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Wagner N, Crippa L, Amaricci A, Hansmann P, Klett M, König EJ, Schäfer T, Sante DD, Cano J, Millis AJ, Georges A, Sangiovanni G. Mott insulators with boundary zeros. Nat Commun 2023; 14:7531. [PMID: 37985660 PMCID: PMC10662449 DOI: 10.1038/s41467-023-42773-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023] Open
Abstract
The topological classification of electronic band structures is based on symmetry properties of Bloch eigenstates of single-particle Hamiltonians. In parallel, topological field theory has opened the doors to the formulation and characterization of non-trivial phases of matter driven by strong electron-electron interaction. Even though important examples of topological Mott insulators have been constructed, the relevance of the underlying non-interacting band topology to the physics of the Mott phase has remained unexplored. Here, we show that the momentum structure of the Green's function zeros defining the "Luttinger surface" provides a topological characterization of the Mott phase related, in the simplest description, to the one of the single-particle electronic dispersion. Considerations on the zeros lead to the prediction of new phenomena: a topological Mott insulator with an inverted gap for the bulk zeros must possess gapless zeros at the boundary, which behave as a form of "topological antimatter" annihilating conventional edge states. Placing band and Mott topological insulators in contact produces distinctive observable signatures at the interface, revealing the otherwise spectroscopically elusive Green's function zeros.
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Affiliation(s)
- N Wagner
- Institut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany
| | - L Crippa
- Institut für Theoretische Physik und Astrophysik and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg, 97074, Würzburg, Germany
| | - A Amaricci
- CNR-IOM, Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Via Bonomea 265, 34136, Trieste, Italy
| | - P Hansmann
- Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - M Klett
- Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - E J König
- Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - T Schäfer
- Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - D Di Sante
- Department of Physics and Astronomy, University of Bologna, Bologna, Italy
- Center for Computational Quantum Physics, Flatiron Institute, New York, NY, USA
| | - J Cano
- Center for Computational Quantum Physics, Flatiron Institute, New York, NY, USA
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York, NY, 11974, USA
| | - A J Millis
- Center for Computational Quantum Physics, Flatiron Institute, New York, NY, USA
- Department of Physics, Columbia University, New York, NY, USA
| | - A Georges
- Center for Computational Quantum Physics, Flatiron Institute, New York, NY, USA
- Collège de France, PSL University, 11 place Marcelin Berthelot, 75005, Paris, France
- Department of Quantum Matter Physics, University of Geneva, 24 quai Ernest-Ansermet, 1211, Geneva, Switzerland
- CPHT, CNRS, École Polytechnique, IP Paris, F-91128, Palaiseau, France
| | - G Sangiovanni
- Institut für Theoretische Physik und Astrophysik and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg, 97074, Würzburg, Germany.
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Paul B, Marujo Teixeira SC, Furst EM, Lenhoff AM, Wagner N. Influence of high hydrostatic pressure on protein clustering: Implications for processing and macroscopic crystallization. Biophys J 2023; 122:352a. [PMID: 36783786 DOI: 10.1016/j.bpj.2022.11.1952] [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: 02/12/2023] Open
Affiliation(s)
- Brian Paul
- Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, DE, USA; Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, USA
| | - Susana Cristina Marujo Teixeira
- Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, DE, USA; Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, USA
| | - Eric M Furst
- Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Abraham M Lenhoff
- Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Norman Wagner
- Department of Chemical & Biomolecular Engineering, University of Delaware, Newark, DE, USA
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Frazao C, Wagner N, Rabe K, Walther T. Construction of a synthetic metabolic pathway for direct production of 2,4‐dihydroxybutyric acid from one‐ and two‐carbon alcohols. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- C. J. R. Frazao
- TU Dresden Institute of Natural Materials Technology Bergstr. 120 01062 Dresden Germany
| | - N. Wagner
- TU Dresden Institute of Natural Materials Technology Bergstr. 120 01062 Dresden Germany
| | - K. Rabe
- TU Dresden Institute of Natural Materials Technology Bergstr. 120 01062 Dresden Germany
| | - T. Walther
- TU Dresden Institute of Natural Materials Technology Bergstr. 120 01062 Dresden Germany
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Wagner N, Frazão C, Walther T. Ethylene glycol is an interesting platform molecule for microbial CO
2
‐based product syntheses. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- N. Wagner
- TU Dresden Chair of Bioprocess Engineering Bergstr. 120 01069 Dresden Germany
| | - C. Frazão
- TU Dresden Chair of Bioprocess Engineering Bergstr. 120 01069 Dresden Germany
| | - T. Walther
- TU Dresden Chair of Bioprocess Engineering Bergstr. 120 01069 Dresden Germany
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Ohl K, Subramanyam SH, Verjans E, Clarner T, Böll S, Costa Filho IG, Li Z, Gan L, Schmitt E, Bopp T, Wagner N, Schulz S, Goodarzi T, Scheld M, Floess S, Huehn J, Lambrecht B, Beyaert R, Look T, Zenke M, Tenbrock K. Foxp3-specific deletion of CREB generates ST-2 positive regulatory
T-cells with shifts towards type 2 immune responses. Klinische Pädiatrie 2022. [DOI: 10.1055/s-0042-1754516] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- K Ohl
- RWTH Aachen, Pediatrics, Aachen, Germany
| | | | - E Verjans
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - T Clarner
- RWTH Aachen, Anatomy, Aachen, Germany
| | - S Böll
- RWTH Aachen, Pediatrics, Aachen, Germany
| | | | - Z Li
- RWTH Aachen, Computational Genomics, Aachen, Germany
| | - L Gan
- RWTH Aachen, Computational Genomics, Aachen, Germany
| | - E Schmitt
- Institut für Immunologie, Universität Mainz, Mainz,
Germany
| | - T Bopp
- Institut für Immunologie, Universität Mainz, Mainz,
Germany
| | - N Wagner
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - S Schulz
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - T Goodarzi
- RWTH Aachen, Pediatrics, Aachen, Germany
| | - M Scheld
- RWTH Aachen, Anatomy, Aachen, Germany
| | | | | | | | | | - T Look
- RWTH Aachen, Zellbiologie, Aachen, Germany
| | - M Zenke
- RWTH Aachen, Zellbiologie, Aachen, Germany
| | - K Tenbrock
- RWTH Aachen, Pediatrics, Aachen, Germany
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Wagner N, Bade F, Rabe K, Walther T. Engineering
E. coli
for the carbon‐conserving conversion of ethylene glycol to acetyl‐CoA and derived products. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- N. Wagner
- TU Dresden Chair of Bioprocess Engineering Bergstr. 120 01069 Dresden Germany
| | - F. Bade
- TU Dresden Chair of Bioprocess Engineering Bergstr. 120 01069 Dresden Germany
| | - K. Rabe
- TU Dresden Chair of Bioprocess Engineering Bergstr. 120 01069 Dresden Germany
| | - T. Walther
- TU Dresden Chair of Bioprocess Engineering Bergstr. 120 01069 Dresden Germany
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Rein A, Ngo C, Van den Berg M, Böll S, Lassay L, Kontny U, Wagner N, Leonhardt S, Tenbrock K, Verjans E. Characterization of pulmonary function impairment in a pediatric
sickle cell anemia cohort using electrical impedance tomography. Klinische Pädiatrie 2022. [DOI: 10.1055/s-0042-1754474] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- A Rein
- RWTH Aachen University Hospital, Pediatrics, Aachen,
Germany
| | - C Ngo
- Helmholtz Institute for Biomedical Engineering, Medical Information
Technology, Aachen, Germany
| | - M Van den Berg
- Helmholtz Institute for Biomedical Engineering, Medical Information
Technology, Aachen, Germany
| | - S Böll
- RWTH Aachen University Hospital, Pediatrics, Aachen,
Germany
| | - L Lassay
- RWTH Aachen University Hospital, Pediatrics, Aachen,
Germany
| | - U Kontny
- RWTH Aachen University Hospital, Pediatrics, Aachen,
Germany
| | - N Wagner
- RWTH Aachen University Hospital, Pediatrics, Aachen,
Germany
| | - S Leonhardt
- Helmholtz Institute for Biomedical Engineering, Medical Information
Technology, Aachen, Germany
| | - K Tenbrock
- RWTH Aachen University Hospital, Pediatrics, Aachen,
Germany
| | - E Verjans
- RWTH Aachen University Hospital, Pediatrics, Aachen,
Germany
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King N, Linden B, Cunningham S, Rivera D, Rose J, Wagner N, Mulder J, Adams M, Baxter R, Duffy A. The feasibility and effectiveness of a novel online mental health literacy course in supporting university student mental health: a pilot study. BMC Psychiatry 2022; 22:515. [PMID: 35907852 PMCID: PMC9338643 DOI: 10.1186/s12888-022-04139-z] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 07/13/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND There is a need for effective universal approaches to promote and support university student mental health that are scalable and sustainable. In this pilot study we assess the feasibility and acceptability of a fully-digitalized, comprehensive mental health literacy course co-created with and tailored to the needs of undergraduate students. We also explore preliminary associations with mental health and positive behaviour change. METHODS An accredited online mental health literacy course was developed using state-of-the-art pedagogical principles and a reverse mentorship approach. The course was offered as an interdisciplinary undergraduate elective. Students completed an online survey before and after the 12-week course that collected demographic information and assessed mental health knowledge, emotional self-awareness, mental health, stigma, and health-related behaviors using validated measures. Dependent group t-tests were used to compare pre- and post-course levels of knowledge, mental health, sleep quality and substance use. Mental health outcomes of students who completed the course were compared to an age and sex-matched sample of students not enrolled in the course and who completed the same survey measures over the same academic year. Multivariable linear regression was used to examine the effect of course participation on outcomes at follow-up. RESULTS The course had good uptake and was positively reviewed by participants. Specifically, students found the course engaging, relevant, and applicable, and agreed they would recommend it to their peers. Among course participants there was improvement in mental health knowledge (p < 0.001) and emotional self-awareness (p = 0.02) at course completion. Compared to the matched comparison group, taking the course was associated with reduced alcohol (β = - 0.41, p = 0.01) and cannabis use (β = - 0.35, p = 0.03), and improved sleep quality (β = 1.56, p = 0.09) at the end of the term. CONCLUSIONS Findings suggest that delivering mental health literacy as an online accredited course may be an acceptable and effective way of promoting university student mental health through improved knowledge, emotional self-awareness, and healthy lifestyle choices. As the course is expanded to larger and more diverse student cohorts we will be able to further examine the short and long-term effectiveness of the course in supporting student mental health and the underlying mechanisms.
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Affiliation(s)
- N. King
- grid.410356.50000 0004 1936 8331Department of Public Health Sciences, Queen’s University, Kingston, Canada
| | - B. Linden
- grid.410356.50000 0004 1936 8331Department of Public Health Sciences, Queen’s University, Kingston, Canada ,grid.410356.50000 0004 1936 8331Health Services and Policy Research Institute, Queen’s University, Kingston, Canada
| | - S. Cunningham
- grid.410356.50000 0004 1936 8331Department of Biomedical & Molecular Sciences, Queen’s University, Kingston, Canada
| | - D. Rivera
- grid.17063.330000 0001 2157 2938Department of Pharmacology and Toxicology, University of Toronto, Toronto, Canada
| | - J. Rose
- grid.410356.50000 0004 1936 8331Department of Psychiatry, Queen’s University, Kingston, Canada
| | - N. Wagner
- grid.410356.50000 0004 1936 8331Department of Biomedical & Molecular Sciences, Queen’s University, Kingston, Canada ,grid.410356.50000 0004 1936 8331Office of Professional Development & Educational Scholarship, Queen’s University, Kingston, Canada
| | - J. Mulder
- grid.410356.50000 0004 1936 8331Department of Biomedical & Molecular Sciences, Queen’s University, Kingston, Canada ,grid.410356.50000 0004 1936 8331Office of Professional Development & Educational Scholarship, Queen’s University, Kingston, Canada
| | - M. Adams
- grid.410356.50000 0004 1936 8331Department of Biomedical & Molecular Sciences, Queen’s University, Kingston, Canada ,grid.410356.50000 0004 1936 8331Office of Professional Development & Educational Scholarship, Queen’s University, Kingston, Canada
| | - R. Baxter
- grid.4305.20000 0004 1936 7988Centre for Research Collections, University of Edinburgh Main Library, University of Edinburgh, Edinburgh, UK
| | - A. Duffy
- grid.410356.50000 0004 1936 8331Department of Public Health Sciences, Queen’s University, Kingston, Canada ,grid.410356.50000 0004 1936 8331Department of Psychiatry, Queen’s University, Kingston, Canada ,grid.4991.50000 0004 1936 8948Department of Psychiatry, University of Oxford, Oxford, UK
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Schafft M, Wagner N, Schuetz T, Veith M. A near-natural experiment on factors influencing larval drift in Salamandra salamandra. Sci Rep 2022; 12:3275. [PMID: 35228557 PMCID: PMC8885912 DOI: 10.1038/s41598-022-06355-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/10/2021] [Indexed: 11/09/2022] Open
Abstract
The larval stage of the European fire salamander (Salamandra salamandra) inhabits both lentic and lotic habitats. In the latter, they are constantly exposed to unidirectional water flow, which has been shown to cause downstream drift in a variety of taxa. In this study, a closed artificial creek, which allowed us to keep the water flow constant over time and, at the same time, to simulates with predefined water quantities and durations, was used to examine the individual movement patterns of marked larval fire salamanders exposed to unidirectional flow. Movements were tracked by marking the larvae with VIAlpha tags individually and by using downstream and upstream traps. Most individuals showed stationarity, while downstream drift dominated the overall movement pattern. Upstream movements were rare and occurred only on small distances of about 30 cm; downstream drift distances exceeded 10 m (until next downstream trap). The simulated flood events increased drift rates significantly, even several days after the flood simulation experiments. Drift probability increased with decreasing body size and decreasing nutritional status. Our results support the production hypothesis as an explanation for the movements of European fire salamander larvae within creeks.
