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Wasser F, Zähter Ş, Sokol M, Rivers M, Atzeni S, Condamine FP, Cristoforetti G, Fauvel G, Fischer N, Gizzi LA, Hannasch A, Hesse M, Laštovička T, Lutz P, Rubovič P, Schaumann G, Schott N, Singh RL, Theobald W, Weber S, Ditmire T, Forner T, Roth M. Full aperture backscatter diagnostics for characterization of laser plasma instabilities at the extreme light infrastructure (ELI) beamlines. Rev Sci Instrum 2023; 94:093503. [PMID: 37737696 DOI: 10.1063/5.0153874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 09/04/2023] [Indexed: 09/23/2023]
Abstract
We report on the commissioning of a full aperture backscatter diagnostics station for the kilojoule, nanosecond high repetition rate L4n laser operating at a wavelength of 527 nm at the Extreme Light Infrastructure (ELI) - Beamlines, Dolni Brezany, Czech Republic. Light scattered back from laser-plasma interaction into the cone of the final focusing lens is captured and split into different channels to measure the signatures of laser plasma instabilities from stimulated Brillouin scattering, stimulated Raman scattering, and two plasmon decay with respect to back scattered energy, its spectrum, and its temporal profile. The performance was confirmed in a commissioning experiment with more than 800 shots at laser intensities ranging from 0.5 × 1013 to 1.1 × 1015 W cm-2. These diagnostics are permanently installed at ELI Beamlines, and can be used to understand the details of laser-plasma interactions in experiments with kJ and 527 nm light. The large number of shots that can be collected in an experimental campaign will allow us to study the details of the laser-plasma interaction with a high level of confidence.
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Affiliation(s)
- F Wasser
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
- IU Internationale Hochschule GmbH, Darmstädter Landstrasse 110, 60598 Frankfurt am Main, Germany
| | - Ş Zähter
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - M Sokol
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - M Rivers
- University of Texas, 110 Inner Campus Dr., Austin, Texas 78712, USA
| | - S Atzeni
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - F P Condamine
- Extreme Light Infrastructure ERIC, ELI-Beamlines Facility, 25241 Dolní Břežany, Czech Republic
| | | | - G Fauvel
- Extreme Light Infrastructure ERIC, ELI-Beamlines Facility, 25241 Dolní Břežany, Czech Republic
| | - N Fischer
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - L A Gizzi
- Intense Laser Irradiation Laboratory, INO-CNR, Pisa, Italy
| | - A Hannasch
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - M Hesse
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - T Laštovička
- Extreme Light Infrastructure ERIC, ELI-Beamlines Facility, 25241 Dolní Břežany, Czech Republic
| | - P Lutz
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - P Rubovič
- Extreme Light Infrastructure ERIC, ELI-Beamlines Facility, 25241 Dolní Břežany, Czech Republic
| | - G Schaumann
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - N Schott
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
- Technische Universität Darmstadt, Schlossgartenstrasse 9, 64289 Darmstadt, Germany
| | - R L Singh
- Extreme Light Infrastructure ERIC, ELI-Beamlines Facility, 25241 Dolní Břežany, Czech Republic
| | - W Theobald
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - S Weber
- Extreme Light Infrastructure ERIC, ELI-Beamlines Facility, 25241 Dolní Břežany, Czech Republic
| | - T Ditmire
- University of Texas, 110 Inner Campus Dr., Austin, Texas 78712, USA
| | - T Forner
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
| | - M Roth
- Focused Energy GmbH, Im Tiefen See 45, 64293 Darmstadt, Germany
- Technische Universität Darmstadt, Schlossgartenstrasse 9, 64289 Darmstadt, Germany
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Melcher C, Renner C, Piepenbrink M, Fischer N, Büttner A, Wegener V, Birkenmaier C, Jansson V, Wegener B. Biomechanical comparisons of three minimally invasive Achilles tendon percutaneous repair suture techniques. Clin Biomech (Bristol, Avon) 2022; 92:105578. [PMID: 35093798 DOI: 10.1016/j.clinbiomech.2022.105578] [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] [Received: 05/21/2021] [Revised: 12/14/2021] [Accepted: 01/11/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND While no gold standard exists for the management of Achilles tendon ruptures, surgical repair is common in healthy and active patients. Minimally invasive repair methods have become increasingly popular, while biomechanical equivalency hasn't been proven yet. METHODS A mid-substance Achilles tendon rupture was created 6 cm proximal to the calcaneal insertion in 27 fresh-frozen cadaveric ankles. Specimens were randomly allocated to 1 of 3 repair techniques: Huttunen et al. (2014) (1) PARS Achilles Jig System, Nyyssönen et al. (2008) (2) Achilles Midsubstance SpeedBridge™, Schipper and Cohen (2017) (3) Dresdner Instrument and subsequently subjected to cyclic loading with 250 cycles each at 1 Hz with 4 different loading ranges (20-100 N, 20-200 N, 20-300 N, and 20-400 N). FINDINGS After 250 cycles no significant differences in elongation were observed between PARS and Dresdner Instrument(p = 1.0). Furthermore, SpeedBridge™ repairs elongated less than either Dresdner Instrument (p = 0.0006) or PARS (p = 0.102). Main elongation (85%) occurred within the first 10 cycles with a comparable elongation in between 10 and 100 and 100-250 cycles. While all repairs withstood the first 250 cycles of cyclic loading from 20 to 100 N, only the PARS (468 ± 175) and Midsubstance SpeedBridge™ (538 ± 208) survived more cycles. Within all 3 groups suture cut out was seen to be the most common failure mechanism. INTERPRETATION Within all groups early repair elongation was seen. While this was least obvious within the SpeedBridge™ technique, ultimate strengths of repairs (cycles to failure) were comparable across PARS and SpeedBridge™ with a decline in the Dresdner Instrument group.
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Affiliation(s)
- C Melcher
- University Hospital Ulm, Department of Orthopedic Surgery (RKU), Oberer Eseelsberg 45, 89081 Ulm, Germany; University Hospital LMU Munich, Department of Orthopaedics, Physical Medicine and Rehabilitation, Marchioninistr 15, 81377 Munich, Germany.
| | - C Renner
- Arthrex GmbH, Erwin-Hielscher-Straße 9, 81249 München, Germany.
| | - M Piepenbrink
- Arthrex GmbH, Erwin-Hielscher-Straße 9, 81249 München, Germany.
| | - N Fischer
- Arthrex GmbH, Erwin-Hielscher-Straße 9, 81249 München, Germany.
| | - A Büttner
- University Hospital Rostock, Department of Forensic Medicine, St. Georg-Str.108, 18055 Rostock, Germany.
| | - V Wegener
- University Hospital LMU Munich, Department of Orthopaedics, Physical Medicine and Rehabilitation, Marchioninistr 15, 81377 Munich, Germany.
| | - C Birkenmaier
- University Hospital LMU Munich, Department of Orthopaedics, Physical Medicine and Rehabilitation, Marchioninistr 15, 81377 Munich, Germany.
| | - V Jansson
- University Hospital LMU Munich, Department of Orthopaedics, Physical Medicine and Rehabilitation, Marchioninistr 15, 81377 Munich, Germany.
| | - B Wegener
- University Hospital LMU Munich, Department of Orthopaedics, Physical Medicine and Rehabilitation, Marchioninistr 15, 81377 Munich, Germany.
