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Pöpplau JA, Schwarze T, Dorofeikova M, Pochinok I, Günther A, Marquardt A, Hanganu-Opatz IL. Reorganization of adolescent prefrontal cortex circuitry is required for mouse cognitive maturation. Neuron 2024; 112:421-440.e7. [PMID: 37979584 PMCID: PMC10855252 DOI: 10.1016/j.neuron.2023.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 08/31/2023] [Accepted: 10/19/2023] [Indexed: 11/20/2023]
Abstract
Most cognitive functions involving the prefrontal cortex emerge during late development. Increasing evidence links this delayed maturation to the protracted timeline of prefrontal development, which likely does not reach full maturity before the end of adolescence. However, the underlying mechanisms that drive the emergence and fine-tuning of cognitive abilities during adolescence, caused by circuit wiring, are still unknown. Here, we continuously monitored prefrontal activity throughout the postnatal development of mice and showed that an initial activity increase was interrupted by an extensive microglia-mediated breakdown of activity, followed by the rewiring of circuit elements to achieve adult-like patterns and synchrony. Interfering with these processes during adolescence, but not adulthood, led to a long-lasting microglia-induced disruption of prefrontal activity and neuronal morphology and decreased cognitive abilities. These results identified a nonlinear reorganization of prefrontal circuits during adolescence and revealed its importance for adult network function and cognitive processing.
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Affiliation(s)
- Jastyn A Pöpplau
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology, Hamburg Center of Neuroscience (HCNS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Timo Schwarze
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology, Hamburg Center of Neuroscience (HCNS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mariia Dorofeikova
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology, Hamburg Center of Neuroscience (HCNS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Irina Pochinok
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology, Hamburg Center of Neuroscience (HCNS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anne Günther
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology, Hamburg Center of Neuroscience (HCNS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Annette Marquardt
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology, Hamburg Center of Neuroscience (HCNS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ileana L Hanganu-Opatz
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology, Hamburg Center of Neuroscience (HCNS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Lu L, Zhang F, Oude Munnink BB, Munger E, Sikkema RS, Pappa S, Tsioka K, Sinigaglia A, Dal Molin E, Shih BB, Günther A, Pohlmann A, Ziegler U, Beer M, Taylor RA, Bartumeus F, Woolhouse M, Aarestrup FM, Barzon L, Papa A, Lycett S, Koopmans MPG. West Nile virus spread in Europe: Phylogeographic pattern analysis and key drivers. PLoS Pathog 2024; 20:e1011880. [PMID: 38271294 PMCID: PMC10810478 DOI: 10.1371/journal.ppat.1011880] [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: 03/02/2023] [Accepted: 12/04/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND West Nile virus (WNV) outbreaks in birds, humans, and livestock have occurred in multiple areas in Europe and have had a significant impact on animal and human health. The patterns of emergence and spread of WNV in Europe are very different from those in the US and understanding these are important for guiding preparedness activities. METHODS We mapped the evolution and spread history of WNV in Europe by incorporating viral genome sequences and epidemiological data into phylodynamic models. Spatially explicit phylogeographic models were developed to explore the possible contribution of different drivers to viral dispersal direction and velocity. A "skygrid-GLM" approach was used to identify how changes in environments would predict viral genetic diversity variations over time. FINDINGS Among the six lineages found in Europe, WNV-2a (a sub-lineage of WNV-2) has been predominant (accounting for 73% of all sequences obtained in Europe that have been shared in the public domain) and has spread to at least 14 countries. In the past two decades, WNV-2a has evolved into two major co-circulating clusters, both originating from Central Europe, but with distinct dynamic history and transmission patterns. WNV-2a spreads at a high dispersal velocity (88km/yr-215 km/yr) which is correlated to bird movements. Notably, amongst multiple drivers that could affect the spread of WNV, factors related to land use were found to strongly influence the spread of WNV. Specifically, the intensity of agricultural activities (defined by factors related to crops and livestock production, such as coverage of cropland, pasture, cultivated and managed vegetation, livestock density) were positively associated with both spread direction and velocity. In addition, WNV spread direction was associated with high coverage of wetlands and migratory bird flyways. CONCLUSION Our results suggest that-in addition to ecological conditions favouring bird- and mosquito- presence-agricultural land use may be a significant driver of WNV emergence and spread. Our study also identified significant gaps in data and the need to strengthen virological surveillance in countries of Central Europe from where WNV outbreaks are likely seeded. Enhanced monitoring for early detection of further dispersal could be targeted to areas with high agricultural activities and habitats of migratory birds.
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Affiliation(s)
- Lu Lu
- Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Feifei Zhang
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Bas B. Oude Munnink
- Erasmus MC, Viroscience and Pandemic and Disaster Preparedness Centre, Rotterdam, the Netherlands
| | - Emmanuelle Munger
- Erasmus MC, Viroscience and Pandemic and Disaster Preparedness Centre, Rotterdam, the Netherlands
| | - Reina S. Sikkema
- Erasmus MC, Viroscience and Pandemic and Disaster Preparedness Centre, Rotterdam, the Netherlands
| | - Styliani Pappa
- Department of Microbiology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Tsioka
- Department of Microbiology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Barbara B. Shih
- Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Anne Günther
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Riems, Germany
| | - Anne Pohlmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Riems, Germany
| | - Ute Ziegler
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Greifswald-Riems, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Riems, Germany
| | - Rachel A. Taylor
- Department of Epidemiological Sciences, Animal and Plant Health Agency, United Kingdom
| | - Frederic Bartumeus
- Centre for Advanced Studies of Blanes (CEAB-CSIC), Girona, Spain
- Centre for Research on Ecology and Forestry Applications (CREAF), Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Mark Woolhouse
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Frank M. Aarestrup
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Luisa Barzon
- Department of Molecular Medicine, University of Padova, Padua, Italy
| | - Anna Papa
- Department of Microbiology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Samantha Lycett
- Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Marion P. G. Koopmans
- Erasmus MC, Viroscience and Pandemic and Disaster Preparedness Centre, Rotterdam, the Netherlands
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3
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Schoene D, Hartmann C, Winzer S, Moustafa H, Günther A, Puetz V, Barlinn K. [Postoperative management following decompressive hemicraniectomy for malignant middle cerebral artery infarction-A German nationwide survey study]. Nervenarzt 2023; 94:934-943. [PMID: 37140605 PMCID: PMC10157548 DOI: 10.1007/s00115-023-01486-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/26/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Malignant middle cerebral artery infarction is a potentially life-threatening disease. Decompressive hemicraniectomy constitutes an evidence-based treatment practice, especially in patients under 60 years of age; however, recommendations with respect to postoperative management and particularly duration of postoperative sedation lack standardization. OBJECTIVE This survey study aimed to analyze the current situation of patients with malignant middle cerebral artery infarction following hemicraniectomy in the neurointensive care setting. MATERIAL AND METHODS From 20 September 2021 to 31 October 2021, 43 members of the initiative of German neurointensive trial engagement (IGNITE) network were invited to participate in a standardized anonymous online survey. Descriptive data analysis was performed. RESULTS Out of 43 centers 29 (67.4%) participated in the survey, including 24 university hospitals. Of the hospitals 21 have their own neurological intensive care unit. While 23.1% favored a standardized approach regarding postoperative sedation, the majority utilized individual criteria (e.g., intracranial pressure increase, weaning parameters, complications) to assess the need and duration. The timing of targeted extubation varied widely between hospitals (≤ 24 h 19.2%, ≤ 3 days in 30.8%, ≤ 5 days in 19.2%, > 5 days in 15.4%). Early tracheotomy (≤ 7 days) is performed in 19.2% and 80.8% of the centers aim for tracheotomy within 14 days. Hyperosmolar treatment is used on a regular basis in 53.9% and 22 centers (84.6%) agreed to participate in a clinical trial addressing the duration of postoperative sedation and ventilation. CONCLUSION The results of this nationwide survey among neurointensive care units in Germany reflect a remarkable heterogeneity in the treatment practices of patients with malignant middle cerebral artery infarction undergoing hemicraniectomy, especially with respect to the duration of postoperative sedation and ventilation. A randomized trial in this matter seems warranted.
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Affiliation(s)
- D Schoene
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland.
- Dresdner Neurovaskuläres Centrum, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Deutschland.
| | - C Hartmann
- Institut und Poliklinik für Diagnostische und Interventionelle Neuroradiologie, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Deutschland
| | - S Winzer
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
- Dresdner Neurovaskuläres Centrum, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Deutschland
| | - H Moustafa
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
- Dresdner Neurovaskuläres Centrum, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Deutschland
| | - A Günther
- Klinik für Neurologie, Universitätsklinikum Jena, Jena, Deutschland
| | - V Puetz
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
- Dresdner Neurovaskuläres Centrum, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Deutschland
| | - K Barlinn
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
- Dresdner Neurovaskuläres Centrum, Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Deutschland
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Günther A, Pohlmann A, Globig A, Ziegler U, Calvelage S, Keller M, Fischer D, Staubach C, Groschup M, Harder T, Beer M. Continuous surveillance of potentially zoonotic avian pathogens detects contemporaneous occurrence of highly pathogenic avian influenza viruses (HPAIV H5) and flaviviruses (USUV, WNV) in several wild and captive birds. Emerg Microbes Infect 2023:2231561. [PMID: 37381816 DOI: 10.1080/22221751.2023.2231561] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Three avian viral pathogens circulate in Germany with particular importance for animal disease surveillance due to their zoonotic potential, their impact on wild bird populations and/or poultry farms: Highly pathogenic (HP) avian influenza virus (AIV) of subtype H5 (HPAIV H5), Usutu Virus (USUV), and West Nile Virus (WNV). Whereas HPAIV H5 has been mainly related to epizootic outbreaks in winter, the arthropod-borne viruses USUV and WNV have been detected more frequently during summer months corresponding to peak mosquito activity. Since 2021, tendencies of a potentially year-round, i.e. enzootic, status of HPAIV in Germany have raised concerns that Orthomyxoviruses (AIV) and Flaviviruses (USUV, WNV) may not only circulate in the same region, but also at the same time and in the same avian host range. In search of a host species group suitable for a combined surveillance approach for all mentioned pathogens, we retrospectively screened and summarized case reports, mainly provided by the respective German National Reference Laboratories (NRLs) from 2006-2021. Our dataset revealed an overlap of reported infections among nine avian genera. We identified raptors as a particularly affected host group, as the genera Accipiter, Bubo, Buteo, Falco and Strix represented five of the nine genera, and highlighted their role in passive surveillance. This study may provide a basis for broader, pan-European studies that could deepen our understanding of reservoir and vector species, as HPAIV, USUV and WNV are expected to further become established and/or spread in Europe in the future and thus improved surveillance measures are of high importance.
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Affiliation(s)
- Anne Günther
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Anne Pohlmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Anja Globig
- Institute of International Animal Health/One Health, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Ute Ziegler
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Sten Calvelage
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Markus Keller
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Dominik Fischer
- Der Gruene Zoo Wuppertal, Hubertusallee 30, 42117 Wuppertal, Germany
| | - Christoph Staubach
- Institute of Epidemiology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Martin Groschup
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Timm Harder
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
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Kopycinska-Müller M, Schreiber L, Schwarzer-Fischer E, Günther A, Phillips C, Moritz T, Opitz J, Choi YJ, Yun HS. Signal-Decay Based Approach for Visualization of Buried Defects in 3-D Printed Ceramic Components Imaged with Help of Optical Coherence Tomography. Materials (Basel) 2023; 16:ma16103607. [PMID: 37241233 DOI: 10.3390/ma16103607] [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] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023]
Abstract
We propose the use of Optical Coherence Tomography (OCT) as a tool for the quality control of 3-D-printed ceramics. Test samples with premeditated defects, namely single- and two-component samples of zirconia, titania, and titanium suboxides, were printed by stereolithography-based DLP (Digital Light Processing) processes. The OCT tomograms obtained on the green samples showed the capability of the method to visualize variations in the layered structure of the samples as well as the presence of cracks and inclusions at depths up to 130 µm, as validated by SEM images. The structural information was visible in cross-sectional images as well as in plan-view images. The optical signal measured from the printed zirconia oxide and titanium oxide samples showed strong attenuation with depth and could be fit with an exponential decay curve. The variations of the decay parameter correlated very well with the presence of defects and material variation. When used as an imaging quantity, the decay parameter projects the position of the defects into 2-D (X,Y) coordinates. This procedure can be used in real time, it reduces the data volume up to 1000 times, and allows for faster subsequent data analysis and transfer. Tomograms were also obtained on sintered samples. The results showed that the method can detect changes in the optical properties of the green ceramics caused by sintering. Specifically, the zirconium oxide samples became more transparent to the light used, whereas the titanium suboxide samples became entirely opaque. In addition, the optical response of the sintered zirconium oxide showed variations within the imaged volume, indicating material density variations. The results presented in this study show that OCT provides sufficient structural information on 3-D-printed ceramics and can be used as an in-line tool for quality control.