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Affiliation(s)
- Malwina Schafft
- Department of Biogeography, Trier University, Universitätsring 15, 54296, Trier, Germany.,Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587, Berlin, Germany
| | - Norman Wagner
- Department of Biogeography, Trier University, Universitätsring 15, 54296, Trier, Germany.,Zweckverband Natura Ill-Theel, In der Meulwies 1, 66646, Marpingen, Germany
| | - Tobias Schuetz
- Department of Hydrology, Trier University, Behringstraße 21, 54296, Trier, Germany
| | - Michael Veith
- Department of Biogeography, Trier University, Universitätsring 15, 54296, Trier, Germany.
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Skripnikov A, Wagner N, Shafer J, Beck M, Sherwood E, Burke M. Using localized Twitter activity to assess harmful algal bloom impacts of Karenia brevis in Florida, USA. Harmful Algae 2021; 110:102118. [PMID: 34887016 DOI: 10.1016/j.hal.2021.102118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Red tide blooms of the dinoflagellate Karenia brevis (K. brevis) produce toxic coastal conditions that can impact marine organisms and human health, while also affecting local economies. During the extreme Florida red tide event of 2017-2019, residents and visitors turned to social media platforms to both receive disaster-related information and communicate their own sentiments and experiences. This was the first major red tide event since the ubiquitous use of social media, thus providing unique crowd-sourced reporting of red tide impacts. We evaluated the spatial and temporal accuracy of red tide topic activity on Twitter, taking tweet sentiments and user types (e.g. media, citizens) into consideration, and compared tweet activity with reported red tide conditions, such as K. brevis cell counts, levels of dead fish and respiratory irritation on local beaches. The analysis was done on multiple levels with respect to both locality (e.g., entire Gulf coast, county-level, city-level, zip code tabulation areas) and temporal frequencies (e.g. daily, every three days, weekly), resulting in strong correlations between local per-capita Twitter activity and the actual red tide conditions observed in the area. Moreover, an association was observed between proximity to the affected coastal areas and per-capita counts for relevant tweets. Results show that Twitter presents a trustworthy reflection of the red tide's local impacts and development over time, and can potentially augment the already existing tools for efficient assessment and a more coordinated response to the disaster.
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Affiliation(s)
- A Skripnikov
- New College of Florida, Heiser Natural Sciences Complex, Room E156, 500 College Dr, Sarasota, FL 34243, USA; New College of Florida, Division of Natural Sciences, 500 College Dr, Sarasota, FL 34243, USA.
| | - N Wagner
- New College of Florida, Division of Natural Sciences, 500 College Dr, Sarasota, FL 34243, USA
| | - J Shafer
- Science and Environment Council of Southwest Florida, 1530 Dolphin Street, Suite 4, Sarasota, FL 34236, USA
| | - M Beck
- Tampa Bay Estuary Program, 263 13th Ave S, St. Petersburg, FL 33701, USA
| | - E Sherwood
- Tampa Bay Estuary Program, 263 13th Ave S, St. Petersburg, FL 33701, USA
| | - M Burke
- Tampa Bay Estuary Program, 263 13th Ave S, St. Petersburg, FL 33701, USA
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Weller K, Maurer M, Bauer A, Wedi B, Wagner N, Schliemann S, Kramps T, Baeumer D, Multmeier J, Hillmann E, Staubach P. Epidemiology, comorbidities, and healthcare utilization of patients with chronic urticaria in Germany. J Eur Acad Dermatol Venereol 2021; 36:91-99. [PMID: 34622498 DOI: 10.1111/jdv.17724] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 09/02/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Comprehensive data on the epidemiology and comorbidities of chronic urticaria (CU) in Germany are either limited, or not contemporary. OBJECTIVES To investigate the epidemiology of CU, overall comorbidities and healthcare resource utilized by patients with CU in Germany, using an anonymized statutory health insurance (SHI) database. METHODS Anonymized SHI claims research database of the Institute for Applied Health Research, Berlin [InGef] (01 January 2015-30 September 2018) was used to analyse insured individuals with a confirmed diagnosis of CU (ICD-10-GM codes). Twelve-month diagnosed prevalence and incidence, comorbidities (vs. atopic dermatitis and psoriasis), and healthcare utilization by patients with CU were investigated. RESULTS Of 4 693 772 individuals of all ages listed in the database, 3 538 540 were observable during 2017. Overall, 17 524 patients (˜0.5%) were diagnosed with CU; chronic spontaneous urticaria (CSU: 71.2%), chronic inducible urticaria (CIndU: 19.7%), CSU+CIndU (9.1%). Females, vs. males, had higher diagnosed prevalence (0.62% vs. 0.37%) and diagnosed incidence (0.18% vs. 0.11%) of CU among all patients. Patients most frequently visited general practitioners (41.3% of total visits). Hypertensive diseases (43.5%), lipoprotein metabolism disorders (32.1%) and affective disorders (26.0%) were the most frequently reported comorbidities of special interest. Rates of most comorbidities of special interests were similar to atopic dermatitis and psoriasis patients, and all higher vs. overall population. More than half (54.1%) of all CU patients were not prescribed any treatment. Second-generation H1 -antihistamines were the most commonly prescribed medication for adult (17.9%) and paediatric (27.9%) patients. Patients with CIndU (paediatric, 15.5%; adult, 7.8%) were more often hospitalized versus patients with CSU (paediatric, 9.9%; adult, 4.6%). CONCLUSIONS In Germany, prevalence of CU along with multiple comorbidities may pose increased burden on the healthcare system. Awareness of adhering to treatment guidelines, and aiming for complete control of urticaria, needs to be driven and may improve outcomes.
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Affiliation(s)
- K Weller
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Allergology, Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Berlin, Germany
| | - M Maurer
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Allergology, Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Berlin, Germany
| | - A Bauer
- Department of Dermatology, University Allergy Center, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - B Wedi
- Department of Dermatology and Allergy, Comprehensive Allergy Centre, Hannover Medical School, Hannover, Germany
| | - N Wagner
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - S Schliemann
- Department of Dermatology, University Hospital Jena, Jena, Germany
| | - T Kramps
- Novartis Pharma GmbH, Nuremberg, Germany
| | - D Baeumer
- Novartis Pharma GmbH, Nuremberg, Germany
| | | | - E Hillmann
- Novartis Pharma GmbH, Nuremberg, Germany
| | - P Staubach
- Department of Dermatology, University Medical Center Mainz, Mainz, Germany
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12
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Balato A, Scala E, Ayala F, Bauer A, Crépy MN, Gonçalo M, Duus Johansen J, John SM, Rustemeyer T, Wagner N, Wilkinson M, Giménez-Arnau A. Patch test informed consent form: position statement by European Academy of Dermatology and Venereology Task Force on Contact Dermatitis. J Eur Acad Dermatol Venereol 2021; 35:1957-1962. [PMID: 34286888 DOI: 10.1111/jdv.17483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/27/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND To our knowledge, an international consensus is lacking regarding the development of an adequate informed consent form for a patch test (PT) and the information that should be included in such document. OBJECTIVES The aim of the study was to reach a consensus on the specific points that need to be addressed in a PT consent form. METHODS A Delphi survey, comprising 2 rounds and 1 final discussion, was used to gather and analyse data, which was conducted over the Internet. Each statement that reached a consensus with the respondents (9 expert dermatologists from Europe) was defined as a median consensus score (MED) of ≥7 and agreement among panelists as an interquartile range (IQR) of ≤3. All study participants were members of the EADV task force on contact dermatitis. RESULTS The expert panel addressed several topics that should be included in an informed consent form for a PT: introduction, preparation for PT, testing procedure, allowed activities, adverse events and additional authorizations. CONCLUSIONS Our results assess recommendations regarding points to be contained in an informed consent form for a PR. Future actions towards standardization and harmonization of this specific consent form are needed.
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Affiliation(s)
- A Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - E Scala
- Division of Dermatology and Venereology, Department of Medicine Solna, and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - F Ayala
- Professor Emeritus of Dermatology, University of Naples Federico II, Naples, Italy
| | - A Bauer
- Department of Dermatology, University Allergy Center, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - M-N Crépy
- Department of Occupational and Environmental Diseases, Hôtel-Dieu Hospital, AP-HP, University Hospital of Centre of Paris, Paris, France.,Department of Dermatology, Cochin Hospital, AP-HP, University Hospital of Centre of Paris, Paris, France
| | - M Gonçalo
- Department of Dermatology, University Hospital and Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - J Duus Johansen
- National Allergy Research Centre, Department of Dermatology and Allergy, Herlev and Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - S M John
- Department of Dermatology, Environmental Medicine, Health Theory, Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrück, University of Osnabrück, Osnabrück, Germany
| | - T Rustemeyer
- Department of Dermatology-Allergology and Occupational Dermatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - N Wagner
- Department of Dermatology, Universitätsklinikum Erlangen-Nürnberg, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - M Wilkinson
- Department of Dermatology, Chapel Allerton Hospital, Leeds, UK
| | - A Giménez-Arnau
- Department of Dermatology, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
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13
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Maris I, Dölle‐Bierke S, Renaudin J, Lange L, Koehli A, Spindler T, Hourihane J, Scherer K, Nemat K, Kemen C, Neustädter I, Vogelberg C, Reese T, Yildiz I, Szepfalusi Z, Ott H, Straube H, Papadopoulos NG, Hämmerling S, Staden U, Polz M, Mustakov T, Cichocka‐Jarosz E, Cocco R, Fiocchi AG, Fernandez‐Rivas M, Worm M, Grünhagen J, Wittenberg M, Beyer K, Henschel A, Küper S, Möser A, Fuchs T, Ruëff F, Wedi B, Hansen G, Buck T, Büsselberg J, Drägerdt R, Pfeffer L, Dickel H, Körner‐Rettberg C, Merk H, Lehmann S, Bauer A, Nordwig A, Zeil S, Hannapp C, Wagner N, Rietschel E, Hunzelmann N, Huseynow I, Treudler R, Aurich S, Prenzel F, Klimek L, Pfaar O, Reider N, Aberer W, Varga E, Bogatu B, Schmid‐Grendelmeier P, Guggenheim R, Riffelmann F, Kreft B, Kinaciyan K, Hartl L, Ebner C, Horak F, Brehler R, Witte J, Buss M, Hompes S, Bieber T, Gernert S, Bücheler M, Rabe U, Brosi W, Nestoris S, Hawranek T, Lang R, Bruns R, Pföhler C, Eng P, Schweitzer‐Krantz S, Meller S, Rebmann H, Fischer J, Stichtenoth G, Thies S, Gerstlauer M, Utz P, Neustädter I, Klinge J, Volkmuth S, Plank‐Habibi S, Schilling B, Kleinheinz A, Brückner A, Schäkel K, Manolaraki I, Kowalski M, Solarewicz‐Madajek K, Tscheiller S, Seidenberg J, Cardona V, Garcia B, Bilo M, Cabañes Higuero N, Vega Castro A, Poziomkowska‐Gęsicka I, Büsing S, Virchow C, Christoff G, Jappe U, Müller S, Knöpfel F, Correard A, Rogala B, Montoro A, Brandes A, Muraro A, Zimmermann N, Hernandez D, Minale P, Niederwimmer J, Zahel B, Dahdah L, Arasi S, Reissig A, Eitelberger F, Asero R, Hermann F, Zeidler S, Pistauer S, Geißler M, Ensina L, Plaza Martin A, Meister J, Stieglitz S, Hamelmann E. Peanut-induced anaphylaxis in children and adolescents: Data from the European Anaphylaxis Registry. Allergy 2021; 76:1517-1527. [PMID: 33274436 DOI: 10.1111/all.14683] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/26/2020] [Accepted: 11/10/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Peanut allergy has a rising prevalence in high-income countries, affecting 0.5%-1.4% of children. This study aimed to better understand peanut anaphylaxis in comparison to anaphylaxis to other food triggers in European children and adolescents. METHODS Data was sourced from the European Anaphylaxis Registry via an online questionnaire, after in-depth review of food-induced anaphylaxis cases in a tertiary paediatric allergy centre. RESULTS 3514 cases of food anaphylaxis were reported between July 2007 - March 2018, 56% in patients younger than 18 years. Peanut anaphylaxis was recorded in 459 children and adolescents (85% of all peanut anaphylaxis cases). Previous reactions (42% vs. 38%; p = .001), asthma comorbidity (47% vs. 35%; p < .001), relevant cofactors (29% vs. 22%; p = .004) and biphasic reactions (10% vs. 4%; p = .001) were more commonly reported in peanut anaphylaxis. Most cases were labelled as severe anaphylaxis (Ring&Messmer grade III 65% vs. 56% and grade IV 1.1% vs. 0.9%; p = .001). Self-administration of intramuscular adrenaline was low (17% vs. 15%), professional adrenaline administration was higher in non-peanut food anaphylaxis (34% vs. 26%; p = .003). Hospitalization was higher for peanut anaphylaxis (67% vs. 54%; p = .004). CONCLUSIONS The European Anaphylaxis Registry data confirmed peanut as one of the major causes of severe, potentially life-threatening allergic reactions in European children, with some characteristic features e.g., presence of asthma comorbidity and increased rate of biphasic reactions. Usage of intramuscular adrenaline as first-line treatment is low and needs to be improved. The Registry, designed as the largest database on anaphylaxis, allows continuous assessment of this condition.
