1
|
Jarius S, Ringelstein M, Schanda K, Ruprecht K, Korporal-Kuhnke M, Viehöver A, Hümmert MW, Schindler P, Endmayr V, Gastaldi M, Trebst C, Franciotta D, Aktas O, Höftberger R, Haas J, Komorowski L, Paul F, Reindl M, Wildemann B. Improving the sensitivity of myelin oligodendrocyte glycoprotein-antibody testing: exclusive or predominant MOG-IgG3 seropositivity-a potential diagnostic pitfall in patients with MOG-EM/MOGAD. J Neurol 2024:10.1007/s00415-024-12285-5. [PMID: 38609667 DOI: 10.1007/s00415-024-12285-5] [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: 01/25/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND Myelin oligodendrocyte glycoprotein antibody-associated encephalomyelitis (MOG-EM; also termed MOG antibody-associated disease, MOGAD) is the most important differential diagnosis of both multiple sclerosis and neuromyelitis optica spectrum disorders. A recent proposal for new diagnostic criteria for MOG-EM/MOGAD explicitly recommends the use of immunoglobulin G subclass 1 (IgG1)- or IgG crystallizable fragment (Fc) region-specific assays and allows the use of heavy-and-light-chain-(H+L) specific assays for detecting MOG-IgG. By contrast, the utility of MOG-IgG3-specific testing has not been systematically evaluated. OBJECTIVE To assess whether the use of MOG-IgG3-specific testing can improve the sensitivity of MOG-IgG testing. METHODS Re-testing of 22 patients with a definite diagnosis of MOG-EM/MOGAD and clearly positive MOG-IgG status initially but negative or equivocal results in H+L- or Fc-specific routine assays later in the disease course (i.e. patients with spontaneous or treatment-driven seroreversion). RESULTS In accordance with previous studies that had used MOG-IgG1-specific assays, IgG subclass-specific testing yielded a higher sensitivity than testing by non-subclass-specific assays. Using subclass-specific secondary antibodies, 26/27 supposedly seroreverted samples were still clearly positive for MOG-IgG, with MOG-IgG1 being the most frequently detected subclass (25/27 [93%] samples). However, also MOG-IgG3 was detected in 14/27 (52%) samples (from 12/22 [55%] patients). Most strikingly, MOG-IgG3 was the predominant subclass in 8/27 (30%) samples (from 7/22 [32%] patients), with no unequivocal MOG-IgG1 signal in 2 and only a very weak concomitant MOG-IgG1 signal in the other six samples. By contrast, no significant MOG-IgG3 reactivity was seen in 60 control samples (from 42 healthy individuals and 18 patients with MS). Of note, MOG-IgG3 was also detected in the only patient in our cohort previously diagnosed with MOG-IgA+/IgG- MOG-EM/MOGAD, a recently described new disease subvariant. MOG-IgA and MOG-IgM were negative in all other patients tested. CONCLUSIONS In some patients with MOG-EM/MOGAD, MOG-IgG is either exclusively or predominantly MOG-IgG3. Thus, the use of IgG1-specific assays might only partly overcome the current limitations of MOG-IgG testing and-just like H+L- and Fcγ-specific testing-might overlook some genuinely seropositive patients. This would have potentially significant consequences for the management of patients with MOG-EM/MOGAD. Given that IgG3 chiefly detects proteins and is a strong activator of complement and other effector mechanisms, MOG-IgG3 may be involved in the immunopathogenesis of MOG-EM/MOGAD. Studies on the frequency and dynamics as well as the clinical and therapeutic significance of MOG-IgG3 seropositivity are warranted.
Collapse
Affiliation(s)
- S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany.
| | - M Ringelstein
- Department of Neurology, Heinrich Heine University, Düsseldorf, Germany
| | - K Schanda
- Clinical Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - K Ruprecht
- Department of Neurology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - M Korporal-Kuhnke
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - A Viehöver
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - M W Hümmert
- Department of Neurology, Hannover Medical School, Hanover, Germany
| | - P Schindler
- Department of Neurology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - V Endmayr
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - M Gastaldi
- Neuroimmunology Laboratory and Neuroimmunology Research Unit, IRCCS Mondino Foundation National Neurological Institute, Pavia, Italy
| | - C Trebst
- Department of Neurology, Hannover Medical School, Hanover, Germany
| | - D Franciotta
- Neuroimmunology Laboratory and Neuroimmunology Research Unit, IRCCS Mondino Foundation National Neurological Institute, Pavia, Italy
| | - O Aktas
- Department of Neurology, Heinrich Heine University, Düsseldorf, Germany
| | - R Höftberger
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - J Haas
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - L Komorowski
- Institute of Experimental Neuroimmunology, affiliated to Euroimmun AG, Lübeck, Germany
| | - F Paul
- Experimental and Clinical Research Center, a cooperation between the Max Delbrück Center for Molecular Medicine in the Helmholtz Association and Charité - Universitätsmedizin Berlin, Berlin, Germany
- Neuroscience Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - M Reindl
- Clinical Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany.
| |
Collapse
|
2
|
Shi L, Sun Z, Richy N, Blanchard-Desce M, Mongin O, Paul F, Paul-Roth CO. Giant Star-shaped meso-substituted Fluorescent Porphyrins with Fluorenyl-containing Arms Designed for Two-photon Oxygen Photosensitization. Chemistry 2023:e202303243. [PMID: 38116883 DOI: 10.1002/chem.202303243] [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: 10/03/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/21/2023]
Abstract
In the continuation of previous studies on carbon-rich meso-tetraarylporphyrins featuring 2,7-fluorene units at their periphery, the effect of changing the peripheral dendritic arms for linear arms on their oxygen-photosensitizing ability, their fluorescence and their two-photon absorption (2PA) properties is now analyzed. Thus, starburst porphyrins possessing up to twenty conjugated fluorenyl units were isolated and studied. More precisely, a series of five new free-base porphyrins featuring fully conjugated arms incorporating an increasing number of fluorenyl groups connected via 1,2-alkenyl spacers were synthesized, along with their Zn(II) complexes. Upon excitation in the arm-centred π-π* absorption band, an efficient energy transfer takes place from the peripheral fluorenyl units to the central porphyrin core, leading to intense red-light emission and oxygen photosensitization by the latter. More interestingly, while the linear optical properties of these porphyrins were only slightly improved compared to those of their dendrimer analogues for photodynamic therapy (PDT) or fluorescence imaging, their 2PA cross-sections were much more significantly boosted, evidencing the key role played by different structures on nonlinear optical properties. Finally, by comparison with other porphyrin-based two-photon photosensitizers reported in the literature, we show that these new "semi-disconnected" starburst systems exhibit a remarkable trade-off between intrinsic 2PA, fluorescence and oxygen photosensitization.
Collapse
Affiliation(s)
- Limiao Shi
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - Zhipeng Sun
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - Nicolas Richy
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | | | - Olivier Mongin
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - Frédéric Paul
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - Christine O Paul-Roth
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| |
Collapse
|
3
|
Saguin E, Hulot LJ, Roseau JB, Metlaine A, Paul F, Nicolas F, Sipahimalani LG, Leger D, Gomez-Merino D, Chennaoui M. Translation, Cross-Cultural Adaptation and Preliminary Validation of a French Version of the Trauma-Related Nightmare Survey (TRNS-FR) in a PTSD Veteran Population. Mil Med 2023; 188:3182-3190. [PMID: 35472134 PMCID: PMC10464873 DOI: 10.1093/milmed/usac107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/29/2022] [Accepted: 04/14/2022] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION In the military population, trauma-related nightmares (TRNs) are highly associated with deployments and combat-related events. Trauma-related nightmares are also correlated with severity, treatment resistance, and chronicity of Post-Traumatic Stress Disorder (PTSD). However, to date, no specific measure of TRNs has been validated for use in the French language. This study aimed to translate and culturally adapt the English version of the Trauma-Related Nightmare Survey into French and to evaluate the psychometric properties of the translation on veterans. MATERIALS AND METHODS After the translation and cultural adaptation process, we evaluated the reliability and validity of the French version of the questionnaire (TRNS-FR) in a population of veterans suffering from PTSD with nightmare complaints (n = 56 patients for test-retest and n = 60 for internal consistency), recruited from five French military hospitals. RESULTS Analyses demonstrated that TRNS-FR has good test-retest reliability (r = 0.59) and good internal consistency with PTSD symptoms, insomnia symptoms, and subjective sleep parameters assessed at home. This questionnaire provides a rapid and comprehensive assessment of sleep disturbance and a specific description of TRNs in the population of veterans with severe PTSD. Our results allowed us to propose a valid and reliable French adaptation of the questionnaire. CONCLUSION Because sleep disturbances and TRNs require specific therapeutic management, the psychometric qualities of TRNS-FR make it a tool of choice for assessing TRNs in future clinical research settings.
Collapse
Affiliation(s)
- Emeric Saguin
- Psychiatric Department, Begin Military Teaching Hospital, Saint-Mandé 94160, France
- VIFASOM (Vigilance Fatigue Sommeil et Santé Publique) EA 7330, Université de Paris, Paris 75005, France
| | | | - Jean-Baptiste Roseau
- Pneumology and Sleep Medicine Department, Clermont-Tonnerre Military Teaching Hospital, Brest 29240, France
| | - Arnaud Metlaine
- Centre du Sommeil et de la Vigilance, Hôtel-Dieu, APHP, Paris 75004, France
| | - Frédéric Paul
- Psychiatric Department, Laveran Military Teaching Hospital, Marseille 13384, France
| | - Florian Nicolas
- Psychiatric Department, Sainte-Anne Military Teaching Hospital, Toulon 83800, France
| | | | - Damien Leger
- VIFASOM (Vigilance Fatigue Sommeil et Santé Publique) EA 7330, Université de Paris, Paris 75005, France
- Centre du Sommeil et de la Vigilance, Hôtel-Dieu, APHP, Paris 75004, France
| | - Danielle Gomez-Merino
- VIFASOM (Vigilance Fatigue Sommeil et Santé Publique) EA 7330, Université de Paris, Paris 75005, France
- French Armed Forces Biomedical Research Institute, Brétigny-sur-Orge 91220, France
| | - Mounir Chennaoui
- VIFASOM (Vigilance Fatigue Sommeil et Santé Publique) EA 7330, Université de Paris, Paris 75005, France
- French Armed Forces Biomedical Research Institute, Brétigny-sur-Orge 91220, France
| |
Collapse
|
4
|
Paul F, Pittock S, Kim H, Smith M, Rees W, Patterson K, Cree B, Bennett J. P-59 Association of B cell subsets and aquaporin-4 antibody titers with disease activity in participants in the N-MOmentum trial receiving inebilizumab treatment. Clin Neurophysiol 2023. [DOI: 10.1016/j.clinph.2023.02.076] [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: 03/08/2023]
|
5
|
Pittock S, Barnett M, Bennett J, Berthele A, de Sèze J, Levy M, Nakashima I, Oreja-Guevara C, Palace J, Paul F, Pozzilli C, Allen K, Mashhoon Y, Yountz M, Kim H. P-53 Efficacy and safety of ravulizumab in adults with anti-aquaporin-4 antibody-positive neuromyelitis optica spectrum disorder: Outcomes from the phase 3 CHAMPION-NMOSD trial. Clin Neurophysiol 2023. [DOI: 10.1016/j.clinph.2023.02.070] [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: 03/08/2023]
|
6
|
Philippe C, Bui AT, Beau M, Bloux H, Riobé F, Mongin O, Roisnel T, Cordier M, Paul F, Lemiègre L, Trolez Y. Synthesis and Photophysical Properties of 1,1,4,4-Tetracyanobutadienes Derived from Ynamides Bearing Fluorophores. Chemistry 2022; 28:e202200025. [PMID: 35199892 DOI: 10.1002/chem.202200025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 01/04/2022] [Indexed: 12/18/2022]
Abstract
1,1,4,4-Tetracyanobutadienes (TCBDs) bearing a large diversity of fluorophores were prepared following a multi-step synthesis. In a crucial last step, all compounds were obtained from the corresponding ynamides, which were particularly suitable for the formation of the TCBDs in the presence of tetracyanoethylene via a [2+2] cycloaddition/retroelectrocyclization step (CA-RE). Several fluorenyl derivatives in addition to phenanthrenyl and terphenyl ones provided ynamide-based TCBDs affording remarkable emission properties covering a large range of wavelengths. Those compounds emit both in solid state and in solution from the visible region to the NIR range, depending on the molecular structures. Quantum yields in cyclohexane reached unforeseen values for such derivatives, up to 7.8 %. A huge sensitivity to the environment of the TCBDs has also been unraveled for most of the compounds since we observed a dramatic fall of the quantum yields when changing the solvent from cyclohexane to toluene, while they are almost non-emissive in dichloromethane.
Collapse
Affiliation(s)
- Clotilde Philippe
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - Anh Thy Bui
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France.,Université Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400, Talence, France
| | - Maxime Beau
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - Hugo Bloux
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - François Riobé
- Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS UMR 5182 Laboratoire de Chimie, 46 allée d'Italie, 69364, Lyon, France
| | - Olivier Mongin
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - Thierry Roisnel
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - Marie Cordier
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - Frédéric Paul
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - Loïc Lemiègre
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| | - Yann Trolez
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR - UMR6226, 35000, Rennes, France
| |
Collapse
|
7
|
Yao D, Shi L, Sun Z, Blanchard-Desce M, Mongin O, Paul F, Paul-Roth CO. New fluorescent tetraphenylporphyrin-based dendrimers with alkene-linked fluorenyl antennae designed for oxygen sensitization. CR CHIM 2021. [DOI: 10.5802/crchim.99] [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: 11/24/2022]
|
8
|
Ripoche N, Betou M, Philippe C, Trolez Y, Mongin O, Dudek M, Pokladek Z, Matczyszyn K, Samoc M, Sahnoune H, Halet JF, Roisnel T, Toupet L, Cordier M, Moxey GJ, Humphrey MG, Paul F. Two-photon absorption properties of multipolar triarylamino/tosylamido 1,1,4,4-tetracyanobutadienes. Phys Chem Chem Phys 2021; 23:22283-22297. [PMID: 34585692 DOI: 10.1039/d1cp03346h] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of four new tetracyanobutadiene (TCBD) derivatives (1, 3c and 4b-c) incorporating tosylamido and 4-triphenylamino moieties are reported. Along with those of five closely related or differently branched TCBDs derivatives (2, 3a-b, 4c and 5), their linear and (third-order) nonlinear optical properties were investigated by electronic absorption spectroscopy and Z-scan measurements. Among these compounds, the tri-branched compounds 3c and 5 are the most active two-photon absorbers, with effective cross-sections of 275 and 350 GM at 900 nm, respectively. These properties are briefly discussed with the help of DFT calculations, focussing on structural and electronic factors, and contextualized with results obtained previously for related compounds.