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Affiliation(s)
| | - Luise Schreiber
- Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01277 Dresden, Germany
| | - Eric Schwarzer-Fischer
- Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01277 Dresden, Germany
| | - Anne Günther
- Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01277 Dresden, Germany
| | - Conner Phillips
- Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01277 Dresden, Germany
| | - Tassilo Moritz
- Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01277 Dresden, Germany
| | - Jörg Opitz
- Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01277 Dresden, Germany
| | - Yeong-Jin Choi
- Korea Institute of Materials Science (KIMS), Changwon-si 51508, Republic of Korea
| | - Hui-Suk Yun
- Korea Institute of Materials Science (KIMS), Changwon-si 51508, Republic of Korea
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Pohlmann A, Stejskal O, King J, Bouwhuis S, Packmor F, Ballstaedt E, Hälterlein B, Hennig V, Stacker L, Graaf A, Hennig C, Günther A, Liang Y, Hjulsager C, Beer M, Harder T. Mass mortality among colony-breeding seabirds in the German Wadden Sea in 2022 due to distinct genotypes of HPAIV H5N1 clade 2.3.4.4b. J Gen Virol 2023; 104. [PMID: 37014781 DOI: 10.1099/jgv.0.001834] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Mass mortality was observed among colony-breeding seabirds in the German Wadden Sea area of the North Sea during the summer months of 2022. Several species' colonies were affected, most notably sandwich terns (Thalasseus sandvicensis), common terns (Sterna hirundo) and Germany's only northern gannet (Morus bassanus) colony on the island of Heligoland. Mortality in some tern colonies reached 40%, while other colonies were almost spared. In all cases, infections with the high-pathogenicity avian influenza virus (HPAIV) subtype H5N1 of clade 2.3.4.4b were identified to have caused the epidemic. Phylogenetic analysis of whole-genome sequences revealed that the outbreaks were dominated by two genotypes, Ger-10-21 N1.2 and Ger-10-21 N1.5, previously identified in Germany. Spatiotemporal analyses of phylogenetic data suggested that these viruses could have entered the continental North Sea coastal region via the British Isles. A close linkage of viruses from tern colonies in the German Wadden Sea was evident with further connections to breeding colonies in Belgium and the Netherlands, and further spread to Denmark and Poland. Several of the affected species are endangered, such that negative effects of epizootic HPAIV infections on populations are feared, with uncertain long-term consequences.
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Affiliation(s)
- Anne Pohlmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | - Ole Stejskal
- Niedersächsisches Landesamt für Verbraucherschutz und Lebensmittelsicherheit, Dezernat 32 - Task-Force Veterinärwesen Postfach 39 49, 26029, Oldenburg, Germany
| | - Jacqueline King
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | - Sandra Bouwhuis
- Institute of Avian Research, An der Vogelwarte 21, 26386, Wilhelmshaven, Germany
| | - Florian Packmor
- Lower Saxon Wadden Sea National Park Authority, Virchowstr. 1, 26382, Wilhelmshaven, Germany
| | - Elmar Ballstaedt
- Verein Jordsand zum Schutz der Seevögel und der Natur e. V., Bornkampsweg Ahrensburg 35, 22926, Germany
| | - Bernd Hälterlein
- Schleswig-Holstein Wadden Sea National Park Administration, Schlossgarten 1, 25832, Toenning, Germany
| | - Veit Hennig
- Universitäty of Hamburg, Institute of Cell and Systems Biology of Animals, Animal Ecology and Conservation, Martin-Luther-King-Platz 3, 20146, Hamburg, Germany
| | - Lina Stacker
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | - Annika Graaf
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | - Christin Hennig
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | - Anne Günther
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | - Yuan Liang
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Charlotte Hjulsager
- Department for Virus and Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | - Timm Harder
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald-Insel Riems, Germany
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7
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Barker M, Günther A, Wurps H, Gebhardt A, Schönfeld N, Polsfuss S, Bauer TT. Ultrasound-guided lymph node biopsy in smear-negative children and adolescents with suspected TB. Int J Tuberc Lung Dis 2023; 27:164-165. [PMID: 36853115 DOI: 10.5588/ijtld.22.0364] [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: 01/26/2023] Open
Affiliation(s)
- M Barker
- Department of Paediatrics, Helios Klinikum Emil von Behring, Berlin, Germany
| | - A Günther
- Department of Paediatrics, Helios Klinikum Emil von Behring, Berlin, Germany
| | - H Wurps
- Department of Respiratory Medicine, Heckeshorn Lung Unit, Helios Klinikum Emil von Behring, Berlin, Germany
| | - A Gebhardt
- Department of Respiratory Medicine, Heckeshorn Lung Unit, Helios Klinikum Emil von Behring, Berlin, Germany
| | - N Schönfeld
- Department of Respiratory Medicine, Heckeshorn Lung Unit, Helios Klinikum Emil von Behring, Berlin, Germany
| | - S Polsfuss
- Institute for Microbiology, Immunology and Laboratory Medicine, Helios Klinikum Emil von Behring, Berlin, Germany
| | - T T Bauer
- Department of Respiratory Medicine, Heckeshorn Lung Unit, Helios Klinikum Emil von Behring, Berlin, Germany, German Central Committee for the Fight against Tuberculosis (DZK), Berlin, Germany
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8
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Santos PD, Günther A, Keller M, Homeier-Bachmann T, Groschup MH, Beer M, Höper D, Ziegler U. An advanced sequence clustering and designation workflow reveals the enzootic maintenance of a dominant West Nile virus subclade in Germany. Virus Evol 2023; 9:vead013. [PMID: 37197362 PMCID: PMC10184446 DOI: 10.1093/ve/vead013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 01/13/2023] [Accepted: 03/16/2023] [Indexed: 05/19/2023] Open
Abstract
West Nile virus (WNV) is the most widespread arthropod-borne (arbo) virus and the primary cause of arboviral encephalitis globally. Members of WNV species genetically diverged and are classified into different hierarchical groups below species rank. However, the demarcation criteria for allocating WNV sequences into these groups remain individual and inconsistent, and the use of names for different levels of the hierarchical levels is unstructured. In order to have an objective and comprehensible grouping of WNV sequences, we developed an advanced grouping workflow using the 'affinity propagation clustering' algorithm and newly included the 'agglomerative hierarchical clustering' algorithm for the allocation of WNV sequences into different groups below species rank. In addition, we propose to use a fixed set of terms for the hierarchical naming of WNV below species level and a clear decimal numbering system to label the determined groups. For validation, we applied the refined workflow to WNV sequences that have been previously grouped into various lineages, clades, and clusters in other studies. Although our workflow regrouped some WNV sequences, overall, it generally corresponds with previous groupings. We employed our novel approach to the sequences from the WNV circulation in Germany 2020, primarily from WNV-infected birds and horses. Besides two newly defined minor (sub)clusters comprising only three sequences each, Subcluster 2.5.3.4.3c was the predominant WNV sequence group detected in Germany from 2018 to 2020. This predominant subcluster was also associated with at least five human WNV infections in 2019-20. In summary, our analyses imply that the genetic diversity of the WNV population in Germany is shaped by enzootic maintenance of the dominant WNV subcluster accompanied by sporadic incursions of other rare clusters and subclusters. Moreover, we show that our refined approach for sequence grouping yields meaningful results. Although we primarily aimed at a more detailed WNV classification, the presented workflow can also be applied to the objective genotyping of other virus species.
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Affiliation(s)
| | | | - Markus Keller
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, 17493, Greifswald-Insel Riems, Germany
| | | | - Martin H Groschup
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, 17493, Greifswald-Insel Riems, Germany
- German Centre for Infection Research, Partner site Hamburg-Lübeck-Borstel-Riems, 17493, Greifswald-Insel Riems, Germany
| | - Martin Beer
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Diagnostic Virology, 17493, Greifswald-Insel Riems, Germany
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9
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Günther A, Hanganu-Opatz IL. Neuronal oscillations: early biomarkers of psychiatric disease? Front Behav Neurosci 2022; 16:1038981. [PMID: 36600993 PMCID: PMC9806131 DOI: 10.3389/fnbeh.2022.1038981] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/09/2022] [Indexed: 12/23/2022] Open
Abstract
Our understanding of the environmental and genetic factors contributing to the wide spectrum of neuropsychiatric disorders has significantly increased in recent years. Impairment of neuronal network activity during early development has been suggested as a contributor to the emergence of neuropsychiatric pathologies later in life. Still, the neurobiological substrates underlying these disorders remain yet to be fully understood and the lack of biomarkers for early diagnosis has impeded research into curative treatment options. Here, we briefly review current knowledge on potential biomarkers for emerging neuropsychiatric disease. Moreover, we summarize recent findings on aberrant activity patterns in the context of psychiatric disease, with a particular focus on their potential as early biomarkers of neuropathologies, an essential step towards pre-symptomatic diagnosis and, thus, early intervention.
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10
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Herfurth K, Ruhe J, Kentouche K, Günther A, Brämer D, Eckardt N, Busch M, Wolf G. [Refractory thrombotic thrombocytopenic purpura]. Inn Med (Heidelb) 2022; 63:1307-1311. [PMID: 36194294 PMCID: PMC9531628 DOI: 10.1007/s00108-022-01408-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 09/02/2022] [Indexed: 10/31/2022]
Abstract
Thrombotic thrombocytopenic purpura (TTP) remains a serious illness with potentially life-threatening complications. The following case of a TTP patient describes a serious relapse with exacerbation in spite of adequately initiated therapy and highlights the necessity of interdisciplinary expertise in the treatment of the disease.
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Affiliation(s)
- K Herfurth
- Klinik für Innere Medizin III, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland.
| | - J Ruhe
- Klinik für Innere Medizin III, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland
| | - K Kentouche
- Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Jena, Jena, Deutschland
| | - A Günther
- Hans-Berger-Klinik für Neurologie, Universitätsklinikum Jena, Jena, Deutschland
| | - D Brämer
- Hans-Berger-Klinik für Neurologie, Universitätsklinikum Jena, Jena, Deutschland
| | - N Eckardt
- Institut für Interventionelle und Diagnostische Radiologie, Abt. Neuroradiologie, Universitätsklinikum Jena, Jena, Deutschland
| | - M Busch
- Klinik für Innere Medizin III, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland
| | - G Wolf
- Klinik für Innere Medizin III, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland
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11
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Günther A, Krone O, Svansson V, Pohlmann A, King J, Hallgrimsson GT, Skarphéðinsson KH, Sigurðardóttir H, Jónsson SR, Beer M, Brugger B, Harder T. Iceland as Stepping Stone for Spread of Highly Pathogenic Avian Influenza Virus between Europe and North America. Emerg Infect Dis 2022; 28:2383-2388. [PMID: 36261139 PMCID: PMC9707596 DOI: 10.3201/eid2812.221086] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/14/2023] Open
Abstract
Highly pathogenic avian influenza viruses (HPAIVs) of hemagglutinin type H5 and clade 2.3.4.4b have widely spread within the northern hemisphere since 2020 and threaten wild bird populations, as well as poultry production. We present phylogeographic evidence that Iceland has been used as a stepping stone for HPAIV translocation from northern Europe to North America by infected but mobile wild birds. At least 2 independent incursions of HPAIV H5N1 clade 2.3.4.4b assigned to 2 hemagglutinin clusters, B1 and B2, are documented for summer‒autumn 2021 and spring 2022. Spread of HPAIV H5N1 to and among colony-breeding pelagic avian species in Iceland is ongoing. Potentially devastating effects (i.e., local losses >25%) on these species caused by extended HPAIV circulation in space and time are being observed at several affected breeding sites throughout the North Atlantic.
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12
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Liu C, Günther A, Deng Y, Kaletsch A, Herrmann M, Broeckmann C. Investigation on the Curvature and Stress Distribution of Laminates Based on an Analytic Solution and FE Simulation. Materials (Basel) 2022; 15:6458. [PMID: 36143768 PMCID: PMC9501945 DOI: 10.3390/ma15186458] [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: 06/02/2022] [Revised: 08/28/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
The potential combinations of favorable properties give metal-ceramic laminates (MCLs) a high degree of application flexibility. However, the different thermal expansion coefficients (CTEs) and shrinkage rates of the metals and ceramics during the co-sintering process often lead to large internal stresses that cause undesired deformation or even production failures. In practice, the identification of manufacturable MCLs relies on the "trial and error" principle, which usually requires a long development period. Therefore, there is a great demand for analytic and numerical methods that allow the prediction of the deformation and manufacturability of MCLs during the co-sintering process. The main objective of this study is to investigate the curvature and stress distribution in the MCLs (steel 17-4PH/ ceramic 3Y-TZP) based on the analytic solution and finite element (FE) simulation. To achieve this, the Young's moduli (E) and shear moduli (G) at high temperatures and the CTEs of both materials were measured. In addition, the curvatures and stress distributions of the two-layer and three-layer laminates were obtained based on the analytic method and FE simulation, which were in very good agreement. Furthermore, the influence of the CTE, Young's modulus, height ratio, and interface on the curvature were studied. The results showed that the CTE and height ratio have a higher influence on the curvature in comparison to the Young's modulus. The interface prevents the curvature significantly by assuming it to be a cohesive surface in the FE simulation. This provides hints to avoid delamination during the manufacturing process.
