroscopic two-equation model that takes into account mass exchange kinetics between the liquid and vapour phase. Numerical simulation of this theoretical model is then compared to experimental drying kinetics of soil columns. The discrepancies observed between the theoretical prediction and the experimental results are discussed. This contribution emphasizes the importance of such non-equilibrium phenomenon when modelling water transport in hygroscopic porous media.
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- 2008
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13. [Untitled]
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J. C. Benet and Thierry Ruiz
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chemistry.chemical_classification ,Heptane ,Materials science ,Volatilisation ,General Chemical Engineering ,Mineralogy ,Non-equilibrium thermodynamics ,Thermodynamics ,Catalysis ,chemistry.chemical_compound ,Hydrocarbon ,chemistry ,Soil water ,Vadose zone ,Porous medium ,Groundwater - Abstract
A theoretical and experimental analysis of the phase change of a volatile liquid in an unsaturated soil is presented. Expression of the rate of phase change of the pore liquid is developed within the framework of nonequilibrium thermodynamics. An experiment is proposed in which the value of the phenomenological coefficient associated with this expression is measured. Two examples of results concerning the volatilisation of water and of a volatile hydrocarbon in a silty clayey sand illustrate the potentiality of the experiment. Variation of the phase change coefficient was determined at 30°C for both fluids and at 80°C for heptane, versus the liquid content of the soil.
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- 2001
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14. SULA AND THE DESTABILISATIONS OF APOCALYPSE
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Helen C Benet-Goodman
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Literature and Literary Theory ,Religious studies - Published
- 1999
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15. FROM SIMULATION TO THE DESIGN OF AN INDUSTRIAL DRIER FOR NATURAL RUBBER IN GRANULE FORM
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G. Berthomieu, T. Lelong, C. Saix, J. C. Benet, and J. Sle. Beuve
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Engineering ,Natural rubber ,business.industry ,General Chemical Engineering ,visual_art ,Granule (cell biology) ,visual_art.visual_art_medium ,Mechanical engineering ,Physical and Theoretical Chemistry ,business - Abstract
This anick concerns the convective drying of natural rubber in granule form and aims at improving production. Parts of the research have already been published. With a validated mathematical model, il is possible to know the properties of the medium at any moment and for any point in the tayer. The research led to a simulation program for a zone-type industrial dnjir. The simulation program was used in an exhaustive study of the influence of the drying pifttfmeters for the design of a prototype industrial drier.
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- 1997
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16. TWO DIMENSIONAL SIMULATION OF DEHYDRATION OF A HIGHLY DEFORMABLEGEL : MOISTURE CONTENT, STRESS AND STRAW FIELDS
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J. C. Benet, I. Mrani, Z. Zrikem, and Gilles Fras
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Materials science ,Water transport ,Mechanical equilibrium ,General Chemical Engineering ,Cylinder (engine) ,law.invention ,Stress (mechanics) ,law ,Phase (matter) ,Relaxation (physics) ,Geotechnical engineering ,Physical and Theoretical Chemistry ,Composite material ,Deformation (engineering) ,Water content - Abstract
A model taking into account the simultaneous influence of mechanical and hygrometric actions (Mrani and al., 1995a, 1995b) was applied to study of the dehydration of a cylinder of highly deformable biphase gel (agar gel) (Mrani and al., 1995b). Numerical solution of the water transport equation and the mechanical equilibrium equation provided access to the water content and stresses and strains in the cylinder. The numerical results were validated for water content and overall deformation of gel cylinders. The model clearly shows the inversion of the curve of the faces of the cylinder observed experimentally. Three deformation phases were observed. In the first phase, when the concaveness of the faces of the cylinder was turned inwards, tractive stress appeared at the surface of the sample. More uniform distribution of the water content became established in a second phase and the cylinder recovered its initial shape corresponding to the relaxation of the stress state. In the third phase, the con...
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- 1997
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17. Transport of Water in a Biconstituent Elastic Medium
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I. Mrani, J. C. Benet, and Gilles Fras
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Materials science ,Rheology ,Mechanical Engineering ,Geotechnical engineering ,Deformation (meteorology) ,Composite material - Abstract
A phenomenological equation is established for water transport in a biconstituent, isotropic, isothermal elastic medium. The equation includes a term related to the water content gradient and a term related to the deformation gradient. It is shown that in the case of an infinite plate, the transport law can be similar to Fick’s law in which water flux is proportional to the water content gradient alone. The apparent transport coefficient then depends on the hygroscopic and rheological coefficients of the medium. Experimental analysis of the evolution of water content profiles of agar gel plates validates this transport law and makes it possible to deduce the variation in apparent transport coefficient according to water content. Transport coefficients associated with water content and deformation gradients and applicable to any geometrical features are deduced.
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- 1995
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18. Budget Impact of Bronchial Thermoplasty In Patients with Uncontrolled Severe Asthma
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R Marty, C Benet, N Saidani, P Chanez, M Aubier, and A Croisille
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medicine.medical_specialty ,Bronchial thermoplasty ,business.industry ,Health Policy ,Severe asthma ,Public Health, Environmental and Occupational Health ,Medicine ,In patient ,Budget impact ,business ,Intensive care medicine - Published
- 2016
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19. Microstructure et propriétés hygro-mécaniques du gel d'agar
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J. C. Benet, I. Mrani, and Gilles Fras
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Materials science ,General Engineering ,General Physics and Astronomy ,Molecular biology - Abstract
Cette etude aborde la mesure des proprietes d'un biopolymere, le gel d'agar, au cours d'un processus de deshydratation. La morphologie du gel est mise en evidence par des observations au microscope electronique en utilisant une technique de cryofracture ; il est montre que la morphologie initiale diphasique du gel d'agar est preservee lors de l'evolution de la teneur en eau. L'etude des proprietes hygroscopiques du gel, par la determination de l'isotherme de desorption, permet, en particulier, de situer le domaine hygroscopique du materiau. On etudie ensuite le retrait du gel d'agar, par la determination des variations du coefficient de contraction et du coefficient d'expansion hygrometrique, en fonction de l'humidite du milieu. On aborde enfin l'etude rheologique du gel qui presente un comportement macroscopique elastique. La variation du module de Young en fonction de la teneur en eau est determinee par des essais de compression simple. Ce resultat est ensuite combine a des mesures de la vitesse de propagation d'ondes ultrasonores pour determiner la variation du coefficient de Poisson avec la teneur en eau.