Collapse
Affiliation(s)
- Nicolas Ripoche
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. .,Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia.
| | - Marie Betou
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Clotilde Philippe
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Yann Trolez
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Olivier Mongin
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Marta Dudek
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
| | - Ziemowit Pokladek
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
| | - Marek Samoc
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
| | - Hiba Sahnoune
- Département de Chimie, Faculté des Sciences, Université M'Hamed Bouguara de Boumerdes, 35000, Boumerdes, Algeria.,Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri de Tizi Ouzou, 15000, Tizi Ouzou, Algeria
| | - Jean-François Halet
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. .,CNRS-Saint-Gobain-NIMS, IRL 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Tsukuba, 305-0044, Japan.
| | - Thierry Roisnel
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Loic Toupet
- Univ Rennes, CNRS, Institut de Physique de Rennes (IPR) - UMR 6251, F-35000 Rennes, France
| | - Marie Cordier
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Graeme J Moxey
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia.
| | - Mark G Humphrey
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia.
| | - Frédéric Paul
- Univ Rennes, CNRS, ENSCR, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| |
Collapse
|
9
|
Abid S, Ben Hassine S, Sun Z, Richy N, Camerel F, Jamoussi B, Blanchard-Desce M, Mongin O, Paul F, Paul-Roth C. Impact of Changing the Core in Tetrapyrrolic Dendrimers Designed for Oxygen Sensitization: New Fluorescent Phthalocyanine-Based Dendrimers with High Two-Photon Absorption Cross-sections. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Seifallah Abid
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
- Faculté des Sciences de Bizerte, Université de Carthage, Carthage BP 77-1054, Tunisia
| | - Sarra Ben Hassine
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
- Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis 1068, Tunisie
| | - Zhipeng Sun
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
| | - Nicolas Richy
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
| | - Franck Camerel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
| | - Bassem Jamoussi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | | | - Olivier Mongin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
| | - Frédéric Paul
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
| | - Christine Paul-Roth
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000 Rennes, France
| |
Collapse
|
10
|
Arnal ME, Denis S, Uriot O, Lambert C, Holowacz S, Paul F, Kuylle S, Pereira B, Alric M, Blanquet-Diot S. Impact of oral galenic formulations of Lactobacillus salivarius on probiotic survival and interactions with microbiota in human in vitro gut models. Benef Microbes 2021; 12:75-90. [PMID: 34109893 DOI: 10.3920/bm2020.0187] [Citation(s) in RCA: 3] [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] [Indexed: 01/16/2023]
Abstract
Health benefits of probiotics in humans essentially depend on their ability to survive during gastrointestinal (GI) transit and to modulate gut microbiota. To date, there is few data on the impact of galenic formulations of probiotics on these parameters. Even if clinical studies remain the gold standard to evaluate the efficacy of galenic forms, they stay hampered by technical, ethical and cost reasons. As an alternative approach, we used two complementary in vitro models of the human gut, the TNO gastrointestinal (TIM-1) model and the Artificial Colon (ARCOL), to study the effect of three oral formulations of a Lactobacillus salivarius strain (powder, capsule and sustained-release tablet) on its viability and interactions with gut microbiota. In the TIM-1 stomach, no or low numbers of bacteria were respectively released from the capsule and tablet, confirming their gastro-resistance. The capsule was disintegrated in the jejunum on average 76 min after administration while the core of sustained-release tablet was still intact at the end of digestion. Viability in TIM-1 was significantly influenced by the galenic form with survival percentages of 0.003±0.004%, 2.8±0.6% and 17.0±1.8% (n=3) for powder, capsule and tablet, respectively. In the ARCOL, the survival of the strain tended to be higher in the post-treatment phase with the tablet compared to capsule, but gut microbiota composition and activity were not differently modulated by the two formulations. In conclusion, the sustained-release tablet emerged as the formulation that most effectively preserved viability of the tested strain during GI passage. This study highlights the usefulness of in vitro gut models for the pre-screening of probiotic pharmaceutical forms. Their use could also easily be extended to the evaluation of the effects of food matrices and age on probiotic survival and activity during GI transit.
Collapse
Affiliation(s)
- M E Arnal
- Université Clermont Auvergne, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, 28 place Henri Dunant, 63000 Clermont-Ferrand, France
| | - S Denis
- Université Clermont Auvergne, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, 28 place Henri Dunant, 63000 Clermont-Ferrand, France
| | - O Uriot
- Université Clermont Auvergne, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, 28 place Henri Dunant, 63000 Clermont-Ferrand, France
| | - C Lambert
- University Hospital Clermont-Ferrand, Biostatistics Units, 58, rue Montalembert, 63000 Clermont-Ferrand, France
| | - S Holowacz
- PiLeJe Industrie, Parc Naturopôle, Les Tiolans 03800 Saint-Bonnet de Rochefort, France
| | - F Paul
- Genibio, Le Pradas, ZI du Couserans, 09190 Lorp-Sentaraille, France
| | - S Kuylle
- Genibio, Le Pradas, ZI du Couserans, 09190 Lorp-Sentaraille, France
| | - B Pereira
- University Hospital Clermont-Ferrand, Biostatistics Units, 58, rue Montalembert, 63000 Clermont-Ferrand, France
| | - M Alric
- Université Clermont Auvergne, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, 28 place Henri Dunant, 63000 Clermont-Ferrand, France
| | - S Blanquet-Diot
- Université Clermont Auvergne, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, 28 place Henri Dunant, 63000 Clermont-Ferrand, France
| |
Collapse
|
11
|
Shugar DH, Jacquemart M, Shean D, Bhushan S, Upadhyay K, Sattar A, Schwanghart W, McBride S, de Vries MVW, Mergili M, Emmer A, Deschamps-Berger C, McDonnell M, Bhambri R, Allen S, Berthier E, Carrivick JL, Clague JJ, Dokukin M, Dunning SA, Frey H, Gascoin S, Haritashya UK, Huggel C, Kääb A, Kargel JS, Kavanaugh JL, Lacroix P, Petley D, Rupper S, Azam MF, Cook SJ, Dimri AP, Eriksson M, Farinotti D, Fiddes J, Gnyawali KR, Harrison S, Jha M, Koppes M, Kumar A, Leinss S, Majeed U, Mal S, Muhuri A, Noetzli J, Paul F, Rashid I, Sain K, Steiner J, Ugalde F, Watson CS, Westoby MJ. A massive rock and ice avalanche caused the 2021 disaster at Chamoli, Indian Himalaya. Science 2021; 373:300-306. [PMID: 34112725 DOI: 10.1126/science.abh4455] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/27/2021] [Indexed: 11/02/2022]
Abstract
On 7 February 2021, a catastrophic mass flow descended the Ronti Gad, Rishiganga, and Dhauliganga valleys in Chamoli, Uttarakhand, India, causing widespread devastation and severely damaging two hydropower projects. More than 200 people were killed or are missing. Our analysis of satellite imagery, seismic records, numerical model results, and eyewitness videos reveals that ~27 × 106 cubic meters of rock and glacier ice collapsed from the steep north face of Ronti Peak. The rock and ice avalanche rapidly transformed into an extraordinarily large and mobile debris flow that transported boulders greater than 20 meters in diameter and scoured the valley walls up to 220 meters above the valley floor. The intersection of the hazard cascade with downvalley infrastructure resulted in a disaster, which highlights key questions about adequate monitoring and sustainable development in the Himalaya as well as other remote, high-mountain environments.
Collapse
Affiliation(s)
- D H Shugar
- Water, Sediment, Hazards, and Earth-surface Dynamics (waterSHED) Lab, Department of Geoscience, University of Calgary, AB, Canada.
| | - M Jacquemart
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA.,Laboratory of Hydraulics, Hydrology, and Glaciology (VAW), ETH Zurich, Zurich, Switzerland.,Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - D Shean
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA
| | - S Bhushan
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA
| | - K Upadhyay
- Independent journalist/water policy researcher, Nainital, Uttarakhand, India
| | - A Sattar
- Department of Geography, University of Zurich, Zurich, Switzerland
| | - W Schwanghart
- Institute of Environmental Science and Geography, University of Potsdam, Potsdam, Germany
| | - S McBride
- U.S. Geological Survey, Earthquake Science Center, Moffett Field, CA, USA
| | - M Van Wyk de Vries
- Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN, USA.,St. Anthony Falls Laboratory, University of Minnesota, Minneapolis, MN, USA
| | - M Mergili
- Institute of Geography and Regional Science, University of Graz, Graz, Austria.,Institute of Applied Geology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - A Emmer
- Institute of Geography and Regional Science, University of Graz, Graz, Austria
| | - C Deschamps-Berger
- Centre d'Etudes Spatiales de la Biosphère (CESBIO), Université de Toulouse, CNES/CNRS/INRAE/IRD/UP, Toulouse, France
| | - M McDonnell
- Department of Geography, University of Utah, Salt Lake City, Utah, USA
| | - R Bhambri
- Department of Geography, South Asia Institute, Heidelberg University, Heidelberg, Germany
| | - S Allen
- Department of Geography, University of Zurich, Zurich, Switzerland.,Institute for Environmental Sciences, University of Geneva, Switzerland
| | - E Berthier
- Laboratoire d'Etudes en Géophysique et Océanographie Spatiales (LEGOS), Université de Toulouse, CNES/CNRS/IRD/UPS, Toulouse, France
| | - J L Carrivick
- School of Geography, University of Leeds, Leeds, West Yorkshire, UK.,water@leeds, University of Leeds, Leeds, West Yorkshire, UK
| | - J J Clague
- Department of Earth Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - M Dokukin
- Department of Natural Disasters, High-Mountain Geophysical Institute, Nalchik, Russia
| | - S A Dunning
- School of Geography, Politics, and Sociology, Newcastle University, Newcastle, UK
| | - H Frey
- Department of Geography, University of Zurich, Zurich, Switzerland
| | - S Gascoin
- Centre d'Etudes Spatiales de la Biosphère (CESBIO), Université de Toulouse, CNES/CNRS/INRAE/IRD/UP, Toulouse, France
| | - U K Haritashya
- Department of Geology and Environmental Geosciences, University of Dayton, Dayton, OH, USA
| | - C Huggel
- Department of Geography, University of Zurich, Zurich, Switzerland
| | - A Kääb
- Department of Geosciences, University of Oslo, Oslo, Norway
| | - J S Kargel
- Planetary Science Institute, Tucson, AZ, USA
| | - J L Kavanaugh
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada
| | - P Lacroix
- ISTerre, Université Grenoble Alpes, IRD, CNRS, Grenoble, France
| | - D Petley
- Department of Geography, The University of Sheffield, Sheffield, UK
| | - S Rupper
- Department of Geography, University of Utah, Salt Lake City, Utah, USA
| | - M F Azam
- Indian Institute of Technology Indore, Madhya Pradesh, Indore, India
| | - S J Cook
- Department of Geography and Environmental Science, University of Dundee, Dundee, UK.,United Nations Educational, Scientific and Cultural Organization (UNESCO) Centre for Water Law, Policy, and Science, University of Dundee, Dundee, UK
| | - A P Dimri
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - M Eriksson
- Stockholm International Water Institute, Stockholm, Sweden
| | - D Farinotti
- Laboratory of Hydraulics, Hydrology, and Glaciology (VAW), ETH Zurich, Zurich, Switzerland.,Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - J Fiddes
- WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
| | - K R Gnyawali
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - S Harrison
- College of Life and Environmental Sciences, University of Exeter, Penryn, UK
| | - M Jha
- Department of Mines and Geology, National Earthquake Monitoring and Research Center, Kathmandu, Nepal
| | - M Koppes
- Department of Geography, University of British Columbia, Vancouver, BC, Canada
| | - A Kumar
- Wadia Institute of Himalayan Geology, Dehradun, Uttarakhand, India
| | - S Leinss
- Institute of Environmental Engineering (IfU), ETH Zurich, 8093 Zürich, Switzerland
| | - U Majeed
- Department of Geoinformatics, University of Kashmir, Hazratbal Srinagar, Jammu and Kashmir, India
| | - S Mal
- Department of Geography, Shaheed Bhagat Singh College, University of Delhi, Delhi, India
| | - A Muhuri
- Centre d'Etudes Spatiales de la Biosphère (CESBIO), Université de Toulouse, CNES/CNRS/INRAE/IRD/UP, Toulouse, France.,Institute of Geography, Heidelberg University, Germany
| | - J Noetzli
- WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
| | - F Paul
- Department of Geography, University of Zurich, Zurich, Switzerland
| | - I Rashid
- Department of Geoinformatics, University of Kashmir, Hazratbal Srinagar, Jammu and Kashmir, India
| | - K Sain
- Wadia Institute of Himalayan Geology, Dehradun, Uttarakhand, India
| | - J Steiner
- International Centre for Integrated Mountain Development, Kathmandu, Nepal.,Department of Physical Geography, Utrecht University, Netherlands
| | - F Ugalde
- Geoestudios, San José de Maipo, Chile.,Department of Geology, University of Chile, Santiago, Chile
| | - C S Watson
- Centre for Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET), School of Earth and Environment, University of Leeds, Leeds, UK
| | - M J Westoby
- Department of Geography and Environmental Sciences, Northumbria University, Newcastle upon Tyne, UK
| |
Collapse
|
12
|
Siebert N, Duchow A, Paul F, Infante-Duarte C, Bellmann-Strobl J. Inebilizumab in AQP4-Ab-positive neuromyelitis optica spectrum disorder. Drugs Today (Barc) 2021; 57:321-336. [PMID: 34061127 DOI: 10.1358/dot.2021.57.5.3265453] [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] [Indexed: 10/21/2022]
Abstract
Until recently, the use of preventative immunotherapy in neuromyelitis optica spectrum disorders (NMOSD) was based on observational studies and clinical experiences. Meanwhile, the first drugs, among others the monoclonal antibody inebilizumab, were approved for the treatment of aquaporin-4 (AQP4) antibody-positive NMOSD. Inebilizumab binds to the CD19 antigen on B cells and leads to B-cell depletion. The first two dosages of 300 mg inebilizumab are administered intravenously at an interval of 2 weeks followed by further infusions every 6 months. In the placebo-controlled pivotal phase II/III study N-MOmentum, inebilizumab significantly prolonged the time to a first adjudicated relapse in AQP4 antibody-positive patients compared with placebo. The most frequent side effects were infusion reactions, urinary and respiratory tract infections, and arthralgia. This review presents data on clinical and preclinical pharmacology, administration, safety aspects and clinical trials of inebilizumab.
