1
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Vogel K, Arra A, Lingel H, Bretschneider D, Prätsch F, Schanze D, Zenker M, Balk S, Bruder D, Geffers R, Hachenberg T, Arens C, Brunner-Weinzierl MC. Bifidobacteria shape antimicrobial T-helper cell responses during infancy and adulthood. Nat Commun 2023; 14:5943. [PMID: 37741816 PMCID: PMC10517955 DOI: 10.1038/s41467-023-41630-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 09/11/2023] [Indexed: 09/25/2023] Open
Abstract
Microbial infections early in life are challenging for the unexperienced immune system. The SARS-CoV-2 pandemic again has highlighted that neonatal, infant, child, and adult T-helper(Th)-cells respond differently to infections, and requires further understanding. This study investigates anti-bacterial T-cell responses against Staphylococcus aureus aureus, Staphylococcus epidermidis and Bifidobacterium longum infantis in early stages of life and adults and shows age and pathogen-dependent mechanisms. Beside activation-induced clustering, T-cells stimulated with Staphylococci become Th1-type cells; however, this differentiation is mitigated in Bifidobacterium-stimulated T-cells. Strikingly, prestimulation of T-cells with Bifidobacterium suppresses the activation of Staphylococcus-specific T-helper cells in a cell-cell dependent manner by inducing FoxP3+CD4+ T-cells, increasing IL-10 and galectin-1 secretion and showing a CTLA-4-dependent inhibitory capacity. Furthermore Bifidobacterium dampens Th responses of severely ill COVID-19 patients likely contributing to resolution of harmful overreactions of the immune system. Targeted, age-specific interventions may enhance infection defence, and specific immune features may have potential cross-age utilization.
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Affiliation(s)
- Katrin Vogel
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Aditya Arra
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Holger Lingel
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Florian Prätsch
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital, Otto-von-Guericke-University, Magdeburg, Germany
| | - Denny Schanze
- Institute of Human Genetics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Martin Zenker
- Institute of Human Genetics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Silke Balk
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Robert Geffers
- Genome Analytics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Thomas Hachenberg
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital, Otto-von-Guericke-University, Magdeburg, Germany
| | - Christoph Arens
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
- Justus-Liebig-University Gießen, University Hospital of Gießen and Marburg (UKGM), Gießen Campus, Department of Otorhinolaryngology, Head/Neck Surgery and Plastic Surgery, Gießen, Germany
| | - Monika C Brunner-Weinzierl
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany.
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2
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Witt M, Cherri M, Ferraro M, Yapto C, Vogel K, Schmidt L, Haag R, Danker K, Dommisch H. Anti-inflammatory IL-8 Regulation via an Advanced Drug Delivery System at the Oral Mucosa. ACS Appl Bio Mater 2023. [PMID: 37216981 DOI: 10.1021/acsabm.3c00024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Oral inflammatory diseases are highly prevalent in the worldwide population. Topical treatment of inflammation is challenging due to dilution effects of saliva and crevicular fluid. Thus, there is a great medical need to develop smart anti-inflammatory drug delivery systems for mucosa treatment. We compared two promising anti-inflammatory dendritic poly(glycerol-caprolactone) sulfate (dPGS-PCL) polymers for their applicability to the oral mucosa. Using an ex vivo porcine tissue model, cell monolayers, and full-thickness 3D oral mucosal organoids, the polymers were evaluated for muco-adhesion, penetration, and anti-inflammatory properties. The biodegradable dPGS-PCL97 polymers adhered to and penetrated the masticatory mucosa within seconds. No effects on metabolic activity and cell proliferation were found. dPGS-PCL97 revealed a significant downregulation of pro-inflammatory cytokines with a clear preference for IL-8 in cell monolayers and mucosal organoids. Thus, dPGS-PCL97 exhibits excellent properties for topical anti-inflammatory therapy, suggesting new therapeutic avenues in the treatment of oral inflammatory diseases.
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Affiliation(s)
- Maren Witt
- Department of Periodontology, Oral Medicine and Oral Surgery, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin 14197 , Germany
| | - Mariam Cherri
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Magda Ferraro
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Cynthia Yapto
- Institute of Biochemistry, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Katrin Vogel
- Department of Periodontology, Oral Medicine and Oral Surgery, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin 14197 , Germany
| | - Lena Schmidt
- Institute of Biochemistry, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, Berlin 14195, Germany
| | - Kerstin Danker
- Institute of Biochemistry, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Henrik Dommisch
- Department of Periodontology, Oral Medicine and Oral Surgery, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin 14197 , Germany
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3
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Majer C, Lingel H, Arra A, Heuft HG, Bretschneider D, Balk S, Vogel K, Brunner-Weinzierl MC. PD-1/PD-L1 Control of Antigen-Specifically Activated CD4 T-Cells of Neonates. Int J Mol Sci 2023; 24:ijms24065662. [PMID: 36982735 PMCID: PMC10051326 DOI: 10.3390/ijms24065662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023] Open
Abstract
Newborns are highly susceptible to infections; however, the underlying mechanisms that regulate the anti-microbial T-helper cells shortly after birth remain incompletely understood. To address neonatal antigen-specific human T-cell responses against bacteria, Staphylococcus aureus (S. aureus) was used as a model pathogen and comparatively analyzed in terms of the polyclonal staphylococcal enterotoxin B (SEB) superantigen responses. Here, we report that neonatal CD4 T-cells perform activation-induced events upon S. aureus/APC-encounter including the expression of CD40L and PD-1, as well as the production of Th1 cytokines, concomitant to T-cell proliferation. The application of a multiple regression analysis revealed that the proliferation of neonatal T-helper cells was determined by sex, IL-2 receptor expression and the impact of the PD-1/PD-L1 blockade. Indeed, the treatment of S. aureus-activated neonatal T-helper cells with PD-1 and PD-L1 blocking antibodies revealed the specific regulation of the immediate neonatal T-cell responses with respect to the proliferation and frequencies of IFNγ producers, which resembled in part the response of adults’ memory T-cells. Intriguingly, the generation of multifunctional T-helper cells was regulated by the PD-1/PD-L1 axis exclusively in the neonatal CD4 T-cell lineage. Together, albeit missing memory T-cells in neonates, their unexperienced CD4 T-cells are well adapted to mount immediate and strong anti-bacterial responses that are tightly controlled by the PD-1/PD-L1 axis, thereby resembling the regulation of recalled memory T-cells of adults.
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Affiliation(s)
- Christiane Majer
- Department of Experimental Pediatrics, Medical Faculty, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Holger Lingel
- Department of Experimental Pediatrics, Medical Faculty, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Aditya Arra
- Department of Experimental Pediatrics, Medical Faculty, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Hans-Gert Heuft
- Institute of Transfusion Medicine and Immunohematology, Medical Faculty, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | | | - Silke Balk
- Department of Experimental Pediatrics, Medical Faculty, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Katrin Vogel
- Department of Experimental Pediatrics, Medical Faculty, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Monika C. Brunner-Weinzierl
- Department of Experimental Pediatrics, Medical Faculty, Otto-von-Guericke-University, 39120 Magdeburg, Germany
- Correspondence: ; Tel.: +49-391-6724003
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4
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Jamaludeen N, Lehmann J, Beyer C, Vogel K, Pierau M, Brunner-Weinzierl M, Spiliopoulou M. Assessment of Immune Status Using Inexpensive Cytokines: A Literature Review and Learning Approaches. Sensors (Basel) 2022; 22:9785. [PMID: 36560154 PMCID: PMC9786078 DOI: 10.3390/s22249785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/22/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
The emergence of point-of-care (POC) testing has lately been promoted to deliver rapid, reliable medical tests in critical life-threatening situations, especially in resource-limited settings. Recently, POC tests have witnessed further advances due to the technological revolution in smartphones. Smartphones are integrated as reliable readers to the POC results to improve their quantitative detection. This has enabled the use of more complex medical tests by the patient him/herself at home without the need for professional staff and sophisticated equipment. Cytokines, the important immune system biomarkers, are still measured today using the time-consuming Enzyme-Linked Immunosorbent Assay (ELISA), which can only be performed in specially equipped laboratories. Therefore, in this study, we investigate the current development of POC technologies suitable for the home testing of cytokines by conducting a PRISMA literature review. Then, we classify the collected technologies as inexpensive and expensive depending on whether the cytokines can be measured easily at home or not. Additionally, we propose a machine learning-based solution to even increase the efficiency of the cytokine measurement by leveraging the cytokines that can be inexpensively measured to predict the values of the expensive ones. In total, we identify 12 POCs for cytokine quantification. We find that Interleukin 1β (IL-1β), Interleukin 3 (IL-3), Interleukin 6 (IL-6), Interleukin 8 (IL-8) and Tumor necrosis factor (TNF) can be measured with inexpensive POC technology, namely at home. We build machine-learning models to predict the values of other expensive cytokines such as Interferon-gamma (IFN-γ), IL-10, IL-2, IL-17A, IL-17F, IL-4 and IL-5 by relying on the identified inexpensive ones in addition to the age of the individual. We evaluate to what extent the built machine learning models can use the inexpensive cytokines to predict the expensive ones on 351 healthy subjects from the public dataset 10k Immunomes. The models for IFN-γ show high results for the coefficient of determination: R2 = 0.743. The results for IL-5 and IL-4 are also promising, whereas the predictive model of IL-10 achieves only R2 = 0.126. Lastly, the results demonstrate the vital role of TNF and IL-6 in the immune system due to its high importance in the predictions of all the other expensive cytokines.
