1
|
Roger M, Artiglia L, Boucly A, Buttignol F, Agote-Arán M, van Bokhoven JA, Kröcher O, Ferri D. Correction: Improving time-resolution and sensitivity of in situ X-ray photoelectron spectroscopy of a powder catalyst by modulated excitation. Chem Sci 2023; 14:10979-10980. [PMID: 37829031 PMCID: PMC10566468 DOI: 10.1039/d3sc90184j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 10/14/2023] Open
Abstract
[This corrects the article DOI: 10.1039/D3SC01274C.].
Collapse
Affiliation(s)
- M Roger
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering Lausanne Switzerland
| | - L Artiglia
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
| | - A Boucly
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
| | - F Buttignol
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering Lausanne Switzerland
| | - M Agote-Arán
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
| | - J A van Bokhoven
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich Zurich Switzerland
| | - O Kröcher
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering Lausanne Switzerland
| | - D Ferri
- Paul Scherrer Institut Forschungsstrasse 111 CH-5232 Villigen PSI Switzerland
| |
Collapse
|
2
|
Roger M, Artiglia L, Boucly A, Buttignol F, Agote-Arán M, van Bokhoven JA, Kröcher O, Ferri D. Improving time-resolution and sensitivity of in situ X-ray photoelectron spectroscopy of a powder catalyst by modulated excitation. Chem Sci 2023; 14:7482-7491. [PMID: 37449079 PMCID: PMC10337771 DOI: 10.1039/d3sc01274c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/29/2023] [Indexed: 07/18/2023] Open
Abstract
Ambient pressure X-ray photoelectron spectroscopy (APXPS) is a powerful tool to characterize the surface structure of heterogeneous catalysts in situ. In order to improve the time resolution and the signal-to-noise (S/N) ratio of photoemission spectra, we collected consecutive APXP spectra during the periodic perturbation of a powder Pd/Al2O3 catalyst away from its equilibrium state according to the modulated excitation approach (ME). Averaging of the spectra along the alternate pulses of O2 and CO improved the S/N ratio demonstrating that the time resolution of the measurement can be limited solely to the acquisition time of one spectrum. Through phase sensitive analysis of the averaged time-resolved spectra, the formation/consumption dynamics of three oxidic species, two metal species, adsorbed CO on Pd0 as well as Pdn+ (n > 2) was followed along the gas switches. Pdn+ and 2-fold surface PdO species were recognised as most reactive to the gas switches. Our approach demonstrates that phase sensitive detection of time-resolved XPS data allows following the dynamics of reactive species at the solid-gas interface under different reaction environments with unprecedented precision.
Collapse
Affiliation(s)
- M Roger
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering CH-1015 Lausanne Switzerland
| | - L Artiglia
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
| | - A Boucly
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
| | - F Buttignol
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering CH-1015 Lausanne Switzerland
| | - M Agote-Arán
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
| | - J A van Bokhoven
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich 8093 Zurich Switzerland
| | - O Kröcher
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering CH-1015 Lausanne Switzerland
| | - D Ferri
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
| |
Collapse
|
3
|
Lachkar S, Roger M, Vergnon JM, Crutu A, Febvre M, Mehdaoui A, Gervais R, Geriniere L, Arbib F, Dayen C, Trosini-Desert V, Perrin J, Mispelaere D, Thiberville L, Guisier F, Salaun M. Endoscopic resection of tracheal and bronchial granular cell tumours: A national multicentre retrospective study. Respirology 2023. [PMID: 37301541 DOI: 10.1111/resp.14532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Affiliation(s)
- Samy Lachkar
- Department of Pneumology, CHU Rouen, Rouen, France
| | - Maxime Roger
- Department of Pneumology, CHU Rouen, Rouen, France
| | - Jean-Michel Vergnon
- Department of Respiratory Care, St Etienne University Hospital, St Etienne, France
| | - Adrian Crutu
- Department of Thoracic and Vascular Surgery and Heart-Lung Transplantation, Marie Lannelongue Hospital, Le Plessis Robinson, France
| | - Michel Febvre
- Pulmonology Department, Hôpital Tenon, AP-HP, Paris, France
| | - Anas Mehdaoui
- Department of Pulmonology, Evreux Hospital, Evreux, France
| | - Radj Gervais
- Department of Oncology, François Baclesse Center, Caen, France
| | - Laurence Geriniere
- Department of Pneumology, Centre Hospitalier Lyon-Sud, HCL, Lyon, France
| | - Francois Arbib
- Department of Respiratory Medicine, University Hospital of Grenoble Alpes, Grenoble, France
| | - Charles Dayen
- Respiratory Medicine Department, Hôpital de Saint-Quentin, Saint-Quentin, France
| | - Valery Trosini-Desert
- Department of Respiratory and Intensive Care Medicine, Salpêtrière Hospital, Paris, France
| | - Julie Perrin
- Pneumology, Groupe Hospitalier UNEOS, Metz, France
| | | | - Luc Thiberville
- Department of Pneumology and Inserm CIC-CRB 1404, LITIS Lab QuantIF team EA4108, University Rouen Normandie, CHU Rouen, Rouen, France
| | - Florian Guisier
- Department of Pneumology and Inserm CIC-CRB 1404, LITIS Lab QuantIF team EA4108, University Rouen Normandie, CHU Rouen, Rouen, France
| | - Mathieu Salaun
- Department of Pneumology and Inserm CIC-CRB 1404, LITIS Lab QuantIF team EA4108, University Rouen Normandie, CHU Rouen, Rouen, France
| |
Collapse
|
4
|
Roger M, Bretonnière Y, Trolez Y, Vacher A, Arbouch I, Cornil J, Félix G, De Winter J, Richeter S, Clément S, Gerbier P. Synthesis and Characterization of Tetraphenylethene AIEgen-Based Push-Pull Chromophores for Photothermal Applications: Could the Cycloaddition-Retroelectrocyclization Click Reaction Make Any Molecule Photothermally Active? Int J Mol Sci 2023; 24:ijms24108715. [PMID: 37240061 DOI: 10.3390/ijms24108715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Three new tetraphenylethene (TPE) push-pull chromophores exhibiting strong intramolecular charge transfer (ICT) are described. They were obtained via [2 + 2] cycloaddition-retroelectrocyclization (CA-RE) click reactions on an electron-rich alkyne-tetrafunctionalized TPE (TPE-alkyne) using both 1,1,2,2-tetracyanoethene (TCNE), 7,7,8,8-tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) as electron-deficient alkenes. Only the starting TPE-alkyne displayed significant AIE behavior, whereas for TPE-TCNE, a faint effect was observed, and for TPE-TCNQ and TPE-F4-TCNQ, no fluorescence was observed in any conditions. The main ICT bands that dominate the UV-Visible absorption spectra underwent a pronounced red-shift beyond the near-infrared (NIR) region for TPE-F4-TCNQ. Based on TD-DFT calculations, it was shown that the ICT character shown by the compounds exclusively originated from the clicked moieties independently of the nature of the central molecular platform. Photothermal (PT) studies conducted on both TPE-TCNQ and TPE-F4-TCNQ in the solid state revealed excellent properties, especially for TPE-F4-TCNQ. These results indicated that CA-RE reaction of TCNQ or F4-TCNQ with donor-substituted are promising candidates for PT applications.
Collapse
Affiliation(s)
- Maxime Roger
- ICGM, CNRS UMR 5253, ENSCM, University of Montpellier, 34293 Montpellier, France
| | - Yann Bretonnière
- ENS de Lyon, CNRS UMR 5182, Laboratoire de Chimie, University of Lyon, 69364 Lyon, France
| | - Yann Trolez
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, University of Rennes, 35065 Rennes, France
| | - Antoine Vacher
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, University of Rennes, 35065 Rennes, France
| | - Imane Arbouch
- Laboratory for Chemistry of Novel Materials, University of Mons-UMONS, 7000 Mons, Belgium
| | - Jérôme Cornil
- Laboratory for Chemistry of Novel Materials, University of Mons-UMONS, 7000 Mons, Belgium
| | - Gautier Félix
- ICGM, CNRS UMR 5253, ENSCM, University of Montpellier, 34293 Montpellier, France
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs), University of Mons-UMONS, 7000 Mons, Belgium
| | - Sébastien Richeter
- ICGM, CNRS UMR 5253, ENSCM, University of Montpellier, 34293 Montpellier, France
| | - Sébastien Clément
- ICGM, CNRS UMR 5253, ENSCM, University of Montpellier, 34293 Montpellier, France
| | - Philippe Gerbier
- ICGM, CNRS UMR 5253, ENSCM, University of Montpellier, 34293 Montpellier, France
| |
Collapse
|
5
|
Tregan JM, Amestoy JL, Bati M, Bezian JJ, Blanco S, Brunel L, Caliot C, Charon J, Cornet JF, Coustet C, d'Alençon L, Dauchet J, Dutour S, Eibner S, El Hafi M, Eymet V, Farges O, Forest V, Fournier R, Galtier M, Gattepaille V, Gautrais J, He Z, Hourdin F, Ibarrart L, Joly JL, Lapeyre P, Lavieille P, Lecureux MH, Lluc J, Miscevic M, Mourtaday N, Nyffenegger-Péré Y, Pelissier L, Penazzi L, Piaud B, Rodrigues-Viguier C, Roques G, Roger M, Saez T, Terrée G, Villefranque N, Vourc'h T, Yaacoub D. Coupling radiative, conductive and convective heat-transfers in a single Monte Carlo algorithm: A general theoretical framework for linear situations. PLoS One 2023; 18:e0283681. [PMID: 37023098 PMCID: PMC10079137 DOI: 10.1371/journal.pone.0283681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/14/2023] [Indexed: 04/07/2023] Open
Abstract
It was recently shown that radiation, conduction and convection can be combined within a single Monte Carlo algorithm and that such an algorithm immediately benefits from state-of-the-art computer-graphics advances when dealing with complex geometries. The theoretical foundations that make this coupling possible are fully exposed for the first time, supporting the intuitive pictures of continuous thermal paths that run through the different physics at work. First, the theoretical frameworks of propagators and Green's functions are used to demonstrate that a coupled model involving different physical phenomena can be probabilized. Second, they are extended and made operational using the Feynman-Kac theory and stochastic processes. Finally, the theoretical framework is supported by a new proposal for an approximation of coupled Brownian trajectories compatible with the algorithmic design required by ray-tracing acceleration techniques in highly refined geometry.