Collapse
Affiliation(s)
- N Siebert
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, NeuroCure Clinical Research Center, Berlin, Germany. .,Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - A Duchow
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, NeuroCure Clinical Research Center, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - F Paul
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, NeuroCure Clinical Research Center, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - C Infante-Duarte
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - J Bellmann-Strobl
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, NeuroCure Clinical Research Center, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
13
|
Philippe C, Bui AT, Batsongo-Boulingui S, Pokladek Z, Matczyszyn K, Mongin O, Lemiègre L, Paul F, Hamlin TA, Trolez Y. 1,1,4,4-Tetracyanobutadiene-Functionalized Anthracenes: Regioselectivity of Cycloadditions in the Synthesis of Small Near-IR Dyes. Org Lett 2021; 23:2007-2012. [PMID: 33635667 PMCID: PMC8155560 DOI: 10.1021/acs.orglett.1c00136] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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] [Indexed: 11/29/2022]
Abstract
Two small 1,1,4,4-tetracyanobutadiene-functionalized chromophores were obtained by careful leverage of the regioselectivity of the cycloaddition reaction of tetracyanoethylene with anthracene-ynamide derivatives, inducing either a [2 + 2] or a [4 + 2] Diels-Alder process. DFT calculations unraveled the mechanism of the [2 + 2] cycloaddition-retroelectrocyclization reaction sequence with ynamides and elucidated the differing mechanisms in the two substrates. The synthesized dyes presented panchromatic absorption extending into the near-IR and far-red/near-IR photoluminescence in the solid state up to 1550 nm.
Collapse
Affiliation(s)
- Clotilde Philippe
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| | - Anh Thy Bui
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| | | | - Ziemowit Pokladek
- Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
| | - Katarzyna Matczyszyn
- Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
| | - Olivier Mongin
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| | - Loïc Lemiègre
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| | - Frédéric Paul
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| | - Trevor A Hamlin
- Department of Theoretical Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), and Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Yann Trolez
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France
| |
Collapse
|
14
|
Abstract
Dysphagia is a common symptom in neurodegenerative disorders and is generally associated with increased mortality. In the clinical care setting of ataxia patients, no systematical and standardized assessment of dysphagia is employed. Its impact on patients’ health-related quality of life is not well understood. To assess the impact of dysphagia in ataxia patients on diet, body weight, and health-related quality of life. We conducted a large survey using self-reported questionnaires for swallowing-related quality of life (Swal-QOL) and a food frequency list in combination with retrospective clinical data of 119 patients with cerebellar ataxia treated in the neurological outpatient clinic of a large German university hospital. Seventeen percent of ataxia patients suffered from dysphagia based on the Swal-QOL score. Less than 1% of all patients reported dysphagia as one of their most disabling symptoms. Dysphagia was associated with unintentional weight loss (p = 0.02) and reduced health-related quality of life (p = 0.01) but did not affect individual nutritional habits (p > 0.05; Chi-squared test). Dysphagia is a relevant symptom in cerebellar ataxia. A systematic screening for dysphagia in patients with cerebellar ataxia would be desirable to enable early diagnosis and treatment.
Collapse
Affiliation(s)
- M Rönnefarth
- Department of Neurology, Charité-Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117, Berlin, Germany
| | - N Hanisch
- Department of Neurology, Charité-Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117, Berlin, Germany
| | - A U Brandt
- NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - A Mähler
- Experimental & Clinical Research Center, Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125, Berlin, Germany
| | - M Endres
- Department of Neurology, Charité-Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117, Berlin, Germany.,NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - F Paul
- Department of Neurology, Charité-Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117, Berlin, Germany.,NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Experimental & Clinical Research Center, Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125, Berlin, Germany
| | - Sarah Doss
- Department of Neurology, Charité-Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117, Berlin, Germany. .,Movement Disorders Section, Department of Neurological Sciences, University of Nebraska Medical Center, 4242 Farnam Street, 68131, Omaha, NE, USA.
| |
Collapse
|
15
|
Zhang X, Sun Z, Richy N, Mongin O, Paul F, Blanchard-Desce M, Paul-Roth CO. Synthesis, characterization and optical properties of new tetrafluorenyl-porphyrins peripherally functionalized with conjugated 2-fluorenone groups. NEW J CHEM 2021. [DOI: 10.1039/d1nj01410b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Star shaped porphyrins decorated with external fluorenonyl arms have been isolated. Their luminescence and selected photophysical properties are discussed in the frame of two-photon-induced theranostics.
Collapse
Affiliation(s)
- Xu Zhang
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226, F-35000 Rennes, France
| | - Zhipeng Sun
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226, F-35000 Rennes, France
| | - Nicolas Richy
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226, F-35000 Rennes, France
| | - Olivier Mongin
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226, F-35000 Rennes, France
| | - Frédéric Paul
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226, F-35000 Rennes, France
| | - Mireille Blanchard-Desce
- Université de Bordeaux, Institut des Sciences Moléculaires (CNRS UMR 5255), 33405 Talence, France
| | - Christine O. Paul-Roth
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226, F-35000 Rennes, France
| |
Collapse
|
16
|
Amar A, Elkechai A, Halet JF, Paul F, Boucekkine A. Two-photon absorption of dipolar and quadrupolar oligothiophene-cored chromophore derivatives containing terminal dimesitylboryl moieties: a theoretical (DFT) structure–property investigation. NEW J CHEM 2021. [DOI: 10.1039/d1nj01467f] [Citation(s) in RCA: 2] [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: 01/08/2023]
Abstract
Electron density difference between the S2 state reached by the 2PA and the ground state S0 (ΔμS2–S0 = 1.70 D) for 2TM-NMe3+.
Collapse
Affiliation(s)
- Anissa Amar
- Laboratoire de Physique et Chimie Quantiques, Faculté des Sciences, Université Mouloud Mammeri de Tizi-Ouzou, 15000 Tizi-Ouzou, Algeria
| | - Aziz Elkechai
- Laboratoire de Physique et Chimie Quantiques, Faculté des Sciences, Université Mouloud Mammeri de Tizi-Ouzou, 15000 Tizi-Ouzou, Algeria
| | - Jean-François Halet
- CNRS-Saint Gobain-NIMS, IRL 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Tsukuba, 305-0044, Japan
| | - Frédéric Paul
- Univ Rennes, CNRS, ISCR UMR 6226, 35042 Rennes, France
| | | |
Collapse
|
17
|
Rabouel I, Richy N, Amar A, Boucekkine A, Roisnel T, Mongin O, Humphrey MG, Paul F. 1,3,5-Triaryl-1,3,5-Triazinane-2,4,6-Trithiones: Synthesis, Electronic Structure and Linear Optical Properties. Molecules 2020; 25:molecules25225475. [PMID: 33238454 PMCID: PMC7700228 DOI: 10.3390/molecules25225475] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 12/02/2022] Open
Abstract
The synthesis of four new 1,3,5-triaryl-1,3,5-triazinane-2,4,6-trithione derivatives (thioisocyanurates) and two new partially thionated analogues from the corresponding 1,3,5-triaryl-1,3,5-triazinane-2,4,6-triones (isocyanurates) is reported, together with their spectroscopic properties. DFT calculations and comparison with the corresponding isocyanurates evidence the impact of the oxygen-for-sulfur replacement on the electronic structure and linear optical properties of these heterocycles. A bathochromic shift of the absorption bands and more efficient quenching of the fluorescence was observed.
Collapse
Affiliation(s)
- Ismaël Rabouel
- ISCR (Institut des Sciences Chimiques de Rennes), Université de Rennes, CNRS, UMR 6226, 35000 Rennes, France; (I.R.); (N.R.); (T.R.); (O.M.)
| | - Nicolas Richy
- ISCR (Institut des Sciences Chimiques de Rennes), Université de Rennes, CNRS, UMR 6226, 35000 Rennes, France; (I.R.); (N.R.); (T.R.); (O.M.)
| | - Anissa Amar
- Département de Chimie, Faculté des Sciences, Université Mouloud Mammeri, 15000 Tizi-Ouzou, Algeria;
- Faculté de Chimie, Université des Sciences et de la Technologie Houari-Boumediene, 16111 Bab-Ezzouar, Algeria
| | - Abdou Boucekkine
- ISCR (Institut des Sciences Chimiques de Rennes), Université de Rennes, CNRS, UMR 6226, 35000 Rennes, France; (I.R.); (N.R.); (T.R.); (O.M.)
- Correspondence: (A.B.); (M.G.H.); (F.P.); Tel.: +33-02-23-23-59-62 (F.P.)
| | - Thierry Roisnel
- ISCR (Institut des Sciences Chimiques de Rennes), Université de Rennes, CNRS, UMR 6226, 35000 Rennes, France; (I.R.); (N.R.); (T.R.); (O.M.)
| | - Olivier Mongin
- ISCR (Institut des Sciences Chimiques de Rennes), Université de Rennes, CNRS, UMR 6226, 35000 Rennes, France; (I.R.); (N.R.); (T.R.); (O.M.)
| | - Mark G. Humphrey
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- Correspondence: (A.B.); (M.G.H.); (F.P.); Tel.: +33-02-23-23-59-62 (F.P.)
| | - Frédéric Paul
- ISCR (Institut des Sciences Chimiques de Rennes), Université de Rennes, CNRS, UMR 6226, 35000 Rennes, France; (I.R.); (N.R.); (T.R.); (O.M.)
- Correspondence: (A.B.); (M.G.H.); (F.P.); Tel.: +33-02-23-23-59-62 (F.P.)
| |
Collapse
|
18
|
Hsieh KL, Mirelman A, Shema-Shiratzky S, Galperin I, Regev K, Shen S, Schmitz-Hübsch T, Karni A, Paul F, Devos H, Sosnoff JJ, Hausdorff JM. A multi-modal virtual reality treadmill intervention for enhancing mobility and cognitive function in people with multiple sclerosis: Protocol for a randomized controlled trial. Contemp Clin Trials 2020; 97:106122. [PMID: 32858229 DOI: 10.1016/j.cct.2020.106122] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 04/30/2020] [Revised: 06/25/2020] [Accepted: 07/06/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Gait and cognitive impairments are common in individuals with Multiple Sclerosis (MS) and can interfere with everyday function. Those with MS have difficulties executing cognitive tasks and walking simultaneously, a reflection of dual-task interference. Therefore, dual-task training may improve functional ambulation. Additionally, using technology such as virtual reality can provide personalized rehabilitation while mimicking real-world environments. The purpose of this randomized controlled trial is to establish the benefits of a combined cognitive-motor virtual reality training on MS symptoms compared to conventional treadmill training. METHODS This study will be a single-blinded, two arm RCT with a six-week intervention period. 144 people with MS will be randomized into a treadmill training alone group or treadmill training with virtual reality group. Both groups will receive 18 sessions of training while walking on a treadmill, with the virtual reality group receiving feedback from the virtual system. Primary outcome measures include dual-task gait speed and information processing speed, which will be measured prior to training, one-week post-training, and three months following training. DISCUSSION This study will provide insight into the ability of a multi-modal cognitive-motor intervention to reduce dual-task cost and to enhance information processing speed in those with MS. This is one of the first studies that is powered to understand whether targeted dual-task training can improve MS symptoms and increase functional ambulation. We anticipate that those in the virtual reality group will have a significantly greater increase in dual-task gait speed and information processing speed than those achieved via treadmill training alone.
Collapse
Affiliation(s)
- K L Hsieh
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Illinois Multiple Sclerosis Research Collaborative, Interdisciplinary Health Science Institute, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - A Mirelman
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel; Department of Neurology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - S Shema-Shiratzky
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - I Galperin
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - K Regev
- Neuroimmunology and Multiple Sclerosis Unit of the Neurology Division, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - S Shen
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - T Schmitz-Hübsch
- NeuroCure, Charité - Universitaetsmedizin Berlin, Berlin, Germany; Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitaetsmedizin Berlin, Berlin, Germany
| | - A Karni
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel; Department of Neurology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Neuroimmunology and Multiple Sclerosis Unit of the Neurology Division, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - F Paul
- NeuroCure, Charité - Universitaetsmedizin Berlin, Berlin, Germany; Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitaetsmedizin Berlin, Berlin, Germany; Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - H Devos
- Laboratory for Advanced Rehabilitation Research in Simulation, Department of Physical Therapy and Rehabilitation Science, School of Health Professions, University of Kansas Medical Center, Kansas City, KS, United States of America
| | - J J Sosnoff
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Illinois Multiple Sclerosis Research Collaborative, Interdisciplinary Health Science Institute, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - J M Hausdorff
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel; Department of Physical Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Rush Alzheimer's Disease Center and Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA.
| |
Collapse
|
19
|
Hälbig TD, Wüstenberg T, Giess RM, Kunte H, Bellmann-Strobl J, Ruprecht K, Paul F. Emotional experience in patients with clinically isolated syndrome and early multiple sclerosis. Eur J Neurol 2020; 27:1537-1545. [PMID: 32307769 DOI: 10.1111/ene.14269] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 04/02/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND PURPOSE Evidence suggests that there are changes in the processing of emotional information (EP) in people with multiple sclerosis (MS). It is unclear which functional domains of EP are affected, whether these changes are secondary to other MS-related neuropsychological or psychiatric symptoms and if EP changes are present in early MS. The aim of the study was to investigate EP in patients with early MS (clinically isolated syndrome and early relapsing/remitting MS) and healthy controls (HCs). METHODS A total of 29 patients without neuropsychological or psychiatric deficits and 29 matched HCs were presented with pictures from the International Affective Picture System with negative, positive or neutral content. Participants rated the induced emotion regarding valence and arousal using nine-level Likert scales. A speeded recognition test assessed memory for the emotional stimuli and for the emotional modulation of response time. A subgroup of participants was tested during a magnetic resonance imaging (MRI) session. RESULTS Patients in the MRI subgroup rated the experience induced by pictures with positive or negative emotional content significantly more weakly than HCs. Further, these patients were significantly less aroused when watching the pictures from the International Affective Picture System. There were no effects in the non-MRI subgroup or effects on emotional memory or response times. CONCLUSIONS Emotional processing changes may be present in early MS in the form of flattened emotional experience on both the valence and arousal dimensions. These changes do not appear to be secondary to neuropsychological or psychiatric deficits. The fact that emotional flattening was only found in the MRI setting suggests that EP changes may be unmasked within stressful environments and points to the potential yet underestimated impact of the MRI setting on behavioral outcomes.