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Affiliation(s)
- Ioana Maris
- Bon Secours Hospital Cork/Paediatrics and Child HealthUniversity College Cork Cork Ireland
| | - Sabine Dölle‐Bierke
- Division of Allergy and Immunology Department of Dermatology, Venereology and Allergology Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
| | | | - Lars Lange
- Department of Paediatrics St. Marien‐Hospital Bonn Germany
| | - Alice Koehli
- Division of Allergology University Children’s Hospital Zurich Zürich Switzerland
| | - Thomas Spindler
- Department of Paediatrics Medical Campus Hochgebirgsklinik Davos Davos Switzerland
| | - Jonathan Hourihane
- Paediatrics and Child Health Royal College of Surgeons in Ireland Dublin Ireland
- Children’s Health Ireland Dublin Ireland
| | | | - Katja Nemat
- Practice for paediatric pneumology and allergology Kinderzentrum Dresden‐Friedrichstadt Dresden Germany
| | - C. Kemen
- Department of Paediatrics Children’s Hospital WILHELMSTIFT Hamburg Germany
| | - Irena Neustädter
- Department of Paediatrics Hallerwiese Cnopfsche Kinderklinik Nuremberg Germany
| | - Christian Vogelberg
- Department of Paediatrics Universitätsklinikum Carl Gustav CarusTechnical University Dresden Germany
| | - Thomas Reese
- Department of Paediatrics Mathias‐Spital Rheine Rheine Germany
| | - Ismail Yildiz
- Department of Paediatrics Friedrich‐Ebert‐Krankenhaus Neumuenster Germany
| | - Zsolt Szepfalusi
- Division of Paediatric Pulmonology, Allergology and Endocrinology Department of Paediatrics and Adolescent Medicine Competence Center Paediatrics Medical University of Vienna Vienna Austria
| | - Hagen Ott
- Division of Paediatric Dermatology and Allergology Epidermolysis bullosa‐Centre HannoverChildren’s Hospital AUF DER BULT Hanover Germany
| | - Helen Straube
- Division of Allergology Darmstädter Kinderkliniken Prinzessin Margaret Darmstadt Germany
| | - Nikolaos G. Papadopoulos
- Allergy Department 2nd Paediatric Clinic National and Kapodistrian University of Athens Athens Greece
- Division of Infection Immunity& Respiratory Medicine University of Manchester Manchester UK
| | - Susanne Hämmerling
- Division of Paediatric Pulmonology and Allergology University Children`s Hospital Heidelberg Heidelberg Germany
| | - Ute Staden
- Paediatric Pneumology & Allergology Medical practice Klettke/Staden Berlin Germany
| | - Michael Polz
- Department of Paediatrics GPR Klinikum Rüsselsheim Germany
| | - Tihomir Mustakov
- Chair of Allergy University Hospital Alexandrovska Sofia Bulgaria
| | - Ewa Cichocka‐Jarosz
- Department of Paediatrics Jagiellonian University Medical College Krakow Poland
| | - Renata Cocco
- Division of Allergy Clinical Immunology and Rheumatology Department of Paediatrics Federal University of São Paulo São Paulo Brazil
| | | | | | - Margitta Worm
- Division of Allergy and Immunology Department of Dermatology, Venereology and Allergology Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
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Oswald P, Rodríguez A, Bourke J, Wagner N, de Buhr N, Buschmann H, Köckritz-Blickwede MV, Pröhl H. Locality, time and heterozygosity affect chytrid infection in yellow-bellied toads. Dis Aquat Organ 2020; 142:225-237. [PMID: 33331290 DOI: 10.3354/dao03543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The chytrid fungus Batrachochytrium dendrobatidis (Bd) infects numerous amphibian species worldwide and is suggested to drive population declines and extinction events. We report a study of Bd infection at the northernmost distribution of the European yellow-bellied toad Bombina variegata. A total of 577 individuals from ponds in 16 study sites were sampled for DNA and Bd throughout the breeding season. Microsatellite genotyping revealed 3 genetic clusters for the host B. variegata with an overall low genetic diversity. One of the clusters displayed a low microsatellite heterozygosity, a high inbreeding coefficient as well as high Bd infection prevalence and intensities. Multi-model estimates identified site, time of sampling, and heterozygosity to be important predictors of an individual's Bd infection status, and identified a strong effect of site on individual Bd infection intensity. The study site effects are suggestive of localized infection peaks, and the increase of individual Bd infection probabilities towards the end of the sampling period suggests cumulative infection during the breeding season. This study highlights the need for regular monitoring of Bd infection variables at multiple localities and times to gain insights into Bd dynamics. Due to the detected relationship between individual Bd infection status and heterozygosity, conservation measures should focus on the maintenance of high genetic diversity and connectivity within and among amphibian populations.
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Affiliation(s)
- Pia Oswald
- Institute of Zoology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
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15
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Löwe A, Bienen F, Kopljar D, Wagner N, Klemm E. Electrochemical production of formic acid from alkaline CO
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reduction by coupling with bipolar membrane electro dialysis. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- A. Löwe
- University of Stuttgart Institute of Chemical Technology Pfaffenwaldring 55 70569 Stuttgart Germany
| | - F. Bienen
- German Aerospace Center Institut für Technische Thermodynamik Pfaffenwaldring 38–40 70569 Stuttgart Germany
| | - D. Kopljar
- German Aerospace Center Institut für Technische Thermodynamik Pfaffenwaldring 38–40 70569 Stuttgart Germany
| | - N. Wagner
- German Aerospace Center Institut für Technische Thermodynamik Pfaffenwaldring 38–40 70569 Stuttgart Germany
| | - E. Klemm
- University of Stuttgart Institute of Chemical Technology Pfaffenwaldring 55 70569 Stuttgart Germany
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16
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Abstract
BACKGROUND Every year up to 35,000 people in Germany are severely injured in accidents in traffic, during work or leisure activities. The 24-h availability of the trauma room as well as surgical and intensive care unit capacities are essential to provide optimal acute care. This study analyzed the frequency of utilization of the resource trauma room in a level I trauma center in the past. METHODS Data of a level I trauma center from 2005 to 2016 including trauma room alerts deployed by the rescue coordination center and the number of patients found to be severely injured (ISS ≥ 16) during trauma room diagnostics were analyzed retrospectively. Additionally, alerts due to trauma mechanism, accompanying by the emergency physician, ventilation and resuscitation were evaluated via a web-based interdisciplinary care capacity system (IVENA) from 2012 to 2016. Therefore, a comparison between the number of trauma room alerts and the number of severely injured patients was performed for the time after 2012. RESULTS For the time from 2012 to 2016, data obtained by IVENA showed a continuous increase in the number of trauma room alerts (n = 367 to n = 623). At the same time, the number of patients admitted under resuscitation (n = 15 to n = 45) as well as ventilated patients (n = 78 to n = 139) increased significantly; however, there was also an increase in the number of trauma alerts due to trauma mechanisms (n = 84 to n = 194) as well as the number of patients admitted to the trauma room not accompanied by an emergency physician (n = 38 to n = 132). The ratio between the number of trauma room alerts and severely injured patients (ISS ≥ 16) increased from 3.1 in 2012 to 5.4 in 2015 and 4.6 in 2016. CONCLUSION The data at hand showed a constant number of severely injured trauma patients admitted to a level I trauma center over the past few years. At the same time, there was a significant increase in utilization of the trauma room; however, in a considerable number of patients admitted to the trauma room the diagnostic process resulted in non-traumatic diagnostic findings. In the analyzed cohort, especially patients admitted to the trauma room due to trauma mechanism or without an accompanying emergency physician contributed to this development, necessitating an increased operational readiness of the trauma room team.
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Affiliation(s)
- I Marzi
- Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Klinikum der Johann Wolfgang Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Deutschland
| | - T Lustenberger
- Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Klinikum der Johann Wolfgang Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Deutschland
| | - P Störmann
- Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Klinikum der Johann Wolfgang Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Deutschland
| | - K Mörs
- Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Klinikum der Johann Wolfgang Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Deutschland.
| | - N Wagner
- Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Klinikum der Johann Wolfgang Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Deutschland
| | - S Wutzler
- Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Klinikum der Johann Wolfgang Goethe-Universität Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Deutschland
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17
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Mingo V, Leeb C, Fahl AK, Lötters S, Brühl C, Wagner N. Validating buccal swabbing as a minimal-invasive method to detect pesticide exposure in squamate reptiles. Chemosphere 2019; 229:529-537. [PMID: 31100624 DOI: 10.1016/j.chemosphere.2019.05.025] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 06/09/2023]
Abstract
The use of enzymatic biomarkers constitutes a widely used approach in ecotoxicology. However, standard sampling procedures are invasive, requiring tissue, organ or blood extraction. This leads to concerns regarding conservation practice, animal welfare and restrictions in study design. New techniques are needed to avoid these problems, but still generate reliable data. Here, we aimed at validating the use of buccal swabs as a reliable method to detect pesticide exposure in reptiles. Common wall lizards (Podarcis muralis) were divided into control, dermal and oral treatment groups and exposed to different pesticide formulations. Subsequently, buccal swabs were taken and enzymatic activity was analyzed. We were able to confirm the suitability of the method to detect effects of pesticide exposure on the enzymatic level. While exposure to the formulation Roundup Ultramax® didn't match when compared to effects previously observed in situ when compared to other glyphosate based formulations, effects could still be detected. This can be seen as a strong indicator that the active ingredient of a formulation may not always be the mian driver for ecotoxicological effectsat the enzymatic level. At the same time, exposure towards the single formulation Vivando® didn't result in any effects. However, individuals residing in agricultural landscapes will mostly be exposed to pesticide mixes containing different formulations. Our results strongly advocate that buccal swabbing is a reliable minimal invasive method to generate samples for detecting effects of pesticide exposure in reptiles. Due to its easy handling, we believe it will provide new opportunities concerning study designs.
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Affiliation(s)
- Valentin Mingo
- Trier University, Department of Biogeography, Universitätsring 15, 54296, Trier, Germany.
| | - Christoph Leeb
- University Koblenz-Landau, Institute for Environmental Sciences, Forststraße 7, 76829, Landau, Germany
| | - Ann-Katrin Fahl
- RWTH Aachen, Institute for Environmental Sciences (Biology V), Worringerweg 1, 52074, Aachen, Germany
| | - Stefan Lötters
- Trier University, Department of Biogeography, Universitätsring 15, 54296, Trier, Germany
| | - Carsten Brühl
- University Koblenz-Landau, Institute for Environmental Sciences, Forststraße 7, 76829, Landau, Germany
| | - Norman Wagner
- Trier University, Department of Biogeography, Universitätsring 15, 54296, Trier, Germany
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18
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Thomas V, Wang Y, Van Rooij P, Verbrugghe E, Baláž V, Bosch J, Cunningham AA, Fisher MC, Garner TW, Gilbert MJ, Grasselli E, Kinet T, Laudelout A, Lötters S, Loyau A, Miaud C, Salvidio S, Schmeller DS, Schmidt BR, Spitzen-van der Sluijs A, Steinfartz S, Veith M, Vences M, Wagner N, Canessa S, Martel A, Pasmans F. Mitigating Batrachochytrium salamandrivorans in Europe. AMPHIBIA-REPTILIA 2019. [DOI: 10.1163/15685381-20191157] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
The infectious chytrid fungus Batrachochytrium salamandrivorans (Bsal) has been responsible for severe population declines of salamander populations in Europe. Serious population declines and loss of urodelan diversity may occur if appropriate action is not taken to mitigate against the further spread and impact of Bsal. We provide an overview of several potential mitigation methods, and describe their possible advantages and limitations. We conclude that long-term, context-dependent, multi-faceted approaches are needed to successfully mitigate adverse effects of Bsal, and that these approaches should be initiated pre-arrival of the pathogen. The establishment of ex situ assurance colonies, or management units, for species threatened with extinction, should be considered as soon as possible. While ex situ conservation and preventive measures aimed at improving biosecurity by limiting amphibian trade may be implemented quickly, major challenges that lie ahead are in designing in situ disease containment and mitigation post-arrival and in increasing public awareness.
