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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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Wagner N, Loprete L, Duval V, Jauslin P, Benkali K, Silverberg JI, Wollenberg A, Saito T, Ahmad F, Graeber M, Winkelman W, Piketty C. Selection of Nemolizumab Clinical Dosage for Atopic Dermatitis. J Drugs Dermatol 2023; 22:1017-1020. [PMID: 37801534 DOI: 10.36849/jdd.7437r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
Nemolizumab is a monoclonal antibody directed against the interleukin-31 receptor A subunit, which is involved in the pathogenesis of pruritus and inflammation in atopic dermatitis (AD). Clinical trial results were combined with population PK (popPK) and pharmacokinetic/ pharmacodynamic (PK/PD) models to optimize nemolizumab dosing. Phase 1 and 2a clinical studies indicated that weight-based nemolizumab dosing reduced pruritus in patients with moderate-to-severe AD with good safety and tolerability even at the highest dose (3 mg/kg single dose and 2 mg/kg multiple doses). Nemolizumab PK profile was characterized by a slow absorption with peak serum concentrations reached 4.5-9.2 days post-dose, and a long terminal half-life ranging from 12.6 to 16.5 days. A change from weight-based dosing to flat dose was supported by an additional phase 2b study sponsored by Galderma. Flat dosing provides several practical advantages, including ease of preparation for self- or auto-injection and reduced chance of dosing errors. Doses of 10, 30, and 90 mg were selected based on popPK and PK/PD simulations to result in nemolizumab serum concentrations sufficient to achieve efficacy. Loading doses were administrated at the 2 lower doses in order to achieve target systemic concentrations from the first injection. The efficacy of Nemolizumab in improving cutaneous signs of inflammation and pruritus in AD and its safety profile, combined with popPK and PK/PD analyses, supported selection of the flat-dose regimen of 30 mg (with a 60 mg loading dose) given every 4 weeks subcutaneously for 16 weeks in the phase 3 ARCADIA studies sponsored by Galderma. J Drugs Dermatol. 2023;22(10):1017-1020 doi:10.36849/JDD.7437R1.
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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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Weiss J, Mallavalli S, Meckfessel M, Griffin S, Wagner N. Safe Use of Adapalene 0.1 % Gel in a non-Prescription Environment. J Drugs Dermatol 2021; 20:1330-1335. [PMID: 34898146 DOI: 10.36849/jdd.6527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Topical retinoids are the mainstay of acne therapy and, until 2016, were only available by prescription. The margin of safety (MOS) of adapalene for potential teratogenic effects, and its use in pregnancy were investigated as part of the OTC switch. OBJECTIVE To determine MOS using a maximal usage trial (MUsT) and animal embryo-fetal development studies. To conduct a thorough review of safety data with respect to use of Adapalene 0.1% Gel during pregnancy. METHODS The MUsT was multicenter, open-label pharmacokinetic study which enrolled adolescents and adult subjects with mainly severe acne vulgaris. The no observable adverse event level (NOAEL) for adapalene teratogenicity was established in rat and rabbit embryo-fetal development studies. An exhaustive review of pregnancy data from multiple safety databases was conducted. RESULTS The calculated MOS for teratogenicity was 70 for Adapalene 0.1% Gel. For the pregnancy safety review, no pregnancy malformations were attributable to topical adapalene use. LIMITATIONS Animal studies do not always predict effects in human development. Additionally, safety data is voluntarily reported and intrinsically incomplete. CONCLUSION Adapalene has a large and reassuring MOS making it suitable for OTC use. No teratogenic risk was identified in a MUsT and Pregnancy Safety Review. Adapalene 0.1% Gel is a safe and effective medication for the treatment of acne in a non-prescription environment. Based on available evidence, use of adapalene during pregnancy does not pose harm to the fetus. J Drugs Dermatol. 2021;20(12):1330-1335. doi:10.36849/JDD.6527.