Collapse
Affiliation(s)
- T D Hälbig
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - T Wüstenberg
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - R M Giess
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - H Kunte
- Faculty of Natural Sciences, MSB, Medical School Berlin, Berlin, Germany
| | - J Bellmann-Strobl
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - K Ruprecht
- Department of Neurology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - F Paul
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
20
|
Le Tohic S, Muziotti C, Ferrand E, Paul F, Bailli A, Gauthier G, Boulliat C. Analyse des erreurs de préparation des piluliers dans le cadre de la DJIN destinée au service de psychiatrie à l’HIA Laveran. Eur Psychiatry 2020. [DOI: 10.1016/j.eurpsy.2015.09.314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
IntroductionDans le cadre de la sécurisation du circuit du médicament, une EPP a été réalisée pour mettre en évidence le nombre d’erreurs identifiées lors de la préparation des piluliers dans le cadre de la DJIN des patients hospitalisés en psychiatrie.Matériels et méthodeMenée de janvier à décembre 2014, cette étude prospective a permis de recenser et de typer les erreurs identifiées lors de la préparation des piluliers. Quotidiennement et de manière aléatoire, 4 chariots sur 10 étaient entièrement contrôlés. Les 6 autres ne l’étaient que partiellement, à raison de 2 piluliers choisis au hasard par chariot. Les résultats obtenus correspondent au nombre d’erreurs rapporté au nombre d’ordonnances contrôlées, par service et par mois.Résultats et discussionEn 2014, le pourcentage d’erreurs identifiées pour le service de psychiatrie est de 6,04 %, soit 1 erreur toutes les 26 lignes. Ce résultat est conforme aux données de la littérature (6–7 %)*, contrairement à celui obtenu pour l’ensemble de l’hôpital (7,78 %). En effet, le service de psychiatrie témoigne d’une certaine stabilité en raison d’une chronicité des pathologies traitées et d’une protocolisation des prises en charge. Les patients sont ainsi souvent suivis depuis longtemps et leur traitement ne change que ponctuellement. Cependant, malgré cette sécurité apparente, la vigilance de l’équipe soignante est essentielle : sur les 1300 ordonnances non contrôlées, 79 erreurs n’auraient donc pas été interceptées par la pharmacie, si le même pourcentage d’erreurs est appliqué.ConclusionLe double contrôle lors de la préparation des traitements est essentiel. Il permet d’intercepter les erreurs à la pharmacie, mais aussi dans le service clinique. À l’heure où l’exercice de l’infirmier est à la médicalisation, l’infirmier reste le dernier verrou avant le patient.
Collapse
|
21
|
Gautier Y, Argouarch G, Malvolti F, Blondeau B, Richy N, Amar A, Boucekkine A, Nawara K, Chlebowicz K, Orzanowska G, Dudek M, Matczyszyn K, Samoc M, Blanchard‐Desce M, Mongin O, Waluk J, Paul F. Triarylisocyanurate‐Based Fluorescent Two‐Photon Absorbers. Chempluschem 2020; 85:411-425. [DOI: 10.1002/cplu.202000036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/03/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Yohan Gautier
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| | - Gilles Argouarch
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| | - Floriane Malvolti
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| | - Benjamin Blondeau
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| | - Nicolas Richy
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| | - Anissa Amar
- Département de Chimie Faculté des SciencesUniversité Mouloud Mammeri 15000 Tizi-Ouzou Algeria
| | - Abdou Boucekkine
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| | - Krzysztof Nawara
- Faculty of Mathematics and ScienceCardinal Stefan Wyszyński University 01-815 Warsaw Poland
| | - Katarzyna Chlebowicz
- Faculty of Mathematics and ScienceCardinal Stefan Wyszyński University 01-815 Warsaw Poland
| | - Grażyna Orzanowska
- Institute of Physical ChemistryPolish Academy of Sciences Dear author, please add 01-224 Warsaw Poland
| | - Marta Dudek
- Advanced Materials Engineering and Modelling GroupWroclaw University of Science and Technology 50-370 Wroclaw Poland
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling GroupWroclaw University of Science and Technology 50-370 Wroclaw Poland
| | - Marek Samoc
- Advanced Materials Engineering and Modelling GroupWroclaw University of Science and Technology 50-370 Wroclaw Poland
| | | | - Olivier Mongin
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| | - Jacek Waluk
- Faculty of Mathematics and ScienceCardinal Stefan Wyszyński University 01-815 Warsaw Poland
- Institute of Physical ChemistryPolish Academy of Sciences Dear author, please add 01-224 Warsaw Poland
| | - Frédéric Paul
- Univ Rennes, CNRSISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 35000 Rennes France
| |
Collapse
|
22
|
Fraysse C, Gignoux-Froment F, Juzan N, Cazes N, Poinso F, Paul F. Mesure de la prévalence du trouble de stress post-traumatique chez les marins-pompiers de Marseille. Ann Fr Med Urgence 2020. [DOI: 10.3166/afmu-2020-0218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Objectif : En France, peu d’études ont exploré la prévalence du trouble de stress post-traumatique (TSPT) chez les pompiers. Une étude de 2007 retrouve un taux de 1 %, identique à celui de la population générale. Or, les pompiers sont surexposés aux interventions potentiellement traumatogènes et sont donc à risque de traumatismes vicariants, c’est-à-dire par procuration. L’objectif de notre étude était d’estimer la prévalence du TSPT chez les marins-pompiers du bataillon de marins-pompiers de Marseille.
Matériel et méthodes : Durant six mois, les marins-pompiers se présentant à leur visite médicale périodique au service médical d’unité ont rempli un autoquestionnaire comprenant des données sociodémographiques, professionnelles et la Posttraumatic Stress Disorder Checklist Scale (PCLS) avec un seuil à 44.
Résultats : Parmi les 356 sauveteurs inclus, soit un taux de réponse de 86 %, 4 % (IC 95 % : [2 ; 7]) avaient un TSPT. Les facteurs associés étaient une fatigue durable, des répercussions négatives sur la vie familiale, professionnelle, sociale et le ressenti d’un manque de soutien institutionnel.
Conclusion : Ces résultats confirment que les sauveteurs constituent une population à risque. Afin de comparer avec les études internationales, de nouvelles recherches avec la PCL-5 seraient souhaitables.
Collapse
|
23
|
Chien C, Juenger V, Scheel M, Brandt AU, Paul F. Considerations for Mean Upper Cervical Cord Area Implementation in a Longitudinal MRI Setting: Methods, Interrater Reliability, and MRI Quality Control. AJNR Am J Neuroradiol 2020; 41:343-350. [PMID: 31974079 DOI: 10.3174/ajnr.a6394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 12/04/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND PURPOSE Spinal cord atrophy is commonly measured from cerebral MRIs, including the upper cervical cord. However, rescan intraparticipant measures have not been investigated in healthy cohorts. This study investigated technical and rescan variability in the mean upper cervical cord area calculated from T1-weighted cerebral MRIs. MATERIALS AND METHODS In this retrospective study, 8 healthy participants were scanned and rescanned with non-distortion- and distortion-corrected MPRAGE sequences (11-50 sessions in 6-8 months), and 50 participants were scanned once with distortion-corrected MPRAGE sequences in the Day2day daily variability study. From another real-world observational cohort, we collected non-distortion-corrected MPRAGE scans from 27 healthy participants (annually for 2-4 years) and cross-sectionally from 77 participants. Statistical analyses included coefficient of variation, smallest real difference, intraclass correlation coefficient, Bland-Altman limits of agreement, and paired t tests. RESULTS Distortion- versus non-distortion-corrected MPRAGE-derived mean upper cervical cord areas were similar; however, a paired t test showed incomparability (t = 11.0, P = <.001). Higher variability was found in the mean upper cervical cord areas calculated from an automatic segmentation method. Interrater analysis yielded incomparable measures in the same participant scans (t = 4.5, P = <.001). Non-distortion-corrected mean upper cervical cord area measures were shown to be robust in real-world data (t = -1.04, P = .31). The main sources of variability were found to be artifacts from movement, head/neck positioning, and/or metal implants. CONCLUSIONS Technical variability in cord measures decreased using non-distortion-corrected MRIs, a semiautomatic segmentation approach, and 1 rater. Rescan variability was within ±4.4% for group mean upper cervical cord area when MR imaging quality criteria were met.
Collapse
Affiliation(s)
- C Chien
- From the Experimental and Clinical Research Center (C.C., V.J., A.U.B., F.P.), Max Delbrück Center for Molecular Medicine & Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- NeuroCure Clinical Research Center (C.C., V.J., M.S., A.U.B., F.P.)
| | - V Juenger
- From the Experimental and Clinical Research Center (C.C., V.J., A.U.B., F.P.), Max Delbrück Center for Molecular Medicine & Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- NeuroCure Clinical Research Center (C.C., V.J., M.S., A.U.B., F.P.)
- Departments of Neuroradiology (V.J., M.S.)
| | - M Scheel
- Departments of Neuroradiology (V.J., M.S.)
| | - A U Brandt
- From the Experimental and Clinical Research Center (C.C., V.J., A.U.B., F.P.), Max Delbrück Center for Molecular Medicine & Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- NeuroCure Clinical Research Center (C.C., V.J., M.S., A.U.B., F.P.)
- Department of Neurology (A.U.B.), University of California, Irvine, Irvine, California
| | - F Paul
- From the Experimental and Clinical Research Center (C.C., V.J., A.U.B., F.P.), Max Delbrück Center for Molecular Medicine & Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- NeuroCure Clinical Research Center (C.C., V.J., M.S., A.U.B., F.P.)
- Neurology (F.P.), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| |
Collapse
|
24
|
Bui AT, Philippe C, Beau M, Richy N, Cordier M, Roisnel T, Lemiègre L, Mongin O, Paul F, Trolez Y. Synthesis, characterization and unusual near-infrared luminescence of 1,1,4,4-tetracyanobutadiene derivatives. Chem Commun (Camb) 2020; 56:3571-3574. [DOI: 10.1039/c9cc09560h] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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
Two 1,1,4,4-tetracyanobutadiene (TCBD) derivatives were prepared by reaction of tetracyanoethylene with ynamides bearing either a pyrene or a perylene unit. They display luminescence that could be detected up to 1350 nm in the solid state.
Collapse
|
25
|
Zhang X, Ben Hassine S, Richy N, Mongin O, Blanchard-Desce M, Paul F, Paul-Roth CO. New porphyrin dendrimers with fluorenyl-based connectors: a simple way to improving the optical properties over dendrimers featuring 1,3,5-phenylene connectors. NEW J CHEM 2020. [DOI: 10.1039/c9nj06166e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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
Dendrimers with new fluorenyl-based connectors have been synthesized and characterized. Their detailed luminescence properties and selected photophysical properties are discussed in the frame of two-photon-induced theranostics.
Collapse
Affiliation(s)
- Xu Zhang
- Univ. Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Sarra Ben Hassine
- Univ. Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Nicolas Richy
- Univ. Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Olivier Mongin
- Univ. Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | | | - Frédéric Paul
- Univ. Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Christine O. Paul-Roth
- Univ. Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| |
Collapse
|
26
|
Shi L, Nguyen C, Daurat M, Dhieb AC, Smirani W, Blanchard-Desce M, Gary-Bobo M, Mongin O, Paul-Roth C, Paul F. Biocompatible conjugated fluorenylporphyrins for two-photon photodynamic therapy and fluorescence imaging. Chem Commun (Camb) 2019; 55:12231-12234. [PMID: 31553001 DOI: 10.1039/c9cc05657b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photophysical properties of a new series of fluorenyl porphyrins bearing water-solubilising oligoethyleneglycol chains are described. These biocompatible compounds present very good two-photon absorption and singlet oxygen generation properties, while retaining some fluorescence in water. After testing in vitro on breast cancer cells, some of them were shown to be efficient non-toxic two-photon photosensitisers allowing for fluorescence imaging, thus demonstrating their theranostic potential.
Collapse
Affiliation(s)
- Limiao Shi
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Christophe Nguyen
- Institut des Biomolécules Max Mousseron, UMR 5247, Université de Montpellier, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 05, France.
| | - Morgane Daurat
- Institut des Biomolécules Max Mousseron, UMR 5247, Université de Montpellier, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 05, France. and NanoMedSyn, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Abdelhamid Chiheb Dhieb
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. and Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, Université de Carthage, 7021 Zarzouna, Tunisia
| | - Wajda Smirani
- Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, Université de Carthage, 7021 Zarzouna, Tunisia
| | | | - Magali Gary-Bobo
- Institut des Biomolécules Max Mousseron, UMR 5247, Université de Montpellier, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 05, France.
| | - Olivier Mongin
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Christine Paul-Roth
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Frédéric Paul
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| |
Collapse
|
27
|
Zemp M, Huss M, Thibert E, Eckert N, McNabb R, Huber J, Barandun M, Machguth H, Nussbaumer SU, Gärtner-Roer I, Thomson L, Paul F, Maussion F, Kutuzov S, Cogley JG. Global glacier mass changes and their contributions to sea-level rise from 1961 to 2016. Nature 2019; 568:382-386. [PMID: 30962533 DOI: 10.1038/s41586-019-1071-0] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/24/2019] [Indexed: 11/09/2022]
Abstract
Glaciers distinct from the Greenland and Antarctic ice sheets cover an area of approximately 706,000 square kilometres globally1, with an estimated total volume of 170,000 cubic kilometres, or 0.4 metres of potential sea-level-rise equivalent2. Retreating and thinning glaciers are icons of climate change3 and affect regional runoff4 as well as global sea level5,6. In past reports from the Intergovernmental Panel on Climate Change, estimates of changes in glacier mass were based on the multiplication of averaged or interpolated results from available observations of a few hundred glaciers by defined regional glacier areas7-10. For data-scarce regions, these results had to be complemented with estimates based on satellite altimetry and gravimetry11. These past approaches were challenged by the small number and heterogeneous spatiotemporal distribution of in situ measurement series and their often unknown ability to represent their respective mountain ranges, as well as by the spatial limitations of satellite altimetry (for which only point data are available) and gravimetry (with its coarse resolution). Here we use an extrapolation of glaciological and geodetic observations to show that glaciers contributed 27 ± 22 millimetres to global mean sea-level rise from 1961 to 2016. Regional specific-mass-change rates for 2006-2016 range from -0.1 metres to -1.2 metres of water equivalent per year, resulting in a global sea-level contribution of 335 ± 144 gigatonnes, or 0.92 ± 0.39 millimetres, per year. Although statistical uncertainty ranges overlap, our conclusions suggest that glacier mass loss may be larger than previously reported11. The present glacier mass loss is equivalent to the sea-level contribution of the Greenland Ice Sheet12, clearly exceeds the loss from the Antarctic Ice Sheet13, and accounts for 25 to 30 per cent of the total observed sea-level rise14. Present mass-loss rates indicate that glaciers could almost disappear in some mountain ranges in this century, while heavily glacierized regions will continue to contribute to sea-level rise beyond 2100.