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Affiliation(s)
- Chao Liu
- Institute for Materials Applications in Mechanical Engineering (IWM), RWTH Aachen, 52062 Aachen, Germany
| | - Anne Günther
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, 01277 Dresden, Germany
| | - Yuanbin Deng
- Institute for Materials Applications in Mechanical Engineering (IWM), RWTH Aachen, 52062 Aachen, Germany
| | - Anke Kaletsch
- Institute for Materials Applications in Mechanical Engineering (IWM), RWTH Aachen, 52062 Aachen, Germany
| | - Mathias Herrmann
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, 01277 Dresden, Germany
| | - Christoph Broeckmann
- Institute for Materials Applications in Mechanical Engineering (IWM), RWTH Aachen, 52062 Aachen, Germany
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13
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Günther A, Hose M, Abberger H, Schumacher F, Veith Y, Kleuser B, Matuschewski K, Lang KS, Gulbins E, Buer J, Westendorf A, Hansen W. The acid ceramidase/ceramide axis controls parasitemia in Plasmodium yoelii-infected mice by regulating erythropoiesis. eLife 2022; 11:77975. [PMID: 36094170 PMCID: PMC9499531 DOI: 10.7554/elife.77975] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 09/09/2022] [Indexed: 11/13/2022] Open
Abstract
Acid ceramidase (Ac) is part of the sphingolipid metabolism and responsible for the degradation of ceramide. As bioactive molecule, ceramide is involved in the regulation of many cellular processes. However, the impact of cell-intrinsic Ac activity and ceramide on the course of Plasmodium infection remains elusive. Here, we use Ac-deficient mice with ubiquitously increased ceramide levels to elucidate the role of endogenous Ac activity in a murine malaria model. Interestingly, ablation of Ac leads to alleviated parasitemia associated with decreased T cell responses in the early phase of Plasmodium yoelii infection. Mechanistically, we identified dysregulated erythropoiesis with reduced numbers of reticulocytes, the preferred host cells of P. yoelii, in Ac-deficient mice. Furthermore, we demonstrate that administration of the Ac inhibitor carmofur to wildtype mice has similar effects on P. yoelii infection and erythropoiesis. Notably, therapeutic carmofur treatment after manifestation of P. yoelii infection is efficient in reducing parasitemia. Hence, our results provide evidence for the involvement of Ac and ceramide in controlling P. yoelii infection by regulating red blood cell development.
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Affiliation(s)
- Anne Günther
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | - Matthias Hose
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | - Hanna Abberger
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | | | - Ylva Veith
- Institute of Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Burkhard Kleuser
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Kai Matuschewski
- Institute of Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - Erich Gulbins
- Institute of Molecular Biology, University of Duisburg-Essen, Essen, Germany
| | - Jan Buer
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | - Astrid Westendorf
- Institute of Medical Microbiology, University of Duisburg-Essen, Duisburg, Germany
| | - Wiebke Hansen
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
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14
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King J, Harder T, Globig A, Stacker L, Günther A, Grund C, Beer M, Pohlmann A. Highly Pathogenic Avian Influenza Virus Incursions of Subtype H5N8, H5N5, H5N1, H5N4 and H5N3 in Germany during 2020-2021. Virus Evol 2022; 8:veac035. [PMID: 35478715 PMCID: PMC9037367 DOI: 10.1093/ve/veac035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/28/2022] [Accepted: 04/13/2022] [Indexed: 12/02/2022] Open
Abstract
From October 2020 to July 2021, five different subtypes (H5N8, H5N5, H5N1, H5N4, and H5N3) and seven genotypes of highly pathogenic avian influenza viruses (HPAIV) belonging to clade 2.3.4.4b were detected in a broad array of avian hosts in Germany. Initial incursion by wild birds with an unprecedented involvement of charadriiforme species at the Wadden Sea coast only carrying subtype H5N3, lateral spread between poultry with detection of novel reassortants and mixed infections in poultry holdings, suspected spillback of HPAIV from poultry to wild birds, and detection of HPAIV-infected wild birds during the following summer in 2021 were hallmarks of this epizootic. Local reassortment events with low pathogenic AIV strains were detected by phylogenetic analyses, with a dominating HP H5N8 and later HP H5N1 strain responsible for most cases. In addition, the first-ever described HPAIV strain of subtype H5N4 could be genetically characterized.
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Affiliation(s)
- Jacqueline King
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
| | - Timm Harder
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
| | - Anja Globig
- Institute of International Animal Health/One Health, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
| | - Lina Stacker
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
| | - Anne Günther
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
| | - Christian Grund
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
| | - Anne Pohlmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald – Insel Riems, Germany
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15
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Hose M, Günther A, Naser E, Schumacher F, Schönberger T, Falkenstein J, Papadamakis A, Kleuser B, Becker KA, Gulbins E, Haimovitz-Friedman A, Buer J, Westendorf AM, Hansen W. Cell-intrinsic ceramides determine T cell function during melanoma progression. eLife 2022; 11:83073. [PMID: 36426850 PMCID: PMC9699697 DOI: 10.7554/elife.83073] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/15/2022] [Indexed: 11/27/2022] Open
Abstract
Acid sphingomyelinase (Asm) and acid ceramidase (Ac) are parts of the sphingolipid metabolism. Asm hydrolyzes sphingomyelin to ceramide, which is further metabolized to sphingosine by Ac. Ceramide generates ceramide-enriched platforms that are involved in receptor clustering within cellular membranes. However, the impact of cell-intrinsic ceramide on T cell function is not well characterized. By using T cell-specific Asm- or Ac-deficient mice, with reduced or elevated ceramide levels in T cells, we identified ceramide to play a crucial role in T cell function in vitro and in vivo. T cell-specific ablation of Asm in Smpd1fl/fl/Cd4cre/+ (Asm/CD4cre) mice resulted in enhanced tumor progression associated with impaired T cell responses, whereas Asah1fl/fl/Cd4cre/+ (Ac/CD4cre) mice showed reduced tumor growth rates and elevated T cell activation compared to the respective controls upon tumor transplantation. Further in vitro analysis revealed that decreased ceramide content supports CD4+ regulatory T cell differentiation and interferes with cytotoxic activity of CD8+ T cells. In contrast, elevated ceramide concentration in CD8+ T cells from Ac/CD4cre mice was associated with enhanced cytotoxic activity. Strikingly, ceramide co-localized with the T cell receptor (TCR) and CD3 in the membrane of stimulated T cells and phosphorylation of TCR signaling molecules was elevated in Ac-deficient T cells. Hence, our results indicate that modulation of ceramide levels, by interfering with the Asm or Ac activity has an effect on T cell differentiation and function and might therefore represent a novel therapeutic strategy for the treatment of T cell-dependent diseases such as tumorigenesis.
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Affiliation(s)
- Matthias Hose
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Anne Günther
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Eyad Naser
- Institute of Molecular Biology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | | | - Tina Schönberger
- Institute of Physiology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Julia Falkenstein
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Athanasios Papadamakis
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | | | - Katrin Anne Becker
- Institute of Molecular Biology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Erich Gulbins
- Institute of Molecular Biology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | | | - Jan Buer
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Astrid M Westendorf
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Wiebke Hansen
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-EssenEssenGermany
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16
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Kirsten D, de Vries U, Costabel U, Koschel D, Bonella F, Günther A, Behr J, Claussen M, Schwarz S, Prasse A, Kreuter M. [Linguistic Validation of the "German Lung Fibrosis Health Related Quality of Life Questionnaire"]. Pneumologie 2021; 75:753-760. [PMID: 34428830 DOI: 10.1055/a-1334-2745] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
UNLABELLED Health status and quality of life are impaired in patients with idiopathic pulmonary fibrosis (IPF) and idiopathic non-specific interstitial fibrosis (iNSIP). In Germany exists only the K-BILD questionnaire for patients with ILD 1 in a professional translation by Kreuter et al. 2 This questionnaire focuses on the main problems in patients with progressive lung fibrosis in a limited manner. Therefore a new quality of life questionnaire for patients with idiopathic pulmonary fibrosis was developed and linguistically validated. METHODS The linguistic validation of our questionnaire was carried out in a multistage process in collaboration with the developer of the questionnaire and bilingual, professional translators. Review by the developers and back translations as well as clinical assessment by IPF- and iNSIP-patients ensured that the translated questionnaire reflected the intention of the original English version of our questionnaire.Cross-validation was carried out with the St. Georges Respiratory Questionnaire (SGRQ). RESULTS The new questionnaire concerning the health status was composed in English and German language. The questions cover five scales (sensitivity, selectivity and symptoms like breathlessness and cough and a visual analog scale on general health status) with 23 items. CONCLUSIONS The results show that the FFB maps the special needs of the patients with IPF and iNSIP well and can support clinical and scientific questions and can be helpful in monitoring the clinical course.
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Affiliation(s)
| | - U de Vries
- Zentrum für Klinische Psychologie und Rehabilitation der Universität Bremen
| | - U Costabel
- Klinik für Pneumologie, Ruhrlandklinik, Universitätsmedizin Essen
| | | | - F Bonella
- Klinik für Pneumologie, Ruhrlandklinik, Universitätsmedizin Essen
| | - A Günther
- Medizinische Klinik Universität Gießen
| | - J Behr
- Medzinische Klinik und Poliklinik V, LMU Klinikum, Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | | | - S Schwarz
- Asklepios Klinikum Harburg, Lungenabteilung
| | - A Prasse
- Klinik für Pneumologie, Medizinische Hochschule Hannover
| | - M Kreuter
- Zentrum für interstitielle und seltene Lungenerkrankungen, Thoraxklinik, Universitätsklinikum Heidelberg und Deutsches Zentrum für Lungenforschung, Heidelberg
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17
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Barlinn J, Winzer S, Worthmann H, Urbanek C, Häusler KG, Günther A, Erdur H, Görtler M, Busetto L, Wojciechowski C, Schmitt J, Shah Y, Büchele B, Sokolowski P, Kraya T, Merkelbach S, Rosengarten B, Stangenberg-Gliss K, Weber J, Schlachetzki F, Abu-Mugheisib M, Petersen M, Schwartz A, Palm F, Jowaed A, Volbers B, Zickler P, Remi J, Bardutzky J, Bösel J, Audebert HJ, Hubert GJ, Gumbinger C. [Telemedicine in stroke-pertinent to stroke care in Germany]. Nervenarzt 2021; 92:593-601. [PMID: 34046722 PMCID: PMC8184549 DOI: 10.1007/s00115-021-01137-6] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 02/24/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND OBJECTIVE Telemedical stroke networks improve stroke care and provide access to time-dependent acute stroke treatment in predominantly rural regions. The aim is a presentation of data on its utility and regional distribution. METHODS The working group on telemedical stroke care of the German Stroke Society performed a survey study among all telestroke networks. RESULTS Currently, 22 telemedical stroke networks including 43 centers (per network: median 1.5, interquartile range, IQR, 1-3) as well as 225 cooperating hospitals (per network: median 9, IQR 4-17) operate in Germany and contribute to acute stroke care delivery to 48 million people. In 2018, 38,211 teleconsultations (per network: median 1340, IQR 319-2758) were performed. The thrombolysis rate was 14.1% (95% confidence interval 13.6-14.7%) and transfer for thrombectomy was initiated in 7.9% (95% confidence interval 7.5-8.4%) of ischemic stroke patients. Financial reimbursement differs regionally with compensation for telemedical stroke care in only three federal states. CONCLUSION Telemedical stroke care is utilized in about 1 out of 10 stroke patients in Germany. Telemedical stroke networks achieve similar rates of thrombolysis and transfer for thrombectomy compared with neurological stroke units and contribute to stroke care in rural regions. Standardization of network structures, financial assurance and uniform quality measurements may further strengthen the importance of telestroke networks in the future.
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Affiliation(s)
- J Barlinn
- Klinik für Neurologie, Universitätsklinikum Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland.
| | - S Winzer
- Klinik für Neurologie, Universitätsklinikum Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland
| | - H Worthmann
- Klinik für Neurologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - C Urbanek
- Klinik für Neurologie, Klinikum der Stadt Ludwigshafen, Ludwigshafen, Deutschland
| | - K G Häusler
- Neurologische Klinik und Poliklinik, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - A Günther
- Klinik für Neurologie, Universitätsklinikum Jena, Jena, Deutschland
| | - H Erdur
- Klinik und Hochschulambulanz für Neurologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - M Görtler
- Klinik für Neurologie, Universitätsklinikum Magdeburg, Magdeburg, Deutschland
| | - L Busetto
- Klinik für Neurologie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - C Wojciechowski
- Klinik für Neurologie, Universitätsklinikum Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland
| | - J Schmitt
- Zentrum für Evidenzbasierte Gesundheitsversorgung, Universitätsklinikum Dresden, Dresden, Deutschland
| | - Y Shah
- Klinik für Neurologie, Klinikum Kassel, Kassel, Deutschland
| | - B Büchele
- Klinik für Neurologie, Städtisches Klinikum Karlsruhe, Karlsruhe, Deutschland
| | - P Sokolowski
- Klinik für Neurologie und neurologische Intensivmedizin, Fachkrankenhaus Hubertusburg, Hubertusburg, Deutschland
| | - T Kraya
- Klinik für Neurologie, Klinikum St.Georg Leipzig, Leipzig, Deutschland
| | - S Merkelbach
- Klinik für Neurologie, Heinrich-Braun-Klinikum Zwickau, Zwickau, Deutschland
| | - B Rosengarten
- Klinik für Neurologie, Klinikum Chemnitz, Chemnitz, Deutschland
| | - K Stangenberg-Gliss
- Klinik für Neurologie, BG Klinikum Unfallkrankenhaus Berlin, Berlin, Deutschland
| | - J Weber
- Klinik und Hochschulambulanz für Neurologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - F Schlachetzki
- Klinik für Neurologie, Universität Regensburg, Regensburg, Deutschland
| | - M Abu-Mugheisib
- Klinik für Neurologie, Städtisches Klinikum Braunschweig, Braunschweig, Deutschland
| | - M Petersen
- Klinik für Neurologie, Klinikum Osnabrück, Osnabrück, Deutschland
| | - A Schwartz
- Klinik für Neurologie, Klinikum Region Hannover, Hannover, Deutschland
| | - F Palm
- Klinik für Neurologie, Helios Klinikum Schleswig, Schleswig, Deutschland
| | - A Jowaed
- Klinik für Neurologie, Westküstenkliniken Heide, Heide, Deutschland
| | - B Volbers
- Klinik für Neurologie, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - P Zickler
- Klinik für Neurologie und Klinische Neurophysiologie, Universitätsklinikum Augsburg, Augsburg, Deutschland
| | - J Remi
- Klinik für Neurologie, Klinikum der LMU München-Großhadern, München, Deutschland
| | - J Bardutzky
- Klinik für Neurologie, Universitätsklinikum Freiburg, Freiburg, Deutschland
| | - J Bösel
- Klinik für Neurologie, Klinikum Kassel, Kassel, Deutschland
| | - H J Audebert
- Klinik und Hochschulambulanz für Neurologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland.,Centrum für Schlaganfallforschung Berlin, Charité - Universitätsmedizin Berlin, Berlin, Deutschland
| | - G J Hubert
- Klinik für Neurologie, München-Klinik Harlaching, München, Deutschland
| | - C Gumbinger
- Klinik für Neurologie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
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18
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Deutsch M, Günther A, Lerchundi R, Rose CR, Balfanz S, Baumann A. AAV-Mediated CRISPRi and RNAi Based Gene Silencing in Mouse Hippocampal Neurons. Cells 2021; 10:324. [PMID: 33557342 PMCID: PMC7915209 DOI: 10.3390/cells10020324] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/09/2020] [Revised: 01/27/2021] [Accepted: 01/30/2021] [Indexed: 12/12/2022] Open
Abstract
Uncovering the physiological role of individual proteins that are part of the intricate process of cellular signaling is often a complex and challenging task. A straightforward strategy of studying a protein's function is by manipulating the expression rate of its gene. In recent years, the Clustered Regularly Interspaced Short Palindromic Repeat (CRISPR)/Cas9-based technology was established as a powerful gene-editing tool for generating sequence specific changes in proliferating cells. However, obtaining homogeneous populations of transgenic post-mitotic neurons by CRISPR/Cas9 turned out to be challenging. These constraints can be partially overcome by CRISPR interference (CRISPRi), which mediates the inhibition of gene expression by competing with the transcription machinery for promoter binding and, thus, transcription initiation. Notably, CRISPR/Cas is only one of several described approaches for the manipulation of gene expression. Here, we targeted neurons with recombinant Adeno-associated viruses to induce either CRISPRi or RNA interference (RNAi), a well-established method for impairing de novo protein biosynthesis by using cellular regulatory mechanisms that induce the degradation of pre-existing mRNA. We specifically targeted hyperpolarization-activated and cyclic nucleotide-gated (HCN) channels, which are widely expressed in neuronal tissues and play essential physiological roles in maintaining biophysical characteristics in neurons. Both of the strategies reduced the expression levels of three HCN isoforms (HCN1, 2, and 4) with high specificity. Furthermore, detailed analysis revealed that the knock-down of just a single HCN isoform (HCN4) in hippocampal neurons did not affect basic electrical parameters of transduced neurons, whereas substantial changes emerged in HCN-current specific properties.