Collapse
Affiliation(s)
- Jean Marc Tregan
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Jean Luc Amestoy
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Megane Bati
- IRIT, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Jean-Jacques Bezian
- Université de Toulouse, Mines Albi, UMR 5302 - Centre RAPSODEE, Campus Jarlard, Albi, CT, France
| | - Stéphane Blanco
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | | | - Cyril Caliot
- CNRS, UPPA, E2S, LMAP, 1 Allée du Parc Montaury, Anglet, France
| | - Julien Charon
- ESTACA West Campus, Rue Georges Charpak, Laval, France
| | - Jean-Francois Cornet
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | | | - Louis d'Alençon
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
- LMD/IPSL, Sorbonne Université, CNRS, École Polytechnique, ENS, Paris, France
| | - Jeremi Dauchet
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Sebastien Dutour
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Simon Eibner
- Université de Toulouse, Mines Albi, UMR 5302 - Centre RAPSODEE, Campus Jarlard, Albi, CT, France
| | - Mouna El Hafi
- Université de Toulouse, Mines Albi, UMR 5302 - Centre RAPSODEE, Campus Jarlard, Albi, CT, France
| | | | - Olivier Farges
- Université de Lorraine, CNRS, LEMTA, Vandœuvre-lès-Nancy, France
| | | | - Richard Fournier
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Mathieu Galtier
- Univ. Lyon, CNRS, INSA-Lyon, Université Claude Bernard Lyon 1, CETHIL UMR5008, Villeurbanne, France
| | - Victor Gattepaille
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Jacques Gautrais
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
- CRCA, CBI, Université de Toulouse, CNRS, Toulouse, France
| | - Zili He
- Université de Toulouse, Mines Albi, UMR 5302 - Centre RAPSODEE, Campus Jarlard, Albi, CT, France
| | - Frédéric Hourdin
- LMD/IPSL, Sorbonne Université, CNRS, École Polytechnique, ENS, Paris, France
| | | | - Jean-Louis Joly
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Paule Lapeyre
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo ON, Canada
| | - Pascal Lavieille
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | | | - Jacques Lluc
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Marc Miscevic
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Nada Mourtaday
- Inspe TOP, UMR EFTS, Université de Toulouse, Toulouse, France
| | | | | | - Lea Penazzi
- Université de Lorraine, CNRS, LEMTA, Vandœuvre-lès-Nancy, France
| | | | | | - Gisele Roques
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Maxime Roger
- Univ. Lyon, CNRS, INSA-Lyon, Université Claude Bernard Lyon 1, CETHIL UMR5008, Villeurbanne, France
| | - Thomas Saez
- LTZ Electronique, Saint Laurent du Var, France
| | - Guillaume Terrée
- Univ. Lyon, CNRS, INSA-Lyon, Université Claude Bernard Lyon 1, CETHIL UMR5008, Villeurbanne, France
| | - Najda Villefranque
- Centre National de Recherches Météorologiques, UMR 3589 CNRS, Météo France, Toulouse, France
| | - Thomas Vourc'h
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Daniel Yaacoub
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| |
Collapse
|
6
|
Merabti A, Roger M, Nguyen C, Nocentini A, Gerbier P, Richeter S, Gary‐Bobo M, Supuran CT, Clément S, Winum J. Carbonic Anhydrase Inhibitors Featuring a Porphyrin Scaffold: Synthesis, Optical and Biological Properties. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Amina Merabti
- IBMM Univ Montpellier CNRS ENSCM Montpellier France
- ICGM Univ Montpellier CNRS ENSCM Montpellier France
| | - Maxime Roger
- ICGM Univ Montpellier CNRS ENSCM Montpellier France
| | | | - Alessio Nocentini
- Neurofarba Department Sezione Di Chimica Farmaceutica E Nutraceutica Università Degli Studi Di Firenze Via U. Schiff 6 50019, Sesto Fiorentino Firenze Italy
| | | | | | | | - Claudiu T. Supuran
- Neurofarba Department Sezione Di Chimica Farmaceutica E Nutraceutica Università Degli Studi Di Firenze Via U. Schiff 6 50019, Sesto Fiorentino Firenze Italy
| | | | | |
Collapse
|
7
|
Lachkar S, Gervereau D, Lanquetuit M, Thiberville L, Pradier HM, Roger M, Bota S, Guisier F, Salaün M. Hypnosis associated with 3D immersive virtual reality technology during bronchoscopy under local anesthesia. J Thorac Dis 2022; 14:3205-3210. [PMID: 36245621 PMCID: PMC9562512 DOI: 10.21037/jtd-22-461] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/11/2022] [Indexed: 12/02/2022]
Abstract
Background Patients undergoing flexible bronchoscopy under local anesthesia usually experience anxiety before and during the procedure. Different non-pharmacological techniques, including music and hypnosis, are used to distract patients’ attention, and to reduce anxiety. The new technique “virtual reality hypnosis (VRH)”, defined as a hypnotic induction suggestion delivered by personalized virtual reality software, can generate a simulation of a lifelike environment. No study has described the use of VRH during bronchoscopy. The objective is to investigate the anxiety reducing effect and the satisfaction of patients, physicians, and nurses using VRH during bronchoscopy. Methods VRH was proposed to all patients who experienced anxiety before undergoing flexible bronchoscopy under local anesthesia. Local anesthesia was performed using 5% lidocaine spray only. No sedation was used. After the procedure, patients, physicians and nurses filled a standardized satisfaction form. Results Twenty consecutive patients who reported pre-procedure anxiety were included. The sex ratio was 16 women/4 men, the median age was 65 years. Eight patients (40%) had undergone a previous bronchoscopy under local anesthesia. The median duration of the procedure was 10 minutes, and all procedures were completed. The median level of anxiety of patients decreased from 9/10 before the procedure to 4/10 during the procedure. The median satisfaction rate regarding the use of VRH was 10/10. All patients agreed to use VRH again in case of a new bronchoscopy procedure. Conclusions This preliminary report has shown that VRH was useful to reduce patients’ anxiety during bronchoscopy under local anesthesia. VRH was easily implemented in the routine practice.
Collapse
Affiliation(s)
- Samy Lachkar
- Department of Pneumology, CHU Rouen, Rouen, France
| | | | | | | | | | - Maxime Roger
- Department of Pneumology, CHU Rouen, Rouen, France
| | - Suzanna Bota
- Department of Pneumology, CHU Rouen, Rouen, France
| | - Florian Guisier
- Department of Pneumology, LITIS Lab QuantIF Team EA4108, UNIROUEN, Normandie University, CHU Rouen, Rouen, France
- Inserm CIC-CRB 1404, Rouen, France
| | - Mathieu Salaün
- Department of Pneumology, LITIS Lab QuantIF Team EA4108, UNIROUEN, Normandie University, CHU Rouen, Rouen, France
- Inserm CIC-CRB 1404, Rouen, France
| |
Collapse
|
8
|
Lyu G, Southern TJF, Charles BL, Roger M, Gerbier P, Clément S, Evans RC. Aggregation-induced emission from silole-based lumophores embedded in organic-inorganic hybrid hosts. J Mater Chem C Mater 2021; 9:13914-13925. [PMID: 34745631 PMCID: PMC8515938 DOI: 10.1039/d1tc02794h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/05/2021] [Indexed: 05/29/2023]
Abstract
Aggregation-induced emitters - or AIEgens - are often symbolised by their photoluminescence enhancement as a result of aggregation in a poor solvent. However, for some applications, it is preferable for the AIE response to be induced in the solid-state. Here, the ability of an organic-inorganic hybrid polymer host to induce the AIE response from embedded silole-based lumophores has been explored. We have focussed on understanding how the incorporation method controls the extent of lumophore aggregation and thus the associated photophysical properties. To achieve this, two sample concentration series have been prepared, based on either the parent AIEgen 1,1-dimethyl-2,3,4,5-tetraphenylsilole (DMTPS) or the silylated analogue (DMTPS-Sil), which were physically doped or covalently grafted, respectively, to dU(600) - a member of the ureasil family of poly(oxyalkylene)/siloxane hybrids. Steady-state and time-resolved photoluminescence measurements, coupled with confocal microscopy studies, revealed that covalent grafting leads to improved dispersibility of the AIEgen, reduced scattering losses, increased photoluminescence quantum yields (up to ca. 40%) and improved chemical stability. Moreover, the ureasil also functions as a photoactive host that undergoes excitation energy transfer to the embedded DMTPS-Sil with an efficiency of almost 70%. This study highlights the potential for designing complex photoluminescent hybrid polymers exhibiting an ehanced AIE response for solid-state optical applications.
Collapse
Affiliation(s)
- Guanpeng Lyu
- Department of Material Science and Metallurgy, University of Cambridge 27 Charles Babbage Road Cambridge CB3 0FS UK
| | - Thomas J F Southern
- Department of Material Science and Metallurgy, University of Cambridge 27 Charles Babbage Road Cambridge CB3 0FS UK
| | - Bethan L Charles
- Department of Material Science and Metallurgy, University of Cambridge 27 Charles Babbage Road Cambridge CB3 0FS UK
| | - Maxime Roger
- ICGM, Univ. Montpellier, CNRS, ENSCM Montpellier France
| | | | | | - Rachel C Evans
- Department of Material Science and Metallurgy, University of Cambridge 27 Charles Babbage Road Cambridge CB3 0FS UK
| |
Collapse
|
9
|
Younes N, Delaunay AL, Roger M, Serra P, Hirot F, Urbain F, Godart N, Speranza M, Passerieux C, Roux P. Evaluating the effectiveness of a single-day simulation-based program in psychiatry for medical students: a controlled study. BMC Med Educ 2021; 21:348. [PMID: 34134692 PMCID: PMC8207590 DOI: 10.1186/s12909-021-02708-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/29/2021] [Indexed: 06/03/2023]
Abstract
BACKGROUND Training in psychiatry requires specific knowledge, attitudes, and skills that are obtainable by simulation, of which the use is only recent and still needs further development. Evidence is accumulating on its effectiveness but requires further validation for medical students. We aimed to evaluate the effectiveness of a single-day optional teaching program in psychiatry by simulation for medical students and validate a scale measuring Confidence in Psychiatric Clinical Skills (CPCQ), as part of the assessment. METHODS This was a controlled study in a French University that compared (using paired-sample Student t-tests) knowledge and attitudes (university grades and CPCQ scores) before, just after teaching with simulated patients, and 2 months later. Satisfaction with the program (including the quality of the debriefing) was also investigated. The CPCQ scale was validated by assessing the factor structure, internal consistency, and test-retest reliability. Finally, a comparison was run with a control group who received the usual psychiatric instruction using covariance analyses. RESULTS Twenty-four medical students were included in the simulation group and 76 in the control group. Just after the simulation, knowledge and attitudes increased significantly in the simulation group. Satisfaction with the training and debriefing was very high. The CPCQ scale showed good psychometric properties: a single-factor structure, acceptable internal consistency (α = 0.73 [0.65-0.85]), and good test-retest reliability (ICC = 0.71 [0.35-0.88]). Two months after the simulation, knowledge and attitudes were significantly higher in the simulation group than the control group, despite a lack of difference in knowledge before the simulation. CONCLUSIONS Adding a simulation program in psychiatry to the usual teaching improved the knowledge and confidence of medical students. The CPCQ scale could be used for the evaluation of educational programs.
Collapse
Affiliation(s)
- Nadia Younes
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France.
- Centre Hospitalier Versailles, Service Hospitalo-Universitaire de Psychiatrie de l'Adulte et d'Addictologie, 177 Rue de Versailles, 78157, Le Chesnay, Cedex, France.
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France.
| | - Anne Laure Delaunay
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
- Centre Hospitalier Versailles, Service Hospitalo-Universitaire de Psychiatre de l'Enfant et de l'Adolescent, F-78157, Le Chesnay, France
| | - M Roger
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Centre Hospitalier Versailles, Service Hospitalo-Universitaire de Psychiatrie de l'Adulte et d'Addictologie, 177 Rue de Versailles, 78157, Le Chesnay, Cedex, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
| | - Pierre Serra
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Centre Hospitalier Versailles, Service Hospitalo-Universitaire de Psychiatrie de l'Adulte et d'Addictologie, 177 Rue de Versailles, 78157, Le Chesnay, Cedex, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
| | - France Hirot
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
- Fondation Santé des Etudiants de France (FSEF), Paris, France
| | - Frédéric Urbain
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
- Département de médecine générale, UFR des sciences de la santé Simone Veil, Université Versailles-Saint-Quentin-en-Yvelines, Paris, France
| | - Nathalie Godart
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
- Fondation Santé des Etudiants de France (FSEF), Paris, France
| | - Mario Speranza
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
- Centre Hospitalier Versailles, Service Hospitalo-Universitaire de Psychiatre de l'Enfant et de l'Adolescent, F-78157, Le Chesnay, France
| | - Christine Passerieux
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Centre Hospitalier Versailles, Service Hospitalo-Universitaire de Psychiatrie de l'Adulte et d'Addictologie, 177 Rue de Versailles, 78157, Le Chesnay, Cedex, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
| | - Paul Roux
- Université Paris Saclay, Université Versailles Saint Quentin, CESP, Team DevPsy, 94807, Villejuif, France
- Centre Hospitalier Versailles, Service Hospitalo-Universitaire de Psychiatrie de l'Adulte et d'Addictologie, 177 Rue de Versailles, 78157, Le Chesnay, Cedex, France
- Center for medical simulation of UVSQ, Université de Versailles Saint Quentin en Yvelines UFR des Sciences de la Santé Simone Veil, Montigny le Bretonneux, France
| |
Collapse
|
10
|
Billoir P, Alexandre K, Duflot T, Roger M, Miranda S, Goria O, Joly LM, Demeyere M, Feugray G, Brunel V, Etienne M, Le Cam Duchez V. Investigation of Coagulation Biomarkers to Assess Clinical Deterioration in SARS-CoV-2 Infection. Front Med (Lausanne) 2021; 8:670694. [PMID: 34150806 PMCID: PMC8211892 DOI: 10.3389/fmed.2021.670694] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/05/2021] [Indexed: 01/08/2023] Open
Abstract
Since December 2019, a pandemic caused by a new coronavirus has spread to more than 170 countries around the world. Worsening infected patients requiring intensive care unit (ICU) admission associated with 30% of mortality. A part of worsening is induced by hemostasis deregulation. The aim of this study was to investigate the association of coagulation activation in COVID-19 progression. Thirty-five of the 99 patients got clinically worse. The final model of the logistic regression analysis revealed that O2 requirement (RR = 7.27 [1.50–19.31]), monocytes below 0.2G/L (RR = 2.88 [1.67–3.19]), fibrinogen levels (RR = 1.45 [1.17–1.82] per g/L increase), prothrombin fragments 1+2 higher than 290 pM (RR = 2.39 [1.20–3.30]), and thrombin peak (RR = 1.28 [1.03–1.59] per 50 nM increase) were associated with an increased risk of clinical worsening. A fibrinogen level threshold of 5.5 g/L, a thrombin peak measurement threshold of 99 pM, and O2 requirement associated with clinical outcome in more than 80% of our cohort. In conclusion, we identified fibrinogen and thrombin peak at admission as coagulation biomarkers associated with an increased risk of ICU admission or death. This finding allows initiating steroids and triage for worsening patients. Our results should therefore be considered as exploratory and deserve confirmation.