Collapse
Affiliation(s)
- M Zemp
- Department of Geography, University of Zurich, Zurich, Switzerland.
| | - M Huss
- Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zurich, Zurich, Switzerland.,Department of Geosciences, University of Fribourg, Fribourg, Switzerland
| | - E Thibert
- Université Grenoble Alpes, Irstea, UR ETGR, Grenoble, France
| | - N Eckert
- Université Grenoble Alpes, Irstea, UR ETGR, Grenoble, France
| | - R McNabb
- Department of Geosciences, University of Oslo, Oslo, Norway
| | - J Huber
- Department of Geography, University of Zurich, Zurich, Switzerland
| | - M Barandun
- Department of Geosciences, University of Fribourg, Fribourg, Switzerland
| | - H Machguth
- Department of Geography, University of Zurich, Zurich, Switzerland.,Department of Geosciences, University of Fribourg, Fribourg, Switzerland
| | - S U Nussbaumer
- Department of Geography, University of Zurich, Zurich, Switzerland.,Department of Geosciences, University of Fribourg, Fribourg, Switzerland
| | - I Gärtner-Roer
- Department of Geography, University of Zurich, Zurich, Switzerland
| | - L Thomson
- Department of Geography and Planning, Queen's University, Kingston, Ontario, Canada
| | - F Paul
- Department of Geography, University of Zurich, Zurich, Switzerland
| | - F Maussion
- Department of Atmospheric and Cryospheric Sciences, University of Innsbruck, Innsbruck, Austria
| | - S Kutuzov
- Department of Glaciology, Institute of Geography, Russian Academy of Sciences, Moscow, Russia
| | - J G Cogley
- Department of Geography, Trent University, Peterborough, Ontario, Canada
| |
Collapse
|
28
|
Abstract
Neuromyelitis optica spectrum disorders (NMOSD) are mostly relapsing inflammatory conditions of the central nervous system (CNS). In 55% of the cases of NMOSD optic neuritis (ON) is the most frequent first manifestation and can cause severe damage to the afferent visual system and the retina with resultant severe visual impairment. In recent years, investigations of the retina as part of the CNS by optical coherence tomography (OCT) has been shown to be a valid and efficient method for diagnostics and evaluation of the disease course in NMOSD. In addition, OCT not only shows severe damage of the afferent visual system due to multiple bouts of ON but also reveals NMOSD-specific intraretinal pathologies. The latter could be just as important for future differential diagnostics as for the evaluation of potential therapeutic targets. This article briefly reviews the principles of the OCT technique and describes its relevance for the diagnostics and assessment of disease course in NMOSD.
Collapse
Affiliation(s)
- F C Oertel
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member der Freien Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Deutschland
| | - H Zimmermann
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member der Freien Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Deutschland
| | - A U Brandt
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member der Freien Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Deutschland
| | - F Paul
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member der Freien Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Berlin, Deutschland. .,Klinik für Neurologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland. .,Experimental and Clinical Research Center, Max-Delbrück-Centrum für Molekulare Medizin, Charité - Universitätsmedizin Berlin, Berlin, Deutschland.
| |
Collapse
|
29
|
Olesen MN, Soelberg K, Debrabant B, Nilsson AC, Lillevang ST, Grauslund J, Brandslund I, Madsen JS, Paul F, Smith TJ, Jarius S, Asgari N. Cerebrospinal fluid biomarkers for predicting development of multiple sclerosis in acute optic neuritis: a population-based prospective cohort study. J Neuroinflammation 2019; 16:59. [PMID: 30857557 PMCID: PMC6410527 DOI: 10.1186/s12974-019-1440-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [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: 09/13/2018] [Accepted: 02/22/2019] [Indexed: 12/02/2022] Open
Abstract
Background Long-term outcome in multiple sclerosis (MS) depends on early treatment. In patients with acute optic neuritis (ON), an early inflammatory event, we investigated markers in cerebrospinal fluid (CSF), which may predict a diagnosis of MS. Methods Forty patients with acute ON were recruited in a prospective population-based cohort with median 29 months (range 19–41) of follow-up. Paired CSF and serum samples were taken within 14 days (range 2–38), prior to treatment. Prospectively, 16/40 patients were by a uniform algorithm diagnosed with MS (MS-ON) and 24 patients continued to manifest isolated ON (ION) during follow-up. Levels of cytokines and neurofilament light chain (NF-L) were measured at the onset of acute ON and compared to healthy controls (HC). Significance levels were corrected for multiple comparisons (“q”). The predictive value of biomarkers was determined with multivariable prediction models using nomograms. Results CSF TNF-α, IL-10, and CXCL13 levels were increased in MS-ON compared to those in ION patients (q = 0.021, 0.004, and 0.0006, respectively). MS-ON patients had increased CSF pleocytosis, IgG indices, and oligoclonal bands (OCBs) compared to ION (q = 0.0007, q = 0.0058, and q = 0.0021, respectively). CSF levels of IL-10, TNF-a, IL-17A, and CXCL13 in MS-ON patients correlated with leukocyte counts (r > 0.69 and p < 0.002) and IgG index (r > 0.55, p < 0.037). CSF NF-L levels were increased in ON patients compared to those in HC (q = 0.0077). In MS-ON, a progressive increase in NF-L levels was observed at 7 to 14 days after disease onset (r = 0.73, p < 0.0065). Receiver-operating characteristic (ROC) curves for two multivariable prediction models were generated, with IL-10, CXCL13, and NF-L in one (“candidate”) and IgG index, OCB, and leukocytes in another (“routine”). Area under the curve was 0.89 [95% CI 0.77–1] and 0.86 [0.74–0.98], respectively. Predictions of the risk of MS diagnosis were illustrated by two nomograms. Conclusions CSF TNF-α, IL-10, CXCL13, and NF-L levels were associated with the development of MS, suggesting that the inflammatory and neurodegenerative processes occurred early. Based on subsequent diagnosis, we observed a high predictive value of routine and candidate biomarkers in CSF for the development of MS in acute ON. The nomogram predictions may be useful in the diagnostic work-up of MS. Electronic supplementary material The online version of this article (10.1186/s12974-019-1440-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- M N Olesen
- Department of Neurology, Slagelse Hospital, Slagelse, Denmark.,Department of Clinical Immunology and Biochemistry, Lillebælt Hospital, Vejle, Denmark.,Institutes of Regional Health Research and Molecular Medicine, University of Southern Denmark, Winsloewsvej 25.2, 5000, Odense C, Denmark
| | - K Soelberg
- Department of Internal Medicine, Slagelse Hospital, Slagelse, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark.,Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark
| | - B Debrabant
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - A C Nilsson
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - S T Lillevang
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - J Grauslund
- Department of Ophthalmology, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - I Brandslund
- Department of Clinical Immunology and Biochemistry, Lillebælt Hospital, Vejle, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - J S Madsen
- Department of Clinical Immunology and Biochemistry, Lillebælt Hospital, Vejle, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - F Paul
- Clinical and Experimental Multiple Sclerosis Research Center and NeuroCure Clinical Research Center, Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - T J Smith
- Departments of Ophthalmology and Visual Sciences and Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
| | - N Asgari
- Department of Neurology, Slagelse Hospital, Slagelse, Denmark. .,Institutes of Regional Health Research and Molecular Medicine, University of Southern Denmark, Winsloewsvej 25.2, 5000, Odense C, Denmark. .,Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark.
| |
Collapse
|
30
|
Jarius S, Haas J, Paul F, Wildemann B. Myelinoclastic diffuse sclerosis (Schilder's disease) is immunologically distinct from multiple sclerosis: results from retrospective analysis of 92 lumbar punctures. J Neuroinflammation 2019; 16:51. [PMID: 30819213 PMCID: PMC6396538 DOI: 10.1186/s12974-019-1425-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 10/11/2018] [Accepted: 01/31/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Myelinoclastic diffuse sclerosis (MDS; also termed Schilder's disease) is a rare inflammatory demyelinating disorder of the central nervous system characterised by demyelination of vast areas of the white matter. It is unclear whether MDS is a variant of multiple sclerosis (MS) or a disease entity in its own right. OBJECTIVE To compare the cerebrospinal fluid (CSF) features of MDS with those of MS. METHODS Retrospective analysis of the CSF profile of all patients with MDS reported in the medical literature between 1960 and 2018. RESULTS The most striking finding was a substantial lack of oligoclonal bands (OCBs) in MDS, which were absent in at least 77% (30/39) of all lumbar punctures (LP) in the total cohort and in 86% in the subgroup of patients with normal very long-chain fatty acid serum ratios (VLCFA). Almost all cases published in the past 15 years were negative for OCBs. These findings are in contrast to MS, in which OCBs are present in up to 98% of cases (p < 0.00001 when compared with reference works in MS; both in adult and in pediatric patients). CSF pleocytosis was absent in at least 79% (46/58) of all LP (p < 0.0001 vs. MS) and in 92% (24/26) of LPs in the VLCFA-tested subgroup. CSF total protein levels were elevated in 56% of all LPs (p < 0.0001 vs. MS) and in 63% of LPs in the VLCFA-tested subgroup and were often higher than in typical MS (> 100 mg/dL in 13/22; up to 220 mg/dL). EBV serum antibodies, which are present in virtually all patients with MS, and the so-called MRZ (measles/rubella/zoster) reaction, a highly specific marker of MS, were absent in all of the few patients tested. In addition, we discuss further differences between MS and MDS, taking into account also Schilder's original comprehensive case description from 1912. CONCLUSION In the majority of patients diagnosed with MDS, CSF features differ significantly from those typically found in MS and are more similar to those previously reported in patients with myelin oligodendrocyte glycoprotein-immunoglobulin G (IgG)-positive encephalomyelitis, aquaporin-4-IgG-positive neuromyelitis optica spectrum disorders or Baló's concentric sclerosis. Our data suggest that MDS and MS are immunopathologically distinct entities in the majority of cases.
Collapse
Affiliation(s)
- S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany.
| | - J Haas
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - F Paul
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Clinical and Experimental Multiple Sclerosis Research Center, Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| |
Collapse
|
31
|
Zhang X, Abid S, Shi L, Williams JAG, Fox MA, Miomandre F, Tourbillon C, Audibert JF, Mongin O, Paul F, Paul-Roth CO. Fluorenylporphyrins functionalized by electrochromic ruthenium units as redox-triggered fluorescence switches. Dalton Trans 2019; 48:11897-11911. [DOI: 10.1039/c9dt02087j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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
The electrofluorochromic behaviour of two ruthenium-appended porphyrin dyads has been investigated. Differences in response according to the nature of the interposed aryl linker are rationalised with the aid of electrochemistry and TD-DFT calculations.
Collapse
Affiliation(s)
- Xu Zhang
- Univ Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Seifallah Abid
- Univ Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Limiao Shi
- Univ Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | | | - Mark A. Fox
- Department of Chemistry
- Durham University
- Durham
- U.K
| | - Fabien Miomandre
- PPSM, CNRS
- Ecole normale supérieure Paris-Saclay
- 94235 Cachan
- France
| | | | | | - Olivier Mongin
- Univ Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Frédéric Paul
- Univ Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| | - Christine O. Paul-Roth
- Univ Rennes
- INSA Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
| |
Collapse
|
32
|
Marchi J, Mayet A, Chamonaz C, de Laval F, Paul F, Marimoutou C. Differential Impact According to Mission's Operational Intensity on Psychoactive Substance Use: A Retrospective Cohort of French Male Army Service Members. Subst Use Misuse 2019; 54:841-851. [PMID: 30648459 DOI: 10.1080/10826084.2018.1547908] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Stressful deployments in combat areas are known to increase the risk of substance abuse in military personnel. OBJECTIVES The aim of the study was to compare deployment on stressful, high-intensity missions (HIMs) to deployment on low-intensity missions (LIMs) in order to understand factors associated with substance use variations across the mission. METHODS A retrospective cohort study based on a one-shot self-questionnaire was performed four months after their return on two samples of male French Army service members: one returning from an HIM and one from an LIM. The questionnaire focused on tobacco, alcohol, cannabis, cocaine, and psychoactive medication use at three times: before, during, and after the mission. RESULTS During an HIM, the frequency of tobacco use increased, alcohol use remained stable - although 38% declared a decrease in consumption - and illicit drug use decreased. During an LIM, tobacco and alcohol use increased, cannabis use remained stable, and only cocaine and medication use decreased. After their return, use levels among both samples reverted to values similar to those reported before the mission, except for a decrease in tobacco use observed at return from an HIM. The main factors perceived as related to variations were stress in an HIM and low cost in an LIM. Conclusions/importance: The study suggests a differential impact of deployment on substance use according to the operational intensity of the mission. Variations in use are predominant during the mission with a washout effect after returning home.