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He J, Fischer N, Aparicio C. Durability of Cell Adhesion Peptides Coatings for Dental Implants. Dent Mater 2022. [DOI: 10.1016/j.dental.2021.12.120] [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: 11/16/2022]
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von Stillfried S, Freeborn B, Windeck S, Boor P, Böcker J, Schmidt J, Tholen P, Röhrig R, Majeed R, Wienströer J, Bremer J, Weis J, Knüchel R, Breitbach A, Bülow RD, Cacchi C, Wucherpfennig S, Märkl B, Claus R, Dhillon C, Schaller T, Sipos E, Spring O, Braun G, Römmele C, Kling E, Kröncke T, Wittmann M, Hirschbühl K, Heppner FL, Meinhardt J, Radbruch H, Streit S, Horst D, Elezkurtaj S, Quaas A, Göbel H, Friemann J, Hansen T, Titze U, Lorenzen J, Reuter T, Woloszyn J, Baretton G, Hilsenbeck J, Meinhardt M, Pablik J, Sommer L, Holotiuk O, Meinel M, Esposito I, Crudele G, Seidl M, Mahlke N, Hartmann A, Haller F, Eichhorn P, Lange F, Amann KU, Coras R, Ingenwerth M, Rawitzer J, Schmid KW, Theegarten D, Gradhand E, Smith K, Wild P, Birngruber CG, Schilling O, Werner M, Acker T, Gattenlöhner S, Franz J, Metz I, Stadelmann C, Stork L, Thomas C, Zechel S, Ströbel P, Fathke C, Harder A, Wickenhauser C, Glatzel M, Matschke J, Krasemann S, Dietz E, Edler C, Fitzek A, Fröb D, Heinemann A, Heinrich F, Klein A, Kniep I, Lohner L, Möbius D, Ondruschka B, Püschel K, Schädler J, Schröder AS, Sperhake JP, Aepfelbacher M, Fischer N, Lütgehetmann M, Pfefferle S, Jonigk D, Werlein C, Domke LM, Hartmann L, Klein I, Schirmacher P, Schwab C, Röcken C, Langer D, Roth W, Strobl S, Rudelius M, Delbridge C, Kasajima A, Kuhn PH, Slotta-Huspenina J, Weichert W, Weirich G, Stock K, Barth P, Schnepper A, Wardelmann E, Evert K, Evert M, Büttner A, Manhart J, Nigbur S, Bösmüller H, Fend F, Granai M, Klingel K, Warm V, Steinestel K, Umathum VG, Rosenwald A, Vogt N, Kurz F. [Update on collaborative autopsy-based research in German pathology, neuropathology, and forensic medicine]. Pathologie (Heidelb) 2022; 43:101-105. [PMID: 36114379 PMCID: PMC9483541 DOI: 10.1007/s00292-022-01117-w] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 08/30/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND Autopsies are a valuable tool for understanding disease, including COVID-19. MATERIALS AND METHODS The German Registry of COVID-19 Autopsies (DeRegCOVID), established in April 2020, serves as the electronic backbone of the National Autopsy Network (NATON), launched in early 2022 following DEFEAT PANDEMIcs. RESULTS The NATON consortium's interconnected, collaborative autopsy research is enabled by an unprecedented collaboration of 138 individuals at more than 35 German university and non-university autopsy centers through which pathology, neuropathology, and forensic medicine autopsy data including data on biomaterials are collected in DeRegCOVID and tissue-based research and methods development are conducted. More than 145 publications have now emerged from participating autopsy centers, highlighting various basic science and clinical aspects of COVID-19, such as thromboembolic events, organ tropism, SARS-CoV‑2 detection methods, and infectivity of SARS-CoV-2 at autopsy. CONCLUSIONS Participating centers have demonstrated the high value of autopsy and autopsy-derived data and biomaterials to modern medicine. The planned long-term continuation and further development of the registry and network, as well as the open and participatory design, will allow the involvement of all interested partners.
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Affiliation(s)
- Saskia von Stillfried
- Institut für Pathologie, Universitätsklinik RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Deutschland
| | - Benita Freeborn
- Institut für Pathologie, Universitätsklinik RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Deutschland
| | - Svenja Windeck
- Institut für Pathologie, Universitätsklinik RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Deutschland
| | - Peter Boor
- Institut für Pathologie, Universitätsklinik RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Deutschland ,Medizinische Klinik II (Nephrologie und Immunologie), Universitätsklinik RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Deutschland ,Elektronenmikroskopische Einrichtung, Universitätsklinik RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Deutschland
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Sousa JA, Batista E, Demeyer S, Fischer N, Pellegrino O, Ribeiro AS, Martins LL. Uncertainty calculation methodologies in microflow measurements: Comparison of GUM, GUM-S1 and Bayesian approach. Measurement (Lond) 2021; 181:109589. [PMID: 36540695 PMCID: PMC9756327 DOI: 10.1016/j.measurement.2021.109589] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/10/2021] [Accepted: 05/10/2021] [Indexed: 06/17/2023]
Abstract
The importance of measurement quality cannot be over emphasized in medical applications, as one is dealing with life issues and the wellbeing of society, from oncology to new-borns, and more recently to patients of the COVID-19 pandemic. In all these dire situations, the accuracy of fluid delivered according to a prescribed dose can be critical. Microflow applications are growing in importance for a wide variety of scientific fields, namely drug development and administration, Organ-on-a-Chip, or bioanalysis, but accurate and reliable measurements are a tough challenge in micro-to-femto flow operating ranges, from 2.78 × 10-4 mL/s down to 2.78 × 10-7 mL/s (1000 μL/h down to 1 μL/h). Several sources of error have been established such as the mass measurement, the fluid evaporation dependent on the gravimetric methodology implemented, the tube adsorption and the repeatability, believed to be closely related to the operating mode of the stepper motor and drive screw pitch of a syringe pump. In addition, the difficulty in dealing with microflow applications extends to the evaluation of measurement uncertainty which will qualify the quality of measurement. This is due to the conditions entailed when measuring very small values, close to zero, of a quantity such as the flow rate which is inherently positive. Alternative methods able to handle these features were developed and implemented, and their suitability will be discussed.