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- 1995
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20. Improvement of Industrial Drying of Natural Rubber Through Analysis of Heat and Mass Transfers
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B. Naon, C. Saix, J. C. Benet, and G. Berthomieu
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Thin layers ,Waste management ,General Chemical Engineering ,Granule (cell biology) ,Environmental engineering ,Granular material ,Natural rubber ,Mass transfer ,visual_art ,Heat transfer ,visual_art.visual_art_medium ,Environmental science ,Relative humidity ,Physical and Theoretical Chemistry ,Water content - Abstract
An analysis of convective drying of natural rubber in granule form. Exploitation of the mathematical model developed from analysis of internal transfers requires determination of the ‘drying rate’ and the ‘energy exchange coefficient’ between the material and the drying air. This was performed using a portable laboratory drier at the production site, avoiding the problem of changes in the material during transport. Analysis of the drying kinetics of material in thin layers led to modelling the drying rate at the temperatures, rates and relative humidity values encountered in industrial driers. The energy exchange coefficient was found by measurement of air and granule temperatures. Thick layer trials showed the suitability of the model for simulation of changes in moisture content and temperature of air and granules in a granular environment. The study as a whole led to the development of a computer program for simulating a zone drier. This software can be used to optimise the management of an in...
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- 1995
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21. Modelling Convective Drying of Granular Materials : Application to Natural Rubber
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B. Naon, J. C. Benet, C. Saix, and G. Berthomieu
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Convection ,Materials science ,General Chemical Engineering ,Intergranular corrosion ,Granular material ,Flux (metallurgy) ,Settling ,Natural rubber ,visual_art ,visual_art.visual_art_medium ,Relative humidity ,Physical and Theoretical Chemistry ,Composite material ,Water content - Abstract
The mathematical model proposed enables the description of mass and energy transfers during convection drying of granular materials. It shows evolution of the water content of the material in time and space, air and grain temperature, relative humidity of intergranular air, settling of the layer. mass energy and mass power input. Operation of the model requires experimenral determination of the water exchange coefficient between the material and drying air using thin layer drying kinetics. The software proposed enables the simulation of thick layers of granular material, as in an industrial drier. It is applied to the drying of natural rubber, taking into account the characteristics of the drying air and the flux direction in each drier zone. The aim of simulation is to optimise drying panmeters for improvement of the management and possibly the design or industrial driers.
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- 1995
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22. Numerical Study of Drying Stresses in Agar Gel
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J. C. Benet, Gilles Fras, and I. Mrani
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Water transport ,food.ingredient ,Materials science ,General Chemical Engineering ,medicine.disease ,Agar gel ,Isothermal process ,food ,medicine ,Agar ,Geotechnical engineering ,Dehydration ,Physical and Theoretical Chemistry ,Composite material ,Sugar ,Water content ,Shrinkage - Abstract
ABSTRACT A numerical model of isothermal drying of deformable substances is proposed. The model is applied in a uni-directional case to analysis of water transport in a sphere of agar ge. The simulation program makes it possible to calculate the water content fields and def rmations and stresses in the sphere during drying. Validation of the water content profile results is proposed by the experimental study of the dehydration of gel spheres in a sugar solution. The sensitivity of internal stresses to drying conditions is then analysed.
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- 1995
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23. Physical approach to averaging theorems on phase interfaces in a dispersed multiphase medium
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J. C. Benet and G. Fras
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Surface (mathematics) ,Basis (linear algebra) ,General Chemical Engineering ,Phase (matter) ,Multiphase flow ,Mathematical analysis ,Representative elementary volume ,Balance equation ,Geometry ,Differential calculus ,Convection–diffusion equation ,Catalysis ,Mathematics - Abstract
Within the framework of a procedure for scale-changing by averaging a representative elementary volume, theorems are developed to relate the averages of derivatives to the derivatives of averages over a surface, using elementary differential calculus. These theorems form the basis of a general macroscopic balance equation for a given quantity over interfaces of a dispersed multiphase medium. The equations of phase interfaces complement equations related to bulk phases describing transport in dispersed multiphase media.
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- 1994
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24. Strains and Stresses Induced by Water Transport in Hygroscopic Elastic Media
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I. Mrani, J. C. Benet, Gilles Fras, Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Michel Frémond, and Franco Maceri
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Work (thermodynamics) ,Materials science ,Water transport ,Transport coefficient ,Isotropy ,04 agricultural and veterinary sciences ,02 engineering and technology ,021001 nanoscience & nanotechnology ,040401 food science ,Isothermal process ,[SPI]Engineering Sciences [physics] ,0404 agricultural biotechnology ,Natural rubber ,visual_art ,visual_art.visual_art_medium ,Composite material ,0210 nano-technology - Abstract
International audience; We propose to analyse the phenomenological equation of water transport in a biconstituent medium with stresses. The work is limited to the case of elastic, isotropic behaviour and an isothermal transfer process.
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- 2004
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25. La classification histopathologique simplifiée des tumeurs présentée à l’aide d’un outil pédagogique collaboratif en ligne en mode zoom
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F. Loiseaux, Maggy Grossin, Philippe Bertheau, J.-M. Harimenshi, Jacqueline Rivet, David Ameisen, Maxime Battistella, Brigitte Roche, A. Osio, Koffi Amegbor, Anne Janin, C. Benet, A. Bin Asker, A de Roquancourt, Jérôme Verine, Véronique Meignin, and Josette Brière
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Pathology and Forensic Medicine - Published
- 2012
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26. The application of multivariate techniques to data from spanish glass-making objects from the Roman Era
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D.L. Massart, F.X. Ruis, C. Benet, A. Thielemans, M.S. Larrechi, and E. Subias
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Analisis factorial ,Multivariate statistics ,Multivariate analysis ,Chemistry ,Principal component analysis ,Statistics ,Environmental Chemistry ,Spectral analysis ,Biochemistry ,Spectroscopy ,Factor space ,Analytical Chemistry ,Visualization - Abstract
Three multivariate techniques (principal components analysis, correspondence factor analysis and spectral map analsis) are applied to x-ray fluorescence data from glass-making objects from the 5th century AD found in Tarragona (Tarraco in the Roman Empire). The information obtained by displaying th eobjects and variables in each reduced factor space is compared. The presence of redundant information is shown. The visualization of groups of objects and of the relationship between objects and variables allows the formulation of hypotheses concerning the origin of the samples and the presence of local glassworks.