Collapse
Affiliation(s)
- Joffrey Marchi
- a CESPA, Centre d'Epidémiologie et de Santé Publique des Armées , SSA, Service de Santé des Armées , Marseille , France
| | - Aurélie Mayet
- a CESPA, Centre d'Epidémiologie et de Santé Publique des Armées , SSA, Service de Santé des Armées , Marseille , France.,b INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l'Information Médicale , Aix Marseille Univ , Marseille , France
| | - Claire Chamonaz
- c Hôpital d'Instruction des Armées Laveran , Marseille , France
| | - Franck de Laval
- a CESPA, Centre d'Epidémiologie et de Santé Publique des Armées , SSA, Service de Santé des Armées , Marseille , France
| | - Frédéric Paul
- c Hôpital d'Instruction des Armées Laveran , Marseille , France
| | - Catherine Marimoutou
- a CESPA, Centre d'Epidémiologie et de Santé Publique des Armées , SSA, Service de Santé des Armées , Marseille , France.,b INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l'Information Médicale , Aix Marseille Univ , Marseille , France
| |
Collapse
|
33
|
Merhi A, Grelaud G, Morshedi M, Abid S, Green KA, Barlow A, Groizard T, Kahlal S, Halet JF, Ngo HM, Ledoux I, Cifuentes MP, Humphrey MG, Paul F, Paul-Roth CO. Synthesis, characterization and third-order nonlinear optical properties of a dodecaruthenium organometallic dendrimer with a zinc(ii) tetraphenylporphyrin core. Dalton Trans 2018; 47:11123-11135. [PMID: 30043792 DOI: 10.1039/c8dt02301h] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Zn(ii) porphyrin-based dendrimer (52) containing twelve Ru(ii) alkynyl fragments, has been prepared following a convergent approach in two steps from 5,10,15,20-tetra(4-ethynylphenyl)porphyrinatozinc(ii) (6). The cubic nonlinear optical (NLO) properties of 52 and other derivatives of 6 have been measured by third-harmonic generation (THG) at 1907 nm and by Z-scan over the spectral range 500-1700 nm, revealing the remarkable NLO response of 52 in the near-IR range. These results highlight the beneficial role of the extended "cross fourchée"-like polymetallic structure of 52 on its third-order NLO properties.
Collapse
Affiliation(s)
- Areej Merhi
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Paul F, Kühne A, Grube M, Heck V, Hänel P. Prävention und Versorgung für den Kiez: Sozialraum- und Bedarfsanalyse für ein stadtteilorientiertes Gesundheitszentrum in Berlin-Neukölln. Das Gesundheitswesen 2018. [DOI: 10.1055/s-0038-1667703] [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: 10/28/2022]
Affiliation(s)
- F Paul
- Gesundheitskollektiv Berlin e.V., Forschung und Evaluation, Berlin, Deutschland
| | - A Kühne
- Gesundheitskollektiv Berlin e.V., Berlin, Deutschland
| | - M Grube
- Gesundheitskollektiv Berlin e.V., Berlin, Deutschland
| | - V Heck
- Gesundheitskollektiv Berlin e.V., Berlin, Deutschland
| | - P Hänel
- Gesundheitskollektiv Berlin e.V., Berlin, Deutschland
| |
Collapse
|
35
|
Triadon A, Grelaud G, Richy N, Mongin O, Moxey GJ, Dixon IM, Yang X, Wang G, Barlow A, Rault-Berthelot J, Cifuentes MP, Humphrey MG, Paul F. Linear and Third-Order Nonlinear Optical Properties of Fe(η5-C5Me5)(κ2-dppe)- and trans-Ru(κ2-dppe)2-Alkynyl Complexes Containing 2-Fluorenyl End Groups. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00229] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amédée Triadon
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Guillaume Grelaud
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Nicolas Richy
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Olivier Mongin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Graeme J. Moxey
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Isabelle M. Dixon
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse, CNRS, F-31062 Toulouse, France
| | - Xinwei Yang
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Genmiao Wang
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Adam Barlow
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Joelle Rault-Berthelot
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Marie P. Cifuentes
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Mark G. Humphrey
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Frédéric Paul
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| |
Collapse
|
36
|
Chien C, Brandt AU, Schmidt F, Bellmann-Strobl J, Ruprecht K, Paul F, Scheel M. MRI-Based Methods for Spinal Cord Atrophy Evaluation: A Comparison of Cervical Cord Cross-Sectional Area, Cervical Cord Volume, and Full Spinal Cord Volume in Patients with Aquaporin-4 Antibody Seropositive Neuromyelitis Optica Spectrum Disorders. AJNR Am J Neuroradiol 2018; 39:1362-1368. [PMID: 29748202 DOI: 10.3174/ajnr.a5665] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 03/13/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Measures for spinal cord atrophy have become increasingly important as imaging biomarkers in the assessment of neuroinflammatory diseases, especially in neuromyelitis optica spectrum disorders. The most commonly used method, mean upper cervical cord area, is relatively easy to measure and can be performed on brain MRIs that capture cervical myelon. Measures of spinal cord volume (eg, cervical cord volume or total cord volume) require longer scanning and more complex analysis but are potentially better suited as spinal cord atrophy measures. This study investigated spinal cord atrophy measures in a cohort of healthy subjects and patients with aquaporin-4 antibody seropositive neuromyelitis optica spectrum disorders and evaluated the discriminatory performance of mean upper cervical cord cross-sectional area compared with cervical cord volume and total cord volume. MATERIALS AND METHODS Mean upper cervical cord area, cervical cord volume, and total cord volume were measured using 3T MRIs from healthy subjects (n = 19) and patients with neuromyelitis optica spectrum disorders (n = 30). Group comparison and receiver operating characteristic analyses between healthy controls and patients with neuromyelitis optica spectrum disorders were performed. RESULTS Mean upper cervical cord area, cervical cord volume, and total cord volume measures showed similar and highly significant group differences between healthy control subjects and patients with neuromyelitis optica spectrum disorders (P < .01 for all). All 3 measures showed similar receiver operating characteristic-area under the curve values (mean upper cervical cord area = 0.70, cervical cord volume = 0.75, total cord volume = 0.77) with no significant difference between them. No associations among mean upper cervical cord cross-sectional area, cervical cord volume, or total cord volume with disability measures were found. CONCLUSIONS All 3 measures showed similar discriminatory power between healthy control and neuromyelitis optica spectrum disorders groups. Mean upper cervical cord area is easier to obtain compared with cervical cord volume and total cord volume and can be regarded as an efficient representative measure of spinal cord atrophy in the neuromyelitis optica spectrum disorders context.
Collapse
Affiliation(s)
- C Chien
- From the NeuroCure Clinical Research Center (C.C., A.U.B., F.S., J.B.-S., F.P. M.S.)
| | - A U Brandt
- From the NeuroCure Clinical Research Center (C.C., A.U.B., F.S., J.B.-S., F.P. M.S.)
| | - F Schmidt
- From the NeuroCure Clinical Research Center (C.C., A.U.B., F.S., J.B.-S., F.P. M.S.).,Departments of Neurology (F.S., K.R., F.P.)
| | - J Bellmann-Strobl
- From the NeuroCure Clinical Research Center (C.C., A.U.B., F.S., J.B.-S., F.P. M.S.).,Experimental and Clinical Research Center (J.B.-S., F.P.), Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - K Ruprecht
- Departments of Neurology (F.S., K.R., F.P.)
| | - F Paul
- From the NeuroCure Clinical Research Center (C.C., A.U.B., F.S., J.B.-S., F.P. M.S.) .,Departments of Neurology (F.S., K.R., F.P.).,Experimental and Clinical Research Center (J.B.-S., F.P.), Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - M Scheel
- From the NeuroCure Clinical Research Center (C.C., A.U.B., F.S., J.B.-S., F.P. M.S.).,Neuroradiology (M.S.), Charité-Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
37
|
Jarius S, Paul F, Aktas O, Asgari N, Dale RC, de Seze J, Franciotta D, Fujihara K, Jacob A, Kim HJ, Kleiter I, Kümpfel T, Levy M, Palace J, Ruprecht K, Saiz A, Trebst C, Weinshenker BG, Wildemann B. MOG encephalomyelitis: international recommendations on diagnosis and antibody testing. J Neuroinflammation 2018; 15:134. [PMID: 29724224 PMCID: PMC5932838 DOI: 10.1186/s12974-018-1144-2] [Citation(s) in RCA: 478] [Impact Index Per Article: 79.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 04/02/2018] [Indexed: 02/11/2023] Open
Abstract
Over the past few years, new-generation cell-based assays have demonstrated a robust association of autoantibodies to full-length human myelin oligodendrocyte glycoprotein (MOG-IgG) with (mostly recurrent) optic neuritis, myelitis and brainstem encephalitis, as well as with acute disseminated encephalomyelitis (ADEM)-like presentations. Most experts now consider MOG-IgG-associated encephalomyelitis (MOG-EM) a disease entity in its own right, immunopathogenetically distinct from both classic multiple sclerosis (MS) and aquaporin-4 (AQP4)-IgG-positive neuromyelitis optica spectrum disorders (NMOSD). Owing to a substantial overlap in clinicoradiological presentation, MOG-EM was often unwittingly misdiagnosed as MS in the past. Accordingly, increasing numbers of patients with suspected or established MS are currently being tested for MOG-IgG. However, screening of large unselected cohorts for rare biomarkers can significantly reduce the positive predictive value of a test. To lessen the hazard of overdiagnosing MOG-EM, which may lead to inappropriate treatment, more selective criteria for MOG-IgG testing are urgently needed. In this paper, we propose indications for MOG-IgG testing based on expert consensus. In addition, we give a list of conditions atypical for MOG-EM ("red flags") that should prompt physicians to challenge a positive MOG-IgG test result. Finally, we provide recommendations regarding assay methodology, specimen sampling and data interpretation.
Collapse
Affiliation(s)
- S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University Hospital Heidelberg, Im Neuenheimer Feld 350, 69120, Heidelberg, Germany.
| | - F Paul
- Department of Neurology and Clinical and Experimental Multiple Sclerosis Research Center, Charité - Universitätsmedizin Berlin, Berlin, Germany.,NeuroCure Clinical Research Center and Clinical and Experimental Multiple Sclerosis Research Center, Berlin, Germany
| | - O Aktas
- Department of Neurology, University of Düsseldorf, Düsseldorf, Germany
| | - N Asgari
- Department of Neurology, University of Southern Denmark, Odense, Denmark
| | - R C Dale
- Children's Hospital at Westmead, University of Sydney, Sydney, Australia
| | - J de Seze
- Department of Neurology, Hôpital de Hautepierre, Strasbourg Cedex, France
| | - D Franciotta
- IRCCS, National Neurological Institute C. Mondino, Pavia, Italy
| | - K Fujihara
- Department of Multiple Sclerosis Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Jacob
- The Walton Centre, Walton Centre NHS Foundation Trust, Liverpool, UK
| | - H J Kim
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, South Korea
| | - I Kleiter
- Department of Neurology, Ruhr University Bochum, Bochum, Germany
| | - T Kümpfel
- Institute of Clinical Neuroimmunology, Ludwig Maximilian University, Munich, Germany
| | - M Levy
- Department of Neurology, Johns Hopkins Hospital, Cleveland, USA
| | - J Palace
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK
| | - K Ruprecht
- Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - A Saiz
- Service of Neurology, Hospital Clinic, and Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - C Trebst
- Department of Neurology, Hannover Medical School, Hanover, Germany
| | | | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University Hospital Heidelberg, Im Neuenheimer Feld 350, 69120, Heidelberg, Germany.
| |
Collapse
|
38
|
Jarius S, Ruprecht K, Stellmann JP, Huss A, Ayzenberg I, Willing A, Trebst C, Pawlitzki M, Abdelhak A, Grüter T, Leypoldt F, Haas J, Kleiter I, Tumani H, Fechner K, Reindl M, Paul F, Wildemann B. MOG-IgG in primary and secondary chronic progressive multiple sclerosis: a multicenter study of 200 patients and review of the literature. J Neuroinflammation 2018; 15:88. [PMID: 29554927 PMCID: PMC5859439 DOI: 10.1186/s12974-018-1108-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 02/26/2018] [Indexed: 12/30/2022] Open
Abstract
Background Antibodies to human full-length myelin oligodendrocyte glycoprotein (MOG-IgG) as detected by new-generation cell-based assays have recently been described in patients presenting with acute demyelinating disease of the central nervous system, including patients previously diagnosed with multiple sclerosis (MS). However, only limited data are available on the relevance of MOG-IgG testing in patients with chronic progressive demyelinating disease. It is unclear if patients with primary progressive MS (PPMS) or secondary progressive MS (SPMS) should routinely be tested for MOG-IgG. Objective To evaluate the frequency of MOG-IgG among patients classified as having PPMS or SPMS based on current diagnostic criteria. Methods For this purpose, we retrospectively tested serum samples of 200 patients with PPMS or SPMS for MOG-IgG using cell-based assays. In addition, we performed a review of the entire English language literature on MOG-IgG published between 2011 and 2017. Results None of 139 PPMS and 61 SPMS patients tested was positive for MOG-IgG. Based on a review of the literature, we identified 35 further MOG-IgG tests in patients with PPMS and 55 in patients with SPMS; the only reportedly positive sample was positive just at threshold level and was tested in a non-IgG-specific assay. In total, a single borderline positive result was observed among 290 tests. Conclusion Our data suggest that MOG-IgG is absent or extremely rare among patients with PPMS or SPMS. Routine screening of patients with typical PPMS/SPMS for MOG-IgG seems not to be justified.