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Affiliation(s)
- Matthias Deutsch
- Forschungszentrum Jülich, Institute of Biological Information Processing, IBI-1, Leo-Brandt-Straße, 52428 Jülich, Germany; (M.D.); (S.B.)
- Department of Biology, University of California, San Diego, La Jolla, CA 92083, USA
| | - Anne Günther
- Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Falkenried 94, 20251 Hamburg, Germany;
| | - Rodrigo Lerchundi
- Institute of Neurobiology, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany; (R.L.); (C.R.R.)
| | - Christine R. Rose
- Institute of Neurobiology, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany; (R.L.); (C.R.R.)
| | - Sabine Balfanz
- Forschungszentrum Jülich, Institute of Biological Information Processing, IBI-1, Leo-Brandt-Straße, 52428 Jülich, Germany; (M.D.); (S.B.)
| | - Arnd Baumann
- Forschungszentrum Jülich, Institute of Biological Information Processing, IBI-1, Leo-Brandt-Straße, 52428 Jülich, Germany; (M.D.); (S.B.)
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19
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Diab M, Hamadanchi A, Franz M, Struve A, Färber G, Sponholz C, Löffler B, Pletz MW, Schulze PC, Günther A, Doenst T. The Impact of Establishing a Regional Infective Endocarditis (IE) Network on Decreasing Diagnostic Latency and Perioperative IE-Related Complications. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725759] [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: 10/21/2022]
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20
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Gruteser N, Kohlhas V, Balfanz S, Franzen A, Günther A, Offenhäusser A, Müller F, Nikolaev V, Lohse MJ, Baumann A. Establishing a sensitive fluorescence-based quantification method for cyclic nucleotides. BMC Biotechnol 2020; 20:47. [PMID: 32854679 PMCID: PMC7450941 DOI: 10.1186/s12896-020-00633-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/21/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Approximately 40% of prescribed drugs exert their activity via GTP-binding protein-coupled receptors (GPCRs). Once activated, these receptors cause transient changes in the concentration of second messengers, e.g., cyclic adenosine 3',5'-monophosphate (cAMP). Specific and efficacious genetically encoded biosensors have been developed to monitor cAMP fluctuations with high spatial and temporal resolution in living cells or tissue. A well characterized biosensor for cAMP is the Förster resonance energy transfer (FRET)-based Epac1-camps protein. Pharmacological characterization of newly developed ligands acting at GPCRs often includes numerical quantification of the second messenger amount that was produced. RESULTS To quantify cellular cAMP concentrations, we bacterially over-expressed and purified Epac1-camps and applied the purified protein in a cell-free detection assay for cAMP in a multi-well format. We found that the biosensor can detect as little as 0.15 pmol of cAMP, and that the sensitivity is not impaired by non-physiological salt concentrations or pH values. Notably, the assay tolerated desiccation and storage of the protein without affecting Epac1-camps cyclic nucleotide sensitivity. CONCLUSIONS We found that determination cAMP in lysates obtained from cell assays or tissue samples by purified Epac1-camps is a robust, fast, and sensitive assay suitable for routine and high throughput analyses.
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Affiliation(s)
- Nadine Gruteser
- Institute of Biological Information Processing (Molecular and Cellular Physiology, IBI-1), Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Viktoria Kohlhas
- Institute of Biological Information Processing (Molecular and Cellular Physiology, IBI-1), Forschungszentrum Jülich, 52428, Jülich, Germany.,Present address: CECAD Research Center, 50931, Cologne, Germany
| | - Sabine Balfanz
- Institute of Biological Information Processing (Molecular and Cellular Physiology, IBI-1), Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Arne Franzen
- Institute of Biological Information Processing (Molecular and Cellular Physiology, IBI-1), Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Anne Günther
- Institute of Biological Information Processing (Molecular and Cellular Physiology, IBI-1), Forschungszentrum Jülich, 52428, Jülich, Germany.,Present address: RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Andreas Offenhäusser
- Institute of Biological Information Processing (Bioelectronics, IBI-3), Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Frank Müller
- Institute of Biological Information Processing (Molecular and Cellular Physiology, IBI-1), Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Viacheslav Nikolaev
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Martin J Lohse
- Institute of Pharmacology and Toxicology, University of Würzburg, 97078, Würzburg, Germany.,Max Delbrück Center for Molecular Medicine, 13125, Berlin, Germany
| | - Arnd Baumann
- Institute of Biological Information Processing (Molecular and Cellular Physiology, IBI-1), Forschungszentrum Jülich, 52428, Jülich, Germany.
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21
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Ulvestad B, Ulvestad M, Skaugset NP, Aaløkken TM, Günther A, Clemm T, Lund MB, Ellingsen DG. Pulmonary function and high-resolution computed tomography in outdoor rock drillers exposed to crystalline silica. Occup Environ Med 2020; 77:611-616. [PMID: 32571792 DOI: 10.1136/oemed-2019-106254] [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] [Received: 10/11/2019] [Revised: 04/28/2020] [Accepted: 05/30/2020] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Chronic obstructive pulmonary disease and silicosis are associated with exposure to crystalline silica. We determined the exposure to respirable crystalline silica and estimated exposure-response relationships between cumulative exposure and pulmonary function in outdoor rock drillers. METHODS 136 rock drillers and 48 referents were recruited from three heavy construction companies. 98 air samples were collected by personal sampling for determination of respirable particulate matter and crystalline silica. Information about individual job tasks, type of drilling equipment and years of exposure in different job categories was obtained by interview. Cumulative exposure to crystalline silica was calculated for all workers. Pulmonary function was assessed by spirometry. A subgroup of 39 subjects with high cumulative exposure to crystalline silica underwent high-resolution computed tomography (HRCT). RESULTS Cumulative exposure (mean (min-max)) to crystalline silica was 0.69 mg٠years m-3 (0.01-5.89) in the exposed group. Mean time of exposure among rock drillers was 10.7 years (1-42). Compared with referents, the rock drillers had a lower forced expiratory volume in one second/forced vital capacity ratio (79.4 vs 81.4, p<0.05) and maximal mid-expiratory flow% (85.6 vs 93.9, p<0.05). Further, by stratifying the exposed workers into three equally large groups, a dose-response relationship was demonstrated in the highest exposed group, also in never smokers, at a mean cumulative exposure of 21.7 years at 0.08 mg٠m-3/years. Silicosis was not detected in HRCT, but other patterns of fibrosis and emphysema were seen. CONCLUSIONS Outdoor rock drillers exposed to crystalline silica had significantly lower pulmonary function than referents, and signs of airflow obstruction. Silicosis was not detected.
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Affiliation(s)
- Bente Ulvestad
- Department of Occupational Medicine and Epidemiology, The Natioanal Institute of Occupational Health, Oslo, Norway
| | - Mariann Ulvestad
- Department of Respiratory Medicine, Oslo University Hospital, Oslo, Norway
| | - Nils Petter Skaugset
- Department of Chemical and Biological Work Environment, National Institute of Occupational Health, Oslo, Norway
| | - Trond Mogens Aaløkken
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Anne Günther
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Thomas Clemm
- Department of Occupational Health Services, Mesta AS, Bergen, Norway
| | - May Brit Lund
- Department of Respiratory Medicine, Oslo University Hospital, Oslo, Norway
| | - Dag Gunnar Ellingsen
- Department of Chemical and Biological Work Environment, National Institute of Occupational Health, Oslo, Norway
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22
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Liedtke K, Alter C, Günther A, Hövelmeyer N, Klopfleisch R, Naumann R, Wunderlich FT, Buer J, Westendorf AM, Hansen W. Endogenous CD83 Expression in CD4 + Conventional T Cells Controls Inflammatory Immune Responses. J Immunol 2020; 204:3217-3226. [PMID: 32341061 DOI: 10.4049/jimmunol.2000042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/10/2020] [Indexed: 12/16/2022]
Abstract
The glycoprotein CD83 is known to be expressed by different immune cells including activated CD4+Foxp3+ regulatory T cells (Tregs) and CD4+Foxp3- conventional T cells. However, the physiological function of endogenous CD83 in CD4+ T cell subsets is still unclear. In this study, we have generated a new CD83flox mouse line on BALB/c background, allowing for specific ablation of CD83 in T cells upon breeding with CD4-cre mice. Tregs from CD83flox/flox/CD4-cretg/wt mice had similar suppressive activity as Tregs from CD83flox/flox/CD4-crewt/wt wild-type littermates, suggesting that endogenous CD83 expression is dispensable for the inhibitory capacity of Tregs. However, CD83-deficient CD4+ conventional T cells showed elevated proliferation and IFN-γ secretion as well as an enhanced capacity to differentiate into Th1 cells and Th17 cells upon stimulation in vitro. T cell-specific ablation of CD83 expression resulted in aggravated contact hypersensitivity reaction accompanied by enhanced CD4+ T cell activation. Moreover, adoptive transfer of CD4+CD45RBhigh T cells from CD83flox/flox/CD4-cretg /wt mice into Rag2-deficient mice elicited more severe colitis associated with increased serum concentrations of IL-12 and elevated CD40 expression on CD11c+ dendritic cells (DCs). Strikingly, DCs from BALB/c mice cocultured with CD83-deficient CD4+ conventional T cells showed enhanced CD40 expression and IL-12 secretion compared with DCs cocultured with CD4+ conventional T cells from CD83flox/flox/CD4-crewt/wt wild-type mice. In summary, these results indicate that endogenous CD83 expression in CD4+ conventional T cells plays a crucial role in controlling CD4+ T cell responses, at least in part, by regulating the activity of CD11c+ DCs.