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Affiliation(s)
- J A Sousa
- IPQ - Portuguese Institute for Quality, 2829-513 Caparica, Portugal
| | - E Batista
- IPQ - Portuguese Institute for Quality, 2829-513 Caparica, Portugal
| | - S Demeyer
- LNE - Laboratoire National de Métrologie et d'Essais, 75724 Paris, France
| | - N Fischer
- LNE - Laboratoire National de Métrologie et d'Essais, 75724 Paris, France
| | - O Pellegrino
- IPQ - Portuguese Institute for Quality, 2829-513 Caparica, Portugal
| | - A S Ribeiro
- LNEC - National Laboratory for Civil Engineering, 1700-513 Lisboa, Portugal
| | - L L Martins
- LNEC - National Laboratory for Civil Engineering, 1700-513 Lisboa, Portugal
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Fehr M, Lang N, Rubio L, Güsewell S, Templeton A, Aeppli S, Tsang R, Hodgson D, Moccia A, Bargetzi M, Caspar C, Brülisauer DMA, Ebnöther M, Fischer N, Prica A, Kukreti V, Ghilardi G, Krasniqi F, Mey UJ, Mingrone W, Novak U, Richter P, Kridel R, Rodin D, Rütti M, Schmidt A, Stenner F, Voegeli M, Zander T, Crump M, Hitz F, Kuruvilla J. PROGNOSTIC FACTORS IN ELDERLY PATIENTS WITH CLASSICAL HODGKIN LYMPHOMA ‐ A JOINT ANALYSIS OF TWO CLINICAL DATABASES. Hematol Oncol 2021. [DOI: 10.1002/hon.113_2880] [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: 11/11/2022]
Affiliation(s)
- M Fehr
- Cantonal Hospital St. Gallen, Medical Oncology and Haematology St. Gallen Switzerland
| | - N Lang
- Hôpitaux Universitaires Genève, Department of Oncology Genève Switzerland
| | - L Rubio
- Manchester Royal Infirmary, Haematology Manchester UK
| | - S Güsewell
- Cantonal Hospital St. Gallen, Clinical Trials Unit St. Gallen Switzerland
| | - A.J. Templeton
- Claraspital Basel, Oncology and Haematology Basel Switzerland
| | - S Aeppli
- Cantonal Hospital St. Gallen, Medical Oncology and Haematology St. Gallen Switzerland
| | - R Tsang
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - D Hodgson
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - A Moccia
- Oncology Institute of Southern Switzerland, Department of Medical Oncology Bellinzona Switzerland
| | - M Bargetzi
- Cantonal Hospital Aarau, Haematology Aarau Switzerland
| | - C Caspar
- Cantonal Hospital Baden, Oncology und Haematology Baden Switzerland
| | | | - M Ebnöther
- Claraspital Basel, Oncology and Haematology Basel Switzerland
| | - N Fischer
- Cantonal Hospital Winterthur, Medical Oncology and Haematology Winterthur Switzerland
| | - A Prica
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - V Kukreti
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - G Ghilardi
- Oncology Institute of Southern Switzerland, Haematology Bellinzona Switzerland
| | - F Krasniqi
- University Hospital Basel, Oncology Basel Switzerland
| | - U. J Mey
- Cantonal Hospital Grisons, Oncology and Haematology Chur Switzerland
| | - W Mingrone
- Cantonal Hospital Olten, Centre for Oncology Olten Switzerland
| | - U Novak
- University Hospital Bern, Medical Oncology Bern Switzerland
| | - P Richter
- Cantonal Hospital Grisons, Oncology and Haematology Chur Switzerland
| | - R Kridel
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - D Rodin
- Princess Margaret Cancer Centre, Radiation Oncology Toronto Switzerland
| | - M Rütti
- Hospital Wil, Medicine Wil Switzerland
| | - A Schmidt
- Stadtspital Triemli, Medical Oncology und Haematology Zürich Switzerland
| | | | - M Voegeli
- Cantonal Hospital Baselland, Oncology and Haematology Liestal Switzerland
| | - T Zander
- Cantonal Hospital Luzern, Medical Oncology Luzern Switzerland
| | - M Crump
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - F Hitz
- Cantonal Hospital St. Gallen, Medical Oncology and Haematology St. Gallen Switzerland
| | - J Kuruvilla
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
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Fischer N, Kieferle I, Kulozik U, Germann N. Three-dimensional numerical investigation of the displacement of shear-thinning milk protein concentrates in spacer-filled channel. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Favrot C, Fischer N, Rostaher A, Olivry T. Evaluation of Plasma C-Reactive Protein as a Biomarker in Dogs with Atopic -Dermatitis Receiving Allergen-Specific Immunotherapy: A Pilot Study. SCHWEIZ ARCH TIERH 2021; 163:67-72. [PMID: 33528368 DOI: 10.17236/sat00287] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION In this pilot study, we wished to determine if C-reactive protein (CRP) levels could be a useful severity or treatment biomarker for canine atopic dermatitis (AD). Nine atopic dogs received allergen immunotherapy for 1 year. Blood was collected before and at four re-evaluation visits. At each time point, the skin lesions were graded with the Canine Atopic Dermatitis Extent and Severity Index (CADESI) 4, and the plasma CRP levels were measured by Enzyme-linked Immunosorbent Assay (ELISA). We found a significant yet minimal correlation between the CRP levels and the CADESI4 scores. The CRP levels were not significantly different between dogs with AD of increasing severity. Finally, there was no correlation between the percentage change in CADESI4 and CRP values during immunotherapy. In conclusion, the lack of significant difference in CRP levels between dogs of increasing AD severity and lack of correlation between percentage changes in skin lesion and CRP values suggest that this protein would not be a clinically-useful biomarker in atopic dogs.
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Affiliation(s)
- C Favrot
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich
| | - N Fischer
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich
| | - A Rostaher
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich
| | - T Olivry
- Department of Clinical Sciences, College of Veterinary Medicine, NC State University, Raleigh, NC 27607, USA
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Fischer N, Štulhofer A, Hald GM, Carvalheira A, Træen B. Sexual Satisfaction in Older Heterosexual Couples From Four European Countries: Exploring the Roles of Actual and Perceived Discrepancy in Sexual Interest. J Sex Res 2021; 58:64-73. [PMID: 32852228 DOI: 10.1080/00224499.2020.1809615] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Even though sexual activity frequently takes place with another person, research rarely focuses on how partners influence each other's sexual lives. This study used the sexual dyad to compare the concept of actual versus perceived discrepancy in sexual interest and explored how each is related to older partnered individuals' sexual satisfaction. Further, the study assessed the robustness of the association between sexual interest discrepancy and sexual satisfaction, if any, by controlling for emotional intimacy. The actor-partner interdependence model (APIM) using structural equation modeling (SEM) was applied to examine 677 heterosexual couples ages 60 to 75 in Norway, Denmark, Belgium, and Portugal. Although a couple's actual discrepancy in sexual interest was not predictive of female and male partners' sexual satisfaction, perceived discrepancy was negatively associated with sexual satisfaction in both partners after controlling for emotional intimacy. This indicates that the subjective feelings of being sexually dissimilar seem to be more important to sexual satisfaction than the actual mismatch among partners in older heterosexual couples. Moreover, the finding that emotional intimacy is linked with sexual satisfaction underscores the importance of a broader perspective on sexuality among older adults.
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Affiliation(s)
- N Fischer
- Department of Psychology, University of Oslo
| | - A Štulhofer
- Department of Sociology, University of Zagreb
| | - G M Hald
- Department of Public Health, University of Copenhagen
| | - A Carvalheira
- William James Center for Research, ISPA, University Institute
| | - B Træen
- Department of Psychology, University of Oslo
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Moccia AA, Aeppli S, Güsewell S, Bargetzi M, Caspar C, Brülisauer D, Ebnöther M, Fehr M, Fischer N, Ghilardi G, Krasniqi F, Lang N, Mey U, Mingrone W, Novak U, Pfleger C, Richter P, Rütti M, Schmidt A, Stenner F, Voegeli M, Zander T, Zucca E, Hitz F. Clinical characteristics and outcome of patients over 60 years with Hodgkin lymphoma treated in Switzerland. Hematol Oncol 2020; 39:196-204. [PMID: 33300135 DOI: 10.1002/hon.2830] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 12/06/2020] [Indexed: 11/09/2022]
Abstract
Hodgkin lymphoma (HL) in older patients appears to be a different disease compared with younger patients with historically lower survival rates. This is related to a variety of factors, including increased treatment-related toxicity, the presence of comorbidities, and biologic differences. In order to better assess the clinical characteristics, treatment strategies, and outcome of this particular population, we conducted a population-based, retrospective analysis including 269 patients with HL older than 60 years (median age 71 years, range 60-94), treated between 2000 and 2017 in 15 referral centers across Switzerland. Primary endpoints were overall survival (OS), progression-free survival (PFS), and cause-specific survival (CSS). The vast majority of patients were treated with curative intent, either with a combined modality approach (chemotherapy followed by radiation therapy) or with systemic therapy. At a median follow-up of 6.6 years (95% confidence interval [CI], 6.0-7.6), 5-year PFS was 52.2% (95% CI, 46.0-59.2), 5-year OS was 62.5% (95% CI, 56.4-69.2), and 5-year CSS was 85.1.8% (95% CI, 80.3-90.1) for the entire cohort. A significant difference in terms of CSS was observed for patients older than 71 years in comparison to patients aged 60-70 years (hazard ratio 2.6, 1.3-5.0, p = 0.005). Bleomycin-induced lung toxicity (BLT) was documented in 26 patients (17.7%) out of the 147 patients exposed to this compound and was more frequent in patients older than 71 years (15/60, 25%). Outcome of HL pts older than 71 years appeared to decrease substantially in comparison to the younger counterpart. Treatment-related toxicities appeared to be relevant, in particular, BLT. New, potentially less toxic strategies need to be investigated in prospective clinical trials in this particular frail population.