Collapse
Affiliation(s)
- S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany. .,Otto Meyerhof Center, Im Neuenheimer Feld 350, 69120, Heidelberg, Germany.
| | - K Ruprecht
- Department of Neurology, Charité - University Medicine Berlin, Berlin, Germany
| | - J P Stellmann
- Institut für Neuroimmunologie und Multiple Sklerose (INIMS), Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.,Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - A Huss
- Department of Neurology, University of Ulm, Ulm, Germany
| | - I Ayzenberg
- Department of Neurology, Ruhr University Bochum, Bochum, Germany
| | - A Willing
- Institut für Neuroimmunologie und Multiple Sklerose (INIMS), Zentrum für Molekulare Neurobiologie Hamburg, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - C Trebst
- Department of Neurology, Hannover Medical School, Hanover, Germany
| | - M Pawlitzki
- Department of Neurology, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - A Abdelhak
- Department of Neurology, University of Ulm, Ulm, Germany
| | - T Grüter
- Department of Neurology, Ruhr University Bochum, Bochum, Germany
| | - F Leypoldt
- Department of Neurology and Institute of Laboratory Medicine, University Hospital Schleswig-Holstein, Kiel, Germany
| | - J Haas
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - I Kleiter
- Department of Neurology, Ruhr University Bochum, Bochum, Germany.,Marianne-Strauß-Klinik, Behandlungszentrum Kempfenhausen für Multiple Sklerose Kranke, Berg, Germany
| | - H Tumani
- Department of Neurology, University of Ulm, Ulm, Germany.,Specialty Clinic of Neurology Dietenbronn, Schwendi, Germany
| | - K Fechner
- Institute of Experimental Immunology, affiliated to Euroimmun AG, Lübeck, Germany
| | - M Reindl
- Clinical Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - F Paul
- Department of Neurology, Charité - University Medicine Berlin, Berlin, Germany.,NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany. .,Otto Meyerhof Center, Im Neuenheimer Feld 350, 69120, Heidelberg, Germany.
| |
Collapse
|
39
|
Heesen C, Haase R, Melzig S, Poettgen J, Berghoff M, Paul F, Zettl U, Marziniak M, Angstwurm K, Kern R, Ziemssen T, Stellmann JP. Perceptions on the value of bodily functions in multiple sclerosis. Acta Neurol Scand 2018; 137:356-362. [PMID: 29205262 DOI: 10.1111/ane.12881] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND In neurological diseases presenting with a plethora of symptoms, the value of bodily functions for a given patient might be a guide for clinical management. Multiple sclerosis (MS) is paradigmatic in this respect, and little is known about the value of different bodily functions of patients and their physicians' perceptions. METHODS In a multicenter study, 171 patients with relapsing-remitting multiple sclerosis (RRMS), 61% with a clinically active disease within the last 2 years were followed over up to 3 years and yearly patients and their study physician rated on the perceived value of 13 bodily functions via a priority list. Differences between patients and physicians as well as modulating disease demographic factors were analyzed. RESULTS Patients with RRMS rated visual function followed by thinking and memory and walking highest while physicians stressed mobility, followed by thinking and memory and alertness most. Ratings were independent from disease duration or disability. Strongest value judgment differences were seen in swallowing regarded more relevant by patients and hand function regarded more relevant by physicians. In general, patients' and physicians' ratings through time were quite stable. Collapsing physical items into a physical functioning scale and mental items in a mental function scale, both dimensions were regarded equally important by patients while physicians underscored physical functioning (P = .016). CONCLUSION There are differences between patients and physicians in value statements of bodily functions in MS. In particular, visual functioning is under-recognized by physicians.
Collapse
Affiliation(s)
- C. Heesen
- Institut für Neuroimmunologie und Multiple Sklerose; Universitätsklinikum Hamburg-Eppendorf; Hamburg Germany
- Klinik und Poliklinik für Neurologie; Universitätsklinikum Hamburg-Eppendorf; Hamburg Germany
| | - R. Haase
- Zentrum für klinische Neurowissenschaften; Klinik und Poliklinik für Neurologie; Universitätsklinikum Carlk Gustav Carus; Dresden Germany
| | - S. Melzig
- Zentrum für klinische Neurowissenschaften; Klinik und Poliklinik für Neurologie; Universitätsklinikum Carlk Gustav Carus; Dresden Germany
| | - J. Poettgen
- Institut für Neuroimmunologie und Multiple Sklerose; Universitätsklinikum Hamburg-Eppendorf; Hamburg Germany
- Klinik und Poliklinik für Neurologie; Universitätsklinikum Hamburg-Eppendorf; Hamburg Germany
| | - M. Berghoff
- Department of Neurology; Justus-Liebig University Giessen; Giessen Germany
| | - F. Paul
- NeuroCure Clinical Research Center and Experimental and Clinical Research Center; Clinical and Experimental Multiple Sclerosis Research Center; Department of Neurology; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - U. Zettl
- Zentrum für Nervenheilkunde; Klinik und Poliklinik für Neurologie; Universitätsmedizin Rostock; Rostock Germany
| | - M. Marziniak
- Neurologie; kbo-Isar-Amper-Klinikum; Haar Germany
| | - K. Angstwurm
- Klinik und Poliklinik für Neurologie der Universität Regensburg am Bezirksklinikum Regensburg; Regensburg Germany
| | - R. Kern
- Zentrum für klinische Neurowissenschaften; Klinik und Poliklinik für Neurologie; Universitätsklinikum Carlk Gustav Carus; Dresden Germany
| | - T. Ziemssen
- Zentrum für klinische Neurowissenschaften; Klinik und Poliklinik für Neurologie; Universitätsklinikum Carlk Gustav Carus; Dresden Germany
| | - J. P. Stellmann
- Institut für Neuroimmunologie und Multiple Sklerose; Universitätsklinikum Hamburg-Eppendorf; Hamburg Germany
- Klinik und Poliklinik für Neurologie; Universitätsklinikum Hamburg-Eppendorf; Hamburg Germany
| |
Collapse
|
40
|
Abstract
BACKGROUND Neuromyelitis optica spectrum disorders (NMOSD) are autoimmune inflammatory diseases of the central nervous system that mainly affect women. In some of these patients NMOSD occurs during fertile age. For this reason, treating physicians may be confronted with questions concerning family planning, pregnancy and birth. OBJECTIVE This study provides an overview on the influence of NMOSD on fertility, pregnancy complications and pregnancy outcome. The effect of pregnancy on NMOSD course and therapy options during pregnancy are discussed. MATERIAL AND METHODS A search of the current literature was carried out using the PubMed database. RESULTS AND CONCLUSION Animal studies have shown lower fertility rates in NMOSD; however, studies investigating fertility in NMOSD patients are lacking. Pregnancy in NMOSD patients are associated with an increase in postpartum disease activity and a higher grade of disability after pregnancy. Some studies showed higher risks of pregnancy complications e. g. spontaneous abortions and preeclampsia. With a few limitations, acute relapses during pregnancy can be treated with methylprednisolone and/or plasma exchange/immunoadsorption. Stopping or continuing immunosuppressive therapy with azathioprine or rituximab during pregnancy should be critically weighed considering previous and current disease activity. Therefore, a joint supervision by a specialized center is recommended, particularly in specific situations such as pregnancy.
Collapse
Affiliation(s)
- N Borisow
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117, Berlin, Deutschland.
| | - K Hellwig
- Klinik für Neurologie, St. Josef Hospital, Ruhr Universität Bochum, Bochum, Deutschland
| | - F Paul
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117, Berlin, Deutschland
- Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| |
Collapse
|
41
|
Jarius S, Würthwein C, Behrens JR, Wanner J, Haas J, Paul F, Wildemann B. Baló's concentric sclerosis is immunologically distinct from multiple sclerosis: results from retrospective analysis of almost 150 lumbar punctures. J Neuroinflammation 2018; 15:22. [PMID: 29347989 PMCID: PMC5774135 DOI: 10.1186/s12974-017-1043-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 12/14/2017] [Indexed: 01/01/2023] Open
Abstract
Background Baló’s concentric sclerosis (BCS) is a rare inflammatory demyelinating disorder of the central nervous system characterised by concentric layers of demyelination. It is unclear whether BCS is a variant of multiple sclerosis (MS) or a disease entity in its own right. Objective To compare the cerebrospinal fluid (CSF) features of BCS to those of MS. Methods Retrospective analysis of the CSF profile of all patients with BCS reported in the medical literature between 1980 and 2017. Results In total, the results of 146 lumbar punctures (LP) in 132 patients were analysed. The most striking finding was a lack of CSF-restricted oligoclonal bands (OCB) in 66% (56/85) of all LP in the total BCS group, in 74% (14/19) in the subgroup of patients with both MRI and histological evidence for BCS, and in 82% (18/22) in the subgroup of patients with highest radiological confidence (high MRI quality, ≥ 3 layers of demyelination). OCB disappeared in 1/2 initially OCB-positive patients. These findings are in stark contrast to MS, in which OCB are present in ≥ 95% of patients and are thought to remain stably detectable over the entire course of disease (p < 0.000001). OCB frequency was low both in ‘historic’ patients (1980–2009; 37%) and in more recent patients (2010–2017; 31%). OCB-positive and OCB-negative patients did not differ significantly with regard to age, sex, disease duration, number of Baló-like lesions on MRI, number of relapses, treatment or final outcome. In accordance with the high rate of OCB negativity, Link’s IgG index was negative in 63% of all tested samples (p < 0.000001 vs. MS). CSF pleocytosis was present in 28% (27/96; p < 0.000001 vs. MS) and elevated CSF total protein levels in 41% (31/76) of samples. Conclusion OCB and IgG index frequencies in BCS are much more similar to those reported in neuromyelitis optica or myelin oligodendrocyte glycoprotein antibody-associated encephalomyelitis than to those in MS. Our findings suggest that in most cases, BCS-like lesions denote the presence of a disease entity immunologically distinct from MS. In addition, we provide data on the demographics, clinical course and radiological features of BCS based on the largest cohort analysed to date.
Collapse
Affiliation(s)
- S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany.
| | - C Würthwein
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - J R Behrens
- NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - J Wanner
- NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - J Haas
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - F Paul
- NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Clinical and Experimental Multiple Sclerosis Research Center, Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité Universitätsmedizin Berlin, Berlin, Germany
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| |
Collapse
|
42
|
Yao D, Zhang X, Abid S, Shi L, Blanchard-Desce M, Mongin O, Paul F, Paul-Roth CO. New porphyrin-based dendrimers with alkene linked fluorenyl antennae for optics. NEW J CHEM 2018. [DOI: 10.1039/c7nj03522e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The biphotonic (σ2) singlet oxygen generation capability (ΦΔ) of new TFP-based photosensitizers peripherally functionalized with various dendrons containing 2-ethynylflorenyl chromophores is reported along with remarkable fluorescence yields (ΦF) of up to 17%.
Collapse
Affiliation(s)
- Dandan Yao
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- Campus de Beaulieu
- Rennes Cedex 35042
- France
| | - Xu Zhang
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- Campus de Beaulieu
- Rennes Cedex 35042
- France
| | - Seifallah Abid
- Institut National des Sciences Appliquées
- INSA-ISCR
- CNRS
- Rennes Cedex 35043
- France
| | - Limiao Shi
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- Campus de Beaulieu
- Rennes Cedex 35042
- France
| | - Mireille Blanchard-Desce
- Université de Bordeaux
- Institut des Sciences Moléculaires (UMR 5255)
- 351 Cours de la Libération
- Talence 33405
- France
| | - Olivier Mongin
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- Campus de Beaulieu
- Rennes Cedex 35042
- France
| | - Frédéric Paul
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- Campus de Beaulieu
- Rennes Cedex 35042
- France
| | - Christine O. Paul-Roth
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- Campus de Beaulieu
- Rennes Cedex 35042
- France
| |
Collapse
|
43
|
Triadon A, Ngo Ndimba A, Richy N, Amar A, Boucekkine A, Roisnel T, Cifuentes MP, Humphrey MG, Blanchard-Desce M, Mongin O, Paul F. Diphenylamino-substituted tristyryl vs. triphenyl isocyanurates: improved conjugation has minimal impact on two-photon absorption. NEW J CHEM 2018. [DOI: 10.1039/c8nj01904e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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
Planarization and extension of the central π-system does not increase two-photon absorption cross-section.
Collapse
|
44
|
Soelberg K, Skejoe HPB, Grauslund J, Smith TJ, Lillevang ST, Jarius S, Wildemann B, Paul F, Asgari N. Magnetic resonance imaging findings at the first episode of acute optic neuritis. Mult Scler Relat Disord 2017; 20:30-36. [PMID: 29291481 DOI: 10.1016/j.msard.2017.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 10/23/2017] [Revised: 11/30/2017] [Accepted: 12/22/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Optic neuritis (ON) is a focal demyelinating event, which may evolve into multiple sclerosis (MS). OBJECTIVE To study MRI characteristics in the acute phase of the first ON episode. METHODS A prospective population-based study was performed on 31 patients with a first episode of acute ON with a one year follow-up. MRI, clinical evaluation, and detection of aquaporin-4 (AQP4)-IgG and myelin oligodendrocyte glycoprotein (MOG)-IgG was undertaken. For lesion characterization on MRI the optic nerves were divided into three segments: intra-orbital (IO), canalicular (CAN) and chiasmal (CHI). RESULTS Lesions of the optic nerve were observed in 80.6%(25/31), with IO location in 48%(12/25), CAN in 8% (2/25) and both IO and CAN in 44%(11/25). Patients who converted to MS had lesions located at IO in 77%(10/13), whereas the group with isolated ON had IO and CAN in 73% (8/11), p = 0.003. Brain lesions were observed in 84% (21/25) at onset of ON; 62%(13/25) progressed to MS with more frequent location in brainstem (p = 0.030) and lesions in periventricular areas (p = 0.015). Spinal cord lesions were detected only in patients who progressed to MS (p = 0.002). MOG-IgG was detected in one patient with an optic nerve lesion located at IO and CAN. Serum AQP4-IgG was detected in none. Follow-up MRI showed progression in optic nerve lesions in 55% (11/20) patients. CONCLUSIONS Specific location of optic nerve and brain lesions and the presence of spinal cord lesions in the acute phase of the first ON episode facilitated an MS diagnosis. The extension of optic nerve lesions following ON suggests a long-term progressive degeneration as an important element of ON pathology.
Collapse
Affiliation(s)
- K Soelberg
- Institutes of Regional Health Research and Molecular Medicine, University of Southern Denmark, Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark; Departments of Neurology, Slagelse Hospital & Lillebaelt Hospital, Denmark; Department of Ophthalmology, Odense University Hospital, Denmark.
| | - H P B Skejoe
- Department of Radiology, Aleris-Hamlet Hospital, Copenhagen, Denmark.
| | - J Grauslund
- Department of Ophthalmology, Odense University Hospital, Denmark; Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
| | - T J Smith
- Departments of Ophthalmology and Visual Sciences and Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - S T Lillevang
- Department of Clinical Immunology, Odense University Hospital, Denmark.
| | - S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University Hospital Heidelberg, Germany.