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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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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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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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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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Wagner N, Benkali K, Alió Sáenz A, Poncet M, Graeber M. Clinical Pharmacology and Safety of Trifarotene, a First-in-Class RARγ-Selective Topical Retinoid. J Clin Pharmacol 2020; 60:660-668. [PMID: 32017149 PMCID: PMC7187247 DOI: 10.1002/jcph.1566] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 11/18/2019] [Indexed: 01/21/2023]
Abstract
Trifarotene is a new drug with retinoic acid receptor activity and selectivity for retinoic acid receptor-γ. The reported studies aimed at assessing the clinical pharmacology and safety of trifarotene. The clinical pharmacology of topical trifarotene up to 100 µg/g was extensively investigated through 2 maximal usage pharmacokinetic trials (MUsT) conducted in adult (≥18 years) and pediatric patients (9-17 years) with moderate to severe acne and two studies conducted in healthy volunteers: 1 thorough QTC study and 1 drug-drug interaction study with concomitantly administered oral levonorgestrel (0.15 mg)/ethinyl estradiol (0.03 mg). Safety assessments included adverse event reporting and assessment of erythema, scaling, dryness, and stinging/burning using a scale from 0 = none to 4 = severe, as well as the evaluation of the systemic safety of trifarotene through routine laboratory testing. Systemic absorption of trifarotene was generally unquantifiable in the target population, especially when applied at 50 µg/g. QTC investigations did not show any risk of cardiovascular health issues; trifarotene did not reduce the systemic exposure to oral contraceptives such as levonorgestrel/ethinyl estradiol. Safety analyses did not show local or systemic safety concerns with trifarotene up 100 µg/g, a dose twice as high as the intended market dose. Results showed that trifarotene 50 µg/g cream is well tolerated and safe, even when applied under maximized conditions in adults and pediatric acne patients presenting with severe acne. Daily use of trifarotene 50 µg/g cream was not associated with cardiovascular effects and did not result in drug-drug interaction in women of childbearing potential using oral contraception.
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Affiliation(s)
- Nathalie Wagner
- Galderma Research and Development LLC, Fort Worth, Texas, USA
| | - Khaled Benkali
- Galderma Research and Development, Sophia Antipolis, France
| | | | - Michel Poncet
- Galderma Research and Development, Sophia Antipolis, France
| | - Michael Graeber
- Galderma Research and Development LLC, Fort Worth, Texas, USA
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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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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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18
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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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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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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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24
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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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25
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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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26
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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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Osman-Ponchet H, Sevin K, Gaborit A, Wagner N, Poncet M. Fixed-Combination Gels of Adapalene and Benzoyl Peroxide Provide Optimal Percutaneous Absorption Compared to Monad Formulations of These Compounds: Results from Two In Vitro Studies. Dermatol Ther (Heidelb) 2016; 7:123-131. [PMID: 27900658 PMCID: PMC5336428 DOI: 10.1007/s13555-016-0159-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 12/01/2022] Open
Abstract
Introduction Adapalene 0.1%/benzoyl peroxide 2.5% (0.1% A/BPO) and adapalene 0.3%/BPO 2.5% (0.3% A/BPO) gels are fixed-combination options for the topical treatment of acne. However, the active compounds of these combinations are also available as monads, to be used in association or as monotherapy. These two in vitro studies determined the effect of different treatment regimens on the percutaneous absorption of adapalene (0.1% and 0.3%) gels and BPO 2.5% gel in ex vivo human skin. Methods In vitro percutaneous absorption studies were conducted using full-thickness human skin from six donors. Treatment regimens included the application of 0.1% A/BPO, 0.3% A/BPO, or four free-combination regimens of the monads. Skin samples were incubated for 24 h. Concentrations of adapalene and BPO equivalent (BPO-eq) (i.e. benzoic acid after chemical transformation of BPO) were measured using high-performance liquid chromatography. Comparison of regimens was performed using a bioequivalence criterion (estimated ratio bewteen 0.8 and 1.25). Results The fixed combination 0.3% A/BPO regimen demonstrated more than three times higher absorption of adapalene versus the fixed-combination 0.1% A/BPO. Based on the bioequivalence acceptance criterion, all four free-combination regimens were different from 0.1% A/BPO and 0.3% A/BPO, with higher adapalene release delivered by the fixed combinations versus the free combinations. For BPO-eq, the results showed that the free-combination regimens where adapalene 0.1% was applied first were different from 0.1% A/BPO, with lower BPO-eq release delivered by these regimens compared to the fixed combination. The regimen adapalene 0.3% for 10 h followed by BPO 2.5% delivered lower BPO-eq release compared to the fixed combination. Conclusion The fixed-combination A/BPO gels provide optimal percutaneous absorption of the active compounds compared to free combinations of adapalene 0.1%, adapalene 0.3%, and BPO 2.5%. The higher concentration of adapalene in the 0.3% A/BPO gel and the resulting higher absorption may explain higher clinical efficacy.