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Affiliation(s)
- A A Moccia
- Medical Oncology Clinic, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - S Aeppli
- Medical Oncology and Hematology Clinic, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - S Güsewell
- Clinical Trials Unit, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - M Bargetzi
- Hematology, Kantonsspital Aarau, Aarau, Switzerland
| | - C Caspar
- Medical Oncology and Hematology, Kantonsspital Baden, Baden, Switzerland
| | - D Brülisauer
- Medical Oncology Clinic, Inselspital, University Hospital of Bern, Bern, Switzerland
| | - M Ebnöther
- Medical Oncology and Hematology, Claraspital, Basel, Switzerland
| | - M Fehr
- Medical Oncology and Hematology Clinic, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - N Fischer
- Medical Oncology and Hematology Clinic, Kantonsspital Winterthur, Winterthur, Switzerland
| | - G Ghilardi
- Hematology Clinic, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - F Krasniqi
- Medical Oncology Clinic, University Hospital of Basel, Basel, Switzerland
| | - N Lang
- Medical Oncology Clinic, University Hospital of Geneva, Genève, Switzerland
| | - U Mey
- Medical Oncology and Hematology, Kantonsspital Graubünden, Chur, Switzerland
| | - W Mingrone
- Medical Oncology Clinic, Kantonsspital Olten, Olten, Switzerland
| | - U Novak
- Medical Oncology Clinic, Inselspital, University Hospital of Bern, Bern, Switzerland
| | - C Pfleger
- Medical Oncology and Hematology, Claraspital, Basel, Switzerland
| | - P Richter
- Medical Oncology and Hematology, Kantonsspital Graubünden, Chur, Switzerland
| | - M Rütti
- Internal Medicine Clinic, Spital Wil, Wil, Switzerland
| | - A Schmidt
- Medical Oncology and Hematology Clinic, Stadtspital Triemli, Zürich, Switzerland
| | - F Stenner
- Medical Oncology Clinic, University Hospital of Basel, Basel, Switzerland
| | - M Voegeli
- Medical Oncology and Hematology Clinic, Kantonsspital Baselland, Liestal, Switzerland
| | - T Zander
- Medical Oncology, Luzerner Kantonsspital, Luzern, Switzerland
| | - E Zucca
- Medical Oncology Clinic, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - F Hitz
- Medical Oncology and Hematology Clinic, Kantonsspital St. Gallen, St. Gallen, Switzerland
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Urbschat C, Schepanski S, Solano M, Stelzer I, Fischer N, Alawi M, Thiele K, Hecher K, Arck P. Fetal immune development is directly modulated by maternal immune cells during pregnancy in mice. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1717982] [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: 10/23/2022] Open
Affiliation(s)
- C Urbschat
- Klinik für Geburtshilfe und Pränatalmedizin, University Medical Center Hamburg-Eppendorf
| | - S Schepanski
- Klinik für Geburtshilfe und Pränatalmedizin, University Medical Center Hamburg-Eppendorf
| | - M.E Solano
- Klinik für Geburtshilfe und Pränatalmedizin, University Medical Center Hamburg-Eppendorf
| | - I Stelzer
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine
| | - N Fischer
- Center for Diagnostics, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf
| | - M Alawi
- Bioinformatics Core, University Medical Center Hamburg-Eppendorf
| | - K Thiele
- Klinik für Geburtshilfe und Pränatalmedizin, University Medical Center Hamburg-Eppendorf
| | - K Hecher
- Klinik für Geburtshilfe und Pränatalmedizin, University Medical Center Hamburg-Eppendorf
| | - P Arck
- Klinik für Geburtshilfe und Pränatalmedizin, University Medical Center Hamburg-Eppendorf
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12
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Fischer N, Træen B, Štulhofer A, Hald GM. Mechanisms underlying the association between perceived discrepancy in sexual interest and sexual satisfaction among partnered older adults in four European countries. Eur J Ageing 2020; 17:151-162. [PMID: 32549870 DOI: 10.1007/s10433-019-00541-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The ways in which the discrepancy between one's own interest in sex and that of one's partner may affect personal sexual satisfaction has rarely been systematically studied, especially among older adults. Previous research among younger adults indicates that a discrepancy in sexual desire can be detrimental in terms of several relationship outcomes, including sexual satisfaction. This study aimed to investigate a conceptual model of sexual satisfaction among coupled older adults which posits that the association between perceived discrepancy in sexual interest and sexual satisfaction is mediated by the frequency of sexual activity and emotional closeness during sex. Data from a probability-based postal survey that included 2695 partnered heterosexual adults aged 60-75 years from four European countries (Norway, Denmark, Belgium, and Portugal) were used to test the mediation model. Due to expected gender differences in the two mediators, all analyses were carried out separately for men and women. The findings supported the proposed model, suggesting that as an individual's perception of a discrepancy in sexual interest increases, his or her levels of sexual frequency and perceived closeness during sex decrease-which in turn diminishes sexual satisfaction. The results of this study provide insights into links among sexual interest, sexual frequency, emotional closeness, and sexual satisfaction in older adults, and point to substantial similarities in the sexuality of aging men and women in this regard.
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Affiliation(s)
- N Fischer
- Department of Psychology, University of Oslo, Forskningsveien 3A, 0373 Oslo, Norway
| | - B Træen
- Department of Psychology, University of Oslo, Forskningsveien 3A, 0373 Oslo, Norway
| | - A Štulhofer
- Department of Sociology, University of Zagreb, Zagreb, Croatia
| | - G M Hald
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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13
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Fischer N, Træen B. PS-1-1 Sexual Satisfaction in Older Couples From Four European Countries: Exploring the Effects of Actual and Perceived Discrepancy in Sexual Interest, Physical Affection, and Emotional Intimacy. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Fischer N, Schartinger VH, Dejaco D, Schmutzhard J, Riechelmann H, Plaikner M, Henninger B. Readout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical Validation. AJNR Am J Neuroradiol 2019; 40:1055-1059. [PMID: 31122917 DOI: 10.3174/ajnr.a6079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 12/06/2018] [Accepted: 04/21/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE MR imaging has become an important tool for the detection of cholesteatomas of the middle ear. Various diffusion-weighted imaging sequences are available and have shown promising results. This study aimed to evaluate readout-segmented echo-planar DWI for the detection of cholesteatoma and compare the results with surgical validation. MATERIALS AND METHODS Fifty patients with chronic otitis media (24 females and 26 males; range, 12-76 years of age; mean age, 41 years) who underwent MR imaging before an operation of the middle ear (1-169 days) were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout-segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. The results of the MR imaging evaluation were correlated with the results from the operation. RESULTS Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92% (95% confidence interval, 80.8%-97.8%), a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negative predictive value of 89%. In 1 case, a positive finding for cholesteatoma with readout-segmented echo-planar DWI could not be proved by histology, and in 3 cases, histology yielded a cholesteatoma that was not detected with MR imaging. CONCLUSIONS Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
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Affiliation(s)
- N Fischer
- From the Departments of Otorhinolaryngology (N.F., V.H.S., D.D., J.S., H.R.)