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University Hospital Heidelberg, Germany.
| | - F Paul
- Clinical and Experimental Multiple Sclerosis Research Center and NeuroCure Clinical Research Center, Department of Neurology, Charité - Universitätsmedizin Berlin, Germany; Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany.
| | - N Asgari
- Department of Neurology Slagelse Hospital, Institute of Regional Health Research, Denmark; Department of Neurobiology, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.
| |
Collapse
|
45
|
Pokladek Z, Dudek M, Mongin O, Métivier R, Mlynarz P, Samoc M, Matczyszyn K, Paul F. Linear and Third-Order Nonlinear Optical Properties of Triazobenzene-1,3,5-triazinane-2,4,6-trione (Isocyanurate) Derivatives. Chempluschem 2017; 82:1372-1383. [DOI: 10.1002/cplu.201700396] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/13/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Ziemowit Pokladek
- Department of Bioorganic Chemistry; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Marta Dudek
- Department of Bioorganic Chemistry; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Olivier Mongin
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226); Université de Rennes 1; Campus de Beaulieu 35042 Rennes Cedex France
| | - Rémi Métivier
- PPSM; ENS Cachan; CNRS; Université Paris-Saclay; 94235 Cachan France
| | - Piotr Mlynarz
- Department of Bioorganic Chemistry; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Marek Samoc
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Frédéric Paul
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226); Université de Rennes 1; Campus de Beaulieu 35042 Rennes Cedex France
| |
Collapse
|
46
|
Pokladek Z, Dudek M, Mongin O, Métivier R, Mlynarz P, Samoc M, Matczyszyn K, Paul F. Cover Feature: Linear and Third-Order Nonlinear Optical Properties of Triazobenzene-1,3,5-triazinane-2,4,6-trione (Isocyanurate) Derivatives (ChemPlusChem 12/2017). Chempluschem 2017. [DOI: 10.1002/cplu.201700473] [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: 11/09/2022]
Affiliation(s)
- Ziemowit Pokladek
- Department of Bioorganic Chemistry; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Marta Dudek
- Department of Bioorganic Chemistry; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Olivier Mongin
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226); Université de Rennes 1; Campus de Beaulieu 35042 Rennes Cedex France
| | - Rémi Métivier
- PPSM; ENS Cachan; CNRS; Université Paris-Saclay; 94235 Cachan France
| | - Piotr Mlynarz
- Department of Bioorganic Chemistry; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Marek Samoc
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group; Wroclaw University of Science and Technology; 50-370 Wroclaw Poland
| | - Frédéric Paul
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226); Université de Rennes 1; Campus de Beaulieu 35042 Rennes Cedex France
| |
Collapse
|
47
|
Soelberg K, Jarius S, Skejoe H, Engberg H, Mehlsen JJ, Nilsson AC, Madsen JS, Reindl M, Wildemann B, Grauslund J, Kyvik KO, Smith TJ, Lillevang ST, Paul F, Weinshenker BG, Asgari N. A population-based prospective study of optic neuritis. Mult Scler 2017; 23:1893-1901. [PMID: 28980518 DOI: 10.1177/1352458517734070] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Optic neuritis (ON) is often associated with multiple sclerosis (MS). Early diagnosis is critical to optimal patient management. OBJECTIVE To estimate the incidence of acute ON and the rates of conversion to MS and antibody-mediated ON. METHOD Population-based prospective study was performed in patients with ON from three ophthalmological departments and 44 practicing ophthalmologists from 2014 to 2016. Ophthalmological and neurological examination, magnetic resonance imaging (MRI), determination of aquaporin-4(AQP4)-IgG and myelin-oligodendrocyte glycoprotein (MOG)-IgG were investigated blindly. RESULTS In all, 63 patients were evaluated and 51 fulfilled the criteria for ON. All were Caucasian, with female:male ratio of 2.2:1 and a median age of 38 years (16-66); 44 (86%) had a single episode of ON (four bilateral), while 7/51 (14%) had recurrent ON. The overall age-specific incidence was 3.28 (2.44-4.31) per 100,000 person years, 2.02 for men and 4.57 for women. At follow-up, 20 patients met the diagnostic criteria for MS, MRI lesions disseminated in space and time in 17/20 patients. AQP4-IgG was detected in none, MOG-IgG was detected in two patients. CONCLUSION The prospective incidence of ON was estimated. MRI enabled a diagnosis of MS in a subgroup of patients. Antibody-mediated ON with specificity for MOG was detected in 4% of cases.
Collapse
Affiliation(s)
- K Soelberg
- Departments of Regional Health Research and Molecular Medicine, University of Southern Denmark, Odense, Denmark/Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark/Department of Neurology, Slagelse Hospital, Slagelse, Denmark/Department of Neurology, Lillebaelt Hospital, Vejle, Denmark/Department of Ophthalmology, Odense University Hospital, Odense, Denmark
| | - S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
| | - Hpb Skejoe
- Department of Radiology, Aleris-Hamlet Hospital, Copenhagen, Denmark
| | - H Engberg
- Center for Clinical Epidemiology, Odense University Hospital, Odense, Denmark/Research Unit of Clinical Epidemiology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - J J Mehlsen
- Department of Ophthalmology, Lillebaelt Hospital, Vejle, Denmark
| | - A C Nilsson
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - J S Madsen
- Department of Clinical Immunology and Biochemistry, Lillebaelt Hospital, Vejle, Denmark
| | - M Reindl
- Clinical Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
| | - J Grauslund
- Department of Ophthalmology, Odense University Hospital, Odense, Denmark/Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - K O Kyvik
- Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark/Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - T J Smith
- Departments of Ophthalmology & Visual Sciences and Internal Medicine, Medical School, University of Michigan, Ann Arbor, MI, USA
| | - S T Lillevang
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - F Paul
- Clinical and Experimental Multiple Sclerosis Research Center and NeuroCure Clinical Research Center, Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany/Experimental and Clinical Research Center (ECRC), Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
| | | | - N Asgari
- Department of Neurology, Slagelse Hospital, Slagelse, Denmark/Departments of Regional Health Research, Neurobiology and Molecular Medicine, University of Southern Denmark, Odense, Denmark/Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark
| |
Collapse
|
48
|
Heesen C, Pöttgen J, Rahn AC, Liethmann K, Kasper J, Vahter L, Drulovic J, Van Nunen A, Wilkie D, Beckmann Y, Paul F, Köpke S, Giordano A, Solari A. What should a person with relapsing-remitting multiple sclerosis know? - Focus group and survey data of a risk knowledge questionnaire (RIKNO 2.0). Mult Scler Relat Disord 2017; 18:186-195. [PMID: 29141808 DOI: 10.1016/j.msard.2017.09.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 07/31/2017] [Accepted: 09/18/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Risk knowledge is relevant to make informed decisions in multiple sclerosis (MS). The risk knowledge questionnaire for relapsing-remitting MS (RIKNO 1.0) was developed and piloted in Germany. OBJECTIVE To produce a revised RIKNO 2.0 questionnaire using mixed methodology in a European setting. METHODS The questionnaire was translated in seven languages. MS patient and health professional (HP) expert feedback was obtained from Germany, Italy, Estonia, Serbia, and the UK. A German web-based survey of RIKNO 2.0 compared the tool with the MS Knowledge Questionnaire (MSKQ), each one used with two versions (with/without a "don't know" DN option). RESULTS While RIKNO 2.0 was considered difficult, it was rated as highly educational. One item was reframed, and two new items were added. The web-based German survey (n = 708 completers) showed that the DN version did not increase participation rate and did not produce significantly higher scores. Internal consistency (Cronbach alpha) without SN response was 0.73. RIKNO 2.0 scores showed normality distribution irrespective of the answering format. Item difficulty was high ranging from 0.07 to 0.79. Less than 50% of questions were answered correctly (mean 8.9) compared to 80.4% in the MSKQ (mean 20.1). Higher numeracy competency and education were significantly, albeit weakly, associated to higher scores for both RIKNO 2.0 and MSKQ. CONCLUSION Including "don't know" options in knowledge questionnaires does not increase percentage of correct replies. RIKNO 2.0 is a complex questionnaire to be used in an educational context and studies on patient information. The tool is now available in seven languages.
Collapse
Affiliation(s)
- C Heesen
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.
| | - J Pöttgen
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany; Neurologische Klinik, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.
| | - A C Rahn
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany; Unit of Health Sciences and Education, University of Hamburg, Papendamm 21, 20146 Hamburg, Germany.
| | - K Liethmann
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany; Unit of Health Sciences and Education, University of Hamburg, Papendamm 21, 20146 Hamburg, Germany.
| | - J Kasper
- Faculty of Health Sciences, Arctic University of Norway, 9073 Tromsø, Norway.
| | - L Vahter
- Department of Neurology, West-Tallinn Central Hospital, Paldiski mnt. 68, 10617 Tallinn, Estonia.
| | - J Drulovic
- Institute of Neurology, Clinical Center of Serbia, University of Belgrade, Dr. Subotića Starijeg 6, 11000 Beograd, Serbia.
| | - A Van Nunen
- National MS-Centrum, Melsbroek, Vereeckenstraat 44, 1820 Melsbroek, Belgium.
| | - D Wilkie
- Clinical Trials Unit, Department of Neurology, Imperial College, Room 10L18 (Lab Block, Charing Cross Campus, Hammersmith, London W6 8RF, UK.
| | - Y Beckmann
- Department of Neurology, Ataturk Training and Research Hospital, Faculty of Medicine, Konak Mahallesi, İnönü Cad. 269. Sok. No:102, 35150 Karabağlar, Izmir, Turkey.
| | - F Paul
- NeuroCure Clinical Research Center and Clinical and Experimental Multiple Sclerosis Research Center, Department of Neurology, Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
| | - S Köpke
- Institute for Social Medicine and Epidemiology, University of Lübeck, Ratzeburger Allee 160, D-23562 Lübeck, Germany.
| | - A Giordano
- Unit of Neuroepidemiology, Foundation IRCCS Neurological Institute C. Besta, Milan, Via Celoria 11, 20133 Milan, Italy.
| | - A Solari
- Unit of Neuroepidemiology, Foundation IRCCS Neurological Institute C. Besta, Milan, Via Celoria 11, 20133 Milan, Italy.
| | | |
Collapse
|
49
|
Streatfield SL, Pradels C, Ndimba AN, Richy N, Amar A, Boucekkine A, Cifuentes MP, Humphrey MG, Mongin O, Paul F. Electronic Absorption, Emission and Two‐Photon Absorption Properties of Some Functional 1,3,5‐Triphenylbenzenes. ChemistrySelect 2017. [DOI: 10.1002/slct.201701653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Suzy L. Streatfield
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226) Université de Rennes 1, Campus de Beaulieu 35042 Rennes Cedex France
- Research School of Chemistry Australian National University Canberra, ACT 2601 Australia
| | - Claire Pradels
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226) Université de Rennes 1, Campus de Beaulieu 35042 Rennes Cedex France
| | - Alphonsine Ngo Ndimba
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226) Université de Rennes 1, Campus de Beaulieu 35042 Rennes Cedex France
| | - Nicolas Richy
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226) Université de Rennes 1, Campus de Beaulieu 35042 Rennes Cedex France
| | - Anissa Amar
- Département de Chimie Faculté des Sciences Université Mouloud Mammeri 15000 Tizi-Ouzou Algeria
| | - Abdou Boucekkine
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226) Université de Rennes 1, Campus de Beaulieu 35042 Rennes Cedex France
| | - Marie P. Cifuentes
- Research School of Chemistry Australian National University Canberra, ACT 2601 Australia
| | - Mark G. Humphrey
- Research School of Chemistry Australian National University Canberra, ACT 2601 Australia
| | - Olivier Mongin
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226) Université de Rennes 1, Campus de Beaulieu 35042 Rennes Cedex France
| | - Frédéric Paul
- Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226) Université de Rennes 1, Campus de Beaulieu 35042 Rennes Cedex France
| |
Collapse
|
50
|
Jarius S, König FB, Metz I, Ruprecht K, Paul F, Brück W, Wildemann B. Pattern II and pattern III MS are entities distinct from pattern I MS: evidence from cerebrospinal fluid analysis. J Neuroinflammation 2017; 14:171. [PMID: 28851393 PMCID: PMC5576197 DOI: 10.1186/s12974-017-0929-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [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: 02/01/2017] [Accepted: 07/26/2017] [Indexed: 01/01/2023] Open
Abstract
Background The diagnosis of multiple sclerosis (MS) is currently based solely on clinical and magnetic resonance imaging features. However, histopathological studies have revealed four different patterns of lesion pathology in patients diagnosed with MS, suggesting that MS may be a pathologically heterogeneous syndrome rather than a single disease entity. Objective The aim of this study was to investigate whether patients with pattern I MS differ from patients with pattern II or III MS with regard to cerebrospinal fluid (CSF) findings, especially with reference to intrathecal IgG synthesis, which is found in most patients with MS but is frequently missing in MS mimics such as aquaporin-4-IgG-positive neuromyelitis optica spectrum disorders and myelin oligodendrocyte glycoprotein-IgG-positive encephalomyelitis. Methods Findings from 68 lumbar punctures in patients who underwent brain biopsy as part of their diagnostic work-up and who could be unequivocally classified as having pattern I, pattern II or pattern III MS were analysed retrospectively. Results Oligoclonal bands (OCBs) were present in 88.2% of samples from pattern I MS patients but in only 27% of samples from patients with pattern II or pattern III MS (P < 0.00004); moreover, OCBs were present only transiently in some of the latter patients. A polyspecific intrathecal IgG response to measles, rubella and/or varicella zoster virus (so-called MRZ reaction) was previously reported in 60–80% of MS patients, but was absent in all pattern II or III MS patients tested (P < 0.00001 vs. previous cohorts). In contrast, the albumin CSF/serum ratio (QAlb), a marker of blood–CSF barrier function, was more frequently elevated in samples from pattern II and III MS patients (P < 0.002). Accordingly, QAlb values and albumin and total protein levels were higher in pattern II and III MS samples than in pattern I MS samples (P < 0.005, P < 0.009 and P < 0.006, respectively). Conclusions Patients with pattern II or pattern III MS differ significantly from patients with pattern I MS as well as from previous, histologically non-classified MS cohorts with regard to both intrathecal IgG synthesis and blood–CSF barrier function. Our findings strongly corroborate the notion that pattern II and pattern III MS are entities distinct from pattern I MS.
Collapse
Affiliation(s)
- S Jarius
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany.
| | - F B König
- Department of Neuropathology, University of Göttingen, Göttingen, Germany
| | - I Metz
- Department of Neuropathology, University of Göttingen, Göttingen, Germany
| | - K Ruprecht
- Department of Neurology, Charité University Medicine Berlin, Berlin, Germany
| | - F Paul
- Department of Neurology, Charité University Medicine Berlin, Berlin, Germany.,NeuroCure Clinical Research Center and Clinical and Experimental Multiple Sclerosis Research Center, Berlin, Germany
| | - W Brück
- Department of Neuropathology, University of Göttingen, Göttingen, Germany.
| | - B Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Heidelberg, Germany
| |
Collapse
|