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Affiliation(s)
- Hanan Osman-Ponchet
- Galderma R&D, Les Templiers, 2400 Route des Colles, BP87, 06902, Sophia Antipolis, France.
| | - Karine Sevin
- Galderma R&D, Les Templiers, 2400 Route des Colles, BP87, 06902, Sophia Antipolis, France
| | - Alexandre Gaborit
- Galderma R&D, Les Templiers, 2400 Route des Colles, BP87, 06902, Sophia Antipolis, France
| | - Nathalie Wagner
- Galderma R&D, Les Templiers, 2400 Route des Colles, BP87, 06902, Sophia Antipolis, France
| | - Michel Poncet
- Galderma R&D, Les Templiers, 2400 Route des Colles, BP87, 06902, Sophia Antipolis, France
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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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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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30
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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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31
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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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32
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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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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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Benkali K, Rony F, Graeber M, Jacovella J, Chappuis JP, Peirone MH, Poncet M, Delage S, Bouer R, Wagner N. Clinical pharmacokinetics profile of ivermectin 1% cream after dermal applications on the face. World J Dermatol 2016; 5:57-64. [DOI: 10.5314/wjd.v5.i1.57] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/15/2015] [Accepted: 11/25/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the pharmacokinetics profile of Ivermectin 1% cream after topical treatment in patients with papulopustular rosacea (PPR).
METHODS: Ivermectin 1% cream is a new, effective, and safe treatment for PPR. The human pharmacokinetic (PK) profile of ivermectin and its circulating metabolites were assessed following topical application of ivermectin 1% cream to the face. Clinical PK assessments were conducted after 4 wk of treatment using healthy volunteers and PPR subjects. Additionally, PK sampling was conducted up to 1 year of treatment in clinical phase 3 studies. Plasma concentrations of ivermectin and ivermectin metabolites were determined using high-performance liquid chromatography with fluorescence detection after a specific derivation to increase sensitivity.
RESULTS: Systemic exposure to ivermectin was quantifiable at low levels in healthy and moderate to severe PPR subjects following the first topical application of ivermectin 1% cream (mean Cmax of 0.5 ± 0.2 ng/mL and 0.7 ± 0.5 ng/mL in healthy volunteers and PPR subjects, respectively). Ivermectin plasma levels reached a plateau after 2 wk of repeated topical application, indicating that steady-state concentrations had been reached. No further ivermectin plasma accumulation was observed during the long-term clinical studies that investigated ivermectin treatment up to 1 year. Investigation of ivermectin metabolites indicated that 2 circulating metabolites represented more than 10% of parent drug systemic exposure at steady state. Repeated topical application of ivermectin 1% cream resulted in lower systemic exposure levels when compared with orally administered ivermectin, suggesting limited transdermal absorption of ivermectin. Topically applied ivermectin is cleared from the plasma slowly (with a prolonged plasma half-life when compared to the oral route).
CONCLUSION: Applications of ivermectin 1% cream result in low systemic exposure levels. Steady–state conditions are achieved by 2 wk without further accumulation under chronic treatment.