Collapse
Affiliation(s)
- Paul Billoir
- Normandie Univ, UNIROUEN, INSERM U1096, CHU Rouen, Vascular Hemostasis Unit, Rouen, France.,F-CRIN INNOVTE, St-Étienne, France
| | - Kevin Alexandre
- Normandie Univ, UNIROUEN, EA2656, CHU Rouen, Department of Infectious Diseases, Rouen, France
| | - Thomas Duflot
- Normandie Univ, UNIROUEN, INSERM U1096, CHU Rouen, Department of Pharmacology, Rouen, France
| | - Maxime Roger
- CHU Rouen, Department of Pneumology, Rouen, France
| | - Sébastien Miranda
- F-CRIN INNOVTE, St-Étienne, France.,Normandie Univ, UNIROUEN, INSERM U1096, CHU Rouen, Department of Internal Medicine, Rouen, France
| | - Odile Goria
- CHU Rouen, Department of Gastroenterology and Hepatology, Rouen, France
| | - Luc Marie Joly
- Department of Emergency Medicine, Normandie Univ, UNIROUEN, CHU Rouen, Rouen, France
| | | | - Guillaume Feugray
- Normandie Univ, UNIROUEN, INSERM U1096, CHU Rouen, Vascular Hemostasis Unit, Rouen, France
| | - Valery Brunel
- Department of General Biochemistry, CHU Rouen, Rouen, France
| | - Manuel Etienne
- Normandie Univ, UNIROUEN, EA2656, CHU Rouen, Department of Infectious Diseases, Rouen, France
| | | |
Collapse
|
11
|
Lachkar S, Couraud S, Salaün M, Roger M, Bota S, Guisier F, Thiberville L. Self-expanding metallic Y-stent compared to silicone Y-stent for malignant lesions of the main carina: A single center retrospective study. Respir Med Res 2020; 78:100767. [PMID: 32498021 DOI: 10.1016/j.resmer.2020.100767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/04/2020] [Accepted: 05/08/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Bifurcation stents are often required in patients with malignant airway obstruction or fistulization involving the main carina. The silicone Y stent is the most used but remains challenging to place. The self-expanding metallic Y (SEM) stent appears easy to use. The objective is to report the feasibility, efficacy, and tolerance of SEM Y stent compared to silicone Y stent in patients with malignant tumors involving the main carina. PATIENTS AND METHODS This retrospective single center study was performed between May 2004 and May 2017. All patients with malignant carina involvement treated with a bronchial Y stent were included. RESULTS Forty silicone Y stents and 38 SEM Y stents were placed. Seven stenting placements failed in the silicone Y group but none in the SEM Y stent group (P=0.008). The median duration of the procedure was 80min (25-210) in the silicone Y group and.50min (25-110min) in the SEM Y group (P=0.001). There was no significant difference in terms of early or late complications between the 2 groups. Nine silicone Y stents (26.5%) and 7 SEM Y stents (18.4%) were removed (P=0.4). The median survival time following stent insertion was 171 days (Interquartile range (IQR): 53-379) in the silicone Y group and 104 days (IQR: 53-230) in the SEM Y group. CONCLUSION If silicone Y stent remains the best solution for benign obstruction, SEM Y stent seems to be an easy alternative with no difference in terms of complication or ablation for malignant lesions involving the main carina.
Collapse
Affiliation(s)
- S Lachkar
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, Rouen University Hospital, 1, rue de Germont, 76000, Rouen, France.
| | - S Couraud
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, Rouen University Hospital, 1, rue de Germont, 76000, Rouen, France
| | - M Salaün
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, Rouen University Hospital, 1, rue de Germont, 76000, Rouen, France; Normandie University, UNIROUEN, QuantIF- LITIS EA 4108, Department of Pulmonology, Rouen University Hospital, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, 76000 Rouen, France
| | - M Roger
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, Rouen University Hospital, 1, rue de Germont, 76000, Rouen, France
| | - S Bota
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, Rouen University Hospital, 1, rue de Germont, 76000, Rouen, France
| | - F Guisier
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, Rouen University Hospital, 1, rue de Germont, 76000, Rouen, France; Normandie University, UNIROUEN, QuantIF- LITIS EA 4108, Department of Pulmonology, Rouen University Hospital, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, 76000 Rouen, France
| | - L Thiberville
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, Rouen University Hospital, 1, rue de Germont, 76000, Rouen, France; Normandie University, UNIROUEN, QuantIF- LITIS EA 4108, Department of Pulmonology, Rouen University Hospital, Thoracic Oncology and Respiratory Intensive Care & CIC- CRB 1404, 76000 Rouen, France
| |
Collapse
|
12
|
Lachkar S, Guisier F, Roger M, Bota S, Lerouge D, Piton N, Thiberville L, Salaün M. A simple endoscopic method with radial endobronchial ultrasonography for low-migration rate coil-tailed fiducial marker placement. J Thorac Dis 2020; 12:1467-1474. [PMID: 32395284 PMCID: PMC7212149 DOI: 10.21037/jtd.2020.02.37] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Fiducial markers (FMs) are useful for tracking small peripheral lung nodules (PLN) before stereotactic radiotherapy, but migration over the course of treatment may result in inaccurate dosing to the tumor. To minimize FM migration, coil-tailed FMs have been designed. Our objective was to assess both the feasibility of radial endobronchial ultrasonography (r-EBUS) placement and the migration rate of coil-tailed FMs. Methods In this retrospective study, we included patients who received r-EBUS guided placement of coil-tailed FMs for PLN <25 mm from June 2015 to May 2018. We introduced the FM into the nodule with the use of bronchial brush, without fluoroscopy. Results Thirty patients had r-EBUS guided placement of a coil-tailed FM before stereotactic radiation therapy. Nodule’s median long- and short-axis diameters were 15 mm (8–25 mm) and 8 mm (5–20 mm), respectively; short diameter of 27 nodules (90%) was less than 15 mm. All nodules were reached and visualized with r-EBUS, with an ultrasound (US) signal showing a centered or tangential probe in 26 and 4 cases, respectively. No immediate complication was reported. Twenty-three patients had stereotactic radiation therapy within a median time of 29 days (14–126 days). No FM migration occurred between r-EBUS placement and radiotherapy. Pre-treatment planning and 3-month follow-up CT scans showed that all FMs stayed in direct contact with the lesions. Conclusions r-EBUS is a safe procedure for the placement of nitinol coil FMs, which have a low migration rate.
Collapse
Affiliation(s)
- Samy Lachkar
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC-CRB 1404, Rouen University Hospital, Rouen, France
| | - Florian Guisier
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC-CRB 1404, Rouen University Hospital, Rouen, France.,QuantIF-LITIS EA 4108, IRIB, Rouen University, Rouen, France
| | - Maxime Roger
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC-CRB 1404, Rouen University Hospital, Rouen, France
| | - Suzanna Bota
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC-CRB 1404, Rouen University Hospital, Rouen, France
| | - Delphine Lerouge
- Department of Oncology radiotherapy, CRLCC F. Baclesse, Caen, France
| | - Nicolas Piton
- Department of Pathology, Rouen University Hospital, Rouen, France
| | - Luc Thiberville
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC-CRB 1404, Rouen University Hospital, Rouen, France.,QuantIF-LITIS EA 4108, IRIB, Rouen University, Rouen, France
| | - Mathieu Salaün
- Department of Pulmonology, Thoracic Oncology and Respiratory Intensive Care & CIC-CRB 1404, Rouen University Hospital, Rouen, France.,QuantIF-LITIS EA 4108, IRIB, Rouen University, Rouen, France
| |
Collapse
|
13
|
Roger M, Amro K, Rault-Berthelot J, Quiot M, Van der Lee A, Poriel C, Richeter S, Clément S, Gerbier P. Synthesis, photophysical and electropolymerization properties of thiophene-substituted 2,3-diphenylbuta-1,3-dienes. NEW J CHEM 2020. [DOI: 10.1039/d0nj02382e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electropolymerizable diphenylbuta-1,3-diene derivatives with AIE or AEE properties were synthesized allowing low bandgap polymers to be obtained through electropolymerization processes.
Collapse
Affiliation(s)
| | | | | | | | - Arie Van der Lee
- Institut Européen des Membranes
- IEM – UMR 5635
- ENSCM
- CNRS
- Université de Montpellier
| | - Cyril Poriel
- Univ. Rennes
- CNRS
- ISCR-UMR CNRS 6226
- F-35000 Rennes
- France
| | | | | | | |
Collapse
|
14
|
Manson G, Maria ATJ, Poizeau F, Danlos FX, Kostine M, Brosseau S, Aspeslagh S, Du Rusquec P, Roger M, Pallix-Guyot M, Ruivard M, Dousset L, Grignou L, Psimaras D, Pluvy J, Quéré G, Grados F, Duval F, Bourdain F, Maigne G, Perrin J, Godbert B, Taifas BI, Forestier A, Voisin AL, Martin-Romano P, Baldini C, Marabelle A, Massard C, Honnorat J, Lambotte O, Michot JM. Worsening and newly diagnosed paraneoplastic syndromes following anti-PD-1 or anti-PD-L1 immunotherapies, a descriptive study. J Immunother Cancer 2019; 7:337. [PMID: 31796119 PMCID: PMC6892018 DOI: 10.1186/s40425-019-0821-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/13/2019] [Indexed: 02/07/2023] Open
Abstract
Background Paraneoplastic syndromes (PNS) are autoimmune disorders specifically associated with cancer. There are few data on anti-PD-1 or anti-PD-L1 immunotherapy in patients with a PNS. Our objective was to describe the outcome for patients with a pre-existing or newly diagnosed PNS following the initiation of anti-PD-1 or anti-PD-L1 immunotherapy. Methods We included all adult patients (aged ≥18) treated with anti-PD-1 or anti-PD-L1 immunotherapy for a solid tumor, diagnosed with a PNS, and registered in French pharmacovigilance databases. Patients were allocated to cohorts 1 and 2 if the PNS had been diagnosed before vs. after the initiation of immunotherapy, respectively. Findings Of the 1304 adult patients screened between June 27th, 2014, and January 2nd, 2019, 32 (2.45%) had a PNS and were allocated to either cohort 1 (n = 16) or cohort 2 (n = 16). The median (range) age was 64 (45–88). The tumor types were non-small-cell lung cancer (n = 15, 47%), melanoma (n = 6, 19%), renal carcinoma (n = 3, 9%), and other malignancies (n = 8, 25%). Eleven (34%) patients presented with a neurologic PNS, nine (28%) had a rheumatologic PNS, eight (25%) had a connective tissue PNS, and four (13%) had other types of PNS. The highest severity grade for the PNS was 1–2 in 10 patients (31%) and ≥ 3 in 22 patients (69%). Four patients (13%) died as a result of the progression of a neurologic PNS (encephalitis in three cases, and Lambert-Eaton syndrome in one case). Following the initiation of immunotherapy, the PNS symptoms worsened in eight (50%) of the 16 patients in cohort 1. Interpretation Our results show that PNSs tend to be worsened or revealed by anti-PD-1 or anti-PD-L1 immunotherapy. Cases of paraneoplastic encephalitis are of notable concern, in view of their severity. When initiating immunotherapy, physicians should carefully monitor patients with a pre-existing PNS.