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Affiliation(s)
- Noor Jamaludeen
- Knowledge Management & Discovery Lab, Otto-von-Guericke University, 39106 Magdeburg, Germany
| | - Juliane Lehmann
- Knowledge Management & Discovery Lab, Otto-von-Guericke University, 39106 Magdeburg, Germany
| | - Christian Beyer
- Knowledge Management & Discovery Lab, Otto-von-Guericke University, 39106 Magdeburg, Germany
| | - Katrin Vogel
- Department of Experimental Pediatrics, University Hospital, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Mandy Pierau
- Department of Experimental Pediatrics, University Hospital, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Monika Brunner-Weinzierl
- Department of Experimental Pediatrics, University Hospital, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Myra Spiliopoulou
- Knowledge Management & Discovery Lab, Otto-von-Guericke University, 39106 Magdeburg, Germany
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5
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Meltendorf S, Vogel K, Thurm C, Prätsch F, Reinhold A, Färber J, Heuft H, Kaasch AJ, Hachenberg T, Weinzierl S, Schraven B, Reinhold D, Brunner‐Weinzierl MC, Lingel H. IL-13 determines specific IgE responses and SARS-CoV-2 immunity after mild COVID-19 and novel mRNA vaccination. Eur J Immunol 2022; 52:1972-1979. [PMID: 36271745 PMCID: PMC9874813 DOI: 10.1002/eji.202249951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 09/23/2022] [Accepted: 10/20/2022] [Indexed: 01/27/2023]
Abstract
After recovery, mild and severe COVID-19 diseases are associated with long-term effects on the host immune system, such as prolonged T-cell activation or accumulation of autoantibodies. In this study, we show that mild SARS-CoV-2 infections, but not SARS-CoV-2 spike mRNA vaccinations, cause durable atopic risk factors such as a systemic Th2- and Th17-type environment as well as activation of B cells responsive of IgE against aeroallergens from house dust mite and mold. At an average of 100 days post mild SARS-CoV-2 infections, anti-mold responses were associated with low IL-13 levels and increased pro-inflammatory IL-6 titers. Acutely severely ill COVID-19 patients instead showed no evidence of atopic reactions. Considering convalescents of mild COVID-19 courses and mRNA-vaccinated individuals together, IL-13 was the predominant significantly upregulated factor, likely shaping SARS-CoV-2 immunity. Application of multiple regression analysis revealed that the IL-13 levels of both groups were determined by the Th17-type cytokines IL-17A and IL-22. Taken together, these results implicate a critical role for IL-13 in the aftermath of SARS-CoV-2 mild infections and mRNA vaccinations, conferring protection against airway directed, atopic side reactions that occur in mildly experienced COVID-19.
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Affiliation(s)
- Stefan Meltendorf
- Department of Experimental PediatricsOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | - Katrin Vogel
- Department of Experimental PediatricsOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | - Christoph Thurm
- Institute of Molecular and Clinical ImmunologyOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | - Florian Prätsch
- Department of Anesthesiology and Intensive Care MedicineUniversity Hospital MagdeburgMagdeburgGermany
| | - Annegret Reinhold
- Institute of Molecular and Clinical ImmunologyOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | - Jacqueline Färber
- Institute of Medical Microbiology and Hospital HygieneOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | - Hans‐Gert Heuft
- Department of Transfusion Medicine and ImmunohematologyUniversity Hospital MagdeburgMagdeburgGermany
| | - Achim J. Kaasch
- Institute of Medical Microbiology and Hospital HygieneOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | - Thomas Hachenberg
- Department of Anesthesiology and Intensive Care MedicineUniversity Hospital MagdeburgMagdeburgGermany
| | - Stefan Weinzierl
- Audio‐Communication GroupTechnical University BerlinBerlinGermany
| | - Burkhart Schraven
- Institute of Molecular and Clinical ImmunologyOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | - Dirk Reinhold
- Institute of Molecular and Clinical ImmunologyOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
| | | | - Holger Lingel
- Department of Experimental PediatricsOtto‐von‐Guericke‐University MagdeburgMagdeburgGermany
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6
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Beyer C, Jamaludeen N, Vogel K, Pierau M, Lingel H, Meltendorf S, Spiliopoulou M, Brunner-Weinzierl M. Analysis of exhausted T cells, systemically enhanced cytokine levels
ex vivo and Machine Learning Facilitated Search for Ageing-Related
Biomarkers. Das Gesundheitswesen 2022. [DOI: 10.1055/s-0042-1753969] [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: 12/12/2022]
Affiliation(s)
- C Beyer
- Otto-von-Guericke-University Magdeburg, Research Lab Knowledge
Management & Discovery, Magdeburg, Deutschland
| | - N Jamaludeen
- Otto-von-Guericke-University Magdeburg, Research Lab Knowledge
Management & Discovery, Magdeburg, Deutschland
| | - K Vogel
- Otto-von-Guericke-University Magdeburg, University Children's
Hospital, Department of Experimental Paediatrics, Magdeburg,
Deutschland
| | - M Pierau
- Otto-von-Guericke-University Magdeburg, University Children's
Hospital, Department of Experimental Paediatrics, Magdeburg,
Deutschland
| | - H Lingel
- Otto-von-Guericke-University Magdeburg, University Children's
Hospital, Department of Experimental Paediatrics, Magdeburg,
Deutschland
| | - S Meltendorf
- Otto-von-Guericke-University Magdeburg, University Children's
Hospital, Department of Experimental Paediatrics, Magdeburg,
Deutschland
| | - M Spiliopoulou
- Otto-von-Guericke-University Magdeburg, Research Lab Knowledge
Management & Discovery, Magdeburg, Deutschland
| | - M Brunner-Weinzierl
- Otto-von-Guericke-University Magdeburg, University Children's
Hospital, Department of Experimental Paediatrics, Magdeburg,
Deutschland
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7
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Kapoor G, Chekhonin P, Kaden C, Vogel K, Bergner F. Microstructure-informed prediction and measurement of nanoindentation hardness of an Fe-9Cr alloy irradiated with Fe-ions of 1 and 5 MeV energy. Nuclear Materials and Energy 2022. [DOI: 10.1016/j.nme.2021.101105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Malerba L, Caturla M, Gaganidze E, Kaden C, Konstantinović M, Olsson P, Robertson C, Rodney D, Ruiz-Moreno A, Serrano M, Aktaa J, Anento N, Austin S, Bakaev A, Balbuena J, Bergner F, Boioli F, Boleininger M, Bonny G, Castin N, Chapman J, Chekhonin P, Clozel M, Devincre B, Dupuy L, Diego G, Dudarev S, Fu CC, Gatti R, Gélébart L, Gómez-Ferrer B, Gonçalves D, Guerrero C, Gueye P, Hähner P, Hannula S, Hayat Q, Hernández-Mayoral M, Jagielski J, Jennett N, Jiménez F, Kapoor G, Kraych A, Khvan T, Kurpaska L, Kuronen A, Kvashin N, Libera O, Ma PW, Manninen T, Marinica MC, Merino S, Meslin E, Mompiou F, Mota F, Namburi H, Ortiz C, Pareige C, Prester M, Rajakrishnan R, Sauzay M, Serra A, Simonovski I, Soisson F, Spätig P, Tanguy D, Terentyev D, Trebala M, Trochet M, Ulbricht A, M.Vallet, Vogel K, Yalcinkaya T, Zhao J. Multiscale modelling for fusion and fission materials: The M4F project. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.101051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Jamaludeen N, Beyer C, Billing U, Vogel K, Brunner-Weinzierl M, Spiliopoulou M. Potential of Point-of-Care and At-Home Assessment of Immune Status via Rapid Cytokine Detection and Questionnaire-Based Anamnesis. Sensors (Basel) 2021; 21:4960. [PMID: 34372196 PMCID: PMC8348245 DOI: 10.3390/s21154960] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/30/2021] [Accepted: 07/07/2021] [Indexed: 12/29/2022]
Abstract
Monitoring the immune system's status has emerged as an urgent demand in critical health conditions. The circulating cytokine levels in the blood reflect a thorough insight into the immune system status. Indeed, measuring one cytokine may deliver more information equivalent to detecting multiple diseases at a time. However, if the reported cytokine levels are interpreted with considering lifestyle and any comorbid health conditions for the individual, this will promote a more precise assessment of the immune status. Therefore, this study addresses the most recent advanced assays that deliver rapid, accurate measuring of the cytokine levels in human blood, focusing on add-on potentials for point-of-care (PoC) or personal at-home usage, and investigates existing health questionnaires as supportive assessment tools that collect all necessary information for the concrete analysis of the measured cytokine levels. We introduced a ten-dimensional featuring of cytokine measurement assays. We found 15 rapid cytokine assays with assay time less than 1 h; some could operate on unprocessed blood samples, while others are mature commercial products available in the market. In addition, we retrieved several health questionnaires that addressed various health conditions such as chronic diseases and psychological issues. Then, we present a machine learning-based solution to determine what makes the immune system fit. To this end, we discuss how to employ topic modeling for deriving the definition of immune fitness automatically from literature. Finally, we propose a prototype model to assess the fitness of the immune system through leveraging the derived definition of the immune fitness, the cytokine measurements delivered by a rapid PoC immunoassay, and the complementary information collected by the health questionnaire about other health factors. In conclusion, we discovered various advanced rapid cytokine detection technologies that are promising candidates for point-of-care or at-home usage; if paired with a health status questionnaire, the assessment of the immune system status becomes solid and we demonstrated potentials for promoting the assessment tool with data mining techniques.