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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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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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Ohl K, Wiener A, Schippers A, Wagner N, Tenbrock K. FRI0382 CXCR5 Directs Migration of Pathogenic Double-Negative T Cells in SLE. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Zepp F, Wagner N. Autoimmunerkrankungen bei Kindern. Monatsschr Kinderheilkd 2015. [DOI: 10.1007/s00112-014-3277-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Wagner N. Neue Entwicklungen in der Therapie chronisch-entzündlicher Darmkrankheiten. Monatsschr Kinderheilkd 2015. [DOI: 10.1007/s00112-014-3280-9] [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: 12/01/2022]
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Ohl K, Wiener A, Schippers A, Wagner N, Tenbrock K. Interleukin-2 treatment reverses effects of cAMP-responsive element modulator α-over-expressing T cells in autoimmune-prone mice. Clin Exp Immunol 2015; 181:76-86. [PMID: 25817470 DOI: 10.1111/cei.12629] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2015] [Indexed: 12/28/2022] Open
Abstract
Systemic autoimmune diseases, such as systemic lupus erythematosus (SLE), are often characterized by a failure of self-tolerance and result in an uncontrolled activation of B cells and effector T cells. Interleukin (IL)-2 critically maintains homeostasis of regulatory T cells (T(reg)) and effector T cells in the periphery. Previously, we identified the cAMP-responsive element modulator α (CREMα) as a major factor responsible for decreased IL-2 production in T cells from SLE patients. Additionally, using a transgenic mouse that specifically over-expresses CREMα in T cells (CD2CREMαtg), we provided in-vivo evidence that CREMα indeed suppresses IL-2 production. To analyse the effects of CREMα in an autoimmune prone mouse model we introduced a Fas mutation in the CD2CREMαtg mice (FVB/Fas(-/-) CD2CREMαtg). Overexpression of CREMα strongly accelerated the lymphadenopathy and splenomegaly in the FVB/Fas(-/-) mice. This was accompanied by a massive expansion of double-negative (DN) T cells, enhanced numbers of interferon (IFN)-γ-producing T cells and reduced percentages of T(regs). Treatment of FVB/Fas(-/-) CD2CREMαtg mice with IL-2 restored the percentage of T(regs) and reversed increased IFN-γ production, but did not affect the number of DNTs. Our data indicate that CREMα contributes to the failure of tolerance in SLE by favouring effector T cells and decreasing regulatory T cells, partially mediated by repression of IL-2 in vivo.
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Affiliation(s)
- K Ohl
- Department of Pediatrics, RWTH Aachen, Aachen, Germany.,IZKF Aachen, Medical Faculty, RWTH Aachen, Aachen, Germany
| | - A Wiener
- Department of Pediatrics, RWTH Aachen, Aachen, Germany
| | - A Schippers
- Department of Pediatrics, RWTH Aachen, Aachen, Germany
| | - N Wagner
- Department of Pediatrics, RWTH Aachen, Aachen, Germany
| | - K Tenbrock
- Department of Pediatrics, RWTH Aachen, Aachen, Germany
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Wagner N, Håkansson E, Wahler S, Panke S, Bechtold M. Multi-objective optimization for the economic production of d-psicose using simulated moving bed chromatography. J Chromatogr A 2015; 1398:47-56. [PMID: 25943832 DOI: 10.1016/j.chroma.2015.04.008] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 04/01/2015] [Accepted: 04/05/2015] [Indexed: 12/31/2022]
Abstract
The biocatalytic production of rare carbohydrates from available sugar sources rapidly gains interest as a route to acquire industrial amounts of rare sugars for food and fine chemical applications. Here we present a multi-objective optimization procedure for a simulated moving bed (SMB) process for the production of the rare sugar d-psicose from enzymatically produced mixtures with its epimer d-fructose. First, model parameters were determined using the inverse method and experimentally validated on a 2-2-2-2 lab-scale SMB plant. The obtained experimental purities (PUs) were in excellent agreement with the simulated data derived from a transport-dispersive true-moving bed model demonstrating the feasibility of the proposed design. In the second part the performance