Collapse
Affiliation(s)
- Guillaume Manson
- Département d'Innovation Thérapeutique et d'Essais Précoces, Gustave Roussy, Université Paris-Saclay, F-94805, Villejuif, France.,Department of Hematology, University Hospital of Rennes, Rennes, France
| | - Alexandre Thibault Jacques Maria
- Department of Internal Medicine and Multiorgan Diseases, Referral Center for Auto-immune Diseases, Saint-Eloi Hospital Montpellier University, Montpellier, France
| | - Florence Poizeau
- Department of Dermatology, Rennes University Hospital, Rennes, France
| | - François-Xavier Danlos
- Département d'Innovation Thérapeutique et d'Essais Précoces, Gustave Roussy, Université Paris-Saclay, F-94805, Villejuif, France
| | - Marie Kostine
- Rheumatology Department, Bordeaux University Hospital, Bordeaux, France
| | - Solenn Brosseau
- AP-HP, Hôpital Bichat-Claude Bernard, Centre Investigation Clinique 1425, Thoracic Oncology Department, University Paris-Diderot, Paris, France
| | - Sandrine Aspeslagh
- Department of Medical Oncology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Pauline Du Rusquec
- Medical Oncology Department, Institut de Cancérologie de l'Ouest, Centre René Gauducheau, Saint-Herblain, France
| | - Maxime Roger
- Department of Pulmonology and Thoracic Oncology, Rouen University Hospital, Rouen, France
| | | | - Marc Ruivard
- Internal Medicine Department, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Léa Dousset
- Dermatology Department, Bordeaux University Hospital, Bordeaux, France
| | | | - Dimitri Psimaras
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Compétence des Syndromes Neurologiques Paranéoplasiques et Encéphalites Auto-immunes, Paris, France
| | - Johan Pluvy
- AP-HP, Hôpital Bichat-Claude Bernard, Centre Investigation Clinique 1425, Thoracic Oncology Department, University Paris-Diderot, Paris, France
| | - Gilles Quéré
- Oncology Departement, Brest Hôpital Morvan Centre Hospitalier Régional Universitaire, Brest, France
| | - Franck Grados
- Amiens University Hospital, Rheumatology Department, University of Picardie - Jules Verne, Amiens, France
| | - Fanny Duval
- Neurology Department, Bordeaux University Hospital, Bordeaux, France
| | - Frederic Bourdain
- Departement de Neurologie, Centre Hospitalier de la Côte Basque, Bayonne, France
| | - Gwenola Maigne
- Department of Internal Medicine, Caen University Hospital, Caen, France
| | - Julie Perrin
- Pneumology Department, Metz Robert Schuman Hospital, Metz, France
| | - Benoit Godbert
- Pneumology Department, Metz Robert Schuman Hospital, Metz, France
| | | | | | - Anne-Laure Voisin
- Gustave Roussy, Université Paris-Saclay, Unité fonctionnelle de Pharmacovigilance, F-94805, Villejuif, France
| | - Patricia Martin-Romano
- Département d'Innovation Thérapeutique et d'Essais Précoces, Gustave Roussy, Université Paris-Saclay, F-94805, Villejuif, France
| | - Capucine Baldini
- Département d'Innovation Thérapeutique et d'Essais Précoces, Gustave Roussy, Université Paris-Saclay, F-94805, Villejuif, France
| | - Aurélien Marabelle
- Département d'Innovation Thérapeutique et d'Essais Précoces, Gustave Roussy, Université Paris-Saclay, F-94805, Villejuif, France
| | - Christophe Massard
- Département d'Innovation Thérapeutique et d'Essais Précoces, Gustave Roussy, Université Paris-Saclay, F-94805, Villejuif, France
| | - Jérôme Honnorat
- Hospices Civils de Lyon, French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, SynatAc Team, Institut NeuroMyoGène. INSERM U1217/CNRS UMR 5310, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
| | - Olivier Lambotte
- AP-HP, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin-Bicêtre, France.,Université Paris Sud, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes, INSERM U1184, Le Kremlin-Bicêtre, France.,Division d'Immunovirologie, Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay-aux- Roses, France
| | - Jean-Marie Michot
- Département d'Innovation Thérapeutique et d'Essais Précoces, Gustave Roussy, Université Paris-Saclay, F-94805, Villejuif, France.
| |
Collapse
|
15
|
Lambert T, El-Husseini K, Dantoing E, Dupuis J, Guisier F, Salaun M, Bota S, Roger M, Cuvelier A, Thiberville L, Patout M. Incidence and outcome of lung cancer in patients with chronic respiratory failure. Lung Cancer 2019. [DOI: 10.1183/13993003.congress-2019.pa3051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
16
|
Vogrig A, Fouret M, Joubert B, Picard G, Rogemond V, Pinto A, Muñiz Castrillo S, Roger M, Raimbourg J, Dayen C, Grignou L, Pallix-Guyot M, Lannoy J, Ducray F, Desestret V, Psimaras D, Honnorat J. JS1.2 Increased frequency of paraneoplastic encephalitis with anti-Ma2 antibodies in the cancer immunotherapy era. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
Given the mechanism of action of immune checkpoint inhibitors (ICIs), a possible association with the development of paraneoplastic neurological syndromes (PNS) has been hypothesized. We sought to determine if ICI treatment might trigger anti-Ma2 antibody-associated paraneoplastic neurological syndromes (Ma2-PNS).
MATERIAL AND METHODS
We performed a retrospective nationwide study of all patients with Ma2-PNS developed during ICI treatment between 2017–2018. The frequency of neuronal-antibody detection before and after ICI implementation was also analyzed.
RESULTS
Our series of patients included 5 men and 1 woman (median age, 63 years). The patients were receiving either nivolumab (n = 3), pembrolizumab (n = 2) or a combination of nivolumab and ipilimumab (n=1), for treatment of neoplasms that included lung (n=4) and kidney (n=1) cancers, and pleural mesothelioma (n=1). Median delay between ICI introduction and onset of the neurological syndrome was 4 months. Clinical syndromes included a combination of limbic encephalitis and diencephalitis (n=3), isolated limbic encephalitis (n=2) and a syndrome characterized by opthalmoplegia and head-drop (n=1). Patients with diencephalitis manifested hyperphagia, weight gain and somnolence. Post-ICI Ma2-PNS accounted for 35% of the total 17 Ma2-PNS diagnosed in our center over the 2017–2018 biennium. Eight cases had been detected in the preceding biennium 2015–2016, corresponding to a 112% increase of Ma2-PNS frequency since the implementation of ICIs in France. No other neuronal-antibody demonstrated a similar increment.
CONCLUSION
We show a clear association between ICI use and increased frequency of Ma2-PNS. Physicians need to be aware that ICIs can trigger Ma2-PNS since clinical presentation can be challenging.
Collapse
Affiliation(s)
- A Vogrig
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - M Fouret
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - B Joubert
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - G Picard
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - V Rogemond
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - A Pinto
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - S Muñiz Castrillo
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - M Roger
- Centre Hospitalier Universitaire de Rouen, Rouen, France
| | - J Raimbourg
- Institut de Cancérologie de l’Ouest René Gauducheau, St. Herblain, France
| | - C Dayen
- Centre Hospitalier de Saint-Quentin, Saint-Quentin, France
| | - L Grignou
- Hôpital de La Cavale Blanche, Brest, France
| | | | - J Lannoy
- Centre Hospitalier Universitarie de Lille, Lille, France
| | - F Ducray
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - V Desestret
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| | - D Psimaras
- Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - J Honnorat
- Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques, Lyon, France
| |
Collapse
|
17
|
Vogrig A, Fouret M, Joubert B, Picard G, Rogemond V, Pinto AL, Muñiz-Castrillo S, Roger M, Raimbourg J, Dayen C, Grignou L, Pallix-Guyot M, Lannoy J, Ducray F, Desestret V, Psimaras D, Honnorat J. Increased frequency of anti-Ma2 encephalitis associated with immune checkpoint inhibitors. Neurol Neuroimmunol Neuroinflamm 2019; 6:6/6/e604. [PMID: 31454760 PMCID: PMC6705619 DOI: 10.1212/nxi.0000000000000604] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/08/2019] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To report the induction of anti-Ma2 antibody-associated paraneoplastic neurologic syndrome (Ma2-PNS) in 6 patients after treatment with immune checkpoint inhibitors (ICIs). We also analyzed (1) patient clinical features compared with a cohort of 44 patients who developed Ma2-PNS without receiving ICI treatment and (2) the frequency of neuronal antibody detection before and after ICI implementation. METHODS Retrospective nationwide study of all patients with Ma2-PNS developed during ICI treatment between 2017 and 2018. RESULTS Our series of patients included 5 men and 1 woman (median age, 63 years). The patients were receiving nivolumab (n = 3), pembrolizumab (n = 2), or a combination of nivolumab and ipilimumab (n = 1) for treatment of neoplasms that included lung (n = 4) and kidney (n = 1) cancers and pleural mesothelioma (n = 1). Clinical syndromes comprised a combination of limbic encephalitis and diencephalitis (n = 3), isolated limbic encephalitis (n = 2), and a syndrome characterized by ophthalmoplegia and head drop (n = 1). No significant clinical difference was observed between our 6 patients and the overall cohort of Ma2-PNS cases. Post-ICI Ma2-PNS accounted for 35% of the total 17 Ma2-PNS diagnosed in our center over the 2017-2018 biennium. Eight cases had been detected in the preceding biennium 2015-2016, corresponding to a 112% increase of Ma2-PNS frequency since the implementation of ICIs in France. Despite ICI withdrawal and immunotherapy, 4/6 patients died, and the remaining 2 showed a moderate to severe disability. CONCLUSIONS We show a clear association between ICI use and increased diagnosis of Ma2-PNS. Physicians need to be aware that ICIs can trigger Ma2-PNS because clinical presentation can be challenging.