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Affiliation(s)
- Noor Jamaludeen
- Knowledge Management & Discovery Lab, Otto-von-Guericke University, 39106 Magdeburg, Germany; (C.B.); (M.S.)
| | - Christian Beyer
- Knowledge Management & Discovery Lab, Otto-von-Guericke University, 39106 Magdeburg, Germany; (C.B.); (M.S.)
| | - Ulrike Billing
- Department of Experimental Pediatrics, University Hospital, Otto-von-Guericke University, 39120 Magdeburg, Germany; (U.B.); (K.V.); (M.B.-W.)
| | - Katrin Vogel
- Department of Experimental Pediatrics, University Hospital, Otto-von-Guericke University, 39120 Magdeburg, Germany; (U.B.); (K.V.); (M.B.-W.)
| | - Monika Brunner-Weinzierl
- Department of Experimental Pediatrics, University Hospital, Otto-von-Guericke University, 39120 Magdeburg, Germany; (U.B.); (K.V.); (M.B.-W.)
| | - Myra Spiliopoulou
- Knowledge Management & Discovery Lab, Otto-von-Guericke University, 39106 Magdeburg, Germany; (C.B.); (M.S.)
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10
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Arra A, Pech M, Fu H, Lingel H, Braun F, Beyer C, Spiliopoulou M, Bröker BM, Lampe K, Arens C, Vogel K, Pierau M, Brunner-Weinzierl MC. Immune-checkpoint blockade of CTLA-4 (CD152) in antigen-specific human T-cell responses differs profoundly between neonates, children, and adults. Oncoimmunology 2021; 10:1938475. [PMID: 34178430 PMCID: PMC8204976 DOI: 10.1080/2162402x.2021.1938475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The monoclonal antibody against CTLA-4, Ipilimumab, is a first-in-class immune-checkpoint inhibitor approved for treatment of advanced melanoma in adults but not extensively studied in children. In light of the fact that the immune response early in life differs from that of adults, we have applied a human in vitro model stimulating CD4+ T-cells from neonates, children (1–5 years), and adults antigen-specifically with Staphylococcus aureus (S. aureus) for assessment of CTLA-4 blockade early in life. We show that T-cell proliferation as well as frequencies of antigen-specific T-cells (CD40L+CD4+) were enhanced in neonatal T-cells upon CTLA-4 blockade showing a larger variance within the group (F-test p < .0001). Using machine learning algorithm Random Forest, adult and neonatal T-cell responses can be unambiguously categorized (F1 score-0.75) on the basis of their cytokine (co-)expression. Blockade of CTLA-4 enhanced frequencies of IL-8, IFNγ, and IL-10 producers among CD40L+ T-cells. Of note, antigen-specific T-cells from neonates displayed higher cytokine coproduction at baseline, while T-cells from children caught up to neonates, and adults to baseline of children upon CTLA-4 blockade. These findings reveal that in neonatal T-cells blockade of CTLA-4 mainly unleashes the antigen-specific capacity by increasing the numbers of responding T-cells, whereas in children and adults it promotes the coexpression of cytokines by individual T-cells. Thus, CTLA-4 blockade boosts antitumor immunity through different mechanisms depending on the patients’ age. These data implicate a strong impact of the developmental stage of the T-cell compartment on the effects of immune-checkpoint therapy.
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Affiliation(s)
- Aditya Arra
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Maximilian Pech
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Hang Fu
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Holger Lingel
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Franziska Braun
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Christian Beyer
- Department of Informatics, Otto-von-Guericke-University, Magdeburg, Germany
| | - Myra Spiliopoulou
- Department of Informatics, Otto-von-Guericke-University, Magdeburg, Germany
| | - Barbara M Bröker
- Department of Immunology, Institute of Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Karen Lampe
- Department of Otorhinolaryngology, Head and Neck Surgery, Otto-von-Guericke-University, Magdeburg, Germany
| | - Christoph Arens
- Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany.,Department of Otorhinolaryngology, Head and Neck Surgery, Otto-von-Guericke-University, Magdeburg, Germany
| | - Katrin Vogel
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Mandy Pierau
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Monika C Brunner-Weinzierl
- Department of Experimental Pediatrics and Neonatology, Otto-von-Guericke-University, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
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11
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Vogel K, Chekhonin P, Kaden C, Hernández-Mayoral M, Akhmadaliev S, Bergner F. Depth distribution of irradiation-induced dislocation loops in an Fe-9Cr model alloy irradiated with Fe ions: The effect of ion energy. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.101007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2022]
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12
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Dommisch H, Stolte KN, Jager J, Vogel K, Müller R, Hedtrich S, Unbehauen M, Haag R, Danker K. Characterization of an ester-based core-multishell (CMS) nanocarrier for the topical application at the oral mucosa. Clin Oral Investig 2021; 25:5795-5805. [PMID: 33821321 PMCID: PMC8443517 DOI: 10.1007/s00784-021-03884-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 03/11/2021] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Topical drug administration is commonly applied to control oral inflammation. However, it requires sufficient drug adherence and a high degree of bioavailability. Here, we tested the hypothesis whether an ester-based core-multishell (CMS) nanocarrier is a suitable nontoxic drug-delivery system that penetrates efficiently to oral mucosal tissues, and thereby, increase the bioavailability of topically applied drugs. MATERIAL AND METHODS To evaluate adhesion and penetration, the fluorescence-labeled CMS 10-E-15-350 nanocarrier was applied to ex vivo porcine masticatory and lining mucosa in a Franz cell diffusion assay and to an in vitro 3D model. In gingival epithelial cells, potential cytotoxicity and proliferative effects of the nanocarrier were determined by MTT and sulphorhodamine B assays, respectively. Transepithelial electrical resistance (TEER) was measured in presence and absence of CMS 10-E-15-350 using an Endohm-12 chamber and a volt-ohm-meter. Cellular nanocarrier uptake was analyzed by laser scanning microscopy. Inflammatory responses were determined by monitoring pro-inflammatory cytokines using real-time PCR and ELISA. RESULTS CMS nanocarrier adhered to mucosal tissues within 5 min in an in vitro model and in ex vivo porcine tissues. The CMS nanocarrier exhibited no cytotoxic effects and induced no inflammatory responses. Furthermore, the physical barrier expressed by the TEER remained unaffected by the nanocarrier. CONCLUSIONS CMS 10-E-15-350 adhered to the oral mucosa and adhesion increased over time which is a prerequisite for an efficient drug release. Since TEER is unaffected, CMS nanocarrier may enter the oral mucosa transcellularly. CLINICAL RELEVANCE Nanocarrier technology is a novel and innovative approach for efficient topical drug delivery at the oral mucosa.