of the separation was investigated in a multi-objective optimization study addressing the cost-contributing performance parameters productivity (PR) and desorbent requirement (DR) as a function of temperature. While rare sugar SMB operation under conditions of low desorbent consumption was found to be widely unaffected by temperature, SMB operation focusing on increased PR significantly benefited from high temperatures, with possible productivities increasing from 3.4kg(Lday)(-1) at 20°C to 5kg(Lday)(-1) at 70°C, indicating that decreased selectivity at higher temperatures could be fully compensated for by the higher mass transfer rates, as they translate into reduced switch times and hence higher PR. A DR/PR Pareto optimization suggested a similar but even more pronounced trend also under relaxed PU requirements, with the PR increasing from 4.3kg(Lday)(-1) to a maximum of 7.8kg(Lday)(-1) for SMB operation at 50°C when the PU of the non-product stream was reduced from 99.5% to 90%. Based on the in silico optimization results experimental SMB runs were performed yielding considerable PRs of 1.9 (30°C), 2.4 (50°C) and 2.6kg(Lday)(-1) (70°C) with rather low DR (27L per kg of rare sugar produced) on a lab-scale SMB installation.
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Affiliation(s)
- N Wagner
- Bioprocess Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - E Håkansson
- Bioprocess Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - S Wahler
- Bioprocess Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - S Panke
- Bioprocess Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - M Bechtold
- Bioprocess Laboratory, Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland.
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Cañas NA, Baltazar AL, Morais MA, Freitag T, Wagner N, Friedrich K. Fabrication of sulfur cathodes by wet-powder spraying and the understanding of degradation. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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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Wagner N, Wyler-Lazarevic CA, Yerly S, Samer C, Peytavin G, Posfay-Barbe KM, Calmy A, Ambrosioni J. Dolutegravir-based antiretroviral therapy in a severely overweight child with a multidrug-resistant human immunodeficiency virus infection. A case report and review. New Microbes New Infect 2015; 6:1-4. [PMID: 26082840 PMCID: PMC4430707 DOI: 10.1016/j.nmni.2015.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 02/02/2015] [Accepted: 02/18/2015] [Indexed: 12/03/2022] Open
Abstract
The management of multidrug-resistant human immunodeficiency virus (MDR HIV) infections in children is particularly challenging due to the lack of experience with new drugs. Dolutegravir, combined with an optimized antiretroviral background therapy, is promising for the treatment of MDR HIV and has been approved recently for adults and adolescents. Data for children are extremely limited. We describe the efficacy, safety and plasmatic levels of a dolutegravir-based, complex active antiretroviral treatment regimen in a severely overweight 11-year-old child infected with an MDR HIV strain.
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Affiliation(s)
- N Wagner
- Department of Paediatrics, Switzerland
| | | | - S Yerly
- Laboratory of Virology, Department of Genetics and Laboratory Medicine, Switzerland
| | - C Samer
- Division of Clinical Pharmacology and Toxicology, University Hospitals of Geneva, Switzerland
| | - G Peytavin
- Department of Clinical Pharmaco-Toxicology, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, Paris, France
| | | | - A Calmy
- Division of Infectious Diseases, Department of Medical Specialties, Geneva University, Geneva, Switzerland
| | - J Ambrosioni
- Division of Infectious Diseases, Department of Medical Specialties, Geneva University, Geneva, Switzerland ; Infectious Diseases Department, Hospital-Clinic-IDIBAPS, Barcelona, Spain