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Affiliation(s)
- Valarie Thomas
- 1Wildlife Health Ghent, Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - Yu Wang
- 1Wildlife Health Ghent, Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - Pascale Van Rooij
- 1Wildlife Health Ghent, Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - Elin Verbrugghe
- 1Wildlife Health Ghent, Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - Vojtech Baláž
- 2Department of Ecology and Diseases of Game, Fish and Bees, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic
| | - Jaime Bosch
- 3Museo Nacional de Ciencias Naturales-CSIC, 28006 Madrid, Spain
| | - Andrew A. Cunningham
- 4Institute of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, UK
| | - Matthew C. Fisher
- 5MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, UK
| | - Trenton W.J. Garner
- 4Institute of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, UK
| | - Maarten J. Gilbert
- 6Reptile, Amphibian & Fish Conservation Netherlands, PO Box 1413, 6501 BK Nijmegen, The Netherlands
- 7Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | | | - Thierry Kinet
- 9Natagora, Département Etudes, 1 Traverse des Muses, B-5000 Namur, Belgium
| | - Arnaud Laudelout
- 9Natagora, Département Etudes, 1 Traverse des Muses, B-5000 Namur, Belgium
| | - Stefan Lötters
- 10Department of Biogeography, Trier University, Universitätsring 15, 54296 Trier, Germany
| | - Adeline Loyau
- 11EcoLab, Université de Toulouse, UPS, INPT, CNRS, Toulouse, France
- 12Department of Limnology of Stratified Lakes, Institute of Freshwater Ecology and Inland Fisheries, Neuglobsow, Germany
| | - Claude Miaud
- 13PSL, UMR 5175 CEFE, EPHE, Biogeography and vertebrate Ecology, Montpellier, France
| | | | | | - Benedikt R. Schmidt
- 14Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
- 15Info Fauna Karch, UniMail, Bâtiment G, Bellevaux 51, 2000 Neuchâtel, Switzerland
| | | | - Sebastian Steinfartz
- 16University of Leipzig, Institute of Biology, Molecular Evolution and Systematics of Animals, Talstrasse 33, 04103 Leipzig, Germany
| | - Michael Veith
- 10Department of Biogeography, Trier University, Universitätsring 15, 54296 Trier, Germany
| | - Miguel Vences
- 17Technische Universität Braunschweig, Zoological Institute, Mendelssohnstr. 4, 38106 Braunschweig, Germany
| | - Norman Wagner
- 10Department of Biogeography, Trier University, Universitätsring 15, 54296 Trier, Germany
| | - Stefano Canessa
- 1Wildlife Health Ghent, Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - An Martel
- 1Wildlife Health Ghent, Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - Frank Pasmans
- 1Wildlife Health Ghent, Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
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Ashkar R, Bilheux HZ, Bordallo H, Briber R, Callaway DJE, Cheng X, Chu XQ, Curtis JE, Dadmun M, Fenimore P, Fushman D, Gabel F, Gupta K, Herberle F, Heinrich F, Hong L, Katsaras J, Kelman Z, Kharlampieva E, Kneller GR, Kovalevsky A, Krueger S, Langan P, Lieberman R, Liu Y, Losche M, Lyman E, Mao Y, Marino J, Mattos C, Meilleur F, Moody P, Nickels JD, O'Dell WB, O'Neill H, Perez-Salas U, Peters J, Petridis L, Sokolov AP, Stanley C, Wagner N, Weinrich M, Weiss K, Wymore T, Zhang Y, Smith JC. Neutron scattering in the biological sciences: progress and prospects. Acta Crystallogr D Struct Biol 2018; 74:1129-1168. [PMID: 30605130 DOI: 10.1107/s2059798318017503] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/12/2018] [Indexed: 12/11/2022]
Abstract
The scattering of neutrons can be used to provide information on the structure and dynamics of biological systems on multiple length and time scales. Pursuant to a National Science Foundation-funded workshop in February 2018, recent developments in this field are reviewed here, as well as future prospects that can be expected given recent advances in sources, instrumentation and computational power and methods. Crystallography, solution scattering, dynamics, membranes, labeling and imaging are examined. For the extraction of maximum information, the incorporation of judicious specific deuterium labeling, the integration of several types of experiment, and interpretation using high-performance computer simulation models are often found to be particularly powerful.
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Affiliation(s)
- Rana Ashkar
- Department of Physics, Virginia Polytechnic Institute and State University, 850 West Campus Drive, Blacksburg, VA 24061, USA
| | - Hassina Z Bilheux
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | | | - Robert Briber
- Materials Science and Engineeering, University of Maryland, 1109 Chemical and Nuclear Engineering Building, College Park, MD 20742, USA
| | - David J E Callaway
- Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA
| | - Xiaolin Cheng
- Department of Medicinal Chemistry and Pharmacognosy, Ohio State University College of Pharmacy, 642 Riffe Building, Columbus, OH 43210, USA
| | - Xiang Qiang Chu
- Graduate School of China Academy of Engineering Physics, Beijing, 100193, People's Republic of China
| | - Joseph E Curtis
- NIST Center for Neutron Research, National Institutes of Standard and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA
| | - Mark Dadmun
- Department of Chemistry, University of Tennessee Knoxville, Knoxville, TN 37996, USA
| | - Paul Fenimore
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - David Fushman
- Department of Chemistry and Biochemistry, Center for Biomolecular Structure and Organization, University of Maryland, College Park, MD 20742, USA
| | - Frank Gabel
- Institut Laue-Langevin, Université Grenoble Alpes, CEA, CNRS, IBS, 38042 Grenoble, France
| | - Kushol Gupta
- Department of Biochemistry and Biophysics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Frederick Herberle
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | - Frank Heinrich
- NIST Center for Neutron Research, National Institutes of Standard and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA
| | - Liang Hong
- Department of Physics and Astronomy, Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - John Katsaras
- Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Zvi Kelman
- Institute for Bioscience and Biotechnology Research, National Institute of Standards and Technology and the University of Maryland, Rockville, MD 20850, USA
| | - Eugenia Kharlampieva
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, Birmingham, AL 35294, USA
| | - Gerald R Kneller
- Centre de Biophysique Moléculaire, CNRS, Université d'Orléans, Chateau de la Source, Avenue du Parc Floral, Orléans, France
| | - Andrey Kovalevsky
- Biology and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Susan Krueger
- NIST Center for Neutron Research, National Institutes of Standard and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA
| | - Paul Langan
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | - Raquel Lieberman
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Yun Liu
- NIST Center for Neutron Research, National Institutes of Standard and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA
| | - Mathias Losche
- Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
| | - Edward Lyman
- Department of Physics and Astrophysics, University of Delaware, Newark, DE 19716, USA
| | - Yimin Mao
- NIST Center for Neutron Research, National Institutes of Standard and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA
| | - John Marino
- Institute for Bioscience and Biotechnology Research, National Institute of Standards and Technology and the University of Maryland, Rockville, MD 20850, USA
| | - Carla Mattos
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts, USA
| | - Flora Meilleur
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | - Peter Moody
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 9HN, England
| | - Jonathan D Nickels
- Department of Physics, Virginia Polytechnic Institute and State University, 850 West Campus Drive, Blacksburg, VA 24061, USA
| | - William B O'Dell
- Institute for Bioscience and Biotechnology Research, National Institute of Standards and Technology and the University of Maryland, Rockville, MD 20850, USA
| | - Hugh O'Neill
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | - Ursula Perez-Salas
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | | | - Loukas Petridis
- Materials Science and Engineeering, University of Maryland, 1109 Chemical and Nuclear Engineering Building, College Park, MD 20742, USA
| | - Alexei P Sokolov
- Department of Chemistry, University of Tennessee Knoxville, Knoxville, TN 37996, USA
| | - Christopher Stanley
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | - Norman Wagner
- Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA
| | - Michael Weinrich
- NIST Center for Neutron Research, National Institutes of Standard and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA
| | - Kevin Weiss
- Neutron Sciences Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37831, USA
| | - Troy Wymore
- Graduate School of China Academy of Engineering Physics, Beijing, 100193, People's Republic of China
| | - Yang Zhang
- NIST Center for Neutron Research, National Institutes of Standard and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA
| | - Jeremy C Smith
- Department of Medicinal Chemistry and Pharmacognosy, Ohio State University College of Pharmacy, 642 Riffe Building, Columbus, OH 43210, USA
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Campbell JA, Mendez CE, Garacci E, Walker RJ, Wagner N, Egede LE. The differential impact of adverse childhood experiences in the development of pre-diabetes in a longitudinal cohort of US adults. J Diabetes Complications 2018; 32:1018-1024. [PMID: 30236541 PMCID: PMC7553202 DOI: 10.1016/j.jdiacomp.2018.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/17/2018] [Accepted: 09/09/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND ACEs have a dose-response relationship with diabetes. The relationship between ACEs and pre-diabetes is not well known and may represent an effective area for prevention efforts. METHODS Data from 1054 participants from two waves of the longitudinal MIDUS study were used. Multivariate general linear regression models assessed the relationship between ACEs and biomarker outcomes. Correlation tests and mediation models investigated the relationship between ACE and pre-diabetes. RESULTS Individuals reporting ACEs were statistically significantly more likely to have higher BMI (1.13 (0.34-1.92)), higher waist circumference (2.74 (0.72-4.76)), elevated blood fasting insulin levels (2.36 (0.71-4.02)) and higher insulin resistance (HOMA-IR (0.57 (0.08-1.06)). BMI/waist circumference and insulin resistance did not maintain independent relationships with ACEs once HOMA-IR was included in the dichotomized ACE model (p = 0.05 and p = 0.06, respectively), suggesting the relationship between BMI and ACEs may be mediated by insulin resistance. CONCLUSIONS These results represent one of the first studies to examine the differential impact of ACEs on a diverse set of clinical pre-diabetes measures. Findings suggest sexual and physical abuse, and financial strain during childhood are important factors associated with higher risk for pre-diabetes, and should be considered during intervention development.
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Affiliation(s)
- J A Campbell
- Department of Medicine, Division of General Internal Medicine, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226, USA; University of Wisconsin, Milwaukee, Joseph Zilber School of Public Health, 1240 N 10th Street, Milwaukee, WI 53205, USA
| | - C E Mendez
- Department of Medicine, Division of General Internal Medicine, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226, USA
| | - E Garacci
- Department of Medicine, Division of General Internal Medicine, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226, USA; Center for Advancing Population Science (CAPS), Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - R J Walker
- Department of Medicine, Division of General Internal Medicine, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226, USA; Center for Advancing Population Science (CAPS), Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - N Wagner
- Department of Medicine, Division of General Internal Medicine, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226, USA
| | - L E Egede
- Department of Medicine, Division of General Internal Medicine, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226, USA; University of Wisconsin, Milwaukee, Joseph Zilber School of Public Health, 1240 N 10th Street, Milwaukee, WI 53205, USA.
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21
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Hinze C, Wagner N, Tenbrock K. Kollagenosen im Kindes- und Jugendalter. Monatsschr Kinderheilkd 2018. [DOI: 10.1007/s00112-018-0498-y] [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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22
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Wagner N, Podda M. High volume of polysorbate-containing (Tween ® 80) solutions induces false-positive results in intradermal test. J Eur Acad Dermatol Venereol 2018; 32:1972-1976. [PMID: 29633392 DOI: 10.1111/jdv.14999] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 03/19/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Intradermal test is used to detect causative allergens in IgE-mediated hypersensitivity. The surfactant polysorbate 80 can be added to intradermal test solutions to more reliably dissolve the allergen and ensure a constant bioavailability of the injected allergen. Polysorbate 80 has, however, some histamine-releasing properties which could blur the difference to the histamine-induced wheal. Routinely serving as a control. OBJECTIVE Allergen-free polysorbate 80 containing (0.005%) test solutions were therefore systematically tested at different injection volumes to see whether polysorbate can falsify skin reactions and if yes whether conditions can be identified to avoid this. METHODS In a partly blinded study, 30 patients were tested intracutaneously at the back: each received at three separate sites 0.05 mL of polysorbate-containing solvent, 0.02 mL polysorbate-containing solvent as well as 0.02 mL polysorbate-free solvent. After 15 min, wheal and erythema were documented and planimetrically quantified. RESULTS Unexpectedly 23 of 30 (77%) patients showed false-positive test reactions to the volume of 0.05 mL of the polysorbate-containing solvent whereas the polysorbate-containing solvent with 0.02 mL and the polysorbate-free solvent with 0.02 mL injection volume had no reinforcing effect on skin test reaction. CONCLUSIONS Different volumes of polysorbate-containing solutions, all recommended by manufacturers for intradermal tests, may significantly influence test results. The study shows that a polysorbate 80 used at 0.005% in solvents for intradermal test to provide a better bioavailability of allergens produces false-positive reactivity in a surprising and a hitherto unknown 77% if the 0.05 mL volume is injected. It is, therefore, mandatory to strictly adhere to an intradermal test volume of 0.02 mL as only then falsifying effects of the polysorbate additive are avoided, and comparable test results are ensured.