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Affiliation(s)
- H Dommisch
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany. .,Department of Periodontology, University of Washington, Seattle, WA, USA.
| | - K N Stolte
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany
| | - J Jager
- Institute for Biochemistry, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117, Berlin, Germany
| | - K Vogel
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany
| | - R Müller
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany
| | - S Hedtrich
- Pharmacology and Toxicology, Institute of Pharmacy, Freie Universität Berlin, 14195, Berlin, Germany.,Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, V6T1Z3, Canada
| | - M Unbehauen
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - R Haag
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - K Danker
- Institute for Biochemistry, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117, Berlin, Germany
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Jehna M, Wurm W, Pinter D, Vogel K, Holl A, Hofmann P, Ebner C, Ropele S, Fuchs G, Kapfhammer HP, Deutschmann H, Enzinger C. Do increases in deep grey matter volumes after electroconvulsive therapy persist in patients with major depression? A longitudinal MRI-study. J Affect Disord 2021; 281:908-917. [PMID: 33279261 DOI: 10.1016/j.jad.2020.11.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/30/2020] [Accepted: 11/07/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Previous MRI studies reported deep grey matter volume increases after electroconvulsive therapy (ECT) in patients with major depressive disorder (MDD). However, the clinical correlates of these changes are still unclear. It remains debated whether such volume changes are transient, and if they correlate with affective changes over time. We here investigated if ECT induces deep grey matter volume increases in MDD-patients; and, if so, whether volume changes persist over more than 9 months and whether they are related to the clinical outcome. METHODS We examined 16 MDD-patients with 3Tesla MRI before (baseline) and after an ECT-series and followed 12 of them up for 10-36 months. Patients' data were compared to 16 healthy controls. Affective scales were used to investigate the relationship between therapy-outcome and MRI changes. RESULTS At baseline, MDD-patients had lower values in global brain volume, white matter and peripheral grey matter compared to healthy controls, but we observed no significant differences in deep grey matter volumes. After ECT, the differences in peripheral grey matter disappeared, and patients demonstrated significant volume increases in the right hippocampus and both thalami, followed by subsequent decreases after 10-36 months, especially in ECT-responders. Controls did not show significant changes over time. LIMITATIONS Beside the relatively small, yet carefully characterized cohort, we address the variability in time between the third scanning session and the baseline. CONCLUSIONS ECT-induced deep grey matter volume increases are transient. Our results suggest that the thalamus might be a key region for the understanding of the mechanisms of ECT action.
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Affiliation(s)
- Margit Jehna
- Department of Radiology, Division of Neuroradiology, Vascular and Interventional Radiology, 8036 Graz, Medical University of Graz, Austria
| | - Walter Wurm
- Department of Psychiatry and Psychotherapeutic Medicine, 8036 Graz, Medical University of Graz, Austria
| | - Daniela Pinter
- Department of Neurology, Division of General Neurology, 8036 Graz, Medical University of Graz, Austria; Research Unit for Neuronal Repair and Plasticity, 8036 Graz, Medical University of Graz, Austria
| | - Katrin Vogel
- Department of Psychiatry and Psychotherapeutic Medicine, 8036 Graz, Medical University of Graz, Austria
| | - Anna Holl
- Department of Psychiatry and Psychotherapeutic Medicine, 8036 Graz, Medical University of Graz, Austria
| | - Peter Hofmann
- Department of Psychiatry and Psychotherapeutic Medicine, 8036 Graz, Medical University of Graz, Austria
| | - Christoph Ebner
- Department of Psychiatry and Psychotherapeutic Medicine, 8036 Graz, Medical University of Graz, Austria
| | - Stefan Ropele
- Department of Neurology, Division of General Neurology, 8036 Graz, Medical University of Graz, Austria
| | - Gottfried Fuchs
- Department of Anesthesiology and Intensive Care Medicine, Division of Special Anesthesiology, Pain and Intensive Care Medicine, 8036 Graz, Medical University of Graz, Austria
| | - Hans-Peter Kapfhammer
- Department of Psychiatry and Psychotherapeutic Medicine, 8036 Graz, Medical University of Graz, Austria
| | - Hannes Deutschmann
- Department of Radiology, Division of Neuroradiology, Vascular and Interventional Radiology, 8036 Graz, Medical University of Graz, Austria
| | - Christian Enzinger
- Department of Radiology, Division of Neuroradiology, Vascular and Interventional Radiology, 8036 Graz, Medical University of Graz, Austria; Department of Neurology, Division of General Neurology, 8036 Graz, Medical University of Graz, Austria; Research Unit for Neuronal Repair and Plasticity, 8036 Graz, Medical University of Graz, Austria.
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Vogel K, Heintze C, Chekhonin P, Akhmadaliev S, Altstadt E, Bergner F. Relationships between depth-resolved primary radiation damage, irradiation-induced nanostructure and nanoindentation response of ion-irradiated Fe-Cr and ODS Fe-Cr alloys. Nuclear Materials and Energy 2020. [DOI: 10.1016/j.nme.2020.100759] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pierau M, Lingel H, Vogel K, Arra A, Brunner‐Weinzierl MC. CTLA-4-competent conventional T cells back up regulatory T cells to restrain memory T-helper type 2 cell responses. Allergy 2020; 75:684-687. [PMID: 31505050 DOI: 10.1111/all.14042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mandy Pierau
- Department of Pediatrics Otto‐von‐Guericke‐University Magdeburg Germany
- Health Campus Immunology, Infectiology and Inflammation Otto‐von‐Guericke‐University Magdeburg Germany
| | - Holger Lingel
- Department of Pediatrics Otto‐von‐Guericke‐University Magdeburg Germany
- Health Campus Immunology, Infectiology and Inflammation Otto‐von‐Guericke‐University Magdeburg Germany
| | - Katrin Vogel
- Department of Pediatrics Otto‐von‐Guericke‐University Magdeburg Germany
- Health Campus Immunology, Infectiology and Inflammation Otto‐von‐Guericke‐University Magdeburg Germany
| | - Aditya Arra
- Department of Pediatrics Otto‐von‐Guericke‐University Magdeburg Germany
- Health Campus Immunology, Infectiology and Inflammation Otto‐von‐Guericke‐University Magdeburg Germany
| | - Monika C. Brunner‐Weinzierl
- Department of Pediatrics Otto‐von‐Guericke‐University Magdeburg Germany
- Health Campus Immunology, Infectiology and Inflammation Otto‐von‐Guericke‐University Magdeburg Germany
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Asmus A, Vogel K, Vogel A, Eichenauer F, Kim S, Eisenschenk A. [Pedicled vascularized iliac bone graft for treatment of osteonecrosis of the femoral head]. Oper Orthop Traumatol 2020; 32:127-138. [PMID: 32052100 DOI: 10.1007/s00064-020-00650-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/29/2019] [Accepted: 10/09/2019] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Illustration of a nowadays only rarely performed operative procedure for the treatment of osteonecrosis of the femoral head to prevent or at least delay advanced arthrosis and the need for a total hip replacement. The pedicled vascularized iliac bone graft is raised without the need for special microsurgical techniques and has less vascular complications often seen in free vascularized grafts. INDICATIONS Early stages of osteonecrosis of the femoral head stages II and III according to the Association Research Circulation Osseous (ARCO) up to the detection of fracture lines (crescent sign) but without mechanical insufficiency. CONTRAINDICATIONS Osteonecrosis of the femoral head with collapse of the femoral head (ARCO stage ≥IIIB) and mechanical insufficiency. Patients who are noncompliant or a not able to take the weight off the operated leg. Patients who had radiotherapy or an operation on ipsilateral inguinal lymph nodes and patients who have vascular anomalies or severe arteriosclerosis. SURGICAL TECHNIQUE Debridement of the femoral head osteonecrosis and implantation of a pedicled vascularized iliac bone graft. POSTOPERATIVE MANAGEMENT Free movement of the hip joint 4 weeks after surgery. Outward rotation of the hip joint allowed after 3 months and restriction of weight load on the operated leg for at least 3-6 months postoperatively depending on the bony consolidation. RESULTS Vascularized bone grafts for the treatment of femoral head necrosis show better clinical and radiological results than avascular bone grafts. Nevertheless, after 5 years follow-up approximately 25% of the operated hips formerly in stage II show further progression of radiological necrosis. In stage III all hips eventually show progress of femoral head collapse and the need of a total hip replacement. Concerning the outcome of a free vascularized bone graft (fibula flap) compared to the pedicled vascularized graft from the iliac crest for treatment, the anatomically demanding area and a higher complication rate should be considered even though the cancellous bone of the iliac crest is biologically ideal. Nowadays a free vascularized fibular graft is the most frequently used bone graft for treatment of femoral head necrosis.
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Affiliation(s)
- A Asmus
- Abteilung für Hand‑, Replantations- und Mikrochirurgie, Unfallkrankenhaus Berlin, Warener Straße 7, 12683, Berlin, Deutschland.