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Benkali K, Leoni M, Rony F, Bouer R, Fernando A, Graeber M, Wagner N. Comparative pharmacokinetics and bioavailability of brimonidine following ocular and dermal administration of brimonidine tartrate ophthalmic solution and gel in patients with moderate-to-severe facial erythema associated with rosacea. Br J Dermatol 2014; 171:162-9. [PMID: 24506775 DOI: 10.1111/bjd.12881] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND Persistent facial erythema is the most common primary pathological feature of rosacea, the only treatment for which is brimonidine tartrate (BT) gel. OBJECTIVES To assess the relative bioavailability of topical BT gel in comparison with the ophthalmic BT solution. METHODS A pharmacokinetic study was conducted to compare intraindividual systemic exposures after dermal application of BT gel (0·07%, 0·18% and 0·5%) under maximal use conditions in patients with moderate-to-severe facial erythema associated with rosacea, and administration of BT ophthalmic solution 0·2%. RESULTS Patients who received BT ophthalmic solution 0·2% three times a day for 1 day had a mean Cmax of 54 ± 28 pg mL(-1) and a mean 0-24-h area under the curve (AUC0-24 h ) of 568 ± 277 pg h mL(-1) . Topical application of BT gel for 29 days resulted in quantifiable systemic exposure in 22%, 48%, 71% and 79% of patients who received BT gel 0·07% twice daily, 0·18% once daily, 0·18% twice daily and 0·5% once daily, respectively. The mean Cmax values for the BT gels ranged between 13 and 25 pg mL(-1) , and mean AUC0-24 h values ranged between 42 and 290 pg h mL(-1) . Systemic exposure increased with applied dose, with no drug accumulation for the duration of treatment. The systemic exposure observed with the highest dose of BT gel (0·5% once daily) was significantly lower than the systemic levels observed for the ophthalmic solution. 0·2% apply for all the concentrations. CONCLUSIONS The systemic safety profile of BT gel may be considered better than that of the ophthalmic solution.
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Affiliation(s)
- K Benkali
- Galderma R&D, Sophia Antipolis, France
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Weibel Galluzzo C, Wagner N, Michel Y, Jackson Y, Chappuis F. [Emerging parasitic diseases]. Rev Med Suisse 2014; 10:1008-1013. [PMID: 24908745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Travels, migration and circulation of goods facilitate the emergence of new infectious diseases often unrecognized outside endemic areas. Most of emerging infections are of viral origin. Muscular Sarcocystis infection, an acute illness acquired during short trips to Malaysia, and Chagas disease, a chronic illness with long incubation period found among Latin American migrants, are two very different examples of emerging parasitic diseases. The former requires a preventive approach for travelers going to Malaysia and must be brought forth when they return with fever, myalgia and eosinophilia, while the latter requires a proactive attitude to screen Latin American migrant populations that may face difficulties in accessing care.
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Wagner N. Zeitschrift Molecular and Cellular Pediatrics. Monatsschr Kinderheilkd 2014. [DOI: 10.1007/s00112-013-3061-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Scheithauer S, Trepels-Kottek S, Häfner H, Keller D, Ittel T, Wagner N, Heimann K, Schoberer M, Schwarz R, Haase G, Waitschies B, Orlikowsky T, Lemmen S. Healthcare worker-related MRSA cluster in a German neonatology level III ICU: A true European story. Int J Hyg Environ Health 2014; 217:307-11. [DOI: 10.1016/j.ijheh.2013.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 11/29/2022]
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Honke N, Ohl K, Wiener A, Wagner N, Wüller S, Tenbrock K. PReS-FINAL-2085: The p38-mediated rapid downregulation of cell surface gp130 expression impairs IL-6 signaling in the synovial fluid of juvenile idiopathic arthritis patients. Pediatr Rheumatol Online J 2013. [PMCID: PMC4044227 DOI: 10.1186/1546-0096-11-s2-p97] [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: 11/10/2022] Open
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Verjans E, Wiener A, Ohl K, Wagner N, Uhlig S, Martin C, Tenbrock K. PReS-FINAL-2350: Overexpression of crem alpha leads to a higher inflammatory response in lps induced acute lung injury (ali) and might therefore trigger infectious complications in patients with autoimmune diseases. Pediatr Rheumatol Online J 2013. [PMCID: PMC4044451 DOI: 10.1186/1546-0096-11-s2-p340] [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: 11/10/2022] Open
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