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Affiliation(s)
- Katarina Liedtke
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany
| | - Christina Alter
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany
| | - Anne Günther
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany
| | - Nadine Hövelmeyer
- Institute for Medical Medicine, University Medical Center of the Johannes-Gutenberg University Mainz, 55131 Mainz, Germany
| | - Robert Klopfleisch
- Institute of Veterinary Pathology, Free University of Berlin, 14163 Berlin, Germany
| | - Ronald Naumann
- Transgenic Core Facility, Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
| | - F Thomas Wunderlich
- Max Planck Institute for Metabolism Research, Center for Endocrinology, Diabetes and Preventive Medicine, University Hospital of Cologne, University of Cologne, 50931 Cologne, Germany; and
- Excellence Cluster on Cellular Stress Responses in Aging Associated Diseases, University of Cologne, 50931 Cologne, Germany
| | - Jan Buer
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany
| | - Astrid M Westendorf
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany
| | - Wiebke Hansen
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany;
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23
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Behr J, Günther A, Bonella F, Dinkel J, Fink L, Geiser T, Geißler K, Gläser S, Handzhhiev S, Jonigk D, Koschel D, Kreuter M, Leuschner G, Markart P, Prasse A, Schönfeld N, Schupp JC, Sitter H, Müller-Quernheim J, Costabel U. [German Guideline for Idiopathic Pulmonary Fibrosis]. Pneumologie 2020; 74:e1-e2. [PMID: 32422671 DOI: 10.1055/a-1179-2905] [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] [Indexed: 10/24/2022]
Affiliation(s)
- J Behr
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München und Asklepios Fachkliniken München-Gauting, Comprehensive Pneumology Center, Mitglied des Deutschen Zentrums für Lungenforschung, München
| | - A Günther
- Schwerpunkt Fibrosierende Lungenerkrankungen, Universitätsklinikum Gießen - Marburg, Standort Gießen, Justus-Liebig-Universität Gießen, sowie Agaplesion Pneumologische Klinik Waldhof-Elgershausen, Greifenstein, University of Giessen Marburg Lung Center, Mitglied des Deutschen Zentrums für Lungenforschung
| | - F Bonella
- Zentrum für interstitielle und seltene Lungenkrankheiten, Klinik für Pneumologie, Ruhrlandklinik, Universitätsmedizin Essen, Essen
| | - J Dinkel
- Klinik für Radiologie, Klinikum der Universität München, LMU, und Asklepios Fachkliniken München Gauting, Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - L Fink
- Institut für Pathologie und Zytologie, ÜGP Wetzlar, Mitglied des Deutschen Zentrums für Lungenforschung, Wetzlar
| | - T Geiser
- Universitätsklinik für Pneumologie, Universitätsspital, Universität Bern, Bern
| | - K Geißler
- Patientenvertretung Lungenfibrose e. V., Essen
| | - S Gläser
- Vivantes Klinikum Neukölln und Spandau Berlin, Klinik für Innere Medizin - Pneumologie und Infektiologie sowie und Universitätsmedizin Greifswald, Greifswald
| | - S Handzhhiev
- Klinische Abteilung für Pneumologie, Universitätsklinikum Krems, Krems an der Donau, Österreich
| | - D Jonigk
- Institut für Pathologie, Medizinische Hochschule Hannover, Mitglied des Deutschen Zentrums für Lungenforschung, Hannover
| | - D Koschel
- Abteilung Innere Medizin/Pneumologie, Fachkrankenhaus Coswig, Zentrum für Pneumologie, Allergologie, Beatmungsmedizin, Thoraxchirurgie und Medizinische Klinik 1, Bereich Pneumologie, Universitätsklinikum Carl Gustav Carus, Dresden
| | - M Kreuter
- Zentrum für interstitielle und seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg, Mitglied des Deutschen Zentrums für Lungenforschung, Heidelberg
| | - G Leuschner
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München und Asklepios Fachkliniken München-Gauting, Comprehensive Pneumology Center, Mitglied des Deutschen Zentrums für Lungenforschung, München
| | - P Markart
- Schwerpunkt Fibrosierende Lungenerkrankungen, Universitätsklinikum Gießen - Marburg, Standort Gießen, Justus-Liebig-Universität Gießen, University of Giessen Marburg Lung Center, sowie Campus Fulda Universitätsmedizin Marburg, Med. Klinik V; Mitglied des Deutschen Zentrums für Lungenforschung, Fulda
| | - A Prasse
- Klinik für Pneumologie, Medizinische Hochschule Hannover und Clinical Research Center Fraunhofer Institut ITEM, Mitglied des Deutschen Zentrums für Lungenforschung, Hannover
| | - N Schönfeld
- Klinik für Pneumologie, Lungenklinik Heckeshorn, Helios Klinikum Emil von Behring, Berlin
| | - J C Schupp
- Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut, United States
| | - H Sitter
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften (AWMF), Berlin
| | - J Müller-Quernheim
- Klinik für Pneumologie, Department Innere Medizin, Medizinische Fakultät, Albert Ludwigs Universität, Freiburg
| | - U Costabel
- Zentrum für interstitielle und seltene Lungenkrankheiten, Klinik für Pneumologie, Ruhrlandklinik, Universitätsmedizin Essen, Essen
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24
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Knox-Brown P, Rindfleisch T, Günther A, Balow K, Bremer A, Walther D, Miettinen MS, Hincha DK, Thalhammer A. Similar Yet Different-Structural and Functional Diversity among Arabidopsis thaliana LEA_4 Proteins. Int J Mol Sci 2020; 21:E2794. [PMID: 32316452 PMCID: PMC7215670 DOI: 10.3390/ijms21082794] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 02/28/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 12/28/2022] Open
Abstract
The importance of intrinsically disordered late embryogenesis abundant (LEA) proteins in the tolerance to abiotic stresses involving cellular dehydration is undisputed. While structural transitions of LEA proteins in response to changes in water availability are commonly observed and several molecular functions have been suggested, a systematic, comprehensive and comparative study of possible underlying sequence-structure-function relationships is still lacking. We performed molecular dynamics (MD) simulations as well as spectroscopic and light scattering experiments to characterize six members of two distinct, lowly homologous clades of LEA_4 family proteins from Arabidopsis thaliana. We compared structural and functional characteristics to elucidate to what degree structure and function are encoded in LEA protein sequences and complemented these findings with physicochemical properties identified in a systematic bioinformatics study of the entire Arabidopsis thaliana LEA_4 family. Our results demonstrate that although the six experimentally characterized LEA_4 proteins have similar structural and functional characteristics, differences concerning their folding propensity and membrane stabilization capacity during a freeze/thaw cycle are obvious. These differences cannot be easily attributed to sequence conservation, simple physicochemical characteristics or the abundance of sequence motifs. Moreover, the folding propensity does not appear to be correlated with membrane stabilization capacity. Therefore, the refinement of LEA_4 structural and functional properties is likely encoded in specific patterns of their physicochemical characteristics.
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Affiliation(s)
- Patrick Knox-Brown
- Physical Biochemistry, University of Potsdam, Karl-Liebknecht-Str. 24–25, D-14476 Potsdam, Germany; (P.K.-B.); (T.R.)
| | - Tobias Rindfleisch
- Physical Biochemistry, University of Potsdam, Karl-Liebknecht-Str. 24–25, D-14476 Potsdam, Germany; (P.K.-B.); (T.R.)
| | - Anne Günther
- Max-Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam, Germany; (A.G.); (K.B.); (A.B.); (D.W.); (D.K.H.)
| | - Kim Balow
- Max-Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam, Germany; (A.G.); (K.B.); (A.B.); (D.W.); (D.K.H.)
| | - Anne Bremer
- Max-Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam, Germany; (A.G.); (K.B.); (A.B.); (D.W.); (D.K.H.)
- Department for Structural Biology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Dirk Walther
- Max-Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam, Germany; (A.G.); (K.B.); (A.B.); (D.W.); (D.K.H.)
| | - Markus S. Miettinen
- Max-Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476 Potsdam, Germany;
| | - Dirk K. Hincha
- Max-Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, D-14476 Potsdam, Germany; (A.G.); (K.B.); (A.B.); (D.W.); (D.K.H.)
| | - Anja Thalhammer
- Physical Biochemistry, University of Potsdam, Karl-Liebknecht-Str. 24–25, D-14476 Potsdam, Germany; (P.K.-B.); (T.R.)
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25
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Behr J, Günther A, Bonella F, Dinkel J, Fink L, Geiser T, Geißler K, Gläser S, Handzhhiev S, Jonigk D, Koschel D, Kreuter M, Leuschner G, Markart P, Prasse A, Schönfeld N, Schupp JC, Sitter H, Müller-Quernheim J, Costabel U. [German Guideline for Idiopathic Pulmonary Fibrosis]. Pneumologie 2020; 74:263-293. [PMID: 32227328 DOI: 10.1055/a-1120-3531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a severe and often fatal disease. Diagnosis of IPF requires considerable expertise and experience. Since publication of the international IPF guideline in the year 2011 and Update 2018 several studies and technical advances occurred, which made a new assessment of the diagnostic process mandatory. In view of the antifibrotic drugs which have been approved for the treatment of IPF patients, the goal of this guideline is to foster early, confident and effective diagnosis of IPF. The guideline focusses on the typical clinical setting of an IPF patient and provides tools to exclude known causes of interstitial lung disease including standardised questionnaires, serologic testing and cellular analysis of bronchoalveolar lavage. High resolution computed tomography remains crucial in the diagnostic work-up. If it is necessary to obtain specimen for histology transbronchial lung cryobiopsy is the primary approach, while surgical lung biopsy is reserved for patients who are fit for it and in whom bronchoscopic diagnosis did not provide the information needed. Despite considerable progress, IPF remains a diagnosis of exclusion and multidisciplinary discussion remains the golden standard of diagnosis.
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Affiliation(s)
- J Behr
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München und Asklepios Fachkliniken München-Gauting, Comprehensive Pneumology Center, Mitglied des Deutschen Zentrums für Lungenforschung, München
| | - A Günther
- Schwerpunkt Fibrosierende Lungenerkrankungen, Universitätsklinikum Gießen - Marburg, Standort Gießen, Justus-Liebig-Universität Gießen, sowie Agaplesion Pneumologische Klinik Waldhof-Elgershausen, Greifenstein, University of Giessen Marburg Lung Center, Mitglied des Deutschen Zentrums für Lungenforschung
| | - F Bonella
- Zentrum für interstitielle und seltene Lungenkrankheiten, Klinik für Pneumologie, Ruhrlandklinik, Universitätsmedizin Essen, Essen
| | - J Dinkel
- Klinik für Radiologie, Klinikum der Universität München, LMU, und Asklepios Fachkliniken München Gauting, Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - L Fink
- Institut für Pathologie und Zytologie, ÜGP Wetzlar, Mitglied des Deutschen Zentrums für Lungenforschung, Wetzlar
| | - T Geiser
- Universitätsklinik für Pneumologie, Universitätsspital, Universität Bern, Bern
| | - K Geißler
- Patientenvertretung Lungenfibrose e. V., Essen
| | - S Gläser
- Vivantes Klinikum Neukölln und Spandau Berlin, Klinik für Innere Medizin - Pneumologie und Infektiologie sowie und Universitätsmedizin Greifswald, Greifswald
| | - S Handzhhiev
- Klinische Abteilung für Pneumologie, Universitätsklinikum Krems, Krems an der Donau, Österreich
| | - D Jonigk
- Institut für Pathologie, Medizinische Hochschule Hannover, Mitglied des Deutschen Zentrums für Lungenforschung, Hannover
| | - D Koschel
- Abteilung Innere Medizin/Pneumologie, Fachkrankenhaus Coswig, Zentrum für Pneumologie, Allergologie, Beatmungsmedizin, Thoraxchirurgie und Medizinische Klinik 1, Bereich Pneumologie, Universitätsklinikum Carl Gustav Carus, Dresden
| | - M Kreuter
- Zentrum für interstitielle und seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg, Mitglied des Deutschen Zentrums für Lungenforschung, Heidelberg
| | - G Leuschner
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München und Asklepios Fachkliniken München-Gauting, Comprehensive Pneumology Center, Mitglied des Deutschen Zentrums für Lungenforschung, München
| | - P Markart
- Schwerpunkt Fibrosierende Lungenerkrankungen, Universitätsklinikum Gießen - Marburg, Standort Gießen, Justus-Liebig-Universität Gießen, University of Giessen Marburg Lung Center, sowie Campus Fulda Universitätsmedizin Marburg, Med. Klinik V; Mitglied des Deutschen Zentrums für Lungenforschung, Fulda
| | - A Prasse
- Klinik für Pneumologie, Medizinische Hochschule Hannover und Clinical Research Center Fraunhofer Institut ITEM, Mitglied des Deutschen Zentrums für Lungenforschung, Hannover
| | - N Schönfeld
- Klinik für Pneumologie, Lungenklinik Heckeshorn, Helios Klinikum Emil von Behring, Berlin
| | - J C Schupp
- Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut, United States
| | - H Sitter
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften (AWMF), Berlin
| | - J Müller-Quernheim
- Klinik für Pneumologie, Department Innere Medizin, Medizinische Fakultät, Albert Ludwigs Universität, Freiburg
| | - U Costabel
- Zentrum für interstitielle und seltene Lungenkrankheiten, Klinik für Pneumologie, Ruhrlandklinik, Universitätsmedizin Essen, Essen
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Sturmheit T, Konczalla L, Temovski TS, Günther A, Brauneck F, Li J, Perez D, Jücker M, Thastrup J, Fiedler W, Wellbrock J, Kupper J, Block A. Pre-therapeutic Evaluation of Patient-Specific Responses to Immune-Checkpoint Inhibition in Colorectal Cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz450.002] [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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Günther A, Schubert J, Witte OW, Brämer D. [Intensive care aspects of autoimmune encephalitis]. Med Klin Intensivmed Notfmed 2019; 114:620-627. [PMID: 31456008 DOI: 10.1007/s00063-019-0604-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 02/27/2019] [Accepted: 03/03/2019] [Indexed: 01/15/2023]
Abstract
Autoimmune encephalitis is a rare, rapidly progressive and potentially severe inflammatory brain disease, usually mediated by autoantibodies. Frequently, the affected patients go through various phases of the disease with prodromi, neuropsychological abnormalities, severe neurological and autonomic disorders and usually long reconvalescence. In up to 85% of patients intensive care treatment is necessary, especially in the group of anti-NMDA receptor encephalitis (NMDA-RE). Typical problems during ICU stay include: severe qualitative and quantitative disturbances of consciousness, autonomic dysfunction, epileptic seizures/epileptic status, treatment-refractory movement disorders, as well as ventilation and weaning problems requiring tracheotomy. But also ethical conflicts and general ICU complications such as sepsis, the need for resuscitation, as well as surgical and psychiatric complications occur. The outcome is highly heterogeneous with a range from complete recovery to the most severe, persistent disorders of consciousness with extensive care and death. Mortality data also vary at between 12% and 40%. Patients requiring mechanical ventilation and tracheostomy and with sepsis and autonomic dysfunction are prone to worse outcomes. A large part of the presented data refers to a recently published multicenter, Germany-wide retrospective cohort study and brought into the context of existing literature.