| | - K Vogel
- Abteilung für Hand‑, Replantations- und Mikrochirurgie, Unfallkrankenhaus Berlin, Warener Straße 7, 12683, Berlin, Deutschland
- Hand- und funktionelle Mikrochirurgie, Universitätsmedizin Greifswald, Greifswald, Deutschland
| | - A Vogel
- Abteilung für Hand‑, Replantations- und Mikrochirurgie, Unfallkrankenhaus Berlin, Warener Straße 7, 12683, Berlin, Deutschland
- Hand- und funktionelle Mikrochirurgie, Universitätsmedizin Greifswald, Greifswald, Deutschland
| | - F Eichenauer
- Abteilung für Hand‑, Replantations- und Mikrochirurgie, Unfallkrankenhaus Berlin, Warener Straße 7, 12683, Berlin, Deutschland
| | - S Kim
- Hand- und funktionelle Mikrochirurgie, Universitätsmedizin Greifswald, Greifswald, Deutschland
| | - A Eisenschenk
- Hand- und funktionelle Mikrochirurgie, Universitätsmedizin Greifswald, Greifswald, Deutschland
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Dietz A, Wichmann G, Kuhnt T, Pfreundner L, Hagen R, Scheich M, Kölbl O, Hautmann MG, Strutz J, Schreiber F, Bockmühl U, Schilling V, Feyer P, de Wit M, Maschmeyer G, Jungehülsing M, Schroeder U, Wollenberg B, Sittel C, Münter M, Lenarz T, Klussmann JP, Guntinas-Lichius O, Rudack C, Eich HT, Foerg T, Preyer S, Westhofen M, Welkoborsky HJ, Esser D, Thurnher D, Remmert S, Sudhoff H, Görner M, Bünzel J, Budach V, Held S, Knödler M, Lordick F, Wiegand S, Vogel K, Boehm A, Flentje M, Keilholz U. Induction chemotherapy (IC) followed by radiotherapy (RT) versus cetuximab plus IC and RT in advanced laryngeal/hypopharyngeal cancer resectable only by total laryngectomy-final results of the larynx organ preservation trial DeLOS-II. Ann Oncol 2019; 29:2105-2114. [PMID: 30412221 DOI: 10.1093/annonc/mdy332] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background The German multicenter randomized phase II larynx organ preservation (LOP) trial DeLOS-II was carried out to prove the hypothesis that cetuximab (E) added to induction chemotherapy (IC) and radiotherapy improves laryngectomy-free survival (LFS; survival with preserved larynx) in locally advanced laryngeal/hypopharyngeal cancer (LHSCC). Patients and methods Treatment-naïve patients with stage III/IV LHSCC amenable to total laryngectomy (TL) were randomized to three cycles IC with TPF [docetaxel (T) and cisplatin (P) 75 mg/m2/day 1, 5-FU (F) 750 mg/m2/day days 1-5] followed by radiotherapy (69.6 Gy) without (A) or with (B) standard dose cetuximab for 16 weeks throughout IC and radiotherapy (TPFE). Response to first IC-cycle (IC-1) with ≥30% endoscopically estimated tumor surface shrinkage (ETSS) was used to define early responders; early salvage TL was recommended to non-responders. The primary objective was 24 months LFS above 35% in arm B. Results Of 180 patients randomized (July 2007 to September 2012), 173 fulfilled eligibility criteria (A/B: larynx 44/42, hypopharynx 41/46). Because of 4 therapy-related deaths among the first 64 randomized patients, 5-FU was omitted from IC in the subsequent 112 patients reducing further fatal toxicities. Thus, IC was TPF in 61 patients and TP in 112 patients, respectively. The primary objective (24 months LFS above 35%) was equally met by arms A (40/85, 47.1%) as well as B (41/88, 46.6%). One hundred and twenty-three early responders completed IC+RT; their overall response rates (TPF/TP) were 94.7%/87.2% in A versus 80%/86.0% in B. The 24 months overall survival (OS) rates were 68.2% and 69.3%. Conclusions Despite being accompanied by an elevated frequency in adverse events, the IC with TPF/TP plus cetuximab was feasible but showed no superiority to IC with TPF/TP regarding LFS and OS at 24 months. Both early response and 24 months LFS compare very well to previous LOP trials and recommend effective treatment selection and stratification by ETSS. Clinical trial information NCT00508664.
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Affiliation(s)
- A Dietz
- Department of Otolaryngology, Head and Neck Surgery, University Leipzig, Leipzig, Germany.
| | - G Wichmann
- Department of Otolaryngology, Head and Neck Surgery, University Leipzig, Leipzig, Germany
| | - T Kuhnt
- Department of Radiation Oncology, University Leipzig, Leipzig, Germany
| | - L Pfreundner
- Department of Radiation Oncology, University Würzburg, Würzburg, Germany
| | - R Hagen
- Department of Otolaryngology, Head and Neck Surgery, University Würzburg, Würzburg, Germany
| | - M Scheich
- Department of Otolaryngology, Head and Neck Surgery, University Würzburg, Würzburg, Germany
| | - O Kölbl
- Department of Radiation Oncology, University Regensburg, Regensburg, Germany
| | - M G Hautmann
- Department of Radiation Oncology, University Regensburg, Regensburg, Germany
| | - J Strutz
- Department of Otolaryngology, Head and Neck Surgery, University Regensburg, Regensburg, Germany
| | - F Schreiber
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Kassel, Kassel, Germany
| | - U Bockmühl
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Kassel, Kassel, Germany
| | - V Schilling
- Department of Otolaryngology, Head and Neck Surgery, Vivantes, Berlin, Neukölln, Germany
| | - P Feyer
- Department of Radiation Oncology, Vivantes, Berlin, Neukölln, Germany
| | - M de Wit
- Department of Hemato-Oncology, Vivantes, Berlin, Neukölln, Germany
| | - G Maschmeyer
- Department of Hematology, Oncology and Palliative Care, Klinikum Ernst von Bergmann, Potsdam, Germany
| | - M Jungehülsing
- Department of Otolaryngology, Head and Neck Surgery, Potsdam Klinikum, Potsdam, Germany
| | - U Schroeder
- Department of Otolaryngology, Head and Neck Surgery, University Lübeck, Lübeck, Germany
| | - B Wollenberg
- Department of Otolaryngology, Head and Neck Surgery, University Lübeck, Lübeck, Germany
| | - C Sittel
- Department of Otolaryngology, Head and Neck Surgery, Katharinen Hospital, Stuttgart, Germany
| | - M Münter
- Department of Radiation Oncology, Katharinen Hospital, Stuttgart, Germany
| | - T Lenarz
- Department of Otolaryngology, Head and Neck Surgery, MHH Hannover, Hannover, Germany
| | - J P Klussmann
- Department of Otolaryngology, Head and Neck Surgery, University Gießen, Gießen, Germany
| | - O Guntinas-Lichius
- Department of Otolaryngology, Head and Neck Surgery, Jena University Hospital, Jena, Germany
| | - C Rudack
- Department of Otolaryngology, Head and Neck Surgery, University Münster, Münster, Germany
| | - H T Eich
- Department of Radiation Oncology, University Münster, Münster, Germany
| | - T Foerg
- Department of Radiation Oncology, Head and Neck Surgery, St. Vincentius, ViDia Christliche Kliniken Karlsruhe, Karlsruhe, Germany
| | - S Preyer
- Department of Otolaryngology, Head and Neck Surgery, St. Vincentius, ViDia Christliche Kliniken Karlsruhe, Karlsruhe, Germany
| | - M Westhofen
- Department of Otolaryngology, Head and Neck Surgery, University Aachen, Aachen, Germany
| | - H J Welkoborsky
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Nordstadt, Hannover, Germany
| | - D Esser
- Department of Otolaryngology, Head and Neck Surgery, Helios Klinikum, Erfurt, Germany
| | - D Thurnher
- Department of Otolaryngology, Head and Neck Surgery, University Graz, Graz, Austria
| | - S Remmert
- Department of Otolaryngology, Head and Neck Surgery, Malteser Hospital Duisburg, Duisburg, Germany
| | - H Sudhoff
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Bielefeld, Bielefeld, Germany
| | - M Görner
- Department of Hemato-Oncology, Klinikum Bielefeld, Bielefeld, Germany
| | - J Bünzel
- Department of Otolaryngology, Head and Neck Surgery, Klinikum Nordhausen, Nordhausen, Germany
| | - V Budach
- Department of Radiation Oncology, CCC, Charité-University Medicine, Berlin, Germany
| | - S Held
- ClinAssess GmbH, Leverkusen, Germany
| | - M Knödler
- Department of Oncology, University Cancer Center Leipzig (UCCL), Leipzig, Germany
| | - F Lordick
- Department of Oncology, University Cancer Center Leipzig (UCCL), Leipzig, Germany
| | - S Wiegand
- Department of Otolaryngology, Head and Neck Surgery, University Leipzig, Leipzig, Germany
| | - K Vogel
- Department of Otolaryngology, Head and Neck Surgery, University Leipzig, Leipzig, Germany
| | - A Boehm
- Department of Otolaryngology, Head and Neck Surgery, St. Georg Hospital Leipzig, Leipzig, Germany
| | - M Flentje
- Department of Radiation Oncology, University Würzburg, Würzburg, Germany
| | - U Keilholz
- Charité Comprehensive Cancer Center, Berlin, Germany
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Schnick U, Dähne F, Tittel A, Vogel K, Vogel A, Eisenschenk A, Ekkernkamp A, Böttcher R. Traumatische Läsionen des Plexus brachialis. Unfallchirurg 2018; 121:483-496. [DOI: 10.1007/s00113-018-0506-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Juneau D, Marangou J, Beaulé P, Alzahrani A, Grammatopoulos G, Thornhill R, Inacio J, Kim J, Vogel K, Dobransky J, Dick A, Dwivedi G. Myocardial Structure, Function, and Tissue Characterisation by Cardiac Magnetic Resonance in Asymptomatic Patients with Metal on Metal Hip Resurfacing. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.481] [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: 10/28/2022]
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20
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Wagner DR, Kline HC, Martin MS, Vogel K, Alexander L, Grandin T. 020 Cattle breed and head dimension effects on the performance of a captive bolt stunner equipped with three different length bolts. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Karltun J, Vogel K, Bergstrand M, Eklund J. Maintaining knife sharpness in industrial meat cutting: A matter of knife or meat cutter ability. Appl Ergon 2016; 56:92-100. [PMID: 27184316 DOI: 10.1016/j.apergo.2016.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 03/18/2016] [Accepted: 03/20/2016] [Indexed: 06/05/2023]
Abstract
Knife sharpness is imperative in meat cutting. The aim of this study was to compare the impact of knife blade steel quality with meat cutters' individual ability to maintain the cutting edge sharp in an industrial production setting. Twelve meat cutters in two different companies using three different knives during normal production were studied in this quasi-experimental study. Methods included were measuring knife cutting force before and after knife use, time knives were used, ratings of sharpness and discomfort and interviews. Results showed that the meat cutters' skill of maintaining sharpness during work had a much larger effect on knife sharpness during work than the knife steel differences. The ability was also related to feelings of discomfort and to physical exertion. It was found that meat cutters using more knives were more likely to suffer from discomfort in the upper limbs, which is a risk for developing MSD.