Collapse
Affiliation(s)
- Alberto Vogrig
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Marine Fouret
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Bastien Joubert
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Géraldine Picard
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Véronique Rogemond
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Anne-Laurie Pinto
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Sergio Muñiz-Castrillo
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Maxime Roger
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Judith Raimbourg
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Charles Dayen
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Laurianne Grignou
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Maud Pallix-Guyot
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Julien Lannoy
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - François Ducray
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Virginie Desestret
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Dimitri Psimaras
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Jérôme Honnorat
- From the Centre National de Référence pour les Syndromes Neurologiques Paranéoplasiques (A.V., M.F., B.J., G.P., V.R., A.-L.P., S.M.-C., F.D., V.D., J.H.), Hospices Civils de Lyon, Hôpital Neurologique; Synatac Team, NeuroMyoGene Institute, INSERM U1217/CNRS UMR5310, Lyon, France; University Claude Bernard Lyon 1, Université de Lyon; Service de Pneumologie-Oncologie Thoracique-Soins Intensifs Respiratoires (M.R.), Centre Hospitalier Universitaire de Rouen; Service d'Oncologie Médicale (J.R.), Institut de Cancérologie de l'Ouest René Gauducheau, St. Herblain; Service de Pneumologie (C.D.), Centre Hospitalier de Saint-Quentin; Service de Neurologie et Unité Neuro-Vasculaire-Hôpital de La Cavale Blanche (L.G.), Brest; Service de Neurologie et Unité Neurovasculaire (M.P.-G.), Centre Hospitalier Régional d'Orléans; Service de Neurologie-Pathologies Inflammatoires (J.L.), Centre Hospitalier Universitaire de Lille; and AP-HP (D.P.), Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin et Université Pierre et Marie Curie-Paris 6, Centre de Recherche de l'Institut du Cerveau et de la Moelle Epinière (CRICM), UMRS 975; Inserm U 975, CNRS, UMR 7225; Centre de Compétence des Syndromes Neurologiques Paraneoplasiques et Encéphalites Autoimmunes, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.
| |
Collapse
|
18
|
Kotras C, Fossépré M, Roger M, Gervais V, Richeter S, Gerbier P, Ulrich S, Surin M, Clément S. A Cationic Tetraphenylethene as a Light-Up Supramolecular Probe for DNA G-Quadruplexes. Front Chem 2019; 7:493. [PMID: 31355185 PMCID: PMC6637260 DOI: 10.3389/fchem.2019.00493] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 06/26/2019] [Indexed: 11/13/2022] Open
Abstract
Guanine-quadruplexes (G4s) are targets for anticancer therapeutics. In this context, human telomeric DNA (HT-DNA) that can fold into G4s sequences are of particular interest, and their stabilization with small molecules through a visualizable process has become a challenge. As a new type of ligand for HT-G4, we designed a tetraimidazolium tetraphenylethene (TPE-Im) as a water-soluble light-up G4 probe. We study its G4-binding properties with HT-DNA by UV-Visible absorption, circular dichroism and fluorescence spectroscopies, which provide insights into the interactions between TPE-Im and G4-DNA. Remarkably, TPE-Im shows a strong fluorescence enhancement and large shifts upon binding to G4, which is valuable for detecting G4s. The association constants for the TPE-Im/G4 complex were evaluated in different solution conditions via isothermal titration calorimetry (ITC), and its binding modes were explored by molecular modeling showing a groove-binding mechanism. The stabilization of G4 by TPE-Im has been assessed by Fluorescence Resonance Energy Transfer (FRET) melting assays, which show a strong stabilization (ΔT 1/2 around +20°C), together with a specificity toward G4 with respect to double-stranded DNA.
Collapse
Affiliation(s)
- Clément Kotras
- ICGM Institut Charles Gerhardt Montpellier, UMR 5253, CNRS, Université de Montpellier, ENSCM, Montpellier, France.,Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, University of Mons-UMONS, Mons, Belgium
| | - Mathieu Fossépré
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, University of Mons-UMONS, Mons, Belgium
| | - Maxime Roger
- ICGM Institut Charles Gerhardt Montpellier, UMR 5253, CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Virginie Gervais
- Institut de Pharmacologie et de Biologie Structurale, CNRS, IPBS, Université de Toulouse, Toulouse, France
| | - Sébastien Richeter
- ICGM Institut Charles Gerhardt Montpellier, UMR 5253, CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Philippe Gerbier
- ICGM Institut Charles Gerhardt Montpellier, UMR 5253, CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Sébastien Ulrich
- Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials, Center of Innovation and Research in Materials and Polymers, University of Mons-UMONS, Mons, Belgium
| | - Sébastien Clément
- ICGM Institut Charles Gerhardt Montpellier, UMR 5253, CNRS, Université de Montpellier, ENSCM, Montpellier, France
| |
Collapse
|
19
|
Duchâteau C, Torres E, Roger M, Julien J, Séraphin M, Valin N, Girard P. Rôle de l’infirmière au sein d’un CeGIDD : plus qu’une préleveuse ! Med Mal Infect 2019. [DOI: 10.1016/j.medmal.2019.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
20
|
Kouyaté M, Filomeno CL, Demouchy G, Mériguet G, Nakamae S, Peyre V, Roger M, Cēbers A, Depeyrot J, Dubois E, Perzynski R. Thermodiffusion of citrate-coated γ-Fe 2O 3 nanoparticles in aqueous dispersions with tuned counter-ions - anisotropy of the Soret coefficient under a magnetic field. Phys Chem Chem Phys 2019; 21:1895-1903. [PMID: 30632574 DOI: 10.1039/c8cp06858e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under a temperature gradient, the direction of thermodiffusion of charged γ-Fe2O3 nanoparticles (NPs) depends on the nature of the counter-ions present in the dispersion, resulting in either a positive or negative Soret coefficient. Various counter-ions are probed in finely tuned and well characterized dispersions of citrate-coated NPs at comparable concentrations of free ionic species. The Soret coefficient ST is measured in stationary conditions together with the mass-diffusion coefficient Dm using a forced Rayleigh scattering method. The strong interparticle repulsion, determined by SAXS, is also attested by the increase of Dm with NP volume fraction Φ. The Φ-dependence of ST is analyzed in terms of thermophoretic and thermoelectric contributions of the various ionic species. The obtained single-particle thermophoretic contribution of the NPs (the Eastman entropy of transfer ŝNP) varies linearly with the entropy of transfer of the counter-ions. This is understood in terms of electrostatic contribution and of hydration of the ionic shell surrounding the NPs. Two aqueous dispersions, respectively, with ST > 0 and with ST < 0 are then probed under an applied field H[combining right harpoon above], and an anisotropy of Dm and of ST is induced while the in-field system remains monophasic. Whatever the H[combining right harpoon above]-direction (parallel or perpendicular to the gradients and ), the Soret coefficient is modulated keeping the same sign as in zero applied field. In-field experimental determinations are well described using a mean field model of the interparticle magnetic interaction.
Collapse
Affiliation(s)
- M Kouyaté
- Sorbonne Université, CNRS, PHysico-chimie des Electrolytes et Nanosystèmes InterfaciauX, F-75005, Paris, France.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Cabreira Gomes R, Ferreira da Silva A, Kouyaté M, Demouchy G, Mériguet G, Aquino R, Dubois E, Nakamae S, Roger M, Depeyrot J, Perzynski R. Thermodiffusion of repulsive charged nanoparticles - the interplay between single-particle and thermoelectric contributions. Phys Chem Chem Phys 2018; 20:16402-16413. [PMID: 29873364 DOI: 10.1039/c8cp02558d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermodiffusion of different ferrite nanoparticles (NPs), ∼10 nm in diameter, is explored in tailor-made aqueous dispersions stabilized by electrostatic interparticle interactions. In the dispersions, electrosteric repulsion is the dominant force, which is tuned by an osmotic-stress technique, i.e. controlling of osmotic pressure Π, pH and ionic strength. It is then possible to map Π and the NPs' osmotic compressibility χ in the dispersion with a Carnahan-Starling formalism of effective hard spheres (larger than the NPs' core). The NPs are here dispersed with two different surface ionic species, either at pH ∼ 2 or 7, leading to a surface charge, either positive or negative. Their Ludwig-Soret ST coefficient together with their mass diffusion Dm coefficient are determined experimentally by forced Rayleigh scattering. All probed NPs display a thermophilic behavior (ST < 0) regardless of the ionic species used to cover the surface. We determine the NPs' Eastman entropy of transfer and the Seebeck (thermoelectric) contribution to the measured Ludwig-Soret coefficient in these ionic dispersions. The NPs' Eastman entropy of transfer ŝNP is interpreted through the electrostatic and hydration contributions of the ionic shell surrounding the NPs.
Collapse
|
22
|
Wang X, Roger M, Clément R, Lecomte S, Biaso F, Abriata LA, Mansuelle P, Mazurenko I, Giudici-Orticoni MT, Lojou E, Ilbert M. Electron transfer in an acidophilic bacterium: interaction between a diheme cytochrome and a cupredoxin. Chem Sci 2018; 9:4879-4891. [PMID: 29910941 PMCID: PMC5982212 DOI: 10.1039/c8sc01615a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 04/30/2018] [Indexed: 12/15/2022] Open
Abstract
Acidithiobacillus ferrooxidans, a chemolithoautotrophic Gram-negative bacterium, has a remarkable ability to obtain energy from ferrous iron oxidation at pH 2. Several metalloproteins have been described as being involved in this respiratory chain coupling iron oxidation with oxygen reduction. However, their properties and physiological functions remain largely unknown, preventing a clear understanding of the global mechanism. In this work, we focus on two metalloproteins of this respiratory pathway, a diheme cytochrome c4 (Cyt c4) and a green copper protein (AcoP) of unknown function. We first demonstrate the formation of a complex between these two purified proteins, which allows homogeneous intermolecular electron-transfer in solution. We then mimic the physiological interaction between the two partners by replacing one at a time with electrodes displaying different chemical functionalities. From the electrochemical behavior of individual proteins, we show that, while electron transfer on AcoP requires weak electrostatic interaction, electron transfer on Cyt c4 tolerates different charge and hydrophobicity conditions, suggesting a pivotal role of this protein in the metabolic chain. The electrochemical study of the proteins incubated together demonstrates an intermolecular electron transfer involving the protein complex, in which AcoP is reduced through the high potential heme of Cyt c4. Modelling of the electrochemical signals at different scan rates allows us to estimate the rate constant of this intermolecular electron transfer in the range of a few s-1. Possible routes for electron transfer in the acidophilic bacterium are deduced.
Collapse
Affiliation(s)
- X Wang
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - M Roger
- School of Life Sciences , University of Dundee , Dundee , DD1 5EH , Scotland , UK
| | - R Clément
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - S Lecomte
- Institute for Chemistry and Biology of Membrane and Nano-objects , Allée Geoffroy St Hilaire , 33600 Pessac , France
| | - F Biaso
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - L A Abriata
- Laboratory for Biomolecular Modeling , École Polytechnique Fédérale de Lausanne and Swiss Institute of Bioinformatics , AAB014, Station 19 , 1015 Lausanne , Switzerland
| | - P Mansuelle
- Aix Marseille Univ , CNRS , Institut de Microbiologie de la Méditerranée , FR 3479, Plate-forme Protéomique, Marseille Protéomique (MaP), B.P. 71 , 13402 Marseille Cedex 20 , France
| | - I Mazurenko
- School of Biomedical Sciences , Leeds , LS2 9JT , UK
| | - M T Giudici-Orticoni
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - E Lojou
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - M Ilbert
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| |
Collapse
|
23
|
Catroux M, Roger M, Le Moal G, Paccalin M, Roblot F. Le nombre d’éosinophiles est-il associé au pronostic d’une bactériémie chez les plus de 75 ans ? Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
24
|
Catroux M, Garcia M, Roger M, Leveque N, Roblot F. Grippe nosocomiale : réalité médicale, positionnement des soignants, vaccination. Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
25
|
Roger M, Petrov L, Catroux M, Garcia M, Rammaert B, Meurice J, Roblot F. Étude observationnelle des infections à Métapneumovirus humain chez les patients adultes suivis pour une maladie respiratoire chronique. Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
26
|
Basappa Krishnamurthy V, Coffey A, Sanjay Y, Singh J, Kong L, Fernandez Mendoza J, Vgontzas A, Bixler E, Roger M. 1005 Sleep Disturbances In Opioid Dependent Patients On Buprenorphine- Gender Differences. Sleep 2018. [DOI: 10.1093/sleep/zsy061.1004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - A Coffey
- Dept of Neural and Behavioral Sciences, Penn State University, PA
| | - Y Sanjay
- Dept of Psychiatry, Penn State University, PA
| | - J Singh
- Dept of Psychiatry, Penn State University, PA
| | - L Kong
- Dept. of Public Health Sciences, Hershey, PA
| | | | - A Vgontzas
- Sleep Research & Treatment Center, Hershey, PA
| | - E Bixler
- Sleep Research & Treatment Center, Hershey, PA
| | - M Roger
- Dept of Psychiatry, Hershey, PA
| |
Collapse
|
27
|
Gelat F, Roger M, Penverne C, Mazzad A, Rolando C, Chausset-Boissarie L. UV-mediated hydrophosphinylation of unactivated alkenes with phosphinates under batch and flow conditions. RSC Adv 2018; 8:8385-8392. [PMID: 35542039 PMCID: PMC9078595 DOI: 10.1039/c7ra12977g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/18/2018] [Indexed: 01/09/2023] Open
Abstract
A UV-mediated hydrophosphinylation of unactivated alkenes with H-phosphinates and hypophosphorous acid under radical free conditions is presented. The reaction affords selectively a large number of structurally diverse organophosphorous compounds in moderate to good yields under mild reaction conditions in the presence of an organic sensitizer as catalyst irradiated by UV-A LEDs. Furthermore, the high yielding hydrophosphinylation in continuous flow is disclosed.