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- 1989
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27. Transferts de chaleur dans la zone non saturée
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P. Jouanna, C. Saix, and J. C. Benet
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Water Science and Technology - Abstract
On propose une methode d'elaboration de modeles mathematiques permettant d'aborder les applications liees a l'exploitation thermique du sous-sol. Cette methode, basee sur la thermodynamique des processus irreversibles, est illustree dans le cas du stockage de chaleur dans les sols non satures. On presente les resultats experimentaux d'une aire d'essai de stockage de chaleur ; ces resultats sont utilises pour : 1) Analyser les modifications provoquees par le stockage dans la couche de sol non saturee. 2) Valider le modele mathematique et proposer un modele simplifie du site de stockage.
- Published
- 1985
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28. Mesure de la conductivité thermique des sols par sonde cylindrique en régime transitoire Étude de l’influence du mode de mise en place de la sonde
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P. Pomade, J. C. Benet, and P. Hinzelin
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Physics ,Mechanics of Materials ,General Engineering ,General Materials Science ,Building and Construction ,Humanities ,Civil and Structural Engineering - Abstract
Nous etudions la mesure de la conductivite thermique des sols a l’aide d’une sonde cylindrique en regime transitoire et nous examinons en particulier l’influence des conditions de mise en place de la sonde.
- Published
- 1977
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29. Theoretical Model of Heat and Mass Transfer in Non-Saturated Soils with Phase Change
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P. Jouanna and J. C. Benet
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Phase change ,Work (thermodynamics) ,Lead (geology) ,Materials science ,Mass transfer ,Thermodynamics ,Saturated soils ,Thermal energy storage ,Porous medium ,Water vapor - Abstract
The purpose of this work was to elaborate a mathematical model describing the evolution of non-saturated soil used as a heat storage medium. The high temperatures encountered in this application lead to important elementary phenomena as far as heat and mass transfer are concerned but which are often negligible at ambient temperatures.
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- 1981
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30. Physical Model for the Study of Mass and Energy Transfers in the Non-Saturated Layer of Soil Located Above a Solar Energy Storage
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D. Koufogiannis, C. Saix, G. Della-Valle, P. Jouanna, and J. C. Benet
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Solar energy storage ,Materials science ,Energy transfer ,Soil science ,Layer (electronics) ,Physics::Geophysics - Abstract
The aim of the project is to study the mass and energy transfers in a non-saturated layer of soil placed above a saturated layer.
- Published
- 1983
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31. Physical Model for the Study of Mass and Energy Transfers in the Non-Saturated Layer of Soil Located Above a Solar Energy Storage Zone
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G. Della-Valle, P. Jouanna, J. C. Benet, and C. Saix
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Solar energy storage ,Hydrology ,Energy transfer ,Environmental science ,Soil science ,Layer (object-oriented design) ,Thermal energy storage ,Large size ,Natural (archaeology) ,Energy storage ,Energy (signal processing) - Abstract
The efficiency of energy storage in a saturated layer is linked to a great extend to the energy and matter losses through the non-saturated layer of soil lying above the saturated layer used as a storage zone. In order to study this problem we constructed a physical model of sufficiently large size. A test programme has made it possible to simulate heat storage at 60° C. The surface of the soil was subjected to controlled conditions and then natural atmospheric conditions. The physical model serves as a prototype for the study of the behaviour of a natural site. The evolutions of the physical model make it possible to judge the modifications in the state of the non-saturated layer of soil and to come to conclusions regarding possible harmful effects of storage. The physical model has given experimental results that confirm the validity of a local three-phase mathematical model. This confirmation allows this model to be used in the future for making forecasts for other sites.
- Published
- 1984
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32. Acute abdomen in children: a continuous challenge. Two cases report: Meckel’s Diverticulum with Small Bowel Volvolus and Internal Herniation related to Epiploic Appendagitis mimicking acute appendicitis
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M. Gasparella, M. Ferro, M. Marzaro, C. Benetton, C. Zanatta, and F. Zoppellaro
- Subjects
Pediatric ,Caecal appendagitis ,appendices epiploicae ,acute abdomen ,Meckel’s Diverticulum ,Small Bowel Obstruction ,Pediatrics ,RJ1-570 ,Surgery ,RD1-811 - Abstract
Acute abdomen is a continuous clinical challenge in pediatric age. The aim of our study is to describe two pediatric rare cases: the first case is a small bowel volvolus related to Meckel’s diverticulum confused with an intestinal intussusception; the second an internal herniation related to epiploic appendagitis with intestinal obstruction mimic acute appendicitis in two years old children. We review the current literature. Keywords: Pediatric, Caecal appendagitis, appendices epiploicae, acute abdomen, Meckel’s Diverticulum, Small Bowel Obstruction, Volvolus, Internal hernia, Appendicitis.
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- 2014
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33. Non-palpable testis in chilhood: the role of the laparoscopy. Our experience
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M. Gasparella, M. Marzaro, M. Ferro, C. Benetton, V. Ghirardo, and F. Zoppellaro
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Cryptorchidism ,Testis ,Laparoscopy ,Testicular Cancer ,Pediatric ,Pediatrics ,RJ1-570 ,Surgery ,RD1-811 - Abstract
Not available
- Published
- 2013
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34. Source parameters of the M 6.5 Skyros Island (North Aegean Sea) earthquake of July 26, 2001
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A. Kiratzi, Z. Roumelioti, C. Benetatos, and N. Melis
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source parameters ,Skyros earthquake ,Aegean ,Meteorology. Climatology ,QC851-999 ,Geophysics. Cosmic physics ,QC801-809 - Abstract
Teleseismic body wave modelling, time domain moment tensor inversion of regional waveforms and spectral analysis of the far-field P-wave pulses are used to derive the source parameters of the July 26, 2001 Skyros earthquake (M 6.5). Its epicentre is located south of the Sporades Islands in the North Aegean Sea (Greece). Previous focal mechanism solutions indicate motion on strike-slip faults. The time domain moment tensor inversion is applied for the first time to the regional waveforms of the recently established broadband network in Greece. Its application gave results which are highly consistent with teleseismic waveform modelling. The results of this study, in combination with the distribution of aftershocks, indicate left-lateral strike slip motion on a NW-SE striking fault with parameters: fault plane (strike = 151°, dip = 83°, rake = 7°) and auxiliary plane (strike = 60°, dip = 84°, rake = 173°), depth 12 km and M 0 = 5.98e18 N m. Moreover, the time domain moment tensor inversion technique yielded a pure double couple source with negligible CLVD. The spectral analysis of the far-field P-wave pulses resulted in a fault length L ~ 32 km, stress drop ~ 9 bars and average displacement u ~ 30 cm.These values are in very good agreement with those estimated from empirical scaling relations applicable to the Aegean area.