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Affiliation(s)
- N Wagner
- Department of Dermatology, University Hospital Erlangen, Erlangen, Germany
| | - M Podda
- Department of Dermatology, Clinical Centre Darmstadt, Darmstadt, Germany
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Trepels-Kottek S, Orlikowsky T, Wagner N. Therapiemanagement bei Kohlenmonoxidintoxikation. Monatsschr Kinderheilkd 2018. [DOI: 10.1007/s00112-018-0450-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Jappe U, Minge S, Kreft B, Ludwig A, Przybilla B, Walker A, Varga R, Seidel P, Biedermann T, Anemüller W, Kromminga A, Ruëff F, Merk H, Wagner N, Treudler R, Worm M, Waldmann I, Saloga J, Becker WM, Goldmann T, Platts‐Mills TA, Homann A. Meat allergy associated with galactosyl-α-(1,3)-galactose (α-Gal)-Closing diagnostic gaps by anti-α-Gal IgE immune profiling. Allergy 2018; 73:93-105. [PMID: 28670695 DOI: 10.1111/all.13238] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Glycoproteins and glycolipids of some mammalian species contain the disaccharide galactosyl-α-(1,3)-galactose (α-Gal). It is known that α-Gal is immunogenic in humans and causes glycan-specific IgG and also IgE responses with clinical relevance. α-Gal is part of the IgE-reactive monoclonal therapeutic antibody cetuximab (CTX) and is associated with delayed anaphylaxis to red meat. In this study, different α-Gal-containing analytes are examined in singleplex and multiplex assays to resolve individual sensitization patterns with IgE against α-Gal. METHODS Three serum groups, α-Gal-associated meat allergy (MA) patients, idiopathic anaphylaxis (IA) patients with suspected MA, and non-meat-allergic healthy control individuals (HC), were analyzed via singleplex allergy diagnostics and a newly established immunoblot diagnostic system. The new dot blot detection system resolved individual IgE sensitization profiles for α-Gal-containing analytes CTX, bovine thyroglobulin (Bos d TG), and human serum albumin (HSA)-conjugated α-Gal. RESULTS Singleplex allergy diagnostics using the α-Gal analytes CTX and Bos d TG confirms the history of MA patients in 91% and 88% of the cases, respectively. A novel dot blot-based assay system for the detection of IgE against α-Gal reveals individual IgE sensitization profiles for α-Gal-containing analytes. An α-Gal-associated IgE cross-reactivity profile (IgE against CTX, Bos d TG, and HSA-α-Gal) was identified, which is associated with MA. CONCLUSIONS Detection of individual sensitization patterns with different α-Gal-containing analytes provides the basis for an individual allergy diagnosis for α-Gal-sensitized patients. Higher amounts of α-Gal in pork and beef innards compared to muscle meat as indicated by a higher staining intensity are a plausible explanation for the difference in allergic symptom severity.
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Affiliation(s)
- U. Jappe
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
- Interdisciplinary Allergy Division Department of Internal Medicine University of Lübeck Lübeck Germany
| | - S. Minge
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
| | - B. Kreft
- Department of Dermatology and Venereology Martin‐Luther‐University Halle‐Wittenberg Halle (Saale) Germany
| | - A. Ludwig
- Department of Dermatology and Allergology Klinikum Augsburg Augsburg Germany
| | - B. Przybilla
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - A. Walker
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - R. Varga
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - P. Seidel
- Department of Dermatology University of Tübingen Tübingen Germany
| | - T. Biedermann
- Department of Dermatology University of Tübingen Tübingen Germany
- Department of Dermatology and Allergology Technical University of Munich Munich Germany
| | - W. Anemüller
- Department of Dermatology University of Lübeck Lübeck Germany
| | | | - F. Ruëff
- Department of Dermatology Ludwig‐Maximilians University Munich Germany
| | - H. Merk
- Department of Dermatology RWTH Aachen University Aachen Germany
| | - N. Wagner
- Department of Dermatology Klinikum Darmstadt Germany
| | - R. Treudler
- Department of Dermatology, Venereology and Allergology University of Leipzig Leipzig Germany
| | - M. Worm
- Department of Dermatology and Allergy Allergy Center Charité Berlin Germany
| | - I. Waldmann
- Dermatology & Allergology St. Bernward Klinik Hildesheim Germany
| | - J. Saloga
- Department of Dermatology University of Mainz Mainz Germany
| | - W. M. Becker
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
| | - T. Goldmann
- Pathology of the University Medical Center Schleswig‐Holstein (UKSH) Campus Lübeck and Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
| | - T. A. Platts‐Mills
- University of Virginia Asthma and Allergic Diseases Center Charlottesville USA
| | - A. Homann
- Division of Clinical and Molecular Allergology Priority Research Area Asthma & Allergy Research Center Borstel Airway Research Center North (ARCN) Member of the German Center for Lung Research (DZL) Borstel Germany
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Kehrmann J, Veckollari B, Schmidt D, Schildgen O, Schildgen V, Wagner N, Zeschnigk M, Klein-Hitpass L, Witzke O, Buer J, Steinmann J. The lung microbiome in patients with pneumocystosis. BMC Pulm Med 2017; 17:170. [PMID: 29202739 PMCID: PMC5715545 DOI: 10.1186/s12890-017-0512-5] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 11/20/2017] [Indexed: 12/31/2022] Open
Abstract
Backround Pneumocystis jirovecii pneumonia (PCP) is an opportunistic fungal infection that is associated with a high morbidity and mortality in immunocompromised individuals. In this study, we analysed the microbiome of the lower respiratory tract from critically ill intensive care unit patients with and without pneumocystosis. Methods Broncho-alveolar fluids from 65 intubated and mechanically ventilated intensive care unit patients (34 PCP+ and 31 PCP- patients) were collected. Sequence analysis of bacterial 16S rRNA gene V3/V4 regions was performed to study the composition of the respiratory microbiome using the Illumina MiSeq platform. Results Differences in the microbial composition detected between PCP+ and PCP- patients were not statistically significant on class, order, family and genus level. In addition, alpha and beta diversity metrics did not reveal significant differences between PCP+ and PCP- patients. The composition of the lung microbiota was highly variable between PCP+ patients and comparable in its variety with the microbiota composition of the heterogeneous collective of PCP- patients. Conclusions The lower respiratory tract microbiome in patients with pneumocystosis does not appear to be determined by a specific microbial composition or to be dominated by a single bacterial species. Electronic supplementary material The online version of this article (10.1186/s12890-017-0512-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- J Kehrmann
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.
| | - B Veckollari
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - D Schmidt
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - O Schildgen
- Institute of Pathology, Kliniken der Stadt Köln gGmbH, Hospital of the University of Witten/Herdecke, Cologne, Germany
| | - V Schildgen
- Institute of Pathology, Kliniken der Stadt Köln gGmbH, Hospital of the University of Witten/Herdecke, Cologne, Germany
| | - N Wagner
- Institute of Human Genetics, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - M Zeschnigk
- Institute of Human Genetics, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - L Klein-Hitpass
- Biochip Laboratory, Institute for Cell Biology-Tumor Research, University of Duisburg-Essen, Essen, Germany
| | - O Witzke
- Department of Infectious Diseases, University of Duisburg-Essen, Essen, Germany
| | - J Buer
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - J Steinmann
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany. .,Present Address: Institute of Clinical Hygiene, Medical Microbiology and Infectiology, Klinikum Nürnberg, Paracelsus Medical University, Prof.-Ernst-Nathan-Str. 1, 90419, Nürnberg, Germany.
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Ruppé E, Cherkaoui A, Wagner N, La Scala GC, Beaulieu JY, Girard M, Frey J, Lazarevic V, Schrenzel J. In vivo selection of a multidrug-resistant Aeromonas salmonicida during medicinal leech therapy. New Microbes New Infect 2017; 21:23-27. [PMID: 29204282 PMCID: PMC5709350 DOI: 10.1016/j.nmni.2017.10.005] [Citation(s) in RCA: 11] [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: 05/24/2017] [Revised: 09/15/2017] [Accepted: 10/04/2017] [Indexed: 12/18/2022] Open
Abstract
We report the selection in a 15-year-old boy of a multidrug-resistant, extended-spectrum β-lactamase (ESBL)-producing Aeromonas salmonicida after medicinal leech therapy that required an antibiotic prophylaxis based on piperacillin/tazobactam and cotrimoxazole. Whole genome sequencing of the strain indeed revealed 13 antibiotic resistance genes, including the ESBL CTX-M-3 and the unusual β-lactamase SCO-1.
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Affiliation(s)
- E Ruppé
- Genomic Research Laboratory, Division of Infectious Diseases, Switzerland
| | - A Cherkaoui
- Bacteriology Laboratory, Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Switzerland
| | - N Wagner
- Pediatric Infectious Diseases, Department of Pediatrics, Switzerland
| | - G C La Scala
- Division of Pediatric Surgery, Department of Pediatrics, Switzerland
| | - J-Y Beaulieu
- Hand Surgery Unit, Division of Orthopedic Surgery, Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
| | - M Girard
- Genomic Research Laboratory, Division of Infectious Diseases, Switzerland
| | - J Frey
- Institute of Veterinary Bacteriology, University of Bern, Bern, Switzerland
| | - V Lazarevic
- Genomic Research Laboratory, Division of Infectious Diseases, Switzerland
| | - J Schrenzel
- Genomic Research Laboratory, Division of Infectious Diseases, Switzerland.,Bacteriology Laboratory, Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Switzerland
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27
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Mingo V, Lötters S, Wagner N. The impact of land use intensity and associated pesticide applications on fitness and enzymatic activity in reptiles-A field study. Sci Total Environ 2017; 590-591:114-124. [PMID: 28259431 DOI: 10.1016/j.scitotenv.2017.02.178] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 05/27/2023]
Abstract
Environmental pollution and habitat loss are described as underlying causes for population declines in reptiles and especially affect species in agricultural landscapes. Studies dealing with effects of pesticide exposure on reptiles are limited, mainly addressing the orders Testudines and Crocodylia, but largely neglecting the most diverse reptile order Squamata (lizards and snakes). As a consequence, information regarding effects on their organisms, as well as exposure probability and pesticide uptake in the Reptilia has to be considered rather uncharted. We here ask how pesticide applications affect a widely distributed, synanthropic squamate species in Europe. We studied the common wall lizard (Podarcis muralis) with regard to enzymatic biomarkers of pesticide exposure (Glutathione-S-Transferase, Glutathione Reductase, Acetylcholinesterase) and body condition. Lizards were sampled from wild populations, along an exposure gradient (three exposed sites with differing land use intensity and one reference site). Our results suggest both dermal and oral uptake of pesticide formulations, with the former being especially relevant during the first two days after a pesticide application. Enzymatic activity slightly differed between exposure gradients, while showing overall similar patterns. Body condition of lizards decreased with increasing pesticide exposure. Furthermore, gender distribution was particularly skewed in favor to males within exposed sample sites. Although reptiles are not target organisms of pesticide applications, many species do come into contact with them, and most probably suffer from dermal and oral uptake. Thus, we believe it is indispensable for reptiles to be integrated in risk assessments in order to improve conservation practice.
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Affiliation(s)
- Valentin Mingo
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany.
| | - Stefan Lötters
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany
| | - Norman Wagner
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany
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Hochkirch A, Beninde J, Fischer M, Krahner A, Lindemann C, Matenaar D, Rohde K, Wagner N, Wesch C, Wirtz S, Zink A, Lötters S, Schmitt T, Proelss A, Veith M. License to Kill?-Disease Eradication Programs May Not be in Line with the Convention on Biological Diversity. Conserv Lett 2017. [DOI: 10.1111/conl.12370] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Axel Hochkirch
- Department of Biogeography; Trier University; 54286 Trier Germany
- IUCN SSC Invertebrate Conservation Subcommittee, Department of Biogeography; Trier University; 54286 Trier Germany
| | - Joscha Beninde
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Marietta Fischer
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - André Krahner
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Cosima Lindemann
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Daniela Matenaar
- Department of Biogeography; Trier University; 54286 Trier Germany
- Stuttgart State Museum of Natural History; Department of Entomology; Rosenstein 1 70191 Stuttgart Germany
- Hessisches Landesmuseum Darmstadt; Friedensplatz 1 64283 Darmstadt Germany
| | - Katja Rohde
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Norman Wagner
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Charlotte Wesch
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Sarah Wirtz
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Andreas Zink
- Institute for Environmental and Technology Law; Trier University; 54286 Trier Germany
| | - Stefan Lötters
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Thomas Schmitt
- Department of Biogeography; Trier University; 54286 Trier Germany
- Senckenberg German Entomological Institute; 15374 Müncheberg Germany
- Entomology, Department of Zoology, Institute of Biology; Martin Luther University Halle-Wittenberg; 06099 (Halle) Saale Germany
| | - Alexander Proelss
- Institute for Environmental and Technology Law; Trier University; 54286 Trier Germany
| | - Michael Veith
- Department of Biogeography; Trier University; 54286 Trier Germany
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Wagner N, Hochkirch A, Martin H, Matenaar D, Rohde K, Wacht F, Wesch C, Wirtz S, Klein R, Lötters S, Proelss A, Veith M. De-extinction, nomenclature, and the law. Science 2017; 356:1016-1017. [DOI: 10.1126/science.aal4012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Norman Wagner
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
| | - Axel Hochkirch
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
| | - Henrike Martin
- Institute of Environmental and Technology Law, Trier University,
54296 Trier, Germany
| | - Daniela Matenaar
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
- Department of Entomology, Stuttgart State Museum of Natural
History, 70191 Stuttgart, Germany
- Hessisches Landesmuseum Darmstadt, 64283 Darmstadt,
Germany
| | - Katja Rohde
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
| | - Frank Wacht
- Institute of Environmental and Technology Law, Trier University,
54296 Trier, Germany
| | - Charlotte Wesch
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
| | - Sarah Wirtz
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
| | - Roland Klein
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
| | - Stefan Lötters
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
| | - Alexander Proelss
- Institute of Environmental and Technology Law, Trier University,
54296 Trier, Germany
| | - Michael Veith
- Department of Biogeography, Trier University,
Universitätsring 15, 54296 Trier, Germany
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30
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Wagner N. Editorial Overview: Nanotechnology. Curr Opin Chem Eng 2017. [DOI: 10.1016/j.coche.2017.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Maurer M, Staubach P, Raap U, Richter-Huhn G, Bauer A, Ruëff F, Jakob T, Yazdi AS, Mahler V, Wagner N, Lippert U, Hillen U, Schwinn A, Pawlak M, Behnke N, Chaouche K, Chapman-Rothe N. H1-antihistamine-refractory chronic spontaneous urticaria: it's worse than we thought - first results of the multicenter real-life AWARE study. Clin Exp Allergy 2017; 47:684-692. [PMID: 28160338 DOI: 10.1111/cea.12900] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 10/05/2016] [Accepted: 01/12/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Most data on chronic spontaneous urticaria (CSU) originate from highly selected patient populations treated at specialized centres. Little is known about CSU patient characteristics and the burden of CSU in routine clinical practice. AWARE (A World-wide Antihistamine-Refractory chronic urticaria patient Evaluation) is an ongoing global study designed to assess chronic urticaria in the real-life setting. OBJECTIVE To describe the baseline characteristics of the first 1539 German AWARE patients with H1-antihistamine-refractory CSU. METHODS This prospective non-interventional study included patients (18-75 years) with a diagnosis of H1-antihistamine-refractory CSU for > 2 months. Baseline demographic and disease characteristics, comorbidities, and pharmacological treatments were recorded. Quality of life (QoL) was assessed using the dermatology life quality index (DLQI), chronic urticaria QoL questionnaire (CU-Q2 oL), and angioedema QoL questionnaire (AE-QoL, in cases of angioedema). Previous healthcare resource utilization and sick leave data were collected retrospectively. RESULTS Between March and December 2014, 1539 patients were assessed in 256 sites across Germany. The percentage of females, mean age, and mean body mass index were 70%, 46.3 years, and 27 kg/m2 , respectively. The mean urticaria control test score was 7.9, one in two patients had angioedema, and the most frequent comorbidities were chronic inducible urticaria (CIndU; 24%), allergic rhinitis (18.2%), hypertension (18.1%), asthma (12%), and depression (9.5%). Overall, 57.6% of patients were receiving at least one pharmacological treatment including second-generation H1-antihistamines (46.3%), first-generation H1-antihistamines (9.1%), and corticosteroids (15.8%). The mean DLQI, total CU-Q2 oL, and total AE-QoL scores were 8.3, 36.2, and 46.8, respectively. CSU patients reported frequent use of healthcare resources, including emergency services (29.7%), general practitioners (71.9%), and additional allergists or dermatologists (50.7%). CONCLUSIONS AND CLINICAL RELEVANCE This study reveals that German H1-antihistamine-refractory CSU patients have high rates of uncontrolled disease, angioedema, and comorbid CIndU, are undertreated, have impaired QoL, and rely heavily on healthcare resources.