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Affiliation(s)
- A Günther
- Hans-Berger-Klinik für Neurologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland.
| | - J Schubert
- Hans-Berger-Klinik für Neurologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland
| | - O W Witte
- Hans-Berger-Klinik für Neurologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland
| | - D Brämer
- Hans-Berger-Klinik für Neurologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Deutschland
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Hose M, Günther A, Abberger H, Begum S, Korencak M, Becker KA, Buer J, Westendorf AM, Hansen W. T Cell-Specific Overexpression of Acid Sphingomyelinase Results in Elevated T Cell Activation and Reduced Parasitemia During Plasmodium yoelii Infection. Front Immunol 2019; 10:1225. [PMID: 31214184 PMCID: PMC6554418 DOI: 10.3389/fimmu.2019.01225] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 02/14/2019] [Accepted: 05/14/2019] [Indexed: 12/31/2022] Open
Abstract
The enzyme acid sphingomyelinase (ASM) hydrolyzes sphingomyelin to ceramide and is thereby involved in several cellular processes such as differentiation, proliferation, and apoptosis in different cell types. However, the function of ASM in T cells is still not well characterized. Here, we used T cell-specific ASM overexpressing mice (t-ASM/CD4cre) to clarify the impact of cell-intrinsic ASM activity on T cell function in vitro and in vivo. We showed that t-ASM/CD4cre mice exhibit decreased frequencies of Foxp3+ T regulatory cells (Tregs) within the spleen. Enforced T cell-specific ASM expression resulted in less efficient induction of Tregs and promoted differentiation of CD4+CD25− naïve T cells into IFN-γ producing Th1 cells in vitro. Further analysis revealed that ASM-overexpressing T cells from t-ASM/CD4cre mice show elevated T cell receptor (TCR) signaling activity accompanied with increased proliferation upon stimulation in vitro. Plasmodium yoelii infection of t-ASM/CD4cre mice resulted in enhanced T cell activation and was associated with reduced parasitemia in comparison to infected control mice. Hence, our results provide evidence that ASM activity modulates T cell function in vitro and in vivo.
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Affiliation(s)
- Matthias Hose
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Anne Günther
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Hanna Abberger
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Salina Begum
- Institute of Molecular Biology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Marek Korencak
- Institute for HIV Research, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Katrin A Becker
- Institute of Molecular Biology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Jan Buer
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Astrid M Westendorf
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Wiebke Hansen
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
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Günther A, Luczak V, Gruteser N, Abel T, Baumann A. HCN4 knockdown in dorsal hippocampus promotes anxiety-like behavior in mice. Genes Brain Behav 2019; 18:e12550. [PMID: 30585408 PMCID: PMC6850037 DOI: 10.1111/gbb.12550] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 12/03/2018] [Accepted: 12/22/2018] [Indexed: 12/29/2022]
Abstract
Hyperpolarization‐activated and cyclic nucleotide‐gated (HCN) channels mediate the Ih current in the murine hippocampus. Disruption of the Ih current by knockout of HCN1, HCN2 or tetratricopeptide repeat‐containing Rab8b‐interacting protein has been shown to affect physiological processes such as synaptic integration and maintenance of resting membrane potentials as well as several behaviors in mice, including depressive‐like and anxiety‐like behaviors. However, the potential involvement of the HCN4 isoform in these processes is unknown. Here, we assessed the contribution of the HCN4 isoform to neuronal processing and hippocampus‐based behaviors in mice. We show that HCN4 is expressed in various regions of the hippocampus, with distinct expression patterns that partially overlapped with other HCN isoforms. For behavioral analysis, we specifically modulated HCN4 expression by injecting recombinant adeno‐associated viral (rAAV) vectors mediating expression of short hairpin RNA against hcn4 (shHcn4) into the dorsal hippocampus of mice. HCN4 knockdown produced no effect on contextual fear conditioning or spatial memory. However, a pronounced anxiogenic effect was evident in mice treated with shHcn4 compared to control littermates. Our findings suggest that HCN4 specifically contributes to anxiety‐like behaviors in mice.
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Affiliation(s)
- Anne Günther
- Laboratory for Synaptic Molecules of Memory Persistence, Center for Brain Science, RIKEN, Saitama, Japan.,Institute of Complex Systems, Cellular Biophysics (ICS-4),Research Center Jülich, Jülich, Germany
| | - Vincent Luczak
- Division of Biological Sciences and Center for Neural Circuits and Behavior, Neurobiology Section, Kavli Institute for Brain and Mind, University of California, San Diego, La Jolla, California, USA
| | - Nadine Gruteser
- Institute of Complex Systems, Cellular Biophysics (ICS-4),Research Center Jülich, Jülich, Germany
| | - Ted Abel
- Iowa Neuroscience Institute, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Arnd Baumann
- Institute of Complex Systems, Cellular Biophysics (ICS-4),Research Center Jülich, Jülich, Germany
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Abel J, Scheithauer U, Janics T, Hampel S, Cano S, Müller-Köhn A, Günther A, Kukla C, Moritz T. Fused Filament Fabrication (FFF) of Metal-Ceramic Components. J Vis Exp 2019. [PMID: 30688295 DOI: 10.3791/57693] [Citation(s) in RCA: 18] [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: 10/31/2022] Open
Abstract
Technical ceramics are widely used for industrial and research applications, as well as for consumer goods. Today, the demand for complex geometries with diverse customization options and favorable production methods is increasing continuously. With fused filament fabrication (FFF), it is possible to produce large and complex components quickly with high material efficiency. In FFF, a continuous thermoplastic filament is melted in a heated nozzle and deposited below. The computer-controlled print head is moved in order to build up the desired shape layer by layer. Investigations regarding printing of metals or ceramics are increasing more and more in research and industry. This study focuses on additive manufacturing (AM) with a multi-material approach to combine a metal (stainless steel) with a technical ceramic (zirconia: ZrO2). Combining these materials offers a broad variety of applications due to their different electrical and mechanical properties. The paper shows the main issues in preparation of the material and feedstock, device development, and printing of these composites.
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Affiliation(s)
- Johannes Abel
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS;
| | - Uwe Scheithauer
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS
| | | | | | - Santiago Cano
- Institute of Polymer Processing, Montanuniversitaet Leoben
| | | | - Anne Günther
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS
| | | | - Tassilo Moritz
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS
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Pérez-Mato M, Iglesias-Rey R, Vieites-Prado A, Dopico-López A, Argibay B, Fernández-Susavila H, da Silva-Candal A, Pérez-Díaz A, Correa-Paz C, Günther A, Ávila-Gómez P, Isabel Loza M, Baumann A, Castillo J, Sobrino T, Campos F. Blood glutamate EAAT 2-cell grabbing therapy in cerebral ischemia. EBioMedicine 2018; 39:118-131. [PMID: 30555045 PMCID: PMC6354443 DOI: 10.1016/j.ebiom.2018.11.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/13/2018] [Accepted: 11/13/2018] [Indexed: 01/10/2023] Open
Abstract
Background Excitatory amino acid transporter 2 (EAAT2) plays a pivotal role in glutamate clearance in the adult brain, thereby preventing excitotoxic effects. Considering the high efficacy of EAAT2 for glutamate uptake, we hypothesized that the expression of this transporter in mesenchymal stem cells (MSCs) for systemic administration could yield a cell-based glutamate-grabbing therapy, combining the intrinsic properties of these cells with excitotoxic protection. Methods To address this hypothesis, EAAT2-encoding cDNA was introduced into MSCs and human embryonic kidney 293 cells (HEK cells) as the control cell line. EAAT2 expression and functionality were evaluated by in vitro assays. Blood glutamate-grabbing activity was tested in healthy and ischemic rat models treated with 3 × 106 and 9 × 106 cells/animal. Findings The expression of EAAT2 in both cell types conferred the expected glutamate-grabbing activity in in vitro and in vivo studies. The functional improvement observed in ischemic rats treated with EAAT2–HEK at low dose, confirmed that this effect was indeed mediated by the glutamate-grabbing activity associated with EAAT2 functionality. Unexpectedly, both cell doses of non-transfected MSCs induced higher protection than transfected EAAT2–MSCs by another mechanism independent of the glutamate-grabbing capacity. Interpretation Although the transfection procedure most likely interferes with some of the intrinsic protective mechanisms of mesenchymal cells, the results show that the induced expression of EAAT2 in cells represents a novel alternative to mitigate the excitotoxic effects of glutamate and paves the way to combine this strategy with current cell therapies for cerebral ischemia.
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Affiliation(s)
- María Pérez-Mato
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Ramón Iglesias-Rey
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Alba Vieites-Prado
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Antonio Dopico-López
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Bárbara Argibay
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Héctor Fernández-Susavila
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Andrés da Silva-Candal
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Amparo Pérez-Díaz
- Drug Screening Platform/Biofarma Research Group, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Clara Correa-Paz
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Anne Günther
- Institute of Complex Systems-Cellular Biophysics (ICS-4), Forschungszentrum Jülich, Jülich, Germany
| | - Paulo Ávila-Gómez
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - M Isabel Loza
- Drug Screening Platform/Biofarma Research Group, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Arnd Baumann
- Institute of Complex Systems-Cellular Biophysics (ICS-4), Forschungszentrum Jülich, Jülich, Germany
| | - José Castillo
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain
| | - Tomás Sobrino
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain.
| | - Francisco Campos
- Clinical Neurosciences Research Laboratory (LINC), Department of Neurology, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital, Santiago de Compostela, Spain.
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Heiligenhaus A, Minden K, Tappeiner C, Baus H, Bertram B, Deuter C, Foeldvari I, Föll D, Frosch M, Ganser G, Gaubitz M, Günther A, Heinz C, Horneff G, Huemer C, Kopp I, Lommatzsch C, Lutz T, Michels H, Neß T, Neudorf U, Pleyer U, Schneider M, Schulze-Koops H, Thurau S, Zierhut M, Lehmann HW. Update of the evidence based, interdisciplinary guideline for anti-inflammatory treatment of uveitis associated with juvenile idiopathic arthritis. Semin Arthritis Rheum 2018; 49:43-55. [PMID: 30595409 DOI: 10.1016/j.semarthrit.2018.11.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [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: 08/20/2018] [Revised: 11/27/2018] [Accepted: 11/29/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Uveitis in juvenile idiopathic arthritis (JIAU) is frequently associated with the development of complications and visual loss. Topical corticosteroids are the first line therapy, and disease modifying anti-rheumatic drugs (DMARDs) are commonly used. However, treatment has not been standardized. METHODS Interdisciplinary guideline were developed with representatives from the German Ophthalmological Society, Society for Paediatric Rheumatology, Professional Association of Ophthalmologists, German Society for Rheumatology, parents' group, moderated by the Association of the Scientific Medical Societies in Germany. A systematic literature analysis in MEDLINE was performed, evidence and recommendations were graded, an algorithm for anti-inflammatory treatment and final statements were discussed in a consensus meeting (Nominal Group Technique), a preliminary draft was fine-tuned and discussed thereafter by all participants (Delphi procedure). RESULTS Consensus was reached on recommendations, including a standardized treatment strategy according to uveitis severity in the individual patient. Thus, methotrexate shall be introduced for uveitis not responding to low-dose (≤ 2 applications/day) topical corticosteroids, and a TNFalpha antibody (preferably adalimumab) used, if uveitis inactivity is not achieved. In very severe active uveitis with uveitis-related deterioration of vision, systemic corticosteroids should be considered for bridging until DMARDs take effect. If TNFalpha antibodies fail to take effect or lose effect, another biological should be selected (tocilizumab, abatacept or rituximab). De-escalation of DMARDs should be preceded by a period of ≥ 2 years of uveitis inactivity. CONCLUSIONS An interdisciplinary, evidence-based treatment guideline for JIAU is presented.
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Affiliation(s)
- A Heiligenhaus
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany.
| | - K Minden
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - C Tappeiner
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - H Baus
- The Participation of the Following Bodies: Parents' Group for Children with Uveitis and their Families, Germany
| | - B Bertram
- Professional Association of Ophthalmologists (BVA), Germany
| | - C Deuter
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - I Foeldvari
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - D Föll
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - M Frosch
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - G Ganser
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - M Gaubitz
- German Society of Rheumatology (DGRh), Germany
| | - A Günther
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - C Heinz
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - G Horneff
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - C Huemer
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - I Kopp
- Association of the Scientific Medical Societies in Germany (AWMF), Germany
| | - C Lommatzsch
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - T Lutz
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - H Michels
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - T Neß
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - U Neudorf
- The Society for Paediatric Rheumatology (GKJR), Germany
| | - U Pleyer
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - M Schneider
- German Society of Rheumatology (DGRh), Germany
| | | | - S Thurau
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - M Zierhut
- Department of Ophthalmology, Guideline of the German Ophthalmological Society (DOG), St. Franziskus Hospital, Hohenzollernring 74, 48145 Muenster, Germany
| | - H W Lehmann
- The Society for Paediatric Rheumatology (GKJR), Germany
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Kletzl H, Czech C, Cleary Y, Sturm S, Günther A, Baranello G, Mercuri E, Servais L, Day J, Deconinck N, Klein A, Darras B, Masson R, Kirschner J, Goemans N, Pera M, Chiriboga C, Fischer D, Gorni K, Khwaja O. SMA THERAPIES II AND BIOMARKERS. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.307] [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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Günther A, Aaberge L, Abildgaard A, Ragnarsson A, Edvardsen T, Jakobsen J, Andersen R. Coronary computed tomography in heart transplant patients: detection of significant stenosis and cardiac allograft vasculopathy, image quality, and radiation dose. Acta Radiol 2018; 59:1066-1073. [PMID: 29260577 DOI: 10.1177/0284185117748354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Background Cardiac allograft vasculopathy (CAV) is an accelerated form of atherosclerosis unique to heart transplant (HTX) patients. Purpose To investigate the detection of significant coronary artery stenosis and CAV, determinants of image quality, and the radiation dose in coronary computed tomography angiography (CCTA) of HTX patients with 64-slice multidetector CT (64-MDCT). Material and Methods Fifty-two HTX recipients scheduled for invasive coronary angiography (ICA) were prospectively enrolled and underwent CCTA before ICA with intravascular ultrasound (IVUS). Results Interpretable CCTA images were acquired in 570 (95%) coronary artery segments ≥2 mm in diameter. Sensitivity, specificity, and positive and negative predictive values of CCTA for the detection of segments with significant stenosis (lumen reduction ≥50%) on ICA were 100%, 98%, 7.7%, and 100%, respectively. Twelve significant stenoses were located in segments with uninterpretable image quality or vessel diameter <2 mm; only one was eligible for intervention. IVUS detected CAV (maximal intimal thickness ≥0.5 mm) in 33/41 (81%) patients; CCTA and ICA identified CAV (any wall or luminal irregularity) in 18 (44%) and 14 (34%) of these 33 patients, respectively. The mean estimated radiation dose was 19.0 ± 3.4 mSv for CCTA and 5.7 ± 3.3 mSv for ICA ( P < 0.001). Conclusion CCTA with interpretable image quality had a high negative predictive value for ruling out significant stenoses suitable for intervention. The modest detection of CAV by CCTA implied a limited value in identifying subtle CAV. The high estimated radiation dose for 64-MDCT is of concern considering the need for repetitive examinations in the HTX population.