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Affiliation(s)
- J Karltun
- School of Engineering, Jönköping University, P.O Box 1026, SE-551 11 Jönköping, Sweden.
| | - K Vogel
- KTH Royal Institute of Technology, STH, Unit of Ergonomics, Alfred Nobels allé 10, SE-141 52 Huddinge, Sweden.
| | - M Bergstrand
- Avonova Hälsa, Repslagaregatan 4, SE-591 30 Motala, Sweden.
| | - J Eklund
- KTH Royal Institute of Technology, STH, Unit of Ergonomics, Alfred Nobels allé 10, SE-141 52 Huddinge, Sweden.
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Schoenau V, Vogel K, Engelbrecht M, Schmidt D, Kuwert T, Manger B, Schett G. OP0265 Fever of Unknown Origin (FUO) and Inflammation of Unknown Origin (IUO): Is 18F-FDG-PET/CT A Useful First Line Diagnostic Strategy?:. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Baier F, Keller A, Munger A, Vogel K. 008 Development of acclimation to reduce flooring novelty in nursery pigs. J Anim Sci 2016. [DOI: 10.2527/msasas2016-008] [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: 11/13/2022] Open
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Keller A, Lemmer B, Getty S, Post B, Nickel M, Baier F, Wagner D, Vogel K. 001 Evaluation of the behavioral differences between physically and immunologically castrated male pigs. J Anim Sci 2016. [DOI: 10.2527/msasas2016-001] [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: 11/13/2022] Open
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Vogel K, LaRoche K, El-Haddad J, Foster A. Perspectives of Canadian women on mifepristone: results of a national qualitative study. Contraception 2015. [DOI: 10.1016/j.contraception.2015.06.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Meyer R, Faesen A, Vogel K, Jeganathan S, Musacchio A, Niemeyer CM. DNA-Directed Assembly of Capture Tools for Constitutional Studies of Large Protein Complexes. Small 2015; 11:2669-2674. [PMID: 25649737 DOI: 10.1002/smll.201403544] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 01/11/2015] [Indexed: 06/04/2023]
Abstract
Large supramolecular protein complexes, such as the molecular machinery involved in gene regulation, cell signaling, or cell division, are key in all fundamental processes of life. Detailed elucidation of structure and dynamics of such complexes can be achieved by reverse-engineering parts of the complexes in order to probe their interactions with distinctive binding partners in vitro. The exploitation of DNA nanostructures to mimic partially assembled supramolecular protein complexes in which the presence and state of two or more proteins are decisive for binding of additional building blocks is reported here. To this end, four-way DNA Holliday junction motifs bearing a fluorescein and a biotin tag, for tracking and affinity capture, respectively, are site-specifically functionalized with centromeric protein (CENP) C and CENP-T. The latter serves as baits for binding of the so-called KMN component, thereby mimicking early stages of the assembly of kinetochores, structures that mediate and control the attachment of microtubules to chromosomes in the spindle apparatus. Results from pull-down experiments are consistent with the hypothesis that CENP-C and CENP-T may bind cooperatively to the KMN network.
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Affiliation(s)
- Rebecca Meyer
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces (IBG 1), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
| | - Alex Faesen
- Max-Planck Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227, Dortmund, Germany
| | - Katrin Vogel
- TU Dortmund, Fakultät für Chemie und Chemische Biologie, Biologisch-Chemische Mikrostrukturtechnik, Otto-Hahn Str. 6, 44227, Dortmund, Germany
| | - Sadasivam Jeganathan
- Max-Planck Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227, Dortmund, Germany
| | - Andrea Musacchio
- Max-Planck Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227, Dortmund, Germany
- Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitätsstrasse 5, 45141, Essen, Germany
| | - Christof M Niemeyer
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces (IBG 1), Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany
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Vogel K, Karltun J, Yeow PHP, Eklund J. Increased work pace is unprofitable: a beef-cutting case study. Meat Sci 2015; 105:81-8. [PMID: 25828161 DOI: 10.1016/j.meatsci.2015.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 03/05/2015] [Accepted: 03/09/2015] [Indexed: 11/18/2022]
Abstract
The beef industry worldwide is showing a trend towards increased cutting pace aimed at higher profits. However, prior research in the duck meat industry suggested that a higher cutting pace reduced quality and yield, leading to losses. This study aimed to test this hypothesis by investigating the effects of varying beef-cutting paces on yield, quality and economy. A field experiment was conducted on six workers cutting beef fillet, sirloin and entrecôte. Three types of paces were sequentially tested: Baseline (i.e., status quo), 'Quantity focus' (i.e., pace required to maximise quantity) and 'Quality focus' (i.e., pace required to minimise errors). The results showed a significant drop in yield, increased rate of quality deficiency and economic losses with the change to 'Quantity focus' (from Baseline and 'Quality focus') for all meat types. Workers supported these results and also added health problems to the list. The results confirmed that an increased cutting pace is unprofitable.
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Affiliation(s)
- K Vogel
- KTH Royal Institute of Technology, STH, Unit of Ergonomics, Alfred Nobels allé 10, SE-141 52 Huddinge, Sweden.
| | - J Karltun
- School of Engineering, Jönköping University, P.O. Box 1026, SE-551 11 Jönköping, Sweden.
| | - P H P Yeow
- School of Business, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Petaling Jaya 46150, Selangor, Malaysia.
| | - J Eklund
- KTH Royal Institute of Technology, STH, Unit of Ergonomics, Alfred Nobels allé 10, SE-141 52 Huddinge, Sweden.
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Unger K, Vogel K, Kohlschütter HW. Chromatographische Fraktionierung und Trennung von Polystyrolen an Silicagel. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1967-0104] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Silica gel as a filler of separation columns fractionates and separates dissolved polystyrenes. Fractionation means: Continuous distribution of the polymeric homologues among the successive fractions of the eluate. Separation means: Discontinuous distribution. In both cases the polymeric homologues with higher molecular weights are transported more rapidly through the columns than the polymeric homologues with lower molecular weigths. Fractionation and separation of polystyrenes are based on characteristics of the space system within the silica gel particles. With equal dimensions of the columns fractionation and separation grow with the pore size of the silica gel particles.
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Affiliation(s)
- K. Unger
- Eduard-Zintl-Institut für anorganische und physikalische Chemie der Technischen Hochschule Darmstadt
| | - K. Vogel
- Eduard-Zintl-Institut für anorganische und physikalische Chemie der Technischen Hochschule Darmstadt
| | - H. W. Kohlschütter
- Eduard-Zintl-Institut für anorganische und physikalische Chemie der Technischen Hochschule Darmstadt
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Vogel K, Karltun J, Eklund J, Engkvist IL. Improving meat cutters' work: changes and effects following an intervention. Appl Ergon 2013; 44:996-1003. [PMID: 23647887 DOI: 10.1016/j.apergo.2013.03.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 01/17/2013] [Accepted: 03/21/2013] [Indexed: 06/02/2023]
Abstract
Meat cutters face higher risks of injury and musculoskeletal problems than most other occupational groups. The aims of this paper were to describe ergonomics changes implemented in three meat cutting plants and to evaluate effects related to ergonomics on the individual meat cutters and their work. Data was collected by interviews, observations, document studies and a questionnaire (n = 247), as a post intervention study. The changes implemented consisted of reducing knife work to a maximum of 6 h per day and introducing a job rotation scheme with work periods of equal length. Tasks other than traditional meat cutting were added. A competence development plan for each meat cutter and easy adjustment of workplace height were introduced. The questionnaire showed a reduction in perceived physical work load. In general, the changes were perceived positively. Figures from the company showed a positive trend for injuries and sick leave.
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Affiliation(s)
- K Vogel
- KTH Royal Institute of Technology, STH, Unit of Ergonomics, Alfred Nobels allé 10, SE-141 52 Huddinge, Sweden.