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- 2002
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35. Elevated CO2 Concentrations and Water Stress Affect the Ability of Italian Ryegrass to Remediate Herbicides and Enhance its Allelopathic Effect
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L.P. SILVEIRA, A.R. FEIJÓ, C. BENETTI, J.P. REFATTI, M.V. FIPKE, E.R. CAMARGO, L.H. ZISKA, and L.A. AVILA
- Subjects
climate change ,Lolium multiflorum L. ,remediation ,and allelopathy ,Biology (General) ,QH301-705.5 ,Botany ,QK1-989 - Abstract
ABSTRACT: The long temporal persistence of select herbicides negatively impacts crops sown in succession to irrigated rice. One way to reduce these compounds in the soil over time is through phytoremediation. However, elevated CO2 concentrations may interfere with the phytoremediation process. Another consequence of climate change is the production of allelopathic compounds by forage species used as remedial agents. This study aimed to evaluate the impact of elevated CO2 concentration and drought stress on the remediation of soil samples contaminated with imazapyr + imazapic herbicides by Italian ryegrass and any subsequential affect on the allelopathic effect of this species. We report that the increasing CO2 decreased the phytoremediation potential of ryegrass. Water stress combined with a CO2 concentration of 700 µmol mol-1 caused increased allelopathy. Overall, these are the first data to indicate a significant effect of higher CO2 levels with respect to both phytoremediation efficacy and allelopathic potential of the plant species used in phytoremediation.
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36. Fostamatinib effectiveness and safety for immune thrombocytopenia in clinical practice.
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González-López TJ, Bermejo-Vega N, Cardesa-Cabrera R, Martínez-Robles V, Aguilar-Monserrate G, Pérez-Segura G, Domingo A, Luis-Navarro J, Lakhwani S, Acedo N, Lozano ML, Bernat S, Torres-Tienza A, Ruano A, Jarque I, Galán P, Benet C, Marcellini S, Jimenez-Bárcenas R, Martínez-Carballeira D, De Miguel-Llorente D, Perona-Blázquez A, Gonzalez-Gascón I, Lopez-Ansoar E, Alonso-Alonso JM, Bengochea-Casado ML, Díaz-Gálvez FJ, Moretó A, Moreno-Jiménez G, Hernández-Martin R, de Cabo E, Dávila-Valls J, Cuesta A, Pastoriza C, Hermida-Fernández GJ, García C, Pozas-Mañas MA, Aguilar C, Fernandez-Jimenez D, Navas-Elorza B, López-Santamaría Castro C, Lorenzo A, Ortín X, García M, Piernas S, Díaz-Santa J, Soto I, Provan D, and García-Donas Gabaldón G
- Subjects
- Humans, Female, Male, Middle Aged, Aged, Aged, 80 and over, Retrospective Studies, Treatment Outcome, Syk Kinase antagonists & inhibitors, Protein Kinase Inhibitors therapeutic use, Protein Kinase Inhibitors adverse effects, Platelet Count, Prospective Studies, Purpura, Thrombocytopenic, Idiopathic drug therapy, Oxazines therapeutic use, Oxazines adverse effects, Pyrimidines therapeutic use, Pyrimidines adverse effects, Morpholines therapeutic use, Morpholines adverse effects, Pyridines therapeutic use, Pyridines adverse effects, Aminopyridines therapeutic use, Aminopyridines adverse effects
- Abstract
Abstract: Fostamatinib, a recently approved Syk inhibitor used in adult primary immune thrombocytopenia (ITP), has been shown to be safe and effective in this disorder. However, clinical trial results may not be similarly reproduced in clinical practice. Here, 138 patients with ITP (both primary and secondary) from 42 Spanish centers who had been treated with fostamatinib were evaluated prospectively and retrospectively. The median age of our cohort (55.8% women) was 66 years (interquartile range [IQR], 56-80). The median time since ITP diagnosis at fostamatinib initiation was 51 months (IQR, 10-166). The median number of therapies before fostamatinib initiation was 4 (IQR, 2-5), including eltrombopag (76.1%), romiplostim (57.2%), and IV immunoglobulins (44.2%). Fifty-eight patients (42.0%) had signs/symptoms of bleeding in the month before treatment initiation. Seventy-nine percent of patients responded to fostamatinib with 53.6% complete responses (platelet count > 100 × 109/L). Eighty-three patients (60.1%) received fostamatinib monotherapy, achieving a high response rate (85.4%). The proportion of time in response during the 27-month period examined was 83.3%. The median time to platelet response was 11 days (IQR, 7-21). Sixty-seven patients (48.5%) experienced adverse events, mainly grade 1 to 2; the commonest of which were diarrhea (n = 28) and hypertension (n = 21). One patient had deep venous thrombosis, and one patient developed acute myocardial infarction. Fostamatinib was shown to be effective with good safety profile in patients with primary and secondary ITP across a wide age spectrum in this real-world study., (© 2024 American Society of Hematology. Published by Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.)
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- 2024
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37. WHO/ICC Classification for Myelodysplastic Neoplasms/Syndromes Performs Better for Subtype Cytomorphological Diagnosis?