| | - V H Schartinger
- From the Departments of Otorhinolaryngology (N.F., V.H.S., D.D., J.S., H.R.)
| | - D Dejaco
- From the Departments of Otorhinolaryngology (N.F., V.H.S., D.D., J.S., H.R.)
| | - J Schmutzhard
- From the Departments of Otorhinolaryngology (N.F., V.H.S., D.D., J.S., H.R.)
| | - H Riechelmann
- From the Departments of Otorhinolaryngology (N.F., V.H.S., D.D., J.S., H.R.)
| | - M Plaikner
- Radiology (M.P., B.H.), Medical University of Innsbruck, Innsbruck, Austria
| | - B Henninger
- Radiology (M.P., B.H.), Medical University of Innsbruck, Innsbruck, Austria
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15
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Hatterer E, Chauchet X, Barba L, Richard F, Moine V, Chatel L, Cons L, Ravn U, Masternak K, Fischer N, Kosco-Vilbois M, Ferlin W, Buatois V, Shang L. Targeting a membrane-proximal epitope on mesothelin increases the tumoricidal activity of a bispecific antibody blocking CD47 on tumor cells. Eur J Cancer 2019. [DOI: 10.1016/j.ejca.2019.01.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Gueneau F, Ravn U, Fischer N. Round optimization for improved discovery of native bispecific antibodies. Methods 2019; 154:51-59. [PMID: 30448477 DOI: 10.1016/j.ymeth.2018.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/09/2018] [Accepted: 11/14/2018] [Indexed: 01/07/2023] Open
Abstract
The assembly of bispecific antibodies (bsAb) that retain the structure of a standard IgG can be challenging as the correct pairing of the different heavy and light chains has to be ensured while unwanted side products kept to a minimum. The use of antibodies sharing a common chain facilitates assembly of such bsAb formats but requires additional efforts during the initial discovery phase. We have developed a native bsAb format called κλ body based on antibodies that, while being specific for different antigens, share the same heavy chain. Such antibodies can readily be isolated from antibody libraries incorporating a single VH combined with light chain diversity. However, in order to improve the discovery process of such fixed VH antibodies, we developed a method to optimize populations of light chains by recovering and shuffling CDRL3 sequences that have been enriched for antigen binding by phage display selection. This approach allowed for the isolation of a more diverse and potent panel of antibodies blocking the interaction between PD-1 and PD-L1 when compared to our standard in vitro selection approach, thus providing better building blocks for subsequent bsAb generation.
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Affiliation(s)
- F Gueneau
- Novimmune SA, 14 chemin des Aulx, 1228 Plan-les-Ouates, Switzerland
| | - U Ravn
- Novimmune SA, 14 chemin des Aulx, 1228 Plan-les-Ouates, Switzerland
| | - N Fischer
- Novimmune SA, 14 chemin des Aulx, 1228 Plan-les-Ouates, Switzerland.
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17
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Hirschi S, Fischer N, Kalbermatter D, Laskowski PR, Ucurum Z, Müller DJ, Fotiadis D. Design and assembly of a chemically switchable and fluorescently traceable light-driven proton pump system for bionanotechnological applications. Sci Rep 2019; 9:1046. [PMID: 30705382 PMCID: PMC6355921 DOI: 10.1038/s41598-018-37260-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023] Open
Abstract
Energy-supplying modules are essential building blocks for the assembly of functional multicomponent nanoreactors in synthetic biology. Proteorhodopsin, a light-driven proton pump, is an ideal candidate to provide the required energy in form of an electrochemical proton gradient. Here we present an advanced proteoliposome system equipped with a chemically on-off switchable proteorhodopsin variant. The proton pump was engineered to optimize the specificity and efficiency of chemical deactivation and reactivation. To optically track and characterize the proteoliposome system using fluorescence microscopy and nanoparticle tracking analysis, fluorescenlty labelled lipids were implemented. Fluorescence is a highly valuable feature that enables detection and tracking of nanoreactors in complex media. Cryo-transmission electron microscopy, and correlative atomic force and confocal microscopy revealed that our procedure yields polylamellar proteoliposomes, which exhibit enhanced mechanical stability. The combination of these features makes the presented energizing system a promising foundation for the engineering of complex nanoreactors.
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Affiliation(s)
- S Hirschi
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - N Fischer
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - D Kalbermatter
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - P R Laskowski
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - Z Ucurum
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - D J Müller
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - D Fotiadis
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland.
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18
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Knauß S, Preuße C, Fischer N, Allenbach Y, Radbruch H, Matyash V, Endres M, Goebel H, Benveniste O, Stenzel W. INFLAMMATORY MYOPATHIES. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.185] [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: 11/25/2022]
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19
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Donker T, Van Esveld S, Fischer N, Van Straten A. 0Phobia - towards a virtual cure for acrophobia: study protocol for a randomized controlled trial. Trials 2018; 19:433. [PMID: 30092844 PMCID: PMC6085658 DOI: 10.1186/s13063-018-2704-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 05/24/2018] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Virtual reality exposure therapy (VRET) has been shown to be as effective as traditional forms of in vivo exposure therapy for the treatment of specific phobias. However, as with in vivo exposure, VRET still involves relatively high costs and limited accessibility which makes it prohibitive for a large part of the population. Innovative methods using smartphone applications (apps) may improve accessibility and scalability of VRET. The aim of this study is to evaluate 0Phobia, a gamified self-guided VRET for acrophobia that is delivered through a smartphone app in combination with rudimentary cardboard virtual reality (VR) goggles. METHODS/DESIGN Participants (N = 180, aged 18-65 years) with acrophobia symptoms will be recruited from the Dutch general population and randomized to either 0Phobia (n = 90) or a waitlist control condition (n = 90). 0Phobia will be delivered over a period of 3 weeks and includes psychoeducation, VR exposure, cognitive techniques, monitoring of symptoms, and relapse prevention. The primary outcome measure will be the Acrophobia Questionnaire. Secondary outcome measures will include user-friendliness, symptoms of anxiety, depression, and mastery. Assessments will take place online at baseline, directly after the intervention (post test) and at follow-up (3 months). DISCUSSION This study capitalizes on novel technology and recent scientific advances to develop an affordable and scalable treatment modality. TRIAL REGISTRATION Netherlands Trial Register: NTR6442 . Registered on 29 June 2017.