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Vogel K, Opfermann T, Wiegand S, Biermann J, Busch M, Winkens T, Freesmeyer M. Relationship between estimated glomerular filtration rate and biological half-life of 131I. Retrospective analysis in patients with differentiated thyroid carcinoma. Nuklearmedizin 2013; 52:164-9. [PMID: 23821288 DOI: 10.3413/nukmed-0575-13-03] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 06/19/2013] [Indexed: 11/20/2022]
Abstract
AIM This retrospective study sought to investigate the relationship between biological half-life (t1/2 biol) of 131I and estimated glomerular filtration rate (eGFR) in patients with thyroid carcinoma. PATIENTS, METHODS 96 patients with differentiated thyroid carcinoma (69 women, 27 men, mean age 64.0 ± 13.6 years) and diagnostic and therapeutic administration of 131I were considered. Patients with pronounced specific iodine storage were not included in the study. The eGFR was estimated according to the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula, the t1/2 biol via dosimetry. Patients were subdivided in groups with normal clearance (NC) (n = 37, 38.5%), medium clearance (MC) (n = 48, 50.0%), and low clearance (LC) (n = 11, 11.5%) (eGFR ≥ 90; 60-89; 15-59 ml/min per 1.73 m2, respectively). The relationship between eGFR and t1/2 biol of 131I was modeled using a power function. RESULTS The groups significantly differed in terms of age (NC 53.8, MC 68.6, and 78.0 years, respectively), serum creatinine levels (NC: 0.71; MC: 0.85; LC: 1.18 mg/dl), and t1/2 biol (NC: 0.53; MC: 0.71; LC: 1.01 days). The t1/2 biol was significantly influenced only by eGFR, and not by age, gender, or body weight. The relationship between t1/2 biol of 131I and eGFR was described by the formula t1/2 biol = 20.3 · eGFR-0.782. CONCLUSIONS The calculated relationship between renal function and t1/2 biol of 131I can be used in principle to estimate a dose reduction for patients with renal insufficiency. The model, however, gives erroneous results in individual cases and therefore a routine utilization cannot be recommended. Prospective studies are necessary, based on larger patient numbers and more accurate methods for dose rate measurement and GFR.
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Affiliation(s)
- K Vogel
- Martin Freesmeyer, Clinic of Nuclear Medicine, Jena University Hospital, Bachstr. 18, 07743 Jena, Germany, Tel. +49/(0)36 41/93 32 20, Fax +49/(0)36 41/93 32 44, E-mail:
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Abstract
A novel bioorthogonal method for the modification of cells with single-stranded DNA oligomers is compared to five alternative methods with respect to labeling efficacy, specificity, and effects on cell viability. The new method is based on oxime ligation of aminooxybiotin to aldehyde groups installed by periodate cleavage of cell-surface glycans, followed by the coupling of preformed DNA-streptavidin conjugates. As compared with two literature-reported methods based on direct coupling of N-hydroxysuccinimidyl (NHS)-DNA or NHS-biotinylation as well as with techniques based on strain-promoted alkyne-azide cycloaddition, this method shows the highest labeling densities and is sufficiently mild to avoid cell damage. Functionality of the DNA tags is demonstrated by DNA-directed immobilization on solid substrates and assembly of small cell aggregates.
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Affiliation(s)
- Katrin Vogel
- Technische Universität Dortmund, Fakultät Chemie, Biologisch-Chemische Mikrostrukturtechnik, Dortmund, Germany
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Vogel K, Opfermann T, Wiegand S, Biermann J, Busch M, Winkens T, Freesmeyer M. Relationship between estimated glomerular filtration rate and biological half-life of 131I. Nuklearmedizin 2013. [DOI: 10.1055/s-0038-1625739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Summary
Aim: This retrospective study sought to investigate the relationship between biological half-life (t
1/2 biol
) of 131I and estimated glomerular filtration rate (eGFR) in patients with thyroid carcinoma. Patients, methods: 96 patients with differentiated thyroid carcinoma (69 women, 27 men, mean age 64.0 ± 13.6 years) and diagnostic and therapeutic administration of 131I were considered. Patients with pronounced specific iodine storage were not included in the study. The eGFR was estimated according to the Chronic Kidney Disease Epidemiology Collaboration (CKDEPI) formula, the t
1/2 biol
via dosimetry. Patients were subdivided in groups with normal clearance (NC) (n = 37, 38.5%), medium clearance (MC) (n = 48, 50.0%), and low clearance (LC) (n = 11, 11.5%) (eGFR _ 90; 60-89; 15-59 ml/min per 1.73 m2, respectively). The relationship between eGFR and t
1/2 biol
of 131I was modeled using a power function. Results: The groups significantly differed in terms of age (NC 53.8, MC 68.6, and 78.0 years, respectively), serum creatinine levels (NC: 0.71; MC: 0.85; LC: 1.18 mg/dl), and t
1/2 biol
(NC: 0.53; MC: 0.71; LC: 1.01 days). The t
1/2 biol
was significantly influenced only by eGFR, and not by age, gender, or body weight. The relationship between t
1/2 biol
of 131I and eGFR was described by the formula t
1/2 biol
= 20.3 · eGFR−0.782. Conclusions: The calculated relationship between renal function and t
1/2 biol
of 131I can be used in principle to estimate a dose reduction for patients with renal insufficiency. The model, however, gives erroneous results in individual cases and therefore a routine utilization cannot be recommended. Prospective studies are necessary, based on larger patient numbers and more accurate methods for dose rate measurement and GFR.
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von Haaren C, Kempa D, Vogel K, Rüter S. Assessing biodiversity on the farm scale as basis for ecosystem service payments. J Environ Manage 2012; 113:40-50. [PMID: 22996001 DOI: 10.1016/j.jenvman.2012.07.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 07/25/2012] [Accepted: 07/29/2012] [Indexed: 06/01/2023]
Abstract
Ecosystem services payments must be based on a standardised transparent assessment of the goods and services provided. This is especially relevant in the context of EU agri-environmental programs, but also for organic-food companies that foster environmental services on their contractor farms. Addressing the farm scale is important because land users/owners are major recipients of payments and they could be more involved in data generation and conservation management. A standardised system for measuring on-farm biodiversity does not yet exist that concentrates on performance indicators and includes farmers in generating information. A method is required that produces ordinal or metric scaled assessment results as well as management measures. Another requirement is the ease of application, which includes the ease of gathering input data and understandability. In order to respond to this need, we developed a method which is designed for automated application in an open source farm assessment system named MANUELA. The method produces an ordinal scale assessment of biodiversity that includes biotopes, species, biotope connectivity and the influence of land use. In addition, specific measures for biotope types are proposed. The open source geographical information system OpenJump is used for the implementation of MANUELA. The results of the trial applications and robustness tests show that the assessment can be implemented, for the most part, using existing information as well as data available from farmers or advisors. The results are more sensitive for showing on-farm achievements and changes than existing biotope-type classifications. Such a differentiated classification is needed as a basis for ecosystem service payments and for designing effective measures. The robustness of the results with respect to biotope connectivity is comparable to that of complex models, but it should be further improved. Interviews with the test farmers substantiate that the assessment methods can be implemented on farms and they are understood by farmers.
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Affiliation(s)
- Christina von Haaren
- Department of Environmental Planning, Leibniz University Hannover, Herrenhäuser Str 2, D 30419 Hannover, Germany.
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Wennekes T, Bonger KM, Vogel K, van den Berg RJBHN, Strijland A, Donker-Koopman WE, Aerts JMFG, van der Marel GA, Overkleeft HS. The Development of an Aza-C-Glycoside Library Based on a Tandem Staudinger/Aza-Wittig/Ugi Three-Component Reaction. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200923] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Vogel K. Supervisors in ergonomic change of meat cutting work. Work 2012; 41 Suppl 1:4850-5. [PMID: 22317469 DOI: 10.3233/wor-2012-0776-4850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Being a supervisor is an important and lonely occupation. The aim of this study was to identify barriers and opportunities in working conditions for supervisors, being facilitators and implementers of change for meat cutters. Nine supervisors of meat cutters in one large company were interviewed. The semi-structured interviews covered their roles as supervisors, performance of the change process and their own working conditions. Notes were taken and structured in themes. Similarities, differences, plus and minus were identified. There was a nuanced view on the change processes and their effects. The change processes and the decisions were anchored in a democratic process with groups of employees and the union. All were clear on what demands the company had on them. They were secure in a functioning network of peers and their immediate superior. On their own education, most were as a whole satisfied, but in need of more training and talked of lifelong learning. They considered their work demanding and lonely, with a need both to be manager and leader. A shared leadership could mean doing a better job. There is a need for education and training as a manager and leader as well as the opportunity to discuss with peers.
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Affiliation(s)
- K Vogel
- Department of Ergonomics, KTH Royal Institute of Technology, STH, Alfred Nobels Allé 10, SE-141 52 Huddinge, Sweden.