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Vicente AI, Luna I, Ruiz JC, Remigia MJ, Jerez A, Lluch R, Llopis I, Marco MJ, Benet C, Alonso C, Linares MD, Serrano L, Orero MT, Ortuño FJ, and Senent ML
- Abstract
The International Consensus Classification of Myeloid Neoplasms and Acute Leukemias (ICC) and the 5th edition of the WHO classification (WHO 2022) have refined the diagnosis of myelodysplastic syndromes (MDS). Both classifications segregate MDS subtypes based on molecular or cytogenetic findings but rely on the subjective assessment of blast cell percentage and dysplasia in hematopoietic cell lineages. This study aimed to evaluate interobserver concordance among 13 cytomorphologists from eight hospitals in assessing blast percentages and dysplastic features in 44 MDS patients. The study found fair interobserver agreement for the PB blast percentage and moderate agreement for the BM blast percentage, with the best concordance in cases with <5% BM blasts and >10% BM blasts. Monocyte count agreement was fair, and dysplasia assessment showed moderate concordance for megakaryocytic lineage but lower concordance for erythroid and granulocytic lineages. Overall, interobserver concordance for MDS subtypes was moderate across all classifications, with slightly better results for WHO 2022. These findings highlight the ongoing need for morphological evaluation in MDS diagnosis despite advances in genetic and molecular techniques. The study supports the blast percentage ranges established by the ICC but suggests refining BM blast cutoffs. Given the moderate interobserver concordance, a unified classification approach for MDS is recommended.
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- 2024
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38. Accuracy and prognostic impact of FDG PET/CT and biopsy in bone marrow assessment of follicular lymphoma at diagnosis: A Nation-Wide cohort study.
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Ródenas-Quiñonero I, Chen-Liang T, Martín-Santos T, Salar A, Fernández-González M, Celades C, Navarro JT, Martínez-Garcia AB, Andreu R, Balaguer A, Martin García-Sancho A, Baile M, López-Jiménez J, Marquet-Palomanes J, Teruel AI, Terol MJ, Benet C, Frutos L, Navarro JL, Uña J, Suarez M, Cortes M, Contreras J, Ruiz C, Tamayo P, Mucientes J, Sopena-Novales P, Reguilón-Gallego L, Sánchez-Blanco JJ, Pérez-Ceballos E, Jerez A, and Ortuño FJ
- Subjects
- Humans, Fluorodeoxyglucose F18, Bone Marrow diagnostic imaging, Bone Marrow pathology, Prognosis, Cohort Studies, Retrospective Studies, Positron-Emission Tomography methods, Biopsy, Positron Emission Tomography Computed Tomography methods, Lymphoma, Follicular diagnostic imaging, Lymphoma, Follicular pathology
- Abstract
Backgound: In the workup of follicular lymphoma (FL), bone marrow biopsy (BMB) assessment is a key component of FLIPI and FLIPI2, the most widely used outcome scores. During the previous decade, several studies explored the role of FDG-PET/CT for detecting nodal and extranodal disease, with only one large study comparing both techniques., Methods: The aim of our study was to evaluate the diagnostic accuracy and the prognostic impact of both procedures in a retrospective cohort of 299 FL patients with both tests performed at diagnosis. In order to avoid a collinearity bias, FLIPI2 was deconstructed in its founding parameters, and the bone marrow involvement (BMI) parameter separately included as: a positive BMB, a positive PET/CT, the combined "PET/CT and BMB positive" or "PET/CT or BMB positive". These variables were also confronted independently with the POD24 in 233 patients treated with intensive regimens., Results: In the total cohort, bone marrow was involved in 124 and 60 patients by BMB and PET/CT, respectively. In terms of overall survival, age > 60 y.o. and the combined "PET/CT or BMB positive" achieved statistical independence as a prognostic factor. In patients treated with an intensive regimen, only the combined "PET/CT or BMB positive" added prognostic value for a shorter overall survival, when confronted with the POD24., Conclusion: Our results show that in FL both BMB and PET/CT should be considered at diagnosis, as their combined assessment provides independent prognostic value in the context of the most widely use clinical scores., (© 2022 The Authors. Cancer Medicine published by John Wiley & Sons Ltd.)
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- 2023
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39. Anti-Anisakis sp. antibodies in serum of patients with sepsis and their relationship with γδ T cells and disease severity.
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Andreu-Ballester JC, Zamora V, Garcia-Ballesteros C, Benet-Campos C, Lopez-Chuliá F, Tormo-Calandín C, and Cuéllar C
- Subjects
- Aged, Animals, Anisakiasis complications, Anisakiasis epidemiology, Anisakiasis immunology, Antibodies, Helminth blood, Female, Humans, Immunoglobulins blood, Male, Middle Aged, Sepsis blood, Spain epidemiology, T-Lymphocyte Subsets physiology, Anisakis immunology, Receptors, Antigen, T-Cell, alpha-beta metabolism, Receptors, Antigen, T-Cell, gamma-delta metabolism, Sepsis complications, T-Lymphocyte Subsets classification
- Abstract
Immunosuppression in sepsis reduces both αβ and γδ T cell subsets. Anisakis sp. is a parasitic nematode with a high prevalence in Spain. Previous contact with the parasite is related to a decrease in γδ T cells. Anti-Anisakis antibodies were measured and related to αβ and γδ T cells in 114 septic patients versus 97 healthy controls. Significant differences were seen with respect to the groups with severe sepsis and septic shock where lower anti-Anisakis levels were observed. A similar decrease appeared in the case of specific IgM with significant differences between the groups of control/uncomplicated sepsis versus severe sepsis and septic shock. These differences were also apparent in the case of specific IgA. The lowest IgE levels were detected in the septic shock group. Anti-Anisakis IgG levels significantly increased in septic shock groups compared with the controls. We observed positive correlations among anti-Anisakis IgA levels and all γδ T cell subsets. There were negative correlations among IgA levels and APACHE and SOFA indices. Greater contact with the parasite (IgG) was directly related with septic shock, inflammation and markers of sepsis severity. A lack of protection in the mucosa (IgA and γδ T cells) was associated with the disease severity., (Copyright © 2018 Australian Society for Parasitology. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2018
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40. B1a Lymphocytes (CD19+CD5+) Deficiency in Patients with Crohn's Disease and Its Relation with Disease Severity.