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Affiliation(s)
- T Donker
- Department of Clinical, Neuro and Developmental Psychology, Faculty of Movement- and Behavioral Sciences, Section Clinical Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands. .,Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands.
| | - S Van Esveld
- Faculty Governance and Global Affairs, Leiden University, Leiden, The Netherlands
| | - N Fischer
- Department of Clinical, Neuro and Developmental Psychology, Faculty of Movement- and Behavioral Sciences, Section Clinical Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands
| | - A Van Straten
- Department of Clinical, Neuro and Developmental Psychology, Faculty of Movement- and Behavioral Sciences, Section Clinical Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands
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20
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Chauchet X, Cons L, Chatel L, Buatois V, Shang L, Masternak K, Kosco-Vilbois M, Fischer N, Ferlin W. PO-452 Selective CD47 immune checkpoint blockade on tumour cells with bispecific antibodies to effectively control tumour growth: primary role of the phagocytes. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.473] [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: 11/03/2022] Open
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21
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Soscia D, Belle A, Fischer N, Enright H, Sales A, Osburn J, Benett W, Mukerjee E, Kulp K, Pannu S, Wheeler E. Controlled placement of multiple CNS cell populations to create complex neuronal cultures. PLoS One 2017; 12:e0188146. [PMID: 29161298 PMCID: PMC5697820 DOI: 10.1371/journal.pone.0188146] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 11/01/2017] [Indexed: 11/24/2022] Open
Abstract
In vitro brain-on-a-chip platforms hold promise in many areas including: drug discovery, evaluating effects of toxicants and pathogens, and disease modelling. A more accurate recapitulation of the intricate organization of the brain in vivo may require a complex in vitro system including organization of multiple neuronal cell types in an anatomically-relevant manner. Most approaches for compartmentalizing or segregating multiple cell types on microfabricated substrates use either permanent physical surface features or chemical surface functionalization. This study describes a removable insert that successfully deposits neurons from different brain areas onto discrete regions of a microelectrode array (MEA) surface, achieving a separation distance of 100 μm. The regional seeding area on the substrate is significantly smaller than current platforms using comparable placement methods. The non-permanent barrier between cell populations allows the cells to remain localized and attach to the substrate while the insert is in place and interact with neighboring regions after removal. The insert was used to simultaneously seed primary rodent hippocampal and cortical neurons onto MEAs. These cells retained their morphology, viability, and function after seeding through the cell insert through 28 days in vitro (DIV). Co-cultures of the two neuron types developed processes and formed integrated networks between the different MEA regions. Electrophysiological data demonstrated characteristic bursting features and waveform shapes that were consistent for each neuron type in both mono- and co-culture. Additionally, hippocampal cells co-cultured with cortical neurons showed an increase in within-burst firing rate (p = 0.013) and percent spikes in bursts (p = 0.002), changes that imply communication exists between the two cell types in co-culture. The cell seeding insert described in this work is a simple but effective method of separating distinct neuronal populations on microfabricated devices, and offers a unique approach to developing the types of complex in vitro cellular environments required for anatomically-relevant brain-on-a-chip devices.
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Affiliation(s)
- D. Soscia
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - A. Belle
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - N. Fischer
- Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - H. Enright
- Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - A. Sales
- Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - J. Osburn
- Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - W. Benett
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - E. Mukerjee
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - K. Kulp
- Physical and Life Science Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - S. Pannu
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
| | - E. Wheeler
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, California, United States of America
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22
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Fischer N, Preuße C, Allenbach Y, Benveniste O, Goebel H, Stenzel W. The role of autophagy and protein homeostasis in immune-mediated necrotizing myopathy. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Knauß S, Allenbach Y, Preuße C, Fischer N, Matyash V, Goebel H, Benveniste O, Stenzel W. PD1 and PDL2 axis confers T cell exhaustion in anti-SRP+ and anti-HMGCR+ myopathies. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Sekhon R, Rowan-Legg A, Gosselin-Papadopoulos R, Fischer N. CANADIAN PAEDIATRIC RESIDENT KNOWLEDGE AND PERCEPTION OF THEIR NATIONAL PAEDIATRIC PROFESSIONAL ORGANIZATION. Paediatr Child Health 2017. [DOI: 10.1093/pch/pxx086.050] [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: 11/12/2022] Open
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25
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Poitevin Y, Pontini G, Fischer N, Kosco-Vilbois M, Elson G. Magnetic sorting of membrane associated IgG for phenotype-based selection of stable antibody producing cells. J Immunol Methods 2017; 444:1-6. [PMID: 28189705 DOI: 10.1016/j.jim.2017.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/11/2016] [Revised: 02/07/2017] [Accepted: 02/07/2017] [Indexed: 12/11/2022]
Abstract
To establish a simple and widely accessible technique for rapidly selecting high producing Chinese hamster ovary (CHO) cells engineered to express a monoclonal antibody (mAb), we have exploited the transient display of recombinant protein on their cell surface. In combination with magnetic bead-based methods, we demonstrate the ability to select for cells of high productivity in the absence of any metabolic-based selection method. This technique is sufficient to obtain genetically stable engineered CHO cells via a single step of cell subcloning and yields sought-after stable, high IgG producing clonal cell lines. This technique may also be applied to other types of cells as well as polyclonal Ab cell pools.
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Affiliation(s)
- Y Poitevin
- Novimmune SA, 14 chemin des Aulx 1228 Plan-Les-Ouates, Switzerland.
| | - G Pontini
- Novimmune SA, 14 chemin des Aulx 1228 Plan-Les-Ouates, Switzerland
| | - N Fischer
- Novimmune SA, 14 chemin des Aulx 1228 Plan-Les-Ouates, Switzerland
| | - M Kosco-Vilbois
- Novimmune SA, 14 chemin des Aulx 1228 Plan-Les-Ouates, Switzerland
| | - G Elson
- Novimmune SA, 14 chemin des Aulx 1228 Plan-Les-Ouates, Switzerland
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26
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Hügle B, Scheuern A, Dollinger S, Fischer N, Haas JP. Cathechol-O-methyltransferase Val158Met polymorphism is associated with nocebo effects, but not with methotrexate intolerance in patients with juvenile idiopathic arthritis. Scand J Rheumatol 2017; 46:502-503. [DOI: 10.1080/03009742.2016.1275775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- B Hügle
- German Center for Pediatric and Adolescent Rheumatology, Garmisch-Partenkirchen, Germany
| | - A Scheuern
- German Center for Pediatric and Adolescent Rheumatology, Garmisch-Partenkirchen, Germany
| | - S Dollinger
- German Center for Pediatric and Adolescent Rheumatology, Garmisch-Partenkirchen, Germany
| | - N Fischer
- German Center for Pediatric and Adolescent Rheumatology, Garmisch-Partenkirchen, Germany
| | - J-P Haas
- German Center for Pediatric and Adolescent Rheumatology, Garmisch-Partenkirchen, Germany
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Hansmann D, Postel A, Bächlein C, Fischer N, Alawi M, Grundhoff A, Derking S, Tenhündfeld J, Pfankuche V, Herder V, Wendt M, Becher P, Baumgärtner W. Detection of a New Pestivirus in the Central Nervous System of Piglets with Congenital Tremors. J Comp Pathol 2017. [DOI: 10.1016/j.jcpa.2016.11.009] [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: 11/17/2022]
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28
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Fischer N, Rostaher A, Favrot C. [Intralymphatic immunotherapy: An effective and safe alternative route for canine atopic dermatitis]. SCHWEIZ ARCH TIERH 2016; 158:646-652. [PMID: 27655164 DOI: 10.17236/sat00085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Allergen-specific immunotherapy (ASIT) is the only etiologic treatment of atopic dermatitis in dogs. In humans it has been shown that intralymphatic immunotherapy (ILIT) enhanced efficacy and patient compliance and reduced treatment time from 3 years to 8 weeks. As only safety data have been published yet, the aim of this study was to evaluate the clinical efficacy of ILIT in dogs. 20 atopic dogs underwent ILIT with alum-precipitated allergens administered every 4 weeks for 3 to 7 times in the popliteal lymph node. Pruritus (Hill score), CADESI (canine atopic dermatitis severety index), concurrent medications and adverse reactions were recorded initially and every 4 weeks for a total period of 24 weeks. The observed clinical response was good in 12/20 (60%) patients and improvement could be seen in some dogs already after 4 weeks. The median number of injections was 5.6. All dogs tolerated the procedure well and no adverse effects were recognized during or after ILIT. Therefore ILIT should be regarded as a safe alternative to subucaneous ASIT, enabling a faster clinical improvement with the same response rate.