Collapse
Affiliation(s)
- Fabien Gelat
- USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique and FR 2638, Institut Eugène-Michel Chevreul, Université de Lille F-59000 Lille France
| | - Maxime Roger
- USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique and FR 2638, Institut Eugène-Michel Chevreul, Université de Lille F-59000 Lille France
| | - Christophe Penverne
- USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique and FR 2638, Institut Eugène-Michel Chevreul, Université de Lille F-59000 Lille France
| | - Ahmed Mazzad
- USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique and FR 2638, Institut Eugène-Michel Chevreul, Université de Lille F-59000 Lille France
| | - Christian Rolando
- USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique and FR 2638, Institut Eugène-Michel Chevreul, Université de Lille F-59000 Lille France
| | - Laëtitia Chausset-Boissarie
- USR 3290, MSAP, Miniaturisation pour la Synthèse l'Analyse et la Protéomique and FR 2638, Institut Eugène-Michel Chevreul, Université de Lille F-59000 Lille France
| |
Collapse
|
28
|
Willis TJ, Porter DG, Voneshen DJ, Uthayakumar S, Demmel F, Gutmann MJ, Roger M, Refson K, Goff JP. Diffusion mechanism in the sodium-ion battery material sodium cobaltate. Sci Rep 2018; 8:3210. [PMID: 29453391 PMCID: PMC5816598 DOI: 10.1038/s41598-018-21354-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 01/23/2018] [Indexed: 11/30/2022] Open
Abstract
High performance batteries based on the movement of Li ions in LixCoO2 have made possible a revolution in mobile electronic technology, from laptops to mobile phones. However, the scarcity of Li and the demand for energy storage for renewables has led to intense interest in Na-ion batteries, including structurally-related NaxCoO2. Here we have determined the diffusion mechanism for Na0.8CoO2 using diffuse x-ray scattering, quasi-elastic neutron scattering and ab-initio molecular dynamics simulations, and we find that the sodium ordering provides diffusion pathways and governs the diffusion rate. Above T ~ 290 K the so-called partially disordered stripe superstructure provides channels for quasi-1D diffusion, and melting of the sodium ordering leads to 2D superionic diffusion above T ~ 370 K. We obtain quantitative agreement between our microscopic study of the hopping mechanism and bulk self-diffusion measurements. Our approach can be applied widely to other Na- or Li-ion battery materials.
Collapse
Affiliation(s)
- T J Willis
- Department of Physics, Royal Holloway, University of London, Egham, TW20 0EX, UK.,ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK
| | - D G Porter
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - D J Voneshen
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK
| | - S Uthayakumar
- Department of Physics, Royal Holloway, University of London, Egham, TW20 0EX, UK
| | - F Demmel
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK
| | - M J Gutmann
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK
| | - M Roger
- Service de Physique de l'Etat Condensé, (CNRS/MIPPU/URA 2464), DSM/DRECAM/SPEC, CEA Saclay, P.C. 135, F-91191, Gif Sur Yvette, France
| | - K Refson
- Department of Physics, Royal Holloway, University of London, Egham, TW20 0EX, UK.,ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK
| | - J P Goff
- Department of Physics, Royal Holloway, University of London, Egham, TW20 0EX, UK.
| |
Collapse
|
29
|
Faucher MC, Louvanto K, Syrjänen S, Roger M. Characterisation of the novel HLA-G null allele, HLA-G*01:21N, in Finnish individuals. HLA 2017; 91:146-147. [PMID: 29152919 DOI: 10.1111/tan.13177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 11/30/2022]
Abstract
We identified the novel HLA-G*01:21N null allele in Finnish Caucasian individuals.
Collapse
Affiliation(s)
- M-C Faucher
- Laboratoire d'immunogénétique, Centre de Recherche du Centre Hospitalier de l'Universite de Montréal (CHUM), Montreal, Canada
| | - K Louvanto
- Department of Obstetrics and Gynaecology, Helsinki University Hospital, Helsinki, Finland.,Department of Oral Pathology and Radiology, University of Turku, Turku, Finland
| | - S Syrjänen
- Department of Oral Pathology and Radiology, University of Turku, Turku, Finland.,Department of Pathology, Turku University Hospital, Turku, Finland
| | - M Roger
- Laboratoire d'immunogénétique, Centre de Recherche du Centre Hospitalier de l'Universite de Montréal (CHUM), Montreal, Canada.,Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montreal, Canada
| |
Collapse
|
30
|
Fond G, Bulzacka E, Boyer L, Llorca PM, Godin O, Brunel L, Andrianarisoa MG, Aouizerate B, Berna F, Capdevielle D, Chereau I, Denizot H, Dorey JM, Dubertret C, Dubreucq J, Faget C, Gabayet F, Le Strat Y, Micoulaud-Franchi JA, Misdrahi D, Rey R, Richieri R, Roger M, Passerieux C, Schandrin A, Urbach M, Vidalhet P, Schürhoff F, Leboyer M. Birth by cesarean section and schizophrenia: results from the multicenter FACE-SZ data-set. Eur Arch Psychiatry Clin Neurosci 2017; 267:587-594. [PMID: 27349652 DOI: 10.1007/s00406-016-0708-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 06/15/2016] [Indexed: 12/13/2022]
Abstract
Children born by cesarean section ("c-birth") are known to have different microbiota and a natural history of different disorders including allergy, asthma and overweight compared to vaginally born ("v-birth") children. C-birth is not known to increase the risk of schizophrenia (SZ), but to be associated with an earlier age at onset. To further explore possible links between c-birth and SZ, we compared clinical and biological characteristics of c-born SZ patients compared to v-born ones. Four hundred and fifty-four stable community-dwelling SZ patients (mean age = 32.4 years, 75.8 % male gender) were systematically included in the multicentre network of FondaMental Expert Center for schizophrenia. Overall, 49 patients (10.8 %) were c-born. These subjects had a mean age at schizophrenia onset of 21.9 ± 6.7 years, a mean duration of illness of 10.5 ± 8.7 years and a mean PANSS total score of 70.9 ± 18.7. None of these variables was significantly associated with c-birth. Multivariate analysis showed that c-birth remained associated with lower CRP levels (aOR = 0.07; 95 % CI 0.009-0.555, p = 0.012) and lower premorbid ability (aOR = 0.945; 95 % CI 0.898-0.994, p = 0.03). No significant association between birth by C-section and, respectively, age, age at illness onset, sex, education level, psychotic and mood symptomatology, antipsychotic treatment, tobacco consumption, birth weight and mothers suffering from schizophrenia or bipolar disorder has been found. Altogether, the present results suggest that c-birth is associated with lower premorbid intellectual functioning and lower blood CRP levels in schizophrenia. Further studies should determine the mechanisms underlying this association.
Collapse
Affiliation(s)
- G Fond
- Fondation FondaMental, Créteil, France. .,Translational Psychiatry Laboratory, INSERM U955, Créteil, France. .,DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Paris Est University, Créteil, France. .,Hôpital A. Chenevier, Pole de Psychiatrie, 40 rue de Mesly, 94010, Créteil, France.
| | - E Bulzacka
- Fondation FondaMental, Créteil, France.,Translational Psychiatry Laboratory, INSERM U955, Créteil, France.,DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Paris Est University, Créteil, France
| | - L Boyer
- CHU Sainte-Marguerite, Pôle Psychiatrie Universitaire, 13274, Marseille Cedex 09, France
| | - P M Llorca
- Fondation FondaMental, Créteil, France.,CMP B, CHU, EA 7280 Faculté de Médecine, Université d'Auvergne, BP 69, 63003, Clermont-Ferrand Cedex 1, France
| | - O Godin
- Fondation FondaMental, Créteil, France.,UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, INSERM, 75013, UPMC Univ Paris 06, Sorbonne Universités, 75013, Paris, France
| | - L Brunel
- Fondation FondaMental, Créteil, France.,Translational Psychiatry Laboratory, INSERM U955, Créteil, France.,DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Paris Est University, Créteil, France
| | - M G Andrianarisoa
- Fondation FondaMental, Créteil, France.,Translational Psychiatry Laboratory, INSERM U955, Créteil, France.,DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Paris Est University, Créteil, France
| | - B Aouizerate
- Fondation FondaMental, Créteil, France.,Centre Hospitalier Charles Perrens, Université de Bordeaux, 33076, Bordeaux, France.,Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, Inserm, U862, 33000, Bordeaux, France
| | - F Berna
- Fondation FondaMental, Créteil, France.,INSERM U1114, Fédération de Médecine Translationnelle de Strasbourg, Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - D Capdevielle
- Fondation FondaMental, Créteil, France.,Service Universitaire de Psychiatrie Adulte, Hôpital la Colombière, Inserm 1061, CHRU Montpellier, Université Montpellier 1, Montpellier, France
| | - I Chereau
- Fondation FondaMental, Créteil, France.,CMP B, CHU, EA 7280 Faculté de Médecine, Université d'Auvergne, BP 69, 63003, Clermont-Ferrand Cedex 1, France
| | - H Denizot
- Fondation FondaMental, Créteil, France.,CMP B, CHU, EA 7280 Faculté de Médecine, Université d'Auvergne, BP 69, 63003, Clermont-Ferrand Cedex 1, France
| | - J M Dorey
- Fondation FondaMental, Créteil, France.,Université Claude Bernard Lyon 1/Centre Hospitalier Le Vinatier Pole Est, BP 300 39, 95 bd Pinel, 69678, Bron Cedex, France
| | - C Dubertret
- Fondation FondaMental, Créteil, France.,AP-HP, Department of Psychiatry, Faculté de Médecine, Louis Mourier Hospital, Inserm U894, Université Paris Diderot, Sorbonne Paris Cité, Colombes, France
| | - J Dubreucq
- Fondation FondaMental, Créteil, France.,Centre Référent de Réhabilitation Psychosociale, CH Alpes Isère, Grenoble, France
| | - C Faget
- Fondation FondaMental, Créteil, France.,Assistance Publique des Hôpitaux de Marseille (AP-HM), Pôle Universitaire de Psychiatrie, Marseille, France
| | - F Gabayet
- Fondation FondaMental, Créteil, France.,Centre Référent de Réhabilitation Psychosociale, CH Alpes Isère, Grenoble, France
| | - Y Le Strat
- Fondation FondaMental, Créteil, France.,AP-HP, Department of Psychiatry, Faculté de Médecine, Louis Mourier Hospital, Inserm U894, Université Paris Diderot, Sorbonne Paris Cité, Colombes, France
| | - J A Micoulaud-Franchi
- Bordeaux Sleep Clinique, Pellegrin University Hospital, USR CNRS 3413 SANPSY, Research Unit, Bordeaux University, 33000, Bordeaux, France
| | - D Misdrahi
- Fondation FondaMental, Créteil, France.,Centre Hospitalier Charles Perrens, Université de Bordeaux, 33076, Bordeaux, France.,CNRS UMR 5287-INCIA, Talence, France
| | - R Rey
- Fondation FondaMental, Créteil, France.,Université Claude Bernard Lyon 1/Centre Hospitalier Le Vinatier Pole Est, BP 300 39, 95 bd Pinel, 69678, Bron Cedex, France
| | - R Richieri
- Fondation FondaMental, Créteil, France.,Assistance Publique des Hôpitaux de Marseille (AP-HM), Pôle Universitaire de Psychiatrie, Marseille, France
| | - M Roger
- Fondation FondaMental, Créteil, France.,Translational Psychiatry Laboratory, INSERM U955, Créteil, France.,DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Paris Est University, Créteil, France
| | - C Passerieux
- Fondation FondaMental, Créteil, France.,Service de Psychiatrie d'Adulte, Centre Hospitalier de Versailles, UFR des Sciences de la Santé Simone Veil, Université Versailles Saint-Quentin en Yvelines, Versailles, France
| | - A Schandrin
- Fondation FondaMental, Créteil, France.,Service Universitaire de Psychiatrie Adulte, Hôpital la Colombière, Inserm 1061, CHRU Montpellier, Université Montpellier 1, Montpellier, France
| | - M Urbach
- Fondation FondaMental, Créteil, France.,Service de Psychiatrie d'Adulte, Centre Hospitalier de Versailles, UFR des Sciences de la Santé Simone Veil, Université Versailles Saint-Quentin en Yvelines, Versailles, France
| | - P Vidalhet
- INSERM U1114, Fédération de Médecine Translationnelle de Strasbourg, Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - F Schürhoff
- Fondation FondaMental, Créteil, France.,Translational Psychiatry Laboratory, INSERM U955, Créteil, France.,DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Paris Est University, Créteil, France
| | - M Leboyer
- Fondation FondaMental, Créteil, France.,Translational Psychiatry Laboratory, INSERM U955, Créteil, France.,DHU Pe-PSY, Pôle de Psychiatrie des Hôpitaux Universitaires H Mondor, Paris Est University, Créteil, France
| | | |
Collapse
|
31
|
Cardinale E, Bernard C, Lecollinet S, Rakotoharinome VM, Ravaomanana J, Roger M, Olive MM, Meenowa D, Jaumally MR, Melanie J, Héraud JM, Zientara S, Cêtre-Sossah C. West Nile virus infection in horses, Indian ocean. Comp Immunol Microbiol Infect Dis 2017; 53:45-49. [PMID: 28750867 DOI: 10.1016/j.cimid.2017.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/20/2017] [Accepted: 06/23/2017] [Indexed: 11/16/2022]
Abstract
The circulation of West Nile virus (WNV) in horses was investigated in the Southwest Indian ocean. In 2010, blood samples were collected from a total of 303 horses originating from Madagascar, Mauritius, Reunion and the Seychelles and tested for WNV-specific antibodies. An overall seroprevalence of 27.39% was detected in the Indian Ocean with the highest WNV antibody prevalence of 46.22% (95% CI: [37.4-55.2%]) in Madagascar. The age and origin of the horses were found to be associated with the WNV infection risk. This paper presents the first seroprevalence study investigating WN fever in horses in the Southwest Indian Ocean area and indicates a potential risk of infection for humans and animals. In order to gain a better understanding of WN transmission cycles, WNV surveillance needs to be implemented in each of the countries.