- Author
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Gil-Borras R, García-Ballesteros C, Benet-Campos C, Catalán-Serra I, López-Chuliá F, Cuéllar C, and Andreu-Ballester JC
- Subjects
- Adult, Crohn Disease blood, Crohn Disease diagnostic imaging, Female, Hospitalization, Humans, Intestinal Mucosa pathology, Kaplan-Meier Estimate, Male, Middle Aged, Prospective Studies, Tomography, X-Ray Computed, Treatment Outcome, Wound Healing, Antigens, CD19 metabolism, CD5 Antigens metabolism, Crohn Disease immunology, Lymphocytes pathology, Severity of Illness Index
- Abstract
Background/aims: B1a cells (CD19+CD5+) are considered elements of the innate immune system. The aim of this study was to evaluate the frequency of B1a cells in the peripheral blood of patients with Crohn's disease (CD) and its relation with disease severity., Methods: In this prospective study, a total of 128 subjects (64 CD patients and 64 healthy controls) were studied. B1a cells in peripheral blood, CD Activity Index, and Simple Endoscopic Score of B1a cells were studied., Results: A significant decrease of B1a cells in peripheral blood was observed in patients with CD versus controls (p = 0.002), especially in perforating or penetrating patterns (p = 0.017). A lower frequency of B1a cells is related to increased endoscopic severity (Spearman's Rho: -0.559, p = 0.004). The mean frequency of B1a cells in patients with pre- and post-study surgery was significantly lower than that in patients who did not undergo surgery (p = 0.050 and p = 0.026, respectively)., Conclusions: The B1a cell count in peripheral blood is lower in CD patients. This decrease is directly related to the severity of the disease (penetrating or perforating, Simple Endoscopy Score and surgery complication). These results pointed to the fact that B1a cells play an important role in immune protection in CD., (© 2018 S. Karger AG, Basel.)
- Published
- 2018
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41. Bone marrow biopsy superiority over PET/CT in predicting progression-free survival in a homogeneously-treated cohort of diffuse large B-cell lymphoma.
- Author
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Chen-Liang TH, Martín-Santos T, Jerez A, Rodríguez-García G, Senent L, Martínez-Millán C, Muiña B, Orero M, Teruel A, Martín A, Gómez-Espuch J, Kennedy K, Benet C, Raya JM, Fernández-González M, de la Cruz F, Guinot M, Villegas C, Ballester I, Baile M, Moya M, López-Jiménez J, Frutos L, Navarro JL, Uña J, Fernández-López R, Igua C, Contreras J, Sánchez-Vañó R, Cozar MDP, Tamayo P, Mucientes J, Sánchez-Blanco JJ, Pérez-Ceballos E, and Ortuño FJ
- Subjects
- Adolescent, Adult, Age Factors, Aged, Aged, 80 and over, Antibodies, Monoclonal, Murine-Derived therapeutic use, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Biopsy, Cyclophosphamide therapeutic use, Disease-Free Survival, Doxorubicin therapeutic use, Female, Follow-Up Studies, Health Status, Humans, Lymphoma, Large B-Cell, Diffuse drug therapy, Male, Middle Aged, Multivariate Analysis, Predictive Value of Tests, Prednisone therapeutic use, Retrospective Studies, Rituximab administration & dosage, Survival Rate, Vincristine therapeutic use, Young Adult, beta 2-Microglobulin blood, Bone Marrow diagnostic imaging, Bone Marrow pathology, Lymphoma, Large B-Cell, Diffuse diagnostic imaging, Lymphoma, Large B-Cell, Diffuse pathology, Positron Emission Tomography Computed Tomography
- Abstract
Several studies have reported uneven results when evaluating the prognostic value of bone marrow biopsy (BMB) and PET/CT as part of the staging of diffuse large B-cell lymphoma (DLBCL). The heterogeneity of the inclusion criteria and not taking into account selection and collinearity biases in the analysis models might explain part of these discrepancies. To address this issue we have carried a retrospective multicenter study including 268 DLBCL patients with a BMB and a PET/CT available at diagnosis where we estimated both the prognosis impact and the diagnostic accuracy of each technique. Only patients treated with R-CHOP/21 as first line (n = 203) were included in the survival analysis. With a median follow-up of 25 months the estimated 3-year progression-free survival (PFS) and overall survival (OS) were 76.3% and 82.7% respectively. In a multivariate analysis designed to avoid a collinearity bias with IPI categories, BMB-BMI [bone marrow involvement](+) (HR: 3.6) and ECOG PS > 1 (HR: 2.9) were independently associated with a shorter PFS and three factors, age >60 years old (HR: 2.4), ECOG PS >1 (HR: 2.4), and abnormally elevated B2-microglobulin levels (HR: 2.2) were independently associated with a shorter OS. In our DLBCL cohort, treated with a uniform first-line chemotherapy regimen, BMI by BMB complemented performance status in predicting those patients with a higher risk for relapse or progression. In this cohort BMI by PET/CT could not independently predict a shorter PFS and/or OS., (© 2017 The Authors. Cancer Medicine published by John Wiley & Sons Ltd.)
- Published
- 2017
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42. Determination of Anti-Anisakis Simplex Antibodies and Relationship with αβ and γδ Lymphocyte Subpopulations in Patients with Crohn's Disease.
- Author
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Benet-Campos C, Cuéllar C, García-Ballesteros C, Zamora V, Gil-Borrás R, Catalán-Serra I, López-Chuliá F, and Andreu-Ballester JC
- Subjects
- Adult, Animals, Female, Humans, Immunoglobulin G blood, Immunoglobulin M blood, Male, Middle Aged, Anisakis metabolism, Antibodies, Helminth blood, Crohn Disease blood, Crohn Disease diagnosis, Lymphocyte Subsets metabolism
- Abstract
Background: The etiology of Crohn's disease (CD) is still unknown although new theories are based on defects in innate immunity. We have previously shown a decrease in γδ T cells in CD patients. Previous studies have shown a high prevalence of anti-A. simplex immunoglobulins in CD patients. The diminution of γδ T cells in the peripheral blood and intestinal mucosa of CD patients may create a state of immunosuppression that would facilitate A. simplex infection., Aims: To study the antibody responses to Anisakis antigens in Crohn's disease patients and its relationship with αβ and γδ T cell subsets., Methods: We recruited 81 CD patients and 81 healthy controls. αβ and γδ T cell subsets and anti-A. simplex antibodies were measured., Results: Levels of anti-A. simplex IgG and IgM were significantly increased in CD patients. Almost 20% of CD patients were positive for IgG and IgM anti-A. simplex versus only 3.7 and 2.5%, respectively, in normal subjects. However, lower specific IgA levels were observed in the group of CD patients versus healthy subjects. We found an association between CD3 + CD8 + γδ subset and IgM anti-A. simplex levels. In ileal cases and stricturing behavior of CD, we observed the highest levels of specific antibodies with the exception of anti-A. simplex IgA., Conclusions: The relationship of specific antibodies with a γδ T cell deficiency makes these cell candidates to play a role in the immune response against Anisakis. In addition, anti-Anisakis antibodies could be considered as markers of risk of progression in CD.