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Affiliation(s)
- Anne Günther
- Department of Radiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lars Aaberge
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Andreas Abildgaard
- Department of Radiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Asgrimur Ragnarsson
- Department of Radiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Thor Edvardsen
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Jarl Jakobsen
- Department of Radiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Rune Andersen
- Department of Radiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
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Günther A, Weisner N, Richter C. Vaginale Untersuchung bei Geburt im Rettungsdienst. Notf Rett Med 2018. [DOI: 10.1007/s10049-018-0476-x] [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]
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Röska B, Park SH, Behal D, Hess KU, Günther A, Benka G, Pfleiderer C, Hoelzel M, Kimura T. Determination of the hydrogen-bond network and the ferrimagnetic structure of a rockbridgeite-type compound, [Formula: see text]. J Phys Condens Matter 2018; 30:235401. [PMID: 29701605 DOI: 10.1088/1361-648x/aac0cd] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Applying neutron powder diffraction, four unique hydrogen positions were determined in a rockbridgeite-type compound, [Formula: see text] [Formula: see text]. Its honeycomb-like H-bond network running without interruption along the crystallographic [Formula: see text] axis resembles those in alkali sulphatic and arsenatic oxyhydroxides. They provide the so-called dynamically disordered H-bond network over which protons are superconducting in a vehicle mechanism. This is indicated by dramatic increases of dielectric constant and loss factor at room temperature. The relevance of static and dynamic disorder of OH and HOH groups are explained in terms of a high number of structural defects at octahedral chains alternatingly half-occupied by [Formula: see text] cations. The structure is built up by unusual octahedral doublet, triplet, and quartet clusters of aliovalent 3d transition metal cations, predicting complicate magnetic ordering and interaction. The ferrimagnetic structure below the Curie temperature [Formula: see text]-83 K could be determined from the structure analysis with neutron diffraction data at 25 K.
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Affiliation(s)
- B Röska
- Department of Geo- and Environmental Sciences, Section of Crystallography, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
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Polke M, Behr J, Kabitz H, Neurohr C, Leuschner G, Prasse A, Bonella F, Koschel D, Günther A, Wälscher J, Herth FJF, Kreuter M. Status zur Diagnostik und Therapie der akuten Exazerbation der idiopathischen Lungenfibrose in Deutschland – ein weites Feld! Pneumologie 2018. [DOI: 10.1055/s-0037-1619401] [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)
- M Polke
- Zentrum für Interstitielle und Seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - J Behr
- Klinik für Pneumologie, Asklepios Fachklinik München-Gauting; Medizinische Klinik und Poliklinik V, Klinikum der Universität München, Großhadern; Schwerpunkt Pneumologie, Klinikum Großhadern der LMU; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - H Kabitz
- II. Medizinische Klinik, Pneumologie, Kardiologie, Internistische Intensivmedizin, Klinikum Konstanz
| | - C Neurohr
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München, Großhadern; Schwerpunkt Pneumologie, Klinikum Großhadern der LMU; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - G Leuschner
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München, Großhadern; Schwerpunkt Pneumologie, Klinikum Großhadern der LMU; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - A Prasse
- Klinik für Pneumologie, Medizinische Hochschule Hannover; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - F Bonella
- Schwerpunkt Interstitielle und Seltene Lungenkrankheiten, Ruhrlandklinik, Universitätsmedizin Essen
| | - D Koschel
- Zentrum für Pneumologie, Thorax- und Gefäßchirurgie, Fachkrankenhaus Coswig GmbH
| | - A Günther
- Med. Klinik II, Klinische Forschergruppe 'Lungenfibrose', Universitätsklinikum Gießen und Marburg; Lungenfachklinik Waldhof-Elgershausen, Greifenstein; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - J Wälscher
- Zentrum für Interstitielle und Seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - FJF Herth
- Zentrum für Interstitielle und Seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - M Kreuter
- Zentrum für Interstitielle und Seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg; Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
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Karwal M, Ruppert C, Seeger W, Günther A, Korfei M. Charakterisierung der therapeutischen Effizienz von Histondeacetylase (HDAC)-Inhibitoren hinsichtlich der Modulierung von pro-koagulatorischen und fibrinolytischen Signalwegen in Lungenfibroblasten von Patienten mit idiopathischer pulmonaler Fibrose (IPF). Pneumologie 2018. [DOI: 10.1055/s-0037-1619427] [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)
- M Karwal
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (BFS), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - C Ruppert
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (BFS), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - W Seeger
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (BFS), Excellence Cluster Cardio-Pulmonary System (ECCPS), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (Dzl); Max-Planck-Institut für Herz- und Lungenforschung
| | - A Günther
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (BFS), Excellence Cluster Cardio-Pulmonary System (ECCPS), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL); Agaplesion Pneumologische Klinik Waldhof-Elgershausen; European IPF Network and European IPF Registry
| | - M Korfei
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (BFS), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
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Ruppert C, Korfei M, Henneke I, Seeger W, Günther A. Rolle des Hepatozytenwachstumsfaktor (HGF) in der gesunden und geschädigten Lunge. Pneumologie 2018. [DOI: 10.1055/s-0037-1619432] [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)
- C Ruppert
- Medizinische Klinik II, Universities of Gießen & Marburg Lung Center (UGMLC), Justus-Liebig Universität Gießen, Deutsches Zentrum für Lungenforschung (DZL)
| | - M Korfei
- Medizinische Klinik II, Universities of Gießen & Marburg Lung Center (UGMLC), Justus-Liebig Universität Gießen, Deutsches Zentrum für Lungenforschung (DZL)
| | - I Henneke
- Medizinische Klinik II, Universities of Gießen & Marburg Lung Center (UGMLC), Justus-Liebig Universität Gießen, Deutsches Zentrum für Lungenforschung (DZL)
| | - W Seeger
- Medizinische Klinik II, Universities of Gießen & Marburg Lung Center (UGMLC), Justus-Liebig Universität Gießen, Deutsches Zentrum für Lungenforschung (DZL)
| | - A Günther
- Medizinische Klinik II, Universities of Gießen & Marburg Lung Center (UGMLC), Justus-Liebig Universität Gießen, Deutsches Zentrum für Lungenforschung (DZL); Agaplesion Lungenklinik Waldhof Elgershausen, Greifenstein
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Kreuter M, Herth FJF, Wacker M, Witt S, Kabitz HJ, Hagmeyer L, Hammerl P, Esselmann A, Wiederholf C, Skowasch D, Stolpe C, Joest M, Veitshans S, Leidl R, Hellmann A, Pfeifer M, Behr J, Kauschka D, Mall M, Günther A, Markart P. Diagnostik und Therapie von Patienten mit interstitiellen Lungenerkrankungen in Deutschland – das EXCITING ILD Register. Pneumologie 2018. [DOI: 10.1055/s-0037-1619191] [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)
- M Kreuter
- Zentrum für Interstitielle und Seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik; Universitätsklinikum Heidelberg und Translationales Zentrum für Lungenforschung Heidelberg (TLRC); Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - FJF Herth
- Centre for Interstitial and Rare Lung Diseases, Pneumology and Respiratory Critical Care Medicine, Thoraxklinik, University of Heidelberg
| | - M Wacker
- Institute of Health Economics and Healthcare Management, Helmholtz Centre Munich GmbH, German Research Centre for Environmental Health, Member of the German Centre for Lung Research (DZL), Comprehensive Pneumology Centre Munich (CPC-M)
| | - S Witt
- Institute of Health Economics and Healthcare Management, Helmholtz Centre Munich GmbH, German Research Centre for Environmental Health, Member of the German Centre for Lung Research (DZL), Comprehensive Pneumology Centre Munich (CPC-M)
| | | | - L Hagmeyer
- Clinic of Pneumology and Allergology, Center of Sleep Medicine and Respiratory Care, Hospital Bethanien Solingen
| | | | - A Esselmann
- Outpatient Center for Pulmonology, Warendorf
| | | | - D Skowasch
- Medical Clinic II, University Hospital Bonn
| | - C Stolpe
- Outpatient Center for Pulmonology, Ibbenbüren
| | - M Joest
- Malteser Center for Pulmonology and Allergology, Bonn
| | - S Veitshans
- Outpatient Center for Pulmonology, Böblingen
| | - R Leidl
- Institute of Health Economics and Healthcare Management, Helmholtz Centre Munich GmbH, German Research Centre for Environmental Health, Member of the German Centre for Lung Research (DZL), Comprehensive Pneumology Centre Munich (CPC-M)
| | - A Hellmann
- Outpatient Center for Pulmonology, Augsburg
| | - M Pfeifer
- Klinik Donaustauf und Universitätsklinikum Regensburg
| | | | | | - M Mall
- Translational Pulmonology, University of Heidelberg, Germany, Member of the German Center for Lung Research (TLRC)
| | - A Günther
- Universitätsklinikum Gießen und Marburg
| | - P Markart
- Medical Clinic II, University Hospital Gießen, Universities of Gießen and Marburg Lung Centre (Ugmlc), Member and Medical Clinic V (Pneumology), Cardiothoracic Centre, Campus Fulda, University Medicine Marburg
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Korfei M, Stelmaszek D, Skwarna S, Chillappagari S, Bach A, MacKenzie B, Ruppert C, Mahavadi P, Klepetko W, Fink L, Seeger W, Savai Pullamsetti S, Krämer OH, Günther A. In vitro-Vergleich der antifibrotischen Effizienz des pan-HDAC-Inhibitors LBH589 mit dem IPF-Medikament Pirfenidon in Lungenfibroblasten von Patienten mit IPF. Pneumologie 2018. [DOI: 10.1055/s-0037-1619243] [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)
- M Korfei
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - D Stelmaszek
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - S Skwarna
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - S Chillappagari
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - A Bach
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - B MacKenzie
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - C Ruppert
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - P Mahavadi
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL)
| | - W Klepetko
- Abteilung für Thoraxchirurgie, Allgemeines Krankenhaus der Stadt Wien; European Ipf Network and European Ipf Registry
| | - L Fink
- Institut für Pathologie und Zytologie, Member of the German Center for Lung Research (DZL)
| | - W Seeger
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Member of the German Center for Lung Research (DZL); Excellence Cluster Cardio-Pulmonary System (ECCPS); Max-Planck-Institut für Herz- und Lungenforschung, Gießen
| | - S Savai Pullamsetti
- Max-Planck-Institut für Herz- und Lungenforschung, Member of the German Center for Lung Research (DZL); Excellence Cluster Cardio-Pulmonary System (Eccps)
| | - OH Krämer
- Institut für Toxikologie, Universitätsmedizin Mainz
| | - A Günther
- Medizinische Klinik II und Biomedizinisches Forschungszentrum Seltersberg (Bfs), Justus-Liebig-Universität Gießen, Excellence Cluster Cardio-Pulmonary System (Eccps), Member of the German Center for Lung Research (DZL); European Ipf Network and European Ipf Registry; Agaplesion Pneumologische Klinik Waldhof-Elgershausen
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Günther K, Seeger W, Günther A, Korfei M. Untersuchung uncharakterisierter SP-A2 Varianten hinsichtlich der Induktion von Endoplasmatischem Retikulum (ER)-Stress bei der idiopathischen pulmonalen Fibrose (IPF). Pneumologie 2018. [DOI: 10.1055/s-0037-1619297] [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)
- K Günther
- Biomedizinisches Forschungszentrum Seltersberg (BFS); Universität Gießen und Marburg Lungen Zentrum (Ugmlc) und Mitglied des DZL
| | - W Seeger
- Biomedizinisches Forschungszentrum Seltersberg (BFS); Universität Gießen und Marburg Lungen Zentrum (UGMLC) und Mitglied des DZL; Excellence Cluster Cardio-Pulmonary Systems (ECCPS)
| | - A Günther
- Biomedizinisches Forschungszentrum Seltersberg (BFS) und Agaplesion Pneumologische Klinik Waldhof-Elgershausen; Universität Gießen und Marburg Lungen Zentrum (UGMLC) und Mitglied des DZL; Excellence Cluster Cardio-Pulmonary Systems (ECCPS)
| | - M Korfei
- Biomedizinisches Forschungszentrum Seltersberg (BFS); Universität Gießen und Marburg Lungen Zentrum (Ugmlc) und Mitglied des DZL
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Klingner CM, Herdtle S, Brodoehl S, Hohenstein C, Wild T, Behringer W, Witte OW, Günther A. Akuter Schlaganfall – Aufgabe für Notarzt oder Rettungsassistent? Notf Rett Med 2018. [DOI: 10.1007/s10049-017-0398-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Krauss E, Zoelitz J, Wagner J, Barretto G, Degen M, Seeger W, Günther A. The use of electronic nose technology for the detection of lung cancer: analysis of exhaled volatile compounds by Aeonose®. Pneumologie 2018. [DOI: 10.1055/s-0037-1619179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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)
- E Krauss
- European IPF Registry & Biobank (eurIPFreg), Universities of Gießen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Excellence Cluster Cardiopulmonary System (ECCPS), Gießen
| | - J Zoelitz
- European IPF Registry & Biobank (eurIPFreg), Universities of Gießen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Excellence Cluster Cardiopulmonary System (ECCPS), Gießen
| | - J Wagner
- European IPF Registry & Biobank (eurIPFreg), Universities of Gießen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Excellence Cluster Cardiopulmonary System (ECCPS), Gießen
| | | | - M Degen
- Agaplesion Lung Clinic Waldhof-Elgershausen, Greifenstein
| | - W Seeger
- European IPF Registry & Biobank (eurIPFreg), Universities of Gießen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Excellence Cluster Cardiopulmonary System (ECCPS), Gießen
| | - A Günther
- European IPF Registry & Biobank (eurIPFreg), Universities of Gießen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Excellence Cluster Cardiopulmonary System (ECCPS), Gießen; Agaplesion Lung Clinic Waldhof-Elgershausen, Greifenstein
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Abstract
SummaryElevated procoagulant and suppressed fibrinolytic activities are regularly encountered in different forms of clinical and experimental fibrosis of the lungs and the kidneys. Although primarily serving to provide a provisional matrix of repair largely consisting of fibrin and fibronectin, the involved procoagulant serine proteases and protease inhibitors may also exert distinct cellular downstream signaling events modifying the fibrotic reponse.In this review, evidence for an impaired regulation of coagulation and fibrinolysis factors in clinical and experimental lung and renal fibrosis is provided and the role of PAR (protease activated receptor) induced profibrotic and HGF (hepatocyte growth factor) elicited antifibrotic cellular events is worked out. In view of experiments obtained in animal models of lung and renal fibrosis, the potential therapeutic usefulness of anticoagulant or profibrinolytic strategies is discussed.