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Jardanhazi-Kurutz D, Kummer MP, Terwel D, Vogel K, Thiele A, Heneka MT. Distinct adrenergic system changes and neuroinflammation in response to induced locus ceruleus degeneration in APP/PS1 transgenic mice. Neuroscience 2010; 176:396-407. [PMID: 21129451 DOI: 10.1016/j.neuroscience.2010.11.052] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 11/23/2010] [Accepted: 11/24/2010] [Indexed: 02/07/2023]
Abstract
Degeneration of locus ceruleus (LC) neurons and subsequent reduction of norepinephrine (NE) in LC projection areas represent an early pathological indicator of Alzheimer's disease (AD). In order to study the effects of NE depletion on cortical and hippocampal adrenergic system changes, LC degeneration was induced in 3-month-old APP/PS1 mice by the neurotoxin N-(2-chloroethyl)-N-ethyl-bromo-benzylamine (dsp4). Dsp4 induced a widespread loss of norepinephrine transporter binding in multiple brain structures already at 4.5 months. This was accompanied by changes of α-1-, α-2-, and β-1-adreneroceptor binding sites as well as altered adrenoceptor mRNA expression. In parallel, we observed increased micro- and astrogliosis in cortical and hippocampal structures in dsp4-treated groups. In addition, the expression of the pro-inflammatory cytokines CCL2 and IL-1β were induced in both, dsp4-treated and APP/PS1-transgenic mice, whereas IL-1α was only up-regulated in dsp4-treated APP/PS1 mice. Concerning amyloid β (Aβ) deposition, we observed an elevation of Aβ1-42 levels in aged dsp4-treated APP/PS1 mice. These data support the hypothesis that LC degeneration leads to dysregulation of adrenergic receptors and exacerbation of Aβ-induced neuroinflammation, both of which are exploitable for early disease marker development.
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Affiliation(s)
- D Jardanhazi-Kurutz
- Global Drug Discovery, Bayer Schering Pharma AG, Berlin, Müllerstrasse 178, 13342 Berlin, Germany
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Murnane R, Zhang XB, Hukkanen RR, Vogel K, Kelley S, Kiem HP. Myelodysplasia in 2 pig-tailed macaques (Macaca nemestrina) associated with retroviral vector-mediated insertional mutagenesis and overexpression of HOXB4. Vet Pathol 2010; 48:999-1001. [PMID: 20870955 DOI: 10.1177/0300985810382673] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Gammaretroviral vectors are an efficient means to effect gene therapy. However, genotoxicity from insertion at nonrandom sites can confer a competitive advantage to transduced cells, resulting in clonal proliferation or neoplasia. Six pig-tailed macaques (Macaca nemestrina) underwent total body irradiation and reconstitution with autologous stem cells genetically modified by a gammaretroviral vector overexpressing HOXB4. Two animals were euthanized owing to irradiation- or transplantation-associated toxicity, whereas the other 4 had successful reconstitution. Of the 4 macaques with successful reconstitution, 1 has no long-term follow-up information; 1 was euthanized owing to infection with simian varicella virus infection 18 months post-total body irradiation; and the 2 others are described herein as case Nos. 1 and 2. After being stable for 3 years, case No. 1 developed pancytopenia and petechiation, and after 2 years of stability case No. 2 developed anemia and thrombocytopenia. Despite therapy, the animals deteriorated and were euthanized. Gross findings included emaciation; case No. 1 also had hemorrhage, peritonitis, and cholecystitis. Histologically, bone marrow was hypercellular with predominately blast cells of all hematopoietic lineages, though with myeloid predominance, and with maturation arrest and blast cell dysplasia (myelodysplasia). Myelodysplasia was likely from a combination of insertional mutagenesis by the retroviral vector and overexpression of HOXB4. Consequences of myelodysplasia included the blood dyscrasias and, in case No. 1, hemorrhage, bacterial cholecystitis, hepatitis, and peritonitis.
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Affiliation(s)
- R Murnane
- Washington National Primate Research Center, 3000 Western Avenue, Seattle, WA 98121, USA.
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40
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Nass N, Vogel K, Hofmann B, Presek P, Silber RE, Simm A. Glycation of PDGF results in decreased biological activity. Int J Biochem Cell Biol 2010; 42:749-54. [DOI: 10.1016/j.biocel.2010.01.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 12/28/2009] [Accepted: 01/10/2010] [Indexed: 11/17/2022]
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Vogel K. Eine einfache Vorrichtung zur Unterstützung der Bardenheuerschen Extensionsbehandlung der Frakturen. Dtsch Med Wochenschr 2009. [DOI: 10.1055/s-0029-1188853] [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]
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Affiliation(s)
- F. Zeuner
- a Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- b Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- c Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- d Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- e Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
| | - N. Moszner
- a Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- b Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- c Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- d Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- e Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
| | - T. Völkel
- a Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- b Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- c Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- d Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- e Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
| | - K. Vogel
- a Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- b Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- c Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- d Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- e Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
| | - V. Rheinberger
- a Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- b Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- c Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- d Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
- e Ivoclar AG, Research & Development , FL-9494 Schaan/Liechtenstein
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Turssi CP, Ferracane JL, Vogel K. Filler features and their effects on wear and degree of conversion of particulate dental resin composites. Biomaterials 2005; 26:4932-7. [PMID: 15769527 DOI: 10.1016/j.biomaterials.2005.01.026] [Citation(s) in RCA: 161] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2004] [Accepted: 01/07/2005] [Indexed: 10/25/2022]
Abstract
Based on the incomplete understanding on how filler features influence the wear resistance and monomer conversion of resin composites, this study sought to evaluate whether materials containing different shapes and combinations of size of filler particles would perform similarly in terms of three-body abrasion and degree of conversion. Twelve experimental monomodal, bimodal or trimodal composites containing either spherical or irregular shaped fillers ranging from 100 to 1500 nm were examined. Wear testings were conducted in the OHSU wear machine (n = 6) and quantified after 10(5) cycles using a profilometer. Degree of conversion (DC) was measured by FTIR spectrometry at the surface of the composites (n = 6). Data sets were analyzed using one-way Anova and Tukey's test at a significance level of 0.05. Filler size and geometry was found to have a significant effect on wear resistance and DC of composites. At specific sizes and combinations, the presence of small filler particles, either spherical or irregular, may aid in enhancing the wear resistance of composites, without compromising the percentage of reacted carbon double bonds.
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Affiliation(s)
- C P Turssi
- Division of Biomaterials and Biomechanics, School of Dentistry, Oregon Health & Sciences University, Portland, OR, USA.
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Gornick W, Lang D, Glenn L, Dhar V, Vogel K. Investigation of nosocomial Staphylococcus aureus sepsis in a neonatal intensive care unit: Absence of clonal spread. Am J Infect Control 2005. [DOI: 10.1016/j.ajic.2005.04.134] [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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Brugger R, Simões Nunes C, Hug D, Vogel K, Guggenbuhl P, Mascarello F, Augem S, Wyss M, van Loon APGM, Pasamontes L. Characteristics of fungal phytases from Aspergillus fumigatus and Sartorya fumigata. Appl Microbiol Biotechnol 2004; 63:383-9. [PMID: 12802525 DOI: 10.1007/s00253-003-1337-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2003] [Revised: 04/04/2003] [Accepted: 04/11/2003] [Indexed: 10/26/2022]
Abstract
Aspergillus fumigatus phytase has previously been identified as a phytase with a series of favourable properties that may be relevant in animal and human nutrition, both for maximising phytic acid degradation and for increasing mineral and amino acid availability. To study the natural variability in amino acid sequence and its impact on the catalytic properties of the enzyme, we cloned and overexpressed the phytase genes and proteins from six new purported A. fumigatus isolates. Five of these phytases displayed < or= 2 amino acid substitutions and had virtually identical stability and catalytic properties when compared with the previously described A. fumigatus ATCC 13073 phytase. In contrast, the phytase from isolate ATCC 32239 ( Sartorya fumigata, the anamorph of which was identified as A. fumigatus) was more divergent (only 86% amino acid sequence identity), had a higher specific activity with phytic acid, and displayed distinct differences in substrate specificity and pH-activity profile. Finally, comparative experiments confirmed the favourable stability and catalytic properties of A. fumigatus phytase.
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Affiliation(s)
- R Brugger
- Biotechnology Department, Roche Vitamins Ltd, Building 203/17B, 4070 Basel, Switzerland
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Dankers S, Leipertz A, Will S, Arndt J, Vogel K, Schraml S, Hemm A. In-situ Measurement of Primary Particle Sizes during Carbon Black Production. Chem Eng Technol 2003. [DOI: 10.1002/ceat.200302955] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Dankers S, Schraml S, Will S, Arndt J, Vogel K, Leipertz A. On-line-Charakterisierung von Industrierußen mit der zeitaufgelösten laserinduzierten Glühtechnik (TIRE-LII). CHEM-ING-TECH 2002. [DOI: 10.1002/1522-2640(200205)74:5<551::aid-cite551>3.0.co;2-b] [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: 11/08/2022]
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