Collapse
Affiliation(s)
- E Cardinale
- CIRAD, UMR 117 ASTRE, Cyroi Platform, F-97490 Sainte Clotilde, La Réunion, France; INRA, UMR 1309 ASTRE, F-34598 Montpellier, France.
| | - C Bernard
- CIRAD, UMR 117 ASTRE, Cyroi Platform, F-97490 Sainte Clotilde, La Réunion, France; INRA, UMR 1309 ASTRE, F-34598 Montpellier, France
| | - S Lecollinet
- UMR 1161 (ANSES/INRA/ENVA), EU-RL on Equine Diseases, F- 94701 Maisons-Alfort, France
| | - V M Rakotoharinome
- Ministère auprès de la Présidence en charge de l'Agriculture, de l'Elevage, Direction des Services Vétérinaires, Ampandrianomby, Antananarivo, Madagascar
| | - J Ravaomanana
- Centre National de la Recherche Appliquée au Développement Rural (Fofifa), Département de Recherches Zootechniques et Vétérinaires, Antananarivo, Madagascar
| | - M Roger
- CIRAD, UMR 117 ASTRE, Cyroi Platform, F-97490 Sainte Clotilde, La Réunion, France; INRA, UMR 1309 ASTRE, F-34598 Montpellier, France
| | - M M Olive
- CIRAD, UMR 117 ASTRE, Cyroi Platform, F-97490 Sainte Clotilde, La Réunion, France; INRA, UMR 1309 ASTRE, F-34598 Montpellier, France
| | - D Meenowa
- Ministère des Agro-Industries, Réduit, Mauritius
| | - M R Jaumally
- Ministère des Agro-Industries, Réduit, Mauritius
| | - J Melanie
- Ministère de l'Agriculture et des ressources marines, Victoria, Seychelles
| | - J M Héraud
- Institut Pasteur de Madagascar, Unité de Virologie, BP 1274, Antananarivo 101, Madagascar
| | - S Zientara
- UMR 1161 (ANSES/INRA/ENVA), EU-RL on Equine Diseases, F- 94701 Maisons-Alfort, France
| | - C Cêtre-Sossah
- CIRAD, UMR 117 ASTRE, Cyroi Platform, F-97490 Sainte Clotilde, La Réunion, France; INRA, UMR 1309 ASTRE, F-34598 Montpellier, France
| |
Collapse
|
32
|
Roger M, Goris-Gbenou M, Guillermet A, Vial R, Cunin N, Tomas J, Bourgue L, Combe M, Lopez JG, Combe C. Évaluation prospective des coûts directs de l’énucléation prostatique par le laser HoLEP ® pendant la courbe d’apprentissage. Prog Urol 2017; 27:319-324. [DOI: 10.1016/j.purol.2017.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 02/26/2017] [Accepted: 03/11/2017] [Indexed: 10/19/2022]
|
33
|
Blieck R, Azizi MS, Mifleur A, Roger M, Persyn C, Sauthier M, Bonin H. Nickel-Catalysed Bis-Allylation of Activated Nucleophiles with Allyl Alcohol. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501556] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
34
|
Roger M, Lachkar S, Salaun M, Vergnon J, Febvre M, Baldeyrou P, Mehdaoui A, Dayen C, Dubois M, Mispelaere D, Trosini-Desert V, Thiberville L. Tumeurs à cellules granuleuses trachéo-bronchiques : étude rétrospective portant sur 30 patients en France. Rev Mal Respir 2016. [DOI: 10.1016/j.rmr.2015.10.461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
35
|
Huang BT, Roger M, Bonetti M, Salez TJ, Wiertel-Gasquet C, Dubois E, Cabreira Gomes R, Demouchy G, Mériguet G, Peyre V, Kouyaté M, Filomeno CL, Depeyrot J, Tourinho FA, Perzynski R, Nakamae S. Thermoelectricity and thermodiffusion in charged colloids. J Chem Phys 2015; 143:054902. [DOI: 10.1063/1.4927665] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- B. T. Huang
- Service de Physique de l’Etat Condensé, CEA-IRAMIS-SPEC, CNRS, UMR 3680, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - M. Roger
- Service de Physique de l’Etat Condensé, CEA-IRAMIS-SPEC, CNRS, UMR 3680, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - M. Bonetti
- Service de Physique de l’Etat Condensé, CEA-IRAMIS-SPEC, CNRS, UMR 3680, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - T. J. Salez
- Service de Physique de l’Etat Condensé, CEA-IRAMIS-SPEC, CNRS, UMR 3680, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France
- École des Ponts ParisTech, 6 et 8 Avenue Blaise Pascal, Champs-sur-Marne, F-77455 Marne-la-Vallée, France
| | - C. Wiertel-Gasquet
- Service de Physique de l’Etat Condensé, CEA-IRAMIS-SPEC, CNRS, UMR 3680, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France
| | - E. Dubois
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
| | - R. Cabreira Gomes
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
- Grupo de Fluidos Complexos, Instituto de Fisica & Instituto de Quimica, Universidade de Brasília, CP 04478, 70904-970 Brasília (DF), Brazil
| | - G. Demouchy
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
- Université Cergy-Pontoise, Département de la Physique, 33 Bd du Port, F-95011 Cergy-Pontoise Cedex, France
| | - G. Mériguet
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
| | - V. Peyre
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
| | - M. Kouyaté
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
| | - C. L. Filomeno
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
- Grupo de Fluidos Complexos, Instituto de Fisica & Instituto de Quimica, Universidade de Brasília, CP 04478, 70904-970 Brasília (DF), Brazil
| | - J. Depeyrot
- Grupo de Fluidos Complexos, Instituto de Fisica & Instituto de Quimica, Universidade de Brasília, CP 04478, 70904-970 Brasília (DF), Brazil
| | - F. A. Tourinho
- Grupo de Fluidos Complexos, Instituto de Fisica & Instituto de Quimica, Universidade de Brasília, CP 04478, 70904-970 Brasília (DF), Brazil
| | - R. Perzynski
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX, Case 51, 4 Place Jussieu, F-75005 Paris, France
| | - S. Nakamae
- Service de Physique de l’Etat Condensé, CEA-IRAMIS-SPEC, CNRS, UMR 3680, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France
| |
Collapse
|
36
|
Maquart M, Pascalis H, Abdouroihamane S, Roger M, Abdourahime F, Cardinale E, Cêtre-Sossah C. Phylogeographic Reconstructions of a Rift Valley Fever Virus Strain Reveals Transboundary Animal Movements from Eastern Continental Africa to the Union of the Comoros. Transbound Emerg Dis 2014; 63:e281-5. [PMID: 25213037 DOI: 10.1111/tbed.12267] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Indexed: 12/31/2022]
Abstract
Major explosive outbreaks of Rift Valley fever (RVF), an arthropod borne zoonotic disease, occur in humans and animals with significant mortality and economic impact across continental Africa and the Indian Ocean region (Madagascar, the Comoros archipelago). Recently, sporadic human cases have been reported in Mayotte and Grande Comore, two islands belonging to the Comoros archipelago. To identify the hypothetical source of virus introduction in an inter-epidemic or a post-epidemic period, a longitudinal survey of livestock was set up in Comorian ruminant populations, known to be susceptible hosts. The phylogeographic genomic analysis has shown that RVF virus (RVFV) detected in a zebu collected in Anjouan in August 2011 seems to be related to the last known epidemic of RVF which occurred in East Africa and Madagascar (2007-2009). This result highlights the fact that RVFV is maintained within local livestock populations and transboundary animal movements from eastern continental Africa to Indian Ocean islands likely result in RVFV crossover.