- Published
- 2017
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43. Anti-Anisakis sp. antibodies in serum of healthy subjects. Relationship with αβ and γδ T cells.
- Author
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Zamora V, García-Ballesteros C, Benet-Campos C, Ballester F, Cuéllar C, and Andreu-Ballester JC
- Subjects
- Adult, Aged, Aged, 80 and over, Animals, Anisakiasis epidemiology, Female, Humans, Male, Middle Aged, Spain epidemiology, T-Lymphocyte Subsets metabolism, Anisakiasis immunology, Anisakis immunology, Antibodies, Helminth blood, Receptors, Antigen, T-Cell, alpha-beta metabolism, Receptors, Antigen, T-Cell, gamma-delta metabolism, T-Lymphocyte Subsets classification
- Abstract
Anisakiosis is nowadays one of the nematodoses more prevalent in Spain, with rates that oscillate between 0.43% in Galicia (N.W. Spain), and 15.7% and 22.1% in inland and southern regions, respectively. Likewise, it has been proved that Anisakis larvae have developed mechanisms to modulate the dichotomy of the host immune response for their own benefit. The experimental hypothesis of the present study was that Anisakis sp. larval products can be mediators of immune suppression and induce changes on the populations of αβ+ and γδ+ T cells. In the present study we determined the levels of anti-Anisakis antibodies in the serum of healthy people, and their relationship with the B and T cell subsets. Levels of anti-Anisakis antibodies (Ig's, IgG, IgM, IgA and IgE) were measured by ELISA, while B and T cell subsets were studied by flow cytometry. Cells were labelled with monoclonal antibodies against CD45, CD4, CD8, CD56, CD3, CD19, TCRαβ and TCRγδ. All the specific isotypes studied were negatively correlated with NKT cell rates with the exception of IgG. A previous contact with Anisakis was related to a decrease in CD56+αβ+ and all γδ+ T cell subsets. The CD3+γδ+ population was lower in the group of subjects that showed IgA anti-Anisakis. We observed an inverse correlation among αβ-γδ NKT cells and anti-Anisakis sp. antibodies. CD3+CD56+ cells showed a significant decrease in the group of anti-Anisakis positive subjects. This fact was especially significant with CD3+CD56+γδ+ cells in the case of the anti-Anisakis IgA positive group.
- Published
- 2017
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44. Long-term follow-up analysis of 100 patients with splenic marginal zone lymphoma treated with splenectomy as first-line treatment.
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Lenglet J, Traullé C, Mounier N, Benet C, Munoz-Bongrand N, Amorin S, Noguera ME, Traverse-Glehen A, Ffrench M, Baseggio L, Felman P, Callet-Bauchu E, Brice P, Berger F, Salles G, Brière J, Coiffier B, and Thieblemont C
- Subjects
- Adult, Aged, Aged, 80 and over, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Female, Follow-Up Studies, Humans, Immunophenotyping, Lymphoma, B-Cell, Marginal Zone diagnosis, Lymphoma, B-Cell, Marginal Zone mortality, Lymphoma, B-Cell, Marginal Zone therapy, Male, Middle Aged, Neoplasm Grading, Neoplasm Staging, Prognosis, Risk Factors, Splenic Neoplasms diagnosis, Splenic Neoplasms mortality, Splenic Neoplasms therapy, Treatment Outcome, Lymphoma, B-Cell, Marginal Zone surgery, Splenectomy, Splenic Neoplasms surgery
- Abstract
Splenectomy is considered as one of the first-line treatments for symptomatic patients with splenic marginal zone lymphoma (SMZL). Between 1997 and 2012, 100 hepatitis C virus-negative patients with SMZL were treated by splenectomy as first-line treatment. At 6 months, all patients but three recovered from all cytopenias. The median lymphocyte count at 6 months and 1 year was 11.51 × 10(9)/L and 6.9 × 10(9)/L, respectively. Median progression-free survival (PFS) was 8.25 years. The 5-year and 10-year overall survival (OS) rates were 84% and 67%, respectively. Histological transformation occurred in 11% of patients, and was the only parameter significantly associated with a shorter time to progression (p = 0.0001). Significant prognostic factors for OS were age (p = 0.0356) and histological transformation (p = 0.0312). In this large retrospective cohort, we confirmed that splenectomy as first-line treatment in patients with SMZL corrected cytopenias and lymphocytosis within the first year and was associated with a good PFS.
- Published
- 2014
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45. Brentuximab vedotin in heavily treated Hodgkin and anaplastic large-cell lymphoma, a single centre study on 45 patients.
- Author
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Monjanel H, Deville L, Ram-Wolff C, Venon MD, Franchi P, Benet C, de Kerviler E, Malphettes M, Thieblemont C, and Brice P
- Subjects
- Adult, Aged, Brentuximab Vedotin, Humans, Middle Aged, Recurrence, Retrospective Studies, Treatment Outcome, Young Adult, Antineoplastic Agents therapeutic use, Hodgkin Disease drug therapy, Immunoconjugates therapeutic use, Lymphoma, Large-Cell, Anaplastic drug therapy
- Published
- 2014
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46. Cephalic duodenopancreatectomy for hyperalgic duodenal Crohn's disease fistulized in the pancreatic gland.
- Author
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Guellouz S, Pariente B, Benet C, Baudry C, Lourenco N, Kraemer A, Allez M, and Gornet JM
- Abstract
Upper gastrointestinal (GI) tract involvement in adult Crohn's disease (CD) is rare and severe complications unusual. Stenosis has been reported, but gastroduodenal fistulae are seldom detected during surgery and most of the fistulae are cologastric or ileogastric. In complicated gastroduodenal CD, medical treatments are often effective and surgery is only considered in exceptional cases. We here report the unusual case of a 23-year-old patient with upper GI CD presenting a hyperalgic giant ulcer of the bulb fistulized in the pancreatic gland. The failure of steroids and two lines of combined treatment led us to a salvage surgical option. Abdominal exploration showed a plate stomach with an inflammatory bulboduodenal block. Cephalic duodenopancreatectomy and cholecystectomy were performed; histological analysis reported large fissuring pylorus ulceration with micro abscesses reaching the pancreas and the presence of non-caseating granulomas. Six months after the surgery, the patient had stopped antalgic treatment and did not have residual abdominal pain. He had gained 11 kg in weight and had no diarrhea with pancreatic enzymes. To our knowledge, we report the first case of an upper GI and fistulizing CD patient heavily treated with steroids and combined immunosuppressant agents requiring salvage cephalic duodenopancreatectomy.