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Affiliation(s)
- N Fischer
- Klinik für Kleintiermedizin, Abteilung für Dermatologie, Vetsuisse-Fakultät, Universität Zürich
| | - A Rostaher
- Klinik für Kleintiermedizin, Abteilung für Dermatologie, Vetsuisse-Fakultät, Universität Zürich
| | - C Favrot
- Klinik für Kleintiermedizin, Abteilung für Dermatologie, Vetsuisse-Fakultät, Universität Zürich
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Abstract
We present the first public implementation of antenna-based QCD initial- and final-state showers. The shower kernels are [Formula: see text] antenna functions, which capture not only the collinear dynamics but also the leading soft (coherent) singularities of QCD matrix elements. We define the evolution measure to be inversely proportional to the leading poles, hence gluon emissions are evolved in a [Formula: see text] measure inversely proportional to the eikonal, while processes that only contain a single pole (e.g., [Formula: see text]) are evolved in virtuality. Non-ordered emissions are allowed, suppressed by an additional power of [Formula: see text]. Recoils and kinematics are governed by exact on-shell [Formula: see text] phase-space factorisations. This first implementation is limited to massless QCD partons and colourless resonances. Tree-level matrix-element corrections are included for QCD up to [Formula: see text] (4 jets), and for Drell-Yan and Higgs production up to [Formula: see text] (V / H + 3 jets). The resulting algorithm has been made publicly available in Vincia 2.0.
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Affiliation(s)
- N. Fischer
- School of Physics and Astronomy, Monash University, Clayton, VIC 3800 Australia
| | - S. Prestel
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025 USA
| | - M. Ritzmann
- Nikhef, Theory Group, Science Park 105, 1098 XG Amsterdam, The Netherlands
- Institut de Physique Théorique, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - P. Skands
- School of Physics and Astronomy, Monash University, Clayton, VIC 3800 Australia
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30
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Affiliation(s)
- N. Fischer
- Klinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Universität Innsbruck
| | - B. Weber
- Klinik für Hör-, Stimm- und Sprachstörungen, Medizinische Universität Innsbruck
| | - H. Riechelmann
- Klinik für Hals-, Nasen- und Ohrenheilkunde, Medizinische Universität Innsbruck
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31
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Pillot T, Goetghebeur P, Rimet D, Fischer N, Terroire Y, Colin S, Allouche A, Koziel V, Kopke A. P4‐271: Alpha‐Synuclein Oligomer Preparations Induce Neurodegeneration and Cognitive Decline: a Novel Model for Parkinson’s DISEASE. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.07.013] [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: 10/20/2022]
Affiliation(s)
| | | | - D. Rimet
- SynAging SAVandoeuvre-les-NancyFrance
| | | | | | - S. Colin
- SynAging SAVandoeuvre-les-NancyFrance
| | | | - V. Koziel
- SynAging SAVandoeuvre-les-NancyFrance
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32
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Fischer N, Soraisham A, Lodha A, Ting J, Rabi J, Synnes A, Creighton D, Shah P, Singhal N, Dewey D, Metcalfe A, Ballantyne M, Cooper S. Neurodevelopmental Outcomes Following Extensive Cardiopulmonary Resuscitation in the Delivery Room for Infants Born <29 Weeks’ Gestational Age. Paediatr Child Health 2016. [DOI: 10.1093/pch/21.supp5.e82d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
BACKGROUND: Neurodevelopmental outcomes of preterm infants who receive extensive CPR (ECPR), defined as chest compression with or without epinephrine in the delivery room, remain unclear.
OBJECTIVES: To compare the neurodevelopmental outcomes of preterm infants admitted to Canadian NICUs requiring ECPR versus those who did not require ECPR in the delivery room.
DESIGN/METHODS: Preterm infants born at <29 weeks GA between January 1, 2010 and September 30, 2011 and evaluated at CNFUN centers were retrospectively evaluated. The primary outcome was a composite of death or neurodevelopmental impairment (NDI) at 18-21 months CA defined as presence of any one or more of the following: definitive cerebral palsy or Bayley- III cognitive, language, motor scores <85 on any one of the components or hearing impairment or visual impairment. Demographic factors, neurodevelopmental status including Bayley III cognitive, language and motor scores and sensory impairments were compared between the ECPR and the no ECPR group using univariate and multivariate analyses. RESULTS: Of 2488 eligible infants, 197 (7.9%) received ECPR. 83% of surviving infants had follow-up data. Demographic and outcomes data are summarized below in Table 1 and 2 respectively.
CONCLUSION: In very preterm neonates, ECPR was associated with increased risk of death or neurodevelopmental impairment and lower motor scores at 18-21 months CA.
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33
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Dorman TA, Cohen RE, Dasig D, Jeng S, Fischer N, de Jong A. Energy Efficiency During Human Walking Before and After Prolotherapy. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/1355297x.1995.11719775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Kollek M, Voigt G, Bertele D, Krombholz F, Fischer N, Niemeyer C, Geley S, Garcia-Saez A, Erlacher M. Transient apoptosis inhibition in hematopoietic stem and progenitor cells of donors increases efficacy of stem cell transplantation without increasing the risk of leukemogenesis. Klin Padiatr 2016. [DOI: 10.1055/s-0036-1582501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Fischer N, Gieseke S, Kluth S, Plätzer S, Skands P. Measurement of parton shower observables with OPAL. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201612005001] [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: 11/14/2022] Open
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36
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Fischer N, Church P, Lyons J, McPherson AC. A qualitative exploration of the experiences of children with spina bifida and their parents around incontinence and social participation. Child Care Health Dev 2015; 41:954-62. [PMID: 26010416 DOI: 10.1111/cch.12257] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 03/16/2015] [Accepted: 03/29/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND Urinary incontinence is frequently experienced by children with spina bifida, putting them at increased risk for low self-esteem and impacting upon participation in home, school and leisure activities. However, little is known about children's experiences of these continence issues. OBJECTIVE This study explored the experiences of children and young people with spina bifida around continence issues, social participation and peer relationships, in order to identify potential areas of support healthcare professionals can provide. METHODS Children and youth aged 6-18 years with diagnoses of spina bifida and neurogenic bladder and their parents were invited to participate in semi-structured interviews. Descriptive thematic analysis was employed. RESULTS Eleven children (with a range of mobility levels, types of spina bifida and degrees of bladder control) and their parents participated in the study. Three broad themes were identified, which encompassed the following: (1) normal versus different; (2) independence, ownership and the road to continence; and (3) peer relationships and acceptance. DISCUSSION The experiences discussed by the children and parents in this study ranged from minimal impact of incontinence on their day-to-day living to significant social isolation and rejection. The stigma of incontinence was apparent in all interviews. Children and youth who were able to control their bladder with minimal accidents had greater independence and more opportunities for social participation. Healthcare professionals need to take into account that parents and their children may differ in attitudes and desires about the management of incontinence.