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Günther A, Mosavi P, Ruppert C, Heinemann S, Temmesfeld B, Velcovsky HG, Morr H, Grimminger F, Walmrath D, Seeger W. Enhanced Tissue Factor Pathway Activity and Fibrin Turnover in the Alveolar Compartment of Patients with Interstitial Lung Disease. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1613933] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryBronchoalveolar lavage fluids (BALF) from patients with hyper- sensitivity pneumonitis (HP; n = 35), idiopathic pulmonary fibrosis (IPF, n = 41) and sarcoidosis (SARC, n = 48) were investigated for alterations in the alveolar hemostatic balance. Healthy individuals (n = 21) served as Controls. Procoagulant activity (PCA), tissue factor (TF) activity and F VII activity were assessed by means of specific recalcification assays. The overall fibrinolytic activity (FA) was measured using the 125I-labeled fibrin plate assay. Fibrinopeptide A (FP-A), D-Dimer, plasminogen activators (PA) of the urokinase (u-PA) or tissue type (t-PA), PA-Inhibitor I (PAI-1) and α2-antiplasmin (α2-AP) were determined by ELISA technique. As compared to Controls, all groups with interstitial lung disease (ILD) displayed an increase in BALF PCA by approximately one order of magnitude, and this was ascribed to enhanced TF activity by >98%. Accordingly, F VII-activity was increased in all ILD groups, and elevated FP-A levels were noted. There was no significant difference in procoagulant activi- ties between the different ILD entities, but the increase in TF was significantly correlated with deterioration of lung compliance. Overall fibrinolytic activity did not significantly differ between ILD entities and Controls, although some reduction in IPF subjects was observed. Nevertheless, changes in the profile of the different pro- and anti- fibrinolytic compounds were noted. U-PA, but not t-PA levels were significantly reduced in all ILD groups. α2-AP was markedly elevated throughout, whereas PAI-1 levels were lowered. As a balance of enhanced procoagulant and sustained overall fibrinolytic activity, lavage D-dimer levels were elevated by more than one order of magnitude in all ILD patients. We conclude that the predominant alteration in alveolar hemostatic balance in all groups of ILD patients is an enhancement in TF factor pathway activity. Concomitantly, various compounds of the (anti-)fibrinolytic pathways present with altered concentrations, but the overall BALF fibrinolytic activity is largely unchanged. The net enhancement of fibrin turnover is significantly correlated with the decrease in lung compliance.
Abbreviations: α2-AP – α2-antiplasmin; ARDS – acute respiratory distress syndrome; BAL – bronchoalveolar lavage; BALF – BAL fluids; BSA – bovine serum albumin; FEV1 – forced expired volume within 1 s; FP-A – fibrinopeptide A; FVC – forced vital capacity; ILD – interstitial lung disease; IPF – idiopathic pulmonary fibrosis; HP – hypersensitivity pneumonitis; PAI-1 – plasminogen-activator-inhibitor-1; PBS – phosphate buffered saline; PCA – procoagulant activity; PL – phospholipid; PPQ – phospholipid-proteinquotient; SARC – sarcoidosis; t-PA – tissue-type plasminogen activator; u-PA – urokinase-type plasminogen activator
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Kirkhus NE, Skare Ø, Ulvestad B, Aaløkken TM, Günther A, Olsen R, Thomassen Y, Lund MB, Ellingsen DG. Pulmonary function and high-resolution computed tomography examinations among offshore drill floor workers. Int Arch Occup Environ Health 2017; 91:317-326. [PMID: 29196803 PMCID: PMC5845060 DOI: 10.1007/s00420-017-1281-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 06/20/2017] [Accepted: 11/27/2017] [Indexed: 11/24/2022]
Abstract
Purpose The aim of this study was to assess short-term changes in pulmonary function in drill floor workers currently exposed to airborne contaminants generated as a result of drilling offshore. We also aimed to study the prevalence of pulmonary fibrosis using high-resolution computed tomography (HRCT) scans of another group of previously exposed drill floor workers. Methods Pulmonary function was measured before and after a 14-day work period in a follow-up study of 65 drill floor workers and 65 referents. Additionally, 57 other drill floor workers exposed to drilling fluids during the 1980s were examined with HRCT of the lungs in a cross-sectional study. Results The drill floor workers had a statistically significant decline in forced expiratory volume in 1 s (FEV1) across the 14-day work period after adjustment for diurnal variations in pulmonary function (mean 90 mL, range 30–140 mL), while the small decline among the referents (mean 20 mL, range − 30 to 70 mL) was not of statistical significance. Larger declines in FEV1 among drill workers were associated with the fewer number of days of active drilling. There were no signs of pulmonary fibrosis related to oil mist exposure among the other previously exposed drill floor workers. Conclusion After 14 days offshore, a statistically significant decline in FEV1 was observed in the drill floor workers, which may not be related to oil mist exposure. No pulmonary fibrosis related to oil mist exposure was observed.
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Affiliation(s)
- Niels E Kirkhus
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway. .,Municipality of Horten, P.O. Box 10, 3191, Horten, Norway.
| | - Øivind Skare
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway
| | - Bente Ulvestad
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway
| | - Trond Mogens Aaløkken
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Anne Günther
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Raymond Olsen
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway
| | - Yngvar Thomassen
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway
| | - May Brit Lund
- Department of Respiratory Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Dag G Ellingsen
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway
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Künstler ECS, Finke K, Günther A, Klingner C, Witte O, Bublak P. Motor-cognitive dual-task performance: effects of a concurrent motor task on distinct components of visual processing capacity. Psychol Res 2017; 82:177-185. [PMID: 29196834 PMCID: PMC5816117 DOI: 10.1007/s00426-017-0951-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 11/22/2017] [Indexed: 11/26/2022]
Abstract
Dual tasking, or the simultaneous execution of two continuous tasks, is frequently associated with a performance decline that can be explained within a capacity sharing framework. In this study, we assessed the effects of a concurrent motor task on the efficiency of visual information uptake based on the 'theory of visual attention' (TVA). TVA provides parameter estimates reflecting distinct components of visual processing capacity: perceptual threshold, visual processing speed, and visual short-term memory (VSTM) storage capacity. Moreover, goodness-of-fit values and bootstrapping estimates were derived to test whether the TVA-model is validly applicable also under dual task conditions, and whether the robustness of parameter estimates is comparable in single- and dual-task conditions. 24 subjects of middle to higher age performed a continuous tapping task, and a visual processing task (whole report of briefly presented letter arrays) under both single- and dual-task conditions. Results suggest a decline of both visual processing capacity and VSTM storage capacity under dual-task conditions, while the perceptual threshold remained unaffected by a concurrent motor task. In addition, goodness-of-fit values and bootstrapping estimates support the notion that participants processed the visual task in a qualitatively comparable, although quantitatively less efficient way under dual-task conditions. The results support a capacity sharing account of motor-cognitive dual tasking and suggest that even performing a relatively simple motor task relies on central attentional capacity that is necessary for efficient visual information uptake.
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Affiliation(s)
- E C S Künstler
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.
| | - K Finke
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - A Günther
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - C Klingner
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - O Witte
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - P Bublak
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
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Baumbach P, Götz T, Günther A, Weiss T, Meissner W. Chronic intensive care-related pain: Exploratory analysis on predictors and influence on health-related quality of life. Eur J Pain 2017; 22:402-413. [PMID: 29105897 DOI: 10.1002/ejp.1129] [Citation(s) in RCA: 9] [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] [Accepted: 09/16/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND There is growing evidence for the development of chronic pain after intensive care. Nonetheless, there is only limited knowledge about factors leading to chronic intensive care-related pain (CIRP). Thus, the primary objective was the identification of predictors of CIRP. Moreover, we aimed to assess the impact of CIRP on patients' health-related quality of Life (HRQOL). METHODS Comprehensive information on patients' pain before ICU admission and present pain was collected longitudinally by means of the German Pain Questionnaire 6 and 12 months after ICU discharge (ICUDC ). In addition, a subsample of patients underwent Quantitative Sensory Testing (QST). We used Generalized Estimating Equations to identify predictors of CIRP with logistic regression models. RESULTS In total, 204 patients (197/159 at 6/12 months after ICUDC ) were available for the analyses. In the multivariate models, moderate to severe average pain in the 4 weeks after ICUDC , lower age, female sex, increased inflammation and chronic pain conditions and increased levels of anxiety before ICU admission were predictive for CIRP. In addition, small fibre deficits and lower disease severity were associated with CIRP in the QST subsample (81 patients, 77/55 at 6/12 months after ICUDC ). Patients with CIRP reported significantly lower HRQOL than patients without CIRP. CONCLUSIONS Chronic intensive care-related pain is associated with specific decrements in HRQOL. Knowledge about the identified predictors is of clinical and scientific importance and might help to reduce the incidence of CIRP. SIGNIFICANCE Chronic intensive care-related pain is associated with specific decrements in health-related quality of life. While most of the identified predictors for CIRP can only be considered as risk factors, especially adequate (post-) acute pain management should be studied as preventive strategy.
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Affiliation(s)
- P Baumbach
- Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC), Jena University Hospital, Germany.,Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Germany
| | - T Götz
- Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC), Jena University Hospital, Germany.,Biomagnetic Center, Hans-Berger-Klinik for Neurology, Jena University Hospital, Germany
| | - A Günther
- Biomagnetic Center, Hans-Berger-Klinik for Neurology, Jena University Hospital, Germany
| | - T Weiss
- Department of Biological and Clinical Psychology, Friedrich Schiller University of Jena, Germany
| | - W Meissner
- Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC), Jena University Hospital, Germany.,Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Germany
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Günther A, Andersen R, Gude E, Jakobsen J, Edvardsen T, Sandvik L, Abildgaard A, Aaberge L, Gullestad L. The predictive value of coronary artery calcium detected by computed tomography in a prospective study on cardiac allograft vasculopathy in heart transplant patients. Transpl Int 2017; 31:82-91. [DOI: 10.1111/tri.13057] [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: 02/16/2017] [Revised: 04/10/2017] [Accepted: 08/30/2017] [Indexed: 11/26/2022]
Affiliation(s)
- Anne Günther
- Department of Radiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
- Faculty of Medicine; University of Oslo; Oslo Norway
| | - Rune Andersen
- Department of Radiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
| | - Einar Gude
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
| | - Jarl Jakobsen
- Department of Radiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
- Faculty of Medicine; University of Oslo; Oslo Norway
| | - Thor Edvardsen
- Faculty of Medicine; University of Oslo; Oslo Norway
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
| | - Leiv Sandvik
- Oslo Centre for Biostatistics and Epidemiology; Oslo University Hospital; Oslo Norway
- Faculty of Dentistry; University of Oslo; Oslo Norway
| | - Andreas Abildgaard
- Department of Radiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
| | - Lars Aaberge
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
| | - Lars Gullestad
- Faculty of Medicine; University of Oslo; Oslo Norway
- Department of Cardiology; Oslo University Hospital, Rikshospitalet; Oslo Norway
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