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Affiliation(s)
- M Maurer
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - P Staubach
- Department of Dermatology, University Hospital Mainz, Mainz, Germany
| | - U Raap
- Department of Dermatology and Allergy, Klinikum Oldenburg AöR, University of Oldenburg, Oldenburg, Germany
| | | | - A Bauer
- Department of Dermatology, University Allergy Center, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - F Ruëff
- Department of Dermatology and Allergology, Ludwig-Maximilian University, Munich, Germany
| | - T Jakob
- Department of Dermatology and Allergology, Justus Liebig University, University Medical Center Gießen and Marburg, Gießen, Germany.,Department of Dermatology, Medical Center - University of Freiburg, Freiburg, Germany
| | - A S Yazdi
- Department of Dermatology, University of Tübingen, Tübingen, Germany
| | - V Mahler
- Department of Dermatology, University Hospital Erlangen, Erlangen, Germany
| | - N Wagner
- Department of Dermatology, Clinical Centre Darmstadt, Darmstadt, Germany
| | - U Lippert
- Department of Dermatology, Venereology and Allergology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - U Hillen
- Department of Dermatology, University Hospital of Essen, University of Duisburg-Essen, Essen, Germany
| | - A Schwinn
- Praxis für Dermatologie, Memmingen, Germany
| | - M Pawlak
- Hautarztpraxis, Heilbad Heiligenstadt, Germany
| | - N Behnke
- Hautarztpraxis, Panketal, Germany
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Wagner N, Neubeck C, Guicking D, Finke L, Wittich M, Weising K, Geske C, Veith M. No evidence for effects of infection with the amphibian chytrid fungus on populations of yellow-bellied toads. Dis Aquat Organ 2017; 123:55-65. [PMID: 28177293 DOI: 10.3354/dao03090] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The parasitic chytrid fungus Batrachochytrium dendrobatidis (Bd) can cause the lethal disease chytridiomycosis in amphibians and therefore may play a role in population declines. The yellow-bellied toad Bombina variegata suffered strong declines throughout western and northwestern parts of its range and is therefore listed as highly endangered for Germany and the federal state of Hesse. Whether chytridiomycosis may play a role in the observed local declines of this strictly protected anuran species has never been tested. We investigated 19 Hessian yellow-bellied toad populations for Bd infection rates, conducted capture-mark-recapture studies in 4 of them over 2 to 3 yr, examined survival histories of recaptured infected individuals, and tested whether multi-locus heterozygosity of individuals as well as expected heterozygosity and different environmental variables of populations affect probabilities of Bd infection. Our results show high prevalence of Bd infection in Hessian yellow-bellied toad populations, but although significant decreases in 2 populations could be observed, no causative link to Bd as the reason for this can be established. Mass mortalities or obvious signs of disease in individuals were not observed. Conversely, we show that growth of Bd-infected populations is possible under favorable habitat conditions and that most infected individuals could be recaptured with improved body indices. Neither genetic diversity nor environmental variables appeared to affect Bd infection probabilities. Hence, genetically diverse amphibian specimens and populations may not automatically be less susceptible for Bd infection.
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Affiliation(s)
- Norman Wagner
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany
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Cordey S, Schibler M, L'Huillier AG, Wagner N, Gonçalves AR, Ambrosioni J, Asner S, Turin L, Posfay-Barbe KM, Kaiser L. Comparative analysis of viral shedding in pediatric and adult subjects with central nervous system-associated enterovirus infections from 2013 to 2015 in Switzerland. J Clin Virol 2017; 89:22-29. [PMID: 28214758 DOI: 10.1016/j.jcv.2017.01.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 10/21/2016] [Revised: 01/25/2017] [Accepted: 01/28/2017] [Indexed: 12/23/2022]
Abstract
BACKGROUND Several enterovirus (EV) genotypes can result in aseptic meningitis, but their routes of access to the central nervous system remain to be elucidated and may differ between the pediatric and adult populations. OBJECTIVE To assess the pattern of viral shedding in pediatric and adult subjects with acute EV meningitis and to generate EV surveillance data for Switzerland. STUDY DESIGN All pediatric and adult subjects admitted to the University Hospitals of Geneva with a diagnosis of EV meningitis between 2013 and 2015 were enrolled. A quantitative EV real-time reverse transcriptase (rRT)-PCR was performed on the cerebrospinal fluid (CSF), blood, stool, urine and respiratory specimens to assess viral shedding and provide a comparative analysis of pediatric and adult populations. EV genotyping was systematically performed. RESULTS EV positivity rates differed significantly between pediatric and adult subjects; 62.5% of pediatric cases (no adult case) were EV-positive in stool and blood for subjects for whom these samples were all collected. Similarly, the EV viral load in blood was significantly higher in pediatric subjects. Blood C-reactive protein levels were lower and the number of leucocytes/mm3 in the CSF were higher in non-viremic than in viremic pediatric subjects, respectively. A greater diversity of EV genotypes was observed in pediatric cases, with a predominance of echovirus 30 in children ≥3 years old and adults. CONCLUSION In contrast to adults, EV-disseminated infections are predominant in pediatric subjects and show different patterns of EV viral shedding. This observation may be useful for clinicians and contribute to modify current practices of patient care.
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Affiliation(s)
- S Cordey
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva 14, Switzerland; University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland.
| | - M Schibler
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva 14, Switzerland; University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - A G L'Huillier
- University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland; Pediatric Infectious Diseases Unit, Division of General Pediatrics, Department of Pediatrics, University Hospitals of Geneva, 6 Rue Willy-Donzé, 1211 Geneva 14, Switzerland
| | - N Wagner
- University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland; Pediatric Infectious Diseases Unit, Division of General Pediatrics, Department of Pediatrics, University Hospitals of Geneva, 6 Rue Willy-Donzé, 1211 Geneva 14, Switzerland
| | - A R Gonçalves
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva 14, Switzerland; University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - J Ambrosioni
- Infectious Diseases Service, Hospital Clinic-IDIBAPS, University of Barcelona, 149 Carrer del Rosselló, 08036 Barcelona, Spain
| | - S Asner
- Pediatric Infectious Diseases and Vaccinology Unit, Department of Pediatrics, University Hospital Center, 46 Rue du Bugnon, 1011 Lausanne, Switzerland; Service of Infectious Diseases, Department of Internal Medicine, University Hospital Center, 46 Rue du Bugnon, 1011 Lausanne, Switzerland
| | - L Turin
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva 14, Switzerland; University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland
| | - K M Posfay-Barbe
- University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland; Pediatric Infectious Diseases Unit, Division of General Pediatrics, Department of Pediatrics, University Hospitals of Geneva, 6 Rue Willy-Donzé, 1211 Geneva 14, Switzerland
| | - L Kaiser
- Laboratory of Virology, Infectious Diseases Service, University Hospitals of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva 14, Switzerland; University of Geneva Medical School, 1 Rue Michel-Servet, 1211 Geneva 4, Switzerland
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Wagner N, Veith M, Lötters S, Viertel B. Population and life-stage-specific effects of two herbicide formulations on the aquatic development of European common frogs (Rana temporaria). Environ Toxicol Chem 2017; 36:190-200. [PMID: 27291460 DOI: 10.1002/etc.3525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/15/2016] [Accepted: 06/09/2016] [Indexed: 05/02/2023]
Abstract
Environmental contamination is suggested to contribute to amphibian population declines. However, the effects of a contaminant on a particular amphibian species can differ among populations. The authors investigated the toxic effects of 2 herbicide formulations on different populations and on representative developmental stages of the European common frog (Rana temporaria). Larvae from forest populations were more sensitive to a commonly used glyphosate-based herbicide compared with individuals from agrarian land. Median lethal concentrations correlated with measured glyphosate levels in the breeding ponds, which may be a sign of evolved tolerances. The reverse result was observed for a less commonly used cycloxydim-based herbicide. Effects of the glyphosate-based herbicide were stronger for earlier larval stages compared with later larval stages. Hence, applications in early spring (when early larvae are present in breeding ponds) pose greater risk concerning acute toxic effects on R. temporaria. With regard to late larval stages, short exposure (96 h) of prometamorphic larvae prolonged time to metamorphosis, but only at the highest test concentration that did not significantly induce mortality. This could be due to impairment of the thyroid axis. Notably, nearly all test concentrations of the 2 herbicides provoked growth retardation. Further research on how evolved or induced tolerances are acquired, actual contamination levels of amphibian habitats, and potential endocrine effects of glyphosate-based herbicides is necessary. Environ Toxicol Chem 2017;36:190-200. © 2016 SETAC.
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Affiliation(s)
- Norman Wagner
- Trier University, Department of Biogeography, Trier, Germany
| | - Michael Veith
- Trier University, Department of Biogeography, Trier, Germany
| | - Stefan Lötters
- Trier University, Department of Biogeography, Trier, Germany
| | - Bruno Viertel
- Trier University, Department of Biogeography, Trier, Germany
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Mingo V, Lötters S, Wagner N. The use of buccal swabs as a minimal-invasive method for detecting effects of pesticide exposure on enzymatic activity in common wall lizards. Environ Pollut 2017; 220:53-62. [PMID: 27622842 DOI: 10.1016/j.envpol.2016.09.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/02/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
Habitat loss and environmental pollution are among the main causes responsible for worldwide biodiversity loss. The resulting species and population declines affect all vertebrates including reptiles. Especially in industrialized countries, pollution by agrochemicals is of remarkable importance. Here, habitat loss has historically been associated with expansion of agriculture. Species persisting in such environments do not only need to cope with habitat loss, but more recently, also with chemical intensification, namely pesticide exposure. In this study, we examined effects of different fungicide and herbicide applications on the common wall lizard (Podarcis muralis) in grape-growing areas. We used three enzymatic biomarkers (GST, GR, AChE) and for the first time saliva from buccal swabs as a minimal-invasive sampling method for detection. Our results demonstrate absorption of substances by lizards and effects of pesticide exposure on enzymatic activities. Our findings are in accordance with those of previous laboratory studies, although samples were retrieved from natural habitats. We conclude that buccal swabs could become a useful tool for the detection of pesticide exposure in reptiles and have the potential to replace more invasive methods, such as organ extraction or cardiac puncture. This is an important finding, as reptiles are non-target organisms of pesticide applications, and there is a strong need to integrate them into pesticide risk assessments.