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Affiliation(s)
- N Fischer
- Department of Pediatrics, University of Calgary, AB, Canada
| | - P Church
- Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - J Lyons
- Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - A C McPherson
- Bloorview Research Institute, Toronto, ON, Canada.,Dalla Lana School of Public Health and Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada
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37
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Vinnemeier CD, Klupp EM, Krumkamp R, Rolling T, Fischer N, Owusu-Dabo E, Addo MM, Adu-Sarkodie Y, Käsmaier J, Aepfelbacher M, Cramer JP, May J, Tannich E. Tropheryma whipplei in children with diarrhoea in rural Ghana. Clin Microbiol Infect 2015; 22:65.e1-65.e3. [PMID: 26456475 DOI: 10.1016/j.cmi.2015.09.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 08/24/2015] [Accepted: 09/24/2015] [Indexed: 11/29/2022]
Abstract
Tropheryma whipplei has been hypothesized to be able to cause diarrhoea, but data from young children are scarce. In this hospital-based case-control study 534 stool samples of children aged between 2 months and 15 years from rural Ghana were analysed for the presence of T. whipplei. Overall stool prevalence of T. whipplei was high (27.5%). Although there was no difference in T. whipplei carriage overall between cases and controls, cases aged between 0 and 12 months carried T. whipplei in their stool twice as often as controls without diarrhoea. The results from this study may support the hypothesis that T. whipplei can cause diarrhoea in first-time infection.
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Affiliation(s)
- C D Vinnemeier
- I. Department of Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Clinical Research Group, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany.
| | - E M Klupp
- Department for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - R Krumkamp
- Infectious Diseases Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - T Rolling
- I. Department of Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Clinical Research Group, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - N Fischer
- Department for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - E Owusu-Dabo
- Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana
| | - M M Addo
- I. Department of Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Y Adu-Sarkodie
- Faculty of Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - J Käsmaier
- Molecular Parasitology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - M Aepfelbacher
- Department for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - J P Cramer
- I. Department of Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Takeda Pharmaceuticals, Vaccine Business Unit, Zurich, Switzerland
| | - J May
- Infectious Diseases Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - E Tannich
- Molecular Parasitology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
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38
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Kollek M, Voigt G, Bertele D, Garcia A, Krombholz F, Fischer N, Niemeyer C, Geley S, Erlacher M. Identification of compounds protecting donor stem cells from apoptosis and increasing efficacy of hematopoietic stem cell transplantation. Klin Padiatr 2015. [DOI: 10.1055/s-0035-1550256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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Scheuern A, Fischer N, Haas JP, Hugle B. SAT0496 Countermeasures Against Methotrexate Intolerance in Juvenile Idiopathic Arthritis Instituted by Parents Show no Effect: Table 1. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1955] [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: 11/04/2022]
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40
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Scheuern A, Fischer N, Haas JP, Hugle B. THU0501 Mutations in the Mthfr Gene are not Associated with Methotrexate Intolerance in Patients with Juvenile Idiopathic Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1954] [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: 11/04/2022]
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41
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Schuster M, Thanos C, Fischer N, Pahl A. PepTalk 2015 - CHI's 14th Annual Meeting - The Protein Science Week, Protein Engineering and Development. San Diego, California, USA - January 19-23, 2015. DRUG FUTURE 2015. [DOI: 10.1358/dof.2015.040.03.2297180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Fischer N, Pinggera L, Weichbold V, Dejaco D, Schmutzhard J, Widmann G. Radiologic and functional evaluation of electrode dislocation from the scala tympani to the scala vestibuli in patients with cochlear implants. AJNR Am J Neuroradiol 2014; 36:372-7. [PMID: 25430856 DOI: 10.3174/ajnr.a4189] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Localization of the electrode after cochlear implantation seems to have an impact on auditory outcome, and conebeam CT has emerged as a reliable method for visualizing the electrode array position within the cochlea. The aim of this retrospective study was to evaluate the frequency and clinical impact of scalar dislocation of various electrodes and surgical approaches and to evaluate its influence on auditory outcome. MATERIALS AND METHODS This retrospective single-center study analyzed a consecutive series of 63 cochlear implantations with various straight electrodes. The placement of the electrode array was evaluated by using multiplanar reconstructed conebeam CT images. For the auditory outcome, we compared the aided hearing thresholds and the charge units of maximum comfortable loudness level at weeks 6, 12, and 24 after implantation. RESULTS In 7.9% of the cases, the electrode array showed scalar dislocation. In all cases, the electrode array penetrated the basal membrane within 45° of the electrode insertion. All 3 cases of cochleostomy were dislocated in the first 45° segment. No hearing differences were noted, but the charge units of maximum comfortable loudness level seemed to increase with time in patients with dislocations. CONCLUSIONS The intracochlear dislocation rate of various straight electrodes detected by conebeam CT images is relatively low. Scalar dislocation may not negatively influence the hearing threshold but may require an increase of the necessary stimulus charge and should be reported by the radiologist.
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Affiliation(s)
- N Fischer
- From the Departments of Otorhinolaryngology (N.F., L.P., D.D., J.S.)
| | - L Pinggera
- From the Departments of Otorhinolaryngology (N.F., L.P., D.D., J.S.)
| | | | - D Dejaco
- From the Departments of Otorhinolaryngology (N.F., L.P., D.D., J.S.)
| | - J Schmutzhard
- From the Departments of Otorhinolaryngology (N.F., L.P., D.D., J.S.)
| | - G Widmann
- Radiology (G.W.), Medical University Innsbruck, Innsbruck, Austria
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Fischer N, Clapham B, Feltes T, Claeys M. Cobalt-Based Fischer–Tropsch Activity and Selectivity as a Function of Crystallite Size and Water Partial Pressure. ACS Catal 2014. [DOI: 10.1021/cs500936t] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- N. Fischer
- Centre
for Catalysis Research
and c*change (DST-NRF Centre of Excellence in Catalysis), Department
of Chemical Engineering, University of Cape Town, Cape Town 7701, South Africa
| | - B. Clapham
- Centre
for Catalysis Research
and c*change (DST-NRF Centre of Excellence in Catalysis), Department
of Chemical Engineering, University of Cape Town, Cape Town 7701, South Africa
| | - T. Feltes
- Centre
for Catalysis Research
and c*change (DST-NRF Centre of Excellence in Catalysis), Department
of Chemical Engineering, University of Cape Town, Cape Town 7701, South Africa
| | - M. Claeys
- Centre
for Catalysis Research
and c*change (DST-NRF Centre of Excellence in Catalysis), Department
of Chemical Engineering, University of Cape Town, Cape Town 7701, South Africa
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45
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Mainz J, Hentschel J, Fischer N, Markert U, Böer K, Pfister W, Doht F. 108 Reduced effect of intravenous antibiotic treatment on sinonasal compared to pulmonary inflammatory markers. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60244-7] [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: 11/25/2022]
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46
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Hentschel J, Fischer N, Markert U, Sonnemann J, Böer K, Pfister W, Hipler UC, Mainz J. WS19.6 Inverse protease–antiprotease relation in upper and lower airway secretions of cystic fibrosis patients. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60119-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Kollek M, Voigt G, Bertele D, Garcia A, Maurer U, Krombholz F, Labi V, Fischer N, Niemeyer C, Geley S, Villunger A, Erlacher M. Transient apoptosis inhibition in donor cells increases efficacy of hematopoietic stem cell transplantation without increasing the risk of leukemogenesis. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1374838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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49
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Fischer N, Kaufmann P, Bruderer S, Ulč I, Dingemanse J. PP194—Pharmacokinetics of Selexipag in Subjects with Mild, Moderate, or Severe Hepatic Impairment Compared with Healthy Subjects. Clin Ther 2013. [DOI: 10.1016/j.clinthera.2013.07.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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50
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Hugle B, Olsson M, Fischer N, Herrmann M, Lindblad-Toh K, Haas JP. SAT0433 Hyaluronic Acid is a Marker of Active Arthritis, but not Systemic Inflammation in Systemic Juvenile Idiopathic Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2157] [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: 11/03/2022]
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