- Published
- 2014
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47. Bemiparin versus unfractionated heparin as bridging therapy in the perioperative management of patients on vitamin K antagonists: the BERTA study.
- Author
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Santamaría A, Ugarriza A, Muñoz C, De Diego I, López-Chulia F, Benet C, Martínez-González J, Gómez N, Pina E, Ortín X, Marco P, Roncalés FJ, and Fontcuberta J
- Subjects
- Aged, Aged, 80 and over, Female, Humans, Male, Perioperative Care, Treatment Outcome, Anticoagulants therapeutic use, Heparin therapeutic use, Heparin, Low-Molecular-Weight therapeutic use, Vitamin K antagonists & inhibitors
- Abstract
Background and Objective: The management of patients on vitamin K antagonist therapy who require an invasive procedure is problematic. A randomised, controlled, double-blind clinical trial was designed to compare the efficacy and safety of bemiparin, a low molecular weight heparin (LMWH), with unfractionated heparin (UFH) as bridging therapy: the BERTA (BEmiparin Randomised Trial on bridging Anticoagulants) study., Methods: Two hundred and six patients on long-term oral anticoagulation therapy (OAT) requiring an invasive procedure were randomized to receive bridging therapy with bemiparin + matching placebo or UFH. OAT was resumed on day 1. The study medication was continued for 5-6 days after the procedure. The primary efficacy endpoint was the combined incidence of arterial and venous thromboembolic events. The primary safety endpoint was the incidence of major bleeding within 10 days after the invasive procedure., Results: There were no thromboembolic events in the bemiparin group, but two events (2.2 %) occurred in the UFH group. No major bleeding occurred in either group, but minor bleeding occurred in four patients (4.3 %) and six patients (6.1 %) in the bemiparin and UHF groups, respectively. No deaths and no cases of severe thrombocytopenia occurred during the whole study period., Conclusion: Despite its small size, the BERTA study is the first randomised, double-blind clinical trial comparing UFH with a fixed high-risk thromboprophylactic dose of an LMWH as bridging therapy. There were no thromboembolic events and fewer bleeding episodes in the bemiparin group than in the UFH group, hence we suggest that bemiparin is at least as safe as UFH as bridging therapy.
- Published
- 2013
- Full Text
- View/download PDF
48. Pegylated liposomal doxorubicin: an efficient treatment in patients with Hodgkin lymphoma relapsing after high dose therapy and stem cell transplation.
- Author
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Clozel T, Deau B, Benet C, Franchi P, Robin M, Madelaine I, Thieblemont C, de Kerviler E, Brière J, and Brice P
- Subjects
- Adolescent, Adult, Doxorubicin therapeutic use, Female, Hodgkin Disease pathology, Hodgkin Disease surgery, Humans, Male, Middle Aged, Neoplasm Staging, Polyethylene Glycols therapeutic use, Recurrence, Retrospective Studies, Stem Cell Transplantation, Young Adult, Doxorubicin analogs & derivatives, Hodgkin Disease drug therapy
- Published
- 2013
- Full Text
- View/download PDF
49. BCL6: somatic mutations and expression in early-stage chronic lymphocytic leukemia.
- Author
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Jantus Lewintre E, Reinoso Martín C, García Ballesteros C, Pendas J, Benet Campos C, Mayans Ferrer JR, and García-Conde J
- Subjects
- Adult, Aged, Aged, 80 and over, DNA-Binding Proteins analysis, Female, Genes, Immunoglobulin, Humans, Immunoglobulin Heavy Chains genetics, Leukemia, Lymphocytic, Chronic, B-Cell diagnosis, Male, Middle Aged, Point Mutation, Polymorphism, Genetic, Prognosis, Proto-Oncogene Proteins c-bcl-6, Treatment Outcome, DNA-Binding Proteins genetics, Leukemia, Lymphocytic, Chronic, B-Cell genetics, Mutation, Predictive Value of Tests
- Abstract
BCL6 somatic mutations affect normal and tumoral post germinal center B-lymphocytes. Our objective was to analyse expression, mutations and polymorphisms in the BCL6 gene and to correlate those variables with the clinical outcome in early-stage chronic lymphocytic leukemia (CLL). CLL samples were used for characterisation of the mutational status of BCL6/ immunoglobulin variable heavy chain (IGHV) genes, and expression of BCL6 was determined by real time PCR and immunoblot. Out of 68 cases, 29% show somatic mutations on BCL6 which occur exclusively in IGHV mutated cases. They are single nucleotide substitutions located mainly in two short mutational hot spots. CLL cells express different levels of BCL6 regardless of the mutational status, the number of mutations and polymorphisms. CLL cases expressing high levels of BCL6 have significantly shorter treatment-free interval. In conclusion, in early-stage patients with CLL, we found no correlation between expression and the mutations or polymorphism in BCL6, but high levels of BCL6 can discriminate patients with a worse prognosis.
- Published
- 2009
- Full Text
- View/download PDF
50. Negative purification method for the selection of specific antibodies from polyclonal antisera.
- Author
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Benet C and Van Cutsem P
- Subjects
- Animals, Antibodies immunology, Antibody Specificity, Antigen-Antibody Reactions, Automation, Blotting, Western, Chromatography, Affinity, Collodion, Escherichia coli genetics, Filtration, Rabbits, Recombinant Fusion Proteins genetics, Recombinant Fusion Proteins isolation & purification, Solutions, Antibodies isolation & purification, Immune Sera analysis, Immunosorbent Techniques
- Abstract
We developed a protocol to remove non-specific antibodies from polyclonal antisera by adsorption on non-target antigens immobilized on nitrocellulose membranes. This "negative" purification method is simple and provides better immunoreagents than the blocking of nonspecific antibodies in solution or the enrichment of specific antibodies on nitrocellulose membranes. For routine applications, this method is quicker and cheaper than the purification protocols based on selective precipitations and affinity chromatography.
- Published
- 2002
- Full Text
- View/download PDF
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