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Affiliation(s)
- Valentin Mingo
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany.
| | - Stefan Lötters
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany
| | - Norman Wagner
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany
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Wagner N, Müller H, Viertel B. Effects of a commonly used glyphosate-based herbicide formulation on early developmental stages of two anuran species. Environ Sci Pollut Res Int 2017; 24:1495-1508. [PMID: 27785717 DOI: 10.1007/s11356-016-7927-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 10/16/2016] [Indexed: 05/02/2023]
Abstract
Environmental contamination, especially due to the increasing use of pesticides, is suggested to be one out of six main reasons for the global amphibian decline. Adverse effects of glyphosate-based herbicides on amphibians have been already discussed in several studies with different conclusions, especially regarding sublethal effects at environmentally relevant concentrations. Therefore, we studied the acute toxic effects (mortality, growth, and morphological changes) of the commonly used glyphosate-based herbicide formulation Roundup® UltraMax on early aquatic developmental stages of two anuran species with different larval types (obligate vs. facultative filtrating suspension feeders), the African clawed frog (Xenopus laevis) and the Mediterranean painted frog (Discoglossus pictus). While X. laevis is an established anuran model organism in amphibian toxicological studies, we aim to establish D. pictus as another model for species with facultative filtrating larvae. A special focus of the present study lies on malformations in X. laevis embryos, which were investigated using histological preparations. In general, embryos and larvae of X. laevis reacted more sensitive concerning lethal effects compared to early developmental stages of D. pictus. It was suggested, that especially the different morphology of their filter apparatus and the higher volume of water pumped through the buccopharynx of X. laevis larvae lead to higher exposure to the formulation. The test substance induced similar lethal effects in D. pictus larvae as it does in the teleost standard test organism used in pesticide approval, the rainbow trout (Oncorhynchus mykiss), whereas embryos of both species are apparently more tolerant and, conversely, X. laevis larvae about two times more sensitive. In both species, early larvae always reacted significantly more sensitive than embryos. Exposure to the test substance increased malformation rates in embryos of both species in a concentration-dependent manner, but not at environmentally relevant concentrations. However, the assumed field safety, based on calculated surface water concentrations of the active ingredient (glyphosate), should be validated with realistic field data and buffer strips have to be urgently regarded to any aquatic amphibian habitat.
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Affiliation(s)
- Norman Wagner
- Department of Biogeography, Trier University, Universitätsring 15, 54296, Trier, Germany.
| | - Hendrik Müller
- Department of Systematic Zoology and Evolutionary Biology with Phyletic Museum, Friedrich-Schiller-University Jena, Erbertstr. 1, 07743, Jena, Germany
| | - Bruno Viertel
- Department of Biogeography, Trier University, Universitätsring 15, 54296, Trier, Germany
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Relja B, Taraki R, Teuben MPJ, Mörs K, Wagner N, Wutzler S, Hildebrand F, Perl M, Marzi I. Sera from severe trauma patients with pneumonia and without infectious complications have differential effects on neutrophil biology. BMC Pulm Med 2016; 16:171. [PMID: 27905913 PMCID: PMC5131406 DOI: 10.1186/s12890-016-0329-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 11/22/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Major trauma patients (TP) developing imbalanced immune response are at high risk for infectious post-injury complications including pneumonia. Neutrophils play a central role in the host defense against bacteria and thereby pathogenesis of infections. While there are numerous studies about neutrophil function after trauma, data about their biology in patients who suffer from pneumonia following trauma are sparse. Here, we studied the effect of serum isolated from patients who do and do not develop infection (inf.) on the biology of neutrophils from healthy volunteers. METHODS Sera samples from eighteen TP with an injury severity score above 16 were obtained. Nine patients were grouped to no inf. group (TP without pneumonia), and nine to inf. group (TP with pneumonia). Samples were obtained at admission to emergency department (ED), a day prior pneumonia diagnosis (1 d prior inf) or at the day of diagnosis (1 d prior inf). Samples from the equal post-injury days in the corresponding no inf. group were used. Neutrophils from nine healthy volunteers were isolated. Effects for sera isolated from infected and non-infected patients on neutrophil biology were analyzed. Migratory capacity of neutrophils towards TP's serum, their CD11b and CD62L membrane receptor expression and oxidative burst activity after stimulation with TP's serum were determined and compared between groups. RESULTS Migratory capacity of neutrophils was significantly increased after trauma and persisted during the study period. CD11b expression in all groups was significantly increased. CD62L expression decreased generally in samples from ED and recovered later to baseline. Stratifying no inf. and inf. groups showed significantly decreased migratory capacity, increased CD11b and significantly decreased CD62L expression in the no inf. group. These differences persisted during the complete observational period. ROS production was strongly reduced in the no inf. group compared to the inf. group at later experimental time points. CONCLUSIONS This data indicate that patients at risk for pneumonia development have differentially and early activated neutrophils following trauma compared to patients who are not at risk for post-injury complication. Studies about the differential biology of neutrophils and their immediately after trauma modified activity depending on the post-injury clinical course are warranted, and may deliver predictive or even therapeutic strategies to control inflammation.
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Affiliation(s)
- B Relja
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Theodor-Stern Kai 7, 60590, Frankfurt, Germany.
| | - R Taraki
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Theodor-Stern Kai 7, 60590, Frankfurt, Germany
| | - M P J Teuben
- Department of Orthopaedic Trauma, University Clinic RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - K Mörs
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Theodor-Stern Kai 7, 60590, Frankfurt, Germany
| | - N Wagner
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Theodor-Stern Kai 7, 60590, Frankfurt, Germany
| | - S Wutzler
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Theodor-Stern Kai 7, 60590, Frankfurt, Germany
| | - F Hildebrand
- Department of Orthopaedic Trauma, University Clinic RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - M Perl
- Department of Trauma Surgery, Trauma Center Murnau, Murnau, Germany
| | - I Marzi
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Theodor-Stern Kai 7, 60590, Frankfurt, Germany
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Wagner N, Fahim C, Dunn K, Reid D, Sonnadara R. Otolaryngology residency education: a scoping review on the shift towards competency-based medical education. Clin Otolaryngol 2016; 42:564-572. [DOI: 10.1111/coa.12772] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2016] [Indexed: 11/27/2022]
Affiliation(s)
- N. Wagner
- Department of Surgery; McMaster University; Hamilton ON Canada
| | - C. Fahim
- Department of Surgery; McMaster University; Hamilton ON Canada
| | - K. Dunn
- Department of Surgery; McMaster University; Hamilton ON Canada
| | - D. Reid
- Department of Surgery; McMaster University; Hamilton ON Canada
| | - R.R. Sonnadara
- Department of Surgery; McMaster University; Hamilton ON Canada
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Feldmeier S, Schefczyk L, Wagner N, Heinemann G, Veith M, Lötters S. Exploring the Distribution of the Spreading Lethal Salamander Chytrid Fungus in Its Invasive Range in Europe - A Macroecological Approach. PLoS One 2016; 11:e0165682. [PMID: 27798698 PMCID: PMC5087956 DOI: 10.1371/journal.pone.0165682] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/14/2016] [Indexed: 12/11/2022] Open
Abstract
The chytrid fungus Batrachochytrium salamandrivorans (Bsal) is a dangerous pathogen to salamanders and newts. Apparently native to Asia, it has recently been detected in Western Europe where it is expected to spread and to have dramatic effects on naïve hosts. Since 2010, Bsal has led to some catastrophic population declines of urodeles in the Netherlands and Belgium. More recently, it has been discovered in additional, more distant sites including sites in Germany. With the purpose to contribute to a better understanding of Bsal, we modelled its potential distribution in its invasive European range to gain insights about the factors driving this distribution. We computed Bsal Maxent models for two predictor sets, which represent different temporal resolutions, using three different background extents to account for different invasion stage scenarios. Beside 'classical' bioclimate, we employed weather data, which allowed us to emphasize predictors in accordance with the known pathogen's biology. The most important predictors as well as spatial predictions varied between invasion scenarios and predictor sets. The most reasonable model was based on weather data and the scenario of a recent pathogen introduction. It identified temperature predictors, which represent optimal growing conditions and heat limiting conditions, as the most explaining drivers of the current distribution. This model also predicted large areas in the study region as suitable for Bsal. The other models predicted considerably less, but shared some areas which we interpreted as most likely high risk zones. Our results indicate that growth relevant temperatures measured under laboratory conditions might also be relevant on a macroecological scale, if predictors with a high temporal resolution and relevance are used. Additionally, the conditions in our study area support the possibility of a further Bsal spread, especially when considering that our models might tend to underestimate the potential distribution of Bsal.
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Affiliation(s)
| | - Lukas Schefczyk
- Department of Environmental Meteorology, Trier University, Trier, Germany
| | - Norman Wagner
- Department of Biogeography, Trier University, Trier, Germany
| | - Günther Heinemann
- Department of Environmental Meteorology, Trier University, Trier, Germany
| | - Michael Veith
- Department of Biogeography, Trier University, Trier, Germany
| | - Stefan Lötters
- Department of Biogeography, Trier University, Trier, Germany
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Eisele H, Boosz L, Wagner N, Müller A. Verschluss einer Uterusdehiszenz im Bereich der Sektionarbe mit intraabdominalem Fruchtblasenprolaps und prolabierten fetalen Anteilen in der 24. SSW. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Wagner N, Dirk D, Peveling-Oberhag A, Reese I, Rady-Pizarro U, Mitzel H, Staubach P. A Popular myth - low-histamine diet improves chronic spontaneous urticaria - fact or fiction? J Eur Acad Dermatol Venereol 2016; 31:650-655. [DOI: 10.1111/jdv.13966] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 08/19/2016] [Indexed: 11/28/2022]
Affiliation(s)
- N. Wagner
- Department of Dermatology; Clinical Center Darmstadt GmbH; Darmstadt Germany
| | - D. Dirk
- Department of Dermatology; University Medical Center of Mainz; Mainz Germany
| | - A. Peveling-Oberhag
- Department of Dermatology; University Medical Center of Mainz; Mainz Germany
| | - I. Reese
- Nutrition Counselling, Main Area Allergology; Munich Germany
| | - U. Rady-Pizarro
- Department of Dermatology; University Medical Center of Mainz; Mainz Germany
| | - H. Mitzel
- Department of Dermatology; University Medical Center of Mainz; Mainz Germany
| | - P. Staubach
- Department of Dermatology; University Medical Center of Mainz; Mainz Germany
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Mingo V, Lötters S, Wagner N. Risk of pesticide exposure for reptile species in the European Union. Environ Pollut 2016; 215:164-169. [PMID: 27182977 DOI: 10.1016/j.envpol.2016.05.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/03/2016] [Accepted: 05/05/2016] [Indexed: 05/27/2023]
Abstract
Environmental pollution has an especially high impact on wildlife. This is especially the case in industrialized countries. Although, many species within the European Union benefit from protection by the Habitats Directive, no special consideration is given to possible detrimental effects of pesticides. This is in particular remarkable as negative effects, which may lead to a regional diversity loss, have already been identified in laboratory and mesocosm studies. We conducted a pesticide exposure risk evaluation for all European reptile species with sufficient literature data on the considered biological and ecological aspects and occurrence data within agricultural areas with regular pesticide applications (102 out of 141). By using three evaluation factors - (i) pesticide exposure, (ii) physiology and (iii) life history - a taxon-specific pesticide exposure risk factor (ERF) was created. The results suggest that about half of all evaluated species, and thus at least 1/3 of all European species exhibited a high exposure risk. At the same time, two of them (Mauremys leprosa and Testudo graeca) are globally classified as threatened with extinction in the IUCN Red List of Threatened Species. Variation regarding species occurrence in exposed landscapes between pesticide admission zones within the EU is rather large. This variation is mainly caused by differing land use and species abundances between zones. At the taxonomic level, significant differences in exposure risk can be observed between threatened and non-threatened species, which can be explained by the formers remote distribution areas. Lizards display the highest sensitivity toward pesticides, although no differences in overall ERFs can be observed between taxonomic groups. By identifying species at above-average risk to pesticide exposure, species-based risk evaluations can improve conservation actions for reptiles from cultivated landscapes.
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Affiliation(s)
- Valentin Mingo
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany.
| | - Stefan Lötters
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany
| | - Norman Wagner
- Trier University, Department of Biogeography, Universitätsring 15, 54296 Trier, Germany
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Spitzen-van der Sluijs A, Martel A, Asselberghs J, Bales EK, Beukema W, Bletz MC, Dalbeck L, Goverse E, Kerres A, Kinet T, Kirst K, Laudelout A, Marin da Fonte LF, Nöllert A, Ohlhoff D, Sabino-Pinto J, Schmidt BR, Speybroeck J, Spikmans F, Steinfartz S, Veith M, Vences M, Wagner N, Pasmans F, Lötters S. Expanding Distribution of Lethal Amphibian Fungus Batrachochytrium salamandrivorans in Europe. Emerg Infect Dis 2016; 22:1286-8. [PMID: 27070102 PMCID: PMC4918153 DOI: 10.3201/eid2207.160109] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Emerging fungal diseases can drive amphibian species to local extinction. During 2010–2016, we examined 1,921 urodeles in 3 European countries. Presence of the chytrid fungus Batrachochytrium salamandrivorans at new locations and in urodeles of different species expands the known geographic and host range of the fungus and underpins its imminent threat to biodiversity.