Collapse
Affiliation(s)
- M Maquart
- CIRAD, UMR CMAEE, Sainte Clotilde, La Réunion, France.,INRA, UMR 1309 CMAEE, Montpellier, France.,CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), CYROI, Sainte Clotilde, La Réunion, France
| | - H Pascalis
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), CYROI, Sainte Clotilde, La Réunion, France.,IRD, Sainte Clotilde, La Réunion, France
| | - S Abdouroihamane
- Vice-Présidence en charge de l'Agriculture, l'Elevage, la Pêche, l'Industrie, l'Energie et l'Artisanat, Moroni, Union des Comores
| | - M Roger
- CIRAD, UMR CMAEE, Sainte Clotilde, La Réunion, France.,INRA, UMR 1309 CMAEE, Montpellier, France.,CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), CYROI, Sainte Clotilde, La Réunion, France
| | - F Abdourahime
- Vice-Présidence en charge de l'Agriculture, l'Elevage, la Pêche, l'Industrie, l'Energie et l'Artisanat, Moroni, Union des Comores
| | - E Cardinale
- CIRAD, UMR CMAEE, Sainte Clotilde, La Réunion, France.,INRA, UMR 1309 CMAEE, Montpellier, France.,CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), CYROI, Sainte Clotilde, La Réunion, France
| | - C Cêtre-Sossah
- CIRAD, UMR CMAEE, Sainte Clotilde, La Réunion, France.,INRA, UMR 1309 CMAEE, Montpellier, France.,CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), CYROI, Sainte Clotilde, La Réunion, France
| |
Collapse
|
37
|
Dalbeth N, Gao A, Roger M, Doyle AJ, McQueen FM. Digital tomosynthesis for bone erosion scoring in gout: comparison with plain radiography and computed tomography. Rheumatology (Oxford) 2014; 53:1712-3. [DOI: 10.1093/rheumatology/keu250] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
38
|
Roger M, Perel-Jaillet A, Paillotin D, Marguet C, Couderc-Kohen L, Muir JF, Cuvelier A. Mise au point d’un protocole d’enquête épidémiologique autour d’un cas de tuberculose maladie survenant dans une collectivité d’enfants. Rev Mal Respir 2014. [DOI: 10.1016/j.rmr.2013.10.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
39
|
Jori F, Godfroid J, Michel AL, Potts AD, Jaumally MR, Sauzier J, Roger M. An assessment of Zoonotic and Production Limiting Pathogens in Rusa Deer (Cervus timorensis rusa) from Mauritius. Transbound Emerg Dis 2013; 61 Suppl 1:31-42. [DOI: 10.1111/tbed.12206] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Indexed: 11/28/2022]
Affiliation(s)
- F. Jori
- Integrated Animal Risk Management Unit (AGIRs); International Agricultural Research Centre for Development (CIRAD); Montpellier France
- Mammal Research Institute; Department of Zoology and Entomology; University of Pretoria; Pretoria South Africa
- Department of Animal Science and Production; Botswana College of Agriculture; Gaborone Botswana
| | - J. Godfroid
- Department of Food Safety and Infection Biology; Norwegian School of Veterinary Science; Tromsø Norway
- Department of Veterinary Tropical Diseases; Faculty of Veterinary Science; University of Pretoria; Pretoria South Africa
| | - A. L. Michel
- Department of Veterinary Tropical Diseases; Faculty of Veterinary Science; University of Pretoria; Pretoria South Africa
- Bacteriology Section; ARC-Onderstepoort Veterinary Institute; Pretoria South Africa
| | - A. D. Potts
- Bacteriology Section; ARC-Onderstepoort Veterinary Institute; Pretoria South Africa
| | | | - J. Sauzier
- Mauritius Deer Farming Cooperative Society Ltd; Curepipe Mauritius
| | - M. Roger
- Integrated Animal Risk Management Unit (AGIRs); International Agricultural Research Centre for Development (CIRAD); Montpellier France
- Centre de Recherche et de veille sur les maladies émergentes dans l'Océan Indien (CRVOI); Sainte Clotilde La Réunion
| |
Collapse
|
40
|
Voneshen DJ, Refson K, Borissenko E, Krisch M, Bosak A, Piovano A, Cemal E, Enderle M, Gutmann MJ, Hoesch M, Roger M, Gannon L, Boothroyd AT, Uthayakumar S, Porter DG, Goff JP. Suppression of thermal conductivity by rattling modes in thermoelectric sodium cobaltate. Nat Mater 2013; 12:1028-1032. [PMID: 23975057 DOI: 10.1038/nmat3739] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Accepted: 07/24/2013] [Indexed: 06/02/2023]
Abstract
The need for both high electrical conductivity and low thermal conductivity creates a design conflict for thermoelectric systems, leading to the consideration of materials with complicated crystal structures. Rattling of ions in cages results in low thermal conductivity, but understanding the mechanism through studies of the phonon dispersion using momentum-resolved spectroscopy is made difficult by the complexity of the unit cells. We have performed inelastic X-ray and neutron scattering experiments that are in remarkable agreement with our first-principles density-functional calculations of the phonon dispersion for thermoelectric Na(0.8)CoO2, which has a large-period superstructure. We have directly observed an Einstein-like rattling mode at low energy, involving large anharmonic displacements of the sodium ions inside multi-vacancy clusters. These rattling modes suppress the thermal conductivity by a factor of six compared with vacancy-free NaCoO2. Our results will guide the design of the next generation of materials for applications in solid-state refrigerators and power recovery.
Collapse
Affiliation(s)
- D J Voneshen
- Department of Physics, Royal Holloway, University of London, Egham TW20 0EX, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Plumet J, Ebrahimi A, Guitet J, Roger M. Partial recovery of skilled forelimb reaching after transplantation of fetal cortical tissue in adult rats with motor cortex lesion - anatomical and functional aspects. Restor Neurol Neurosci 2012; 6:9-27. [PMID: 21551727 DOI: 10.3233/rnn-1993-6102] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We have studied the effect of transplantation of embryonic frontal cortex on the motor deficit resulting from motor cortex lesion in the adult rat. Twenty-four 2-month-old rats were first trained in a food reaching task with right and left forelimbs. Then, at 4 months of age, the subjects were divided into two equal groups. In the lesion group, the animals sustained a lesion of the left motor cortex, whereas in the graft group the animals received a fetal cell suspension of embryonic (E16) frontal cortical tissue three days after the lesion. Postoperative reaching ability was assessed every week during eight weeks and then every two months until the age of one year. The results indicate that the deficit resulting from the lesion is bilateral but mainly affects the limb contralateral to the lesion. During the first 3 weeks of postoperative testing, both groups displayed comparable evolution of performance with contralateral forelimb, characterized by an initial large drop followed by progressive recovery. But, whereas in the lesion group performance did not increase after the fourth postoperative week, in the graft group the reaching scores further improved, without recovering, however, preoperative levels. This improvement was still observed eight months after transplantation. However, no improvement appeared using the limb ipsilateral to the transplant. An anatomical study of the volumes of transplant and/or lesion revealed that the importance of the recovery or deficit varied as a function of the sizes of the transplant and/or lesion within the rostral part of the motor cortex, approximately corresponding to the rostral forelimb area of Neafsey et al. [37]. It is therefore suggested that in adult rats, some components of the motor deficit resulting from a lesion of the motor cortex can be partially reduced by transplantation of homotopic embryonic cortex.
Collapse
Affiliation(s)
- J Plumet
- Laboratoire de Neurophysiologie, CNRS: URA 290, Université de Poitiers, France
| | | | | | | |
Collapse
|
42
|
Katinger D, Wagner A, Luque I, Crespillo S, Conejero-Lara F, Roger M, Martin C, Mouz N, Mourao S, Farsang A, Notka F, Malcolm K, Bosquet N, Le Grand R, Moog C, Cope A, Shattock R, Lewis DJ, El Habib R. Liposomal formulation of Gp41 derivate with adjuvant MPLA: vaccine design, immunogenicity in animals and safety in humans. Retrovirology 2012. [PMCID: PMC3441855 DOI: 10.1186/1742-4690-9-s2-p354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
43
|
Roger J, Faucher MC, Roger M. Identification of a new HLA-G allele, HLA-G*01:18, in a Canadian Caucasian individual. ACTA ACUST UNITED AC 2012; 80:472-3. [PMID: 22924559 DOI: 10.1111/j.1399-0039.2012.01957.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 07/24/2012] [Accepted: 08/06/2012] [Indexed: 11/28/2022]
Abstract
We identified a novel HLA-G allele with a protein-modifying mutation in a Canadian Caucasian Individual.
Collapse
Affiliation(s)
- J Roger
- Laboratoire d'immunogénétique, Centre de Recherche du Centre Hospitalier, Université de Montréal (CHUM), Montréal, Quebec, Canada
| | | | | |
Collapse
|
44
|
Veiga-Castelli LC, Castelli EC, Beauchemin K, Donadi EA, Roger M. A novel HLA-E allele, E*01:03:05, identified in two Brazilian individuals. Tissue Antigens 2012; 80:200-1. [PMID: 22594712 DOI: 10.1111/j.1399-0039.2012.01892.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here, we report a novel non-classical class I HLA-E allele found in the Brazilian population.
Collapse
Affiliation(s)
- L C Veiga-Castelli
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil.
| | | | | | | | | |
Collapse
|
45
|
Baugé J, Roger M, Vallery G. Étude exploratoire des déterminants contextuels du travail liés au suicide. ARCH MAL PROF ENVIRO 2012. [DOI: 10.1016/j.admp.2012.03.442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
46
|
Castelli EC, de Albuquerque RS, Veiga-Castelli LC, Felício LP, Beachemin K, Faucher MC, Moreau P, Donadi EA, Roger M. Identification of two new HLA-G alleles, G*01:01:03:03 and G*01:01:21, in Brazilian individuals. ACTA ACUST UNITED AC 2012; 80:70-1. [DOI: 10.1111/j.1399-0039.2012.01869.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
47
|
Veiga-Castelli LC, Castelli EC, Mendes CT, da Silva WA, Faucher MC, Beauchemin K, Roger M, Moreau P, Donadi EA. Non-classical HLA-E gene variability in Brazilians: a nearly invariable locus surrounded by the most variable genes in the human genome. Tissue Antigens 2012; 79:15-24. [PMID: 22050290 DOI: 10.1111/j.1399-0039.2011.01801.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The non-classical human leukocyte antigen (HLA) class I genes present a very low rate of variation. So far, only 10 HLA-E alleles encoding three proteins have been described, but only two are frequently found in worldwide populations. Because of its historical background, Brazilians are very suitable for population genetic studies. Therefore, 104 bone marrow donors from Brazil were evaluated for HLA-E exons 1-4. Seven variation sites were found, including two known single nucleotide polymorphisms (SNPs) at positions +424 and +756 and five new SNPs at positions +170 (intron 1), +1294 (intron 3), +1625, +1645 and +1857 (exon 4). Haplotyping analysis did show eight haplotypes, three of them known as E*01:01:01, E*01:03:01 and E*01:03:02:01 and five HLA-E new alleles that carry the new variation sites. The HLA-E*01:01:01 allele was the predominant haplotype (62.50%), followed by E*01:03:02:01 (24.52%). Selective neutrality tests have disclosed an interesting pattern of selective pressures in which balancing selection is probably shaping allele frequency distributions at an SNP at exon 3 (codon 107), sequence diversity at exon 4 and the non-coding regions is facing significant purifying pressure. Even in an admixed population such as the Brazilian one, the HLA-E locus is very conserved, presenting few polymorphic SNPs in the coding region.
Collapse
Affiliation(s)
- L C Veiga-Castelli
- Divisão de Imunologia Clínica, Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto (FMRP), Universidade de São Paulo (USP), Ribeirão Preto, SP, Brasil.
| | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Bonetti M, Nakamae S, Roger M. A simply designed cell for thermal conductivity measurements of low vapor-pressure liquids. Rev Sci Instrum 2011; 82:064906. [PMID: 21721723 DOI: 10.1063/1.3602329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have built a simply designed cell for the measurement of the thermal conductivity of liquids under steady state conditions from room temperature to about 60 °C. Thermal conductivities measured in the range between 0.2 and 0.7 Wm(-1) K(-1) show deviations of a few percent from reference thermal-conductivity data. The cell is made of two concentric parallel plates separated by a 0.44 mm thick sample. It is easily assembled and loaded with the sample for a quick and routine use.
Collapse
Affiliation(s)
- M Bonetti
- Service de Physique de l'Etat Condensé, CEA-IRAMIS-SPEC (CNRS-MPPU-URA 2464) CEA-Saclay, F-91191 Gif-sur-Yvette Cedex, France.
| | | | | |
Collapse
|
49
|
|
50
|
Lalonde RG, Thomas R, Rachlis A, Gill MJ, Roger M, Angel JB, Smith G, Higgins N, Trottier B. Successful implementation of a national HLA-B*5701 genetic testing service in Canada. ACTA ACUST UNITED AC 2009; 75:12-8. [PMID: 19843279 DOI: 10.1111/j.1399-0039.2009.01383.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abacavir is a nucleoside reverse transcriptase inhibitor (NRTI) that is used in combination antiretroviral therapy in HIV-infected patients. It is currently recommended as a preferred or an alternative NRTI in antiretroviral-naïve patients. The major toxicity of abacavir is a hypersensitivity reaction (HSR), which occurs in approximately 5% of treated patients. There is a strong association between the human leukocyte antigen (HLA)-B*5701 allele and abacavir HSR, which has allowed for rapid acceptance of genetic screening for HLA-B*5701 in clinical use. Canadian clinicians working in hospital centers with HLA typing capacity opted to launch a pilot project in 2006 to offer the screening test as standard of care to HIV-infected patients. Currently, more than 11,000 HLA-B*5701 tests have been performed, among which 6.3% are positive. Continued efforts have been made to ensure that testing is available to all HIV-infected patients to widen the patients' therapeutic options. HLA-B*5701 screening shows clinical use and preliminary data suggest cost-effectiveness.
Collapse
Affiliation(s)
- R G Lalonde
- Immunodeficiency Service, Montreal Chest Institute, McGill University Health Centre, Montreal, Quebec, Canada.
| | | | | | | | | | | | | | | | | |
Collapse
|