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44
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Perez-Pomares JM, Gaertner-Rommel A, Lazzarini E, Cano E, Carmona R, Ruiz-Villalba A, Rojas A, Chau YY, Wagner KD, Wagner N, Hastie ND, Munoz-Chapuli R, Klauke B, Linke WA, Schulz U, Laser KT, Gummert J, Milting H, Bauce B, Cason M, Celeghin R, Rigato I, Carturan E, Rizzo S, Thiene G, Basso C, Pilichou K. Developmental Basis of Cardiac Inherited Diseases470Extracardiac endothelium patterns embryonic coronary arterio-venous connections471DCM-associated RBM20-mutations lead to aberrant splicing of titin and ryanodin receptor 2 in the human myocardium472The impact of missense versus nonsense mutations in arrhythmogenic cardiomyopathy phenotype. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw141] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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45
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Siebenhaar F, von Tschirnhaus E, Hartmann K, Rabenhorst A, Staubach P, Peveling-Oberhag A, Wagner N, Martus P, Carter MC, Metcalfe DD, Church MK, Maurer M, Weller K. Development and validation of the mastocytosis quality of life questionnaire: MC-QoL. Allergy 2016; 71:869-77. [PMID: 26797792 DOI: 10.1111/all.12842] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND Mastocytosis is a heterogeneous disease characterized by a clonal expansion of mast cells in various organs. The vast majority of patients affected suffer from signs and symptoms caused by mediator release from mast cells. Although the disease burden is high, there is currently no specific instrument to measure health-related quality of life (HRQoL) impairment in patients with mastocytosis. OBJECTIVE The aim of this study was to develop and validate a disease-specific tool to assess HRQoL impairment in patients with cutaneous and indolent systemic mastocytosis, the Mastocytosis Quality of Life Questionnaire (MC-QoL). METHODS Sixty-two potential MC-QoL items were developed in a combined approach consisting of semi-structured patient interviews, expert input and literature research. Item selection was performed by impact analysis with 76 patients and a final review for face validity. The resulting MC-QoL was tested for validity, reliability and influence factors. In parallel, an US American-English version of the MC-QoL was developed. RESULTS A total of 158 patients (41 CM, 41 MIS and 76 ISM) took part in the MC-QoL validation study. The final 27-item questionnaire was found to have a four-domain structure ('symptoms', 'emotions', 'social life/functioning' and 'skin'), a valid total score and an excellent test-retest reliability. Multiple regression analysis revealed disease duration, but not age, gender or skin involvement to be a significant determinant of HRQoL impairment in mastocytosis. CONCLUSIONS The MC-QoL is the first disease-specific HRQoL questionnaire for adult patients with cutaneous and indolent systemic mastocytosis. This short, validated and reliable instrument will serve as a valuable tool in future clinical studies and in routine patient care.
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Affiliation(s)
- F. Siebenhaar
- Department of Dermatology and Allergy; Interdisciplinary Mastocytosis Center Charité; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - E. von Tschirnhaus
- Department of Dermatology and Allergy; Interdisciplinary Mastocytosis Center Charité; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - K. Hartmann
- Department of Dermatology; University of Lübeck; Lübeck Germany
| | - A. Rabenhorst
- Department of Dermatology; University of Cologne; Cologne Germany
| | - P. Staubach
- Department of Dermatology; University Medical Center Mainz; Mainz Germany
| | | | - N. Wagner
- Department of Dermatology; Clinical Center Darmstadt; Darmstadt Germany
| | - P. Martus
- Department of Medical Biostatistics; Universitätsklinikum Tübingen; Tübingen Germany
| | - M. C. Carter
- Laboratory of Allergic Diseases; National Institute of Allergy and Infectious Diseases; National Institutes of Health; Bethesda MD USA
| | - D. D. Metcalfe
- Laboratory of Allergic Diseases; National Institute of Allergy and Infectious Diseases; National Institutes of Health; Bethesda MD USA
| | - M. K. Church
- Department of Dermatology and Allergy; Interdisciplinary Mastocytosis Center Charité; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - M. Maurer
- Department of Dermatology and Allergy; Interdisciplinary Mastocytosis Center Charité; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - K. Weller
- Department of Dermatology and Allergy; Interdisciplinary Mastocytosis Center Charité; Charité - Universitätsmedizin Berlin; Berlin Germany
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Bore T, Wagner N, Lesoille SD, Taillade F, Six G, Daout F, Placko D. Error Analysis of Clay-Rock Water Content Estimation with Broadband High-Frequency Electromagnetic Sensors--Air Gap Effect. Sensors (Basel) 2016; 16:s16040554. [PMID: 27096865 PMCID: PMC4851068 DOI: 10.3390/s16040554] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 04/08/2016] [Accepted: 04/08/2016] [Indexed: 11/24/2022]
Abstract
Broadband electromagnetic frequency or time domain sensor techniques present high potential for quantitative water content monitoring in porous media. Prior to in situ application, the impact of the relationship between the broadband electromagnetic properties of the porous material (clay-rock) and the water content on the frequency or time domain sensor response is required. For this purpose, dielectric properties of intact clay rock samples experimental determined in the frequency range from 1 MHz to 10 GHz were used as input data in 3-D numerical frequency domain finite element field calculations to model the one port broadband frequency or time domain transfer function for a three rods based sensor embedded in the clay-rock. The sensor response in terms of the reflection factor was analyzed in time domain with classical travel time analysis in combination with an empirical model according to Topp equation, as well as the theoretical Lichtenecker and Rother model (LRM) to estimate the volumetric water content. The mixture equation considering the appropriate porosity of the investigated material provide a practical and efficient approach for water content estimation based on classical travel time analysis with the onset-method. The inflection method is not recommended for water content estimation in electrical dispersive and absorptive material. Moreover, the results clearly indicate that effects due to coupling of the sensor to the material cannot be neglected. Coupling problems caused by an air gap lead to dramatic effects on water content estimation, even for submillimeter gaps. Thus, the quantitative determination of the in situ water content requires careful sensor installation in order to reach a perfect probe clay rock coupling.
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Affiliation(s)
- Thierry Bore
- SATIE, ENS Cachan, CNRS, Paris-Saclay University, Cachan 94230, France.
| | - Norman Wagner
- Institute of Materials Research and Testing at the Bauhaus-University, Weimar 99423, Germany.
| | | | - Frederic Taillade
- Simultation & Information Technologies for Power Generation Systems Department, EDF, Chatou 78400, France.
| | - Gonzague Six
- LISIS COSYS, Ifsttar, University Paris Est, Champs sur Marne 77477, France.
| | - Franck Daout
- SATIE, ENS Cachan, CNRS, Paris-Saclay University, Cachan 94230, France.
| | - Dominique Placko
- SATIE, ENS Cachan, CNRS, Paris-Saclay University, Cachan 94230, France.
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Wiener A, Schippers A, Wagner N, Tacke F, Ostendorf T, Honke N, Tenbrock K, Ohl K. CXCR5 is critically involved in progression of lupus through regulation of B cell and double-negative T cell trafficking. Clin Exp Immunol 2016; 185:22-32. [PMID: 26990531 DOI: 10.1111/cei.12791] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 10/16/2015] [Revised: 02/12/2016] [Accepted: 02/19/2016] [Indexed: 11/28/2022] Open
Abstract
The recruitment of immune cells to sites of tissue inflammation is orchestrated by chemokine/chemokine receptor networks. Among these, the CXCL13/CXCR5 axis is thought to be involved critically in systemic lupus erythematosus (SLE) and lupus nephritis pathogenesis. Beyond B cell abnormalities, another hallmark of SLE disease is the occurrence of aberrant T cell responses. In particular, double-negative (DN) T cells are expanded in the peripheral blood of patients with SLE and in lupus-prone mice. DN T cells induce immunoglobulin production, secrete proinflammatory cytokines and infiltrate inflamed tissue, including kidneys. We aimed to investigate how CXCR5 deficiency changes immune cell trafficking in murine lupus. We therefore crossed CXCR5(-/-) mice with B6/lpr mice, a well-established murine lupus model. B cell numbers and B cellular immune responses were diminished in CXCR5-deficient B6/lpr mice. In addition, we observed reduced accumulation of DN T cells in spleen and lymph nodes, paralleled by reduced splenomegaly and lymphadenopathy. In-vivo migration assays revealed reduced migration of CXCR5-deficient DN T cells into lymph nodes, and ex-vivo-activated CXCR5-deficient DN T cells failed to infiltrate kidneys of recipients. Moreover, DN T cells and B cells of CXCR5-deficient B6/lpr mice failed to migrate towards CXCL13 in vitro. We propose that CXCR5 is involved critically in B cell trafficking and germinal cell (GC) formation in murine lupus and in guiding pathogenic DN T cells into lymphoid organs and kidneys, and we therefore describe new pathomechanisms for the CXCL13/CXCR5 axis in SLE.
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Affiliation(s)
| | | | | | - F Tacke
- Department of Internal Medicine III
| | - T Ostendorf
- Department of Nephrology and Clinical Immunology, Medical Faculty, RWTH, Aachen, Germany
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Relja B, Menke J, Wagner N, Auner B, Voth M, Nau C, Marzi I. Effects of positive blood alcohol concentration on outcome and systemic interleukin-6 in major trauma patients. Injury 2016; 47:640-5. [PMID: 26850862 DOI: 10.1016/j.injury.2016.01.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/29/2015] [Accepted: 01/14/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND The influence of alcohol on the outcome after major trauma remains controversial. In several recent studies, alcohol has been associated with neuroprotective effects in head injuries, while others reported negative or no effects on survival and/or the in-hospital stay in major trauma patients (TP). The purpose of this study was to examine the relationship of alcohol with injury characteristics and outcome as well as to analyze possible anti-inflammatory properties in major TP. PATIENTS/METHODS 184 severely injured TP with an Injury Severity Score (ISS) ≥16 were successively enrolled. All patients had measured blood alcohol concentration (BAC). Patients were grouped according to their positive BAC (>0.5‰, BAC) vs. <0.5‰ alcohol (no BAC) upon arrival at the emergency department (ED). Injury characteristics, physiologic parameters and outcome with respect to organ or multiple organ failure (MOF), SIRS, sepsis, pneumonia, ARDS or mortality were assessed. Systemic levels of interleukin (IL)-6 at ED were determined. RESULTS Forty-nine TP had positive BAC without chronic alcohol abuse history and 135 patients had BAC levels below 0.5‰. Overall injury severity and age were comparable in both groups. No BAC TP received significantly higher numbers of packed red blood cells and fresh frozen plasma (transfused within the initial 24h or in total) compared to BAC TP. Organ failure, MOF, SIRS, sepsis, pneumonia, ARDS and the in-hospital mortality were not different between both groups. Trauma patients with positive BAC had significantly decreased leukocyte numbers and systemic IL-6 levels compared to no BAC group. There was a significant positive correlation between leukocyte counts and IL-6 as well as BAC and leukocytes. BAC levels did not correlate with IL-6. CONCLUSIONS Positive BAC is associated with reduced leukocyte numbers and lowered systemic IL-6 levels at admittance indicating immune-suppressive effects of alcohol in major trauma patients.
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Affiliation(s)
- B Relja
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany.
| | - J Menke
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - N Wagner
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - B Auner
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - M Voth
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - C Nau
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - I Marzi
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
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Struch N, Wagner N, Schnakenburg G, Weisbarth R, Klos S, Beck J, Lützen A. Thiazolylimines as novel ligand-systems for spin-crossover centred near room temperature. Dalton Trans 2016; 45:14023-9. [DOI: 10.1039/c6dt02077a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new thiazolylimine ligand system for iron(ii) complexes which stabilises spin-crossover in solution and solid states with T1/2 temperatures around room temperature has been developed.
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Affiliation(s)
- N. Struch
- Kekulé-Institut für Organische Chemie und Biochemie
- Rheinische Friedrich-Wilhelms-Universität Bonn. Gerhard-Domagk-Straße 1
- 53121 Bonn
- Germany
| | - N. Wagner
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn. Gerhard-Domagk-Straße 1
- 53121 Bonn
- Germany
| | - G. Schnakenburg
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn. Gerhard-Domagk-Straße 1
- 53121 Bonn
- Germany
| | - R. Weisbarth
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn. Gerhard-Domagk-Straße 1
- 53121 Bonn
- Germany
| | - S. Klos
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn. Gerhard-Domagk-Straße 1
- 53121 Bonn
- Germany
| | - J. Beck
- Institut für Anorganische Chemie
- Rheinische Friedrich-Wilhelms-Universität Bonn. Gerhard-Domagk-Straße 1
- 53121 Bonn
- Germany
| | - A. Lützen
- Kekulé-Institut für Organische Chemie und Biochemie
- Rheinische Friedrich-Wilhelms-Universität Bonn. Gerhard-Domagk-Straße 1
- 53121 Bonn
- Germany
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50
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Wagner N, Wyler-Lazarevic C, Yerly S, Samer C, Peytavin G, Posfay-Barbe K, Calmy A, Ambrosioni J. Corrigendum to “Dolutegravir-based antiretroviral therapy in a severely overweight child with a multi-drug resistant human immunodeficiency virus infection. A case report and review” [New Microbes New Infect] 6 (2015) 1–4]. New Microbes New Infect 2015; 8:174. [PMID: 27257500 PMCID: PMC4877397 DOI: 10.1016/j.nmni.2015.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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